* [0/22] Advansys updates 2007-09-09
@ 2007-09-09 14:53 Matthew Wilcox
2007-09-09 14:56 ` [PATCH 01/22] advansys: Fix VLB driver name Matthew Wilcox
` (22 more replies)
0 siblings, 23 replies; 52+ messages in thread
From: Matthew Wilcox @ 2007-09-09 14:53 UTC (permalink / raw)
To: linux-scsi
Here's another mammoth patch series for the advansys driver against
scsi-misc. I've tested that it compiles at each stage and that the
final result works.
Some important parts to note:
1/22 Essential bugfix. Please apply ASAP.
4/22 Reformat microcode. Boring and large.
6,7,8,9/22 Remove internal queueing from driver
11/22 Allow advansys to accept 16-byte commands for wide boards
13/22 Remove some custom wrappers
15/22 Add DRV_NAME
16/22 Eliminate prototypes. Boring and large.
19/22 Fix simultaneous calls to ->queuecommand
--
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours. We can't possibly take such
a retrograde step."
^ permalink raw reply [flat|nested] 52+ messages in thread* [PATCH 01/22] advansys: Fix VLB driver name 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox @ 2007-09-09 14:56 ` Matthew Wilcox 2007-09-09 14:56 ` [PATCH 02/22] advansys: Create AdvBuildCarrierFreelist Matthew Wilcox ` (21 subsequent siblings) 22 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 14:56 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox You can't have two drivers for the same bus type with the same name. Since ISA and VLB are both isa_drivers, rename the VLB one to advansys_vlb. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 4d4d7c9..27b3e95 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -16985,7 +16985,7 @@ static struct isa_driver advansys_vlb_driver = { .remove = __devexit_p(advansys_isa_remove), .driver = { .owner = THIS_MODULE, - .name = "advansys", + .name = "advansys_vlb", }, }; -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 02/22] advansys: Create AdvBuildCarrierFreelist 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox 2007-09-09 14:56 ` [PATCH 01/22] advansys: Fix VLB driver name Matthew Wilcox @ 2007-09-09 14:56 ` Matthew Wilcox 2007-09-09 14:56 ` [PATCH 03/22] advansys: Create AdvLoadMicrocode Matthew Wilcox ` (20 subsequent siblings) 22 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 14:56 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox Split AdvBuildCarrierFreelist out of AdvInitAsc3550Driver, AdvInitAsc38C0800Driver and AdvInitAsc38C1600Driver. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 219 +++++++++++----------------------------------- 1 files changed, 53 insertions(+), 166 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 27b3e95..c216d6a 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -12881,6 +12881,56 @@ AdvInitGetConfig(struct pci_dev *pdev, ADV_DVC_VAR *asc_dvc) return warn_code; } +static void AdvBuildCarrierFreelist(struct adv_dvc_var *asc_dvc) +{ + ADV_CARR_T *carrp; + ADV_SDCNT buf_size; + ADV_PADDR carr_paddr; + + BUG_ON(!asc_dvc->carrier_buf); + + carrp = (ADV_CARR_T *) ADV_16BALIGN(asc_dvc->carrier_buf); + asc_dvc->carr_freelist = NULL; + if (carrp == asc_dvc->carrier_buf) { + buf_size = ADV_CARRIER_BUFSIZE; + } else { + buf_size = ADV_CARRIER_BUFSIZE - sizeof(ADV_CARR_T); + } + + do { + /* Get physical address of the carrier 'carrp'. */ + ADV_DCNT contig_len = sizeof(ADV_CARR_T); + carr_paddr = cpu_to_le32(DvcGetPhyAddr(asc_dvc, NULL, + (uchar *)carrp, + (ADV_SDCNT *)&contig_len, + ADV_IS_CARRIER_FLAG)); + + buf_size -= sizeof(ADV_CARR_T); + + /* + * If the current carrier is not physically contiguous, then + * maybe there was a page crossing. Try the next carrier + * aligned start address. + */ + if (contig_len < sizeof(ADV_CARR_T)) { + carrp++; + continue; + } + + carrp->carr_pa = carr_paddr; + carrp->carr_va = cpu_to_le32(ADV_VADDR_TO_U32(carrp)); + + /* + * Insert the carrier at the beginning of the freelist. + */ + carrp->next_vpa = + cpu_to_le32(ADV_VADDR_TO_U32(asc_dvc->carr_freelist)); + asc_dvc->carr_freelist = carrp; + + carrp++; + } while (buf_size > 0); +} + /* * Initialize the ASC-3550. * @@ -12902,10 +12952,6 @@ static int AdvInitAsc3550Driver(ADV_DVC_VAR *asc_dvc) int word; int j; int adv_asc3550_expanded_size; - ADV_CARR_T *carrp; - ADV_DCNT contig_len; - ADV_SDCNT buf_size; - ADV_PADDR carr_paddr; int i; ushort scsi_cfg1; uchar tid; @@ -13307,57 +13353,7 @@ static int AdvInitAsc3550Driver(ADV_DVC_VAR *asc_dvc) AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_SEL_MASK, ADV_TID_TO_TIDMASK(asc_dvc->chip_scsi_id)); - /* - * Build carrier freelist. - * - * Driver must have already allocated memory and set 'carrier_buf'. - */ - ASC_ASSERT(asc_dvc->carrier_buf != NULL); - - carrp = (ADV_CARR_T *) ADV_16BALIGN(asc_dvc->carrier_buf); - asc_dvc->carr_freelist = NULL; - if (carrp == (ADV_CARR_T *) asc_dvc->carrier_buf) { - buf_size = ADV_CARRIER_BUFSIZE; - } else { - buf_size = ADV_CARRIER_BUFSIZE - sizeof(ADV_CARR_T); - } - - do { - /* - * Get physical address of the carrier 'carrp'. - */ - contig_len = sizeof(ADV_CARR_T); - carr_paddr = - cpu_to_le32(DvcGetPhyAddr - (asc_dvc, NULL, (uchar *)carrp, - (ADV_SDCNT *)&contig_len, - ADV_IS_CARRIER_FLAG)); - - buf_size -= sizeof(ADV_CARR_T); - - /* - * If the current carrier is not physically contiguous, then - * maybe there was a page crossing. Try the next carrier aligned - * start address. - */ - if (contig_len < sizeof(ADV_CARR_T)) { - carrp++; - continue; - } - - carrp->carr_pa = carr_paddr; - carrp->carr_va = cpu_to_le32(ADV_VADDR_TO_U32(carrp)); - - /* - * Insert the carrier at the beginning of the freelist. - */ - carrp->next_vpa = - cpu_to_le32(ADV_VADDR_TO_U32(asc_dvc->carr_freelist)); - asc_dvc->carr_freelist = carrp; - - carrp++; - } - while (buf_size > 0); + AdvBuildCarrierFreelist(asc_dvc); /* * Set-up the Host->RISC Initiator Command Queue (ICQ). @@ -13471,10 +13467,6 @@ static int AdvInitAsc38C0800Driver(ADV_DVC_VAR *asc_dvc) int word; int j; int adv_asc38C0800_expanded_size; - ADV_CARR_T *carrp; - ADV_DCNT contig_len; - ADV_SDCNT buf_size; - ADV_PADDR carr_paddr; int i; ushort scsi_cfg1; uchar byte; @@ -13920,57 +13912,7 @@ static int AdvInitAsc38C0800Driver(ADV_DVC_VAR *asc_dvc) AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_SEL_MASK, ADV_TID_TO_TIDMASK(asc_dvc->chip_scsi_id)); - /* - * Build the carrier freelist. - * - * Driver must have already allocated memory and set 'carrier_buf'. - */ - ASC_ASSERT(asc_dvc->carrier_buf != NULL); - - carrp = (ADV_CARR_T *) ADV_16BALIGN(asc_dvc->carrier_buf); - asc_dvc->carr_freelist = NULL; - if (carrp == (ADV_CARR_T *) asc_dvc->carrier_buf) { - buf_size = ADV_CARRIER_BUFSIZE; - } else { - buf_size = ADV_CARRIER_BUFSIZE - sizeof(ADV_CARR_T); - } - - do { - /* - * Get physical address for the carrier 'carrp'. - */ - contig_len = sizeof(ADV_CARR_T); - carr_paddr = - cpu_to_le32(DvcGetPhyAddr - (asc_dvc, NULL, (uchar *)carrp, - (ADV_SDCNT *)&contig_len, - ADV_IS_CARRIER_FLAG)); - - buf_size -= sizeof(ADV_CARR_T); - - /* - * If the current carrier is not physically contiguous, then - * maybe there was a page crossing. Try the next carrier aligned - * start address. - */ - if (contig_len < sizeof(ADV_CARR_T)) { - carrp++; - continue; - } - - carrp->carr_pa = carr_paddr; - carrp->carr_va = cpu_to_le32(ADV_VADDR_TO_U32(carrp)); - - /* - * Insert the carrier at the beginning of the freelist. - */ - carrp->next_vpa = - cpu_to_le32(ADV_VADDR_TO_U32(asc_dvc->carr_freelist)); - asc_dvc->carr_freelist = carrp; - - carrp++; - } - while (buf_size > 0); + AdvBuildCarrierFreelist(asc_dvc); /* * Set-up the Host->RISC Initiator Command Queue (ICQ). @@ -14087,10 +14029,6 @@ static int AdvInitAsc38C1600Driver(ADV_DVC_VAR *asc_dvc) long word; int j; int adv_asc38C1600_expanded_size; - ADV_CARR_T *carrp; - ADV_DCNT contig_len; - ADV_SDCNT buf_size; - ADV_PADDR carr_paddr; int i; ushort scsi_cfg1; uchar byte; @@ -14544,58 +14482,7 @@ static int AdvInitAsc38C1600Driver(ADV_DVC_VAR *asc_dvc) AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_SEL_MASK, ADV_TID_TO_TIDMASK(asc_dvc->chip_scsi_id)); - /* - * Build the carrier freelist. - * - * Driver must have already allocated memory and set 'carrier_buf'. - */ - - ASC_ASSERT(asc_dvc->carrier_buf != NULL); - - carrp = (ADV_CARR_T *) ADV_16BALIGN(asc_dvc->carrier_buf); - asc_dvc->carr_freelist = NULL; - if (carrp == (ADV_CARR_T *) asc_dvc->carrier_buf) { - buf_size = ADV_CARRIER_BUFSIZE; - } else { - buf_size = ADV_CARRIER_BUFSIZE - sizeof(ADV_CARR_T); - } - - do { - /* - * Get physical address for the carrier 'carrp'. - */ - contig_len = sizeof(ADV_CARR_T); - carr_paddr = - cpu_to_le32(DvcGetPhyAddr - (asc_dvc, NULL, (uchar *)carrp, - (ADV_SDCNT *)&contig_len, - ADV_IS_CARRIER_FLAG)); - - buf_size -= sizeof(ADV_CARR_T); - - /* - * If the current carrier is not physically contiguous, then - * maybe there was a page crossing. Try the next carrier aligned - * start address. - */ - if (contig_len < sizeof(ADV_CARR_T)) { - carrp++; - continue; - } - - carrp->carr_pa = carr_paddr; - carrp->carr_va = cpu_to_le32(ADV_VADDR_TO_U32(carrp)); - - /* - * Insert the carrier at the beginning of the freelist. - */ - carrp->next_vpa = - cpu_to_le32(ADV_VADDR_TO_U32(asc_dvc->carr_freelist)); - asc_dvc->carr_freelist = carrp; - - carrp++; - } - while (buf_size > 0); + AdvBuildCarrierFreelist(asc_dvc); /* * Set-up the Host->RISC Initiator Command Queue (ICQ). -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 03/22] advansys: Create AdvLoadMicrocode 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox 2007-09-09 14:56 ` [PATCH 01/22] advansys: Fix VLB driver name Matthew Wilcox 2007-09-09 14:56 ` [PATCH 02/22] advansys: Create AdvBuildCarrierFreelist Matthew Wilcox @ 2007-09-09 14:56 ` Matthew Wilcox 2007-09-09 14:56 ` [PATCH 04/22] advansys: Reformat microcode Matthew Wilcox ` (19 subsequent siblings) 22 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 14:56 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox Split AdvLoadMicrocode out of AdvInitAsc3550Driver, AdvInitAsc38C0800Driver and AdvInitAsc38C1600Driver. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 382 +++++++++++++---------------------------------- 1 files changed, 107 insertions(+), 275 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index c216d6a..0f02f3f 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -12932,6 +12932,78 @@ static void AdvBuildCarrierFreelist(struct adv_dvc_var *asc_dvc) } /* + * Load the Microcode + * + * Write the microcode image to RISC memory starting at address 0. + * + * The microcode is stored compressed in the following format: + * + * 254 word (508 byte) table indexed by byte code followed + * by the following byte codes: + * + * 1-Byte Code: + * 00: Emit word 0 in table. + * 01: Emit word 1 in table. + * . + * FD: Emit word 253 in table. + * + * Multi-Byte Code: + * FE WW WW: (3 byte code) Word to emit is the next word WW WW. + * FF BB WW WW: (4 byte code) Emit BB count times next word WW WW. + * + * Returns 0 or an error if the checksum doesn't match + */ +static int AdvLoadMicrocode(AdvPortAddr iop_base, unsigned char *buf, int size, + int memsize, int chksum) +{ + int i, j, end, len = 0; + ADV_DCNT sum; + + AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0); + + for (i = 253 * 2; i < size; i++) { + if (buf[i] == 0xff) { + unsigned short word = (buf[i + 3] << 8) | buf[i + 2]; + for (j = 0; j < buf[i + 1]; j++) { + AdvWriteWordAutoIncLram(iop_base, word); + len += 2; + } + i += 3; + } else if (buf[i] == 0xfe) { + unsigned short word = (buf[i + 2] << 8) | buf[i + 1]; + AdvWriteWordAutoIncLram(iop_base, word); + i += 2; + len += 2; + } else { + unsigned char off = buf[i] * 2; + unsigned short word = (buf[off + 1] << 8) | buf[off]; + AdvWriteWordAutoIncLram(iop_base, word); + len += 2; + } + } + + end = len; + + while (len < memsize) { + AdvWriteWordAutoIncLram(iop_base, 0); + len += 2; + } + + /* Verify the microcode checksum. */ + sum = 0; + AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0); + + for (len = 0; len < end; len += 2) { + sum += AdvReadWordAutoIncLram(iop_base); + } + + if (sum != chksum) + return ASC_IERR_MCODE_CHKSUM; + + return 0; +} + +/* * Initialize the ASC-3550. * * On failure set the ADV_DVC_VAR field 'err_code' and return ADV_ERROR. @@ -12945,13 +13017,10 @@ static int AdvInitAsc3550Driver(ADV_DVC_VAR *asc_dvc) { AdvPortAddr iop_base; ushort warn_code; - ADV_DCNT sum; int begin_addr; int end_addr; ushort code_sum; int word; - int j; - int adv_asc3550_expanded_size; int i; ushort scsi_cfg1; uchar tid; @@ -12960,15 +13029,14 @@ static int AdvInitAsc3550Driver(ADV_DVC_VAR *asc_dvc) uchar max_cmd[ADV_MAX_TID + 1]; /* If there is already an error, don't continue. */ - if (asc_dvc->err_code != 0) { + if (asc_dvc->err_code != 0) return ADV_ERROR; - } /* * The caller must set 'chip_type' to ADV_CHIP_ASC3550. */ if (asc_dvc->chip_type != ADV_CHIP_ASC3550) { - asc_dvc->err_code |= ASC_IERR_BAD_CHIPTYPE; + asc_dvc->err_code = ASC_IERR_BAD_CHIPTYPE; return ADV_ERROR; } @@ -13012,84 +13080,11 @@ static int AdvInitAsc3550Driver(ADV_DVC_VAR *asc_dvc) max_cmd[tid]); } - /* - * Load the Microcode - * - * Write the microcode image to RISC memory starting at address 0. - */ - AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0); - /* Assume the following compressed format of the microcode buffer: - * - * 254 word (508 byte) table indexed by byte code followed - * by the following byte codes: - * - * 1-Byte Code: - * 00: Emit word 0 in table. - * 01: Emit word 1 in table. - * . - * FD: Emit word 253 in table. - * - * Multi-Byte Code: - * FE WW WW: (3 byte code) Word to emit is the next word WW WW. - * FF BB WW WW: (4 byte code) Emit BB count times next word WW WW. - */ - word = 0; - for (i = 253 * 2; i < _adv_asc3550_size; i++) { - if (_adv_asc3550_buf[i] == 0xff) { - for (j = 0; j < _adv_asc3550_buf[i + 1]; j++) { - AdvWriteWordAutoIncLram(iop_base, (((ushort) - _adv_asc3550_buf - [i + - 3] << 8) | - _adv_asc3550_buf - [i + 2])); - word++; - } - i += 3; - } else if (_adv_asc3550_buf[i] == 0xfe) { - AdvWriteWordAutoIncLram(iop_base, (((ushort) - _adv_asc3550_buf[i + - 2] - << 8) | - _adv_asc3550_buf[i + - 1])); - i += 2; - word++; - } else { - AdvWriteWordAutoIncLram(iop_base, (((ushort) - _adv_asc3550_buf[(_adv_asc3550_buf[i] * 2) + 1] << 8) | _adv_asc3550_buf[_adv_asc3550_buf[i] * 2])); - word++; - } - } - - /* - * Set 'word' for later use to clear the rest of memory and save - * the expanded mcode size. - */ - word *= 2; - adv_asc3550_expanded_size = word; - - /* - * Clear the rest of ASC-3550 Internal RAM (8KB). - */ - for (; word < ADV_3550_MEMSIZE; word += 2) { - AdvWriteWordAutoIncLram(iop_base, 0); - } - - /* - * Verify the microcode checksum. - */ - sum = 0; - AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0); - - for (word = 0; word < adv_asc3550_expanded_size; word += 2) { - sum += AdvReadWordAutoIncLram(iop_base); - } - - if (sum != _adv_asc3550_chksum) { - asc_dvc->err_code |= ASC_IERR_MCODE_CHKSUM; + asc_dvc->err_code = AdvLoadMicrocode(iop_base, _adv_asc3550_buf, + _adv_asc3550_size, ADV_3550_MEMSIZE, + _adv_asc3550_chksum); + if (asc_dvc->err_code) return ADV_ERROR; - } /* * Restore the RISC memory BIOS region. @@ -13460,13 +13455,10 @@ static int AdvInitAsc38C0800Driver(ADV_DVC_VAR *asc_dvc) { AdvPortAddr iop_base; ushort warn_code; - ADV_DCNT sum; int begin_addr; int end_addr; ushort code_sum; int word; - int j; - int adv_asc38C0800_expanded_size; int i; ushort scsi_cfg1; uchar byte; @@ -13476,9 +13468,8 @@ static int AdvInitAsc38C0800Driver(ADV_DVC_VAR *asc_dvc) uchar max_cmd[ADV_MAX_TID + 1]; /* If there is already an error, don't continue. */ - if (asc_dvc->err_code != 0) { + if (asc_dvc->err_code != 0) return ADV_ERROR; - } /* * The caller must set 'chip_type' to ADV_CHIP_ASC38C0800. @@ -13550,7 +13541,7 @@ static int AdvInitAsc38C0800Driver(ADV_DVC_VAR *asc_dvc) byte = AdvReadByteRegister(iop_base, IOPB_RAM_BIST); if ((byte & RAM_TEST_DONE) == 0 || (byte & 0x0F) != PRE_TEST_VALUE) { - asc_dvc->err_code |= ASC_IERR_BIST_PRE_TEST; + asc_dvc->err_code = ASC_IERR_BIST_PRE_TEST; return ADV_ERROR; } @@ -13558,7 +13549,7 @@ static int AdvInitAsc38C0800Driver(ADV_DVC_VAR *asc_dvc) DvcSleepMilliSecond(10); /* Wait for 10ms before reading back. */ if (AdvReadByteRegister(iop_base, IOPB_RAM_BIST) != NORMAL_VALUE) { - asc_dvc->err_code |= ASC_IERR_BIST_PRE_TEST; + asc_dvc->err_code = ASC_IERR_BIST_PRE_TEST; return ADV_ERROR; } } @@ -13577,99 +13568,18 @@ static int AdvInitAsc38C0800Driver(ADV_DVC_VAR *asc_dvc) if ((byte & RAM_TEST_DONE) == 0 || (byte & RAM_TEST_STATUS) != 0) { /* Get here if Done bit not set or Status not 0. */ asc_dvc->bist_err_code = byte; /* for BIOS display message */ - asc_dvc->err_code |= ASC_IERR_BIST_RAM_TEST; + asc_dvc->err_code = ASC_IERR_BIST_RAM_TEST; return ADV_ERROR; } /* We need to reset back to normal mode after LRAM test passes. */ AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, NORMAL_MODE); - /* - * Load the Microcode - * - * Write the microcode image to RISC memory starting at address 0. - * - */ - AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0); - - /* Assume the following compressed format of the microcode buffer: - * - * 254 word (508 byte) table indexed by byte code followed - * by the following byte codes: - * - * 1-Byte Code: - * 00: Emit word 0 in table. - * 01: Emit word 1 in table. - * . - * FD: Emit word 253 in table. - * - * Multi-Byte Code: - * FE WW WW: (3 byte code) Word to emit is the next word WW WW. - * FF BB WW WW: (4 byte code) Emit BB count times next word WW WW. - */ - word = 0; - for (i = 253 * 2; i < _adv_asc38C0800_size; i++) { - if (_adv_asc38C0800_buf[i] == 0xff) { - for (j = 0; j < _adv_asc38C0800_buf[i + 1]; j++) { - AdvWriteWordAutoIncLram(iop_base, (((ushort) - _adv_asc38C0800_buf - [i + - 3] << 8) | - _adv_asc38C0800_buf - [i + 2])); - word++; - } - i += 3; - } else if (_adv_asc38C0800_buf[i] == 0xfe) { - AdvWriteWordAutoIncLram(iop_base, (((ushort) - _adv_asc38C0800_buf - [i + - 2] << 8) | - _adv_asc38C0800_buf[i - + - 1])); - i += 2; - word++; - } else { - AdvWriteWordAutoIncLram(iop_base, (((ushort) - _adv_asc38C0800_buf[(_adv_asc38C0800_buf[i] * 2) + 1] << 8) | _adv_asc38C0800_buf[_adv_asc38C0800_buf[i] * 2])); - word++; - } - } - - /* - * Set 'word' for later use to clear the rest of memory and save - * the expanded mcode size. - */ - word *= 2; - adv_asc38C0800_expanded_size = word; - - /* - * Clear the rest of ASC-38C0800 Internal RAM (16KB). - */ - for (; word < ADV_38C0800_MEMSIZE; word += 2) { - AdvWriteWordAutoIncLram(iop_base, 0); - } - - /* - * Verify the microcode checksum. - */ - sum = 0; - AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0); - - for (word = 0; word < adv_asc38C0800_expanded_size; word += 2) { - sum += AdvReadWordAutoIncLram(iop_base); - } - ASC_DBG2(1, "AdvInitAsc38C0800Driver: word %d, i %d\n", word, i); - - ASC_DBG2(1, - "AdvInitAsc38C0800Driver: sum 0x%lx, _adv_asc38C0800_chksum 0x%lx\n", - (ulong)sum, (ulong)_adv_asc38C0800_chksum); - - if (sum != _adv_asc38C0800_chksum) { - asc_dvc->err_code |= ASC_IERR_MCODE_CHKSUM; + asc_dvc->err_code = AdvLoadMicrocode(iop_base, _adv_asc38C0800_buf, + _adv_asc38C0800_size, ADV_38C0800_MEMSIZE, + _adv_asc38C0800_chksum); + if (asc_dvc->err_code) return ADV_ERROR; - } /* * Restore the RISC memory BIOS region. @@ -13807,16 +13717,18 @@ static int AdvInitAsc38C0800Driver(ADV_DVC_VAR *asc_dvc) } /* - * All kind of combinations of devices attached to one of four connectors - * are acceptable except HVD device attached. For example, LVD device can - * be attached to SE connector while SE device attached to LVD connector. - * If LVD device attached to SE connector, it only runs up to Ultra speed. + * All kind of combinations of devices attached to one of four + * connectors are acceptable except HVD device attached. For example, + * LVD device can be attached to SE connector while SE device attached + * to LVD connector. If LVD device attached to SE connector, it only + * runs up to Ultra speed. * - * If an HVD device is attached to one of LVD connectors, return an error. - * However, there is no way to detect HVD device attached to SE connectors. + * If an HVD device is attached to one of LVD connectors, return an + * error. However, there is no way to detect HVD device attached to + * SE connectors. */ if (scsi_cfg1 & HVD) { - asc_dvc->err_code |= ASC_IERR_HVD_DEVICE; + asc_dvc->err_code = ASC_IERR_HVD_DEVICE; return ADV_ERROR; } @@ -13825,8 +13737,8 @@ static int AdvInitAsc38C0800Driver(ADV_DVC_VAR *asc_dvc) * set the termination value based on a table listed in a_condor.h. * * If manual termination was specified with an EEPROM setting then - * 'termination' was set-up in AdvInitFrom38C0800EEPROM() and is ready to - * be 'ored' into SCSI_CFG1. + * 'termination' was set-up in AdvInitFrom38C0800EEPROM() and is ready + * to be 'ored' into SCSI_CFG1. */ if ((asc_dvc->cfg->termination & TERM_SE) == 0) { /* SE automatic termination control is enabled. */ @@ -13872,9 +13784,9 @@ static int AdvInitAsc38C0800Driver(ADV_DVC_VAR *asc_dvc) scsi_cfg1 |= (~asc_dvc->cfg->termination & 0xF0); /* - * Clear BIG_ENDIAN, DIS_TERM_DRV, Terminator Polarity and HVD/LVD/SE bits - * and set possibly modified termination control bits in the Microcode - * SCSI_CFG1 Register Value. + * Clear BIG_ENDIAN, DIS_TERM_DRV, Terminator Polarity and HVD/LVD/SE + * bits and set possibly modified termination control bits in the + * Microcode SCSI_CFG1 Register Value. */ scsi_cfg1 &= (~BIG_ENDIAN & ~DIS_TERM_DRV & ~TERM_POL & ~HVD_LVD_SE); @@ -14022,13 +13934,10 @@ static int AdvInitAsc38C1600Driver(ADV_DVC_VAR *asc_dvc) { AdvPortAddr iop_base; ushort warn_code; - ADV_DCNT sum; int begin_addr; int end_addr; ushort code_sum; long word; - int j; - int adv_asc38C1600_expanded_size; int i; ushort scsi_cfg1; uchar byte; @@ -14113,7 +14022,7 @@ static int AdvInitAsc38C1600Driver(ADV_DVC_VAR *asc_dvc) byte = AdvReadByteRegister(iop_base, IOPB_RAM_BIST); if ((byte & RAM_TEST_DONE) == 0 || (byte & 0x0F) != PRE_TEST_VALUE) { - asc_dvc->err_code |= ASC_IERR_BIST_PRE_TEST; + asc_dvc->err_code = ASC_IERR_BIST_PRE_TEST; return ADV_ERROR; } @@ -14121,7 +14030,7 @@ static int AdvInitAsc38C1600Driver(ADV_DVC_VAR *asc_dvc) DvcSleepMilliSecond(10); /* Wait for 10ms before reading back. */ if (AdvReadByteRegister(iop_base, IOPB_RAM_BIST) != NORMAL_VALUE) { - asc_dvc->err_code |= ASC_IERR_BIST_PRE_TEST; + asc_dvc->err_code = ASC_IERR_BIST_PRE_TEST; return ADV_ERROR; } } @@ -14140,95 +14049,18 @@ static int AdvInitAsc38C1600Driver(ADV_DVC_VAR *asc_dvc) if ((byte & RAM_TEST_DONE) == 0 || (byte & RAM_TEST_STATUS) != 0) { /* Get here if Done bit not set or Status not 0. */ asc_dvc->bist_err_code = byte; /* for BIOS display message */ - asc_dvc->err_code |= ASC_IERR_BIST_RAM_TEST; + asc_dvc->err_code = ASC_IERR_BIST_RAM_TEST; return ADV_ERROR; } /* We need to reset back to normal mode after LRAM test passes. */ AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, NORMAL_MODE); - /* - * Load the Microcode - * - * Write the microcode image to RISC memory starting at address 0. - * - */ - AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0); - - /* - * Assume the following compressed format of the microcode buffer: - * - * 254 word (508 byte) table indexed by byte code followed - * by the following byte codes: - * - * 1-Byte Code: - * 00: Emit word 0 in table. - * 01: Emit word 1 in table. - * . - * FD: Emit word 253 in table. - * - * Multi-Byte Code: - * FE WW WW: (3 byte code) Word to emit is the next word WW WW. - * FF BB WW WW: (4 byte code) Emit BB count times next word WW WW. - */ - word = 0; - for (i = 253 * 2; i < _adv_asc38C1600_size; i++) { - if (_adv_asc38C1600_buf[i] == 0xff) { - for (j = 0; j < _adv_asc38C1600_buf[i + 1]; j++) { - AdvWriteWordAutoIncLram(iop_base, (((ushort) - _adv_asc38C1600_buf - [i + - 3] << 8) | - _adv_asc38C1600_buf - [i + 2])); - word++; - } - i += 3; - } else if (_adv_asc38C1600_buf[i] == 0xfe) { - AdvWriteWordAutoIncLram(iop_base, (((ushort) - _adv_asc38C1600_buf - [i + - 2] << 8) | - _adv_asc38C1600_buf[i - + - 1])); - i += 2; - word++; - } else { - AdvWriteWordAutoIncLram(iop_base, (((ushort) - _adv_asc38C1600_buf[(_adv_asc38C1600_buf[i] * 2) + 1] << 8) | _adv_asc38C1600_buf[_adv_asc38C1600_buf[i] * 2])); - word++; - } - } - - /* - * Set 'word' for later use to clear the rest of memory and save - * the expanded mcode size. - */ - word *= 2; - adv_asc38C1600_expanded_size = word; - - /* - * Clear the rest of ASC-38C1600 Internal RAM (32KB). - */ - for (; word < ADV_38C1600_MEMSIZE; word += 2) { - AdvWriteWordAutoIncLram(iop_base, 0); - } - - /* - * Verify the microcode checksum. - */ - sum = 0; - AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0); - - for (word = 0; word < adv_asc38C1600_expanded_size; word += 2) { - sum += AdvReadWordAutoIncLram(iop_base); - } - - if (sum != _adv_asc38C1600_chksum) { - asc_dvc->err_code |= ASC_IERR_MCODE_CHKSUM; + asc_dvc->err_code = AdvLoadMicrocode(iop_base, _adv_asc38C1600_buf, + _adv_asc38C1600_size, ADV_38C1600_MEMSIZE, + _adv_asc38C1600_chksum); + if (asc_dvc->err_code) return ADV_ERROR; - } /* * Restore the RISC memory BIOS region. -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 04/22] advansys: Reformat microcode 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox ` (2 preceding siblings ...) 2007-09-09 14:56 ` [PATCH 03/22] advansys: Create AdvLoadMicrocode Matthew Wilcox @ 2007-09-09 14:56 ` Matthew Wilcox 2007-09-09 14:56 ` [PATCH 05/22] advansys: Shrink advansys_board_found a little more Matthew Wilcox ` (18 subsequent siblings) 22 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 14:56 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox It's just data, so format it to something that looks more visually appealing (and saves some lines) Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 3163 ++++++++++++++++++----------------------------- 1 files changed, 1186 insertions(+), 1977 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 0f02f3f..5649bf4 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -8111,293 +8111,197 @@ static int AscISR(ASC_DVC_VAR *asc_dvc) /* Microcode buffer is kept after initialization for error recovery. */ static uchar _asc_mcode_buf[] = { 0x01, 0x03, 0x01, 0x19, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, - 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0xC3, 0x12, 0x0D, 0x05, 0x01, 0x00, 0x00, 0x00, - 0x00, 0xFF, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0xFF, 0x80, 0xFF, 0xFF, 0x01, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC3, 0x12, 0x0D, 0x05, + 0x01, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0xFF, 0x80, 0xFF, 0xFF, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x23, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0xFF, - 0x00, 0x00, 0x00, 0x00, - 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0x88, - 0x00, 0x00, 0x00, 0x00, - 0x80, 0x73, 0x48, 0x04, 0x36, 0x00, 0x00, 0xA2, 0xC2, 0x00, 0x80, 0x73, - 0x03, 0x23, 0x36, 0x40, + 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0xE4, 0x88, 0x00, 0x00, 0x00, 0x00, 0x80, 0x73, 0x48, 0x04, + 0x36, 0x00, 0x00, 0xA2, 0xC2, 0x00, 0x80, 0x73, 0x03, 0x23, 0x36, 0x40, 0xB6, 0x00, 0x36, 0x00, 0x05, 0xD6, 0x0C, 0xD2, 0x12, 0xDA, 0x00, 0xA2, - 0xC2, 0x00, 0x92, 0x80, - 0x1E, 0x98, 0x50, 0x00, 0xF5, 0x00, 0x48, 0x98, 0xDF, 0x23, 0x36, 0x60, - 0xB6, 0x00, 0x92, 0x80, - 0x4F, 0x00, 0xF5, 0x00, 0x48, 0x98, 0xEF, 0x23, 0x36, 0x60, 0xB6, 0x00, - 0x92, 0x80, 0x80, 0x62, + 0xC2, 0x00, 0x92, 0x80, 0x1E, 0x98, 0x50, 0x00, 0xF5, 0x00, 0x48, 0x98, + 0xDF, 0x23, 0x36, 0x60, 0xB6, 0x00, 0x92, 0x80, 0x4F, 0x00, 0xF5, 0x00, + 0x48, 0x98, 0xEF, 0x23, 0x36, 0x60, 0xB6, 0x00, 0x92, 0x80, 0x80, 0x62, 0x92, 0x80, 0x00, 0x46, 0x15, 0xEE, 0x13, 0xEA, 0x02, 0x01, 0x09, 0xD8, - 0xCD, 0x04, 0x4D, 0x00, - 0x00, 0xA3, 0xD6, 0x00, 0xA6, 0x97, 0x7F, 0x23, 0x04, 0x61, 0x84, 0x01, - 0xE6, 0x84, 0xD2, 0xC1, - 0x80, 0x73, 0xCD, 0x04, 0x4D, 0x00, 0x00, 0xA3, 0xDA, 0x01, 0xA6, 0x97, - 0xC6, 0x81, 0xC2, 0x88, + 0xCD, 0x04, 0x4D, 0x00, 0x00, 0xA3, 0xD6, 0x00, 0xA6, 0x97, 0x7F, 0x23, + 0x04, 0x61, 0x84, 0x01, 0xE6, 0x84, 0xD2, 0xC1, 0x80, 0x73, 0xCD, 0x04, + 0x4D, 0x00, 0x00, 0xA3, 0xDA, 0x01, 0xA6, 0x97, 0xC6, 0x81, 0xC2, 0x88, 0x80, 0x73, 0x80, 0x77, 0x00, 0x01, 0x01, 0xA1, 0xFE, 0x00, 0x4F, 0x00, - 0x84, 0x97, 0x07, 0xA6, - 0x08, 0x01, 0x00, 0x33, 0x03, 0x00, 0xC2, 0x88, 0x03, 0x03, 0x01, 0xDE, - 0xC2, 0x88, 0xCE, 0x00, - 0x69, 0x60, 0xCE, 0x00, 0x02, 0x03, 0x4A, 0x60, 0x00, 0xA2, 0x78, 0x01, - 0x80, 0x63, 0x07, 0xA6, + 0x84, 0x97, 0x07, 0xA6, 0x08, 0x01, 0x00, 0x33, 0x03, 0x00, 0xC2, 0x88, + 0x03, 0x03, 0x01, 0xDE, 0xC2, 0x88, 0xCE, 0x00, 0x69, 0x60, 0xCE, 0x00, + 0x02, 0x03, 0x4A, 0x60, 0x00, 0xA2, 0x78, 0x01, 0x80, 0x63, 0x07, 0xA6, 0x24, 0x01, 0x78, 0x81, 0x03, 0x03, 0x80, 0x63, 0xE2, 0x00, 0x07, 0xA6, - 0x34, 0x01, 0x00, 0x33, - 0x04, 0x00, 0xC2, 0x88, 0x03, 0x07, 0x02, 0x01, 0x04, 0xCA, 0x0D, 0x23, - 0x68, 0x98, 0x4D, 0x04, - 0x04, 0x85, 0x05, 0xD8, 0x0D, 0x23, 0x68, 0x98, 0xCD, 0x04, 0x15, 0x23, - 0xF8, 0x88, 0xFB, 0x23, + 0x34, 0x01, 0x00, 0x33, 0x04, 0x00, 0xC2, 0x88, 0x03, 0x07, 0x02, 0x01, + 0x04, 0xCA, 0x0D, 0x23, 0x68, 0x98, 0x4D, 0x04, 0x04, 0x85, 0x05, 0xD8, + 0x0D, 0x23, 0x68, 0x98, 0xCD, 0x04, 0x15, 0x23, 0xF8, 0x88, 0xFB, 0x23, 0x02, 0x61, 0x82, 0x01, 0x80, 0x63, 0x02, 0x03, 0x06, 0xA3, 0x62, 0x01, - 0x00, 0x33, 0x0A, 0x00, - 0xC2, 0x88, 0x4E, 0x00, 0x07, 0xA3, 0x6E, 0x01, 0x00, 0x33, 0x0B, 0x00, - 0xC2, 0x88, 0xCD, 0x04, - 0x36, 0x2D, 0x00, 0x33, 0x1A, 0x00, 0xC2, 0x88, 0x50, 0x04, 0x88, 0x81, - 0x06, 0xAB, 0x82, 0x01, + 0x00, 0x33, 0x0A, 0x00, 0xC2, 0x88, 0x4E, 0x00, 0x07, 0xA3, 0x6E, 0x01, + 0x00, 0x33, 0x0B, 0x00, 0xC2, 0x88, 0xCD, 0x04, 0x36, 0x2D, 0x00, 0x33, + 0x1A, 0x00, 0xC2, 0x88, 0x50, 0x04, 0x88, 0x81, 0x06, 0xAB, 0x82, 0x01, 0x88, 0x81, 0x4E, 0x00, 0x07, 0xA3, 0x92, 0x01, 0x50, 0x00, 0x00, 0xA3, - 0x3C, 0x01, 0x00, 0x05, - 0x7C, 0x81, 0x46, 0x97, 0x02, 0x01, 0x05, 0xC6, 0x04, 0x23, 0xA0, 0x01, - 0x15, 0x23, 0xA1, 0x01, - 0xBE, 0x81, 0xFD, 0x23, 0x02, 0x61, 0x82, 0x01, 0x0A, 0xDA, 0x4A, 0x00, - 0x06, 0x61, 0x00, 0xA0, + 0x3C, 0x01, 0x00, 0x05, 0x7C, 0x81, 0x46, 0x97, 0x02, 0x01, 0x05, 0xC6, + 0x04, 0x23, 0xA0, 0x01, 0x15, 0x23, 0xA1, 0x01, 0xBE, 0x81, 0xFD, 0x23, + 0x02, 0x61, 0x82, 0x01, 0x0A, 0xDA, 0x4A, 0x00, 0x06, 0x61, 0x00, 0xA0, 0xB4, 0x01, 0x80, 0x63, 0xCD, 0x04, 0x36, 0x2D, 0x00, 0x33, 0x1B, 0x00, - 0xC2, 0x88, 0x06, 0x23, - 0x68, 0x98, 0xCD, 0x04, 0xE6, 0x84, 0x06, 0x01, 0x00, 0xA2, 0xD4, 0x01, - 0x57, 0x60, 0x00, 0xA0, - 0xDA, 0x01, 0xE6, 0x84, 0x80, 0x23, 0xA0, 0x01, 0xE6, 0x84, 0x80, 0x73, - 0x4B, 0x00, 0x06, 0x61, + 0xC2, 0x88, 0x06, 0x23, 0x68, 0x98, 0xCD, 0x04, 0xE6, 0x84, 0x06, 0x01, + 0x00, 0xA2, 0xD4, 0x01, 0x57, 0x60, 0x00, 0xA0, 0xDA, 0x01, 0xE6, 0x84, + 0x80, 0x23, 0xA0, 0x01, 0xE6, 0x84, 0x80, 0x73, 0x4B, 0x00, 0x06, 0x61, 0x00, 0xA2, 0x00, 0x02, 0x04, 0x01, 0x0C, 0xDE, 0x02, 0x01, 0x03, 0xCC, - 0x4F, 0x00, 0x84, 0x97, - 0xFC, 0x81, 0x08, 0x23, 0x02, 0x41, 0x82, 0x01, 0x4F, 0x00, 0x62, 0x97, - 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0x5D, 0x00, 0xFE, 0xC3, - 0x00, 0x63, 0x80, 0x73, 0xE6, 0x20, 0x02, 0x23, 0xE8, 0x00, 0x82, 0x73, - 0xFF, 0xFD, 0x80, 0x73, + 0x40, 0x36, 0x40, 0x3A, 0x40, 0x3E, 0x00, 0x63, 0x5A, 0x20, 0xC9, 0x40, + 0x00, 0xA0, 0xB4, 0x08, 0x5D, 0x00, 0xFE, 0xC3, 0x00, 0x63, 0x80, 0x73, + 0xE6, 0x20, 0x02, 0x23, 0xE8, 0x00, 0x82, 0x73, 0xFF, 0xFD, 0x80, 0x73, 0x13, 0x23, 0xF8, 0x88, 0x66, 0x20, 0xC0, 0x20, 0x04, 0x23, 0xA0, 0x01, - 0xA1, 0x23, 0xA1, 0x01, - 0x81, 0x62, 0xE2, 0x88, 0x80, 0x73, 0x80, 0x77, 0x68, 0x00, 0x00, 0xA2, - 0x80, 0x00, 0x03, 0xC2, - 0xF1, 0xC7, 0x41, 0x23, 0xF8, 0x88, 0x11, 0x23, 0xA1, 0x01, 0x04, 0x23, - 0xA0, 0x01, 0xE6, 0x84, + 0xA1, 0x23, 0xA1, 0x01, 0x81, 0x62, 0xE2, 0x88, 0x80, 0x73, 0x80, 0x77, + 0x68, 0x00, 0x00, 0xA2, 0x80, 0x00, 0x03, 0xC2, 0xF1, 0xC7, 0x41, 0x23, + 0xF8, 0x88, 0x11, 0x23, 0xA1, 0x01, 0x04, 0x23, 0xA0, 0x01, 0xE6, 0x84, }; static ushort _asc_mcode_size = sizeof(_asc_mcode_buf); @@ -10343,633 +10247,424 @@ AscMemWordSetLram(PortAddr iop_base, ushort s_addr, ushort set_wval, int words) /* Microcode buffer is kept after initialization for error recovery. */ static unsigned char _adv_asc3550_buf[] = { 0x00, 0x00, 0x00, 0xf2, 0x00, 0xf0, 0x00, 0x16, 0x18, 0xe4, 0x00, 0xfc, - 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0x03, 0x25, 0xfe, 0xca, - 0x18, 0xfe, 0x14, 0xf0, 0x08, 0x65, 0xfe, 0xc6, 0x18, 0x03, 0xff, 0x1a, - 0x00, 0x00, + 0x03, 0x25, 0xfe, 0xca, 0x18, 0xfe, 0x14, 0xf0, 0x08, 0x65, 0xfe, 0xc6, + 0x18, 0x03, 0xff, 0x1a, 0x00, 0x00, }; static unsigned short _adv_asc3550_size = sizeof(_adv_asc3550_buf); /* 0x13AD */ @@ -10978,672 +10673,449 @@ static ADV_DCNT _adv_asc3550_chksum = 0x04D52DDDUL; /* Expanded little-endian ch /* Microcode buffer is kept after initialization for error recovery. */ static unsigned char _adv_asc38C0800_buf[] = { 0x00, 0x00, 0x00, 0xf2, 0x00, 0xf0, 0x00, 0xfc, 0x00, 0x16, 0x18, 0xe4, - 0x01, 0x00, 0x48, 0xe4, - 0x18, 0x80, 0x03, 0xf6, 0x02, 0x00, 0xce, 0x19, 0x00, 0xfa, 0xff, 0xff, - 0x1c, 0x0f, 0x00, 0xf6, - 0x9e, 0xe7, 0xff, 0x00, 0x82, 0xe7, 0x00, 0xea, 0x01, 0xfa, 0x01, 0xe6, - 0x09, 0xe7, 0x55, 0xf0, + 0x01, 0x00, 0x48, 0xe4, 0x18, 0x80, 0x03, 0xf6, 0x02, 0x00, 0xce, 0x19, + 0x00, 0xfa, 0xff, 0xff, 0x1c, 0x0f, 0x00, 0xf6, 0x9e, 0xe7, 0xff, 0x00, + 0x82, 0xe7, 0x00, 0xea, 0x01, 0xfa, 0x01, 0xe6, 0x09, 0xe7, 0x55, 0xf0, 0x01, 0xf6, 0x03, 0x00, 0x04, 0x00, 0x10, 0x00, 0x1e, 0xf0, 0x85, 0xf0, - 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0x83, 0x33, 0x0b, 0x0e, - 0x02, 0x0f, 0xfe, 0x1b, 0x80, 0x04, 0xfe, 0x9b, 0x83, 0x33, 0x0b, 0x0e, - 0x02, 0x0f, 0xfe, 0x04, - 0x80, 0x04, 0xfe, 0x84, 0x83, 0x33, 0x0b, 0x0e, 0x02, 0x0f, 0xfe, 0x80, - 0x80, 0x04, 0xfe, 0x80, + 0x83, 0x33, 0x0b, 0x0e, 0x02, 0x0f, 0xfe, 0x1b, 0x80, 0x04, 0xfe, 0x9b, + 0x83, 0x33, 0x0b, 0x0e, 0x02, 0x0f, 0xfe, 0x04, 0x80, 0x04, 0xfe, 0x84, + 0x83, 0x33, 0x0b, 0x0e, 0x02, 0x0f, 0xfe, 0x80, 0x80, 0x04, 0xfe, 0x80, 0x83, 0xfe, 0xc9, 0x47, 0x0b, 0x0e, 0x02, 0x0f, 0xfe, 0x19, 0x81, 0x04, - 0xfe, 0x99, 0x83, 0xfe, - 0xca, 0x47, 0x0b, 0x0e, 0x02, 0x0f, 0xfe, 0x06, 0x83, 0x04, 0xfe, 0x86, - 0x83, 0xfe, 0xce, 0x47, - 0x0b, 0x0e, 0x02, 0x0f, 0xfe, 0x2c, 0x90, 0x04, 0xfe, 0xac, 0x93, 0x3a, - 0x0b, 0x0e, 0x02, 0x0f, + 0xfe, 0x99, 0x83, 0xfe, 0xca, 0x47, 0x0b, 0x0e, 0x02, 0x0f, 0xfe, 0x06, + 0x83, 0x04, 0xfe, 0x86, 0x83, 0xfe, 0xce, 0x47, 0x0b, 0x0e, 0x02, 0x0f, + 0xfe, 0x2c, 0x90, 0x04, 0xfe, 0xac, 0x93, 0x3a, 0x0b, 0x0e, 0x02, 0x0f, 0xfe, 0xae, 0x90, 0x04, 0xfe, 0xae, 0x93, 0x79, 0x0b, 0x0e, 0x02, 0x0f, - 0xfe, 0x08, 0x90, 0x04, - 0xfe, 0x88, 0x93, 0x3a, 0x0b, 0x0e, 0x02, 0x0f, 0xfe, 0x8a, 0x90, 0x04, - 0xfe, 0x8a, 0x93, 0x79, - 0x0b, 0x0e, 0x02, 0x0f, 0xfe, 0x0c, 0x90, 0x04, 0xfe, 0x8c, 0x93, 0x3a, - 0x0b, 0x0e, 0x02, 0x0f, + 0xfe, 0x08, 0x90, 0x04, 0xfe, 0x88, 0x93, 0x3a, 0x0b, 0x0e, 0x02, 0x0f, + 0xfe, 0x8a, 0x90, 0x04, 0xfe, 0x8a, 0x93, 0x79, 0x0b, 0x0e, 0x02, 0x0f, + 0xfe, 0x0c, 0x90, 0x04, 0xfe, 0x8c, 0x93, 0x3a, 0x0b, 0x0e, 0x02, 0x0f, 0xfe, 0x8e, 0x90, 0x04, 0xfe, 0x8e, 0x93, 0x79, 0x0b, 0x0e, 0x02, 0x0f, - 0xfe, 0x3c, 0x90, 0x04, - 0xfe, 0xbc, 0x93, 0x3a, 0x0b, 0x0e, 0x02, 0x8b, 0x0f, 0xfe, 0x03, 0x80, - 0x04, 0xfe, 0x83, 0x83, - 0x33, 0x0b, 0x77, 0x0e, 0xa8, 0x02, 0xff, 0x66, 0x00, 0x00, + 0xfe, 0x3c, 0x90, 0x04, 0xfe, 0xbc, 0x93, 0x3a, 0x0b, 0x0e, 0x02, 0x8b, + 0x0f, 0xfe, 0x03, 0x80, 0x04, 0xfe, 0x83, 0x83, 0x33, 0x0b, 0x77, 0x0e, + 0xa8, 0x02, 0xff, 0x66, 0x00, 0x00, }; static unsigned short _adv_asc38C1600_size = sizeof(_adv_asc38C1600_buf); /* 0x1673 */ -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 05/22] advansys: Shrink advansys_board_found a little more 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox ` (3 preceding siblings ...) 2007-09-09 14:56 ` [PATCH 04/22] advansys: Reformat microcode Matthew Wilcox @ 2007-09-09 14:56 ` Matthew Wilcox 2007-09-09 14:56 ` [PATCH 06/22] advansys: Remove `waiting' queue Matthew Wilcox ` (17 subsequent siblings) 22 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 14:56 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox Move the error reporting into AscInitGetConfig, AdvInitGetConfig and AscInitSetConfig. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 230 +++++++++++++++++++++++------------------------ 1 files changed, 112 insertions(+), 118 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 5649bf4..fe289b1 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -9321,13 +9321,14 @@ static uchar __devinit AscGetIsaDmaSpeed(PortAddr iop_base) } #endif /* CONFIG_ISA */ -static ushort __devinit AscInitGetConfig(ASC_DVC_VAR *asc_dvc) +static int __devinit AscInitGetConfig(asc_board_t *boardp) { + ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; unsigned short warn_code = 0; asc_dvc->init_state = ASC_INIT_STATE_BEG_GET_CFG; if (asc_dvc->err_code != 0) - return (UW_ERR); + return asc_dvc->err_code; if (AscFindSignature(asc_dvc->iop_base)) { warn_code |= AscInitAscDvcVar(asc_dvc); @@ -9338,27 +9339,63 @@ static ushort __devinit AscInitGetConfig(ASC_DVC_VAR *asc_dvc) } else { asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; } - return warn_code; + + switch (warn_code) { + case 0: /* No error */ + break; + case ASC_WARN_IO_PORT_ROTATE: + ASC_PRINT1("AscInitGetConfig: board %d: I/O port address " + "modified\n", boardp->id); + break; + case ASC_WARN_AUTO_CONFIG: + ASC_PRINT1("AscInitGetConfig: board %d: I/O port increment " + "switch enabled\n", boardp->id); + break; + case ASC_WARN_EEPROM_CHKSUM: + ASC_PRINT1("AscInitGetConfig: board %d: EEPROM checksum " + "error\n", boardp->id); + break; + case ASC_WARN_IRQ_MODIFIED: + ASC_PRINT1("AscInitGetConfig: board %d: IRQ modified\n", + boardp->id); + break; + case ASC_WARN_CMD_QNG_CONFLICT: + ASC_PRINT1("AscInitGetConfig: board %d: tag queuing enabled " + "w/o disconnects\n", boardp->id); + break; + default: + ASC_PRINT2("AscInitGetConfig: board %d: unknown warning: " + "0x%x\n", boardp->id, warn_code); + break; + } + + if (asc_dvc->err_code != 0) { + ASC_PRINT3("AscInitGetConfig: board %d error: init_state 0x%x, " + "err_code 0x%x\n", boardp->id, asc_dvc->init_state, + asc_dvc->err_code); + } + + return asc_dvc->err_code; } -static unsigned short __devinit -AscInitSetConfig(struct pci_dev *pdev, ASC_DVC_VAR *asc_dvc) +static int __devinit AscInitSetConfig(struct pci_dev *pdev, asc_board_t *boardp) { + ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; PortAddr iop_base = asc_dvc->iop_base; unsigned short cfg_msw; unsigned short warn_code = 0; asc_dvc->init_state |= ASC_INIT_STATE_BEG_SET_CFG; if (asc_dvc->err_code != 0) - return UW_ERR; + return asc_dvc->err_code; if (!AscFindSignature(asc_dvc->iop_base)) { asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; - return 0; + return asc_dvc->err_code; } cfg_msw = AscGetChipCfgMsw(iop_base); if ((cfg_msw & ASC_CFG_MSW_CLR_MASK) != 0) { - cfg_msw &= (~(ASC_CFG_MSW_CLR_MASK)); + cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; warn_code |= ASC_WARN_CFG_MSW_RECOVER; AscSetChipCfgMsw(iop_base, cfg_msw); } @@ -9409,7 +9446,44 @@ AscInitSetConfig(struct pci_dev *pdev, ASC_DVC_VAR *asc_dvc) #endif /* CONFIG_ISA */ asc_dvc->init_state |= ASC_INIT_STATE_END_SET_CFG; - return warn_code; + + switch (warn_code) { + case 0: /* No error. */ + break; + case ASC_WARN_IO_PORT_ROTATE: + ASC_PRINT1("AscInitSetConfig: board %d: I/O port address " + "modified\n", boardp->id); + break; + case ASC_WARN_AUTO_CONFIG: + ASC_PRINT1("AscInitSetConfig: board %d: I/O port increment " + "switch enabled\n", boardp->id); + break; + case ASC_WARN_EEPROM_CHKSUM: + ASC_PRINT1("AscInitSetConfig: board %d: EEPROM checksum " + "error\n", boardp->id); + break; + case ASC_WARN_IRQ_MODIFIED: + ASC_PRINT1("AscInitSetConfig: board %d: IRQ modified\n", + boardp->id); + break; + case ASC_WARN_CMD_QNG_CONFLICT: + ASC_PRINT1("AscInitSetConfig: board %d: tag queuing w/o " + "disconnects\n", + boardp->id); + break; + default: + ASC_PRINT2("AscInitSetConfig: board %d: unknown warning: " + "0x%x\n", boardp->id, warn_code); + break; + } + + if (asc_dvc->err_code != 0) { + ASC_PRINT3("AscInitSetConfig: board %d error: init_state 0x%x, " + "err_code 0x%x\n", boardp->id, asc_dvc->init_state, + asc_dvc->err_code); + } + + return asc_dvc->err_code; } static ushort AscInitAsc1000Driver(ASC_DVC_VAR *asc_dvc) @@ -9596,7 +9670,7 @@ static ushort __devinit AscInitFromEEP(ASC_DVC_VAR *asc_dvc) cfg_msw = AscGetChipCfgMsw(iop_base); cfg_lsw = AscGetChipCfgLsw(iop_base); if ((cfg_msw & ASC_CFG_MSW_CLR_MASK) != 0) { - cfg_msw &= (~(ASC_CFG_MSW_CLR_MASK)); + cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; warn_code |= ASC_WARN_CFG_MSW_RECOVER; AscSetChipCfgMsw(iop_base, cfg_msw); } @@ -12009,6 +12083,7 @@ static ADVEEP_38C1600_CONFIG ADVEEP_38C1600_Config_Field_IsChar __devinitdata = 0 /* 63 reserved */ }; +#ifdef CONFIG_PCI /* * Initialize the ADV_DVC_VAR structure. * @@ -12018,8 +12093,9 @@ static ADVEEP_38C1600_CONFIG ADVEEP_38C1600_Config_Field_IsChar __devinitdata = * then 0 is returned. */ static int __devinit -AdvInitGetConfig(struct pci_dev *pdev, ADV_DVC_VAR *asc_dvc) +AdvInitGetConfig(struct pci_dev *pdev, asc_board_t *boardp) { + ADV_DVC_VAR *asc_dvc = &boardp->dvc_var.adv_dvc_var; unsigned short warn_code = 0; AdvPortAddr iop_base = asc_dvc->iop_base; u16 cmd; @@ -12087,8 +12163,19 @@ AdvInitGetConfig(struct pci_dev *pdev, ADV_DVC_VAR *asc_dvc) warn_code |= status; } - return warn_code; + if (warn_code != 0) { + ASC_PRINT2("AdvInitGetConfig: board %d: warning: 0x%x\n", + boardp->id, warn_code); + } + + if (asc_dvc->err_code) { + ASC_PRINT2("AdvInitGetConfig: board %d error: err_code 0x%x\n", + boardp->id, asc_dvc->err_code); + } + + return asc_dvc->err_code; } +#endif static void AdvBuildCarrierFreelist(struct adv_dvc_var *asc_dvc) { @@ -15316,22 +15403,7 @@ advansys_board_found(int iop, struct device *dev, int bus_type) share_irq = 0; break; } - } else { - /* - * For Wide boards set PCI information before calling - * AdvInitGetConfig(). - */ -#ifdef CONFIG_PCI - shost->irq = adv_dvc_varp->irq_no = pdev->irq; - shost->unchecked_isa_dma = FALSE; - share_irq = IRQF_SHARED; -#endif /* CONFIG_PCI */ - } - /* - * Read the board configuration. - */ - if (ASC_NARROW_BOARD(boardp)) { /* * NOTE: AscInitGetConfig() may change the board's * bus_type value. The bus_type value should no @@ -15339,60 +15411,20 @@ advansys_board_found(int iop, struct device *dev, int bus_type) * referenced only use the bit-wise AND operator "&". */ ASC_DBG(2, "advansys_board_found: AscInitGetConfig()\n"); - switch (ret = AscInitGetConfig(asc_dvc_varp)) { - case 0: /* No error */ - break; - case ASC_WARN_IO_PORT_ROTATE: - ASC_PRINT1 - ("AscInitGetConfig: board %d: I/O port address modified\n", - boardp->id); - break; - case ASC_WARN_AUTO_CONFIG: - ASC_PRINT1 - ("AscInitGetConfig: board %d: I/O port increment switch enabled\n", - boardp->id); - break; - case ASC_WARN_EEPROM_CHKSUM: - ASC_PRINT1 - ("AscInitGetConfig: board %d: EEPROM checksum error\n", - boardp->id); - break; - case ASC_WARN_IRQ_MODIFIED: - ASC_PRINT1 - ("AscInitGetConfig: board %d: IRQ modified\n", - boardp->id); - break; - case ASC_WARN_CMD_QNG_CONFLICT: - ASC_PRINT1 - ("AscInitGetConfig: board %d: tag queuing enabled w/o disconnects\n", - boardp->id); - break; - default: - ASC_PRINT2 - ("AscInitGetConfig: board %d: unknown warning: 0x%x\n", - boardp->id, ret); - break; - } - if ((err_code = asc_dvc_varp->err_code) != 0) { - ASC_PRINT3 - ("AscInitGetConfig: board %d error: init_state 0x%x, err_code 0x%x\n", - boardp->id, - asc_dvc_varp->init_state, asc_dvc_varp->err_code); - } + err_code = AscInitGetConfig(boardp); } else { +#ifdef CONFIG_PCI + /* + * For Wide boards set PCI information before calling + * AdvInitGetConfig(). + */ + shost->irq = adv_dvc_varp->irq_no = pdev->irq; + shost->unchecked_isa_dma = FALSE; + share_irq = IRQF_SHARED; ASC_DBG(2, "advansys_board_found: AdvInitGetConfig()\n"); - ret = AdvInitGetConfig(pdev, adv_dvc_varp); - if (ret != 0) { - ASC_PRINT2 - ("AdvInitGetConfig: board %d: warning: 0x%x\n", - boardp->id, ret); - } - if ((err_code = adv_dvc_varp->err_code) != 0) { - ASC_PRINT2 - ("AdvInitGetConfig: board %d error: err_code 0x%x\n", - boardp->id, adv_dvc_varp->err_code); - } + err_code = AdvInitGetConfig(pdev, boardp); +#endif /* CONFIG_PCI */ } if (err_code != 0) @@ -15439,47 +15471,9 @@ advansys_board_found(int iop, struct device *dev, int bus_type) * Modify board configuration. */ ASC_DBG(2, "advansys_board_found: AscInitSetConfig()\n"); - switch (ret = AscInitSetConfig(pdev, asc_dvc_varp)) { - case 0: /* No error. */ - break; - case ASC_WARN_IO_PORT_ROTATE: - ASC_PRINT1 - ("AscInitSetConfig: board %d: I/O port address modified\n", - boardp->id); - break; - case ASC_WARN_AUTO_CONFIG: - ASC_PRINT1 - ("AscInitSetConfig: board %d: I/O port increment switch enabled\n", - boardp->id); - break; - case ASC_WARN_EEPROM_CHKSUM: - ASC_PRINT1 - ("AscInitSetConfig: board %d: EEPROM checksum error\n", - boardp->id); - break; - case ASC_WARN_IRQ_MODIFIED: - ASC_PRINT1 - ("AscInitSetConfig: board %d: IRQ modified\n", - boardp->id); - break; - case ASC_WARN_CMD_QNG_CONFLICT: - ASC_PRINT1 - ("AscInitSetConfig: board %d: tag queuing w/o disconnects\n", - boardp->id); - break; - default: - ASC_PRINT2 - ("AscInitSetConfig: board %d: unknown warning: 0x%x\n", - boardp->id, ret); - break; - } - if (asc_dvc_varp->err_code != 0) { - ASC_PRINT3 - ("AscInitSetConfig: board %d error: init_state 0x%x, err_code 0x%x\n", - boardp->id, - asc_dvc_varp->init_state, asc_dvc_varp->err_code); + err_code = AscInitSetConfig(pdev, boardp); + if (err_code) goto err_free_proc; - } /* * Finish initializing the 'Scsi_Host' structure. -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 06/22] advansys: Remove `waiting' queue 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox ` (4 preceding siblings ...) 2007-09-09 14:56 ` [PATCH 05/22] advansys: Shrink advansys_board_found a little more Matthew Wilcox @ 2007-09-09 14:56 ` Matthew Wilcox 2007-09-09 14:56 ` [PATCH 07/22] advansys: Remove a check for an impossible condition Matthew Wilcox ` (16 subsequent siblings) 22 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 14:56 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox If the adapter is busy, return the request to the midlayer rather than queueing it in the driver. asc_execute_queue() and asc_dequeue() become unused, and we don't need to print out stats on the waiting queue any more. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 186 ++-------------------------------------------- 1 files changed, 9 insertions(+), 177 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index fe289b1..526239a 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -2852,7 +2852,6 @@ typedef struct asc_board { } dvc_cfg; ushort asc_n_io_port; /* Number I/O ports. */ asc_queue_t active; /* Active command queue */ - asc_queue_t waiting; /* Waiting command queue */ asc_queue_t done; /* Done command queue */ ADV_SCSI_BIT_ID_TYPE init_tidmask; /* Target init./valid mask */ struct scsi_device *device[ADV_MAX_TID + 1]; /* Mid-Level Scsi Device */ @@ -2922,10 +2921,8 @@ static int asc_build_req(asc_board_t *, struct scsi_cmnd *); static int adv_build_req(asc_board_t *, struct scsi_cmnd *, ADV_SCSI_REQ_Q **); static int adv_get_sglist(asc_board_t *, adv_req_t *, struct scsi_cmnd *, int); static void asc_enqueue(asc_queue_t *, REQP, int); -static REQP asc_dequeue(asc_queue_t *, int); static REQP asc_dequeue_list(asc_queue_t *, REQP *, int); static int asc_rmqueue(asc_queue_t *, REQP); -static void asc_execute_queue(asc_queue_t *); #ifdef CONFIG_PROC_FS static int asc_proc_copy(off_t, off_t, char *, int, char *, int); static int asc_prt_board_devices(struct Scsi_Host *, char *, int); @@ -3274,6 +3271,7 @@ advansys_queuecommand(struct scsi_cmnd *scp, void (*done) (struct scsi_cmnd *)) asc_board_t *boardp; ulong flags; struct scsi_cmnd *done_scp; + int asc_res, result = 0; shost = scp->device->host; boardp = ASC_BOARDP(shost); @@ -3302,37 +3300,13 @@ advansys_queuecommand(struct scsi_cmnd *scp, void (*done) (struct scsi_cmnd *)) return 0; } - /* - * Attempt to execute any waiting commands for the board. - */ - if (!ASC_QUEUE_EMPTY(&boardp->waiting)) { - ASC_DBG(1, - "advansys_queuecommand: before asc_execute_queue() waiting\n"); - asc_execute_queue(&boardp->waiting); - } - - /* - * Save the function pointer to Linux mid-level 'done' function - * and attempt to execute the command. - * - * If ASC_NOERROR is returned the request has been added to the - * board's 'active' queue and will be completed by the interrupt - * handler. - * - * If ASC_BUSY is returned add the request to the board's per - * target waiting list. This is the first time the request has - * been tried. Add it to the back of the waiting list. It will be - * retried later. - * - * If an error occurred, the request will have been placed on the - * board's 'done' queue and must be completed before returning. - */ scp->scsi_done = done; - switch (asc_execute_scsi_cmnd(scp)) { + asc_res = asc_execute_scsi_cmnd(scp); + switch (asc_res) { case ASC_NOERROR: break; case ASC_BUSY: - asc_enqueue(&boardp->waiting, scp, ASC_BACK); + result = SCSI_MLQUEUE_HOST_BUSY; break; case ASC_ERROR: default: @@ -3343,7 +3317,7 @@ advansys_queuecommand(struct scsi_cmnd *scp, void (*done) (struct scsi_cmnd *)) } spin_unlock_irqrestore(&boardp->lock, flags); - return 0; + return result; } /* @@ -3488,33 +3462,6 @@ static int advansys_reset(struct scsi_cmnd *scp) } } - /* - * Dequeue all 'waiting' requests and set the request status - * to DID_RESET. - */ - if (done_scp == NULL) { - done_scp = asc_dequeue_list(&boardp->waiting, &last_scp, - ASC_TID_ALL); - for (tscp = done_scp; tscp; tscp = REQPNEXT(tscp)) { - tscp->result = HOST_BYTE(DID_RESET); - } - } else { - /* Append to 'done_scp' at the end with 'last_scp'. */ - ASC_ASSERT(last_scp != NULL); - last_scp->host_scribble = - (unsigned char *)asc_dequeue_list(&boardp->waiting, - &new_last_scp, - ASC_TID_ALL); - if (new_last_scp != NULL) { - ASC_ASSERT(REQPNEXT(last_scp) != NULL); - for (tscp = REQPNEXT(last_scp); tscp; - tscp = REQPNEXT(tscp)) { - tscp->result = HOST_BYTE(DID_RESET); - } - last_scp = new_last_scp; - } - } - /* Save the time of the most recently completed reset. */ boardp->last_reset = jiffies; @@ -3650,7 +3597,7 @@ static irqreturn_t advansys_interrupt(int irq, void *dev_id) } /* - * Start waiting requests and create a list of completed requests. + * Create a list of completed requests. * * If a reset request is being performed for the board, the reset * handler will complete pending requests after it has completed. @@ -3659,13 +3606,6 @@ static irqreturn_t advansys_interrupt(int irq, void *dev_id) ASC_DBG2(1, "advansys_interrupt: done_scp 0x%p, " "last_scp 0x%p\n", done_scp, last_scp); - /* Start any waiting commands for the board. */ - if (!ASC_QUEUE_EMPTY(&boardp->waiting)) { - ASC_DBG(1, "advansys_interrupt: before " - "asc_execute_queue()\n"); - asc_execute_queue(&boardp->waiting); - } - /* * Add to the list of requests that must be completed. * @@ -3986,8 +3926,8 @@ static void asc_scsi_done_list(struct scsi_cmnd *scp) * If this function returns ASC_NOERROR the request has been enqueued * on the board's 'done' queue and must be completed by the caller. * - * If ASC_BUSY is returned the request will be enqueued by the - * caller on the target's waiting queue and re-tried later. + * If ASC_BUSY is returned the request will be returned to the midlayer + * and re-tried later. */ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) { @@ -4043,10 +3983,6 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) "ASC_NOERROR\n"); break; case ASC_BUSY: - /* - * Caller will enqueue request on the target's waiting - * queue and retry later. - */ ASC_STATS(scp->device->host, exe_busy); break; case ASC_ERROR: @@ -4087,10 +4023,6 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) ASC_DBG(1, "asc_execute_scsi_cmnd: adv_build_req " "ASC_BUSY\n"); /* - * If busy is returned the request has not been - * enqueued. It will be enqueued by the caller on the - * target's waiting queue and retried later. - * * The asc_stats fields 'adv_build_noreq' and * 'adv_build_nosg' count wide board busy conditions. * They are updated in adv_build_req and @@ -4127,10 +4059,6 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) "ASC_NOERROR\n"); break; case ASC_BUSY: - /* - * Caller will enqueue request on the target's waiting - * queue and retry later. - */ ASC_STATS(scp->device->host, exe_busy); break; case ASC_ERROR: @@ -5005,39 +4933,6 @@ static void asc_enqueue(asc_queue_t *ascq, REQP reqp, int flag) } /* - * Return first queued 'REQP' on the specified queue for - * the specified target device. Clear the 'tidmask' bit for - * the device if no more commands are left queued for it. - * - * 'REQPNEXT(reqp)' returns reqp's next pointer. - */ -static REQP asc_dequeue(asc_queue_t *ascq, int tid) -{ - REQP reqp; - - ASC_DBG2(3, "asc_dequeue: ascq 0x%lx, tid %d\n", (ulong)ascq, tid); - ASC_ASSERT(tid >= 0 && tid <= ADV_MAX_TID); - if ((reqp = ascq->q_first[tid]) != NULL) { - ASC_ASSERT(ascq->q_tidmask & ADV_TID_TO_TIDMASK(tid)); - ascq->q_first[tid] = REQPNEXT(reqp); - /* If the queue is empty, clear its bit and the last pointer. */ - if (ascq->q_first[tid] == NULL) { - ascq->q_tidmask &= ~ADV_TID_TO_TIDMASK(tid); - ASC_ASSERT(ascq->q_last[tid] == reqp); - ascq->q_last[tid] = NULL; - } -#ifdef ADVANSYS_STATS - /* Maintain request queue statistics. */ - ascq->q_cur_cnt[tid]--; - ASC_ASSERT(ascq->q_cur_cnt[tid] >= 0); - REQTIMESTAT("asc_dequeue", ascq, reqp, tid); -#endif /* ADVANSYS_STATS */ - } - ASC_DBG1(3, "asc_dequeue: reqp 0x%lx\n", (ulong)reqp); - return reqp; -} - -/* * Return a pointer to a singly linked list of all the requests queued * for 'tid' on the 'asc_queue_t' pointed to by 'ascq'. * @@ -5202,45 +5097,6 @@ static int asc_rmqueue(asc_queue_t *ascq, REQP reqp) return ret; } -/* - * Execute as many queued requests as possible for the specified queue. - * - * Calls asc_execute_scsi_cmnd() to execute a REQP/struct scsi_cmnd. - */ -static void asc_execute_queue(asc_queue_t *ascq) -{ - ADV_SCSI_BIT_ID_TYPE scan_tidmask; - REQP reqp; - int i; - - ASC_DBG1(1, "asc_execute_queue: ascq 0x%lx\n", (ulong)ascq); - /* - * Execute queued commands for devices attached to - * the current board in round-robin fashion. - */ - scan_tidmask = ascq->q_tidmask; - do { - for (i = 0; i <= ADV_MAX_TID; i++) { - if (scan_tidmask & ADV_TID_TO_TIDMASK(i)) { - if ((reqp = asc_dequeue(ascq, i)) == NULL) { - scan_tidmask &= ~ADV_TID_TO_TIDMASK(i); - } else - if (asc_execute_scsi_cmnd - ((struct scsi_cmnd *)reqp) - == ASC_BUSY) { - scan_tidmask &= ~ADV_TID_TO_TIDMASK(i); - /* - * The request returned ASC_BUSY. Enqueue at the front of - * target's waiting list to maintain correct ordering. - */ - asc_enqueue(ascq, reqp, ASC_FRONT); - } - } - } - } while (scan_tidmask); - return; -} - #ifdef CONFIG_PROC_FS /* * asc_prt_board_devices() @@ -6723,7 +6579,6 @@ asc_prt_target_stats(struct Scsi_Host *shost, int tgt_id, char *cp, int cplen) ushort chip_scsi_id; asc_board_t *boardp; asc_queue_t *active; - asc_queue_t *waiting; leftlen = cplen; totlen = len = 0; @@ -6732,7 +6587,6 @@ asc_prt_target_stats(struct Scsi_Host *shost, int tgt_id, char *cp, int cplen) s = &boardp->asc_stats; active = &ASC_BOARDP(shost)->active; - waiting = &ASC_BOARDP(shost)->waiting; if (ASC_NARROW_BOARD(boardp)) { chip_scsi_id = boardp->dvc_cfg.asc_dvc_cfg.chip_scsi_id; @@ -6746,8 +6600,7 @@ asc_prt_target_stats(struct Scsi_Host *shost, int tgt_id, char *cp, int cplen) } do { - if (active->q_tot_cnt[tgt_id] > 0 - || waiting->q_tot_cnt[tgt_id] > 0) { + if (active->q_tot_cnt[tgt_id] > 0) { len = asc_prt_line(cp, leftlen, " target %d\n", tgt_id); ASC_PRT_NEXT(); @@ -6771,27 +6624,6 @@ asc_prt_target_stats(struct Scsi_Host *shost, int tgt_id, char *cp, int cplen) q_tot_cnt [tgt_id])); ASC_PRT_NEXT(); - - len = asc_prt_line(cp, leftlen, - " waiting: cnt [cur %d, max %d, tot %u], time [min %u, max %u, avg %lu.%01lu]\n", - waiting->q_cur_cnt[tgt_id], - waiting->q_max_cnt[tgt_id], - waiting->q_tot_cnt[tgt_id], - waiting->q_min_tim[tgt_id], - waiting->q_max_tim[tgt_id], - (waiting->q_tot_cnt[tgt_id] == - 0) ? 0 : (waiting-> - q_tot_tim[tgt_id] / - waiting-> - q_tot_cnt[tgt_id]), - (waiting->q_tot_cnt[tgt_id] == - 0) ? 0 : ASC_TENTHS(waiting-> - q_tot_tim - [tgt_id], - waiting-> - q_tot_cnt - [tgt_id])); - ASC_PRT_NEXT(); } } while (0); -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 07/22] advansys: Remove a check for an impossible condition 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox ` (5 preceding siblings ...) 2007-09-09 14:56 ` [PATCH 06/22] advansys: Remove `waiting' queue Matthew Wilcox @ 2007-09-09 14:56 ` Matthew Wilcox 2007-09-09 14:56 ` [PATCH 08/22] advansys: Remove `done' queue Matthew Wilcox ` (15 subsequent siblings) 22 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 14:56 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox The midlayer guarantees it won't call ->queuecommand for a host which is handling a reset condition. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 19 ------------------- 1 files changed, 0 insertions(+), 19 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 526239a..cd17f28 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -3281,25 +3281,6 @@ advansys_queuecommand(struct scsi_cmnd *scp, void (*done) (struct scsi_cmnd *)) /* against own ISR */ spin_lock_irqsave(&boardp->lock, flags); - /* - * Block new commands while handling a reset or abort request. - */ - if (boardp->flags & ASC_HOST_IN_RESET) { - ASC_DBG1(1, - "advansys_queuecommand: scp 0x%lx blocked for reset request\n", - (ulong)scp); - scp->result = HOST_BYTE(DID_RESET); - - /* - * Add blocked requests to the board's 'done' queue. The queued - * requests will be completed at the end of the abort or reset - * handling. - */ - asc_enqueue(&boardp->done, scp, ASC_BACK); - spin_unlock_irqrestore(&boardp->lock, flags); - return 0; - } - scp->scsi_done = done; asc_res = asc_execute_scsi_cmnd(scp); switch (asc_res) { -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 08/22] advansys: Remove `done' queue 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox ` (6 preceding siblings ...) 2007-09-09 14:56 ` [PATCH 07/22] advansys: Remove a check for an impossible condition Matthew Wilcox @ 2007-09-09 14:56 ` Matthew Wilcox 2007-09-09 14:56 ` [PATCH 09/22] advansys: Remove `active' queue and all remaining internal queueing code Matthew Wilcox ` (14 subsequent siblings) 22 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 14:56 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox - Move the guts of asc_scsi_done_list() into a new function, asc_scsi_done. - Call asc_scsi_done() in asc_isr_callback() and adv_isr_callback(). The comment was wrong; scsi_done cannot enable interrupts. - All other places which queued an scp on the done list are error paths for queuecommand, and so we can just call asc_scsi_done() in queuecommand if we receive an error. - We no longer need to keep a list of done requests in advansys_interrupt Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 120 +++++++++------------------------------------- 1 files changed, 24 insertions(+), 96 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index cd17f28..90f05c5 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -2852,7 +2852,6 @@ typedef struct asc_board { } dvc_cfg; ushort asc_n_io_port; /* Number I/O ports. */ asc_queue_t active; /* Active command queue */ - asc_queue_t done; /* Done command queue */ ADV_SCSI_BIT_ID_TYPE init_tidmask; /* Target init./valid mask */ struct scsi_device *device[ADV_MAX_TID + 1]; /* Mid-Level Scsi Device */ ushort reqcnt[ADV_MAX_TID + 1]; /* Starvation request count */ @@ -3258,6 +3257,23 @@ static const char *advansys_info(struct Scsi_Host *shost) return info; } +static void asc_scsi_done(struct scsi_cmnd *scp) +{ + struct asc_board *boardp = ASC_BOARDP(scp->device->host); + + if (scp->use_sg) + dma_unmap_sg(boardp->dev, + (struct scatterlist *)scp->request_buffer, + scp->use_sg, scp->sc_data_direction); + else if (scp->request_bufflen) + dma_unmap_single(boardp->dev, scp->SCp.dma_handle, + scp->request_bufflen, scp->sc_data_direction); + + ASC_STATS(scp->device->host, done); + + scp->scsi_done(scp); +} + /* * advansys_queuecommand() - interrupt-driven I/O entrypoint. * @@ -3270,7 +3286,6 @@ advansys_queuecommand(struct scsi_cmnd *scp, void (*done) (struct scsi_cmnd *)) struct Scsi_Host *shost; asc_board_t *boardp; ulong flags; - struct scsi_cmnd *done_scp; int asc_res, result = 0; shost = scp->device->host; @@ -3291,9 +3306,8 @@ advansys_queuecommand(struct scsi_cmnd *scp, void (*done) (struct scsi_cmnd *)) break; case ASC_ERROR: default: - done_scp = asc_dequeue_list(&boardp->done, NULL, ASC_TID_ALL); /* Interrupts could be enabled here. */ - asc_scsi_done_list(done_scp); + asc_scsi_done(scp); break; } spin_unlock_irqrestore(&boardp->lock, flags); @@ -3410,12 +3424,6 @@ static int advansys_reset(struct scsi_cmnd *scp) /* Board lock is held. */ /* - * Dequeue all board 'done' requests. A pointer to the last request - * is returned in 'last_scp'. - */ - done_scp = asc_dequeue_list(&boardp->done, &last_scp, ASC_TID_ALL); - - /* * Dequeue all board 'active' requests for all devices and set * the request status to DID_RESET. A pointer to the last request * is returned in 'last_scp'. @@ -3548,8 +3556,6 @@ static struct scsi_host_template advansys_template = { static irqreturn_t advansys_interrupt(int irq, void *dev_id) { unsigned long flags; - struct scsi_cmnd *done_scp = NULL, *last_scp = NULL; - struct scsi_cmnd *new_last_scp; struct Scsi_Host *shost = dev_id; asc_board_t *boardp = ASC_BOARDP(shost); irqreturn_t result = IRQ_NONE; @@ -3577,49 +3583,13 @@ static irqreturn_t advansys_interrupt(int irq, void *dev_id) } } - /* - * Create a list of completed requests. - * - * If a reset request is being performed for the board, the reset - * handler will complete pending requests after it has completed. - */ - if ((boardp->flags & ASC_HOST_IN_RESET) == 0) { - ASC_DBG2(1, "advansys_interrupt: done_scp 0x%p, " - "last_scp 0x%p\n", done_scp, last_scp); - - /* - * Add to the list of requests that must be completed. - * - * 'done_scp' will always be NULL on the first iteration of - * this loop. 'last_scp' is set at the same time as 'done_scp'. - */ - if (done_scp == NULL) { - done_scp = asc_dequeue_list(&boardp->done, - &last_scp, ASC_TID_ALL); - } else { - ASC_ASSERT(last_scp != NULL); - last_scp->host_scribble = - (unsigned char *)asc_dequeue_list(&boardp-> - done, - &new_last_scp, - ASC_TID_ALL); - if (new_last_scp != NULL) { - ASC_ASSERT(REQPNEXT(last_scp) != NULL); - last_scp = new_last_scp; - } - } - } spin_unlock_irqrestore(&boardp->lock, flags); /* * If interrupts were enabled on entry, then they * are now enabled here. - * - * Complete all requests on the done list. */ - asc_scsi_done_list(done_scp); - ASC_DBG(1, "advansys_interrupt: end\n"); return result; } @@ -3836,27 +3806,11 @@ static void asc_scsi_done_list(struct scsi_cmnd *scp) ASC_DBG(2, "asc_scsi_done_list: begin\n"); while (scp != NULL) { - asc_board_t *boardp; - ASC_DBG1(3, "asc_scsi_done_list: scp 0x%lx\n", (ulong)scp); tscp = REQPNEXT(scp); scp->host_scribble = NULL; - boardp = ASC_BOARDP(scp->device->host); - - if (scp->use_sg) - dma_unmap_sg(boardp->dev, - (struct scatterlist *)scp->request_buffer, - scp->use_sg, scp->sc_data_direction); - else if (scp->request_bufflen) - dma_unmap_single(boardp->dev, scp->SCp.dma_handle, - scp->request_bufflen, - scp->sc_data_direction); - - ASC_STATS(scp->device->host, done); - ASC_ASSERT(scp->scsi_done != NULL); - - scp->scsi_done(scp); + asc_scsi_done(scp); scp = tscp; } @@ -3904,8 +3858,8 @@ static void asc_scsi_done_list(struct scsi_cmnd *scp) * on the board's 'active' queue and will be completed from the * interrupt handler. * - * If this function returns ASC_NOERROR the request has been enqueued - * on the board's 'done' queue and must be completed by the caller. + * If this function returns ASC_ERROR the host error code has been set, + * and the called must call asc_scsi_done. * * If ASC_BUSY is returned the request will be returned to the midlayer * and re-tried later. @@ -3972,7 +3926,6 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) boardp->id, asc_dvc_varp->err_code); ASC_STATS(scp->device->host, exe_error); scp->result = HOST_BYTE(DID_ERROR); - asc_enqueue(&boardp->done, scp, ASC_BACK); break; default: ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " @@ -3980,7 +3933,6 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) boardp->id, asc_dvc_varp->err_code); ASC_STATS(scp->device->host, exe_unknown); scp->result = HOST_BYTE(DID_ERROR); - asc_enqueue(&boardp->done, scp, ASC_BACK); break; } } else { @@ -4011,11 +3963,6 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) */ return ASC_BUSY; case ASC_ERROR: - /* - * If an error is returned, then the request has been - * queued on the board done queue. It will be completed - * by the caller. - */ default: ASC_DBG(1, "asc_execute_scsi_cmnd: adv_build_req " "ASC_ERROR\n"); @@ -4048,7 +3995,6 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) boardp->id, adv_dvc_varp->err_code); ASC_STATS(scp->device->host, exe_error); scp->result = HOST_BYTE(DID_ERROR); - asc_enqueue(&boardp->done, scp, ASC_BACK); break; default: ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " @@ -4056,7 +4002,6 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) boardp->id, adv_dvc_varp->err_code); ASC_STATS(scp->device->host, exe_unknown); scp->result = HOST_BYTE(DID_ERROR); - asc_enqueue(&boardp->done, scp, ASC_BACK); break; } } @@ -4071,8 +4016,7 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) * The global structures 'asc_scsi_q' and 'asc_sg_head' are * used to build the request. * - * If an error occurs, then queue the request on the board done - * queue and return ASC_ERROR. + * If an error occurs, then return ASC_ERROR. */ static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp) { @@ -4098,7 +4042,6 @@ static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp) "ASC_MAX_CDB_LEN %d\n", boardp->id, scp->cmd_len, ASC_MAX_CDB_LEN); scp->result = HOST_BYTE(DID_ERROR); - asc_enqueue(&boardp->done, scp, ASC_BACK); return ASC_ERROR; } asc_scsi_q.cdbptr = &scp->cmnd[0]; @@ -4167,7 +4110,6 @@ static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp) dma_unmap_sg(boardp->dev, slp, scp->use_sg, scp->sc_data_direction); scp->result = HOST_BYTE(DID_ERROR); - asc_enqueue(&boardp->done, scp, ASC_BACK); return ASC_ERROR; } @@ -4274,7 +4216,6 @@ adv_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, ("adv_build_req: board %d: cmd_len %d > ADV_MAX_CDB_LEN %d\n", boardp->id, scp->cmd_len, ADV_MAX_CDB_LEN); scp->result = HOST_BYTE(DID_ERROR); - asc_enqueue(&boardp->done, scp, ASC_BACK); return ASC_ERROR; } scsiqp->cdb_len = scp->cmd_len; @@ -4342,7 +4283,6 @@ adv_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, dma_unmap_sg(boardp->dev, slp, scp->use_sg, scp->sc_data_direction); scp->result = HOST_BYTE(DID_ERROR); - asc_enqueue(&boardp->done, scp, ASC_BACK); /* * Free the 'adv_req_t' structure by adding it back @@ -4628,13 +4568,7 @@ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) boardp->init_tidmask |= ADV_TID_TO_TIDMASK(scp->device->id); } - /* - * Because interrupts may be enabled by the 'struct scsi_cmnd' done - * function, add the command to the end of the board's done queue. - * The done function for the command will be called from - * advansys_interrupt(). - */ - asc_enqueue(&boardp->done, scp, ASC_BACK); + asc_scsi_done(scp); return; } @@ -4790,13 +4724,7 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) boardp->init_tidmask |= ADV_TID_TO_TIDMASK(scp->device->id); } - /* - * Because interrupts may be enabled by the 'struct scsi_cmnd' done - * function, add the command to the end of the board's done queue. - * The done function for the command will be called from - * advansys_interrupt(). - */ - asc_enqueue(&boardp->done, scp, ASC_BACK); + asc_scsi_done(scp); /* * Free all 'adv_sgblk_t' structures allocated for the request. -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 09/22] advansys: Remove `active' queue and all remaining internal queueing code 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox ` (7 preceding siblings ...) 2007-09-09 14:56 ` [PATCH 08/22] advansys: Remove `done' queue Matthew Wilcox @ 2007-09-09 14:56 ` Matthew Wilcox 2007-09-09 14:56 ` [PATCH 10/22] advansys: Enable interrupts earlier in queuecommand Matthew Wilcox ` (13 subsequent siblings) 22 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 14:56 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox The `active' list was used in the reset handler -- but the midlayer guarantees that list is empty by the time the reset handler is invoked. It was also checked in the interrupt routines to be sure that this command belonged to this board, but we don't need to check that either. We can then delete the asc_prt_target_stats() function as it will never print anything, along with asc_enqueue(), asc_dequeue_list(), asc_rmqueue(), asc_scsi_done_list(), struct asc_queue, ASC_QUEUE_EMPTY, ASC_TID_ALL, ASC_FRONT, ASC_BACK, and all the REQ* macros. Also remove this item from the todo list. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 504 +---------------------------------------------- 1 files changed, 6 insertions(+), 498 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 90f05c5..67cdfe6 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -63,11 +63,10 @@ * has not occurred then print a message and run in polled mode. * 4. Need to add support for target mode commands, cf. CAM XPT. * 5. check DMA mapping functions for failure - * 6. Remove internal queueing - * 7. Use scsi_transport_spi - * 8. advansys_info is not safe against multiple simultaneous callers - * 9. Kill boardp->id - * 10. Add module_param to override ISA/VLB ioport array + * 6. Use scsi_transport_spi + * 7. advansys_info is not safe against multiple simultaneous callers + * 8. Kill boardp->id + * 9. Add module_param to override ISA/VLB ioport array */ #warning this driver is still not properly converted to the DMA API @@ -2514,64 +2513,6 @@ do { \ #define HOST_BYTE(byte) ((byte) << 16) #define DRIVER_BYTE(byte) ((byte) << 24) -/* - * The following definitions and macros are OS independent interfaces to - * the queue functions: - * REQ - SCSI request structure - * REQP - pointer to SCSI request structure - * REQPTID(reqp) - reqp's target id - * REQPNEXT(reqp) - reqp's next pointer - * REQPNEXTP(reqp) - pointer to reqp's next pointer - * REQPTIME(reqp) - reqp's time stamp value - * REQTIMESTAMP() - system time stamp value - */ -typedef struct scsi_cmnd REQ, *REQP; -#define REQPNEXT(reqp) ((REQP) ((reqp)->host_scribble)) -#define REQPNEXTP(reqp) ((REQP *) &((reqp)->host_scribble)) -#define REQPTID(reqp) ((reqp)->device->id) -#define REQPTIME(reqp) ((reqp)->SCp.this_residual) -#define REQTIMESTAMP() (jiffies) - -#define REQTIMESTAT(function, ascq, reqp, tid) \ -{ \ - /* - * If the request time stamp is less than the system time stamp, then \ - * maybe the system time stamp wrapped. Set the request time to zero.\ - */ \ - if (REQPTIME(reqp) <= REQTIMESTAMP()) { \ - REQPTIME(reqp) = REQTIMESTAMP() - REQPTIME(reqp); \ - } else { \ - /* Indicate an error occurred with the assertion. */ \ - ASC_ASSERT(REQPTIME(reqp) <= REQTIMESTAMP()); \ - REQPTIME(reqp) = 0; \ - } \ - /* Handle first minimum time case without external initialization. */ \ - if (((ascq)->q_tot_cnt[tid] == 1) || \ - (REQPTIME(reqp) < (ascq)->q_min_tim[tid])) { \ - (ascq)->q_min_tim[tid] = REQPTIME(reqp); \ - ASC_DBG3(1, "%s: new q_min_tim[%d] %u\n", \ - (function), (tid), (ascq)->q_min_tim[tid]); \ - } \ - if (REQPTIME(reqp) > (ascq)->q_max_tim[tid]) { \ - (ascq)->q_max_tim[tid] = REQPTIME(reqp); \ - ASC_DBG3(1, "%s: new q_max_tim[%d] %u\n", \ - (function), tid, (ascq)->q_max_tim[tid]); \ - } \ - (ascq)->q_tot_tim[tid] += REQPTIME(reqp); \ - /* Reset the time stamp field. */ \ - REQPTIME(reqp) = 0; \ -} - -/* asc_enqueue() flags */ -#define ASC_FRONT 1 -#define ASC_BACK 2 - -/* asc_dequeue_list() argument */ -#define ASC_TID_ALL (-1) - -/* Return non-zero, if the queue is empty. */ -#define ASC_QUEUE_EMPTY(ascq) ((ascq)->q_tidmask == 0) - #ifndef ADVANSYS_STATS #define ASC_STATS(shost, counter) #define ASC_STATS_ADD(shost, counter, count) @@ -2784,23 +2725,6 @@ struct asc_stats { #endif /* ADVANSYS_STATS */ /* - * Request queuing structure - */ -typedef struct asc_queue { - ADV_SCSI_BIT_ID_TYPE q_tidmask; /* queue mask */ - REQP q_first[ADV_MAX_TID + 1]; /* first queued request */ - REQP q_last[ADV_MAX_TID + 1]; /* last queued request */ -#ifdef ADVANSYS_STATS - short q_cur_cnt[ADV_MAX_TID + 1]; /* current queue count */ - short q_max_cnt[ADV_MAX_TID + 1]; /* maximum queue count */ - ADV_DCNT q_tot_cnt[ADV_MAX_TID + 1]; /* total enqueue count */ - ADV_DCNT q_tot_tim[ADV_MAX_TID + 1]; /* total time queued */ - ushort q_max_tim[ADV_MAX_TID + 1]; /* maximum time queued */ - ushort q_min_tim[ADV_MAX_TID + 1]; /* minimum time queued */ -#endif /* ADVANSYS_STATS */ -} asc_queue_t; - -/* * Adv Library Request Structures * * The following two structures are used to process Wide Board requests. @@ -2851,7 +2775,6 @@ typedef struct asc_board { ADV_DVC_CFG adv_dvc_cfg; /* Wide board */ } dvc_cfg; ushort asc_n_io_port; /* Number I/O ports. */ - asc_queue_t active; /* Active command queue */ ADV_SCSI_BIT_ID_TYPE init_tidmask; /* Target init./valid mask */ struct scsi_device *device[ADV_MAX_TID + 1]; /* Mid-Level Scsi Device */ ushort reqcnt[ADV_MAX_TID + 1]; /* Starvation request count */ @@ -2914,14 +2837,10 @@ static int asc_dbglvl = 3; */ static int advansys_slave_configure(struct scsi_device *); -static void asc_scsi_done_list(struct scsi_cmnd *); static int asc_execute_scsi_cmnd(struct scsi_cmnd *); static int asc_build_req(asc_board_t *, struct scsi_cmnd *); static int adv_build_req(asc_board_t *, struct scsi_cmnd *, ADV_SCSI_REQ_Q **); static int adv_get_sglist(asc_board_t *, adv_req_t *, struct scsi_cmnd *, int); -static void asc_enqueue(asc_queue_t *, REQP, int); -static REQP asc_dequeue_list(asc_queue_t *, REQP *, int); -static int asc_rmqueue(asc_queue_t *, REQP); #ifdef CONFIG_PROC_FS static int asc_proc_copy(off_t, off_t, char *, int, char *, int); static int asc_prt_board_devices(struct Scsi_Host *, char *, int); @@ -2939,7 +2858,6 @@ static int asc_prt_line(char *, int, char *fmt, ...); #ifdef ADVANSYS_STATS #ifdef CONFIG_PROC_FS static int asc_prt_board_stats(struct Scsi_Host *, char *, int); -static int asc_prt_target_stats(struct Scsi_Host *, int, char *, int); #endif /* CONFIG_PROC_FS */ #endif /* ADVANSYS_STATS */ @@ -2991,9 +2909,6 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, int leftlen; char *curbuf; off_t advoffset; -#ifdef ADVANSYS_STATS - int tgt_id; -#endif /* ADVANSYS_STATS */ ASC_DBG(1, "advansys_proc_info: begin\n"); @@ -3123,26 +3038,6 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, } advoffset += cplen; curbuf += cnt; - - /* - * Display driver statistics for each target. - */ - for (tgt_id = 0; tgt_id <= ADV_MAX_TID; tgt_id++) { - cp = boardp->prtbuf; - cplen = asc_prt_target_stats(shost, tgt_id, cp, - ASC_PRTBUF_SIZE); - ASC_ASSERT(cplen <= ASC_PRTBUF_SIZE); - cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, - cplen); - totcnt += cnt; - leftlen -= cnt; - if (leftlen == 0) { - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; - } #endif /* ADVANSYS_STATS */ /* @@ -3331,8 +3226,6 @@ static int advansys_reset(struct scsi_cmnd *scp) ASC_DVC_VAR *asc_dvc_varp; ADV_DVC_VAR *adv_dvc_varp; ulong flags; - struct scsi_cmnd *done_scp = NULL, *last_scp = NULL; - struct scsi_cmnd *tscp, *new_last_scp; int status; int ret = SUCCESS; @@ -3423,34 +3316,6 @@ static int advansys_reset(struct scsi_cmnd *scp) } /* Board lock is held. */ - /* - * Dequeue all board 'active' requests for all devices and set - * the request status to DID_RESET. A pointer to the last request - * is returned in 'last_scp'. - */ - if (done_scp == NULL) { - done_scp = asc_dequeue_list(&boardp->active, &last_scp, - ASC_TID_ALL); - for (tscp = done_scp; tscp; tscp = REQPNEXT(tscp)) { - tscp->result = HOST_BYTE(DID_RESET); - } - } else { - /* Append to 'done_scp' at the end with 'last_scp'. */ - ASC_ASSERT(last_scp != NULL); - last_scp->host_scribble = - (unsigned char *)asc_dequeue_list(&boardp->active, - &new_last_scp, - ASC_TID_ALL); - if (new_last_scp != NULL) { - ASC_ASSERT(REQPNEXT(last_scp) != NULL); - for (tscp = REQPNEXT(last_scp); tscp; - tscp = REQPNEXT(tscp)) { - tscp->result = HOST_BYTE(DID_RESET); - } - last_scp = new_last_scp; - } - } - /* Save the time of the most recently completed reset. */ boardp->last_reset = jiffies; @@ -3458,12 +3323,6 @@ static int advansys_reset(struct scsi_cmnd *scp) boardp->flags &= ~ASC_HOST_IN_RESET; spin_unlock_irqrestore(&boardp->lock, flags); - /* - * Complete all the 'done_scp' requests. - */ - if (done_scp) - asc_scsi_done_list(done_scp); - ASC_DBG1(1, "advansys_reset: ret %d\n", ret); return ret; @@ -3795,30 +3654,6 @@ static int advansys_slave_configure(struct scsi_device *sdev) } /* - * Complete all requests on the singly linked list pointed - * to by 'scp'. - * - * Interrupts can be enabled on entry. - */ -static void asc_scsi_done_list(struct scsi_cmnd *scp) -{ - struct scsi_cmnd *tscp; - - ASC_DBG(2, "asc_scsi_done_list: begin\n"); - while (scp != NULL) { - ASC_DBG1(3, "asc_scsi_done_list: scp 0x%lx\n", (ulong)scp); - tscp = REQPNEXT(scp); - scp->host_scribble = NULL; - - asc_scsi_done(scp); - - scp = tscp; - } - ASC_DBG(2, "asc_scsi_done_list: done\n"); - return; -} - -/* * Execute a single 'Scsi_Cmnd'. * * The function 'done' is called when the request has been completed. @@ -3854,9 +3689,8 @@ static void asc_scsi_done_list(struct scsi_cmnd *scp) * scsi_done - used to save caller's done function * host_scribble - used for pointer to another struct scsi_cmnd * - * If this function returns ASC_NOERROR the request has been enqueued - * on the board's 'active' queue and will be completed from the - * interrupt handler. + * If this function returns ASC_NOERROR the request will be completed + * from the interrupt handler. * * If this function returns ASC_ERROR the host error code has been set, * and the called must call asc_scsi_done. @@ -3901,10 +3735,6 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) return ASC_ERROR; } - /* - * Execute the command. If there is no error, add the command - * to the active queue. - */ switch (ret = AscExeScsiQueue(asc_dvc_varp, &asc_scsi_q)) { case ASC_NOERROR: ASC_STATS(scp->device->host, exe_noerror); @@ -3913,7 +3743,6 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) * successful request counter. Wrapping doesn't matter. */ boardp->reqcnt[scp->device->id]++; - asc_enqueue(&boardp->active, scp, ASC_BACK); ASC_DBG(1, "asc_execute_scsi_cmnd: AscExeScsiQueue(), " "ASC_NOERROR\n"); break; @@ -3970,10 +3799,6 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) return ASC_ERROR; } - /* - * Execute the command. If there is no error, add the command - * to the active queue. - */ switch (ret = AdvExeScsiQueue(adv_dvc_varp, adv_scsiqp)) { case ASC_NOERROR: ASC_STATS(scp->device->host, exe_noerror); @@ -3982,7 +3807,6 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) * successful request counter. Wrapping doesn't matter. */ boardp->reqcnt[scp->device->id]++; - asc_enqueue(&boardp->active, scp, ASC_BACK); ASC_DBG(1, "asc_execute_scsi_cmnd: AdvExeScsiQueue(), " "ASC_NOERROR\n"); break; @@ -4467,19 +4291,8 @@ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) ASC_STATS(shost, callback); ASC_DBG1(1, "asc_isr_callback: shost 0x%lx\n", (ulong)shost); - /* - * If the request isn't found on the active queue, it may - * have been removed to handle a reset request. - * Display a message and return. - */ boardp = ASC_BOARDP(shost); ASC_ASSERT(asc_dvc_varp == &boardp->dvc_var.asc_dvc_var); - if (asc_rmqueue(&boardp->active, scp) == ASC_FALSE) { - ASC_PRINT2 - ("asc_isr_callback: board %d: scp 0x%lx not on active queue\n", - boardp->id, (ulong)scp); - return; - } /* * 'qdonep' contains the command's ending status. @@ -4624,21 +4437,8 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) ASC_STATS(shost, callback); ASC_DBG1(1, "adv_isr_callback: shost 0x%lx\n", (ulong)shost); - /* - * If the request isn't found on the active queue, it may have been - * removed to handle a reset request. Display a message and return. - * - * Note: Because the structure may still be in use don't attempt - * to free the adv_req_t and adv_sgblk_t, if any, structures. - */ boardp = ASC_BOARDP(shost); ASC_ASSERT(adv_dvc_varp == &boardp->dvc_var.adv_dvc_var); - if (asc_rmqueue(&boardp->active, scp) == ASC_FALSE) { - ASC_PRINT2 - ("adv_isr_callback: board %d: scp 0x%lx not on active queue\n", - boardp->id, (ulong)scp); - return; - } /* * 'done_status' contains the command's ending status. @@ -4787,225 +4587,6 @@ static void adv_async_callback(ADV_DVC_VAR *adv_dvc_varp, uchar code) } } -/* - * Add a 'REQP' to the end of specified queue. Set 'tidmask' - * to indicate a command is queued for the device. - * - * 'flag' may be either ASC_FRONT or ASC_BACK. - * - * 'REQPNEXT(reqp)' returns reqp's next pointer. - */ -static void asc_enqueue(asc_queue_t *ascq, REQP reqp, int flag) -{ - int tid; - - ASC_DBG3(3, "asc_enqueue: ascq 0x%lx, reqp 0x%lx, flag %d\n", - (ulong)ascq, (ulong)reqp, flag); - ASC_ASSERT(reqp != NULL); - ASC_ASSERT(flag == ASC_FRONT || flag == ASC_BACK); - tid = REQPTID(reqp); - ASC_ASSERT(tid >= 0 && tid <= ADV_MAX_TID); - if (flag == ASC_FRONT) { - reqp->host_scribble = (unsigned char *)ascq->q_first[tid]; - ascq->q_first[tid] = reqp; - /* If the queue was empty, set the last pointer. */ - if (ascq->q_last[tid] == NULL) { - ascq->q_last[tid] = reqp; - } - } else { /* ASC_BACK */ - if (ascq->q_last[tid] != NULL) { - ascq->q_last[tid]->host_scribble = - (unsigned char *)reqp; - } - ascq->q_last[tid] = reqp; - reqp->host_scribble = NULL; - /* If the queue was empty, set the first pointer. */ - if (ascq->q_first[tid] == NULL) { - ascq->q_first[tid] = reqp; - } - } - /* The queue has at least one entry, set its bit. */ - ascq->q_tidmask |= ADV_TID_TO_TIDMASK(tid); -#ifdef ADVANSYS_STATS - /* Maintain request queue statistics. */ - ascq->q_tot_cnt[tid]++; - ascq->q_cur_cnt[tid]++; - if (ascq->q_cur_cnt[tid] > ascq->q_max_cnt[tid]) { - ascq->q_max_cnt[tid] = ascq->q_cur_cnt[tid]; - ASC_DBG2(2, "asc_enqueue: new q_max_cnt[%d] %d\n", - tid, ascq->q_max_cnt[tid]); - } - REQPTIME(reqp) = REQTIMESTAMP(); -#endif /* ADVANSYS_STATS */ - ASC_DBG1(3, "asc_enqueue: reqp 0x%lx\n", (ulong)reqp); - return; -} - -/* - * Return a pointer to a singly linked list of all the requests queued - * for 'tid' on the 'asc_queue_t' pointed to by 'ascq'. - * - * If 'lastpp' is not NULL, '*lastpp' will be set to point to the - * the last request returned in the singly linked list. - * - * 'tid' should either be a valid target id or if it is ASC_TID_ALL, - * then all queued requests are concatenated into one list and - * returned. - * - * Note: If 'lastpp' is used to append a new list to the end of - * an old list, only change the old list last pointer if '*lastpp' - * (or the function return value) is not NULL, i.e. use a temporary - * variable for 'lastpp' and check its value after the function return - * before assigning it to the list last pointer. - * - * Unfortunately collecting queuing time statistics adds overhead to - * the function that isn't inherent to the function's algorithm. - */ -static REQP asc_dequeue_list(asc_queue_t *ascq, REQP *lastpp, int tid) -{ - REQP firstp, lastp; - int i; - - ASC_DBG2(3, "asc_dequeue_list: ascq 0x%lx, tid %d\n", (ulong)ascq, tid); - ASC_ASSERT((tid == ASC_TID_ALL) || (tid >= 0 && tid <= ADV_MAX_TID)); - - /* - * If 'tid' is not ASC_TID_ALL, return requests only for - * the specified 'tid'. If 'tid' is ASC_TID_ALL, return all - * requests for all tids. - */ - if (tid != ASC_TID_ALL) { - /* Return all requests for the specified 'tid'. */ - if ((ascq->q_tidmask & ADV_TID_TO_TIDMASK(tid)) == 0) { - /* List is empty; Set first and last return pointers to NULL. */ - firstp = lastp = NULL; - } else { - firstp = ascq->q_first[tid]; - lastp = ascq->q_last[tid]; - ascq->q_first[tid] = ascq->q_last[tid] = NULL; - ascq->q_tidmask &= ~ADV_TID_TO_TIDMASK(tid); -#ifdef ADVANSYS_STATS - { - REQP reqp; - ascq->q_cur_cnt[tid] = 0; - for (reqp = firstp; reqp; reqp = REQPNEXT(reqp)) { - REQTIMESTAT("asc_dequeue_list", ascq, - reqp, tid); - } - } -#endif /* ADVANSYS_STATS */ - } - } else { - /* Return all requests for all tids. */ - firstp = lastp = NULL; - for (i = 0; i <= ADV_MAX_TID; i++) { - if (ascq->q_tidmask & ADV_TID_TO_TIDMASK(i)) { - if (firstp == NULL) { - firstp = ascq->q_first[i]; - lastp = ascq->q_last[i]; - } else { - ASC_ASSERT(lastp != NULL); - lastp->host_scribble = - (unsigned char *)ascq->q_first[i]; - lastp = ascq->q_last[i]; - } - ascq->q_first[i] = ascq->q_last[i] = NULL; - ascq->q_tidmask &= ~ADV_TID_TO_TIDMASK(i); -#ifdef ADVANSYS_STATS - ascq->q_cur_cnt[i] = 0; -#endif /* ADVANSYS_STATS */ - } - } -#ifdef ADVANSYS_STATS - { - REQP reqp; - for (reqp = firstp; reqp; reqp = REQPNEXT(reqp)) { - REQTIMESTAT("asc_dequeue_list", ascq, reqp, - reqp->device->id); - } - } -#endif /* ADVANSYS_STATS */ - } - if (lastpp) { - *lastpp = lastp; - } - ASC_DBG1(3, "asc_dequeue_list: firstp 0x%lx\n", (ulong)firstp); - return firstp; -} - -/* - * Remove the specified 'REQP' from the specified queue for - * the specified target device. Clear the 'tidmask' bit for the - * device if no more commands are left queued for it. - * - * 'REQPNEXT(reqp)' returns reqp's the next pointer. - * - * Return ASC_TRUE if the command was found and removed, - * otherwise return ASC_FALSE. - */ -static int asc_rmqueue(asc_queue_t *ascq, REQP reqp) -{ - REQP currp, prevp; - int tid; - int ret = ASC_FALSE; - - ASC_DBG2(3, "asc_rmqueue: ascq 0x%lx, reqp 0x%lx\n", - (ulong)ascq, (ulong)reqp); - ASC_ASSERT(reqp != NULL); - - tid = REQPTID(reqp); - ASC_ASSERT(tid >= 0 && tid <= ADV_MAX_TID); - - /* - * Handle the common case of 'reqp' being the first - * entry on the queue. - */ - if (reqp == ascq->q_first[tid]) { - ret = ASC_TRUE; - ascq->q_first[tid] = REQPNEXT(reqp); - /* If the queue is now empty, clear its bit and the last pointer. */ - if (ascq->q_first[tid] == NULL) { - ascq->q_tidmask &= ~ADV_TID_TO_TIDMASK(tid); - ASC_ASSERT(ascq->q_last[tid] == reqp); - ascq->q_last[tid] = NULL; - } - } else if (ascq->q_first[tid] != NULL) { - ASC_ASSERT(ascq->q_last[tid] != NULL); - /* - * Because the case of 'reqp' being the first entry has been - * handled above and it is known the queue is not empty, if - * 'reqp' is found on the queue it is guaranteed the queue will - * not become empty and that 'q_first[tid]' will not be changed. - * - * Set 'prevp' to the first entry, 'currp' to the second entry, - * and search for 'reqp'. - */ - for (prevp = ascq->q_first[tid], currp = REQPNEXT(prevp); - currp; prevp = currp, currp = REQPNEXT(currp)) { - if (currp == reqp) { - ret = ASC_TRUE; - prevp->host_scribble = - (unsigned char *)REQPNEXT(currp); - reqp->host_scribble = NULL; - if (ascq->q_last[tid] == reqp) { - ascq->q_last[tid] = prevp; - } - break; - } - } - } -#ifdef ADVANSYS_STATS - /* Maintain request queue statistics. */ - if (ret == ASC_TRUE) { - ascq->q_cur_cnt[tid]--; - REQTIMESTAT("asc_rmqueue", ascq, reqp, tid); - } - ASC_ASSERT(ascq->q_cur_cnt[tid] >= 0); -#endif /* ADVANSYS_STATS */ - ASC_DBG2(3, "asc_rmqueue: reqp 0x%lx, ret %d\n", (ulong)reqp, ret); - return ret; -} - #ifdef CONFIG_PROC_FS /* * asc_prt_board_devices() @@ -6465,79 +6046,6 @@ static int asc_prt_board_stats(struct Scsi_Host *shost, char *cp, int cplen) return totlen; } - -/* - * asc_prt_target_stats() - * - * Note: no single line should be greater than ASC_PRTLINE_SIZE, - * cf. asc_prt_line(). - * - * This is separated from asc_prt_board_stats because a full set - * of targets will overflow ASC_PRTBUF_SIZE. - * - * Return the number of characters copied into 'cp'. No more than - * 'cplen' characters will be copied to 'cp'. - */ -static int -asc_prt_target_stats(struct Scsi_Host *shost, int tgt_id, char *cp, int cplen) -{ - int leftlen; - int totlen; - int len; - struct asc_stats *s; - ushort chip_scsi_id; - asc_board_t *boardp; - asc_queue_t *active; - - leftlen = cplen; - totlen = len = 0; - - boardp = ASC_BOARDP(shost); - s = &boardp->asc_stats; - - active = &ASC_BOARDP(shost)->active; - - if (ASC_NARROW_BOARD(boardp)) { - chip_scsi_id = boardp->dvc_cfg.asc_dvc_cfg.chip_scsi_id; - } else { - chip_scsi_id = boardp->dvc_var.adv_dvc_var.chip_scsi_id; - } - - if ((chip_scsi_id == tgt_id) || - ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(tgt_id)) == 0)) { - return 0; - } - - do { - if (active->q_tot_cnt[tgt_id] > 0) { - len = asc_prt_line(cp, leftlen, " target %d\n", tgt_id); - ASC_PRT_NEXT(); - - len = asc_prt_line(cp, leftlen, - " active: cnt [cur %d, max %d, tot %u], time [min %d, max %d, avg %lu.%01lu]\n", - active->q_cur_cnt[tgt_id], - active->q_max_cnt[tgt_id], - active->q_tot_cnt[tgt_id], - active->q_min_tim[tgt_id], - active->q_max_tim[tgt_id], - (active->q_tot_cnt[tgt_id] == - 0) ? 0 : (active-> - q_tot_tim[tgt_id] / - active-> - q_tot_cnt[tgt_id]), - (active->q_tot_cnt[tgt_id] == - 0) ? 0 : ASC_TENTHS(active-> - q_tot_tim - [tgt_id], - active-> - q_tot_cnt - [tgt_id])); - ASC_PRT_NEXT(); - } - } while (0); - - return totlen; -} #endif /* CONFIG_PROC_FS */ #endif /* ADVANSYS_STATS */ -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 10/22] advansys: Enable interrupts earlier in queuecommand 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox ` (8 preceding siblings ...) 2007-09-09 14:56 ` [PATCH 09/22] advansys: Remove `active' queue and all remaining internal queueing code Matthew Wilcox @ 2007-09-09 14:56 ` Matthew Wilcox 2007-09-09 14:56 ` [PATCH 11/22] advansys: Support 16-byte commands properly Matthew Wilcox ` (12 subsequent siblings) 22 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 14:56 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox Move as much as possible outside the critical section in queuecommand, eg: - Set the scsi_done field before acquiring the lock - Call asc_scsi_done after dropping the lock Also remove a comment suggesting we should enable interrupts (now we do) and do some minor reformatting for readability. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 23 +++++++++++------------ 1 files changed, 11 insertions(+), 12 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 67cdfe6..d7bc0cf 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -3176,23 +3176,24 @@ static void asc_scsi_done(struct scsi_cmnd *scp) * in the 'scp' result field. */ static int -advansys_queuecommand(struct scsi_cmnd *scp, void (*done) (struct scsi_cmnd *)) +advansys_queuecommand(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd *)) { - struct Scsi_Host *shost; - asc_board_t *boardp; - ulong flags; + struct Scsi_Host *shost = scp->device->host; + asc_board_t *boardp = ASC_BOARDP(shost); + unsigned long flags; int asc_res, result = 0; - shost = scp->device->host; - boardp = ASC_BOARDP(shost); ASC_STATS(shost, queuecommand); + scp->scsi_done = done; - /* host_lock taken by mid-level prior to call but need to protect */ - /* against own ISR */ + /* + * host_lock taken by mid-level prior to call, but need + * to protect against own ISR + */ spin_lock_irqsave(&boardp->lock, flags); - - scp->scsi_done = done; asc_res = asc_execute_scsi_cmnd(scp); + spin_unlock_irqrestore(&boardp->lock, flags); + switch (asc_res) { case ASC_NOERROR: break; @@ -3201,11 +3202,9 @@ advansys_queuecommand(struct scsi_cmnd *scp, void (*done) (struct scsi_cmnd *)) break; case ASC_ERROR: default: - /* Interrupts could be enabled here. */ asc_scsi_done(scp); break; } - spin_unlock_irqrestore(&boardp->lock, flags); return result; } -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 11/22] advansys: Support 16-byte commands properly 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox ` (9 preceding siblings ...) 2007-09-09 14:56 ` [PATCH 10/22] advansys: Enable interrupts earlier in queuecommand Matthew Wilcox @ 2007-09-09 14:56 ` Matthew Wilcox 2007-09-09 14:56 ` [PATCH 12/22] advansys: Remove a check for an impossible condition Matthew Wilcox ` (11 subsequent siblings) 22 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 14:56 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox The SCSI midlayer won't send commands greater than ->max_cmd_len. So the checks on length in asc_build_req and adv_build_req are obsolete and can be deleted, but also we have to set the max_cmd_len in advansys_board_found(). Also move the length definitions together, and write a helpful comment. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 39 ++++++++++----------------------------- 1 files changed, 10 insertions(+), 29 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index d7bc0cf..ef4f679 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -210,10 +210,16 @@ typedef unsigned char uchar; #define ASC_SCSI_WIDTH_BIT_SET 0xFF #define ASC_MAX_SENSE_LEN 32 #define ASC_MIN_SENSE_LEN 14 -#define ASC_MAX_CDB_LEN 12 #define ASC_SCSI_RESET_HOLD_TIME_US 60 /* + * Narrow boards only support 12-byte commands, while wide boards + * extend to 16-byte commands. + */ +#define ASC_MAX_CDB_LEN 12 +#define ADV_MAX_CDB_LEN 16 + +/* * Inquiry SPC-2 SPI Byte 1 EVPD (Enable Vital Product Data) * and CmdDt (Command Support Data) field bit definitions. */ @@ -1190,12 +1196,6 @@ static const char *advansys_info(struct Scsi_Host *shost); #define ADV_CARRIER_COUNT (ASC_DEF_MAX_HOST_QNG + 15) /* - * For wide boards a CDB length maximum of 16 bytes - * is supported. - */ -#define ADV_MAX_CDB_LEN 16 - -/* * Define total number of simultaneous maximum element scatter-gather * request blocks per wide adapter. ASC_DEF_MAX_HOST_QNG (253) is the * maximum number of outstanding commands per wide host adapter. Each @@ -3856,17 +3856,7 @@ static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp) /* * Build the ASC_SCSI_Q request. - * - * For narrow boards a CDB length maximum of 12 bytes - * is supported. */ - if (scp->cmd_len > ASC_MAX_CDB_LEN) { - ASC_PRINT3("asc_build_req: board %d: cmd_len %d > " - "ASC_MAX_CDB_LEN %d\n", boardp->id, scp->cmd_len, - ASC_MAX_CDB_LEN); - scp->result = HOST_BYTE(DID_ERROR); - return ASC_ERROR; - } asc_scsi_q.cdbptr = &scp->cmnd[0]; asc_scsi_q.q2.cdb_len = scp->cmd_len; asc_scsi_q.q1.target_id = ASC_TID_TO_TARGET_ID(scp->device->id); @@ -4029,18 +4019,7 @@ adv_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, * Build the ADV_SCSI_REQ_Q request. */ - /* - * Set CDB length and copy it to the request structure. - * For wide boards a CDB length maximum of 16 bytes - * is supported. - */ - if (scp->cmd_len > ADV_MAX_CDB_LEN) { - ASC_PRINT3 - ("adv_build_req: board %d: cmd_len %d > ADV_MAX_CDB_LEN %d\n", - boardp->id, scp->cmd_len, ADV_MAX_CDB_LEN); - scp->result = HOST_BYTE(DID_ERROR); - return ASC_ERROR; - } + /* Set CDB length and copy it to the request structure. */ scsiqp->cdb_len = scp->cmd_len; /* Copy first 12 CDB bytes to cdb[]. */ for (i = 0; i < scp->cmd_len && i < 12; i++) { @@ -14834,6 +14813,7 @@ advansys_board_found(int iop, struct device *dev, int bus_type) if (ASC_NARROW_BOARD(boardp)) { shost->max_id = ASC_MAX_TID + 1; shost->max_lun = ASC_MAX_LUN + 1; + shost->max_cmd_len = ASC_MAX_CDB_LEN; shost->io_port = asc_dvc_varp->iop_base; boardp->asc_n_io_port = ASC_IOADR_GAP; @@ -14844,6 +14824,7 @@ advansys_board_found(int iop, struct device *dev, int bus_type) } else { shost->max_id = ADV_MAX_TID + 1; shost->max_lun = ADV_MAX_LUN + 1; + shost->max_cmd_len = ADV_MAX_CDB_LEN; /* * Save the I/O Port address and length even though -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 12/22] advansys: Remove a check for an impossible condition 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox ` (10 preceding siblings ...) 2007-09-09 14:56 ` [PATCH 11/22] advansys: Support 16-byte commands properly Matthew Wilcox @ 2007-09-09 14:56 ` Matthew Wilcox 2007-09-09 14:56 ` [PATCH 13/22] advansys: Remove some custom wrappers Matthew Wilcox ` (10 subsequent siblings) 22 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 14:56 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox AscExeScsiQueue() has one caller, and it passes the address of a variable; this cannot ever be NULL. This is the only place that ever sets ASCQ_ERR_SCSIQ_NULL_PTR, so delete that error code too, as well as several other unused ASCQ_ERR codes. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 12 ------------ 1 files changed, 0 insertions(+), 12 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index ef4f679..60a9188 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -520,14 +520,6 @@ typedef struct asc_risc_sg_list_q { #define ASCQ_ERR_ISR_RE_ENTRY 0x1A #define ASCQ_ERR_CRITICAL_RE_ENTRY 0x1B #define ASCQ_ERR_ISR_ON_CRITICAL 0x1C -#define ASCQ_ERR_SG_LIST_ODD_ADDRESS 0x1D -#define ASCQ_ERR_XFER_ADDRESS_TOO_BIG 0x1E -#define ASCQ_ERR_SCSIQ_NULL_PTR 0x1F -#define ASCQ_ERR_SCSIQ_BAD_NEXT_PTR 0x20 -#define ASCQ_ERR_GET_NUM_OF_FREE_Q 0x21 -#define ASCQ_ERR_SEND_SCSI_Q 0x22 -#define ASCQ_ERR_HOST_REQ_RISC_HALT 0x23 -#define ASCQ_ERR_RESET_SDTR 0x24 /* * Warning code values are set in ASC_DVC_VAR 'warn_code'. @@ -7578,10 +7570,6 @@ static int AscExeScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq) sg_head = scsiq->sg_head; if (asc_dvc->err_code != 0) return (ERR); - if (scsiq == (ASC_SCSI_Q *)0L) { - AscSetLibErrorCode(asc_dvc, ASCQ_ERR_SCSIQ_NULL_PTR); - return (ERR); - } scsiq->q1.q_no = 0; if ((scsiq->q2.tag_code & ASC_TAG_FLAG_EXTRA_BYTES) == 0) { scsiq->q1.extra_bytes = 0; -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 13/22] advansys: Remove some custom wrappers 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox ` (11 preceding siblings ...) 2007-09-09 14:56 ` [PATCH 12/22] advansys: Remove a check for an impossible condition Matthew Wilcox @ 2007-09-09 14:56 ` Matthew Wilcox 2007-09-09 14:56 ` [PATCH 14/22] advansys: Comment/indentation/macro cleanup Matthew Wilcox ` (9 subsequent siblings) 22 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 14:56 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox - Replace ASC_ASSERT() with BUG_ON(). In a few places, get rid of the assertion altogether -- the ensuing crash will tell us all we need to know. Use BUG() where it fits better than BUG_ON(). Also fix a fencepost error in advansys_proc_info(). - Replace DvcSleepMilliSecond with mdelay. Despite its name using 'sleep', the implementation was a delay. I've marked some places with XXX where we should probably be using msleep instead. They need to be audited to be sure we can sleep in that context. - Replace DvcDelayMicroSecond with udelay. - Replace DvcDelayNanoSecond with udelay too. All callers were multiples of 1000. - Remove DvcEnterCritical and DvcLeaveCritical. These functions are no-ops, and as the comments said, the spinlock protects the critical sections. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 213 +++++++++++------------------------------------ 1 files changed, 49 insertions(+), 164 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 60a9188..9c5d37d 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -70,9 +70,6 @@ */ #warning this driver is still not properly converted to the DMA API -/* Enable driver assertions. */ -#define ADVANSYS_ASSERT - /* Enable driver /proc statistics. */ #define ADVANSYS_STATS @@ -1121,10 +1118,6 @@ static uchar AscGetChipScsiCtrl(PortAddr); static uchar AscGetChipVersion(PortAddr, ushort); static ASC_DCNT AscLoadMicroCode(PortAddr, ushort, uchar *, ushort); static void AscToggleIRQAct(PortAddr); -static inline ulong DvcEnterCritical(void); -static inline void DvcLeaveCritical(ulong); -static void DvcSleepMilliSecond(ASC_DCNT); -static void DvcDelayNanoSecond(ASC_DVC_VAR *, ASC_DCNT); static void DvcPutScsiQ(PortAddr, ushort, uchar *, int); static void DvcGetQinfo(PortAddr, ushort, uchar *, int); static ushort AscInitAsc1000Driver(ASC_DVC_VAR *); @@ -2226,15 +2219,8 @@ typedef struct adv_scsi_req_q { #define ADV_HOST_SCSI_BUS_RESET 0x80 /* Host Initiated SCSI Bus Reset. */ -/* - * Device drivers must define the following functions. - */ -static inline ulong DvcEnterCritical(void); -static inline void DvcLeaveCritical(ulong); -static void DvcSleepMilliSecond(ADV_DCNT); static ADV_PADDR DvcGetPhyAddr(ADV_DVC_VAR *, ADV_SCSI_REQ_Q *, uchar *, ASC_SDCNT *, int); -static void DvcDelayMicroSecond(ADV_DVC_VAR *, ushort); /* * Adv Library functions available to drivers. @@ -2670,24 +2656,6 @@ do { \ ASC_DBG_PRT_HEX((lvl), "INQUIRY", (uchar *) (inq), (len)); #endif /* ADVANSYS_DEBUG */ -#ifndef ADVANSYS_ASSERT -#define ASC_ASSERT(a) -#else /* ADVANSYS_ASSERT */ - -#define ASC_ASSERT(a) \ - { \ - if (!(a)) { \ - printk("ASC_ASSERT() Failure: file %s, line %d\n", \ - __FILE__, __LINE__); \ - } \ - } - -#endif /* ADVANSYS_ASSERT */ - -/* - * --- Driver Structures - */ - #ifdef ADVANSYS_STATS /* Per board statistics structure */ @@ -2949,7 +2917,7 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, if (ASC_WIDE_BOARD(boardp)) { cp = boardp->prtbuf; cplen = asc_prt_adv_bios(shost, cp, ASC_PRTBUF_SIZE); - ASC_ASSERT(cplen < ASC_PRTBUF_SIZE); + BUG_ON(cplen >= ASC_PRTBUF_SIZE); cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); totcnt += cnt; @@ -2967,7 +2935,7 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, */ cp = boardp->prtbuf; cplen = asc_prt_board_devices(shost, cp, ASC_PRTBUF_SIZE); - ASC_ASSERT(cplen < ASC_PRTBUF_SIZE); + BUG_ON(cplen >= ASC_PRTBUF_SIZE); cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); totcnt += cnt; leftlen -= cnt; @@ -2987,7 +2955,7 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, } else { cplen = asc_prt_adv_board_eeprom(shost, cp, ASC_PRTBUF_SIZE); } - ASC_ASSERT(cplen < ASC_PRTBUF_SIZE); + BUG_ON(cplen >= ASC_PRTBUF_SIZE); cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); totcnt += cnt; leftlen -= cnt; @@ -3003,7 +2971,7 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, */ cp = boardp->prtbuf; cplen = asc_prt_driver_conf(shost, cp, ASC_PRTBUF_SIZE); - ASC_ASSERT(cplen < ASC_PRTBUF_SIZE); + BUG_ON(cplen >= ASC_PRTBUF_SIZE); cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); totcnt += cnt; leftlen -= cnt; @@ -3020,7 +2988,7 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, */ cp = boardp->prtbuf; cplen = asc_prt_board_stats(shost, cp, ASC_PRTBUF_SIZE); - ASC_ASSERT(cplen <= ASC_PRTBUF_SIZE); + BUG_ON(cplen >= ASC_PRTBUF_SIZE); cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); totcnt += cnt; leftlen -= cnt; @@ -3042,7 +3010,7 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, } else { cplen = asc_prt_adv_board_info(shost, cp, ASC_PRTBUF_SIZE); } - ASC_ASSERT(cplen < ASC_PRTBUF_SIZE); + BUG_ON(cplen >= ASC_PRTBUF_SIZE); cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); totcnt += cnt; leftlen -= cnt; @@ -3139,7 +3107,7 @@ static const char *advansys_info(struct Scsi_Host *shost) ASC_VERSION, widename, (ulong)adv_dvc_varp->iop_base, (ulong)adv_dvc_varp->iop_base + boardp->asc_n_io_port - 1, shost->irq); } - ASC_ASSERT(strlen(info) < ASC_INFO_SIZE); + BUG_ON(strlen(info) >= ASC_INFO_SIZE); ASC_DBG(1, "advansys_info: end\n"); return info; } @@ -4201,7 +4169,6 @@ adv_get_sglist(asc_board_t *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, * Point the previous ADV_SG_BLOCK structure to * the newly allocated ADV_SG_BLOCK structure. */ - ASC_ASSERT(prev_sg_block != NULL); prev_sg_block->sg_ptr = cpu_to_le32(sg_block_paddr); } @@ -4262,7 +4229,7 @@ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) ASC_DBG1(1, "asc_isr_callback: shost 0x%lx\n", (ulong)shost); boardp = ASC_BOARDP(shost); - ASC_ASSERT(asc_dvc_varp == &boardp->dvc_var.asc_dvc_var); + BUG_ON(asc_dvc_varp != &boardp->dvc_var.asc_dvc_var); /* * 'qdonep' contains the command's ending status. @@ -4408,7 +4375,7 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) ASC_DBG1(1, "adv_isr_callback: shost 0x%lx\n", (ulong)shost); boardp = ASC_BOARDP(shost); - ASC_ASSERT(adv_dvc_varp == &boardp->dvc_var.adv_dvc_var); + BUG_ON(adv_dvc_varp != &boardp->dvc_var.adv_dvc_var); /* * 'done_status' contains the command's ending status. @@ -5738,7 +5705,7 @@ static int asc_prt_line(char *buf, int buflen, char *fmt, ...) va_start(args, fmt); ret = vsprintf(s, fmt, args); - ASC_ASSERT(ret < ASC_PRTLINE_SIZE); + BUG_ON(ret >= ASC_PRTLINE_SIZE); if (buf == NULL) { (void)printk(s); ret = 0; @@ -5756,36 +5723,6 @@ static int asc_prt_line(char *buf, int buflen, char *fmt, ...) */ /* - * Delay for 'n' milliseconds. Don't use the 'jiffies' - * global variable which is incremented once every 5 ms - * from a timer interrupt, because this function may be - * called when interrupts are disabled. - */ -static void DvcSleepMilliSecond(ADV_DCNT n) -{ - ASC_DBG1(4, "DvcSleepMilliSecond: %lu\n", (ulong)n); - mdelay(n); -} - -/* - * Currently and inline noop but leave as a placeholder. - * Leave DvcEnterCritical() as a noop placeholder. - */ -static inline ulong DvcEnterCritical(void) -{ - return 0; -} - -/* - * Critical sections are all protected by the board spinlock. - * Leave DvcLeaveCritical() as a noop placeholder. - */ -static inline void DvcLeaveCritical(ulong flags) -{ - return; -} - -/* * void * DvcPutScsiQ(PortAddr iop_base, ushort s_addr, uchar *outbuf, int words) * @@ -6317,10 +6254,9 @@ static void asc_prt_adv_sgblock(int sgblockno, ADV_SG_BLOCK *b) (ulong)b, sgblockno); printk(" sg_cnt %u, sg_ptr 0x%lx\n", b->sg_cnt, (ulong)le32_to_cpu(b->sg_ptr)); - ASC_ASSERT(b->sg_cnt <= NO_OF_SG_PER_BLOCK); - if (b->sg_ptr != 0) { - ASC_ASSERT(b->sg_cnt == NO_OF_SG_PER_BLOCK); - } + BUG_ON(b->sg_cnt > NO_OF_SG_PER_BLOCK); + if (b->sg_ptr != 0) + BUG_ON(b->sg_cnt != NO_OF_SG_PER_BLOCK); for (i = 0; i < b->sg_cnt; i++) { printk(" [%u]: sg_addr 0x%lx, sg_count 0x%lx\n", i, (ulong)b->sg_list[i].sg_addr, @@ -6590,7 +6526,7 @@ static int AscIsrChipHalted(ASC_DVC_VAR *asc_dvc) uchar scsi_status; asc_board_t *boardp; - ASC_ASSERT(asc_dvc->drv_ptr != NULL); + BUG_ON(!asc_dvc->drv_ptr); boardp = asc_dvc->drv_ptr; iop_base = asc_dvc->iop_base; @@ -7199,7 +7135,7 @@ static int AscIsrQDone(ASC_DVC_VAR *asc_dvc) AscSetChipControl(iop_base, (uchar)(CC_SCSI_RESET | CC_HALT)); - DvcDelayNanoSecond(asc_dvc, 60000); + udelay(60); AscSetChipControl(iop_base, CC_HALT); AscSetChipStatus(iop_base, CIW_CLR_SCSI_RESET_INT); @@ -7276,7 +7212,7 @@ static int AscISR(ASC_DVC_VAR *asc_dvc) saved_ctrl_reg &= (uchar)(~CC_HALT); while ((AscGetChipStatus(iop_base) & CSW_SCSI_RESET_ACTIVE) && (i-- > 0)) { - DvcSleepMilliSecond(100); + mdelay(100); } AscSetChipControl(iop_base, (CC_CHIP_RESET | CC_HALT)); AscSetChipControl(iop_base, CC_HALT); @@ -7549,7 +7485,6 @@ static uchar _syn_offset_one_disable_cmd[ASC_SYN_OFFSET_ONE_DISABLE_LIST] = { static int AscExeScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq) { PortAddr iop_base; - ulong last_int_level; int sta; int n_q_required; int disable_syn_offset_one_fix; @@ -7593,9 +7528,7 @@ static int AscExeScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq) scsiq->q1.cntl |= (QC_MSG_OUT | QC_URGENT); } } - last_int_level = DvcEnterCritical(); if (asc_dvc->in_critical_cnt != 0) { - DvcLeaveCritical(last_int_level); AscSetLibErrorCode(asc_dvc, ASCQ_ERR_CRITICAL_RE_ENTRY); return (ERR); } @@ -7603,13 +7536,11 @@ static int AscExeScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq) if ((scsiq->q1.cntl & QC_SG_HEAD) != 0) { if ((sg_entry_cnt = sg_head->entry_cnt) == 0) { asc_dvc->in_critical_cnt--; - DvcLeaveCritical(last_int_level); return (ERR); } #if !CC_VERY_LONG_SG_LIST if (sg_entry_cnt > ASC_MAX_SG_LIST) { asc_dvc->in_critical_cnt--; - DvcLeaveCritical(last_int_level); return (ERR); } #endif /* !CC_VERY_LONG_SG_LIST */ @@ -7724,7 +7655,6 @@ static int AscExeScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq) AscSendScsiQueue(asc_dvc, scsiq, n_q_required)) == 1) { asc_dvc->in_critical_cnt--; - DvcLeaveCritical(last_int_level); return (sta); } } @@ -7769,13 +7699,11 @@ static int AscExeScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq) if ((sta = AscSendScsiQueue(asc_dvc, scsiq, n_q_required)) == 1) { asc_dvc->in_critical_cnt--; - DvcLeaveCritical(last_int_level); return (sta); } } } asc_dvc->in_critical_cnt--; - DvcLeaveCritical(last_int_level); return (sta); } @@ -8308,7 +8236,7 @@ static int AscHostReqRiscHalt(PortAddr iop_base) sta = 1; break; } - DvcSleepMilliSecond(100); + mdelay(100); } while (count++ < 20); AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, saved_stop_code); return (sta); @@ -8326,22 +8254,12 @@ static int AscStopQueueExe(PortAddr iop_base) ASC_STOP_ACK_RISC_STOP) { return (1); } - DvcSleepMilliSecond(100); + mdelay(100); } while (count++ < 20); } return (0); } -static void DvcDelayMicroSecond(ADV_DVC_VAR *asc_dvc, ushort micro_sec) -{ - udelay(micro_sec); -} - -static void DvcDelayNanoSecond(ASC_DVC_VAR *asc_dvc, ASC_DCNT nano_sec) -{ - udelay((nano_sec + 999) / 1000); -} - static int AscStartChip(PortAddr iop_base) { AscSetChipControl(iop_base, 0); @@ -8460,16 +8378,16 @@ static int AscResetChipAndScsiBus(ASC_DVC_VAR *asc_dvc) iop_base = asc_dvc->iop_base; while ((AscGetChipStatus(iop_base) & CSW_SCSI_RESET_ACTIVE) && (i-- > 0)) { - DvcSleepMilliSecond(100); + mdelay(100); } AscStopChip(iop_base); AscSetChipControl(iop_base, CC_CHIP_RESET | CC_SCSI_RESET | CC_HALT); - DvcDelayNanoSecond(asc_dvc, 60000); + udelay(60); AscSetChipIH(iop_base, INS_RFLAG_WTM); AscSetChipIH(iop_base, INS_HALT); AscSetChipControl(iop_base, CC_CHIP_RESET | CC_HALT); AscSetChipControl(iop_base, CC_HALT); - DvcSleepMilliSecond(200); + mdelay(200); AscSetChipStatus(iop_base, CIW_CLR_SCSI_RESET_INT); AscSetChipStatus(iop_base, 0); return (AscIsChipHalted(iop_base)); @@ -8711,8 +8629,7 @@ static ushort AscInitAsc1000Driver(ASC_DVC_VAR *asc_dvc) if ((asc_dvc->dvc_cntl & ASC_CNTL_RESET_SCSI) && !(asc_dvc->init_state & ASC_INIT_RESET_SCSI_DONE)) { AscResetChipAndScsiBus(asc_dvc); - DvcSleepMilliSecond((ASC_DCNT) - ((ushort)asc_dvc->scsi_reset_wait * 1000)); + mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ } asc_dvc->init_state |= ASC_INIT_STATE_BEG_LOAD_MC; if (asc_dvc->err_code != 0) @@ -8869,8 +8786,7 @@ static ushort __devinit AscInitFromEEP(ASC_DVC_VAR *asc_dvc) (AscGetChipScsiCtrl(iop_base) != 0)) { asc_dvc->init_state |= ASC_INIT_RESET_SCSI_DONE; AscResetChipAndScsiBus(asc_dvc); - DvcSleepMilliSecond((ASC_DCNT) - ((ushort)asc_dvc->scsi_reset_wait * 1000)); + mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ } if (AscIsChipHalted(iop_base) == FALSE) { asc_dvc->err_code |= ASC_IERR_START_STOP_CHIP; @@ -9084,7 +9000,7 @@ static int __devinit AscTestExternalLram(ASC_DVC_VAR *asc_dvc) saved_word = AscReadLramWord(iop_base, q_addr); AscSetChipLramAddr(iop_base, q_addr); AscSetChipLramData(iop_base, 0x55AA); - DvcSleepMilliSecond(10); + mdelay(10); AscSetChipLramAddr(iop_base, q_addr); if (AscGetChipLramData(iop_base) == 0x55AA) { sta = 1; @@ -9101,7 +9017,7 @@ static int __devinit AscWriteEEPCmdReg(PortAddr iop_base, uchar cmd_reg) retry = 0; while (TRUE) { AscSetChipEEPCmd(iop_base, cmd_reg); - DvcSleepMilliSecond(1); + mdelay(1); read_back = AscGetChipEEPCmd(iop_base); if (read_back == cmd_reg) { return (1); @@ -9120,7 +9036,7 @@ static int __devinit AscWriteEEPDataReg(PortAddr iop_base, ushort data_reg) retry = 0; while (TRUE) { AscSetChipEEPData(iop_base, data_reg); - DvcSleepMilliSecond(1); + mdelay(1); read_back = AscGetChipEEPData(iop_base); if (read_back == data_reg) { return (1); @@ -9133,13 +9049,13 @@ static int __devinit AscWriteEEPDataReg(PortAddr iop_base, ushort data_reg) static void __devinit AscWaitEEPRead(void) { - DvcSleepMilliSecond(1); + mdelay(1); return; } static void __devinit AscWaitEEPWrite(void) { - DvcSleepMilliSecond(20); + mdelay(20); return; } @@ -11364,7 +11280,7 @@ AdvInitGetConfig(struct pci_dev *pdev, asc_board_t *boardp) */ AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, ADV_CTRL_REG_CMD_RESET); - DvcSleepMilliSecond(100); + mdelay(100); AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, ADV_CTRL_REG_CMD_WR_IO_REG); @@ -12048,7 +11964,7 @@ static int AdvInitAsc38C0800Driver(ADV_DVC_VAR *asc_dvc) */ for (i = 0; i < 2; i++) { AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, PRE_TEST_MODE); - DvcSleepMilliSecond(10); /* Wait for 10ms before reading back. */ + mdelay(10); /* Wait for 10ms before reading back. */ byte = AdvReadByteRegister(iop_base, IOPB_RAM_BIST); if ((byte & RAM_TEST_DONE) == 0 || (byte & 0x0F) != PRE_TEST_VALUE) { @@ -12057,7 +11973,7 @@ static int AdvInitAsc38C0800Driver(ADV_DVC_VAR *asc_dvc) } AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, NORMAL_MODE); - DvcSleepMilliSecond(10); /* Wait for 10ms before reading back. */ + mdelay(10); /* Wait for 10ms before reading back. */ if (AdvReadByteRegister(iop_base, IOPB_RAM_BIST) != NORMAL_VALUE) { asc_dvc->err_code = ASC_IERR_BIST_PRE_TEST; @@ -12073,7 +11989,7 @@ static int AdvInitAsc38C0800Driver(ADV_DVC_VAR *asc_dvc) * err_code, and return an error. */ AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, RAM_TEST_MODE); - DvcSleepMilliSecond(10); /* Wait for 10ms before checking status. */ + mdelay(10); /* Wait for 10ms before checking status. */ byte = AdvReadByteRegister(iop_base, IOPB_RAM_BIST); if ((byte & RAM_TEST_DONE) == 0 || (byte & RAM_TEST_STATUS) != 0) { @@ -12529,7 +12445,7 @@ static int AdvInitAsc38C1600Driver(ADV_DVC_VAR *asc_dvc) */ for (i = 0; i < 2; i++) { AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, PRE_TEST_MODE); - DvcSleepMilliSecond(10); /* Wait for 10ms before reading back. */ + mdelay(10); /* Wait for 10ms before reading back. */ byte = AdvReadByteRegister(iop_base, IOPB_RAM_BIST); if ((byte & RAM_TEST_DONE) == 0 || (byte & 0x0F) != PRE_TEST_VALUE) { @@ -12538,7 +12454,7 @@ static int AdvInitAsc38C1600Driver(ADV_DVC_VAR *asc_dvc) } AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, NORMAL_MODE); - DvcSleepMilliSecond(10); /* Wait for 10ms before reading back. */ + mdelay(10); /* Wait for 10ms before reading back. */ if (AdvReadByteRegister(iop_base, IOPB_RAM_BIST) != NORMAL_VALUE) { asc_dvc->err_code = ASC_IERR_BIST_PRE_TEST; @@ -12554,7 +12470,7 @@ static int AdvInitAsc38C1600Driver(ADV_DVC_VAR *asc_dvc) * err_code, and return an error. */ AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, RAM_TEST_MODE); - DvcSleepMilliSecond(10); /* Wait for 10ms before checking status. */ + mdelay(10); /* Wait for 10ms before checking status. */ byte = AdvReadByteRegister(iop_base, IOPB_RAM_BIST); if ((byte & RAM_TEST_DONE) == 0 || (byte & RAM_TEST_STATUS) != 0) { @@ -13645,12 +13561,11 @@ static void __devinit AdvWaitEEPCmd(AdvPortAddr iop_base) ASC_EEP_CMD_DONE) { break; } - DvcSleepMilliSecond(1); + mdelay(1); } if ((AdvReadWordRegister(iop_base, IOPW_EE_CMD) & ASC_EEP_CMD_DONE) == - 0) { - ASC_ASSERT(0); - } + 0) + BUG(); return; } @@ -13688,7 +13603,7 @@ AdvSet3550EEPConfig(AdvPortAddr iop_base, ADVEEP_3550_CONFIG *cfg_buf) AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); AdvWaitEEPCmd(iop_base); - DvcSleepMilliSecond(ADV_EEP_DELAY_MS); + mdelay(ADV_EEP_DELAY_MS); } /* @@ -13756,7 +13671,7 @@ AdvSet38C0800EEPConfig(AdvPortAddr iop_base, ADVEEP_38C0800_CONFIG *cfg_buf) AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); AdvWaitEEPCmd(iop_base); - DvcSleepMilliSecond(ADV_EEP_DELAY_MS); + mdelay(ADV_EEP_DELAY_MS); } /* @@ -13824,7 +13739,7 @@ AdvSet38C1600EEPConfig(AdvPortAddr iop_base, ADVEEP_38C1600_CONFIG *cfg_buf) AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); AdvWaitEEPCmd(iop_base); - DvcSleepMilliSecond(ADV_EEP_DELAY_MS); + mdelay(ADV_EEP_DELAY_MS); } /* @@ -13882,14 +13797,11 @@ AdvSet38C1600EEPConfig(AdvPortAddr iop_base, ADVEEP_38C1600_CONFIG *cfg_buf) */ static int AdvExeScsiQueue(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq) { - ulong last_int_level; AdvPortAddr iop_base; ADV_DCNT req_size; ADV_PADDR req_paddr; ADV_CARR_T *new_carrp; - ASC_ASSERT(scsiq != NULL); /* 'scsiq' should never be NULL. */ - /* * The ADV_SCSI_REQ_Q 'target_id' field should never exceed ADV_MAX_TID. */ @@ -13901,14 +13813,11 @@ static int AdvExeScsiQueue(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq) iop_base = asc_dvc->iop_base; - last_int_level = DvcEnterCritical(); - /* * Allocate a carrier ensuring at least one carrier always * remains on the freelist and initialize fields. */ if ((new_carrp = asc_dvc->carr_freelist) == NULL) { - DvcLeaveCritical(last_int_level); return ADV_BUSY; } asc_dvc->carr_freelist = (ADV_CARR_T *) @@ -13931,8 +13840,8 @@ static int AdvExeScsiQueue(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq) req_paddr = DvcGetPhyAddr(asc_dvc, scsiq, (uchar *)scsiq, (ADV_SDCNT *)&req_size, ADV_IS_SCSIQ_FLAG); - ASC_ASSERT(ADV_32BALIGN(req_paddr) == req_paddr); - ASC_ASSERT(req_size >= sizeof(ADV_SCSI_REQ_Q)); + BUG_ON(req_paddr & 31); + BUG_ON(req_size < sizeof(ADV_SCSI_REQ_Q)); /* Wait for assertion before making little-endian */ req_paddr = cpu_to_le32(req_paddr); @@ -13991,8 +13900,6 @@ static int AdvExeScsiQueue(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq) le32_to_cpu(new_carrp->carr_pa)); } - DvcLeaveCritical(last_int_level); - return ADV_SUCCESS; } @@ -14024,7 +13931,7 @@ static int AdvResetSB(ADV_DVC_VAR *asc_dvc) * The hold time delay is done on the host because the RISC has no * microsecond accurate timer. */ - DvcDelayMicroSecond(asc_dvc, (ushort)ASC_SCSI_RESET_HOLD_TIME_US); + udelay(ASC_SCSI_RESET_HOLD_TIME_US); /* * Send the SCSI Bus Reset end idle command which de-asserts @@ -14035,7 +13942,7 @@ static int AdvResetSB(ADV_DVC_VAR *asc_dvc) return status; } - DvcSleepMilliSecond((ADV_DCNT)asc_dvc->scsi_reset_wait * 1000); + mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ return status; } @@ -14086,7 +13993,7 @@ static int AdvResetChipAndSB(ADV_DVC_VAR *asc_dvc) */ AdvWriteWordRegister(iop_base, IOPW_RISC_CSR, ADV_RISC_CSR_STOP); AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, ADV_CTRL_REG_CMD_RESET); - DvcSleepMilliSecond(100); + mdelay(100); AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, ADV_CTRL_REG_CMD_WR_IO_REG); @@ -14158,11 +14065,8 @@ static int AdvISR(ADV_DVC_VAR *asc_dvc) ushort target_bit; ADV_CARR_T *free_carrp; ADV_VADDR irq_next_vpa; - int flags; ADV_SCSI_REQ_Q *scsiq; - flags = DvcEnterCritical(); - iop_base = asc_dvc->iop_base; /* Reading the register clears the interrupt. */ @@ -14170,7 +14074,6 @@ static int AdvISR(ADV_DVC_VAR *asc_dvc) if ((int_stat & (ADV_INTR_STATUS_INTRA | ADV_INTR_STATUS_INTRB | ADV_INTR_STATUS_INTRC)) == 0) { - DvcLeaveCritical(flags); return ADV_FALSE; } @@ -14243,7 +14146,6 @@ static int AdvISR(ADV_DVC_VAR *asc_dvc) asc_dvc->carr_freelist = free_carrp; asc_dvc->carr_pending_cnt--; - ASC_ASSERT(scsiq != NULL); target_bit = ADV_TID_TO_TIDMASK(scsiq->target_id); /* @@ -14264,18 +14166,7 @@ static int AdvISR(ADV_DVC_VAR *asc_dvc) * Fall through and continue processing other completed * requests... */ - - /* - * Disable interrupts again in case the driver inadvertently - * enabled interrupts in its callback function. - * - * The DvcEnterCritical() return value is ignored, because - * the 'flags' saved when AdvISR() was first entered will be - * used to restore the interrupt flag on exit. - */ - (void)DvcEnterCritical(); } - DvcLeaveCritical(flags); return ADV_TRUE; } @@ -14297,13 +14188,10 @@ static int AdvSendIdleCmd(ADV_DVC_VAR *asc_dvc, ushort idle_cmd, ADV_DCNT idle_cmd_parameter) { - ulong last_int_level; int result; ADV_DCNT i, j; AdvPortAddr iop_base; - last_int_level = DvcEnterCritical(); - iop_base = asc_dvc->iop_base; /* @@ -14343,16 +14231,13 @@ AdvSendIdleCmd(ADV_DVC_VAR *asc_dvc, for (j = 0; j < SCSI_US_PER_MSEC; j++) { AdvReadWordLram(iop_base, ASC_MC_IDLE_CMD_STATUS, result); - if (result != 0) { - DvcLeaveCritical(last_int_level); + if (result != 0) return result; - } - DvcDelayMicroSecond(asc_dvc, (ushort)1); + udelay(1); } } - ASC_ASSERT(0); /* The idle command should never timeout. */ - DvcLeaveCritical(last_int_level); + BUG(); /* The idle command should never timeout. */ return ADV_ERROR; } -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 14/22] advansys: Comment/indentation/macro cleanup 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox ` (12 preceding siblings ...) 2007-09-09 14:56 ` [PATCH 13/22] advansys: Remove some custom wrappers Matthew Wilcox @ 2007-09-09 14:56 ` Matthew Wilcox 2007-09-09 14:56 ` [PATCH 15/22] advansys: Use DRV_NAME Matthew Wilcox ` (8 subsequent siblings) 22 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 14:56 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox - Delete comments relating to the previous structure of the driver. I have no intention of honouring them ;-) - Reformat comments > 80 columns - Remove now-obsolete comments from advansys_interrupt - Change adv_get_sglist() from do {} while (1) to for (;;) - Return void from AscInitQLinkVar() - Take out a level of indentation in adv_get_sglist() - Reduce indentation level of AscAsyncFix() - Remove unused macros - Refactor AscSendScsiQueue slightly Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 379 +++++++++++++---------------------------------- 1 files changed, 101 insertions(+), 278 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 9c5d37d..e5b26a1 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -76,10 +76,6 @@ /* Enable driver tracing. */ /* #define ADVANSYS_DEBUG */ -/* - * --- Asc Library Constants and Macros - */ - #define ASC_LIB_VERSION_MAJOR 1 #define ASC_LIB_VERSION_MINOR 24 #define ASC_LIB_SERIAL_NUMBER 123 @@ -118,15 +114,10 @@ typedef unsigned char uchar; #define FALSE (0) #endif -#define EOF (-1) #define ERR (-1) #define UW_ERR (uint)(0xFFFF) #define isodd_word(val) ((((uint)val) & (uint)0x0001) != 0) -#define ASC_DVCLIB_CALL_DONE (1) -#define ASC_DVCLIB_CALL_FAILED (0) -#define ASC_DVCLIB_CALL_ERROR (-1) - #define PCI_VENDOR_ID_ASP 0x10cd #define PCI_DEVICE_ID_ASP_1200A 0x1100 #define PCI_DEVICE_ID_ASP_ABP940 0x1200 @@ -164,11 +155,10 @@ typedef unsigned char uchar; #define ASC_IS_PCMCIA (0x0008) #define ASC_IS_MCA (0x0020) #define ASC_IS_VL (0x0040) -#define ASC_ISA_PNP_PORT_ADDR (0x279) -#define ASC_ISA_PNP_PORT_WRITE (ASC_ISA_PNP_PORT_ADDR+0x800) #define ASC_IS_WIDESCSI_16 (0x0100) #define ASC_IS_WIDESCSI_32 (0x0200) #define ASC_IS_BIG_ENDIAN (0x8000) + #define ASC_CHIP_MIN_VER_VL (0x01) #define ASC_CHIP_MAX_VER_VL (0x07) #define ASC_CHIP_MIN_VER_PCI (0x09) @@ -187,16 +177,9 @@ typedef unsigned char uchar; #define ASC_CHIP_MAX_VER_EISA (0x47) #define ASC_CHIP_VER_EISA_BIT (0x40) #define ASC_CHIP_LATEST_VER_EISA ((ASC_CHIP_MIN_VER_EISA - 1) + 3) -#define ASC_MAX_LIB_SUPPORTED_ISA_CHIP_VER 0x21 -#define ASC_MAX_LIB_SUPPORTED_PCI_CHIP_VER 0x0A -#define ASC_MAX_VL_DMA_ADDR (0x07FFFFFFL) #define ASC_MAX_VL_DMA_COUNT (0x07FFFFFFL) -#define ASC_MAX_PCI_DMA_ADDR (0xFFFFFFFFL) #define ASC_MAX_PCI_DMA_COUNT (0xFFFFFFFFL) -#define ASC_MAX_ISA_DMA_ADDR (0x00FFFFFFL) #define ASC_MAX_ISA_DMA_COUNT (0x00FFFFFFL) -#define ASC_MAX_EISA_DMA_ADDR (0x07FFFFFFL) -#define ASC_MAX_EISA_DMA_COUNT (0x07FFFFFFL) #define ASC_SCSI_ID_BITS 3 #define ASC_SCSI_TIX_TYPE uchar @@ -216,24 +199,6 @@ typedef unsigned char uchar; #define ASC_MAX_CDB_LEN 12 #define ADV_MAX_CDB_LEN 16 -/* - * Inquiry SPC-2 SPI Byte 1 EVPD (Enable Vital Product Data) - * and CmdDt (Command Support Data) field bit definitions. - */ -#define ADV_INQ_RTN_VPD_AND_CMDDT 0x3 -#define ADV_INQ_RTN_CMDDT_FOR_OP_CODE 0x2 -#define ADV_INQ_RTN_VPD_FOR_PG_CODE 0x1 -#define ADV_INQ_RTN_STD_INQUIRY_DATA 0x0 - -#define ASC_SCSIDIR_NOCHK 0x00 -#define ASC_SCSIDIR_T2H 0x08 -#define ASC_SCSIDIR_H2T 0x10 -#define ASC_SCSIDIR_NODATA 0x18 -#define SCSI_ASC_NOMEDIA 0x3A -#define ASC_SRB_HOST(x) ((uchar)((uchar)(x) >> 4)) -#define ASC_SRB_TID(x) ((uchar)((uchar)(x) & (uchar)0x0F)) -#define ASC_SRB_LUN(x) ((uchar)((uint)(x) >> 13)) -#define PUT_CDB1(x) ((uchar)((uint)(x) >> 8)) #define MS_SDTR_LEN 0x03 #define MS_WDTR_LEN 0x02 @@ -417,19 +382,6 @@ typedef struct asc_sg_head { ASC_SG_LIST sg_list[ASC_MAX_SG_LIST]; } ASC_SG_HEAD; -#define ASC_MIN_SG_LIST 2 - -typedef struct asc_min_sg_head { - ushort entry_cnt; - ushort queue_cnt; - ushort entry_to_copy; - ushort res; - ASC_SG_LIST sg_list[ASC_MIN_SG_LIST]; -} ASC_MIN_SG_HEAD; - -#define QCX_SORT (0x0001) -#define QCX_COALEASE (0x0002) - typedef struct asc_scsi_q { ASC_SCSIQ_1 q1; ASC_SCSIQ_2 q2; @@ -486,34 +438,9 @@ typedef struct asc_risc_sg_list_q { ASC_SG_LIST sg_list[7]; } ASC_RISC_SG_LIST_Q; -#define ASC_EXE_SCSI_IO_MAX_IDLE_LOOP 0x1000000UL -#define ASC_EXE_SCSI_IO_MAX_WAIT_LOOP 1024 -#define ASCQ_ERR_NO_ERROR 0 -#define ASCQ_ERR_IO_NOT_FOUND 1 -#define ASCQ_ERR_LOCAL_MEM 2 -#define ASCQ_ERR_CHKSUM 3 -#define ASCQ_ERR_START_CHIP 4 -#define ASCQ_ERR_INT_TARGET_ID 5 -#define ASCQ_ERR_INT_LOCAL_MEM 6 -#define ASCQ_ERR_HALT_RISC 7 -#define ASCQ_ERR_GET_ASPI_ENTRY 8 -#define ASCQ_ERR_CLOSE_ASPI 9 -#define ASCQ_ERR_HOST_INQUIRY 0x0A -#define ASCQ_ERR_SAVED_SRB_BAD 0x0B -#define ASCQ_ERR_QCNTL_SG_LIST 0x0C #define ASCQ_ERR_Q_STATUS 0x0D -#define ASCQ_ERR_WR_SCSIQ 0x0E -#define ASCQ_ERR_PC_ADDR 0x0F -#define ASCQ_ERR_SYN_OFFSET 0x10 -#define ASCQ_ERR_SYN_XFER_TIME 0x11 -#define ASCQ_ERR_LOCK_DMA 0x12 -#define ASCQ_ERR_UNLOCK_DMA 0x13 -#define ASCQ_ERR_VDS_CHK_INSTALL 0x14 -#define ASCQ_ERR_MICRO_CODE_HALT 0x15 -#define ASCQ_ERR_SET_LRAM_ADDR 0x16 #define ASCQ_ERR_CUR_QNG 0x17 #define ASCQ_ERR_SG_Q_LINKS 0x18 -#define ASCQ_ERR_SCSIQ_PTR 0x19 #define ASCQ_ERR_ISR_RE_ENTRY 0x1A #define ASCQ_ERR_CRITICAL_RE_ENTRY 0x1B #define ASCQ_ERR_ISR_ON_CRITICAL 0x1C @@ -529,7 +456,6 @@ typedef struct asc_risc_sg_list_q { #define ASC_WARN_CMD_QNG_CONFLICT 0x0010 #define ASC_WARN_EEPROM_RECOVER 0x0020 #define ASC_WARN_CFG_MSW_RECOVER 0x0040 -#define ASC_WARN_SET_PCI_CONFIG_SPACE 0x0080 /* * Error code values are set in ASC_DVC_VAR 'err_code'. @@ -549,27 +475,21 @@ typedef struct asc_risc_sg_list_q { #define ASC_IERR_SET_SDTR 0x1000 #define ASC_IERR_RW_LRAM 0x8000 -#define ASC_DEF_IRQ_NO 10 #define ASC_MAX_IRQ_NO 15 #define ASC_MIN_IRQ_NO 10 -#define ASC_MIN_REMAIN_Q (0x02) #define ASC_DEF_MAX_TOTAL_QNG (0xF0) #define ASC_MIN_TAG_Q_PER_DVC (0x04) -#define ASC_DEF_TAG_Q_PER_DVC (0x04) -#define ASC_MIN_FREE_Q ASC_MIN_REMAIN_Q +#define ASC_MIN_FREE_Q (0x02) #define ASC_MIN_TOTAL_QNG ((ASC_MAX_SG_QUEUE)+(ASC_MIN_FREE_Q)) #define ASC_MAX_TOTAL_QNG 240 #define ASC_MAX_PCI_ULTRA_INRAM_TOTAL_QNG 16 #define ASC_MAX_PCI_ULTRA_INRAM_TAG_QNG 8 #define ASC_MAX_PCI_INRAM_TOTAL_QNG 20 #define ASC_MAX_INRAM_TAG_QNG 16 -#define ASC_IOADR_TABLE_MAX_IX 11 #define ASC_IOADR_GAP 0x10 -#define ASC_LIB_SCSIQ_WK_SP 256 #define ASC_MAX_SYN_XFER_NO 16 #define ASC_SYN_MAX_OFFSET 0x0F #define ASC_DEF_SDTR_OFFSET 0x0F -#define ASC_DEF_SDTR_INDEX 0x00 #define ASC_SDTR_ULTRA_PCI_10MB_INDEX 0x02 #define SYN_XFER_NS_0 25 #define SYN_XFER_NS_1 30 @@ -648,7 +568,6 @@ typedef struct asc_dvc_cfg { #define ASC_DEF_DVC_CNTL 0xFFFF #define ASC_DEF_CHIP_SCSI_ID 7 #define ASC_DEF_ISA_DMA_SPEED 4 -#define ASC_INIT_STATE_NULL 0x0000 #define ASC_INIT_STATE_BEG_GET_CFG 0x0001 #define ASC_INIT_STATE_END_GET_CFG 0x0002 #define ASC_INIT_STATE_BEG_SET_CFG 0x0004 @@ -740,12 +659,7 @@ typedef struct asc_cap_info_array { #define ASC_EEP_MAX_DVC_ADDR_VL 15 #define ASC_EEP_DVC_CFG_BEG 32 #define ASC_EEP_MAX_DVC_ADDR 45 -#define ASC_EEP_DEFINED_WORDS 10 -#define ASC_EEP_MAX_ADDR 63 -#define ASC_EEP_RES_WORDS 0 #define ASC_EEP_MAX_RETRY 20 -#define ASC_MAX_INIT_BUSY_RETRY 8 -#define ASC_EEP_ISA_PNP_WSIZE 16 /* * These macros keep the chip SCSI id and ISA DMA speed @@ -781,17 +695,11 @@ typedef struct asceep_config { ushort chksum; } ASCEEP_CONFIG; -#define ASC_PCI_CFG_LSW_SCSI_PARITY 0x0800 -#define ASC_PCI_CFG_LSW_BURST_MODE 0x0080 -#define ASC_PCI_CFG_LSW_INTR_ABLE 0x0020 - #define ASC_EEP_CMD_READ 0x80 #define ASC_EEP_CMD_WRITE 0x40 #define ASC_EEP_CMD_WRITE_ABLE 0x30 #define ASC_EEP_CMD_WRITE_DISABLE 0x00 #define ASC_OVERRUN_BSIZE 0x00000048UL -#define ASC_CTRL_BREAK_ONCE 0x0001 -#define ASC_CTRL_BREAK_STAY_IDLE 0x0002 #define ASCV_MSGOUT_BEG 0x0000 #define ASCV_MSGOUT_SDTR_PERIOD (ASCV_MSGOUT_BEG+3) #define ASCV_MSGOUT_SDTR_OFFSET (ASCV_MSGOUT_BEG+4) @@ -1105,7 +1013,6 @@ static int AscPutReadySgListQueue(ASC_DVC_VAR *, ASC_SCSI_Q *, uchar); static int AscSetChipSynRegAtID(PortAddr, uchar, uchar); static int AscSetRunChipSynRegAtID(PortAddr, uchar, uchar); static ushort AscInitLram(ASC_DVC_VAR *); -static ushort AscInitQLinkVar(ASC_DVC_VAR *); static int AscSetLibErrorCode(ASC_DVC_VAR *, ushort); static int AscIsrChipHalted(ASC_DVC_VAR *); static uchar _AscCopyLramScsiDoneQ(PortAddr, ushort, @@ -1131,10 +1038,6 @@ static void AscEnableIsaDma(uchar); #endif /* CONFIG_ISA */ static const char *advansys_info(struct Scsi_Host *shost); -/* - * --- Adv Library Constants and Macros - */ - #define ADV_LIB_VERSION_MAJOR 5 #define ADV_LIB_VERSION_MINOR 14 @@ -1515,10 +1418,6 @@ typedef struct adveep_38C1600_config { * EEPROM Commands */ #define ASC_EEP_CMD_DONE 0x0200 -#define ASC_EEP_CMD_DONE_ERR 0x0001 - -/* cfg_word */ -#define EEP_CFG_WORD_BIG_ENDIAN 0x8000 /* bios_ctrl */ #define BIOS_CTRL_BIOS 0x0001 @@ -1675,8 +1574,6 @@ typedef struct adveep_38C1600_config { #define ADV_CHIP_ID_BYTE 0x25 #define ADV_CHIP_ID_WORD 0x04C1 -#define ADV_SC_SCSI_BUS_RESET 0x2000 - #define ADV_INTR_ENABLE_HOST_INTR 0x01 #define ADV_INTR_ENABLE_SEL_INTR 0x02 #define ADV_INTR_ENABLE_DPR_INTR 0x04 @@ -1716,8 +1613,6 @@ typedef struct adveep_38C1600_config { #define ADV_TICKLE_B 0x02 #define ADV_TICKLE_C 0x03 -#define ADV_SCSI_CTRL_RSTOUT 0x2000 - #define AdvIsIntPending(port) \ (AdvReadWordRegister(port, IOPW_CTRL_REG) & ADV_CTRL_REG_HOST_INTR) @@ -1870,14 +1765,11 @@ typedef struct adveep_38C1600_config { */ #define INTAB 0x01 -/* a_advlib.h */ - /* * Adv Library Status Definitions */ #define ADV_TRUE 1 #define ADV_FALSE 0 -#define ADV_NOERROR 1 #define ADV_SUCCESS 1 #define ADV_BUSY 0 #define ADV_ERROR (-1) @@ -1888,7 +1780,6 @@ typedef struct adveep_38C1600_config { #define ASC_WARN_BUSRESET_ERROR 0x0001 /* SCSI Bus Reset error */ #define ASC_WARN_EEPROM_CHKSUM 0x0002 /* EEP check sum error */ #define ASC_WARN_EEPROM_TERMINATION 0x0004 /* EEP termination bad field */ -#define ASC_WARN_SET_PCI_CONFIG_SPACE 0x0080 /* PCI config space set error */ #define ASC_WARN_ERROR 0xFFFF /* ADV_ERROR return */ #define ADV_MAX_TID 15 /* max. target identifier */ @@ -2206,10 +2097,8 @@ typedef struct adv_scsi_req_q { /* * Wait loop time out values. */ -#define SCSI_WAIT_10_SEC 10UL /* 10 seconds */ #define SCSI_WAIT_100_MSEC 100UL /* 100 milliseconds */ #define SCSI_US_PER_MSEC 1000 /* microseconds per millisecond */ -#define SCSI_MS_PER_SEC 1000UL /* milliseconds per second */ #define SCSI_MAX_RETRY 10 /* retry count */ #define ADV_ASYNC_RDMA_FAILURE 0x01 /* Fatal RDMA failure. */ @@ -2443,10 +2332,6 @@ do { \ (sizeof(ADV_SG_BLOCK) * \ ((ADV_MAX_SG_LIST + (NO_OF_SG_PER_BLOCK - 1))/NO_OF_SG_PER_BLOCK)) -/* - * --- Driver Constants and Macros - */ - /* Reference Scsi_Host hostdata */ #define ASC_BOARDP(host) ((asc_board_t *) &((host)->hostdata)) @@ -2792,10 +2677,6 @@ static ASC_SG_HEAD asc_sg_head = { 0 }; static int asc_dbglvl = 3; #endif /* ADVANSYS_DEBUG */ -/* - * --- Driver Function Prototypes - */ - static int advansys_slave_configure(struct scsi_device *); static int asc_execute_scsi_cmnd(struct scsi_cmnd *); static int asc_build_req(asc_board_t *, struct scsi_cmnd *); @@ -3359,17 +3240,9 @@ static struct scsi_host_template advansys_template = { }; /* - * --- Miscellaneous Driver Functions - */ - -/* * First-level interrupt handler. * - * 'dev_id' is a pointer to the interrupting adapter's asc_board_t. Because - * all boards are currently checked for interrupts on each interrupt, 'dev_id' - * is not referenced. 'dev_id' could be used to identify an interrupt passed - * to the AdvanSys driver which is for a device sharing an interrupt with - * an AdvanSys adapter. + * 'dev_id' is a pointer to the interrupting adapter's Scsi_Host. */ static irqreturn_t advansys_interrupt(int irq, void *dev_id) { @@ -3381,9 +3254,6 @@ static irqreturn_t advansys_interrupt(int irq, void *dev_id) ASC_DBG1(2, "advansys_interrupt: boardp 0x%p\n", boardp); spin_lock_irqsave(&boardp->lock, flags); if (ASC_NARROW_BOARD(boardp)) { - /* - * Narrow Board - */ if (AscIsIntPending(shost->io_port)) { result = IRQ_HANDLED; ASC_STATS(shost, interrupt); @@ -3391,23 +3261,14 @@ static irqreturn_t advansys_interrupt(int irq, void *dev_id) AscISR(&boardp->dvc_var.asc_dvc_var); } } else { - /* - * Wide Board - */ ASC_DBG(1, "advansys_interrupt: before AdvISR()\n"); if (AdvISR(&boardp->dvc_var.adv_dvc_var)) { result = IRQ_HANDLED; ASC_STATS(shost, interrupt); } } - spin_unlock_irqrestore(&boardp->lock, flags); - /* - * If interrupts were enabled on entry, then they - * are now enabled here. - */ - ASC_DBG(1, "advansys_interrupt: end\n"); return result; } @@ -4110,7 +3971,7 @@ adv_get_sglist(asc_board_t *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, prev_sg_block = NULL; reqp->sgblkp = NULL; - do { + for (;;) { /* * Allocate a 'adv_sgblk_t' structure from the board free * list. One 'adv_sgblk_t' structure holds NO_OF_SG_PER_BLOCK @@ -4121,8 +3982,8 @@ adv_get_sglist(asc_board_t *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, ASC_STATS(scp->device->host, adv_build_nosg); /* - * Allocation failed. Free 'adv_sgblk_t' structures already - * allocated for the request. + * Allocation failed. Free 'adv_sgblk_t' structures + * already allocated for the request. */ while ((sgblkp = reqp->sgblkp) != NULL) { /* Remove 'sgblkp' from the request list. */ @@ -4133,52 +3994,50 @@ adv_get_sglist(asc_board_t *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, boardp->adv_sgblkp = sgblkp; } return ASC_BUSY; - } else { - /* Complete 'adv_sgblk_t' board allocation. */ - boardp->adv_sgblkp = sgblkp->next_sgblkp; - sgblkp->next_sgblkp = NULL; + } + + /* Complete 'adv_sgblk_t' board allocation. */ + boardp->adv_sgblkp = sgblkp->next_sgblkp; + sgblkp->next_sgblkp = NULL; + + /* + * Get 8 byte aligned virtual and physical addresses + * for the allocated ADV_SG_BLOCK structure. + */ + sg_block = (ADV_SG_BLOCK *)ADV_8BALIGN(&sgblkp->sg_block); + sg_block_paddr = virt_to_bus(sg_block); + + /* + * Check if this is the first 'adv_sgblk_t' for the + * request. + */ + if (reqp->sgblkp == NULL) { + /* Request's first scatter-gather block. */ + reqp->sgblkp = sgblkp; /* - * Get 8 byte aligned virtual and physical addresses for - * the allocated ADV_SG_BLOCK structure. + * Set ADV_SCSI_REQ_T ADV_SG_BLOCK virtual and physical + * address pointers. */ - sg_block = - (ADV_SG_BLOCK *)ADV_8BALIGN(&sgblkp->sg_block); - sg_block_paddr = virt_to_bus(sg_block); + scsiqp->sg_list_ptr = sg_block; + scsiqp->sg_real_addr = cpu_to_le32(sg_block_paddr); + } else { + /* Request's second or later scatter-gather block. */ + sgblkp->next_sgblkp = reqp->sgblkp; + reqp->sgblkp = sgblkp; /* - * Check if this is the first 'adv_sgblk_t' for the request. + * Point the previous ADV_SG_BLOCK structure to + * the newly allocated ADV_SG_BLOCK structure. */ - if (reqp->sgblkp == NULL) { - /* Request's first scatter-gather block. */ - reqp->sgblkp = sgblkp; - - /* - * Set ADV_SCSI_REQ_T ADV_SG_BLOCK virtual and physical - * address pointers. - */ - scsiqp->sg_list_ptr = sg_block; - scsiqp->sg_real_addr = - cpu_to_le32(sg_block_paddr); - } else { - /* Request's second or later scatter-gather block. */ - sgblkp->next_sgblkp = reqp->sgblkp; - reqp->sgblkp = sgblkp; - - /* - * Point the previous ADV_SG_BLOCK structure to - * the newly allocated ADV_SG_BLOCK structure. - */ - prev_sg_block->sg_ptr = - cpu_to_le32(sg_block_paddr); - } + prev_sg_block->sg_ptr = cpu_to_le32(sg_block_paddr); } for (i = 0; i < NO_OF_SG_PER_BLOCK; i++) { sg_block->sg_list[i].sg_addr = - cpu_to_le32(sg_dma_address(slp)); + cpu_to_le32(sg_dma_address(slp)); sg_block->sg_list[i].sg_count = - cpu_to_le32(sg_dma_len(slp)); + cpu_to_le32(sg_dma_len(slp)); ASC_STATS_ADD(scp->device->host, sg_xfer, ASC_CEILING(sg_dma_len(slp), 512)); @@ -4192,8 +4051,6 @@ adv_get_sglist(asc_board_t *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, sg_block->sg_cnt = NO_OF_SG_PER_BLOCK; prev_sg_block = sg_block; } - while (1); - /* NOTREACHED */ } /* @@ -4264,14 +4121,16 @@ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) ASC_DBG_PRT_SENSE(2, scp->sense_buffer, sizeof(scp->sense_buffer)); /* - * Note: The 'status_byte()' macro used by target drivers - * defined in scsi.h shifts the status byte returned by - * host drivers right by 1 bit. This is why target drivers - * also use right shifted status byte definitions. For - * instance target drivers use CHECK_CONDITION, defined to - * 0x1, instead of the SCSI defined check condition value - * of 0x2. Host drivers are supposed to return the status - * byte as it is defined by SCSI. + * Note: The 'status_byte()' macro used by + * target drivers defined in scsi.h shifts the + * status byte returned by host drivers right + * by 1 bit. This is why target drivers also + * use right shifted status byte definitions. + * For instance target drivers use + * CHECK_CONDITION, defined to 0x1, instead of + * the SCSI defined check condition value of + * 0x2. Host drivers are supposed to return + * the status byte as it is defined by SCSI. */ scp->result = DRIVER_BYTE(DRIVER_SENSE) | STATUS_BYTE(qdonep->d3.scsi_stat); @@ -4411,14 +4270,16 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) ASC_DBG_PRT_SENSE(2, scp->sense_buffer, sizeof(scp->sense_buffer)); /* - * Note: The 'status_byte()' macro used by target drivers - * defined in scsi.h shifts the status byte returned by - * host drivers right by 1 bit. This is why target drivers - * also use right shifted status byte definitions. For - * instance target drivers use CHECK_CONDITION, defined to - * 0x1, instead of the SCSI defined check condition value - * of 0x2. Host drivers are supposed to return the status - * byte as it is defined by SCSI. + * Note: The 'status_byte()' macro used by + * target drivers defined in scsi.h shifts the + * status byte returned by host drivers right + * by 1 bit. This is why target drivers also + * use right shifted status byte definitions. + * For instance target drivers use + * CHECK_CONDITION, defined to 0x1, instead of + * the SCSI defined check condition value of + * 0x2. Host drivers are supposed to return + * the status byte as it is defined by SCSI. */ scp->result = DRIVER_BYTE(DRIVER_SENSE) | STATUS_BYTE(scsiqp->scsi_status); @@ -5719,10 +5580,6 @@ static int asc_prt_line(char *buf, int buflen, char *fmt, ...) #endif /* CONFIG_PROC_FS */ /* - * --- Functions Required by the Asc Library - */ - -/* * void * DvcPutScsiQ(PortAddr iop_base, ushort s_addr, uchar *outbuf, int words) * @@ -5815,10 +5672,6 @@ AscGetChipBiosAddress(PortAddr iop_base, unsigned short bus_type) } /* - * --- Functions Required by the Adv Library - */ - -/* * DvcGetPhyAddr() * * Return the physical address of 'vaddr' and set '*lenp' to the @@ -5845,10 +5698,6 @@ DvcGetPhyAddr(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq, return paddr; } -/* - * --- Tracing and Debugging Functions - */ - #ifdef ADVANSYS_STATS #ifdef CONFIG_PROC_FS /* @@ -6322,10 +6171,6 @@ static void asc_prt_hex(char *f, uchar *s, int l) } #endif /* ADVANSYS_DEBUG */ -/* - * --- Asc Library Functions - */ - static ushort __devinit AscGetEisaChipCfg(PortAddr iop_base) { PortAddr eisa_cfg_iop; @@ -6537,8 +6382,7 @@ static int AscIsrChipHalted(ASC_DVC_VAR *asc_dvc) target_ix = AscReadLramByte(iop_base, (ushort)(halt_q_addr + (ushort)ASC_SCSIQ_B_TARGET_IX)); - q_cntl = - AscReadLramByte(iop_base, + q_cntl = AscReadLramByte(iop_base, (ushort)(halt_q_addr + (ushort)ASC_SCSIQ_B_CNTL)); tid_no = ASC_TIX_TO_TID(target_ix); target_id = (uchar)ASC_TID_TO_TARGET_ID(tid_no); @@ -6562,7 +6406,6 @@ static int AscIsrChipHalted(ASC_DVC_VAR *asc_dvc) AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); return (0); } else if (int_halt_code == ASC_HALT_EXTMSG_IN) { - AscMemWordCopyPtrFromLram(iop_base, ASCV_MSGIN_BEG, (uchar *)&ext_msg, @@ -6793,9 +6636,9 @@ static int AscIsrChipHalted(ASC_DVC_VAR *asc_dvc) cur_dvc_qng); /* - * Set the device queue depth to the number of - * active requests when the QUEUE FULL condition - * was encountered. + * Set the device queue depth to the + * number of active requests when the + * QUEUE FULL condition was encountered. */ boardp->queue_full |= target_id; boardp->queue_full_cnt[tid_no] = @@ -6821,9 +6664,8 @@ static int AscIsrChipHalted(ASC_DVC_VAR *asc_dvc) int i; q_no = AscReadLramByte(iop_base, (ushort)ASCV_REQ_SG_LIST_QP); - if (q_no == ASC_QLINK_END) { - return (0); - } + if (q_no == ASC_QLINK_END) + return 0; q_addr = ASC_QNO_TO_QADDR(q_no); @@ -6875,8 +6717,8 @@ static int AscIsrChipHalted(ASC_DVC_VAR *asc_dvc) sg_entry_cnt = ASC_MAX_SG_LIST - 1; /* - * Keep track of remaining number of SG elements that will - * need to be handled on the next interrupt. + * Keep track of remaining number of SG elements that + * will need to be handled on the next interrupt. */ scsiq->remain_sg_entry_cnt -= (ASC_MAX_SG_LIST - 1); } else { @@ -7723,36 +7565,28 @@ AscSendScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar n_q_required) sta = 0; free_q_head = (uchar)AscGetVarFreeQHead(iop_base); if (n_q_required > 1) { - if ((next_qp = AscAllocMultipleFreeQueue(iop_base, - free_q_head, (uchar) - (n_q_required))) - != (uchar)ASC_QLINK_END) { + next_qp = AscAllocMultipleFreeQueue(iop_base, free_q_head, + (uchar)n_q_required); + if (next_qp != ASC_QLINK_END) { asc_dvc->last_q_shortage = 0; scsiq->sg_head->queue_cnt = n_q_required - 1; scsiq->q1.q_no = free_q_head; - if ((sta = AscPutReadySgListQueue(asc_dvc, scsiq, - free_q_head)) == 1) { - AscPutVarFreeQHead(iop_base, next_qp); - asc_dvc->cur_total_qng += (uchar)(n_q_required); - asc_dvc->cur_dvc_qng[tid_no]++; - } - return (sta); + sta = AscPutReadySgListQueue(asc_dvc, scsiq, + free_q_head); } } else if (n_q_required == 1) { - if ((next_qp = AscAllocFreeQueue(iop_base, - free_q_head)) != - ASC_QLINK_END) { + next_qp = AscAllocFreeQueue(iop_base, free_q_head); + if (next_qp != ASC_QLINK_END) { scsiq->q1.q_no = free_q_head; - if ((sta = AscPutReadyQueue(asc_dvc, scsiq, - free_q_head)) == 1) { - AscPutVarFreeQHead(iop_base, next_qp); - asc_dvc->cur_total_qng++; - asc_dvc->cur_dvc_qng[tid_no]++; - } - return (sta); + sta = AscPutReadyQueue(asc_dvc, scsiq, free_q_head); } } - return (sta); + if (sta == 1) { + AscPutVarFreeQHead(iop_base, next_qp); + asc_dvc->cur_total_qng += (uchar)(n_q_required); + asc_dvc->cur_dvc_qng[tid_no]++; + } + return sta; } static int AscSgListToQueue(int sg_list) @@ -8072,7 +7906,7 @@ static ushort AscInitLram(ASC_DVC_VAR *asc_dvc) return (warn_code); } -static ushort AscInitQLinkVar(ASC_DVC_VAR *asc_dvc) +static void AscInitQLinkVar(ASC_DVC_VAR *asc_dvc) { PortAddr iop_base; int i; @@ -8099,7 +7933,6 @@ static ushort AscInitQLinkVar(ASC_DVC_VAR *asc_dvc) for (i = 0; i < 32; i++, lram_addr += 2) { AscWriteLramWord(iop_base, lram_addr, 0); } - return (0); } static int AscSetLibErrorCode(ASC_DVC_VAR *asc_dvc, ushort err_code) @@ -8396,10 +8229,10 @@ static int AscResetChipAndScsiBus(ASC_DVC_VAR *asc_dvc) static ASC_DCNT __devinit AscGetMaxDmaCount(ushort bus_type) { if (bus_type & ASC_IS_ISA) - return (ASC_MAX_ISA_DMA_COUNT); + return ASC_MAX_ISA_DMA_COUNT; else if (bus_type & (ASC_IS_EISA | ASC_IS_VL)) - return (ASC_MAX_VL_DMA_COUNT); - return (ASC_MAX_PCI_DMA_COUNT); + return ASC_MAX_VL_DMA_COUNT; + return ASC_MAX_PCI_DMA_COUNT; } #ifdef CONFIG_ISA @@ -9262,26 +9095,22 @@ static void AscAsyncFix(ASC_DVC_VAR *asc_dvc, struct scsi_device *sdev) char type = sdev->type; ASC_SCSI_BIT_ID_TYPE tid_bits = 1 << sdev->id; - if (asc_dvc->bug_fix_cntl & ASC_BUG_FIX_ASYN_USE_SYN) { - if (!(asc_dvc->init_sdtr & tid_bits)) { - if ((type == TYPE_ROM) && - (strncmp(sdev->vendor, "HP ", 3) == 0)) { - asc_dvc->pci_fix_asyn_xfer_always |= tid_bits; - } - asc_dvc->pci_fix_asyn_xfer |= tid_bits; - if ((type == TYPE_PROCESSOR) || - (type == TYPE_SCANNER) || (type == TYPE_ROM) || - (type == TYPE_TAPE)) { - asc_dvc->pci_fix_asyn_xfer &= ~tid_bits; - } + if (!(asc_dvc->bug_fix_cntl & ASC_BUG_FIX_ASYN_USE_SYN)) + return; + if (asc_dvc->init_sdtr & tid_bits) + return; + + if ((type == TYPE_ROM) && (strncmp(sdev->vendor, "HP ", 3) == 0)) + asc_dvc->pci_fix_asyn_xfer_always |= tid_bits; + + asc_dvc->pci_fix_asyn_xfer |= tid_bits; + if ((type == TYPE_PROCESSOR) || (type == TYPE_SCANNER) || + (type == TYPE_ROM) || (type == TYPE_TAPE)) + asc_dvc->pci_fix_asyn_xfer &= ~tid_bits; - if (asc_dvc->pci_fix_asyn_xfer & tid_bits) { - AscSetRunChipSynRegAtID(asc_dvc->iop_base, - sdev->id, + if (asc_dvc->pci_fix_asyn_xfer & tid_bits) + AscSetRunChipSynRegAtID(asc_dvc->iop_base, sdev->id, ASYN_SDTR_DATA_FIX_PCI_REV_AB); - } - } - } } static uchar AscReadLramByte(PortAddr iop_base, ushort addr) @@ -9443,12 +9272,6 @@ AscMemWordSetLram(PortAddr iop_base, ushort s_addr, ushort set_wval, int words) return; } -/* - * --- Adv Library Functions - */ - -/* a_mcode.h */ - /* Microcode buffer is kept after initialization for error recovery. */ static unsigned char _adv_asc3550_buf[] = { 0x00, 0x00, 0x00, 0xf2, 0x00, 0xf0, 0x00, 0x16, 0x18, 0xe4, 0x00, 0xfc, @@ -13773,7 +13596,6 @@ AdvSet38C1600EEPConfig(AdvPortAddr iop_base, ADVEEP_38C1600_CONFIG *cfg_buf) return; } -/* a_advlib.c */ /* * AdvExeScsiQueue() - Send a request to the RISC microcode program. * @@ -14198,7 +14020,6 @@ AdvSendIdleCmd(ADV_DVC_VAR *asc_dvc, * Clear the idle command status which is set by the microcode * to a non-zero value to indicate when the command is completed. * The non-zero result is one of the IDLE_CMD_STATUS_* values - * defined in a_advlib.h. */ AdvWriteWordLram(iop_base, ASC_MC_IDLE_CMD_STATUS, (ushort)0); @@ -14921,6 +14742,8 @@ static int advansys_release(struct Scsi_Host *shost) return 0; } +#define ASC_IOADR_TABLE_MAX_IX 11 + static PortAddr _asc_def_iop_base[ASC_IOADR_TABLE_MAX_IX] __devinitdata = { 0x100, 0x0110, 0x120, 0x0130, 0x140, 0x0150, 0x0190, 0x0210, 0x0230, 0x0250, 0x0330 -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 15/22] advansys: Use DRV_NAME 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox ` (13 preceding siblings ...) 2007-09-09 14:56 ` [PATCH 14/22] advansys: Comment/indentation/macro cleanup Matthew Wilcox @ 2007-09-09 14:56 ` Matthew Wilcox 2007-09-09 14:56 ` [PATCH 16/22] advansys: Eliminate prototypes Matthew Wilcox ` (7 subsequent siblings) 22 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 14:56 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox Follow the example of some other drivers by defining DRV_NAME to be "advansys". Prevents spelling mistakes. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 23 ++++++++++++----------- 1 files changed, 12 insertions(+), 11 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index e5b26a1..0303fc7 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -1,3 +1,4 @@ +#define DRV_NAME "advansys" #define ASC_VERSION "3.4" /* AdvanSys Driver Version */ /* @@ -3213,11 +3214,11 @@ advansys_biosparam(struct scsi_device *sdev, struct block_device *bdev, } static struct scsi_host_template advansys_template = { - .proc_name = "advansys", + .proc_name = DRV_NAME, #ifdef CONFIG_PROC_FS .proc_info = advansys_proc_info, #endif - .name = "advansys", + .name = DRV_NAME, .info = advansys_info, .queuecommand = advansys_queuecommand, .eh_bus_reset_handler = advansys_reset, @@ -14634,7 +14635,7 @@ advansys_board_found(int iop, struct device *dev, int bus_type) /* Register DMA channel for ISA bus. */ if (asc_dvc_varp->bus_type & ASC_IS_ISA) { shost->dma_channel = asc_dvc_varp->cfg->isa_dma_channel; - ret = request_dma(shost->dma_channel, "advansys"); + ret = request_dma(shost->dma_channel, DRV_NAME); if (ret) { ASC_PRINT3 ("advansys_board_found: board %d: request_dma() %d failed %d\n", @@ -14650,7 +14651,7 @@ advansys_board_found(int iop, struct device *dev, int bus_type) ASC_DBG1(2, "advansys_board_found: request_irq() %d\n", shost->irq); ret = request_irq(shost->irq, advansys_interrupt, share_irq, - "advansys", shost); + DRV_NAME, shost); if (ret) { if (ret == -EBUSY) { @@ -14754,7 +14755,7 @@ static int __devinit advansys_isa_probe(struct device *dev, unsigned int id) PortAddr iop_base = _asc_def_iop_base[id]; struct Scsi_Host *shost; - if (!request_region(iop_base, ASC_IOADR_GAP, "advansys")) { + if (!request_region(iop_base, ASC_IOADR_GAP, DRV_NAME)) { ASC_DBG1(1, "advansys_isa_match: I/O port 0x%x busy\n", iop_base); return -ENODEV; @@ -14790,7 +14791,7 @@ static struct isa_driver advansys_isa_driver = { .remove = __devexit_p(advansys_isa_remove), .driver = { .owner = THIS_MODULE, - .name = "advansys", + .name = DRV_NAME, }, }; @@ -14799,7 +14800,7 @@ static int __devinit advansys_vlb_probe(struct device *dev, unsigned int id) PortAddr iop_base = _asc_def_iop_base[id]; struct Scsi_Host *shost; - if (!request_region(iop_base, ASC_IOADR_GAP, "advansys")) { + if (!request_region(iop_base, ASC_IOADR_GAP, DRV_NAME)) { ASC_DBG1(1, "advansys_vlb_match: I/O port 0x%x busy\n", iop_base); return -ENODEV; @@ -14867,7 +14868,7 @@ static int __devinit advansys_eisa_probe(struct device *dev) err = -ENODEV; for (i = 0; i < 2; i++, ioport += 0x20) { - if (!request_region(ioport, ASC_IOADR_GAP, "advansys")) { + if (!request_region(ioport, ASC_IOADR_GAP, DRV_NAME)) { printk(KERN_WARNING "Region %x-%x busy\n", ioport, ioport + ASC_IOADR_GAP - 1); continue; @@ -14925,7 +14926,7 @@ static __devexit int advansys_eisa_remove(struct device *dev) static struct eisa_driver advansys_eisa_driver = { .id_table = advansys_eisa_table, .driver = { - .name = "advansys", + .name = DRV_NAME, .probe = advansys_eisa_probe, .remove = __devexit_p(advansys_eisa_remove), } @@ -14972,7 +14973,7 @@ advansys_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) err = pci_enable_device(pdev); if (err) goto fail; - err = pci_request_regions(pdev, "advansys"); + err = pci_request_regions(pdev, DRV_NAME); if (err) goto disable_device; pci_set_master(pdev); @@ -15007,7 +15008,7 @@ static void __devexit advansys_pci_remove(struct pci_dev *pdev) } static struct pci_driver advansys_pci_driver = { - .name = "advansys", + .name = DRV_NAME, .id_table = advansys_pci_tbl, .probe = advansys_pci_probe, .remove = __devexit_p(advansys_pci_remove), -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 16/22] advansys: Eliminate prototypes 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox ` (14 preceding siblings ...) 2007-09-09 14:56 ` [PATCH 15/22] advansys: Use DRV_NAME Matthew Wilcox @ 2007-09-09 14:56 ` Matthew Wilcox 2007-09-09 15:29 ` Jeff Garzik 2007-09-15 14:39 ` James Bottomley 2007-09-09 14:56 ` [PATCH 17/22] advansys: Remove array of scsi targets Matthew Wilcox ` (6 subsequent siblings) 22 siblings, 2 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 14:56 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox Rearrange a lot of the functions in the file to get rid of all the forward declarations. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c |12277 +++++++++++++++++++++++------------------------ 1 files changed, 6047 insertions(+), 6230 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 0303fc7..01c8571 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -878,7 +878,6 @@ typedef struct asceep_config { #define ASC_1000_ID0W_FIX 0x00C1 #define ASC_1000_ID1B 0x25 #define ASC_EISA_REV_IOP_MASK (0x0C83) -#define ASC_EISA_PID_IOP_MASK (0x0C80) #define ASC_EISA_CFG_IOP_MASK (0x0C86) #define ASC_GET_EISA_SLOT(iop) (PortAddr)((iop) & 0xF000) #define INS_HALTINT (ushort)0x6281 @@ -903,10 +902,10 @@ typedef struct asc_mc_saved { #define AscGetRiscVarDoneQTail(port) AscReadLramByte((port), ASCV_DONENEXT_B) #define AscPutRiscVarFreeQHead(port, val) AscWriteLramByte((port), ASCV_NEXTRDY_B, val) #define AscPutRiscVarDoneQTail(port, val) AscWriteLramByte((port), ASCV_DONENEXT_B, val) -#define AscPutMCodeSDTRDoneAtID(port, id, data) AscWriteLramByte((port), (ushort)((ushort)ASCV_SDTR_DONE_BEG+(ushort)id), (data)); -#define AscGetMCodeSDTRDoneAtID(port, id) AscReadLramByte((port), (ushort)((ushort)ASCV_SDTR_DONE_BEG+(ushort)id)); -#define AscPutMCodeInitSDTRAtID(port, id, data) AscWriteLramByte((port), (ushort)((ushort)ASCV_SDTR_DATA_BEG+(ushort)id), data); -#define AscGetMCodeInitSDTRAtID(port, id) AscReadLramByte((port), (ushort)((ushort)ASCV_SDTR_DATA_BEG+(ushort)id)); +#define AscPutMCodeSDTRDoneAtID(port, id, data) AscWriteLramByte((port), (ushort)((ushort)ASCV_SDTR_DONE_BEG+(ushort)id), (data)) +#define AscGetMCodeSDTRDoneAtID(port, id) AscReadLramByte((port), (ushort)((ushort)ASCV_SDTR_DONE_BEG+(ushort)id)) +#define AscPutMCodeInitSDTRAtID(port, id, data) AscWriteLramByte((port), (ushort)((ushort)ASCV_SDTR_DATA_BEG+(ushort)id), data) +#define AscGetMCodeInitSDTRAtID(port, id) AscReadLramByte((port), (ushort)((ushort)ASCV_SDTR_DATA_BEG+(ushort)id)) #define AscSynIndexToPeriod(index) (uchar)(asc_dvc->sdtr_period_tbl[ (index) ]) #define AscGetChipSignatureByte(port) (uchar)inp((port)+IOP_SIG_BYTE) #define AscGetChipSignatureWord(port) (ushort)inpw((port)+IOP_SIG_WORD) @@ -962,83 +961,6 @@ typedef struct asc_mc_saved { #define AscReadChipDvcID(port) (uchar)inp((port)+IOP_REG_ID) #define AscWriteChipDvcID(port, data) outp((port)+IOP_REG_ID, data) -static int AscWriteEEPCmdReg(PortAddr iop_base, uchar cmd_reg); -static int AscWriteEEPDataReg(PortAddr iop_base, ushort data_reg); -static void AscWaitEEPRead(void); -static void AscWaitEEPWrite(void); -static ushort AscReadEEPWord(PortAddr, uchar); -static ushort AscWriteEEPWord(PortAddr, uchar, ushort); -static ushort AscGetEEPConfig(PortAddr, ASCEEP_CONFIG *, ushort); -static int AscSetEEPConfigOnce(PortAddr, ASCEEP_CONFIG *, ushort); -static int AscSetEEPConfig(PortAddr, ASCEEP_CONFIG *, ushort); -static int AscStartChip(PortAddr); -static int AscStopChip(PortAddr); -static void AscSetChipIH(PortAddr, ushort); -static int AscIsChipHalted(PortAddr); -static void AscAckInterrupt(PortAddr); -static void AscDisableInterrupt(PortAddr); -static void AscEnableInterrupt(PortAddr); -static void AscSetBank(PortAddr, uchar); -static int AscResetChipAndScsiBus(ASC_DVC_VAR *); -#ifdef CONFIG_ISA -static uchar AscGetIsaDmaSpeed(PortAddr); -#endif /* CONFIG_ISA */ -static uchar AscReadLramByte(PortAddr, ushort); -static ushort AscReadLramWord(PortAddr, ushort); -#if CC_VERY_LONG_SG_LIST -static ASC_DCNT AscReadLramDWord(PortAddr, ushort); -#endif /* CC_VERY_LONG_SG_LIST */ -static void AscWriteLramWord(PortAddr, ushort, ushort); -static void AscWriteLramByte(PortAddr, ushort, uchar); -static ASC_DCNT AscMemSumLramWord(PortAddr, ushort, int); -static void AscMemWordSetLram(PortAddr, ushort, ushort, int); -static void AscMemWordCopyPtrToLram(PortAddr, ushort, uchar *, int); -static void AscMemDWordCopyPtrToLram(PortAddr, ushort, uchar *, int); -static void AscMemWordCopyPtrFromLram(PortAddr, ushort, uchar *, int); -static ushort AscInitAscDvcVar(ASC_DVC_VAR *); -static ushort AscInitFromEEP(ASC_DVC_VAR *); -static ushort AscInitMicroCodeVar(ASC_DVC_VAR *); -static int AscTestExternalLram(ASC_DVC_VAR *); -static uchar AscMsgOutSDTR(ASC_DVC_VAR *, uchar, uchar); -static uchar AscCalSDTRData(ASC_DVC_VAR *, uchar, uchar); -static void AscSetChipSDTR(PortAddr, uchar, uchar); -static uchar AscGetSynPeriodIndex(ASC_DVC_VAR *, uchar); -static uchar AscAllocFreeQueue(PortAddr, uchar); -static uchar AscAllocMultipleFreeQueue(PortAddr, uchar, uchar); -static int AscHostReqRiscHalt(PortAddr); -static int AscStopQueueExe(PortAddr); -static int AscSendScsiQueue(ASC_DVC_VAR *, - ASC_SCSI_Q *scsiq, uchar n_q_required); -static int AscPutReadyQueue(ASC_DVC_VAR *, ASC_SCSI_Q *, uchar); -static int AscPutReadySgListQueue(ASC_DVC_VAR *, ASC_SCSI_Q *, uchar); -static int AscSetChipSynRegAtID(PortAddr, uchar, uchar); -static int AscSetRunChipSynRegAtID(PortAddr, uchar, uchar); -static ushort AscInitLram(ASC_DVC_VAR *); -static int AscSetLibErrorCode(ASC_DVC_VAR *, ushort); -static int AscIsrChipHalted(ASC_DVC_VAR *); -static uchar _AscCopyLramScsiDoneQ(PortAddr, ushort, - ASC_QDONE_INFO *, ASC_DCNT); -static int AscIsrQDone(ASC_DVC_VAR *); -#ifdef CONFIG_ISA -static ushort AscGetEisaChipCfg(PortAddr); -#endif /* CONFIG_ISA */ -static uchar AscGetChipScsiCtrl(PortAddr); -static uchar AscGetChipVersion(PortAddr, ushort); -static ASC_DCNT AscLoadMicroCode(PortAddr, ushort, uchar *, ushort); -static void AscToggleIRQAct(PortAddr); -static void DvcPutScsiQ(PortAddr, ushort, uchar *, int); -static void DvcGetQinfo(PortAddr, ushort, uchar *, int); -static ushort AscInitAsc1000Driver(ASC_DVC_VAR *); -static void AscAsyncFix(ASC_DVC_VAR *, struct scsi_device *); -static int AscExeScsiQueue(ASC_DVC_VAR *, ASC_SCSI_Q *); -static int AscISR(ASC_DVC_VAR *); -static uint AscGetNumOfFreeQueue(ASC_DVC_VAR *, uchar, uchar); -static int AscSgListToQueue(int); -#ifdef CONFIG_ISA -static void AscEnableIsaDma(uchar); -#endif /* CONFIG_ISA */ -static const char *advansys_info(struct Scsi_Host *shost); - #define ADV_LIB_VERSION_MAJOR 5 #define ADV_LIB_VERSION_MINOR 14 @@ -2109,36 +2031,6 @@ typedef struct adv_scsi_req_q { #define ADV_HOST_SCSI_BUS_RESET 0x80 /* Host Initiated SCSI Bus Reset. */ -static ADV_PADDR DvcGetPhyAddr(ADV_DVC_VAR *, ADV_SCSI_REQ_Q *, - uchar *, ASC_SDCNT *, int); - -/* - * Adv Library functions available to drivers. - */ -static int AdvExeScsiQueue(ADV_DVC_VAR *, ADV_SCSI_REQ_Q *); -static int AdvISR(ADV_DVC_VAR *); -static int AdvInitAsc3550Driver(ADV_DVC_VAR *); -static int AdvInitAsc38C0800Driver(ADV_DVC_VAR *); -static int AdvInitAsc38C1600Driver(ADV_DVC_VAR *); -static int AdvResetChipAndSB(ADV_DVC_VAR *); -static int AdvResetSB(ADV_DVC_VAR *asc_dvc); - -/* - * Internal Adv Library functions. - */ -static int AdvSendIdleCmd(ADV_DVC_VAR *, ushort, ADV_DCNT); -static int AdvInitFrom3550EEP(ADV_DVC_VAR *); -static int AdvInitFrom38C0800EEP(ADV_DVC_VAR *); -static int AdvInitFrom38C1600EEP(ADV_DVC_VAR *); -static ushort AdvGet3550EEPConfig(AdvPortAddr, ADVEEP_3550_CONFIG *); -static void AdvSet3550EEPConfig(AdvPortAddr, ADVEEP_3550_CONFIG *); -static ushort AdvGet38C0800EEPConfig(AdvPortAddr, ADVEEP_38C0800_CONFIG *); -static void AdvSet38C0800EEPConfig(AdvPortAddr, ADVEEP_38C0800_CONFIG *); -static ushort AdvGet38C1600EEPConfig(AdvPortAddr, ADVEEP_38C1600_CONFIG *); -static void AdvSet38C1600EEPConfig(AdvPortAddr, ADVEEP_38C1600_CONFIG *); -static void AdvWaitEEPCmd(AdvPortAddr); -static ushort AdvReadEEPWord(AdvPortAddr, int); - /* Read byte from a register. */ #define AdvReadByteRegister(iop_base, reg_off) \ (ADV_MEM_READB((iop_base) + (reg_off))) @@ -2676,1717 +2568,489 @@ static ASC_SG_HEAD asc_sg_head = { 0 }; #ifdef ADVANSYS_DEBUG static int asc_dbglvl = 3; -#endif /* ADVANSYS_DEBUG */ - -static int advansys_slave_configure(struct scsi_device *); -static int asc_execute_scsi_cmnd(struct scsi_cmnd *); -static int asc_build_req(asc_board_t *, struct scsi_cmnd *); -static int adv_build_req(asc_board_t *, struct scsi_cmnd *, ADV_SCSI_REQ_Q **); -static int adv_get_sglist(asc_board_t *, adv_req_t *, struct scsi_cmnd *, int); -#ifdef CONFIG_PROC_FS -static int asc_proc_copy(off_t, off_t, char *, int, char *, int); -static int asc_prt_board_devices(struct Scsi_Host *, char *, int); -static int asc_prt_adv_bios(struct Scsi_Host *, char *, int); -static int asc_get_eeprom_string(ushort *serialnum, uchar *cp); -static int asc_prt_asc_board_eeprom(struct Scsi_Host *, char *, int); -static int asc_prt_adv_board_eeprom(struct Scsi_Host *, char *, int); -static int asc_prt_driver_conf(struct Scsi_Host *, char *, int); -static int asc_prt_asc_board_info(struct Scsi_Host *, char *, int); -static int asc_prt_adv_board_info(struct Scsi_Host *, char *, int); -static int asc_prt_line(char *, int, char *fmt, ...); -#endif /* CONFIG_PROC_FS */ - -/* Statistics function prototypes. */ -#ifdef ADVANSYS_STATS -#ifdef CONFIG_PROC_FS -static int asc_prt_board_stats(struct Scsi_Host *, char *, int); -#endif /* CONFIG_PROC_FS */ -#endif /* ADVANSYS_STATS */ - -/* Debug function prototypes. */ -#ifdef ADVANSYS_DEBUG -static void asc_prt_scsi_host(struct Scsi_Host *); -static void asc_prt_scsi_cmnd(struct scsi_cmnd *); -static void asc_prt_asc_dvc_cfg(ASC_DVC_CFG *); -static void asc_prt_asc_dvc_var(ASC_DVC_VAR *); -static void asc_prt_asc_scsi_q(ASC_SCSI_Q *); -static void asc_prt_asc_qdone_info(ASC_QDONE_INFO *); -static void asc_prt_adv_dvc_cfg(ADV_DVC_CFG *); -static void asc_prt_adv_dvc_var(ADV_DVC_VAR *); -static void asc_prt_adv_scsi_req_q(ADV_SCSI_REQ_Q *); -static void asc_prt_adv_sgblock(int, ADV_SG_BLOCK *); -static void asc_prt_hex(char *f, uchar *, int); -#endif /* ADVANSYS_DEBUG */ -#ifdef CONFIG_PROC_FS /* - * advansys_proc_info() - /proc/scsi/advansys/{0,1,2,3,...} - * - * *buffer: I/O buffer - * **start: if inout == FALSE pointer into buffer where user read should start - * offset: current offset into a /proc/scsi/advansys/[0...] file - * length: length of buffer - * hostno: Scsi_Host host_no - * inout: TRUE - user is writing; FALSE - user is reading - * - * Return the number of bytes read from or written to a - * /proc/scsi/advansys/[0...] file. - * - * Note: This function uses the per board buffer 'prtbuf' which is - * allocated when the board is initialized in advansys_detect(). The - * buffer is ASC_PRTBUF_SIZE bytes. The function asc_proc_copy() is - * used to write to the buffer. The way asc_proc_copy() is written - * if 'prtbuf' is too small it will not be overwritten. Instead the - * user just won't get all the available statistics. + * asc_prt_scsi_host() */ -static int -advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, - off_t offset, int length, int inout) +static void asc_prt_scsi_host(struct Scsi_Host *s) { asc_board_t *boardp; - char *cp; - int cplen; - int cnt; - int totcnt; - int leftlen; - char *curbuf; - off_t advoffset; - - ASC_DBG(1, "advansys_proc_info: begin\n"); - - /* - * User write not supported. - */ - if (inout == TRUE) { - return (-ENOSYS); - } - - /* - * User read of /proc/scsi/advansys/[0...] file. - */ - boardp = ASC_BOARDP(shost); - - /* Copy read data starting at the beginning of the buffer. */ - *start = buffer; - curbuf = buffer; - advoffset = 0; - totcnt = 0; - leftlen = length; - - /* - * Get board configuration information. - * - * advansys_info() returns the board string from its own static buffer. - */ - cp = (char *)advansys_info(shost); - strcat(cp, "\n"); - cplen = strlen(cp); - /* Copy board information. */ - cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); - totcnt += cnt; - leftlen -= cnt; - if (leftlen == 0) { - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; - - /* - * Display Wide Board BIOS Information. - */ - if (ASC_WIDE_BOARD(boardp)) { - cp = boardp->prtbuf; - cplen = asc_prt_adv_bios(shost, cp, ASC_PRTBUF_SIZE); - BUG_ON(cplen >= ASC_PRTBUF_SIZE); - cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, - cplen); - totcnt += cnt; - leftlen -= cnt; - if (leftlen == 0) { - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; - } + boardp = ASC_BOARDP(s); - /* - * Display driver information for each device attached to the board. - */ - cp = boardp->prtbuf; - cplen = asc_prt_board_devices(shost, cp, ASC_PRTBUF_SIZE); - BUG_ON(cplen >= ASC_PRTBUF_SIZE); - cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); - totcnt += cnt; - leftlen -= cnt; - if (leftlen == 0) { - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; + printk("Scsi_Host at addr 0x%lx\n", (ulong)s); + printk(" host_busy %u, host_no %d, last_reset %d,\n", + s->host_busy, s->host_no, (unsigned)s->last_reset); - /* - * Display EEPROM configuration for the board. - */ - cp = boardp->prtbuf; - if (ASC_NARROW_BOARD(boardp)) { - cplen = asc_prt_asc_board_eeprom(shost, cp, ASC_PRTBUF_SIZE); - } else { - cplen = asc_prt_adv_board_eeprom(shost, cp, ASC_PRTBUF_SIZE); - } - BUG_ON(cplen >= ASC_PRTBUF_SIZE); - cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); - totcnt += cnt; - leftlen -= cnt; - if (leftlen == 0) { - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; + printk(" base 0x%lx, io_port 0x%lx, irq 0x%x,\n", + (ulong)s->base, (ulong)s->io_port, s->irq); - /* - * Display driver configuration and information for the board. - */ - cp = boardp->prtbuf; - cplen = asc_prt_driver_conf(shost, cp, ASC_PRTBUF_SIZE); - BUG_ON(cplen >= ASC_PRTBUF_SIZE); - cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); - totcnt += cnt; - leftlen -= cnt; - if (leftlen == 0) { - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; + printk(" dma_channel %d, this_id %d, can_queue %d,\n", + s->dma_channel, s->this_id, s->can_queue); -#ifdef ADVANSYS_STATS - /* - * Display driver statistics for the board. - */ - cp = boardp->prtbuf; - cplen = asc_prt_board_stats(shost, cp, ASC_PRTBUF_SIZE); - BUG_ON(cplen >= ASC_PRTBUF_SIZE); - cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); - totcnt += cnt; - leftlen -= cnt; - if (leftlen == 0) { - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; -#endif /* ADVANSYS_STATS */ + printk(" cmd_per_lun %d, sg_tablesize %d, unchecked_isa_dma %d\n", + s->cmd_per_lun, s->sg_tablesize, s->unchecked_isa_dma); - /* - * Display Asc Library dynamic configuration information - * for the board. - */ - cp = boardp->prtbuf; if (ASC_NARROW_BOARD(boardp)) { - cplen = asc_prt_asc_board_info(shost, cp, ASC_PRTBUF_SIZE); + asc_prt_asc_dvc_var(&ASC_BOARDP(s)->dvc_var.asc_dvc_var); + asc_prt_asc_dvc_cfg(&ASC_BOARDP(s)->dvc_cfg.asc_dvc_cfg); } else { - cplen = asc_prt_adv_board_info(shost, cp, ASC_PRTBUF_SIZE); - } - BUG_ON(cplen >= ASC_PRTBUF_SIZE); - cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); - totcnt += cnt; - leftlen -= cnt; - if (leftlen == 0) { - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); - return totcnt; + asc_prt_adv_dvc_var(&ASC_BOARDP(s)->dvc_var.adv_dvc_var); + asc_prt_adv_dvc_cfg(&ASC_BOARDP(s)->dvc_cfg.adv_dvc_cfg); } - advoffset += cplen; - curbuf += cnt; - - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); - - return totcnt; } -#endif /* CONFIG_PROC_FS */ /* - * advansys_info() - * - * Return suitable for printing on the console with the argument - * adapter's configuration information. - * - * Note: The information line should not exceed ASC_INFO_SIZE bytes, - * otherwise the static 'info' array will be overrun. + * asc_prt_scsi_cmnd() */ -static const char *advansys_info(struct Scsi_Host *shost) -{ - static char info[ASC_INFO_SIZE]; - asc_board_t *boardp; - ASC_DVC_VAR *asc_dvc_varp; - ADV_DVC_VAR *adv_dvc_varp; - char *busname; - char *widename = NULL; - - boardp = ASC_BOARDP(shost); - if (ASC_NARROW_BOARD(boardp)) { - asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; - ASC_DBG(1, "advansys_info: begin\n"); - if (asc_dvc_varp->bus_type & ASC_IS_ISA) { - if ((asc_dvc_varp->bus_type & ASC_IS_ISAPNP) == - ASC_IS_ISAPNP) { - busname = "ISA PnP"; - } else { - busname = "ISA"; - } - sprintf(info, - "AdvanSys SCSI %s: %s: IO 0x%lX-0x%lX, IRQ 0x%X, DMA 0x%X", - ASC_VERSION, busname, - (ulong)shost->io_port, - (ulong)shost->io_port + ASC_IOADR_GAP - 1, - shost->irq, shost->dma_channel); - } else { - if (asc_dvc_varp->bus_type & ASC_IS_VL) { - busname = "VL"; - } else if (asc_dvc_varp->bus_type & ASC_IS_EISA) { - busname = "EISA"; - } else if (asc_dvc_varp->bus_type & ASC_IS_PCI) { - if ((asc_dvc_varp->bus_type & ASC_IS_PCI_ULTRA) - == ASC_IS_PCI_ULTRA) { - busname = "PCI Ultra"; - } else { - busname = "PCI"; - } - } else { - busname = "?"; - ASC_PRINT2("advansys_info: board %d: unknown " - "bus type %d\n", boardp->id, - asc_dvc_varp->bus_type); - } - sprintf(info, - "AdvanSys SCSI %s: %s: IO 0x%lX-0x%lX, IRQ 0x%X", - ASC_VERSION, busname, (ulong)shost->io_port, - (ulong)shost->io_port + ASC_IOADR_GAP - 1, - shost->irq); - } - } else { - /* - * Wide Adapter Information - * - * Memory-mapped I/O is used instead of I/O space to access - * the adapter, but display the I/O Port range. The Memory - * I/O address is displayed through the driver /proc file. - */ - adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; - if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { - widename = "Ultra-Wide"; - } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) { - widename = "Ultra2-Wide"; - } else { - widename = "Ultra3-Wide"; - } - sprintf(info, - "AdvanSys SCSI %s: PCI %s: PCIMEM 0x%lX-0x%lX, IRQ 0x%X", - ASC_VERSION, widename, (ulong)adv_dvc_varp->iop_base, - (ulong)adv_dvc_varp->iop_base + boardp->asc_n_io_port - 1, shost->irq); - } - BUG_ON(strlen(info) >= ASC_INFO_SIZE); - ASC_DBG(1, "advansys_info: end\n"); - return info; -} - -static void asc_scsi_done(struct scsi_cmnd *scp) +static void asc_prt_scsi_cmnd(struct scsi_cmnd *s) { - struct asc_board *boardp = ASC_BOARDP(scp->device->host); + printk("struct scsi_cmnd at addr 0x%lx\n", (ulong)s); - if (scp->use_sg) - dma_unmap_sg(boardp->dev, - (struct scatterlist *)scp->request_buffer, - scp->use_sg, scp->sc_data_direction); - else if (scp->request_bufflen) - dma_unmap_single(boardp->dev, scp->SCp.dma_handle, - scp->request_bufflen, scp->sc_data_direction); + printk(" host 0x%lx, device 0x%lx, target %u, lun %u, channel %u,\n", + (ulong)s->device->host, (ulong)s->device, s->device->id, + s->device->lun, s->device->channel); - ASC_STATS(scp->device->host, done); + asc_prt_hex(" CDB", s->cmnd, s->cmd_len); - scp->scsi_done(scp); -} + printk("sc_data_direction %u, resid %d\n", + s->sc_data_direction, s->resid); -/* - * advansys_queuecommand() - interrupt-driven I/O entrypoint. - * - * This function always returns 0. Command return status is saved - * in the 'scp' result field. - */ -static int -advansys_queuecommand(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd *)) -{ - struct Scsi_Host *shost = scp->device->host; - asc_board_t *boardp = ASC_BOARDP(shost); - unsigned long flags; - int asc_res, result = 0; + printk(" use_sg %u, sglist_len %u\n", s->use_sg, s->sglist_len); - ASC_STATS(shost, queuecommand); - scp->scsi_done = done; + printk(" serial_number 0x%x, retries %d, allowed %d\n", + (unsigned)s->serial_number, s->retries, s->allowed); - /* - * host_lock taken by mid-level prior to call, but need - * to protect against own ISR - */ - spin_lock_irqsave(&boardp->lock, flags); - asc_res = asc_execute_scsi_cmnd(scp); - spin_unlock_irqrestore(&boardp->lock, flags); + printk(" timeout_per_command %d\n", s->timeout_per_command); - switch (asc_res) { - case ASC_NOERROR: - break; - case ASC_BUSY: - result = SCSI_MLQUEUE_HOST_BUSY; - break; - case ASC_ERROR: - default: - asc_scsi_done(scp); - break; - } + printk(" scsi_done 0x%p, done 0x%p, host_scribble 0x%p, result 0x%x\n", + s->scsi_done, s->done, s->host_scribble, s->result); - return result; + printk(" tag %u, pid %u\n", (unsigned)s->tag, (unsigned)s->pid); } /* - * advansys_reset() - * - * Reset the bus associated with the command 'scp'. - * - * This function runs its own thread. Interrupts must be blocked but - * sleeping is allowed and no locking other than for host structures is - * required. Returns SUCCESS or FAILED. + * asc_prt_asc_dvc_var() */ -static int advansys_reset(struct scsi_cmnd *scp) +static void asc_prt_asc_dvc_var(ASC_DVC_VAR *h) { - struct Scsi_Host *shost; - asc_board_t *boardp; - ASC_DVC_VAR *asc_dvc_varp; - ADV_DVC_VAR *adv_dvc_varp; - ulong flags; - int status; - int ret = SUCCESS; - - ASC_DBG1(1, "advansys_reset: 0x%lx\n", (ulong)scp); - -#ifdef ADVANSYS_STATS - if (scp->device->host != NULL) { - ASC_STATS(scp->device->host, reset); - } -#endif /* ADVANSYS_STATS */ - - if ((shost = scp->device->host) == NULL) { - scp->result = HOST_BYTE(DID_ERROR); - return FAILED; - } - - boardp = ASC_BOARDP(shost); - - ASC_PRINT1("advansys_reset: board %d: SCSI bus reset started...\n", - boardp->id); - /* - * Check for re-entrancy. - */ - spin_lock_irqsave(&boardp->lock, flags); - if (boardp->flags & ASC_HOST_IN_RESET) { - spin_unlock_irqrestore(&boardp->lock, flags); - return FAILED; - } - boardp->flags |= ASC_HOST_IN_RESET; - spin_unlock_irqrestore(&boardp->lock, flags); - - if (ASC_NARROW_BOARD(boardp)) { - /* - * Narrow Board - */ - asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; - - /* - * Reset the chip and SCSI bus. - */ - ASC_DBG(1, "advansys_reset: before AscInitAsc1000Driver()\n"); - status = AscInitAsc1000Driver(asc_dvc_varp); - - /* Refer to ASC_IERR_* defintions for meaning of 'err_code'. */ - if (asc_dvc_varp->err_code) { - ASC_PRINT2("advansys_reset: board %d: SCSI bus reset " - "error: 0x%x\n", boardp->id, - asc_dvc_varp->err_code); - ret = FAILED; - } else if (status) { - ASC_PRINT2("advansys_reset: board %d: SCSI bus reset " - "warning: 0x%x\n", boardp->id, status); - } else { - ASC_PRINT1("advansys_reset: board %d: SCSI bus reset " - "successful.\n", boardp->id); - } - - ASC_DBG(1, "advansys_reset: after AscInitAsc1000Driver()\n"); - spin_lock_irqsave(&boardp->lock, flags); - - } else { - /* - * Wide Board - * - * If the suggest reset bus flags are set, then reset the bus. - * Otherwise only reset the device. - */ - adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; + printk("ASC_DVC_VAR at addr 0x%lx\n", (ulong)h); - /* - * Reset the target's SCSI bus. - */ - ASC_DBG(1, "advansys_reset: before AdvResetChipAndSB()\n"); - switch (AdvResetChipAndSB(adv_dvc_varp)) { - case ASC_TRUE: - ASC_PRINT1("advansys_reset: board %d: SCSI bus reset " - "successful.\n", boardp->id); - break; - case ASC_FALSE: - default: - ASC_PRINT1("advansys_reset: board %d: SCSI bus reset " - "error.\n", boardp->id); - ret = FAILED; - break; - } - spin_lock_irqsave(&boardp->lock, flags); - (void)AdvISR(adv_dvc_varp); - } - /* Board lock is held. */ + printk(" iop_base 0x%x, err_code 0x%x, dvc_cntl 0x%x, bug_fix_cntl " + "%d,\n", h->iop_base, h->err_code, h->dvc_cntl, h->bug_fix_cntl); - /* Save the time of the most recently completed reset. */ - boardp->last_reset = jiffies; + printk(" bus_type %d, init_sdtr 0x%x,\n", h->bus_type, + (unsigned)h->init_sdtr); - /* Clear reset flag. */ - boardp->flags &= ~ASC_HOST_IN_RESET; - spin_unlock_irqrestore(&boardp->lock, flags); + printk(" sdtr_done 0x%x, use_tagged_qng 0x%x, unit_not_ready 0x%x, " + "chip_no 0x%x,\n", (unsigned)h->sdtr_done, + (unsigned)h->use_tagged_qng, (unsigned)h->unit_not_ready, + (unsigned)h->chip_no); - ASC_DBG1(1, "advansys_reset: ret %d\n", ret); + printk(" queue_full_or_busy 0x%x, start_motor 0x%x, scsi_reset_wait " + "%u,\n", (unsigned)h->queue_full_or_busy, + (unsigned)h->start_motor, (unsigned)h->scsi_reset_wait); - return ret; -} + printk(" is_in_int %u, max_total_qng %u, cur_total_qng %u, " + "in_critical_cnt %u,\n", (unsigned)h->is_in_int, + (unsigned)h->max_total_qng, (unsigned)h->cur_total_qng, + (unsigned)h->in_critical_cnt); -/* - * advansys_biosparam() - * - * Translate disk drive geometry if the "BIOS greater than 1 GB" - * support is enabled for a drive. - * - * ip (information pointer) is an int array with the following definition: - * ip[0]: heads - * ip[1]: sectors - * ip[2]: cylinders - */ -static int -advansys_biosparam(struct scsi_device *sdev, struct block_device *bdev, - sector_t capacity, int ip[]) -{ - asc_board_t *boardp; + printk(" last_q_shortage %u, init_state 0x%x, no_scam 0x%x, " + "pci_fix_asyn_xfer 0x%x,\n", (unsigned)h->last_q_shortage, + (unsigned)h->init_state, (unsigned)h->no_scam, + (unsigned)h->pci_fix_asyn_xfer); - ASC_DBG(1, "advansys_biosparam: begin\n"); - ASC_STATS(sdev->host, biosparam); - boardp = ASC_BOARDP(sdev->host); - if (ASC_NARROW_BOARD(boardp)) { - if ((boardp->dvc_var.asc_dvc_var.dvc_cntl & - ASC_CNTL_BIOS_GT_1GB) && capacity > 0x200000) { - ip[0] = 255; - ip[1] = 63; - } else { - ip[0] = 64; - ip[1] = 32; - } - } else { - if ((boardp->dvc_var.adv_dvc_var.bios_ctrl & - BIOS_CTRL_EXTENDED_XLAT) && capacity > 0x200000) { - ip[0] = 255; - ip[1] = 63; - } else { - ip[0] = 64; - ip[1] = 32; - } - } - ip[2] = (unsigned long)capacity / (ip[0] * ip[1]); - ASC_DBG(1, "advansys_biosparam: end\n"); - return 0; + printk(" cfg 0x%lx, irq_no 0x%x\n", (ulong)h->cfg, (unsigned)h->irq_no); } -static struct scsi_host_template advansys_template = { - .proc_name = DRV_NAME, -#ifdef CONFIG_PROC_FS - .proc_info = advansys_proc_info, -#endif - .name = DRV_NAME, - .info = advansys_info, - .queuecommand = advansys_queuecommand, - .eh_bus_reset_handler = advansys_reset, - .bios_param = advansys_biosparam, - .slave_configure = advansys_slave_configure, - /* - * Because the driver may control an ISA adapter 'unchecked_isa_dma' - * must be set. The flag will be cleared in advansys_board_found - * for non-ISA adapters. - */ - .unchecked_isa_dma = 1, - /* - * All adapters controlled by this driver are capable of large - * scatter-gather lists. According to the mid-level SCSI documentation - * this obviates any performance gain provided by setting - * 'use_clustering'. But empirically while CPU utilization is increased - * by enabling clustering, I/O throughput increases as well. - */ - .use_clustering = ENABLE_CLUSTERING, -}; - /* - * First-level interrupt handler. - * - * 'dev_id' is a pointer to the interrupting adapter's Scsi_Host. + * asc_prt_asc_dvc_cfg() */ -static irqreturn_t advansys_interrupt(int irq, void *dev_id) -{ - unsigned long flags; - struct Scsi_Host *shost = dev_id; - asc_board_t *boardp = ASC_BOARDP(shost); - irqreturn_t result = IRQ_NONE; - - ASC_DBG1(2, "advansys_interrupt: boardp 0x%p\n", boardp); - spin_lock_irqsave(&boardp->lock, flags); - if (ASC_NARROW_BOARD(boardp)) { - if (AscIsIntPending(shost->io_port)) { - result = IRQ_HANDLED; - ASC_STATS(shost, interrupt); - ASC_DBG(1, "advansys_interrupt: before AscISR()\n"); - AscISR(&boardp->dvc_var.asc_dvc_var); - } - } else { - ASC_DBG(1, "advansys_interrupt: before AdvISR()\n"); - if (AdvISR(&boardp->dvc_var.adv_dvc_var)) { - result = IRQ_HANDLED; - ASC_STATS(shost, interrupt); - } - } - spin_unlock_irqrestore(&boardp->lock, flags); - - ASC_DBG(1, "advansys_interrupt: end\n"); - return result; -} - -static void -advansys_narrow_slave_configure(struct scsi_device *sdev, ASC_DVC_VAR *asc_dvc) +static void asc_prt_asc_dvc_cfg(ASC_DVC_CFG *h) { - ASC_SCSI_BIT_ID_TYPE tid_bit = 1 << sdev->id; - ASC_SCSI_BIT_ID_TYPE orig_use_tagged_qng = asc_dvc->use_tagged_qng; - - if (sdev->lun == 0) { - ASC_SCSI_BIT_ID_TYPE orig_init_sdtr = asc_dvc->init_sdtr; - if ((asc_dvc->cfg->sdtr_enable & tid_bit) && sdev->sdtr) { - asc_dvc->init_sdtr |= tid_bit; - } else { - asc_dvc->init_sdtr &= ~tid_bit; - } - - if (orig_init_sdtr != asc_dvc->init_sdtr) - AscAsyncFix(asc_dvc, sdev); - } - - if (sdev->tagged_supported) { - if (asc_dvc->cfg->cmd_qng_enabled & tid_bit) { - if (sdev->lun == 0) { - asc_dvc->cfg->can_tagged_qng |= tid_bit; - asc_dvc->use_tagged_qng |= tid_bit; - } - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, - asc_dvc->max_dvc_qng[sdev->id]); - } - } else { - if (sdev->lun == 0) { - asc_dvc->cfg->can_tagged_qng &= ~tid_bit; - asc_dvc->use_tagged_qng &= ~tid_bit; - } - scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); - } - - if ((sdev->lun == 0) && - (orig_use_tagged_qng != asc_dvc->use_tagged_qng)) { - AscWriteLramByte(asc_dvc->iop_base, ASCV_DISC_ENABLE_B, - asc_dvc->cfg->disc_enable); - AscWriteLramByte(asc_dvc->iop_base, ASCV_USE_TAGGED_QNG_B, - asc_dvc->use_tagged_qng); - AscWriteLramByte(asc_dvc->iop_base, ASCV_CAN_TAGGED_QNG_B, - asc_dvc->cfg->can_tagged_qng); + printk("ASC_DVC_CFG at addr 0x%lx\n", (ulong)h); - asc_dvc->max_dvc_qng[sdev->id] = - asc_dvc->cfg->max_tag_qng[sdev->id]; - AscWriteLramByte(asc_dvc->iop_base, - (ushort)(ASCV_MAX_DVC_QNG_BEG + sdev->id), - asc_dvc->max_dvc_qng[sdev->id]); - } -} + printk(" can_tagged_qng 0x%x, cmd_qng_enabled 0x%x,\n", + h->can_tagged_qng, h->cmd_qng_enabled); + printk(" disc_enable 0x%x, sdtr_enable 0x%x,\n", + h->disc_enable, h->sdtr_enable); -/* - * Wide Transfers - * - * If the EEPROM enabled WDTR for the device and the device supports wide - * bus (16 bit) transfers, then turn on the device's 'wdtr_able' bit and - * write the new value to the microcode. - */ -static void -advansys_wide_enable_wdtr(AdvPortAddr iop_base, unsigned short tidmask) -{ - unsigned short cfg_word; - AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, cfg_word); - if ((cfg_word & tidmask) != 0) - return; + printk + (" chip_scsi_id %d, isa_dma_speed %d, isa_dma_channel %d, chip_version %d,\n", + h->chip_scsi_id, h->isa_dma_speed, h->isa_dma_channel, + h->chip_version); - cfg_word |= tidmask; - AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, cfg_word); + printk + (" pci_device_id %d, lib_serial_no %u, lib_version %u, mcode_date 0x%x,\n", + to_pci_dev(h->dev)->device, h->lib_serial_no, h->lib_version, + h->mcode_date); - /* - * Clear the microcode SDTR and WDTR negotiation done indicators for - * the target to cause it to negotiate with the new setting set above. - * WDTR when accepted causes the target to enter asynchronous mode, so - * SDTR must be negotiated. - */ - AdvReadWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); - cfg_word &= ~tidmask; - AdvWriteWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); - AdvReadWordLram(iop_base, ASC_MC_WDTR_DONE, cfg_word); - cfg_word &= ~tidmask; - AdvWriteWordLram(iop_base, ASC_MC_WDTR_DONE, cfg_word); + printk(" mcode_version %d, overrun_buf 0x%lx\n", + h->mcode_version, (ulong)h->overrun_buf); } /* - * Synchronous Transfers - * - * If the EEPROM enabled SDTR for the device and the device - * supports synchronous transfers, then turn on the device's - * 'sdtr_able' bit. Write the new value to the microcode. + * asc_prt_asc_scsi_q() */ -static void -advansys_wide_enable_sdtr(AdvPortAddr iop_base, unsigned short tidmask) +static void asc_prt_asc_scsi_q(ASC_SCSI_Q *q) { - unsigned short cfg_word; - AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, cfg_word); - if ((cfg_word & tidmask) != 0) - return; - - cfg_word |= tidmask; - AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, cfg_word); - - /* - * Clear the microcode "SDTR negotiation" done indicator for the - * target to cause it to negotiate with the new setting set above. - */ - AdvReadWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); - cfg_word &= ~tidmask; - AdvWriteWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); -} + ASC_SG_HEAD *sgp; + int i; -/* - * PPR (Parallel Protocol Request) Capable - * - * If the device supports DT mode, then it must be PPR capable. - * The PPR message will be used in place of the SDTR and WDTR - * messages to negotiate synchronous speed and offset, transfer - * width, and protocol options. - */ -static void advansys_wide_enable_ppr(ADV_DVC_VAR *adv_dvc, - AdvPortAddr iop_base, unsigned short tidmask) -{ - AdvReadWordLram(iop_base, ASC_MC_PPR_ABLE, adv_dvc->ppr_able); - adv_dvc->ppr_able |= tidmask; - AdvWriteWordLram(iop_base, ASC_MC_PPR_ABLE, adv_dvc->ppr_able); -} + printk("ASC_SCSI_Q at addr 0x%lx\n", (ulong)q); -static void -advansys_wide_slave_configure(struct scsi_device *sdev, ADV_DVC_VAR *adv_dvc) -{ - AdvPortAddr iop_base = adv_dvc->iop_base; - unsigned short tidmask = 1 << sdev->id; + printk + (" target_ix 0x%x, target_lun %u, srb_ptr 0x%lx, tag_code 0x%x,\n", + q->q2.target_ix, q->q1.target_lun, (ulong)q->q2.srb_ptr, + q->q2.tag_code); - if (sdev->lun == 0) { - /* - * Handle WDTR, SDTR, and Tag Queuing. If the feature - * is enabled in the EEPROM and the device supports the - * feature, then enable it in the microcode. - */ + printk + (" data_addr 0x%lx, data_cnt %lu, sense_addr 0x%lx, sense_len %u,\n", + (ulong)le32_to_cpu(q->q1.data_addr), + (ulong)le32_to_cpu(q->q1.data_cnt), + (ulong)le32_to_cpu(q->q1.sense_addr), q->q1.sense_len); - if ((adv_dvc->wdtr_able & tidmask) && sdev->wdtr) - advansys_wide_enable_wdtr(iop_base, tidmask); - if ((adv_dvc->sdtr_able & tidmask) && sdev->sdtr) - advansys_wide_enable_sdtr(iop_base, tidmask); - if (adv_dvc->chip_type == ADV_CHIP_ASC38C1600 && sdev->ppr) - advansys_wide_enable_ppr(adv_dvc, iop_base, tidmask); + printk(" cdbptr 0x%lx, cdb_len %u, sg_head 0x%lx, sg_queue_cnt %u\n", + (ulong)q->cdbptr, q->q2.cdb_len, + (ulong)q->sg_head, q->q1.sg_queue_cnt); - /* - * Tag Queuing is disabled for the BIOS which runs in polled - * mode and would see no benefit from Tag Queuing. Also by - * disabling Tag Queuing in the BIOS devices with Tag Queuing - * bugs will at least work with the BIOS. - */ - if ((adv_dvc->tagqng_able & tidmask) && - sdev->tagged_supported) { - unsigned short cfg_word; - AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, cfg_word); - cfg_word |= tidmask; - AdvWriteWordLram(iop_base, ASC_MC_TAGQNG_ABLE, - cfg_word); - AdvWriteByteLram(iop_base, - ASC_MC_NUMBER_OF_MAX_CMD + sdev->id, - adv_dvc->max_dvc_qng); + if (q->sg_head) { + sgp = q->sg_head; + printk("ASC_SG_HEAD at addr 0x%lx\n", (ulong)sgp); + printk(" entry_cnt %u, queue_cnt %u\n", sgp->entry_cnt, + sgp->queue_cnt); + for (i = 0; i < sgp->entry_cnt; i++) { + printk(" [%u]: addr 0x%lx, bytes %lu\n", + i, (ulong)le32_to_cpu(sgp->sg_list[i].addr), + (ulong)le32_to_cpu(sgp->sg_list[i].bytes)); } - } - if ((adv_dvc->tagqng_able & tidmask) && sdev->tagged_supported) { - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, - adv_dvc->max_dvc_qng); - } else { - scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); } } /* - * Set the number of commands to queue per device for the - * specified host adapter. + * asc_prt_asc_qdone_info() */ -static int advansys_slave_configure(struct scsi_device *sdev) +static void asc_prt_asc_qdone_info(ASC_QDONE_INFO *q) { - asc_board_t *boardp = ASC_BOARDP(sdev->host); - boardp->flags |= ASC_SELECT_QUEUE_DEPTHS; - - /* - * Save a pointer to the sdev and set its initial/maximum - * queue depth. Only save the pointer for a lun0 dev though. - */ - if (sdev->lun == 0) - boardp->device[sdev->id] = sdev; - - if (ASC_NARROW_BOARD(boardp)) - advansys_narrow_slave_configure(sdev, - &boardp->dvc_var.asc_dvc_var); - else - advansys_wide_slave_configure(sdev, - &boardp->dvc_var.adv_dvc_var); - - return 0; + printk("ASC_QDONE_INFO at addr 0x%lx\n", (ulong)q); + printk(" srb_ptr 0x%lx, target_ix %u, cdb_len %u, tag_code %u,\n", + (ulong)q->d2.srb_ptr, q->d2.target_ix, q->d2.cdb_len, + q->d2.tag_code); + printk + (" done_stat 0x%x, host_stat 0x%x, scsi_stat 0x%x, scsi_msg 0x%x\n", + q->d3.done_stat, q->d3.host_stat, q->d3.scsi_stat, q->d3.scsi_msg); } /* - * Execute a single 'Scsi_Cmnd'. - * - * The function 'done' is called when the request has been completed. - * - * Scsi_Cmnd: - * - * host - board controlling device - * device - device to send command - * target - target of device - * lun - lun of device - * cmd_len - length of SCSI CDB - * cmnd - buffer for SCSI 8, 10, or 12 byte CDB - * use_sg - if non-zero indicates scatter-gather request with use_sg elements - * - * if (use_sg == 0) { - * request_buffer - buffer address for request - * request_bufflen - length of request buffer - * } else { - * request_buffer - pointer to scatterlist structure - * } - * - * sense_buffer - sense command buffer - * - * result (4 bytes of an int): - * Byte Meaning - * 0 SCSI Status Byte Code - * 1 SCSI One Byte Message Code - * 2 Host Error Code - * 3 Mid-Level Error Code - * - * host driver fields: - * SCp - Scsi_Pointer used for command processing status - * scsi_done - used to save caller's done function - * host_scribble - used for pointer to another struct scsi_cmnd - * - * If this function returns ASC_NOERROR the request will be completed - * from the interrupt handler. - * - * If this function returns ASC_ERROR the host error code has been set, - * and the called must call asc_scsi_done. + * asc_prt_adv_dvc_var() * - * If ASC_BUSY is returned the request will be returned to the midlayer - * and re-tried later. + * Display an ADV_DVC_VAR structure. */ -static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) +static void asc_prt_adv_dvc_var(ADV_DVC_VAR *h) { - asc_board_t *boardp; - ASC_DVC_VAR *asc_dvc_varp; - ADV_DVC_VAR *adv_dvc_varp; - ADV_SCSI_REQ_Q *adv_scsiqp; - struct scsi_device *device; - int ret; - - ASC_DBG2(1, "asc_execute_scsi_cmnd: scp 0x%lx, done 0x%lx\n", - (ulong)scp, (ulong)scp->scsi_done); - - boardp = ASC_BOARDP(scp->device->host); - device = boardp->device[scp->device->id]; + printk(" ADV_DVC_VAR at addr 0x%lx\n", (ulong)h); - if (ASC_NARROW_BOARD(boardp)) { - /* - * Build and execute Narrow Board request. - */ + printk(" iop_base 0x%lx, err_code 0x%x, ultra_able 0x%x\n", + (ulong)h->iop_base, h->err_code, (unsigned)h->ultra_able); - asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; + printk(" isr_callback 0x%lx, sdtr_able 0x%x, wdtr_able 0x%x\n", + (ulong)h->isr_callback, (unsigned)h->sdtr_able, + (unsigned)h->wdtr_able); - /* - * Build Asc Library request structure using the - * global structures 'asc_scsi_req' and 'asc_sg_head'. - * - * If an error is returned, then the request has been - * queued on the board done queue. It will be completed - * by the caller. - * - * asc_build_req() can not return ASC_BUSY. - */ - if (asc_build_req(boardp, scp) == ASC_ERROR) { - ASC_STATS(scp->device->host, build_error); - return ASC_ERROR; - } + printk(" start_motor 0x%x, scsi_reset_wait 0x%x, irq_no 0x%x,\n", + (unsigned)h->start_motor, + (unsigned)h->scsi_reset_wait, (unsigned)h->irq_no); - switch (ret = AscExeScsiQueue(asc_dvc_varp, &asc_scsi_q)) { - case ASC_NOERROR: - ASC_STATS(scp->device->host, exe_noerror); - /* - * Increment monotonically increasing per device - * successful request counter. Wrapping doesn't matter. - */ - boardp->reqcnt[scp->device->id]++; - ASC_DBG(1, "asc_execute_scsi_cmnd: AscExeScsiQueue(), " - "ASC_NOERROR\n"); - break; - case ASC_BUSY: - ASC_STATS(scp->device->host, exe_busy); - break; - case ASC_ERROR: - ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " - "AscExeScsiQueue() ASC_ERROR, err_code 0x%x\n", - boardp->id, asc_dvc_varp->err_code); - ASC_STATS(scp->device->host, exe_error); - scp->result = HOST_BYTE(DID_ERROR); - break; - default: - ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " - "AscExeScsiQueue() unknown, err_code 0x%x\n", - boardp->id, asc_dvc_varp->err_code); - ASC_STATS(scp->device->host, exe_unknown); - scp->result = HOST_BYTE(DID_ERROR); - break; - } - } else { - /* - * Build and execute Wide Board request. - */ - adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; + printk(" max_host_qng %u, max_dvc_qng %u, carr_freelist 0x%lxn\n", + (unsigned)h->max_host_qng, (unsigned)h->max_dvc_qng, + (ulong)h->carr_freelist); - /* - * Build and get a pointer to an Adv Library request structure. - * - * If the request is successfully built then send it below, - * otherwise return with an error. - */ - switch (adv_build_req(boardp, scp, &adv_scsiqp)) { - case ASC_NOERROR: - ASC_DBG(3, "asc_execute_scsi_cmnd: adv_build_req " - "ASC_NOERROR\n"); - break; - case ASC_BUSY: - ASC_DBG(1, "asc_execute_scsi_cmnd: adv_build_req " - "ASC_BUSY\n"); - /* - * The asc_stats fields 'adv_build_noreq' and - * 'adv_build_nosg' count wide board busy conditions. - * They are updated in adv_build_req and - * adv_get_sglist, respectively. - */ - return ASC_BUSY; - case ASC_ERROR: - default: - ASC_DBG(1, "asc_execute_scsi_cmnd: adv_build_req " - "ASC_ERROR\n"); - ASC_STATS(scp->device->host, build_error); - return ASC_ERROR; - } + printk(" icq_sp 0x%lx, irq_sp 0x%lx\n", + (ulong)h->icq_sp, (ulong)h->irq_sp); - switch (ret = AdvExeScsiQueue(adv_dvc_varp, adv_scsiqp)) { - case ASC_NOERROR: - ASC_STATS(scp->device->host, exe_noerror); - /* - * Increment monotonically increasing per device - * successful request counter. Wrapping doesn't matter. - */ - boardp->reqcnt[scp->device->id]++; - ASC_DBG(1, "asc_execute_scsi_cmnd: AdvExeScsiQueue(), " - "ASC_NOERROR\n"); - break; - case ASC_BUSY: - ASC_STATS(scp->device->host, exe_busy); - break; - case ASC_ERROR: - ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " - "AdvExeScsiQueue() ASC_ERROR, err_code 0x%x\n", - boardp->id, adv_dvc_varp->err_code); - ASC_STATS(scp->device->host, exe_error); - scp->result = HOST_BYTE(DID_ERROR); - break; - default: - ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " - "AdvExeScsiQueue() unknown, err_code 0x%x\n", - boardp->id, adv_dvc_varp->err_code); - ASC_STATS(scp->device->host, exe_unknown); - scp->result = HOST_BYTE(DID_ERROR); - break; - } - } + printk(" no_scam 0x%x, tagqng_able 0x%x\n", + (unsigned)h->no_scam, (unsigned)h->tagqng_able); - ASC_DBG(1, "asc_execute_scsi_cmnd: end\n"); - return ret; + printk(" chip_scsi_id 0x%x, cfg 0x%lx\n", + (unsigned)h->chip_scsi_id, (ulong)h->cfg); } /* - * Build a request structure for the Asc Library (Narrow Board). - * - * The global structures 'asc_scsi_q' and 'asc_sg_head' are - * used to build the request. + * asc_prt_adv_dvc_cfg() * - * If an error occurs, then return ASC_ERROR. + * Display an ADV_DVC_CFG structure. */ -static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp) +static void asc_prt_adv_dvc_cfg(ADV_DVC_CFG *h) { - /* - * Mutually exclusive access is required to 'asc_scsi_q' and - * 'asc_sg_head' until after the request is started. - */ - memset(&asc_scsi_q, 0, sizeof(ASC_SCSI_Q)); - - /* - * Point the ASC_SCSI_Q to the 'struct scsi_cmnd'. - */ - asc_scsi_q.q2.srb_ptr = ASC_VADDR_TO_U32(scp); - - /* - * Build the ASC_SCSI_Q request. - */ - asc_scsi_q.cdbptr = &scp->cmnd[0]; - asc_scsi_q.q2.cdb_len = scp->cmd_len; - asc_scsi_q.q1.target_id = ASC_TID_TO_TARGET_ID(scp->device->id); - asc_scsi_q.q1.target_lun = scp->device->lun; - asc_scsi_q.q2.target_ix = - ASC_TIDLUN_TO_IX(scp->device->id, scp->device->lun); - asc_scsi_q.q1.sense_addr = - cpu_to_le32(virt_to_bus(&scp->sense_buffer[0])); - asc_scsi_q.q1.sense_len = sizeof(scp->sense_buffer); - - /* - * If there are any outstanding requests for the current target, - * then every 255th request send an ORDERED request. This heuristic - * tries to retain the benefit of request sorting while preventing - * request starvation. 255 is the max number of tags or pending commands - * a device may have outstanding. - * - * The request count is incremented below for every successfully - * started request. - * - */ - if ((boardp->dvc_var.asc_dvc_var.cur_dvc_qng[scp->device->id] > 0) && - (boardp->reqcnt[scp->device->id] % 255) == 0) { - asc_scsi_q.q2.tag_code = MSG_ORDERED_TAG; - } else { - asc_scsi_q.q2.tag_code = MSG_SIMPLE_TAG; - } - - /* - * Build ASC_SCSI_Q for a contiguous buffer or a scatter-gather - * buffer command. - */ - if (scp->use_sg == 0) { - /* - * CDB request of single contiguous buffer. - */ - ASC_STATS(scp->device->host, cont_cnt); - scp->SCp.dma_handle = scp->request_bufflen ? - dma_map_single(boardp->dev, scp->request_buffer, - scp->request_bufflen, - scp->sc_data_direction) : 0; - asc_scsi_q.q1.data_addr = cpu_to_le32(scp->SCp.dma_handle); - asc_scsi_q.q1.data_cnt = cpu_to_le32(scp->request_bufflen); - ASC_STATS_ADD(scp->device->host, cont_xfer, - ASC_CEILING(scp->request_bufflen, 512)); - asc_scsi_q.q1.sg_queue_cnt = 0; - asc_scsi_q.sg_head = NULL; - } else { - /* - * CDB scatter-gather request list. - */ - int sgcnt; - int use_sg; - struct scatterlist *slp; - - slp = (struct scatterlist *)scp->request_buffer; - use_sg = dma_map_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); - - if (use_sg > scp->device->host->sg_tablesize) { - ASC_PRINT3("asc_build_req: board %d: use_sg %d > " - "sg_tablesize %d\n", boardp->id, use_sg, - scp->device->host->sg_tablesize); - dma_unmap_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); - scp->result = HOST_BYTE(DID_ERROR); - return ASC_ERROR; - } - - ASC_STATS(scp->device->host, sg_cnt); - - /* - * Use global ASC_SG_HEAD structure and set the ASC_SCSI_Q - * structure to point to it. - */ - memset(&asc_sg_head, 0, sizeof(ASC_SG_HEAD)); + printk(" ADV_DVC_CFG at addr 0x%lx\n", (ulong)h); - asc_scsi_q.q1.cntl |= QC_SG_HEAD; - asc_scsi_q.sg_head = &asc_sg_head; - asc_scsi_q.q1.data_cnt = 0; - asc_scsi_q.q1.data_addr = 0; - /* This is a byte value, otherwise it would need to be swapped. */ - asc_sg_head.entry_cnt = asc_scsi_q.q1.sg_queue_cnt = use_sg; - ASC_STATS_ADD(scp->device->host, sg_elem, - asc_sg_head.entry_cnt); + printk(" disc_enable 0x%x, termination 0x%x\n", + h->disc_enable, h->termination); - /* - * Convert scatter-gather list into ASC_SG_HEAD list. - */ - for (sgcnt = 0; sgcnt < use_sg; sgcnt++, slp++) { - asc_sg_head.sg_list[sgcnt].addr = - cpu_to_le32(sg_dma_address(slp)); - asc_sg_head.sg_list[sgcnt].bytes = - cpu_to_le32(sg_dma_len(slp)); - ASC_STATS_ADD(scp->device->host, sg_xfer, - ASC_CEILING(sg_dma_len(slp), 512)); - } - } + printk(" chip_version 0x%x, mcode_date 0x%x\n", + h->chip_version, h->mcode_date); - ASC_DBG_PRT_ASC_SCSI_Q(2, &asc_scsi_q); - ASC_DBG_PRT_CDB(1, scp->cmnd, scp->cmd_len); + printk(" mcode_version 0x%x, pci_device_id 0x%x, lib_version %u\n", + h->mcode_version, to_pci_dev(h->dev)->device, h->lib_version); - return ASC_NOERROR; + printk(" control_flag 0x%x\n", h->control_flag); } /* - * Build a request structure for the Adv Library (Wide Board). - * - * If an adv_req_t can not be allocated to issue the request, - * then return ASC_BUSY. If an error occurs, then return ASC_ERROR. + * asc_prt_adv_scsi_req_q() * - * Multi-byte fields in the ASC_SCSI_REQ_Q that are used by the - * microcode for DMA addresses or math operations are byte swapped - * to little-endian order. + * Display an ADV_SCSI_REQ_Q structure. */ -static int -adv_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, - ADV_SCSI_REQ_Q **adv_scsiqpp) +static void asc_prt_adv_scsi_req_q(ADV_SCSI_REQ_Q *q) { - adv_req_t *reqp; - ADV_SCSI_REQ_Q *scsiqp; - int i; - int ret; - - /* - * Allocate an adv_req_t structure from the board to execute - * the command. - */ - if (boardp->adv_reqp == NULL) { - ASC_DBG(1, "adv_build_req: no free adv_req_t\n"); - ASC_STATS(scp->device->host, adv_build_noreq); - return ASC_BUSY; - } else { - reqp = boardp->adv_reqp; - boardp->adv_reqp = reqp->next_reqp; - reqp->next_reqp = NULL; - } - - /* - * Get 32-byte aligned ADV_SCSI_REQ_Q and ADV_SG_BLOCK pointers. - */ - scsiqp = (ADV_SCSI_REQ_Q *)ADV_32BALIGN(&reqp->scsi_req_q); - - /* - * Initialize the structure. - */ - scsiqp->cntl = scsiqp->scsi_cntl = scsiqp->done_status = 0; - - /* - * Set the ADV_SCSI_REQ_Q 'srb_ptr' to point to the adv_req_t structure. - */ - scsiqp->srb_ptr = ASC_VADDR_TO_U32(reqp); - - /* - * Set the adv_req_t 'cmndp' to point to the struct scsi_cmnd structure. - */ - reqp->cmndp = scp; - - /* - * Build the ADV_SCSI_REQ_Q request. - */ - - /* Set CDB length and copy it to the request structure. */ - scsiqp->cdb_len = scp->cmd_len; - /* Copy first 12 CDB bytes to cdb[]. */ - for (i = 0; i < scp->cmd_len && i < 12; i++) { - scsiqp->cdb[i] = scp->cmnd[i]; - } - /* Copy last 4 CDB bytes, if present, to cdb16[]. */ - for (; i < scp->cmd_len; i++) { - scsiqp->cdb16[i - 12] = scp->cmnd[i]; - } - - scsiqp->target_id = scp->device->id; - scsiqp->target_lun = scp->device->lun; - - scsiqp->sense_addr = cpu_to_le32(virt_to_bus(&scp->sense_buffer[0])); - scsiqp->sense_len = sizeof(scp->sense_buffer); + int sg_blk_cnt; + struct asc_sg_block *sg_ptr; - /* - * Build ADV_SCSI_REQ_Q for a contiguous buffer or a scatter-gather - * buffer command. - */ + printk("ADV_SCSI_REQ_Q at addr 0x%lx\n", (ulong)q); - scsiqp->data_cnt = cpu_to_le32(scp->request_bufflen); - scsiqp->vdata_addr = scp->request_buffer; - scsiqp->data_addr = cpu_to_le32(virt_to_bus(scp->request_buffer)); + printk(" target_id %u, target_lun %u, srb_ptr 0x%lx, a_flag 0x%x\n", + q->target_id, q->target_lun, (ulong)q->srb_ptr, q->a_flag); - if (scp->use_sg == 0) { - /* - * CDB request of single contiguous buffer. - */ - reqp->sgblkp = NULL; - scsiqp->data_cnt = cpu_to_le32(scp->request_bufflen); - if (scp->request_bufflen) { - scsiqp->vdata_addr = scp->request_buffer; - scp->SCp.dma_handle = - dma_map_single(boardp->dev, scp->request_buffer, - scp->request_bufflen, - scp->sc_data_direction); - } else { - scsiqp->vdata_addr = NULL; - scp->SCp.dma_handle = 0; - } - scsiqp->data_addr = cpu_to_le32(scp->SCp.dma_handle); - scsiqp->sg_list_ptr = NULL; - scsiqp->sg_real_addr = 0; - ASC_STATS(scp->device->host, cont_cnt); - ASC_STATS_ADD(scp->device->host, cont_xfer, - ASC_CEILING(scp->request_bufflen, 512)); - } else { - /* - * CDB scatter-gather request list. - */ - struct scatterlist *slp; - int use_sg; + printk(" cntl 0x%x, data_addr 0x%lx, vdata_addr 0x%lx\n", + q->cntl, (ulong)le32_to_cpu(q->data_addr), (ulong)q->vdata_addr); - slp = (struct scatterlist *)scp->request_buffer; - use_sg = dma_map_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); + printk(" data_cnt %lu, sense_addr 0x%lx, sense_len %u,\n", + (ulong)le32_to_cpu(q->data_cnt), + (ulong)le32_to_cpu(q->sense_addr), q->sense_len); - if (use_sg > ADV_MAX_SG_LIST) { - ASC_PRINT3("adv_build_req: board %d: use_sg %d > " - "ADV_MAX_SG_LIST %d\n", boardp->id, use_sg, - scp->device->host->sg_tablesize); - dma_unmap_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); - scp->result = HOST_BYTE(DID_ERROR); + printk + (" cdb_len %u, done_status 0x%x, host_status 0x%x, scsi_status 0x%x\n", + q->cdb_len, q->done_status, q->host_status, q->scsi_status); - /* - * Free the 'adv_req_t' structure by adding it back - * to the board free list. - */ - reqp->next_reqp = boardp->adv_reqp; - boardp->adv_reqp = reqp; + printk(" sg_working_ix 0x%x, target_cmd %u\n", + q->sg_working_ix, q->target_cmd); - return ASC_ERROR; - } + printk(" scsiq_rptr 0x%lx, sg_real_addr 0x%lx, sg_list_ptr 0x%lx\n", + (ulong)le32_to_cpu(q->scsiq_rptr), + (ulong)le32_to_cpu(q->sg_real_addr), (ulong)q->sg_list_ptr); - ret = adv_get_sglist(boardp, reqp, scp, use_sg); - if (ret != ADV_SUCCESS) { + /* Display the request's ADV_SG_BLOCK structures. */ + if (q->sg_list_ptr != NULL) { + sg_blk_cnt = 0; + while (1) { /* - * Free the adv_req_t structure by adding it back to - * the board free list. + * 'sg_ptr' is a physical address. Convert it to a virtual + * address by indexing 'sg_blk_cnt' into the virtual address + * array 'sg_list_ptr'. + * + * XXX - Assumes all SG physical blocks are virtually contiguous. */ - reqp->next_reqp = boardp->adv_reqp; - boardp->adv_reqp = reqp; - - return ret; + sg_ptr = + &(((ADV_SG_BLOCK *)(q->sg_list_ptr))[sg_blk_cnt]); + asc_prt_adv_sgblock(sg_blk_cnt, sg_ptr); + if (sg_ptr->sg_ptr == 0) { + break; + } + sg_blk_cnt++; } - - ASC_STATS(scp->device->host, sg_cnt); - ASC_STATS_ADD(scp->device->host, sg_elem, use_sg); } - - ASC_DBG_PRT_ADV_SCSI_REQ_Q(2, scsiqp); - ASC_DBG_PRT_CDB(1, scp->cmnd, scp->cmd_len); - - *adv_scsiqpp = scsiqp; - - return ASC_NOERROR; } /* - * Build scatter-gather list for Adv Library (Wide Board). - * - * Additional ADV_SG_BLOCK structures will need to be allocated - * if the total number of scatter-gather elements exceeds - * NO_OF_SG_PER_BLOCK (15). The ADV_SG_BLOCK structures are - * assumed to be physically contiguous. + * asc_prt_adv_sgblock() * - * Return: - * ADV_SUCCESS(1) - SG List successfully created - * ADV_ERROR(-1) - SG List creation failed + * Display an ADV_SG_BLOCK structure. */ -static int -adv_get_sglist(asc_board_t *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, - int use_sg) +static void asc_prt_adv_sgblock(int sgblockno, ADV_SG_BLOCK *b) { - adv_sgblk_t *sgblkp; - ADV_SCSI_REQ_Q *scsiqp; - struct scatterlist *slp; - int sg_elem_cnt; - ADV_SG_BLOCK *sg_block, *prev_sg_block; - ADV_PADDR sg_block_paddr; int i; - scsiqp = (ADV_SCSI_REQ_Q *)ADV_32BALIGN(&reqp->scsi_req_q); - slp = (struct scatterlist *)scp->request_buffer; - sg_elem_cnt = use_sg; - prev_sg_block = NULL; - reqp->sgblkp = NULL; - - for (;;) { - /* - * Allocate a 'adv_sgblk_t' structure from the board free - * list. One 'adv_sgblk_t' structure holds NO_OF_SG_PER_BLOCK - * (15) scatter-gather elements. - */ - if ((sgblkp = boardp->adv_sgblkp) == NULL) { - ASC_DBG(1, "adv_get_sglist: no free adv_sgblk_t\n"); - ASC_STATS(scp->device->host, adv_build_nosg); - - /* - * Allocation failed. Free 'adv_sgblk_t' structures - * already allocated for the request. - */ - while ((sgblkp = reqp->sgblkp) != NULL) { - /* Remove 'sgblkp' from the request list. */ - reqp->sgblkp = sgblkp->next_sgblkp; - - /* Add 'sgblkp' to the board free list. */ - sgblkp->next_sgblkp = boardp->adv_sgblkp; - boardp->adv_sgblkp = sgblkp; - } - return ASC_BUSY; - } - - /* Complete 'adv_sgblk_t' board allocation. */ - boardp->adv_sgblkp = sgblkp->next_sgblkp; - sgblkp->next_sgblkp = NULL; - - /* - * Get 8 byte aligned virtual and physical addresses - * for the allocated ADV_SG_BLOCK structure. - */ - sg_block = (ADV_SG_BLOCK *)ADV_8BALIGN(&sgblkp->sg_block); - sg_block_paddr = virt_to_bus(sg_block); - - /* - * Check if this is the first 'adv_sgblk_t' for the - * request. - */ - if (reqp->sgblkp == NULL) { - /* Request's first scatter-gather block. */ - reqp->sgblkp = sgblkp; - - /* - * Set ADV_SCSI_REQ_T ADV_SG_BLOCK virtual and physical - * address pointers. - */ - scsiqp->sg_list_ptr = sg_block; - scsiqp->sg_real_addr = cpu_to_le32(sg_block_paddr); - } else { - /* Request's second or later scatter-gather block. */ - sgblkp->next_sgblkp = reqp->sgblkp; - reqp->sgblkp = sgblkp; - - /* - * Point the previous ADV_SG_BLOCK structure to - * the newly allocated ADV_SG_BLOCK structure. - */ - prev_sg_block->sg_ptr = cpu_to_le32(sg_block_paddr); - } - - for (i = 0; i < NO_OF_SG_PER_BLOCK; i++) { - sg_block->sg_list[i].sg_addr = - cpu_to_le32(sg_dma_address(slp)); - sg_block->sg_list[i].sg_count = - cpu_to_le32(sg_dma_len(slp)); - ASC_STATS_ADD(scp->device->host, sg_xfer, - ASC_CEILING(sg_dma_len(slp), 512)); - - if (--sg_elem_cnt == 0) { /* Last ADV_SG_BLOCK and scatter-gather entry. */ - sg_block->sg_cnt = i + 1; - sg_block->sg_ptr = 0L; /* Last ADV_SG_BLOCK in list. */ - return ADV_SUCCESS; - } - slp++; - } - sg_block->sg_cnt = NO_OF_SG_PER_BLOCK; - prev_sg_block = sg_block; + printk(" ASC_SG_BLOCK at addr 0x%lx (sgblockno %d)\n", + (ulong)b, sgblockno); + printk(" sg_cnt %u, sg_ptr 0x%lx\n", + b->sg_cnt, (ulong)le32_to_cpu(b->sg_ptr)); + BUG_ON(b->sg_cnt > NO_OF_SG_PER_BLOCK); + if (b->sg_ptr != 0) + BUG_ON(b->sg_cnt != NO_OF_SG_PER_BLOCK); + for (i = 0; i < b->sg_cnt; i++) { + printk(" [%u]: sg_addr 0x%lx, sg_count 0x%lx\n", + i, (ulong)b->sg_list[i].sg_addr, + (ulong)b->sg_list[i].sg_count); } } /* - * asc_isr_callback() - Second Level Interrupt Handler called by AscISR(). + * asc_prt_hex() * - * Interrupt callback function for the Narrow SCSI Asc Library. + * Print hexadecimal output in 4 byte groupings 32 bytes + * or 8 double-words per line. */ -static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) +static void asc_prt_hex(char *f, uchar *s, int l) { - asc_board_t *boardp; - struct scsi_cmnd *scp; - struct Scsi_Host *shost; - - ASC_DBG2(1, "asc_isr_callback: asc_dvc_varp 0x%lx, qdonep 0x%lx\n", - (ulong)asc_dvc_varp, (ulong)qdonep); - ASC_DBG_PRT_ASC_QDONE_INFO(2, qdonep); - - /* - * Get the struct scsi_cmnd structure and Scsi_Host structure for the - * command that has been completed. - */ - scp = (struct scsi_cmnd *)ASC_U32_TO_VADDR(qdonep->d2.srb_ptr); - ASC_DBG1(1, "asc_isr_callback: scp 0x%lx\n", (ulong)scp); - - if (scp == NULL) { - ASC_PRINT("asc_isr_callback: scp is NULL\n"); - return; - } - ASC_DBG_PRT_CDB(2, scp->cmnd, scp->cmd_len); - - shost = scp->device->host; - ASC_STATS(shost, callback); - ASC_DBG1(1, "asc_isr_callback: shost 0x%lx\n", (ulong)shost); + int i; + int j; + int k; + int m; - boardp = ASC_BOARDP(shost); - BUG_ON(asc_dvc_varp != &boardp->dvc_var.asc_dvc_var); + printk("%s: (%d bytes)\n", f, l); - /* - * 'qdonep' contains the command's ending status. - */ - switch (qdonep->d3.done_stat) { - case QD_NO_ERROR: - ASC_DBG(2, "asc_isr_callback: QD_NO_ERROR\n"); - scp->result = 0; + for (i = 0; i < l; i += 32) { - /* - * Check for an underrun condition. - * - * If there was no error and an underrun condition, then - * return the number of underrun bytes. - */ - if (scp->request_bufflen != 0 && qdonep->remain_bytes != 0 && - qdonep->remain_bytes <= scp->request_bufflen) { - ASC_DBG1(1, - "asc_isr_callback: underrun condition %u bytes\n", - (unsigned)qdonep->remain_bytes); - scp->resid = qdonep->remain_bytes; + /* Display a maximum of 8 double-words per line. */ + if ((k = (l - i) / 4) >= 8) { + k = 8; + m = 0; + } else { + m = (l - i) % 4; } - break; - case QD_WITH_ERROR: - ASC_DBG(2, "asc_isr_callback: QD_WITH_ERROR\n"); - switch (qdonep->d3.host_stat) { - case QHSTA_NO_ERROR: - if (qdonep->d3.scsi_stat == SAM_STAT_CHECK_CONDITION) { - ASC_DBG(2, - "asc_isr_callback: SAM_STAT_CHECK_CONDITION\n"); - ASC_DBG_PRT_SENSE(2, scp->sense_buffer, - sizeof(scp->sense_buffer)); - /* - * Note: The 'status_byte()' macro used by - * target drivers defined in scsi.h shifts the - * status byte returned by host drivers right - * by 1 bit. This is why target drivers also - * use right shifted status byte definitions. - * For instance target drivers use - * CHECK_CONDITION, defined to 0x1, instead of - * the SCSI defined check condition value of - * 0x2. Host drivers are supposed to return - * the status byte as it is defined by SCSI. - */ - scp->result = DRIVER_BYTE(DRIVER_SENSE) | - STATUS_BYTE(qdonep->d3.scsi_stat); - } else { - scp->result = STATUS_BYTE(qdonep->d3.scsi_stat); - } - break; + for (j = 0; j < k; j++) { + printk(" %2.2X%2.2X%2.2X%2.2X", + (unsigned)s[i + (j * 4)], + (unsigned)s[i + (j * 4) + 1], + (unsigned)s[i + (j * 4) + 2], + (unsigned)s[i + (j * 4) + 3]); + } + switch (m) { + case 0: default: - /* QHSTA error occurred */ - ASC_DBG1(1, "asc_isr_callback: host_stat 0x%x\n", - qdonep->d3.host_stat); - scp->result = HOST_BYTE(DID_BAD_TARGET); + break; + case 1: + printk(" %2.2X", (unsigned)s[i + (j * 4)]); + break; + case 2: + printk(" %2.2X%2.2X", + (unsigned)s[i + (j * 4)], + (unsigned)s[i + (j * 4) + 1]); + break; + case 3: + printk(" %2.2X%2.2X%2.2X", + (unsigned)s[i + (j * 4) + 1], + (unsigned)s[i + (j * 4) + 2], + (unsigned)s[i + (j * 4) + 3]); break; } - break; - - case QD_ABORTED_BY_HOST: - ASC_DBG(1, "asc_isr_callback: QD_ABORTED_BY_HOST\n"); - scp->result = - HOST_BYTE(DID_ABORT) | MSG_BYTE(qdonep->d3. - scsi_msg) | - STATUS_BYTE(qdonep->d3.scsi_stat); - break; - - default: - ASC_DBG1(1, "asc_isr_callback: done_stat 0x%x\n", - qdonep->d3.done_stat); - scp->result = - HOST_BYTE(DID_ERROR) | MSG_BYTE(qdonep->d3. - scsi_msg) | - STATUS_BYTE(qdonep->d3.scsi_stat); - break; - } - /* - * If the 'init_tidmask' bit isn't already set for the target and the - * current request finished normally, then set the bit for the target - * to indicate that a device is present. - */ - if ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(scp->device->id)) == 0 && - qdonep->d3.done_stat == QD_NO_ERROR && - qdonep->d3.host_stat == QHSTA_NO_ERROR) { - boardp->init_tidmask |= ADV_TID_TO_TIDMASK(scp->device->id); + printk("\n"); } - - asc_scsi_done(scp); - - return; } +#endif /* ADVANSYS_DEBUG */ /* - * adv_isr_callback() - Second Level Interrupt Handler called by AdvISR(). + * advansys_info() * - * Callback function for the Wide SCSI Adv Library. + * Return suitable for printing on the console with the argument + * adapter's configuration information. + * + * Note: The information line should not exceed ASC_INFO_SIZE bytes, + * otherwise the static 'info' array will be overrun. */ -static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) +static const char *advansys_info(struct Scsi_Host *shost) { + static char info[ASC_INFO_SIZE]; asc_board_t *boardp; - adv_req_t *reqp; - adv_sgblk_t *sgblkp; - struct scsi_cmnd *scp; - struct Scsi_Host *shost; - ADV_DCNT resid_cnt; - - ASC_DBG2(1, "adv_isr_callback: adv_dvc_varp 0x%lx, scsiqp 0x%lx\n", - (ulong)adv_dvc_varp, (ulong)scsiqp); - ASC_DBG_PRT_ADV_SCSI_REQ_Q(2, scsiqp); - - /* - * Get the adv_req_t structure for the command that has been - * completed. The adv_req_t structure actually contains the - * completed ADV_SCSI_REQ_Q structure. - */ - reqp = (adv_req_t *)ADV_U32_TO_VADDR(scsiqp->srb_ptr); - ASC_DBG1(1, "adv_isr_callback: reqp 0x%lx\n", (ulong)reqp); - if (reqp == NULL) { - ASC_PRINT("adv_isr_callback: reqp is NULL\n"); - return; - } - - /* - * Get the struct scsi_cmnd structure and Scsi_Host structure for the - * command that has been completed. - * - * Note: The adv_req_t request structure and adv_sgblk_t structure, - * if any, are dropped, because a board structure pointer can not be - * determined. - */ - scp = reqp->cmndp; - ASC_DBG1(1, "adv_isr_callback: scp 0x%lx\n", (ulong)scp); - if (scp == NULL) { - ASC_PRINT - ("adv_isr_callback: scp is NULL; adv_req_t dropped.\n"); - return; - } - ASC_DBG_PRT_CDB(2, scp->cmnd, scp->cmd_len); - - shost = scp->device->host; - ASC_STATS(shost, callback); - ASC_DBG1(1, "adv_isr_callback: shost 0x%lx\n", (ulong)shost); + ASC_DVC_VAR *asc_dvc_varp; + ADV_DVC_VAR *adv_dvc_varp; + char *busname; + char *widename = NULL; boardp = ASC_BOARDP(shost); - BUG_ON(adv_dvc_varp != &boardp->dvc_var.adv_dvc_var); - - /* - * 'done_status' contains the command's ending status. - */ - switch (scsiqp->done_status) { - case QD_NO_ERROR: - ASC_DBG(2, "adv_isr_callback: QD_NO_ERROR\n"); - scp->result = 0; - + if (ASC_NARROW_BOARD(boardp)) { + asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; + ASC_DBG(1, "advansys_info: begin\n"); + if (asc_dvc_varp->bus_type & ASC_IS_ISA) { + if ((asc_dvc_varp->bus_type & ASC_IS_ISAPNP) == + ASC_IS_ISAPNP) { + busname = "ISA PnP"; + } else { + busname = "ISA"; + } + sprintf(info, + "AdvanSys SCSI %s: %s: IO 0x%lX-0x%lX, IRQ 0x%X, DMA 0x%X", + ASC_VERSION, busname, + (ulong)shost->io_port, + (ulong)shost->io_port + ASC_IOADR_GAP - 1, + shost->irq, shost->dma_channel); + } else { + if (asc_dvc_varp->bus_type & ASC_IS_VL) { + busname = "VL"; + } else if (asc_dvc_varp->bus_type & ASC_IS_EISA) { + busname = "EISA"; + } else if (asc_dvc_varp->bus_type & ASC_IS_PCI) { + if ((asc_dvc_varp->bus_type & ASC_IS_PCI_ULTRA) + == ASC_IS_PCI_ULTRA) { + busname = "PCI Ultra"; + } else { + busname = "PCI"; + } + } else { + busname = "?"; + ASC_PRINT2("advansys_info: board %d: unknown " + "bus type %d\n", boardp->id, + asc_dvc_varp->bus_type); + } + sprintf(info, + "AdvanSys SCSI %s: %s: IO 0x%lX-0x%lX, IRQ 0x%X", + ASC_VERSION, busname, (ulong)shost->io_port, + (ulong)shost->io_port + ASC_IOADR_GAP - 1, + shost->irq); + } + } else { /* - * Check for an underrun condition. + * Wide Adapter Information * - * If there was no error and an underrun condition, then - * then return the number of underrun bytes. + * Memory-mapped I/O is used instead of I/O space to access + * the adapter, but display the I/O Port range. The Memory + * I/O address is displayed through the driver /proc file. */ - resid_cnt = le32_to_cpu(scsiqp->data_cnt); - if (scp->request_bufflen != 0 && resid_cnt != 0 && - resid_cnt <= scp->request_bufflen) { - ASC_DBG1(1, - "adv_isr_callback: underrun condition %lu bytes\n", - (ulong)resid_cnt); - scp->resid = resid_cnt; - } - break; - - case QD_WITH_ERROR: - ASC_DBG(2, "adv_isr_callback: QD_WITH_ERROR\n"); - switch (scsiqp->host_status) { - case QHSTA_NO_ERROR: - if (scsiqp->scsi_status == SAM_STAT_CHECK_CONDITION) { - ASC_DBG(2, - "adv_isr_callback: SAM_STAT_CHECK_CONDITION\n"); - ASC_DBG_PRT_SENSE(2, scp->sense_buffer, - sizeof(scp->sense_buffer)); - /* - * Note: The 'status_byte()' macro used by - * target drivers defined in scsi.h shifts the - * status byte returned by host drivers right - * by 1 bit. This is why target drivers also - * use right shifted status byte definitions. - * For instance target drivers use - * CHECK_CONDITION, defined to 0x1, instead of - * the SCSI defined check condition value of - * 0x2. Host drivers are supposed to return - * the status byte as it is defined by SCSI. - */ - scp->result = DRIVER_BYTE(DRIVER_SENSE) | - STATUS_BYTE(scsiqp->scsi_status); - } else { - scp->result = STATUS_BYTE(scsiqp->scsi_status); - } - break; - - default: - /* Some other QHSTA error occurred. */ - ASC_DBG1(1, "adv_isr_callback: host_status 0x%x\n", - scsiqp->host_status); - scp->result = HOST_BYTE(DID_BAD_TARGET); - break; + adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; + if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { + widename = "Ultra-Wide"; + } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) { + widename = "Ultra2-Wide"; + } else { + widename = "Ultra3-Wide"; } - break; - - case QD_ABORTED_BY_HOST: - ASC_DBG(1, "adv_isr_callback: QD_ABORTED_BY_HOST\n"); - scp->result = - HOST_BYTE(DID_ABORT) | STATUS_BYTE(scsiqp->scsi_status); - break; - - default: - ASC_DBG1(1, "adv_isr_callback: done_status 0x%x\n", - scsiqp->done_status); - scp->result = - HOST_BYTE(DID_ERROR) | STATUS_BYTE(scsiqp->scsi_status); - break; - } - - /* - * If the 'init_tidmask' bit isn't already set for the target and the - * current request finished normally, then set the bit for the target - * to indicate that a device is present. - */ - if ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(scp->device->id)) == 0 && - scsiqp->done_status == QD_NO_ERROR && - scsiqp->host_status == QHSTA_NO_ERROR) { - boardp->init_tidmask |= ADV_TID_TO_TIDMASK(scp->device->id); - } - - asc_scsi_done(scp); - - /* - * Free all 'adv_sgblk_t' structures allocated for the request. - */ - while ((sgblkp = reqp->sgblkp) != NULL) { - /* Remove 'sgblkp' from the request list. */ - reqp->sgblkp = sgblkp->next_sgblkp; - - /* Add 'sgblkp' to the board free list. */ - sgblkp->next_sgblkp = boardp->adv_sgblkp; - boardp->adv_sgblkp = sgblkp; + sprintf(info, + "AdvanSys SCSI %s: PCI %s: PCIMEM 0x%lX-0x%lX, IRQ 0x%X", + ASC_VERSION, widename, (ulong)adv_dvc_varp->iop_base, + (ulong)adv_dvc_varp->iop_base + boardp->asc_n_io_port - 1, shost->irq); } - - /* - * Free the adv_req_t structure used with the command by adding - * it back to the board free list. - */ - reqp->next_reqp = boardp->adv_reqp; - boardp->adv_reqp = reqp; - - ASC_DBG(1, "adv_isr_callback: done\n"); - - return; + BUG_ON(strlen(info) >= ASC_INFO_SIZE); + ASC_DBG(1, "advansys_info: end\n"); + return info; } +#ifdef CONFIG_PROC_FS /* - * adv_async_callback() - Adv Library asynchronous event callback function. + * asc_prt_line() + * + * If 'cp' is NULL print to the console, otherwise print to a buffer. + * + * Return 0 if printing to the console, otherwise return the number of + * bytes written to the buffer. + * + * Note: If any single line is greater than ASC_PRTLINE_SIZE bytes the stack + * will be corrupted. 's[]' is defined to be ASC_PRTLINE_SIZE bytes. */ -static void adv_async_callback(ADV_DVC_VAR *adv_dvc_varp, uchar code) +static int asc_prt_line(char *buf, int buflen, char *fmt, ...) { - switch (code) { - case ADV_ASYNC_SCSI_BUS_RESET_DET: - /* - * The firmware detected a SCSI Bus reset. - */ - ASC_DBG(0, - "adv_async_callback: ADV_ASYNC_SCSI_BUS_RESET_DET\n"); - break; - - case ADV_ASYNC_RDMA_FAILURE: - /* - * Handle RDMA failure by resetting the SCSI Bus and - * possibly the chip if it is unresponsive. Log the error - * with a unique code. - */ - ASC_DBG(0, "adv_async_callback: ADV_ASYNC_RDMA_FAILURE\n"); - AdvResetChipAndSB(adv_dvc_varp); - break; - - case ADV_HOST_SCSI_BUS_RESET: - /* - * Host generated SCSI bus reset occurred. - */ - ASC_DBG(0, "adv_async_callback: ADV_HOST_SCSI_BUS_RESET\n"); - break; + va_list args; + int ret; + char s[ASC_PRTLINE_SIZE]; - default: - ASC_DBG1(0, "DvcAsyncCallBack: unknown code 0x%x\n", code); - break; + va_start(args, fmt); + ret = vsprintf(s, fmt, args); + BUG_ON(ret >= ASC_PRTLINE_SIZE); + if (buf == NULL) { + (void)printk(s); + ret = 0; + } else { + ret = min(buflen, ret); + memcpy(buf, s, ret); } + va_end(args); + return ret; } -#ifdef CONFIG_PROC_FS /* * asc_prt_board_devices() * @@ -5548,159 +4212,7 @@ asc_proc_copy(off_t advoffset, off_t offset, char *curbuf, int leftlen, return cnt; } -/* - * asc_prt_line() - * - * If 'cp' is NULL print to the console, otherwise print to a buffer. - * - * Return 0 if printing to the console, otherwise return the number of - * bytes written to the buffer. - * - * Note: If any single line is greater than ASC_PRTLINE_SIZE bytes the stack - * will be corrupted. 's[]' is defined to be ASC_PRTLINE_SIZE bytes. - */ -static int asc_prt_line(char *buf, int buflen, char *fmt, ...) -{ - va_list args; - int ret; - char s[ASC_PRTLINE_SIZE]; - - va_start(args, fmt); - ret = vsprintf(s, fmt, args); - BUG_ON(ret >= ASC_PRTLINE_SIZE); - if (buf == NULL) { - (void)printk(s); - ret = 0; - } else { - ret = min(buflen, ret); - memcpy(buf, s, ret); - } - va_end(args); - return ret; -} -#endif /* CONFIG_PROC_FS */ - -/* - * void - * DvcPutScsiQ(PortAddr iop_base, ushort s_addr, uchar *outbuf, int words) - * - * Calling/Exit State: - * none - * - * Description: - * Output an ASC_SCSI_Q structure to the chip - */ -static void -DvcPutScsiQ(PortAddr iop_base, ushort s_addr, uchar *outbuf, int words) -{ - int i; - - ASC_DBG_PRT_HEX(2, "DvcPutScsiQ", outbuf, 2 * words); - AscSetChipLramAddr(iop_base, s_addr); - for (i = 0; i < 2 * words; i += 2) { - if (i == 4 || i == 20) { - continue; - } - outpw(iop_base + IOP_RAM_DATA, - ((ushort)outbuf[i + 1] << 8) | outbuf[i]); - } -} - -/* - * void - * DvcGetQinfo(PortAddr iop_base, ushort s_addr, uchar *inbuf, int words) - * - * Calling/Exit State: - * none - * - * Description: - * Input an ASC_QDONE_INFO structure from the chip - */ -static void -DvcGetQinfo(PortAddr iop_base, ushort s_addr, uchar *inbuf, int words) -{ - int i; - ushort word; - - AscSetChipLramAddr(iop_base, s_addr); - for (i = 0; i < 2 * words; i += 2) { - if (i == 10) { - continue; - } - word = inpw(iop_base + IOP_RAM_DATA); - inbuf[i] = word & 0xff; - inbuf[i + 1] = (word >> 8) & 0xff; - } - ASC_DBG_PRT_HEX(2, "DvcGetQinfo", inbuf, 2 * words); -} - -/* - * Return the BIOS address of the adapter at the specified - * I/O port and with the specified bus type. - */ -static unsigned short __devinit -AscGetChipBiosAddress(PortAddr iop_base, unsigned short bus_type) -{ - unsigned short cfg_lsw; - unsigned short bios_addr; - - /* - * The PCI BIOS is re-located by the motherboard BIOS. Because - * of this the driver can not determine where a PCI BIOS is - * loaded and executes. - */ - if (bus_type & ASC_IS_PCI) - return 0; - -#ifdef CONFIG_ISA - if ((bus_type & ASC_IS_EISA) != 0) { - cfg_lsw = AscGetEisaChipCfg(iop_base); - cfg_lsw &= 0x000F; - bios_addr = ASC_BIOS_MIN_ADDR + cfg_lsw * ASC_BIOS_BANK_SIZE; - return bios_addr; - } -#endif /* CONFIG_ISA */ - - cfg_lsw = AscGetChipCfgLsw(iop_base); - - /* - * ISA PnP uses the top bit as the 32K BIOS flag - */ - if (bus_type == ASC_IS_ISAPNP) - cfg_lsw &= 0x7FFF; - bios_addr = ASC_BIOS_MIN_ADDR + (cfg_lsw >> 12) * ASC_BIOS_BANK_SIZE; - return bios_addr; -} - -/* - * DvcGetPhyAddr() - * - * Return the physical address of 'vaddr' and set '*lenp' to the - * number of physically contiguous bytes that follow 'vaddr'. - * 'flag' indicates the type of structure whose physical address - * is being translated. - * - * Note: Because Linux currently doesn't page the kernel and all - * kernel buffers are physically contiguous, leave '*lenp' unchanged. - */ -ADV_PADDR -DvcGetPhyAddr(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq, - uchar *vaddr, ADV_SDCNT *lenp, int flag) -{ - ADV_PADDR paddr; - - paddr = virt_to_bus(vaddr); - - ASC_DBG4(4, - "DvcGetPhyAddr: vaddr 0x%lx, lenp 0x%lx *lenp %lu, paddr 0x%lx\n", - (ulong)vaddr, (ulong)lenp, (ulong)*((ulong *)lenp), - (ulong)paddr); - - return paddr; -} - #ifdef ADVANSYS_STATS -#ifdef CONFIG_PROC_FS /* * asc_prt_board_stats() * @@ -5803,420 +4315,543 @@ static int asc_prt_board_stats(struct Scsi_Host *shost, char *cp, int cplen) return totlen; } -#endif /* CONFIG_PROC_FS */ #endif /* ADVANSYS_STATS */ -#ifdef ADVANSYS_DEBUG /* - * asc_prt_scsi_host() + * advansys_proc_info() - /proc/scsi/advansys/{0,1,2,3,...} + * + * *buffer: I/O buffer + * **start: if inout == FALSE pointer into buffer where user read should start + * offset: current offset into a /proc/scsi/advansys/[0...] file + * length: length of buffer + * hostno: Scsi_Host host_no + * inout: TRUE - user is writing; FALSE - user is reading + * + * Return the number of bytes read from or written to a + * /proc/scsi/advansys/[0...] file. + * + * Note: This function uses the per board buffer 'prtbuf' which is + * allocated when the board is initialized in advansys_detect(). The + * buffer is ASC_PRTBUF_SIZE bytes. The function asc_proc_copy() is + * used to write to the buffer. The way asc_proc_copy() is written + * if 'prtbuf' is too small it will not be overwritten. Instead the + * user just won't get all the available statistics. */ -static void asc_prt_scsi_host(struct Scsi_Host *s) +static int +advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, + off_t offset, int length, int inout) { asc_board_t *boardp; + char *cp; + int cplen; + int cnt; + int totcnt; + int leftlen; + char *curbuf; + off_t advoffset; - boardp = ASC_BOARDP(s); + ASC_DBG(1, "advansys_proc_info: begin\n"); - printk("Scsi_Host at addr 0x%lx\n", (ulong)s); - printk(" host_busy %u, host_no %d, last_reset %d,\n", - s->host_busy, s->host_no, (unsigned)s->last_reset); + /* + * User write not supported. + */ + if (inout == TRUE) { + return (-ENOSYS); + } - printk(" base 0x%lx, io_port 0x%lx, irq 0x%x,\n", - (ulong)s->base, (ulong)s->io_port, s->irq); + /* + * User read of /proc/scsi/advansys/[0...] file. + */ - printk(" dma_channel %d, this_id %d, can_queue %d,\n", - s->dma_channel, s->this_id, s->can_queue); + boardp = ASC_BOARDP(shost); - printk(" cmd_per_lun %d, sg_tablesize %d, unchecked_isa_dma %d\n", - s->cmd_per_lun, s->sg_tablesize, s->unchecked_isa_dma); + /* Copy read data starting at the beginning of the buffer. */ + *start = buffer; + curbuf = buffer; + advoffset = 0; + totcnt = 0; + leftlen = length; - if (ASC_NARROW_BOARD(boardp)) { - asc_prt_asc_dvc_var(&ASC_BOARDP(s)->dvc_var.asc_dvc_var); - asc_prt_asc_dvc_cfg(&ASC_BOARDP(s)->dvc_cfg.asc_dvc_cfg); - } else { - asc_prt_adv_dvc_var(&ASC_BOARDP(s)->dvc_var.adv_dvc_var); - asc_prt_adv_dvc_cfg(&ASC_BOARDP(s)->dvc_cfg.adv_dvc_cfg); + /* + * Get board configuration information. + * + * advansys_info() returns the board string from its own static buffer. + */ + cp = (char *)advansys_info(shost); + strcat(cp, "\n"); + cplen = strlen(cp); + /* Copy board information. */ + cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); + totcnt += cnt; + leftlen -= cnt; + if (leftlen == 0) { + ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); + return totcnt; } -} - -/* - * asc_prt_scsi_cmnd() - */ -static void asc_prt_scsi_cmnd(struct scsi_cmnd *s) -{ - printk("struct scsi_cmnd at addr 0x%lx\n", (ulong)s); + advoffset += cplen; + curbuf += cnt; - printk(" host 0x%lx, device 0x%lx, target %u, lun %u, channel %u,\n", - (ulong)s->device->host, (ulong)s->device, s->device->id, - s->device->lun, s->device->channel); + /* + * Display Wide Board BIOS Information. + */ + if (ASC_WIDE_BOARD(boardp)) { + cp = boardp->prtbuf; + cplen = asc_prt_adv_bios(shost, cp, ASC_PRTBUF_SIZE); + BUG_ON(cplen >= ASC_PRTBUF_SIZE); + cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, + cplen); + totcnt += cnt; + leftlen -= cnt; + if (leftlen == 0) { + ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); + return totcnt; + } + advoffset += cplen; + curbuf += cnt; + } - asc_prt_hex(" CDB", s->cmnd, s->cmd_len); + /* + * Display driver information for each device attached to the board. + */ + cp = boardp->prtbuf; + cplen = asc_prt_board_devices(shost, cp, ASC_PRTBUF_SIZE); + BUG_ON(cplen >= ASC_PRTBUF_SIZE); + cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); + totcnt += cnt; + leftlen -= cnt; + if (leftlen == 0) { + ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); + return totcnt; + } + advoffset += cplen; + curbuf += cnt; - printk("sc_data_direction %u, resid %d\n", - s->sc_data_direction, s->resid); + /* + * Display EEPROM configuration for the board. + */ + cp = boardp->prtbuf; + if (ASC_NARROW_BOARD(boardp)) { + cplen = asc_prt_asc_board_eeprom(shost, cp, ASC_PRTBUF_SIZE); + } else { + cplen = asc_prt_adv_board_eeprom(shost, cp, ASC_PRTBUF_SIZE); + } + BUG_ON(cplen >= ASC_PRTBUF_SIZE); + cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); + totcnt += cnt; + leftlen -= cnt; + if (leftlen == 0) { + ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); + return totcnt; + } + advoffset += cplen; + curbuf += cnt; - printk(" use_sg %u, sglist_len %u\n", s->use_sg, s->sglist_len); + /* + * Display driver configuration and information for the board. + */ + cp = boardp->prtbuf; + cplen = asc_prt_driver_conf(shost, cp, ASC_PRTBUF_SIZE); + BUG_ON(cplen >= ASC_PRTBUF_SIZE); + cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); + totcnt += cnt; + leftlen -= cnt; + if (leftlen == 0) { + ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); + return totcnt; + } + advoffset += cplen; + curbuf += cnt; - printk(" serial_number 0x%x, retries %d, allowed %d\n", - (unsigned)s->serial_number, s->retries, s->allowed); +#ifdef ADVANSYS_STATS + /* + * Display driver statistics for the board. + */ + cp = boardp->prtbuf; + cplen = asc_prt_board_stats(shost, cp, ASC_PRTBUF_SIZE); + BUG_ON(cplen >= ASC_PRTBUF_SIZE); + cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); + totcnt += cnt; + leftlen -= cnt; + if (leftlen == 0) { + ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); + return totcnt; + } + advoffset += cplen; + curbuf += cnt; +#endif /* ADVANSYS_STATS */ - printk(" timeout_per_command %d\n", s->timeout_per_command); + /* + * Display Asc Library dynamic configuration information + * for the board. + */ + cp = boardp->prtbuf; + if (ASC_NARROW_BOARD(boardp)) { + cplen = asc_prt_asc_board_info(shost, cp, ASC_PRTBUF_SIZE); + } else { + cplen = asc_prt_adv_board_info(shost, cp, ASC_PRTBUF_SIZE); + } + BUG_ON(cplen >= ASC_PRTBUF_SIZE); + cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); + totcnt += cnt; + leftlen -= cnt; + if (leftlen == 0) { + ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); + return totcnt; + } + advoffset += cplen; + curbuf += cnt; - printk(" scsi_done 0x%p, done 0x%p, host_scribble 0x%p, result 0x%x\n", - s->scsi_done, s->done, s->host_scribble, s->result); + ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); - printk(" tag %u, pid %u\n", (unsigned)s->tag, (unsigned)s->pid); + return totcnt; } +#endif /* CONFIG_PROC_FS */ -/* - * asc_prt_asc_dvc_var() - */ -static void asc_prt_asc_dvc_var(ASC_DVC_VAR *h) +static void asc_scsi_done(struct scsi_cmnd *scp) { - printk("ASC_DVC_VAR at addr 0x%lx\n", (ulong)h); - - printk(" iop_base 0x%x, err_code 0x%x, dvc_cntl 0x%x, bug_fix_cntl " - "%d,\n", h->iop_base, h->err_code, h->dvc_cntl, h->bug_fix_cntl); - - printk(" bus_type %d, init_sdtr 0x%x,\n", h->bus_type, - (unsigned)h->init_sdtr); + struct asc_board *boardp = ASC_BOARDP(scp->device->host); - printk(" sdtr_done 0x%x, use_tagged_qng 0x%x, unit_not_ready 0x%x, " - "chip_no 0x%x,\n", (unsigned)h->sdtr_done, - (unsigned)h->use_tagged_qng, (unsigned)h->unit_not_ready, - (unsigned)h->chip_no); + if (scp->use_sg) + dma_unmap_sg(boardp->dev, + (struct scatterlist *)scp->request_buffer, + scp->use_sg, scp->sc_data_direction); + else if (scp->request_bufflen) + dma_unmap_single(boardp->dev, scp->SCp.dma_handle, + scp->request_bufflen, scp->sc_data_direction); - printk(" queue_full_or_busy 0x%x, start_motor 0x%x, scsi_reset_wait " - "%u,\n", (unsigned)h->queue_full_or_busy, - (unsigned)h->start_motor, (unsigned)h->scsi_reset_wait); + ASC_STATS(scp->device->host, done); - printk(" is_in_int %u, max_total_qng %u, cur_total_qng %u, " - "in_critical_cnt %u,\n", (unsigned)h->is_in_int, - (unsigned)h->max_total_qng, (unsigned)h->cur_total_qng, - (unsigned)h->in_critical_cnt); + scp->scsi_done(scp); +} - printk(" last_q_shortage %u, init_state 0x%x, no_scam 0x%x, " - "pci_fix_asyn_xfer 0x%x,\n", (unsigned)h->last_q_shortage, - (unsigned)h->init_state, (unsigned)h->no_scam, - (unsigned)h->pci_fix_asyn_xfer); +static void AscSetBank(PortAddr iop_base, uchar bank) +{ + uchar val; - printk(" cfg 0x%lx, irq_no 0x%x\n", (ulong)h->cfg, (unsigned)h->irq_no); + val = AscGetChipControl(iop_base) & + (~ + (CC_SINGLE_STEP | CC_TEST | CC_DIAG | CC_SCSI_RESET | + CC_CHIP_RESET)); + if (bank == 1) { + val |= CC_BANK_ONE; + } else if (bank == 2) { + val |= CC_DIAG | CC_BANK_ONE; + } else { + val &= ~CC_BANK_ONE; + } + AscSetChipControl(iop_base, val); + return; } -/* - * asc_prt_asc_dvc_cfg() - */ -static void asc_prt_asc_dvc_cfg(ASC_DVC_CFG *h) +static void AscSetChipIH(PortAddr iop_base, ushort ins_code) { - printk("ASC_DVC_CFG at addr 0x%lx\n", (ulong)h); - - printk(" can_tagged_qng 0x%x, cmd_qng_enabled 0x%x,\n", - h->can_tagged_qng, h->cmd_qng_enabled); - printk(" disc_enable 0x%x, sdtr_enable 0x%x,\n", - h->disc_enable, h->sdtr_enable); + AscSetBank(iop_base, 1); + AscWriteChipIH(iop_base, ins_code); + AscSetBank(iop_base, 0); + return; +} - printk - (" chip_scsi_id %d, isa_dma_speed %d, isa_dma_channel %d, chip_version %d,\n", - h->chip_scsi_id, h->isa_dma_speed, h->isa_dma_channel, - h->chip_version); +static int AscStartChip(PortAddr iop_base) +{ + AscSetChipControl(iop_base, 0); + if ((AscGetChipStatus(iop_base) & CSW_HALTED) != 0) { + return (0); + } + return (1); +} - printk - (" pci_device_id %d, lib_serial_no %u, lib_version %u, mcode_date 0x%x,\n", - to_pci_dev(h->dev)->device, h->lib_serial_no, h->lib_version, - h->mcode_date); +static int AscStopChip(PortAddr iop_base) +{ + uchar cc_val; - printk(" mcode_version %d, overrun_buf 0x%lx\n", - h->mcode_version, (ulong)h->overrun_buf); + cc_val = + AscGetChipControl(iop_base) & + (~(CC_SINGLE_STEP | CC_TEST | CC_DIAG)); + AscSetChipControl(iop_base, (uchar)(cc_val | CC_HALT)); + AscSetChipIH(iop_base, INS_HALT); + AscSetChipIH(iop_base, INS_RFLAG_WTM); + if ((AscGetChipStatus(iop_base) & CSW_HALTED) == 0) { + return (0); + } + return (1); } -/* - * asc_prt_asc_scsi_q() - */ -static void asc_prt_asc_scsi_q(ASC_SCSI_Q *q) +static int AscIsChipHalted(PortAddr iop_base) { - ASC_SG_HEAD *sgp; - int i; - - printk("ASC_SCSI_Q at addr 0x%lx\n", (ulong)q); + if ((AscGetChipStatus(iop_base) & CSW_HALTED) != 0) { + if ((AscGetChipControl(iop_base) & CC_HALT) != 0) { + return (1); + } + } + return (0); +} - printk - (" target_ix 0x%x, target_lun %u, srb_ptr 0x%lx, tag_code 0x%x,\n", - q->q2.target_ix, q->q1.target_lun, (ulong)q->q2.srb_ptr, - q->q2.tag_code); +static int AscResetChipAndScsiBus(ASC_DVC_VAR *asc_dvc) +{ + PortAddr iop_base; + int i = 10; - printk - (" data_addr 0x%lx, data_cnt %lu, sense_addr 0x%lx, sense_len %u,\n", - (ulong)le32_to_cpu(q->q1.data_addr), - (ulong)le32_to_cpu(q->q1.data_cnt), - (ulong)le32_to_cpu(q->q1.sense_addr), q->q1.sense_len); + iop_base = asc_dvc->iop_base; + while ((AscGetChipStatus(iop_base) & CSW_SCSI_RESET_ACTIVE) + && (i-- > 0)) { + mdelay(100); + } + AscStopChip(iop_base); + AscSetChipControl(iop_base, CC_CHIP_RESET | CC_SCSI_RESET | CC_HALT); + udelay(60); + AscSetChipIH(iop_base, INS_RFLAG_WTM); + AscSetChipIH(iop_base, INS_HALT); + AscSetChipControl(iop_base, CC_CHIP_RESET | CC_HALT); + AscSetChipControl(iop_base, CC_HALT); + mdelay(200); + AscSetChipStatus(iop_base, CIW_CLR_SCSI_RESET_INT); + AscSetChipStatus(iop_base, 0); + return (AscIsChipHalted(iop_base)); +} - printk(" cdbptr 0x%lx, cdb_len %u, sg_head 0x%lx, sg_queue_cnt %u\n", - (ulong)q->cdbptr, q->q2.cdb_len, - (ulong)q->sg_head, q->q1.sg_queue_cnt); +static int AscFindSignature(PortAddr iop_base) +{ + ushort sig_word; - if (q->sg_head) { - sgp = q->sg_head; - printk("ASC_SG_HEAD at addr 0x%lx\n", (ulong)sgp); - printk(" entry_cnt %u, queue_cnt %u\n", sgp->entry_cnt, - sgp->queue_cnt); - for (i = 0; i < sgp->entry_cnt; i++) { - printk(" [%u]: addr 0x%lx, bytes %lu\n", - i, (ulong)le32_to_cpu(sgp->sg_list[i].addr), - (ulong)le32_to_cpu(sgp->sg_list[i].bytes)); + ASC_DBG2(1, "AscFindSignature: AscGetChipSignatureByte(0x%x) 0x%x\n", + iop_base, AscGetChipSignatureByte(iop_base)); + if (AscGetChipSignatureByte(iop_base) == (uchar)ASC_1000_ID1B) { + ASC_DBG2(1, + "AscFindSignature: AscGetChipSignatureWord(0x%x) 0x%x\n", + iop_base, AscGetChipSignatureWord(iop_base)); + sig_word = AscGetChipSignatureWord(iop_base); + if ((sig_word == (ushort)ASC_1000_ID0W) || + (sig_word == (ushort)ASC_1000_ID0W_FIX)) { + return (1); } - } + return (0); } -/* - * asc_prt_asc_qdone_info() - */ -static void asc_prt_asc_qdone_info(ASC_QDONE_INFO *q) +static void AscEnableInterrupt(PortAddr iop_base) { - printk("ASC_QDONE_INFO at addr 0x%lx\n", (ulong)q); - printk(" srb_ptr 0x%lx, target_ix %u, cdb_len %u, tag_code %u,\n", - (ulong)q->d2.srb_ptr, q->d2.target_ix, q->d2.cdb_len, - q->d2.tag_code); - printk - (" done_stat 0x%x, host_stat 0x%x, scsi_stat 0x%x, scsi_msg 0x%x\n", - q->d3.done_stat, q->d3.host_stat, q->d3.scsi_stat, q->d3.scsi_msg); + ushort cfg; + + cfg = AscGetChipCfgLsw(iop_base); + AscSetChipCfgLsw(iop_base, cfg | ASC_CFG0_HOST_INT_ON); + return; } -/* - * asc_prt_adv_dvc_var() - * - * Display an ADV_DVC_VAR structure. - */ -static void asc_prt_adv_dvc_var(ADV_DVC_VAR *h) +static void AscDisableInterrupt(PortAddr iop_base) { - printk(" ADV_DVC_VAR at addr 0x%lx\n", (ulong)h); + ushort cfg; - printk(" iop_base 0x%lx, err_code 0x%x, ultra_able 0x%x\n", - (ulong)h->iop_base, h->err_code, (unsigned)h->ultra_able); + cfg = AscGetChipCfgLsw(iop_base); + AscSetChipCfgLsw(iop_base, cfg & (~ASC_CFG0_HOST_INT_ON)); + return; +} - printk(" isr_callback 0x%lx, sdtr_able 0x%x, wdtr_able 0x%x\n", - (ulong)h->isr_callback, (unsigned)h->sdtr_able, - (unsigned)h->wdtr_able); +static uchar AscReadLramByte(PortAddr iop_base, ushort addr) +{ + unsigned char byte_data; + unsigned short word_data; - printk(" start_motor 0x%x, scsi_reset_wait 0x%x, irq_no 0x%x,\n", - (unsigned)h->start_motor, - (unsigned)h->scsi_reset_wait, (unsigned)h->irq_no); + if (isodd_word(addr)) { + AscSetChipLramAddr(iop_base, addr - 1); + word_data = AscGetChipLramData(iop_base); + byte_data = (word_data >> 8) & 0xFF; + } else { + AscSetChipLramAddr(iop_base, addr); + word_data = AscGetChipLramData(iop_base); + byte_data = word_data & 0xFF; + } + return byte_data; +} - printk(" max_host_qng %u, max_dvc_qng %u, carr_freelist 0x%lxn\n", - (unsigned)h->max_host_qng, (unsigned)h->max_dvc_qng, - (ulong)h->carr_freelist); +static ushort AscReadLramWord(PortAddr iop_base, ushort addr) +{ + ushort word_data; - printk(" icq_sp 0x%lx, irq_sp 0x%lx\n", - (ulong)h->icq_sp, (ulong)h->irq_sp); + AscSetChipLramAddr(iop_base, addr); + word_data = AscGetChipLramData(iop_base); + return (word_data); +} - printk(" no_scam 0x%x, tagqng_able 0x%x\n", - (unsigned)h->no_scam, (unsigned)h->tagqng_able); +#if CC_VERY_LONG_SG_LIST +static ASC_DCNT AscReadLramDWord(PortAddr iop_base, ushort addr) +{ + ushort val_low, val_high; + ASC_DCNT dword_data; - printk(" chip_scsi_id 0x%x, cfg 0x%lx\n", - (unsigned)h->chip_scsi_id, (ulong)h->cfg); + AscSetChipLramAddr(iop_base, addr); + val_low = AscGetChipLramData(iop_base); + val_high = AscGetChipLramData(iop_base); + dword_data = ((ASC_DCNT) val_high << 16) | (ASC_DCNT) val_low; + return (dword_data); } +#endif /* CC_VERY_LONG_SG_LIST */ -/* - * asc_prt_adv_dvc_cfg() - * - * Display an ADV_DVC_CFG structure. - */ -static void asc_prt_adv_dvc_cfg(ADV_DVC_CFG *h) +static void +AscMemWordSetLram(PortAddr iop_base, ushort s_addr, ushort set_wval, int words) { - printk(" ADV_DVC_CFG at addr 0x%lx\n", (ulong)h); + int i; - printk(" disc_enable 0x%x, termination 0x%x\n", - h->disc_enable, h->termination); + AscSetChipLramAddr(iop_base, s_addr); + for (i = 0; i < words; i++) { + AscSetChipLramData(iop_base, set_wval); + } +} - printk(" chip_version 0x%x, mcode_date 0x%x\n", - h->chip_version, h->mcode_date); +static void AscWriteLramWord(PortAddr iop_base, ushort addr, ushort word_val) +{ + AscSetChipLramAddr(iop_base, addr); + AscSetChipLramData(iop_base, word_val); + return; +} - printk(" mcode_version 0x%x, pci_device_id 0x%x, lib_version %u\n", - h->mcode_version, to_pci_dev(h->dev)->device, h->lib_version); +static void AscWriteLramByte(PortAddr iop_base, ushort addr, uchar byte_val) +{ + ushort word_data; - printk(" control_flag 0x%x\n", h->control_flag); + if (isodd_word(addr)) { + addr--; + word_data = AscReadLramWord(iop_base, addr); + word_data &= 0x00FF; + word_data |= (((ushort)byte_val << 8) & 0xFF00); + } else { + word_data = AscReadLramWord(iop_base, addr); + word_data &= 0xFF00; + word_data |= ((ushort)byte_val & 0x00FF); + } + AscWriteLramWord(iop_base, addr, word_data); + return; } /* - * asc_prt_adv_scsi_req_q() + * Copy 2 bytes to LRAM. * - * Display an ADV_SCSI_REQ_Q structure. + * The source data is assumed to be in little-endian order in memory + * and is maintained in little-endian order when written to LRAM. */ -static void asc_prt_adv_scsi_req_q(ADV_SCSI_REQ_Q *q) +static void +AscMemWordCopyPtrToLram(PortAddr iop_base, + ushort s_addr, uchar *s_buffer, int words) { - int sg_blk_cnt; - struct asc_sg_block *sg_ptr; - - printk("ADV_SCSI_REQ_Q at addr 0x%lx\n", (ulong)q); - - printk(" target_id %u, target_lun %u, srb_ptr 0x%lx, a_flag 0x%x\n", - q->target_id, q->target_lun, (ulong)q->srb_ptr, q->a_flag); - - printk(" cntl 0x%x, data_addr 0x%lx, vdata_addr 0x%lx\n", - q->cntl, (ulong)le32_to_cpu(q->data_addr), (ulong)q->vdata_addr); - - printk(" data_cnt %lu, sense_addr 0x%lx, sense_len %u,\n", - (ulong)le32_to_cpu(q->data_cnt), - (ulong)le32_to_cpu(q->sense_addr), q->sense_len); - - printk - (" cdb_len %u, done_status 0x%x, host_status 0x%x, scsi_status 0x%x\n", - q->cdb_len, q->done_status, q->host_status, q->scsi_status); - - printk(" sg_working_ix 0x%x, target_cmd %u\n", - q->sg_working_ix, q->target_cmd); - - printk(" scsiq_rptr 0x%lx, sg_real_addr 0x%lx, sg_list_ptr 0x%lx\n", - (ulong)le32_to_cpu(q->scsiq_rptr), - (ulong)le32_to_cpu(q->sg_real_addr), (ulong)q->sg_list_ptr); + int i; - /* Display the request's ADV_SG_BLOCK structures. */ - if (q->sg_list_ptr != NULL) { - sg_blk_cnt = 0; - while (1) { - /* - * 'sg_ptr' is a physical address. Convert it to a virtual - * address by indexing 'sg_blk_cnt' into the virtual address - * array 'sg_list_ptr'. - * - * XXX - Assumes all SG physical blocks are virtually contiguous. - */ - sg_ptr = - &(((ADV_SG_BLOCK *)(q->sg_list_ptr))[sg_blk_cnt]); - asc_prt_adv_sgblock(sg_blk_cnt, sg_ptr); - if (sg_ptr->sg_ptr == 0) { - break; - } - sg_blk_cnt++; - } + AscSetChipLramAddr(iop_base, s_addr); + for (i = 0; i < 2 * words; i += 2) { + /* + * On a little-endian system the second argument below + * produces a little-endian ushort which is written to + * LRAM in little-endian order. On a big-endian system + * the second argument produces a big-endian ushort which + * is "transparently" byte-swapped by outpw() and written + * in little-endian order to LRAM. + */ + outpw(iop_base + IOP_RAM_DATA, + ((ushort)s_buffer[i + 1] << 8) | s_buffer[i]); } + return; } /* - * asc_prt_adv_sgblock() + * Copy 4 bytes to LRAM. * - * Display an ADV_SG_BLOCK structure. + * The source data is assumed to be in little-endian order in memory + * and is maintained in little-endian order when writen to LRAM. */ -static void asc_prt_adv_sgblock(int sgblockno, ADV_SG_BLOCK *b) +static void +AscMemDWordCopyPtrToLram(PortAddr iop_base, + ushort s_addr, uchar *s_buffer, int dwords) { int i; - printk(" ASC_SG_BLOCK at addr 0x%lx (sgblockno %d)\n", - (ulong)b, sgblockno); - printk(" sg_cnt %u, sg_ptr 0x%lx\n", - b->sg_cnt, (ulong)le32_to_cpu(b->sg_ptr)); - BUG_ON(b->sg_cnt > NO_OF_SG_PER_BLOCK); - if (b->sg_ptr != 0) - BUG_ON(b->sg_cnt != NO_OF_SG_PER_BLOCK); - for (i = 0; i < b->sg_cnt; i++) { - printk(" [%u]: sg_addr 0x%lx, sg_count 0x%lx\n", - i, (ulong)b->sg_list[i].sg_addr, - (ulong)b->sg_list[i].sg_count); + AscSetChipLramAddr(iop_base, s_addr); + for (i = 0; i < 4 * dwords; i += 4) { + outpw(iop_base + IOP_RAM_DATA, ((ushort)s_buffer[i + 1] << 8) | s_buffer[i]); /* LSW */ + outpw(iop_base + IOP_RAM_DATA, ((ushort)s_buffer[i + 3] << 8) | s_buffer[i + 2]); /* MSW */ } + return; } /* - * asc_prt_hex() + * Copy 2 bytes from LRAM. * - * Print hexadecimal output in 4 byte groupings 32 bytes - * or 8 double-words per line. + * The source data is assumed to be in little-endian order in LRAM + * and is maintained in little-endian order when written to memory. */ -static void asc_prt_hex(char *f, uchar *s, int l) +static void +AscMemWordCopyPtrFromLram(PortAddr iop_base, + ushort s_addr, uchar *d_buffer, int words) { int i; - int j; - int k; - int m; - - printk("%s: (%d bytes)\n", f, l); - - for (i = 0; i < l; i += 32) { - - /* Display a maximum of 8 double-words per line. */ - if ((k = (l - i) / 4) >= 8) { - k = 8; - m = 0; - } else { - m = (l - i) % 4; - } - - for (j = 0; j < k; j++) { - printk(" %2.2X%2.2X%2.2X%2.2X", - (unsigned)s[i + (j * 4)], - (unsigned)s[i + (j * 4) + 1], - (unsigned)s[i + (j * 4) + 2], - (unsigned)s[i + (j * 4) + 3]); - } - - switch (m) { - case 0: - default: - break; - case 1: - printk(" %2.2X", (unsigned)s[i + (j * 4)]); - break; - case 2: - printk(" %2.2X%2.2X", - (unsigned)s[i + (j * 4)], - (unsigned)s[i + (j * 4) + 1]); - break; - case 3: - printk(" %2.2X%2.2X%2.2X", - (unsigned)s[i + (j * 4) + 1], - (unsigned)s[i + (j * 4) + 2], - (unsigned)s[i + (j * 4) + 3]); - break; - } + ushort word; - printk("\n"); + AscSetChipLramAddr(iop_base, s_addr); + for (i = 0; i < 2 * words; i += 2) { + word = inpw(iop_base + IOP_RAM_DATA); + d_buffer[i] = word & 0xff; + d_buffer[i + 1] = (word >> 8) & 0xff; } -} -#endif /* ADVANSYS_DEBUG */ - -static ushort __devinit AscGetEisaChipCfg(PortAddr iop_base) -{ - PortAddr eisa_cfg_iop; - - eisa_cfg_iop = (PortAddr) ASC_GET_EISA_SLOT(iop_base) | - (PortAddr) (ASC_EISA_CFG_IOP_MASK); - return (inpw(eisa_cfg_iop)); + return; } -static uchar __devinit AscSetChipScsiID(PortAddr iop_base, uchar new_host_id) +static ASC_DCNT AscMemSumLramWord(PortAddr iop_base, ushort s_addr, int words) { - ushort cfg_lsw; + ASC_DCNT sum; + int i; - if (AscGetChipScsiID(iop_base) == new_host_id) { - return (new_host_id); + sum = 0L; + for (i = 0; i < words; i++, s_addr += 2) { + sum += AscReadLramWord(iop_base, s_addr); } - cfg_lsw = AscGetChipCfgLsw(iop_base); - cfg_lsw &= 0xF8FF; - cfg_lsw |= (ushort)((new_host_id & ASC_MAX_TID) << 8); - AscSetChipCfgLsw(iop_base, cfg_lsw); - return (AscGetChipScsiID(iop_base)); + return (sum); } -static unsigned char __devinit AscGetChipScsiCtrl(PortAddr iop_base) +static ushort AscInitLram(ASC_DVC_VAR *asc_dvc) { - unsigned char sc; - - AscSetBank(iop_base, 1); - sc = inp(iop_base + IOP_REG_SC); - AscSetBank(iop_base, 0); - return sc; -} + uchar i; + ushort s_addr; + PortAddr iop_base; + ushort warn_code; -static unsigned char __devinit -AscGetChipVersion(PortAddr iop_base, unsigned short bus_type) -{ - if (bus_type & ASC_IS_EISA) { - PortAddr eisa_iop; - unsigned char revision; - eisa_iop = (PortAddr) ASC_GET_EISA_SLOT(iop_base) | - (PortAddr) ASC_EISA_REV_IOP_MASK; - revision = inp(eisa_iop); - return ASC_CHIP_MIN_VER_EISA - 1 + revision; + iop_base = asc_dvc->iop_base; + warn_code = 0; + AscMemWordSetLram(iop_base, ASC_QADR_BEG, 0, + (ushort)(((int)(asc_dvc->max_total_qng + 2 + 1) * + 64) >> 1)); + i = ASC_MIN_ACTIVE_QNO; + s_addr = ASC_QADR_BEG + ASC_QBLK_SIZE; + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD), + (uchar)(i + 1)); + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD), + (uchar)(asc_dvc->max_total_qng)); + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO), + (uchar)i); + i++; + s_addr += ASC_QBLK_SIZE; + for (; i < asc_dvc->max_total_qng; i++, s_addr += ASC_QBLK_SIZE) { + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD), + (uchar)(i + 1)); + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD), + (uchar)(i - 1)); + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO), + (uchar)i); } - return AscGetChipVerNo(iop_base); + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD), + (uchar)ASC_QLINK_END); + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD), + (uchar)(asc_dvc->max_total_qng - 1)); + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO), + (uchar)asc_dvc->max_total_qng); + i++; + s_addr += ASC_QBLK_SIZE; + for (; i <= (uchar)(asc_dvc->max_total_qng + 3); + i++, s_addr += ASC_QBLK_SIZE) { + AscWriteLramByte(iop_base, + (ushort)(s_addr + (ushort)ASC_SCSIQ_B_FWD), i); + AscWriteLramByte(iop_base, + (ushort)(s_addr + (ushort)ASC_SCSIQ_B_BWD), i); + AscWriteLramByte(iop_base, + (ushort)(s_addr + (ushort)ASC_SCSIQ_B_QNO), i); + } + return warn_code; } static ASC_DCNT @@ -6247,865 +4882,6 @@ AscLoadMicroCode(PortAddr iop_base, return (chksum); } -static int AscFindSignature(PortAddr iop_base) -{ - ushort sig_word; - - ASC_DBG2(1, "AscFindSignature: AscGetChipSignatureByte(0x%x) 0x%x\n", - iop_base, AscGetChipSignatureByte(iop_base)); - if (AscGetChipSignatureByte(iop_base) == (uchar)ASC_1000_ID1B) { - ASC_DBG2(1, - "AscFindSignature: AscGetChipSignatureWord(0x%x) 0x%x\n", - iop_base, AscGetChipSignatureWord(iop_base)); - sig_word = AscGetChipSignatureWord(iop_base); - if ((sig_word == (ushort)ASC_1000_ID0W) || - (sig_word == (ushort)ASC_1000_ID0W_FIX)) { - return (1); - } - } - return (0); -} - -static void __devinit AscToggleIRQAct(PortAddr iop_base) -{ - AscSetChipStatus(iop_base, CIW_IRQ_ACT); - AscSetChipStatus(iop_base, 0); - return; -} - -static uchar __devinit AscGetChipIRQ(PortAddr iop_base, ushort bus_type) -{ - ushort cfg_lsw; - uchar chip_irq; - - if ((bus_type & ASC_IS_EISA) != 0) { - cfg_lsw = AscGetEisaChipCfg(iop_base); - chip_irq = (uchar)(((cfg_lsw >> 8) & 0x07) + 10); - if ((chip_irq == 13) || (chip_irq > 15)) { - return (0); - } - return (chip_irq); - } - if ((bus_type & ASC_IS_VL) != 0) { - cfg_lsw = AscGetChipCfgLsw(iop_base); - chip_irq = (uchar)(((cfg_lsw >> 2) & 0x07)); - if ((chip_irq == 0) || (chip_irq == 4) || (chip_irq == 7)) { - return (0); - } - return ((uchar)(chip_irq + (ASC_MIN_IRQ_NO - 1))); - } - cfg_lsw = AscGetChipCfgLsw(iop_base); - chip_irq = (uchar)(((cfg_lsw >> 2) & 0x03)); - if (chip_irq == 3) - chip_irq += (uchar)2; - return ((uchar)(chip_irq + ASC_MIN_IRQ_NO)); -} - -static uchar __devinit -AscSetChipIRQ(PortAddr iop_base, uchar irq_no, ushort bus_type) -{ - ushort cfg_lsw; - - if ((bus_type & ASC_IS_VL) != 0) { - if (irq_no != 0) { - if ((irq_no < ASC_MIN_IRQ_NO) - || (irq_no > ASC_MAX_IRQ_NO)) { - irq_no = 0; - } else { - irq_no -= (uchar)((ASC_MIN_IRQ_NO - 1)); - } - } - cfg_lsw = (ushort)(AscGetChipCfgLsw(iop_base) & 0xFFE3); - cfg_lsw |= (ushort)0x0010; - AscSetChipCfgLsw(iop_base, cfg_lsw); - AscToggleIRQAct(iop_base); - cfg_lsw = (ushort)(AscGetChipCfgLsw(iop_base) & 0xFFE0); - cfg_lsw |= (ushort)((irq_no & 0x07) << 2); - AscSetChipCfgLsw(iop_base, cfg_lsw); - AscToggleIRQAct(iop_base); - return (AscGetChipIRQ(iop_base, bus_type)); - } - if ((bus_type & (ASC_IS_ISA)) != 0) { - if (irq_no == 15) - irq_no -= (uchar)2; - irq_no -= (uchar)ASC_MIN_IRQ_NO; - cfg_lsw = (ushort)(AscGetChipCfgLsw(iop_base) & 0xFFF3); - cfg_lsw |= (ushort)((irq_no & 0x03) << 2); - AscSetChipCfgLsw(iop_base, cfg_lsw); - return (AscGetChipIRQ(iop_base, bus_type)); - } - return (0); -} - -#ifdef CONFIG_ISA -static void __devinit AscEnableIsaDma(uchar dma_channel) -{ - if (dma_channel < 4) { - outp(0x000B, (ushort)(0xC0 | dma_channel)); - outp(0x000A, dma_channel); - } else if (dma_channel < 8) { - outp(0x00D6, (ushort)(0xC0 | (dma_channel - 4))); - outp(0x00D4, (ushort)(dma_channel - 4)); - } - return; -} -#endif /* CONFIG_ISA */ - -static int AscIsrChipHalted(ASC_DVC_VAR *asc_dvc) -{ - EXT_MSG ext_msg; - EXT_MSG out_msg; - ushort halt_q_addr; - int sdtr_accept; - ushort int_halt_code; - ASC_SCSI_BIT_ID_TYPE scsi_busy; - ASC_SCSI_BIT_ID_TYPE target_id; - PortAddr iop_base; - uchar tag_code; - uchar q_status; - uchar halt_qp; - uchar sdtr_data; - uchar target_ix; - uchar q_cntl, tid_no; - uchar cur_dvc_qng; - uchar asyn_sdtr; - uchar scsi_status; - asc_board_t *boardp; - - BUG_ON(!asc_dvc->drv_ptr); - boardp = asc_dvc->drv_ptr; - - iop_base = asc_dvc->iop_base; - int_halt_code = AscReadLramWord(iop_base, ASCV_HALTCODE_W); - - halt_qp = AscReadLramByte(iop_base, ASCV_CURCDB_B); - halt_q_addr = ASC_QNO_TO_QADDR(halt_qp); - target_ix = AscReadLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_TARGET_IX)); - q_cntl = AscReadLramByte(iop_base, - (ushort)(halt_q_addr + (ushort)ASC_SCSIQ_B_CNTL)); - tid_no = ASC_TIX_TO_TID(target_ix); - target_id = (uchar)ASC_TID_TO_TARGET_ID(tid_no); - if (asc_dvc->pci_fix_asyn_xfer & target_id) { - asyn_sdtr = ASYN_SDTR_DATA_FIX_PCI_REV_AB; - } else { - asyn_sdtr = 0; - } - if (int_halt_code == ASC_HALT_DISABLE_ASYN_USE_SYN_FIX) { - if (asc_dvc->pci_fix_asyn_xfer & target_id) { - AscSetChipSDTR(iop_base, 0, tid_no); - boardp->sdtr_data[tid_no] = 0; - } - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } else if (int_halt_code == ASC_HALT_ENABLE_ASYN_USE_SYN_FIX) { - if (asc_dvc->pci_fix_asyn_xfer & target_id) { - AscSetChipSDTR(iop_base, asyn_sdtr, tid_no); - boardp->sdtr_data[tid_no] = asyn_sdtr; - } - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } else if (int_halt_code == ASC_HALT_EXTMSG_IN) { - AscMemWordCopyPtrFromLram(iop_base, - ASCV_MSGIN_BEG, - (uchar *)&ext_msg, - sizeof(EXT_MSG) >> 1); - - if (ext_msg.msg_type == EXTENDED_MESSAGE && - ext_msg.msg_req == EXTENDED_SDTR && - ext_msg.msg_len == MS_SDTR_LEN) { - sdtr_accept = TRUE; - if ((ext_msg.req_ack_offset > ASC_SYN_MAX_OFFSET)) { - - sdtr_accept = FALSE; - ext_msg.req_ack_offset = ASC_SYN_MAX_OFFSET; - } - if ((ext_msg.xfer_period < - asc_dvc->sdtr_period_tbl[asc_dvc-> - host_init_sdtr_index]) - || (ext_msg.xfer_period > - asc_dvc->sdtr_period_tbl[asc_dvc-> - max_sdtr_index])) { - sdtr_accept = FALSE; - ext_msg.xfer_period = - asc_dvc->sdtr_period_tbl[asc_dvc-> - host_init_sdtr_index]; - } - if (sdtr_accept) { - sdtr_data = - AscCalSDTRData(asc_dvc, ext_msg.xfer_period, - ext_msg.req_ack_offset); - if ((sdtr_data == 0xFF)) { - - q_cntl |= QC_MSG_OUT; - asc_dvc->init_sdtr &= ~target_id; - asc_dvc->sdtr_done &= ~target_id; - AscSetChipSDTR(iop_base, asyn_sdtr, - tid_no); - boardp->sdtr_data[tid_no] = asyn_sdtr; - } - } - if (ext_msg.req_ack_offset == 0) { - - q_cntl &= ~QC_MSG_OUT; - asc_dvc->init_sdtr &= ~target_id; - asc_dvc->sdtr_done &= ~target_id; - AscSetChipSDTR(iop_base, asyn_sdtr, tid_no); - } else { - if (sdtr_accept && (q_cntl & QC_MSG_OUT)) { - - q_cntl &= ~QC_MSG_OUT; - asc_dvc->sdtr_done |= target_id; - asc_dvc->init_sdtr |= target_id; - asc_dvc->pci_fix_asyn_xfer &= - ~target_id; - sdtr_data = - AscCalSDTRData(asc_dvc, - ext_msg.xfer_period, - ext_msg. - req_ack_offset); - AscSetChipSDTR(iop_base, sdtr_data, - tid_no); - boardp->sdtr_data[tid_no] = sdtr_data; - } else { - - q_cntl |= QC_MSG_OUT; - AscMsgOutSDTR(asc_dvc, - ext_msg.xfer_period, - ext_msg.req_ack_offset); - asc_dvc->pci_fix_asyn_xfer &= - ~target_id; - sdtr_data = - AscCalSDTRData(asc_dvc, - ext_msg.xfer_period, - ext_msg. - req_ack_offset); - AscSetChipSDTR(iop_base, sdtr_data, - tid_no); - boardp->sdtr_data[tid_no] = sdtr_data; - asc_dvc->sdtr_done |= target_id; - asc_dvc->init_sdtr |= target_id; - } - } - - AscWriteLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_CNTL), - q_cntl); - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } else if (ext_msg.msg_type == EXTENDED_MESSAGE && - ext_msg.msg_req == EXTENDED_WDTR && - ext_msg.msg_len == MS_WDTR_LEN) { - - ext_msg.wdtr_width = 0; - AscMemWordCopyPtrToLram(iop_base, - ASCV_MSGOUT_BEG, - (uchar *)&ext_msg, - sizeof(EXT_MSG) >> 1); - q_cntl |= QC_MSG_OUT; - AscWriteLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_CNTL), - q_cntl); - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } else { - - ext_msg.msg_type = MESSAGE_REJECT; - AscMemWordCopyPtrToLram(iop_base, - ASCV_MSGOUT_BEG, - (uchar *)&ext_msg, - sizeof(EXT_MSG) >> 1); - q_cntl |= QC_MSG_OUT; - AscWriteLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_CNTL), - q_cntl); - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } - } else if (int_halt_code == ASC_HALT_CHK_CONDITION) { - - q_cntl |= QC_REQ_SENSE; - - if ((asc_dvc->init_sdtr & target_id) != 0) { - - asc_dvc->sdtr_done &= ~target_id; - - sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no); - q_cntl |= QC_MSG_OUT; - AscMsgOutSDTR(asc_dvc, - asc_dvc-> - sdtr_period_tbl[(sdtr_data >> 4) & - (uchar)(asc_dvc-> - max_sdtr_index - - 1)], - (uchar)(sdtr_data & (uchar) - ASC_SYN_MAX_OFFSET)); - } - - AscWriteLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_CNTL), q_cntl); - - tag_code = AscReadLramByte(iop_base, - (ushort)(halt_q_addr + (ushort) - ASC_SCSIQ_B_TAG_CODE)); - tag_code &= 0xDC; - if ((asc_dvc->pci_fix_asyn_xfer & target_id) - && !(asc_dvc->pci_fix_asyn_xfer_always & target_id) - ) { - - tag_code |= (ASC_TAG_FLAG_DISABLE_DISCONNECT - | ASC_TAG_FLAG_DISABLE_ASYN_USE_SYN_FIX); - - } - AscWriteLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_TAG_CODE), - tag_code); - - q_status = AscReadLramByte(iop_base, - (ushort)(halt_q_addr + (ushort) - ASC_SCSIQ_B_STATUS)); - q_status |= (QS_READY | QS_BUSY); - AscWriteLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_STATUS), - q_status); - - scsi_busy = AscReadLramByte(iop_base, (ushort)ASCV_SCSIBUSY_B); - scsi_busy &= ~target_id; - AscWriteLramByte(iop_base, (ushort)ASCV_SCSIBUSY_B, scsi_busy); - - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } else if (int_halt_code == ASC_HALT_SDTR_REJECTED) { - - AscMemWordCopyPtrFromLram(iop_base, - ASCV_MSGOUT_BEG, - (uchar *)&out_msg, - sizeof(EXT_MSG) >> 1); - - if ((out_msg.msg_type == EXTENDED_MESSAGE) && - (out_msg.msg_len == MS_SDTR_LEN) && - (out_msg.msg_req == EXTENDED_SDTR)) { - - asc_dvc->init_sdtr &= ~target_id; - asc_dvc->sdtr_done &= ~target_id; - AscSetChipSDTR(iop_base, asyn_sdtr, tid_no); - boardp->sdtr_data[tid_no] = asyn_sdtr; - } - q_cntl &= ~QC_MSG_OUT; - AscWriteLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_CNTL), q_cntl); - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } else if (int_halt_code == ASC_HALT_SS_QUEUE_FULL) { - - scsi_status = AscReadLramByte(iop_base, - (ushort)((ushort)halt_q_addr + - (ushort) - ASC_SCSIQ_SCSI_STATUS)); - cur_dvc_qng = - AscReadLramByte(iop_base, - (ushort)((ushort)ASC_QADR_BEG + - (ushort)target_ix)); - if ((cur_dvc_qng > 0) && (asc_dvc->cur_dvc_qng[tid_no] > 0)) { - - scsi_busy = AscReadLramByte(iop_base, - (ushort)ASCV_SCSIBUSY_B); - scsi_busy |= target_id; - AscWriteLramByte(iop_base, - (ushort)ASCV_SCSIBUSY_B, scsi_busy); - asc_dvc->queue_full_or_busy |= target_id; - - if (scsi_status == SAM_STAT_TASK_SET_FULL) { - if (cur_dvc_qng > ASC_MIN_TAGGED_CMD) { - cur_dvc_qng -= 1; - asc_dvc->max_dvc_qng[tid_no] = - cur_dvc_qng; - - AscWriteLramByte(iop_base, - (ushort)((ushort) - ASCV_MAX_DVC_QNG_BEG - + (ushort) - tid_no), - cur_dvc_qng); - - /* - * Set the device queue depth to the - * number of active requests when the - * QUEUE FULL condition was encountered. - */ - boardp->queue_full |= target_id; - boardp->queue_full_cnt[tid_no] = - cur_dvc_qng; - } - } - } - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } -#if CC_VERY_LONG_SG_LIST - else if (int_halt_code == ASC_HALT_HOST_COPY_SG_LIST_TO_RISC) { - uchar q_no; - ushort q_addr; - uchar sg_wk_q_no; - uchar first_sg_wk_q_no; - ASC_SCSI_Q *scsiq; /* Ptr to driver request. */ - ASC_SG_HEAD *sg_head; /* Ptr to driver SG request. */ - ASC_SG_LIST_Q scsi_sg_q; /* Structure written to queue. */ - ushort sg_list_dwords; - ushort sg_entry_cnt; - uchar next_qp; - int i; - - q_no = AscReadLramByte(iop_base, (ushort)ASCV_REQ_SG_LIST_QP); - if (q_no == ASC_QLINK_END) - return 0; - - q_addr = ASC_QNO_TO_QADDR(q_no); - - /* - * Convert the request's SRB pointer to a host ASC_SCSI_REQ - * structure pointer using a macro provided by the driver. - * The ASC_SCSI_REQ pointer provides a pointer to the - * host ASC_SG_HEAD structure. - */ - /* Read request's SRB pointer. */ - scsiq = (ASC_SCSI_Q *) - ASC_SRB2SCSIQ(ASC_U32_TO_VADDR(AscReadLramDWord(iop_base, - (ushort) - (q_addr + - ASC_SCSIQ_D_SRBPTR)))); - - /* - * Get request's first and working SG queue. - */ - sg_wk_q_no = AscReadLramByte(iop_base, - (ushort)(q_addr + - ASC_SCSIQ_B_SG_WK_QP)); - - first_sg_wk_q_no = AscReadLramByte(iop_base, - (ushort)(q_addr + - ASC_SCSIQ_B_FIRST_SG_WK_QP)); - - /* - * Reset request's working SG queue back to the - * first SG queue. - */ - AscWriteLramByte(iop_base, - (ushort)(q_addr + - (ushort)ASC_SCSIQ_B_SG_WK_QP), - first_sg_wk_q_no); - - sg_head = scsiq->sg_head; - - /* - * Set sg_entry_cnt to the number of SG elements - * that will be completed on this interrupt. - * - * Note: The allocated SG queues contain ASC_MAX_SG_LIST - 1 - * SG elements. The data_cnt and data_addr fields which - * add 1 to the SG element capacity are not used when - * restarting SG handling after a halt. - */ - if (scsiq->remain_sg_entry_cnt > (ASC_MAX_SG_LIST - 1)) { - sg_entry_cnt = ASC_MAX_SG_LIST - 1; - - /* - * Keep track of remaining number of SG elements that - * will need to be handled on the next interrupt. - */ - scsiq->remain_sg_entry_cnt -= (ASC_MAX_SG_LIST - 1); - } else { - sg_entry_cnt = scsiq->remain_sg_entry_cnt; - scsiq->remain_sg_entry_cnt = 0; - } - - /* - * Copy SG elements into the list of allocated SG queues. - * - * Last index completed is saved in scsiq->next_sg_index. - */ - next_qp = first_sg_wk_q_no; - q_addr = ASC_QNO_TO_QADDR(next_qp); - scsi_sg_q.sg_head_qp = q_no; - scsi_sg_q.cntl = QCSG_SG_XFER_LIST; - for (i = 0; i < sg_head->queue_cnt; i++) { - scsi_sg_q.seq_no = i + 1; - if (sg_entry_cnt > ASC_SG_LIST_PER_Q) { - sg_list_dwords = (uchar)(ASC_SG_LIST_PER_Q * 2); - sg_entry_cnt -= ASC_SG_LIST_PER_Q; - /* - * After very first SG queue RISC FW uses next - * SG queue first element then checks sg_list_cnt - * against zero and then decrements, so set - * sg_list_cnt 1 less than number of SG elements - * in each SG queue. - */ - scsi_sg_q.sg_list_cnt = ASC_SG_LIST_PER_Q - 1; - scsi_sg_q.sg_cur_list_cnt = - ASC_SG_LIST_PER_Q - 1; - } else { - /* - * This is the last SG queue in the list of - * allocated SG queues. If there are more - * SG elements than will fit in the allocated - * queues, then set the QCSG_SG_XFER_MORE flag. - */ - if (scsiq->remain_sg_entry_cnt != 0) { - scsi_sg_q.cntl |= QCSG_SG_XFER_MORE; - } else { - scsi_sg_q.cntl |= QCSG_SG_XFER_END; - } - /* equals sg_entry_cnt * 2 */ - sg_list_dwords = sg_entry_cnt << 1; - scsi_sg_q.sg_list_cnt = sg_entry_cnt - 1; - scsi_sg_q.sg_cur_list_cnt = sg_entry_cnt - 1; - sg_entry_cnt = 0; - } - - scsi_sg_q.q_no = next_qp; - AscMemWordCopyPtrToLram(iop_base, - q_addr + ASC_SCSIQ_SGHD_CPY_BEG, - (uchar *)&scsi_sg_q, - sizeof(ASC_SG_LIST_Q) >> 1); - - AscMemDWordCopyPtrToLram(iop_base, - q_addr + ASC_SGQ_LIST_BEG, - (uchar *)&sg_head-> - sg_list[scsiq->next_sg_index], - sg_list_dwords); - - scsiq->next_sg_index += ASC_SG_LIST_PER_Q; - - /* - * If the just completed SG queue contained the - * last SG element, then no more SG queues need - * to be written. - */ - if (scsi_sg_q.cntl & QCSG_SG_XFER_END) { - break; - } - - next_qp = AscReadLramByte(iop_base, - (ushort)(q_addr + - ASC_SCSIQ_B_FWD)); - q_addr = ASC_QNO_TO_QADDR(next_qp); - } - - /* - * Clear the halt condition so the RISC will be restarted - * after the return. - */ - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } -#endif /* CC_VERY_LONG_SG_LIST */ - return (0); -} - -static uchar -_AscCopyLramScsiDoneQ(PortAddr iop_base, - ushort q_addr, - ASC_QDONE_INFO *scsiq, ASC_DCNT max_dma_count) -{ - ushort _val; - uchar sg_queue_cnt; - - DvcGetQinfo(iop_base, - q_addr + ASC_SCSIQ_DONE_INFO_BEG, - (uchar *)scsiq, - (sizeof(ASC_SCSIQ_2) + sizeof(ASC_SCSIQ_3)) / 2); - - _val = AscReadLramWord(iop_base, - (ushort)(q_addr + (ushort)ASC_SCSIQ_B_STATUS)); - scsiq->q_status = (uchar)_val; - scsiq->q_no = (uchar)(_val >> 8); - _val = AscReadLramWord(iop_base, - (ushort)(q_addr + (ushort)ASC_SCSIQ_B_CNTL)); - scsiq->cntl = (uchar)_val; - sg_queue_cnt = (uchar)(_val >> 8); - _val = AscReadLramWord(iop_base, - (ushort)(q_addr + - (ushort)ASC_SCSIQ_B_SENSE_LEN)); - scsiq->sense_len = (uchar)_val; - scsiq->extra_bytes = (uchar)(_val >> 8); - - /* - * Read high word of remain bytes from alternate location. - */ - scsiq->remain_bytes = (((ADV_DCNT)AscReadLramWord(iop_base, - (ushort)(q_addr + - (ushort) - ASC_SCSIQ_W_ALT_DC1))) - << 16); - /* - * Read low word of remain bytes from original location. - */ - scsiq->remain_bytes += AscReadLramWord(iop_base, - (ushort)(q_addr + (ushort) - ASC_SCSIQ_DW_REMAIN_XFER_CNT)); - - scsiq->remain_bytes &= max_dma_count; - return (sg_queue_cnt); -} - -static int AscIsrQDone(ASC_DVC_VAR *asc_dvc) -{ - uchar next_qp; - uchar n_q_used; - uchar sg_list_qp; - uchar sg_queue_cnt; - uchar q_cnt; - uchar done_q_tail; - uchar tid_no; - ASC_SCSI_BIT_ID_TYPE scsi_busy; - ASC_SCSI_BIT_ID_TYPE target_id; - PortAddr iop_base; - ushort q_addr; - ushort sg_q_addr; - uchar cur_target_qng; - ASC_QDONE_INFO scsiq_buf; - ASC_QDONE_INFO *scsiq; - int false_overrun; - - iop_base = asc_dvc->iop_base; - n_q_used = 1; - scsiq = (ASC_QDONE_INFO *)&scsiq_buf; - done_q_tail = (uchar)AscGetVarDoneQTail(iop_base); - q_addr = ASC_QNO_TO_QADDR(done_q_tail); - next_qp = AscReadLramByte(iop_base, - (ushort)(q_addr + (ushort)ASC_SCSIQ_B_FWD)); - if (next_qp != ASC_QLINK_END) { - AscPutVarDoneQTail(iop_base, next_qp); - q_addr = ASC_QNO_TO_QADDR(next_qp); - sg_queue_cnt = _AscCopyLramScsiDoneQ(iop_base, q_addr, scsiq, - asc_dvc->max_dma_count); - AscWriteLramByte(iop_base, - (ushort)(q_addr + - (ushort)ASC_SCSIQ_B_STATUS), - (uchar)(scsiq-> - q_status & (uchar)~(QS_READY | - QS_ABORTED))); - tid_no = ASC_TIX_TO_TID(scsiq->d2.target_ix); - target_id = ASC_TIX_TO_TARGET_ID(scsiq->d2.target_ix); - if ((scsiq->cntl & QC_SG_HEAD) != 0) { - sg_q_addr = q_addr; - sg_list_qp = next_qp; - for (q_cnt = 0; q_cnt < sg_queue_cnt; q_cnt++) { - sg_list_qp = AscReadLramByte(iop_base, - (ushort)(sg_q_addr - + (ushort) - ASC_SCSIQ_B_FWD)); - sg_q_addr = ASC_QNO_TO_QADDR(sg_list_qp); - if (sg_list_qp == ASC_QLINK_END) { - AscSetLibErrorCode(asc_dvc, - ASCQ_ERR_SG_Q_LINKS); - scsiq->d3.done_stat = QD_WITH_ERROR; - scsiq->d3.host_stat = - QHSTA_D_QDONE_SG_LIST_CORRUPTED; - goto FATAL_ERR_QDONE; - } - AscWriteLramByte(iop_base, - (ushort)(sg_q_addr + (ushort) - ASC_SCSIQ_B_STATUS), - QS_FREE); - } - n_q_used = sg_queue_cnt + 1; - AscPutVarDoneQTail(iop_base, sg_list_qp); - } - if (asc_dvc->queue_full_or_busy & target_id) { - cur_target_qng = AscReadLramByte(iop_base, - (ushort)((ushort) - ASC_QADR_BEG - + (ushort) - scsiq->d2. - target_ix)); - if (cur_target_qng < asc_dvc->max_dvc_qng[tid_no]) { - scsi_busy = AscReadLramByte(iop_base, (ushort) - ASCV_SCSIBUSY_B); - scsi_busy &= ~target_id; - AscWriteLramByte(iop_base, - (ushort)ASCV_SCSIBUSY_B, - scsi_busy); - asc_dvc->queue_full_or_busy &= ~target_id; - } - } - if (asc_dvc->cur_total_qng >= n_q_used) { - asc_dvc->cur_total_qng -= n_q_used; - if (asc_dvc->cur_dvc_qng[tid_no] != 0) { - asc_dvc->cur_dvc_qng[tid_no]--; - } - } else { - AscSetLibErrorCode(asc_dvc, ASCQ_ERR_CUR_QNG); - scsiq->d3.done_stat = QD_WITH_ERROR; - goto FATAL_ERR_QDONE; - } - if ((scsiq->d2.srb_ptr == 0UL) || - ((scsiq->q_status & QS_ABORTED) != 0)) { - return (0x11); - } else if (scsiq->q_status == QS_DONE) { - false_overrun = FALSE; - if (scsiq->extra_bytes != 0) { - scsiq->remain_bytes += - (ADV_DCNT)scsiq->extra_bytes; - } - if (scsiq->d3.done_stat == QD_WITH_ERROR) { - if (scsiq->d3.host_stat == - QHSTA_M_DATA_OVER_RUN) { - if ((scsiq-> - cntl & (QC_DATA_IN | QC_DATA_OUT)) - == 0) { - scsiq->d3.done_stat = - QD_NO_ERROR; - scsiq->d3.host_stat = - QHSTA_NO_ERROR; - } else if (false_overrun) { - scsiq->d3.done_stat = - QD_NO_ERROR; - scsiq->d3.host_stat = - QHSTA_NO_ERROR; - } - } else if (scsiq->d3.host_stat == - QHSTA_M_HUNG_REQ_SCSI_BUS_RESET) { - AscStopChip(iop_base); - AscSetChipControl(iop_base, - (uchar)(CC_SCSI_RESET - | CC_HALT)); - udelay(60); - AscSetChipControl(iop_base, CC_HALT); - AscSetChipStatus(iop_base, - CIW_CLR_SCSI_RESET_INT); - AscSetChipStatus(iop_base, 0); - AscSetChipControl(iop_base, 0); - } - } - if ((scsiq->cntl & QC_NO_CALLBACK) == 0) { - asc_isr_callback(asc_dvc, scsiq); - } else { - if ((AscReadLramByte(iop_base, - (ushort)(q_addr + (ushort) - ASC_SCSIQ_CDB_BEG)) - == START_STOP)) { - asc_dvc->unit_not_ready &= ~target_id; - if (scsiq->d3.done_stat != QD_NO_ERROR) { - asc_dvc->start_motor &= - ~target_id; - } - } - } - return (1); - } else { - AscSetLibErrorCode(asc_dvc, ASCQ_ERR_Q_STATUS); - FATAL_ERR_QDONE: - if ((scsiq->cntl & QC_NO_CALLBACK) == 0) { - asc_isr_callback(asc_dvc, scsiq); - } - return (0x80); - } - } - return (0); -} - -static int AscISR(ASC_DVC_VAR *asc_dvc) -{ - ASC_CS_TYPE chipstat; - PortAddr iop_base; - ushort saved_ram_addr; - uchar ctrl_reg; - uchar saved_ctrl_reg; - int int_pending; - int status; - uchar host_flag; - - iop_base = asc_dvc->iop_base; - int_pending = FALSE; - - if (AscIsIntPending(iop_base) == 0) { - return int_pending; - } - - if ((asc_dvc->init_state & ASC_INIT_STATE_END_LOAD_MC) == 0) { - return (ERR); - } - if (asc_dvc->in_critical_cnt != 0) { - AscSetLibErrorCode(asc_dvc, ASCQ_ERR_ISR_ON_CRITICAL); - return (ERR); - } - if (asc_dvc->is_in_int) { - AscSetLibErrorCode(asc_dvc, ASCQ_ERR_ISR_RE_ENTRY); - return (ERR); - } - asc_dvc->is_in_int = TRUE; - ctrl_reg = AscGetChipControl(iop_base); - saved_ctrl_reg = ctrl_reg & (~(CC_SCSI_RESET | CC_CHIP_RESET | - CC_SINGLE_STEP | CC_DIAG | CC_TEST)); - chipstat = AscGetChipStatus(iop_base); - if (chipstat & CSW_SCSI_RESET_LATCH) { - if (!(asc_dvc->bus_type & (ASC_IS_VL | ASC_IS_EISA))) { - int i = 10; - int_pending = TRUE; - asc_dvc->sdtr_done = 0; - saved_ctrl_reg &= (uchar)(~CC_HALT); - while ((AscGetChipStatus(iop_base) & - CSW_SCSI_RESET_ACTIVE) && (i-- > 0)) { - mdelay(100); - } - AscSetChipControl(iop_base, (CC_CHIP_RESET | CC_HALT)); - AscSetChipControl(iop_base, CC_HALT); - AscSetChipStatus(iop_base, CIW_CLR_SCSI_RESET_INT); - AscSetChipStatus(iop_base, 0); - chipstat = AscGetChipStatus(iop_base); - } - } - saved_ram_addr = AscGetChipLramAddr(iop_base); - host_flag = AscReadLramByte(iop_base, - ASCV_HOST_FLAG_B) & - (uchar)(~ASC_HOST_FLAG_IN_ISR); - AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, - (uchar)(host_flag | (uchar)ASC_HOST_FLAG_IN_ISR)); - if ((chipstat & CSW_INT_PENDING) - || (int_pending) - ) { - AscAckInterrupt(iop_base); - int_pending = TRUE; - if ((chipstat & CSW_HALTED) && (ctrl_reg & CC_SINGLE_STEP)) { - if (AscIsrChipHalted(asc_dvc) == ERR) { - goto ISR_REPORT_QDONE_FATAL_ERROR; - } else { - saved_ctrl_reg &= (uchar)(~CC_HALT); - } - } else { - ISR_REPORT_QDONE_FATAL_ERROR: - if ((asc_dvc->dvc_cntl & ASC_CNTL_INT_MULTI_Q) != 0) { - while (((status = - AscIsrQDone(asc_dvc)) & 0x01) != 0) { - } - } else { - do { - if ((status = - AscIsrQDone(asc_dvc)) == 1) { - break; - } - } while (status == 0x11); - } - if ((status & 0x80) != 0) - int_pending = ERR; - } - } - AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, host_flag); - AscSetChipLramAddr(iop_base, saved_ram_addr); - AscSetChipControl(iop_base, saved_ctrl_reg); - asc_dvc->is_in_int = FALSE; - return (int_pending); -} - /* Microcode buffer is kept after initialization for error recovery. */ static uchar _asc_mcode_buf[] = { 0x01, 0x03, 0x01, 0x19, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, @@ -7302,1977 +5078,9 @@ static uchar _asc_mcode_buf[] = { 0xF8, 0x88, 0x11, 0x23, 0xA1, 0x01, 0x04, 0x23, 0xA0, 0x01, 0xE6, 0x84, }; -static ushort _asc_mcode_size = sizeof(_asc_mcode_buf); +static unsigned short _asc_mcode_size = sizeof(_asc_mcode_buf); static ADV_DCNT _asc_mcode_chksum = 0x012C453FUL; -#define ASC_SYN_OFFSET_ONE_DISABLE_LIST 16 -static uchar _syn_offset_one_disable_cmd[ASC_SYN_OFFSET_ONE_DISABLE_LIST] = { - INQUIRY, - REQUEST_SENSE, - READ_CAPACITY, - READ_TOC, - MODE_SELECT, - MODE_SENSE, - MODE_SELECT_10, - MODE_SENSE_10, - 0xFF, - 0xFF, - 0xFF, - 0xFF, - 0xFF, - 0xFF, - 0xFF, - 0xFF -}; - -static int AscExeScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq) -{ - PortAddr iop_base; - int sta; - int n_q_required; - int disable_syn_offset_one_fix; - int i; - ASC_PADDR addr; - ushort sg_entry_cnt = 0; - ushort sg_entry_cnt_minus_one = 0; - uchar target_ix; - uchar tid_no; - uchar sdtr_data; - uchar extra_bytes; - uchar scsi_cmd; - uchar disable_cmd; - ASC_SG_HEAD *sg_head; - ASC_DCNT data_cnt; - - iop_base = asc_dvc->iop_base; - sg_head = scsiq->sg_head; - if (asc_dvc->err_code != 0) - return (ERR); - scsiq->q1.q_no = 0; - if ((scsiq->q2.tag_code & ASC_TAG_FLAG_EXTRA_BYTES) == 0) { - scsiq->q1.extra_bytes = 0; - } - sta = 0; - target_ix = scsiq->q2.target_ix; - tid_no = ASC_TIX_TO_TID(target_ix); - n_q_required = 1; - if (scsiq->cdbptr[0] == REQUEST_SENSE) { - if ((asc_dvc->init_sdtr & scsiq->q1.target_id) != 0) { - asc_dvc->sdtr_done &= ~scsiq->q1.target_id; - sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no); - AscMsgOutSDTR(asc_dvc, - asc_dvc-> - sdtr_period_tbl[(sdtr_data >> 4) & - (uchar)(asc_dvc-> - max_sdtr_index - - 1)], - (uchar)(sdtr_data & (uchar) - ASC_SYN_MAX_OFFSET)); - scsiq->q1.cntl |= (QC_MSG_OUT | QC_URGENT); - } - } - if (asc_dvc->in_critical_cnt != 0) { - AscSetLibErrorCode(asc_dvc, ASCQ_ERR_CRITICAL_RE_ENTRY); - return (ERR); - } - asc_dvc->in_critical_cnt++; - if ((scsiq->q1.cntl & QC_SG_HEAD) != 0) { - if ((sg_entry_cnt = sg_head->entry_cnt) == 0) { - asc_dvc->in_critical_cnt--; - return (ERR); - } -#if !CC_VERY_LONG_SG_LIST - if (sg_entry_cnt > ASC_MAX_SG_LIST) { - asc_dvc->in_critical_cnt--; - return (ERR); - } -#endif /* !CC_VERY_LONG_SG_LIST */ - if (sg_entry_cnt == 1) { - scsiq->q1.data_addr = - (ADV_PADDR)sg_head->sg_list[0].addr; - scsiq->q1.data_cnt = - (ADV_DCNT)sg_head->sg_list[0].bytes; - scsiq->q1.cntl &= ~(QC_SG_HEAD | QC_SG_SWAP_QUEUE); - } - sg_entry_cnt_minus_one = sg_entry_cnt - 1; - } - scsi_cmd = scsiq->cdbptr[0]; - disable_syn_offset_one_fix = FALSE; - if ((asc_dvc->pci_fix_asyn_xfer & scsiq->q1.target_id) && - !(asc_dvc->pci_fix_asyn_xfer_always & scsiq->q1.target_id)) { - if (scsiq->q1.cntl & QC_SG_HEAD) { - data_cnt = 0; - for (i = 0; i < sg_entry_cnt; i++) { - data_cnt += - (ADV_DCNT)le32_to_cpu(sg_head->sg_list[i]. - bytes); - } - } else { - data_cnt = le32_to_cpu(scsiq->q1.data_cnt); - } - if (data_cnt != 0UL) { - if (data_cnt < 512UL) { - disable_syn_offset_one_fix = TRUE; - } else { - for (i = 0; i < ASC_SYN_OFFSET_ONE_DISABLE_LIST; - i++) { - disable_cmd = - _syn_offset_one_disable_cmd[i]; - if (disable_cmd == 0xFF) { - break; - } - if (scsi_cmd == disable_cmd) { - disable_syn_offset_one_fix = - TRUE; - break; - } - } - } - } - } - if (disable_syn_offset_one_fix) { - scsiq->q2.tag_code &= ~MSG_SIMPLE_TAG; - scsiq->q2.tag_code |= (ASC_TAG_FLAG_DISABLE_ASYN_USE_SYN_FIX | - ASC_TAG_FLAG_DISABLE_DISCONNECT); - } else { - scsiq->q2.tag_code &= 0x27; - } - if ((scsiq->q1.cntl & QC_SG_HEAD) != 0) { - if (asc_dvc->bug_fix_cntl) { - if (asc_dvc->bug_fix_cntl & ASC_BUG_FIX_IF_NOT_DWB) { - if ((scsi_cmd == READ_6) || - (scsi_cmd == READ_10)) { - addr = - (ADV_PADDR)le32_to_cpu(sg_head-> - sg_list - [sg_entry_cnt_minus_one]. - addr) + - (ADV_DCNT)le32_to_cpu(sg_head-> - sg_list - [sg_entry_cnt_minus_one]. - bytes); - extra_bytes = - (uchar)((ushort)addr & 0x0003); - if ((extra_bytes != 0) - && - ((scsiq->q2. - tag_code & - ASC_TAG_FLAG_EXTRA_BYTES) - == 0)) { - scsiq->q2.tag_code |= - ASC_TAG_FLAG_EXTRA_BYTES; - scsiq->q1.extra_bytes = - extra_bytes; - data_cnt = - le32_to_cpu(sg_head-> - sg_list - [sg_entry_cnt_minus_one]. - bytes); - data_cnt -= - (ASC_DCNT) extra_bytes; - sg_head-> - sg_list - [sg_entry_cnt_minus_one]. - bytes = - cpu_to_le32(data_cnt); - } - } - } - } - sg_head->entry_to_copy = sg_head->entry_cnt; -#if CC_VERY_LONG_SG_LIST - /* - * Set the sg_entry_cnt to the maximum possible. The rest of - * the SG elements will be copied when the RISC completes the - * SG elements that fit and halts. - */ - if (sg_entry_cnt > ASC_MAX_SG_LIST) { - sg_entry_cnt = ASC_MAX_SG_LIST; - } -#endif /* CC_VERY_LONG_SG_LIST */ - n_q_required = AscSgListToQueue(sg_entry_cnt); - if ((AscGetNumOfFreeQueue(asc_dvc, target_ix, n_q_required) >= - (uint) n_q_required) - || ((scsiq->q1.cntl & QC_URGENT) != 0)) { - if ((sta = - AscSendScsiQueue(asc_dvc, scsiq, - n_q_required)) == 1) { - asc_dvc->in_critical_cnt--; - return (sta); - } - } - } else { - if (asc_dvc->bug_fix_cntl) { - if (asc_dvc->bug_fix_cntl & ASC_BUG_FIX_IF_NOT_DWB) { - if ((scsi_cmd == READ_6) || - (scsi_cmd == READ_10)) { - addr = - le32_to_cpu(scsiq->q1.data_addr) + - le32_to_cpu(scsiq->q1.data_cnt); - extra_bytes = - (uchar)((ushort)addr & 0x0003); - if ((extra_bytes != 0) - && - ((scsiq->q2. - tag_code & - ASC_TAG_FLAG_EXTRA_BYTES) - == 0)) { - data_cnt = - le32_to_cpu(scsiq->q1. - data_cnt); - if (((ushort)data_cnt & 0x01FF) - == 0) { - scsiq->q2.tag_code |= - ASC_TAG_FLAG_EXTRA_BYTES; - data_cnt -= (ASC_DCNT) - extra_bytes; - scsiq->q1.data_cnt = - cpu_to_le32 - (data_cnt); - scsiq->q1.extra_bytes = - extra_bytes; - } - } - } - } - } - n_q_required = 1; - if ((AscGetNumOfFreeQueue(asc_dvc, target_ix, 1) >= 1) || - ((scsiq->q1.cntl & QC_URGENT) != 0)) { - if ((sta = AscSendScsiQueue(asc_dvc, scsiq, - n_q_required)) == 1) { - asc_dvc->in_critical_cnt--; - return (sta); - } - } - } - asc_dvc->in_critical_cnt--; - return (sta); -} - -static int -AscSendScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar n_q_required) -{ - PortAddr iop_base; - uchar free_q_head; - uchar next_qp; - uchar tid_no; - uchar target_ix; - int sta; - - iop_base = asc_dvc->iop_base; - target_ix = scsiq->q2.target_ix; - tid_no = ASC_TIX_TO_TID(target_ix); - sta = 0; - free_q_head = (uchar)AscGetVarFreeQHead(iop_base); - if (n_q_required > 1) { - next_qp = AscAllocMultipleFreeQueue(iop_base, free_q_head, - (uchar)n_q_required); - if (next_qp != ASC_QLINK_END) { - asc_dvc->last_q_shortage = 0; - scsiq->sg_head->queue_cnt = n_q_required - 1; - scsiq->q1.q_no = free_q_head; - sta = AscPutReadySgListQueue(asc_dvc, scsiq, - free_q_head); - } - } else if (n_q_required == 1) { - next_qp = AscAllocFreeQueue(iop_base, free_q_head); - if (next_qp != ASC_QLINK_END) { - scsiq->q1.q_no = free_q_head; - sta = AscPutReadyQueue(asc_dvc, scsiq, free_q_head); - } - } - if (sta == 1) { - AscPutVarFreeQHead(iop_base, next_qp); - asc_dvc->cur_total_qng += (uchar)(n_q_required); - asc_dvc->cur_dvc_qng[tid_no]++; - } - return sta; -} - -static int AscSgListToQueue(int sg_list) -{ - int n_sg_list_qs; - - n_sg_list_qs = ((sg_list - 1) / ASC_SG_LIST_PER_Q); - if (((sg_list - 1) % ASC_SG_LIST_PER_Q) != 0) - n_sg_list_qs++; - return (n_sg_list_qs + 1); -} - -static uint -AscGetNumOfFreeQueue(ASC_DVC_VAR *asc_dvc, uchar target_ix, uchar n_qs) -{ - uint cur_used_qs; - uint cur_free_qs; - ASC_SCSI_BIT_ID_TYPE target_id; - uchar tid_no; - - target_id = ASC_TIX_TO_TARGET_ID(target_ix); - tid_no = ASC_TIX_TO_TID(target_ix); - if ((asc_dvc->unit_not_ready & target_id) || - (asc_dvc->queue_full_or_busy & target_id)) { - return (0); - } - if (n_qs == 1) { - cur_used_qs = (uint) asc_dvc->cur_total_qng + - (uint) asc_dvc->last_q_shortage + (uint) ASC_MIN_FREE_Q; - } else { - cur_used_qs = (uint) asc_dvc->cur_total_qng + - (uint) ASC_MIN_FREE_Q; - } - if ((uint) (cur_used_qs + n_qs) <= (uint) asc_dvc->max_total_qng) { - cur_free_qs = (uint) asc_dvc->max_total_qng - cur_used_qs; - if (asc_dvc->cur_dvc_qng[tid_no] >= - asc_dvc->max_dvc_qng[tid_no]) { - return (0); - } - return (cur_free_qs); - } - if (n_qs > 1) { - if ((n_qs > asc_dvc->last_q_shortage) - && (n_qs <= (asc_dvc->max_total_qng - ASC_MIN_FREE_Q))) { - asc_dvc->last_q_shortage = n_qs; - } - } - return (0); -} - -static int AscPutReadyQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar q_no) -{ - ushort q_addr; - uchar tid_no; - uchar sdtr_data; - uchar syn_period_ix; - uchar syn_offset; - PortAddr iop_base; - - iop_base = asc_dvc->iop_base; - if (((asc_dvc->init_sdtr & scsiq->q1.target_id) != 0) && - ((asc_dvc->sdtr_done & scsiq->q1.target_id) == 0)) { - tid_no = ASC_TIX_TO_TID(scsiq->q2.target_ix); - sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no); - syn_period_ix = - (sdtr_data >> 4) & (asc_dvc->max_sdtr_index - 1); - syn_offset = sdtr_data & ASC_SYN_MAX_OFFSET; - AscMsgOutSDTR(asc_dvc, - asc_dvc->sdtr_period_tbl[syn_period_ix], - syn_offset); - scsiq->q1.cntl |= QC_MSG_OUT; - } - q_addr = ASC_QNO_TO_QADDR(q_no); - if ((scsiq->q1.target_id & asc_dvc->use_tagged_qng) == 0) { - scsiq->q2.tag_code &= ~MSG_SIMPLE_TAG; - } - scsiq->q1.status = QS_FREE; - AscMemWordCopyPtrToLram(iop_base, - q_addr + ASC_SCSIQ_CDB_BEG, - (uchar *)scsiq->cdbptr, scsiq->q2.cdb_len >> 1); - - DvcPutScsiQ(iop_base, - q_addr + ASC_SCSIQ_CPY_BEG, - (uchar *)&scsiq->q1.cntl, - ((sizeof(ASC_SCSIQ_1) + sizeof(ASC_SCSIQ_2)) / 2) - 1); - AscWriteLramWord(iop_base, - (ushort)(q_addr + (ushort)ASC_SCSIQ_B_STATUS), - (ushort)(((ushort)scsiq->q1. - q_no << 8) | (ushort)QS_READY)); - return (1); -} - -static int -AscPutReadySgListQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar q_no) -{ - int sta; - int i; - ASC_SG_HEAD *sg_head; - ASC_SG_LIST_Q scsi_sg_q; - ASC_DCNT saved_data_addr; - ASC_DCNT saved_data_cnt; - PortAddr iop_base; - ushort sg_list_dwords; - ushort sg_index; - ushort sg_entry_cnt; - ushort q_addr; - uchar next_qp; - - iop_base = asc_dvc->iop_base; - sg_head = scsiq->sg_head; - saved_data_addr = scsiq->q1.data_addr; - saved_data_cnt = scsiq->q1.data_cnt; - scsiq->q1.data_addr = (ASC_PADDR) sg_head->sg_list[0].addr; - scsiq->q1.data_cnt = (ASC_DCNT) sg_head->sg_list[0].bytes; -#if CC_VERY_LONG_SG_LIST - /* - * If sg_head->entry_cnt is greater than ASC_MAX_SG_LIST - * then not all SG elements will fit in the allocated queues. - * The rest of the SG elements will be copied when the RISC - * completes the SG elements that fit and halts. - */ - if (sg_head->entry_cnt > ASC_MAX_SG_LIST) { - /* - * Set sg_entry_cnt to be the number of SG elements that - * will fit in the allocated SG queues. It is minus 1, because - * the first SG element is handled above. ASC_MAX_SG_LIST is - * already inflated by 1 to account for this. For example it - * may be 50 which is 1 + 7 queues * 7 SG elements. - */ - sg_entry_cnt = ASC_MAX_SG_LIST - 1; - - /* - * Keep track of remaining number of SG elements that will - * need to be handled from a_isr.c. - */ - scsiq->remain_sg_entry_cnt = - sg_head->entry_cnt - ASC_MAX_SG_LIST; - } else { -#endif /* CC_VERY_LONG_SG_LIST */ - /* - * Set sg_entry_cnt to be the number of SG elements that - * will fit in the allocated SG queues. It is minus 1, because - * the first SG element is handled above. - */ - sg_entry_cnt = sg_head->entry_cnt - 1; -#if CC_VERY_LONG_SG_LIST - } -#endif /* CC_VERY_LONG_SG_LIST */ - if (sg_entry_cnt != 0) { - scsiq->q1.cntl |= QC_SG_HEAD; - q_addr = ASC_QNO_TO_QADDR(q_no); - sg_index = 1; - scsiq->q1.sg_queue_cnt = sg_head->queue_cnt; - scsi_sg_q.sg_head_qp = q_no; - scsi_sg_q.cntl = QCSG_SG_XFER_LIST; - for (i = 0; i < sg_head->queue_cnt; i++) { - scsi_sg_q.seq_no = i + 1; - if (sg_entry_cnt > ASC_SG_LIST_PER_Q) { - sg_list_dwords = (uchar)(ASC_SG_LIST_PER_Q * 2); - sg_entry_cnt -= ASC_SG_LIST_PER_Q; - if (i == 0) { - scsi_sg_q.sg_list_cnt = - ASC_SG_LIST_PER_Q; - scsi_sg_q.sg_cur_list_cnt = - ASC_SG_LIST_PER_Q; - } else { - scsi_sg_q.sg_list_cnt = - ASC_SG_LIST_PER_Q - 1; - scsi_sg_q.sg_cur_list_cnt = - ASC_SG_LIST_PER_Q - 1; - } - } else { -#if CC_VERY_LONG_SG_LIST - /* - * This is the last SG queue in the list of - * allocated SG queues. If there are more - * SG elements than will fit in the allocated - * queues, then set the QCSG_SG_XFER_MORE flag. - */ - if (sg_head->entry_cnt > ASC_MAX_SG_LIST) { - scsi_sg_q.cntl |= QCSG_SG_XFER_MORE; - } else { -#endif /* CC_VERY_LONG_SG_LIST */ - scsi_sg_q.cntl |= QCSG_SG_XFER_END; -#if CC_VERY_LONG_SG_LIST - } -#endif /* CC_VERY_LONG_SG_LIST */ - sg_list_dwords = sg_entry_cnt << 1; - if (i == 0) { - scsi_sg_q.sg_list_cnt = sg_entry_cnt; - scsi_sg_q.sg_cur_list_cnt = - sg_entry_cnt; - } else { - scsi_sg_q.sg_list_cnt = - sg_entry_cnt - 1; - scsi_sg_q.sg_cur_list_cnt = - sg_entry_cnt - 1; - } - sg_entry_cnt = 0; - } - next_qp = AscReadLramByte(iop_base, - (ushort)(q_addr + - ASC_SCSIQ_B_FWD)); - scsi_sg_q.q_no = next_qp; - q_addr = ASC_QNO_TO_QADDR(next_qp); - AscMemWordCopyPtrToLram(iop_base, - q_addr + ASC_SCSIQ_SGHD_CPY_BEG, - (uchar *)&scsi_sg_q, - sizeof(ASC_SG_LIST_Q) >> 1); - AscMemDWordCopyPtrToLram(iop_base, - q_addr + ASC_SGQ_LIST_BEG, - (uchar *)&sg_head-> - sg_list[sg_index], - sg_list_dwords); - sg_index += ASC_SG_LIST_PER_Q; - scsiq->next_sg_index = sg_index; - } - } else { - scsiq->q1.cntl &= ~QC_SG_HEAD; - } - sta = AscPutReadyQueue(asc_dvc, scsiq, q_no); - scsiq->q1.data_addr = saved_data_addr; - scsiq->q1.data_cnt = saved_data_cnt; - return (sta); -} - -static int -AscSetRunChipSynRegAtID(PortAddr iop_base, uchar tid_no, uchar sdtr_data) -{ - int sta = FALSE; - - if (AscHostReqRiscHalt(iop_base)) { - sta = AscSetChipSynRegAtID(iop_base, tid_no, sdtr_data); - AscStartChip(iop_base); - return (sta); - } - return (sta); -} - -static int AscSetChipSynRegAtID(PortAddr iop_base, uchar id, uchar sdtr_data) -{ - ASC_SCSI_BIT_ID_TYPE org_id; - int i; - int sta = TRUE; - - AscSetBank(iop_base, 1); - org_id = AscReadChipDvcID(iop_base); - for (i = 0; i <= ASC_MAX_TID; i++) { - if (org_id == (0x01 << i)) - break; - } - org_id = (ASC_SCSI_BIT_ID_TYPE) i; - AscWriteChipDvcID(iop_base, id); - if (AscReadChipDvcID(iop_base) == (0x01 << id)) { - AscSetBank(iop_base, 0); - AscSetChipSyn(iop_base, sdtr_data); - if (AscGetChipSyn(iop_base) != sdtr_data) { - sta = FALSE; - } - } else { - sta = FALSE; - } - AscSetBank(iop_base, 1); - AscWriteChipDvcID(iop_base, org_id); - AscSetBank(iop_base, 0); - return (sta); -} - -static ushort AscInitLram(ASC_DVC_VAR *asc_dvc) -{ - uchar i; - ushort s_addr; - PortAddr iop_base; - ushort warn_code; - - iop_base = asc_dvc->iop_base; - warn_code = 0; - AscMemWordSetLram(iop_base, ASC_QADR_BEG, 0, - (ushort)(((int)(asc_dvc->max_total_qng + 2 + 1) * - 64) >> 1) - ); - i = ASC_MIN_ACTIVE_QNO; - s_addr = ASC_QADR_BEG + ASC_QBLK_SIZE; - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD), - (uchar)(i + 1)); - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD), - (uchar)(asc_dvc->max_total_qng)); - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO), - (uchar)i); - i++; - s_addr += ASC_QBLK_SIZE; - for (; i < asc_dvc->max_total_qng; i++, s_addr += ASC_QBLK_SIZE) { - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD), - (uchar)(i + 1)); - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD), - (uchar)(i - 1)); - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO), - (uchar)i); - } - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD), - (uchar)ASC_QLINK_END); - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD), - (uchar)(asc_dvc->max_total_qng - 1)); - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO), - (uchar)asc_dvc->max_total_qng); - i++; - s_addr += ASC_QBLK_SIZE; - for (; i <= (uchar)(asc_dvc->max_total_qng + 3); - i++, s_addr += ASC_QBLK_SIZE) { - AscWriteLramByte(iop_base, - (ushort)(s_addr + (ushort)ASC_SCSIQ_B_FWD), i); - AscWriteLramByte(iop_base, - (ushort)(s_addr + (ushort)ASC_SCSIQ_B_BWD), i); - AscWriteLramByte(iop_base, - (ushort)(s_addr + (ushort)ASC_SCSIQ_B_QNO), i); - } - return (warn_code); -} - -static void AscInitQLinkVar(ASC_DVC_VAR *asc_dvc) -{ - PortAddr iop_base; - int i; - ushort lram_addr; - - iop_base = asc_dvc->iop_base; - AscPutRiscVarFreeQHead(iop_base, 1); - AscPutRiscVarDoneQTail(iop_base, asc_dvc->max_total_qng); - AscPutVarFreeQHead(iop_base, 1); - AscPutVarDoneQTail(iop_base, asc_dvc->max_total_qng); - AscWriteLramByte(iop_base, ASCV_BUSY_QHEAD_B, - (uchar)((int)asc_dvc->max_total_qng + 1)); - AscWriteLramByte(iop_base, ASCV_DISC1_QHEAD_B, - (uchar)((int)asc_dvc->max_total_qng + 2)); - AscWriteLramByte(iop_base, (ushort)ASCV_TOTAL_READY_Q_B, - asc_dvc->max_total_qng); - AscWriteLramWord(iop_base, ASCV_ASCDVC_ERR_CODE_W, 0); - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, 0); - AscWriteLramByte(iop_base, ASCV_SCSIBUSY_B, 0); - AscWriteLramByte(iop_base, ASCV_WTM_FLAG_B, 0); - AscPutQDoneInProgress(iop_base, 0); - lram_addr = ASC_QADR_BEG; - for (i = 0; i < 32; i++, lram_addr += 2) { - AscWriteLramWord(iop_base, lram_addr, 0); - } -} - -static int AscSetLibErrorCode(ASC_DVC_VAR *asc_dvc, ushort err_code) -{ - if (asc_dvc->err_code == 0) { - asc_dvc->err_code = err_code; - AscWriteLramWord(asc_dvc->iop_base, ASCV_ASCDVC_ERR_CODE_W, - err_code); - } - return (err_code); -} - -static uchar -AscMsgOutSDTR(ASC_DVC_VAR *asc_dvc, uchar sdtr_period, uchar sdtr_offset) -{ - EXT_MSG sdtr_buf; - uchar sdtr_period_index; - PortAddr iop_base; - - iop_base = asc_dvc->iop_base; - sdtr_buf.msg_type = EXTENDED_MESSAGE; - sdtr_buf.msg_len = MS_SDTR_LEN; - sdtr_buf.msg_req = EXTENDED_SDTR; - sdtr_buf.xfer_period = sdtr_period; - sdtr_offset &= ASC_SYN_MAX_OFFSET; - sdtr_buf.req_ack_offset = sdtr_offset; - if ((sdtr_period_index = - AscGetSynPeriodIndex(asc_dvc, sdtr_period)) <= - asc_dvc->max_sdtr_index) { - AscMemWordCopyPtrToLram(iop_base, - ASCV_MSGOUT_BEG, - (uchar *)&sdtr_buf, - sizeof(EXT_MSG) >> 1); - return ((sdtr_period_index << 4) | sdtr_offset); - } else { - - sdtr_buf.req_ack_offset = 0; - AscMemWordCopyPtrToLram(iop_base, - ASCV_MSGOUT_BEG, - (uchar *)&sdtr_buf, - sizeof(EXT_MSG) >> 1); - return (0); - } -} - -static uchar -AscCalSDTRData(ASC_DVC_VAR *asc_dvc, uchar sdtr_period, uchar syn_offset) -{ - uchar byte; - uchar sdtr_period_ix; - - sdtr_period_ix = AscGetSynPeriodIndex(asc_dvc, sdtr_period); - if ((sdtr_period_ix > asc_dvc->max_sdtr_index) - ) { - return (0xFF); - } - byte = (sdtr_period_ix << 4) | (syn_offset & ASC_SYN_MAX_OFFSET); - return (byte); -} - -static void AscSetChipSDTR(PortAddr iop_base, uchar sdtr_data, uchar tid_no) -{ - AscSetChipSynRegAtID(iop_base, tid_no, sdtr_data); - AscPutMCodeSDTRDoneAtID(iop_base, tid_no, sdtr_data); - return; -} - -static uchar AscGetSynPeriodIndex(ASC_DVC_VAR *asc_dvc, uchar syn_time) -{ - uchar *period_table; - int max_index; - int min_index; - int i; - - period_table = asc_dvc->sdtr_period_tbl; - max_index = (int)asc_dvc->max_sdtr_index; - min_index = (int)asc_dvc->host_init_sdtr_index; - if ((syn_time <= period_table[max_index])) { - for (i = min_index; i < (max_index - 1); i++) { - if (syn_time <= period_table[i]) { - return ((uchar)i); - } - } - return ((uchar)max_index); - } else { - return ((uchar)(max_index + 1)); - } -} - -static uchar AscAllocFreeQueue(PortAddr iop_base, uchar free_q_head) -{ - ushort q_addr; - uchar next_qp; - uchar q_status; - - q_addr = ASC_QNO_TO_QADDR(free_q_head); - q_status = (uchar)AscReadLramByte(iop_base, - (ushort)(q_addr + - ASC_SCSIQ_B_STATUS)); - next_qp = AscReadLramByte(iop_base, (ushort)(q_addr + ASC_SCSIQ_B_FWD)); - if (((q_status & QS_READY) == 0) && (next_qp != ASC_QLINK_END)) { - return (next_qp); - } - return (ASC_QLINK_END); -} - -static uchar -AscAllocMultipleFreeQueue(PortAddr iop_base, uchar free_q_head, uchar n_free_q) -{ - uchar i; - - for (i = 0; i < n_free_q; i++) { - if ((free_q_head = AscAllocFreeQueue(iop_base, free_q_head)) - == ASC_QLINK_END) { - return (ASC_QLINK_END); - } - } - return (free_q_head); -} - -static int AscHostReqRiscHalt(PortAddr iop_base) -{ - int count = 0; - int sta = 0; - uchar saved_stop_code; - - if (AscIsChipHalted(iop_base)) - return (1); - saved_stop_code = AscReadLramByte(iop_base, ASCV_STOP_CODE_B); - AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, - ASC_STOP_HOST_REQ_RISC_HALT | ASC_STOP_REQ_RISC_STOP); - do { - if (AscIsChipHalted(iop_base)) { - sta = 1; - break; - } - mdelay(100); - } while (count++ < 20); - AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, saved_stop_code); - return (sta); -} - -static int AscStopQueueExe(PortAddr iop_base) -{ - int count = 0; - - if (AscReadLramByte(iop_base, ASCV_STOP_CODE_B) == 0) { - AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, - ASC_STOP_REQ_RISC_STOP); - do { - if (AscReadLramByte(iop_base, ASCV_STOP_CODE_B) & - ASC_STOP_ACK_RISC_STOP) { - return (1); - } - mdelay(100); - } while (count++ < 20); - } - return (0); -} - -static int AscStartChip(PortAddr iop_base) -{ - AscSetChipControl(iop_base, 0); - if ((AscGetChipStatus(iop_base) & CSW_HALTED) != 0) { - return (0); - } - return (1); -} - -static int AscStopChip(PortAddr iop_base) -{ - uchar cc_val; - - cc_val = - AscGetChipControl(iop_base) & - (~(CC_SINGLE_STEP | CC_TEST | CC_DIAG)); - AscSetChipControl(iop_base, (uchar)(cc_val | CC_HALT)); - AscSetChipIH(iop_base, INS_HALT); - AscSetChipIH(iop_base, INS_RFLAG_WTM); - if ((AscGetChipStatus(iop_base) & CSW_HALTED) == 0) { - return (0); - } - return (1); -} - -static int AscIsChipHalted(PortAddr iop_base) -{ - if ((AscGetChipStatus(iop_base) & CSW_HALTED) != 0) { - if ((AscGetChipControl(iop_base) & CC_HALT) != 0) { - return (1); - } - } - return (0); -} - -static void AscSetChipIH(PortAddr iop_base, ushort ins_code) -{ - AscSetBank(iop_base, 1); - AscWriteChipIH(iop_base, ins_code); - AscSetBank(iop_base, 0); - return; -} - -static void AscAckInterrupt(PortAddr iop_base) -{ - uchar host_flag; - uchar risc_flag; - ushort loop; - - loop = 0; - do { - risc_flag = AscReadLramByte(iop_base, ASCV_RISC_FLAG_B); - if (loop++ > 0x7FFF) { - break; - } - } while ((risc_flag & ASC_RISC_FLAG_GEN_INT) != 0); - host_flag = - AscReadLramByte(iop_base, - ASCV_HOST_FLAG_B) & (~ASC_HOST_FLAG_ACK_INT); - AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, - (uchar)(host_flag | ASC_HOST_FLAG_ACK_INT)); - AscSetChipStatus(iop_base, CIW_INT_ACK); - loop = 0; - while (AscGetChipStatus(iop_base) & CSW_INT_PENDING) { - AscSetChipStatus(iop_base, CIW_INT_ACK); - if (loop++ > 3) { - break; - } - } - AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, host_flag); - return; -} - -static void AscDisableInterrupt(PortAddr iop_base) -{ - ushort cfg; - - cfg = AscGetChipCfgLsw(iop_base); - AscSetChipCfgLsw(iop_base, cfg & (~ASC_CFG0_HOST_INT_ON)); - return; -} - -static void AscEnableInterrupt(PortAddr iop_base) -{ - ushort cfg; - - cfg = AscGetChipCfgLsw(iop_base); - AscSetChipCfgLsw(iop_base, cfg | ASC_CFG0_HOST_INT_ON); - return; -} - -static void AscSetBank(PortAddr iop_base, uchar bank) -{ - uchar val; - - val = AscGetChipControl(iop_base) & - (~ - (CC_SINGLE_STEP | CC_TEST | CC_DIAG | CC_SCSI_RESET | - CC_CHIP_RESET)); - if (bank == 1) { - val |= CC_BANK_ONE; - } else if (bank == 2) { - val |= CC_DIAG | CC_BANK_ONE; - } else { - val &= ~CC_BANK_ONE; - } - AscSetChipControl(iop_base, val); - return; -} - -static int AscResetChipAndScsiBus(ASC_DVC_VAR *asc_dvc) -{ - PortAddr iop_base; - int i = 10; - - iop_base = asc_dvc->iop_base; - while ((AscGetChipStatus(iop_base) & CSW_SCSI_RESET_ACTIVE) - && (i-- > 0)) { - mdelay(100); - } - AscStopChip(iop_base); - AscSetChipControl(iop_base, CC_CHIP_RESET | CC_SCSI_RESET | CC_HALT); - udelay(60); - AscSetChipIH(iop_base, INS_RFLAG_WTM); - AscSetChipIH(iop_base, INS_HALT); - AscSetChipControl(iop_base, CC_CHIP_RESET | CC_HALT); - AscSetChipControl(iop_base, CC_HALT); - mdelay(200); - AscSetChipStatus(iop_base, CIW_CLR_SCSI_RESET_INT); - AscSetChipStatus(iop_base, 0); - return (AscIsChipHalted(iop_base)); -} - -static ASC_DCNT __devinit AscGetMaxDmaCount(ushort bus_type) -{ - if (bus_type & ASC_IS_ISA) - return ASC_MAX_ISA_DMA_COUNT; - else if (bus_type & (ASC_IS_EISA | ASC_IS_VL)) - return ASC_MAX_VL_DMA_COUNT; - return ASC_MAX_PCI_DMA_COUNT; -} - -#ifdef CONFIG_ISA -static ushort __devinit AscGetIsaDmaChannel(PortAddr iop_base) -{ - ushort channel; - - channel = AscGetChipCfgLsw(iop_base) & 0x0003; - if (channel == 0x03) - return (0); - else if (channel == 0x00) - return (7); - return (channel + 4); -} - -static ushort __devinit AscSetIsaDmaChannel(PortAddr iop_base, ushort dma_channel) -{ - ushort cfg_lsw; - uchar value; - - if ((dma_channel >= 5) && (dma_channel <= 7)) { - if (dma_channel == 7) - value = 0x00; - else - value = dma_channel - 4; - cfg_lsw = AscGetChipCfgLsw(iop_base) & 0xFFFC; - cfg_lsw |= value; - AscSetChipCfgLsw(iop_base, cfg_lsw); - return (AscGetIsaDmaChannel(iop_base)); - } - return (0); -} - -static uchar __devinit AscSetIsaDmaSpeed(PortAddr iop_base, uchar speed_value) -{ - speed_value &= 0x07; - AscSetBank(iop_base, 1); - AscWriteChipDmaSpeed(iop_base, speed_value); - AscSetBank(iop_base, 0); - return (AscGetIsaDmaSpeed(iop_base)); -} - -static uchar __devinit AscGetIsaDmaSpeed(PortAddr iop_base) -{ - uchar speed_value; - - AscSetBank(iop_base, 1); - speed_value = AscReadChipDmaSpeed(iop_base); - speed_value &= 0x07; - AscSetBank(iop_base, 0); - return (speed_value); -} -#endif /* CONFIG_ISA */ - -static int __devinit AscInitGetConfig(asc_board_t *boardp) -{ - ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; - unsigned short warn_code = 0; - - asc_dvc->init_state = ASC_INIT_STATE_BEG_GET_CFG; - if (asc_dvc->err_code != 0) - return asc_dvc->err_code; - - if (AscFindSignature(asc_dvc->iop_base)) { - warn_code |= AscInitAscDvcVar(asc_dvc); - warn_code |= AscInitFromEEP(asc_dvc); - asc_dvc->init_state |= ASC_INIT_STATE_END_GET_CFG; - if (asc_dvc->scsi_reset_wait > ASC_MAX_SCSI_RESET_WAIT) - asc_dvc->scsi_reset_wait = ASC_MAX_SCSI_RESET_WAIT; - } else { - asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; - } - - switch (warn_code) { - case 0: /* No error */ - break; - case ASC_WARN_IO_PORT_ROTATE: - ASC_PRINT1("AscInitGetConfig: board %d: I/O port address " - "modified\n", boardp->id); - break; - case ASC_WARN_AUTO_CONFIG: - ASC_PRINT1("AscInitGetConfig: board %d: I/O port increment " - "switch enabled\n", boardp->id); - break; - case ASC_WARN_EEPROM_CHKSUM: - ASC_PRINT1("AscInitGetConfig: board %d: EEPROM checksum " - "error\n", boardp->id); - break; - case ASC_WARN_IRQ_MODIFIED: - ASC_PRINT1("AscInitGetConfig: board %d: IRQ modified\n", - boardp->id); - break; - case ASC_WARN_CMD_QNG_CONFLICT: - ASC_PRINT1("AscInitGetConfig: board %d: tag queuing enabled " - "w/o disconnects\n", boardp->id); - break; - default: - ASC_PRINT2("AscInitGetConfig: board %d: unknown warning: " - "0x%x\n", boardp->id, warn_code); - break; - } - - if (asc_dvc->err_code != 0) { - ASC_PRINT3("AscInitGetConfig: board %d error: init_state 0x%x, " - "err_code 0x%x\n", boardp->id, asc_dvc->init_state, - asc_dvc->err_code); - } - - return asc_dvc->err_code; -} - -static int __devinit AscInitSetConfig(struct pci_dev *pdev, asc_board_t *boardp) -{ - ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; - PortAddr iop_base = asc_dvc->iop_base; - unsigned short cfg_msw; - unsigned short warn_code = 0; - - asc_dvc->init_state |= ASC_INIT_STATE_BEG_SET_CFG; - if (asc_dvc->err_code != 0) - return asc_dvc->err_code; - if (!AscFindSignature(asc_dvc->iop_base)) { - asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; - return asc_dvc->err_code; - } - - cfg_msw = AscGetChipCfgMsw(iop_base); - if ((cfg_msw & ASC_CFG_MSW_CLR_MASK) != 0) { - cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; - warn_code |= ASC_WARN_CFG_MSW_RECOVER; - AscSetChipCfgMsw(iop_base, cfg_msw); - } - if ((asc_dvc->cfg->cmd_qng_enabled & asc_dvc->cfg->disc_enable) != - asc_dvc->cfg->cmd_qng_enabled) { - asc_dvc->cfg->disc_enable = asc_dvc->cfg->cmd_qng_enabled; - warn_code |= ASC_WARN_CMD_QNG_CONFLICT; - } - if (AscGetChipStatus(iop_base) & CSW_AUTO_CONFIG) { - warn_code |= ASC_WARN_AUTO_CONFIG; - } - if ((asc_dvc->bus_type & (ASC_IS_ISA | ASC_IS_VL)) != 0) { - if (AscSetChipIRQ(iop_base, asc_dvc->irq_no, asc_dvc->bus_type) - != asc_dvc->irq_no) { - asc_dvc->err_code |= ASC_IERR_SET_IRQ_NO; - } - } -#ifdef CONFIG_PCI - if (asc_dvc->bus_type & ASC_IS_PCI) { - cfg_msw &= 0xFFC0; - AscSetChipCfgMsw(iop_base, cfg_msw); - if ((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == ASC_IS_PCI_ULTRA) { - } else { - if ((pdev->device == PCI_DEVICE_ID_ASP_1200A) || - (pdev->device == PCI_DEVICE_ID_ASP_ABP940)) { - asc_dvc->bug_fix_cntl |= ASC_BUG_FIX_IF_NOT_DWB; - asc_dvc->bug_fix_cntl |= - ASC_BUG_FIX_ASYN_USE_SYN; - } - } - } else -#endif /* CONFIG_PCI */ - if (asc_dvc->bus_type == ASC_IS_ISAPNP) { - if (AscGetChipVersion(iop_base, asc_dvc->bus_type) - == ASC_CHIP_VER_ASYN_BUG) { - asc_dvc->bug_fix_cntl |= ASC_BUG_FIX_ASYN_USE_SYN; - } - } - if (AscSetChipScsiID(iop_base, asc_dvc->cfg->chip_scsi_id) != - asc_dvc->cfg->chip_scsi_id) { - asc_dvc->err_code |= ASC_IERR_SET_SCSI_ID; - } -#ifdef CONFIG_ISA - if (asc_dvc->bus_type & ASC_IS_ISA) { - AscSetIsaDmaChannel(iop_base, asc_dvc->cfg->isa_dma_channel); - AscSetIsaDmaSpeed(iop_base, asc_dvc->cfg->isa_dma_speed); - } -#endif /* CONFIG_ISA */ - - asc_dvc->init_state |= ASC_INIT_STATE_END_SET_CFG; - - switch (warn_code) { - case 0: /* No error. */ - break; - case ASC_WARN_IO_PORT_ROTATE: - ASC_PRINT1("AscInitSetConfig: board %d: I/O port address " - "modified\n", boardp->id); - break; - case ASC_WARN_AUTO_CONFIG: - ASC_PRINT1("AscInitSetConfig: board %d: I/O port increment " - "switch enabled\n", boardp->id); - break; - case ASC_WARN_EEPROM_CHKSUM: - ASC_PRINT1("AscInitSetConfig: board %d: EEPROM checksum " - "error\n", boardp->id); - break; - case ASC_WARN_IRQ_MODIFIED: - ASC_PRINT1("AscInitSetConfig: board %d: IRQ modified\n", - boardp->id); - break; - case ASC_WARN_CMD_QNG_CONFLICT: - ASC_PRINT1("AscInitSetConfig: board %d: tag queuing w/o " - "disconnects\n", - boardp->id); - break; - default: - ASC_PRINT2("AscInitSetConfig: board %d: unknown warning: " - "0x%x\n", boardp->id, warn_code); - break; - } - - if (asc_dvc->err_code != 0) { - ASC_PRINT3("AscInitSetConfig: board %d error: init_state 0x%x, " - "err_code 0x%x\n", boardp->id, asc_dvc->init_state, - asc_dvc->err_code); - } - - return asc_dvc->err_code; -} - -static ushort AscInitAsc1000Driver(ASC_DVC_VAR *asc_dvc) -{ - ushort warn_code; - PortAddr iop_base; - - iop_base = asc_dvc->iop_base; - warn_code = 0; - if ((asc_dvc->dvc_cntl & ASC_CNTL_RESET_SCSI) && - !(asc_dvc->init_state & ASC_INIT_RESET_SCSI_DONE)) { - AscResetChipAndScsiBus(asc_dvc); - mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ - } - asc_dvc->init_state |= ASC_INIT_STATE_BEG_LOAD_MC; - if (asc_dvc->err_code != 0) - return (UW_ERR); - if (!AscFindSignature(asc_dvc->iop_base)) { - asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; - return (warn_code); - } - AscDisableInterrupt(iop_base); - warn_code |= AscInitLram(asc_dvc); - if (asc_dvc->err_code != 0) - return (UW_ERR); - ASC_DBG1(1, "AscInitAsc1000Driver: _asc_mcode_chksum 0x%lx\n", - (ulong)_asc_mcode_chksum); - if (AscLoadMicroCode(iop_base, 0, _asc_mcode_buf, - _asc_mcode_size) != _asc_mcode_chksum) { - asc_dvc->err_code |= ASC_IERR_MCODE_CHKSUM; - return (warn_code); - } - warn_code |= AscInitMicroCodeVar(asc_dvc); - asc_dvc->init_state |= ASC_INIT_STATE_END_LOAD_MC; - AscEnableInterrupt(iop_base); - return (warn_code); -} - -static ushort __devinit AscInitAscDvcVar(ASC_DVC_VAR *asc_dvc) -{ - int i; - PortAddr iop_base; - ushort warn_code; - uchar chip_version; - - iop_base = asc_dvc->iop_base; - warn_code = 0; - asc_dvc->err_code = 0; - if ((asc_dvc->bus_type & - (ASC_IS_ISA | ASC_IS_PCI | ASC_IS_EISA | ASC_IS_VL)) == 0) { - asc_dvc->err_code |= ASC_IERR_NO_BUS_TYPE; - } - AscSetChipControl(iop_base, CC_HALT); - AscSetChipStatus(iop_base, 0); - asc_dvc->bug_fix_cntl = 0; - asc_dvc->pci_fix_asyn_xfer = 0; - asc_dvc->pci_fix_asyn_xfer_always = 0; - /* asc_dvc->init_state initalized in AscInitGetConfig(). */ - asc_dvc->sdtr_done = 0; - asc_dvc->cur_total_qng = 0; - asc_dvc->is_in_int = 0; - asc_dvc->in_critical_cnt = 0; - asc_dvc->last_q_shortage = 0; - asc_dvc->use_tagged_qng = 0; - asc_dvc->no_scam = 0; - asc_dvc->unit_not_ready = 0; - asc_dvc->queue_full_or_busy = 0; - asc_dvc->redo_scam = 0; - asc_dvc->res2 = 0; - asc_dvc->host_init_sdtr_index = 0; - asc_dvc->cfg->can_tagged_qng = 0; - asc_dvc->cfg->cmd_qng_enabled = 0; - asc_dvc->dvc_cntl = ASC_DEF_DVC_CNTL; - asc_dvc->init_sdtr = 0; - asc_dvc->max_total_qng = ASC_DEF_MAX_TOTAL_QNG; - asc_dvc->scsi_reset_wait = 3; - asc_dvc->start_motor = ASC_SCSI_WIDTH_BIT_SET; - asc_dvc->max_dma_count = AscGetMaxDmaCount(asc_dvc->bus_type); - asc_dvc->cfg->sdtr_enable = ASC_SCSI_WIDTH_BIT_SET; - asc_dvc->cfg->disc_enable = ASC_SCSI_WIDTH_BIT_SET; - asc_dvc->cfg->chip_scsi_id = ASC_DEF_CHIP_SCSI_ID; - asc_dvc->cfg->lib_serial_no = ASC_LIB_SERIAL_NUMBER; - asc_dvc->cfg->lib_version = (ASC_LIB_VERSION_MAJOR << 8) | - ASC_LIB_VERSION_MINOR; - chip_version = AscGetChipVersion(iop_base, asc_dvc->bus_type); - asc_dvc->cfg->chip_version = chip_version; - asc_dvc->sdtr_period_tbl[0] = SYN_XFER_NS_0; - asc_dvc->sdtr_period_tbl[1] = SYN_XFER_NS_1; - asc_dvc->sdtr_period_tbl[2] = SYN_XFER_NS_2; - asc_dvc->sdtr_period_tbl[3] = SYN_XFER_NS_3; - asc_dvc->sdtr_period_tbl[4] = SYN_XFER_NS_4; - asc_dvc->sdtr_period_tbl[5] = SYN_XFER_NS_5; - asc_dvc->sdtr_period_tbl[6] = SYN_XFER_NS_6; - asc_dvc->sdtr_period_tbl[7] = SYN_XFER_NS_7; - asc_dvc->max_sdtr_index = 7; - if ((asc_dvc->bus_type & ASC_IS_PCI) && - (chip_version >= ASC_CHIP_VER_PCI_ULTRA_3150)) { - asc_dvc->bus_type = ASC_IS_PCI_ULTRA; - asc_dvc->sdtr_period_tbl[0] = SYN_ULTRA_XFER_NS_0; - asc_dvc->sdtr_period_tbl[1] = SYN_ULTRA_XFER_NS_1; - asc_dvc->sdtr_period_tbl[2] = SYN_ULTRA_XFER_NS_2; - asc_dvc->sdtr_period_tbl[3] = SYN_ULTRA_XFER_NS_3; - asc_dvc->sdtr_period_tbl[4] = SYN_ULTRA_XFER_NS_4; - asc_dvc->sdtr_period_tbl[5] = SYN_ULTRA_XFER_NS_5; - asc_dvc->sdtr_period_tbl[6] = SYN_ULTRA_XFER_NS_6; - asc_dvc->sdtr_period_tbl[7] = SYN_ULTRA_XFER_NS_7; - asc_dvc->sdtr_period_tbl[8] = SYN_ULTRA_XFER_NS_8; - asc_dvc->sdtr_period_tbl[9] = SYN_ULTRA_XFER_NS_9; - asc_dvc->sdtr_period_tbl[10] = SYN_ULTRA_XFER_NS_10; - asc_dvc->sdtr_period_tbl[11] = SYN_ULTRA_XFER_NS_11; - asc_dvc->sdtr_period_tbl[12] = SYN_ULTRA_XFER_NS_12; - asc_dvc->sdtr_period_tbl[13] = SYN_ULTRA_XFER_NS_13; - asc_dvc->sdtr_period_tbl[14] = SYN_ULTRA_XFER_NS_14; - asc_dvc->sdtr_period_tbl[15] = SYN_ULTRA_XFER_NS_15; - asc_dvc->max_sdtr_index = 15; - if (chip_version == ASC_CHIP_VER_PCI_ULTRA_3150) { - AscSetExtraControl(iop_base, - (SEC_ACTIVE_NEGATE | SEC_SLEW_RATE)); - } else if (chip_version >= ASC_CHIP_VER_PCI_ULTRA_3050) { - AscSetExtraControl(iop_base, - (SEC_ACTIVE_NEGATE | - SEC_ENABLE_FILTER)); - } - } - if (asc_dvc->bus_type == ASC_IS_PCI) { - AscSetExtraControl(iop_base, - (SEC_ACTIVE_NEGATE | SEC_SLEW_RATE)); - } - - asc_dvc->cfg->isa_dma_speed = ASC_DEF_ISA_DMA_SPEED; -#ifdef CONFIG_ISA - if ((asc_dvc->bus_type & ASC_IS_ISA) != 0) { - if (chip_version >= ASC_CHIP_MIN_VER_ISA_PNP) { - AscSetChipIFC(iop_base, IFC_INIT_DEFAULT); - asc_dvc->bus_type = ASC_IS_ISAPNP; - } - asc_dvc->cfg->isa_dma_channel = - (uchar)AscGetIsaDmaChannel(iop_base); - } -#endif /* CONFIG_ISA */ - for (i = 0; i <= ASC_MAX_TID; i++) { - asc_dvc->cur_dvc_qng[i] = 0; - asc_dvc->max_dvc_qng[i] = ASC_MAX_SCSI1_QNG; - asc_dvc->scsiq_busy_head[i] = (ASC_SCSI_Q *)0L; - asc_dvc->scsiq_busy_tail[i] = (ASC_SCSI_Q *)0L; - asc_dvc->cfg->max_tag_qng[i] = ASC_MAX_INRAM_TAG_QNG; - } - return (warn_code); -} - -static ushort __devinit AscInitFromEEP(ASC_DVC_VAR *asc_dvc) -{ - ASCEEP_CONFIG eep_config_buf; - ASCEEP_CONFIG *eep_config; - PortAddr iop_base; - ushort chksum; - ushort warn_code; - ushort cfg_msw, cfg_lsw; - int i; - int write_eep = 0; - - iop_base = asc_dvc->iop_base; - warn_code = 0; - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0x00FE); - AscStopQueueExe(iop_base); - if ((AscStopChip(iop_base) == FALSE) || - (AscGetChipScsiCtrl(iop_base) != 0)) { - asc_dvc->init_state |= ASC_INIT_RESET_SCSI_DONE; - AscResetChipAndScsiBus(asc_dvc); - mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ - } - if (AscIsChipHalted(iop_base) == FALSE) { - asc_dvc->err_code |= ASC_IERR_START_STOP_CHIP; - return (warn_code); - } - AscSetPCAddr(iop_base, ASC_MCODE_START_ADDR); - if (AscGetPCAddr(iop_base) != ASC_MCODE_START_ADDR) { - asc_dvc->err_code |= ASC_IERR_SET_PC_ADDR; - return (warn_code); - } - eep_config = (ASCEEP_CONFIG *)&eep_config_buf; - cfg_msw = AscGetChipCfgMsw(iop_base); - cfg_lsw = AscGetChipCfgLsw(iop_base); - if ((cfg_msw & ASC_CFG_MSW_CLR_MASK) != 0) { - cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; - warn_code |= ASC_WARN_CFG_MSW_RECOVER; - AscSetChipCfgMsw(iop_base, cfg_msw); - } - chksum = AscGetEEPConfig(iop_base, eep_config, asc_dvc->bus_type); - ASC_DBG1(1, "AscInitFromEEP: chksum 0x%x\n", chksum); - if (chksum == 0) { - chksum = 0xaa55; - } - if (AscGetChipStatus(iop_base) & CSW_AUTO_CONFIG) { - warn_code |= ASC_WARN_AUTO_CONFIG; - if (asc_dvc->cfg->chip_version == 3) { - if (eep_config->cfg_lsw != cfg_lsw) { - warn_code |= ASC_WARN_EEPROM_RECOVER; - eep_config->cfg_lsw = - AscGetChipCfgLsw(iop_base); - } - if (eep_config->cfg_msw != cfg_msw) { - warn_code |= ASC_WARN_EEPROM_RECOVER; - eep_config->cfg_msw = - AscGetChipCfgMsw(iop_base); - } - } - } - eep_config->cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; - eep_config->cfg_lsw |= ASC_CFG0_HOST_INT_ON; - ASC_DBG1(1, "AscInitFromEEP: eep_config->chksum 0x%x\n", - eep_config->chksum); - if (chksum != eep_config->chksum) { - if (AscGetChipVersion(iop_base, asc_dvc->bus_type) == - ASC_CHIP_VER_PCI_ULTRA_3050) { - ASC_DBG(1, - "AscInitFromEEP: chksum error ignored; EEPROM-less board\n"); - eep_config->init_sdtr = 0xFF; - eep_config->disc_enable = 0xFF; - eep_config->start_motor = 0xFF; - eep_config->use_cmd_qng = 0; - eep_config->max_total_qng = 0xF0; - eep_config->max_tag_qng = 0x20; - eep_config->cntl = 0xBFFF; - ASC_EEP_SET_CHIP_ID(eep_config, 7); - eep_config->no_scam = 0; - eep_config->adapter_info[0] = 0; - eep_config->adapter_info[1] = 0; - eep_config->adapter_info[2] = 0; - eep_config->adapter_info[3] = 0; - eep_config->adapter_info[4] = 0; - /* Indicate EEPROM-less board. */ - eep_config->adapter_info[5] = 0xBB; - } else { - ASC_PRINT - ("AscInitFromEEP: EEPROM checksum error; Will try to re-write EEPROM.\n"); - write_eep = 1; - warn_code |= ASC_WARN_EEPROM_CHKSUM; - } - } - asc_dvc->cfg->sdtr_enable = eep_config->init_sdtr; - asc_dvc->cfg->disc_enable = eep_config->disc_enable; - asc_dvc->cfg->cmd_qng_enabled = eep_config->use_cmd_qng; - asc_dvc->cfg->isa_dma_speed = ASC_EEP_GET_DMA_SPD(eep_config); - asc_dvc->start_motor = eep_config->start_motor; - asc_dvc->dvc_cntl = eep_config->cntl; - asc_dvc->no_scam = eep_config->no_scam; - asc_dvc->cfg->adapter_info[0] = eep_config->adapter_info[0]; - asc_dvc->cfg->adapter_info[1] = eep_config->adapter_info[1]; - asc_dvc->cfg->adapter_info[2] = eep_config->adapter_info[2]; - asc_dvc->cfg->adapter_info[3] = eep_config->adapter_info[3]; - asc_dvc->cfg->adapter_info[4] = eep_config->adapter_info[4]; - asc_dvc->cfg->adapter_info[5] = eep_config->adapter_info[5]; - if (!AscTestExternalLram(asc_dvc)) { - if (((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == - ASC_IS_PCI_ULTRA)) { - eep_config->max_total_qng = - ASC_MAX_PCI_ULTRA_INRAM_TOTAL_QNG; - eep_config->max_tag_qng = - ASC_MAX_PCI_ULTRA_INRAM_TAG_QNG; - } else { - eep_config->cfg_msw |= 0x0800; - cfg_msw |= 0x0800; - AscSetChipCfgMsw(iop_base, cfg_msw); - eep_config->max_total_qng = ASC_MAX_PCI_INRAM_TOTAL_QNG; - eep_config->max_tag_qng = ASC_MAX_INRAM_TAG_QNG; - } - } else { - } - if (eep_config->max_total_qng < ASC_MIN_TOTAL_QNG) { - eep_config->max_total_qng = ASC_MIN_TOTAL_QNG; - } - if (eep_config->max_total_qng > ASC_MAX_TOTAL_QNG) { - eep_config->max_total_qng = ASC_MAX_TOTAL_QNG; - } - if (eep_config->max_tag_qng > eep_config->max_total_qng) { - eep_config->max_tag_qng = eep_config->max_total_qng; - } - if (eep_config->max_tag_qng < ASC_MIN_TAG_Q_PER_DVC) { - eep_config->max_tag_qng = ASC_MIN_TAG_Q_PER_DVC; - } - asc_dvc->max_total_qng = eep_config->max_total_qng; - if ((eep_config->use_cmd_qng & eep_config->disc_enable) != - eep_config->use_cmd_qng) { - eep_config->disc_enable = eep_config->use_cmd_qng; - warn_code |= ASC_WARN_CMD_QNG_CONFLICT; - } - if (asc_dvc->bus_type & (ASC_IS_ISA | ASC_IS_VL | ASC_IS_EISA)) { - asc_dvc->irq_no = AscGetChipIRQ(iop_base, asc_dvc->bus_type); - } - ASC_EEP_SET_CHIP_ID(eep_config, - ASC_EEP_GET_CHIP_ID(eep_config) & ASC_MAX_TID); - asc_dvc->cfg->chip_scsi_id = ASC_EEP_GET_CHIP_ID(eep_config); - if (((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == ASC_IS_PCI_ULTRA) && - !(asc_dvc->dvc_cntl & ASC_CNTL_SDTR_ENABLE_ULTRA)) { - asc_dvc->host_init_sdtr_index = ASC_SDTR_ULTRA_PCI_10MB_INDEX; - } - - for (i = 0; i <= ASC_MAX_TID; i++) { - asc_dvc->dos_int13_table[i] = eep_config->dos_int13_table[i]; - asc_dvc->cfg->max_tag_qng[i] = eep_config->max_tag_qng; - asc_dvc->cfg->sdtr_period_offset[i] = - (uchar)(ASC_DEF_SDTR_OFFSET | - (asc_dvc->host_init_sdtr_index << 4)); - } - eep_config->cfg_msw = AscGetChipCfgMsw(iop_base); - if (write_eep) { - if ((i = - AscSetEEPConfig(iop_base, eep_config, - asc_dvc->bus_type)) != 0) { - ASC_PRINT1 - ("AscInitFromEEP: Failed to re-write EEPROM with %d errors.\n", - i); - } else { - ASC_PRINT - ("AscInitFromEEP: Successfully re-wrote EEPROM.\n"); - } - } - return (warn_code); -} - -static ushort AscInitMicroCodeVar(ASC_DVC_VAR *asc_dvc) -{ - int i; - ushort warn_code; - PortAddr iop_base; - ASC_PADDR phy_addr; - ASC_DCNT phy_size; - - iop_base = asc_dvc->iop_base; - warn_code = 0; - for (i = 0; i <= ASC_MAX_TID; i++) { - AscPutMCodeInitSDTRAtID(iop_base, i, - asc_dvc->cfg->sdtr_period_offset[i] - ); - } - - AscInitQLinkVar(asc_dvc); - AscWriteLramByte(iop_base, ASCV_DISC_ENABLE_B, - asc_dvc->cfg->disc_enable); - AscWriteLramByte(iop_base, ASCV_HOSTSCSI_ID_B, - ASC_TID_TO_TARGET_ID(asc_dvc->cfg->chip_scsi_id)); - - /* Align overrun buffer on an 8 byte boundary. */ - phy_addr = virt_to_bus(asc_dvc->cfg->overrun_buf); - phy_addr = cpu_to_le32((phy_addr + 7) & ~0x7); - AscMemDWordCopyPtrToLram(iop_base, ASCV_OVERRUN_PADDR_D, - (uchar *)&phy_addr, 1); - phy_size = cpu_to_le32(ASC_OVERRUN_BSIZE - 8); - AscMemDWordCopyPtrToLram(iop_base, ASCV_OVERRUN_BSIZE_D, - (uchar *)&phy_size, 1); - - asc_dvc->cfg->mcode_date = - AscReadLramWord(iop_base, (ushort)ASCV_MC_DATE_W); - asc_dvc->cfg->mcode_version = - AscReadLramWord(iop_base, (ushort)ASCV_MC_VER_W); - - AscSetPCAddr(iop_base, ASC_MCODE_START_ADDR); - if (AscGetPCAddr(iop_base) != ASC_MCODE_START_ADDR) { - asc_dvc->err_code |= ASC_IERR_SET_PC_ADDR; - return (warn_code); - } - if (AscStartChip(iop_base) != 1) { - asc_dvc->err_code |= ASC_IERR_START_STOP_CHIP; - return (warn_code); - } - - return (warn_code); -} - -static int __devinit AscTestExternalLram(ASC_DVC_VAR *asc_dvc) -{ - PortAddr iop_base; - ushort q_addr; - ushort saved_word; - int sta; - - iop_base = asc_dvc->iop_base; - sta = 0; - q_addr = ASC_QNO_TO_QADDR(241); - saved_word = AscReadLramWord(iop_base, q_addr); - AscSetChipLramAddr(iop_base, q_addr); - AscSetChipLramData(iop_base, 0x55AA); - mdelay(10); - AscSetChipLramAddr(iop_base, q_addr); - if (AscGetChipLramData(iop_base) == 0x55AA) { - sta = 1; - AscWriteLramWord(iop_base, q_addr, saved_word); - } - return (sta); -} - -static int __devinit AscWriteEEPCmdReg(PortAddr iop_base, uchar cmd_reg) -{ - uchar read_back; - int retry; - - retry = 0; - while (TRUE) { - AscSetChipEEPCmd(iop_base, cmd_reg); - mdelay(1); - read_back = AscGetChipEEPCmd(iop_base); - if (read_back == cmd_reg) { - return (1); - } - if (retry++ > ASC_EEP_MAX_RETRY) { - return (0); - } - } -} - -static int __devinit AscWriteEEPDataReg(PortAddr iop_base, ushort data_reg) -{ - ushort read_back; - int retry; - - retry = 0; - while (TRUE) { - AscSetChipEEPData(iop_base, data_reg); - mdelay(1); - read_back = AscGetChipEEPData(iop_base); - if (read_back == data_reg) { - return (1); - } - if (retry++ > ASC_EEP_MAX_RETRY) { - return (0); - } - } -} - -static void __devinit AscWaitEEPRead(void) -{ - mdelay(1); - return; -} - -static void __devinit AscWaitEEPWrite(void) -{ - mdelay(20); - return; -} - -static ushort __devinit AscReadEEPWord(PortAddr iop_base, uchar addr) -{ - ushort read_wval; - uchar cmd_reg; - - AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_DISABLE); - AscWaitEEPRead(); - cmd_reg = addr | ASC_EEP_CMD_READ; - AscWriteEEPCmdReg(iop_base, cmd_reg); - AscWaitEEPRead(); - read_wval = AscGetChipEEPData(iop_base); - AscWaitEEPRead(); - return (read_wval); -} - -static ushort __devinit -AscWriteEEPWord(PortAddr iop_base, uchar addr, ushort word_val) -{ - ushort read_wval; - - read_wval = AscReadEEPWord(iop_base, addr); - if (read_wval != word_val) { - AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_ABLE); - AscWaitEEPRead(); - AscWriteEEPDataReg(iop_base, word_val); - AscWaitEEPRead(); - AscWriteEEPCmdReg(iop_base, - (uchar)((uchar)ASC_EEP_CMD_WRITE | addr)); - AscWaitEEPWrite(); - AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_DISABLE); - AscWaitEEPRead(); - return (AscReadEEPWord(iop_base, addr)); - } - return (read_wval); -} - -static ushort __devinit -AscGetEEPConfig(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, ushort bus_type) -{ - ushort wval; - ushort sum; - ushort *wbuf; - int cfg_beg; - int cfg_end; - int uchar_end_in_config = ASC_EEP_MAX_DVC_ADDR - 2; - int s_addr; - - wbuf = (ushort *)cfg_buf; - sum = 0; - /* Read two config words; Byte-swapping done by AscReadEEPWord(). */ - for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) { - *wbuf = AscReadEEPWord(iop_base, (uchar)s_addr); - sum += *wbuf; - } - if (bus_type & ASC_IS_VL) { - cfg_beg = ASC_EEP_DVC_CFG_BEG_VL; - cfg_end = ASC_EEP_MAX_DVC_ADDR_VL; - } else { - cfg_beg = ASC_EEP_DVC_CFG_BEG; - cfg_end = ASC_EEP_MAX_DVC_ADDR; - } - for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) { - wval = AscReadEEPWord(iop_base, (uchar)s_addr); - if (s_addr <= uchar_end_in_config) { - /* - * Swap all char fields - must unswap bytes already swapped - * by AscReadEEPWord(). - */ - *wbuf = le16_to_cpu(wval); - } else { - /* Don't swap word field at the end - cntl field. */ - *wbuf = wval; - } - sum += wval; /* Checksum treats all EEPROM data as words. */ - } - /* - * Read the checksum word which will be compared against 'sum' - * by the caller. Word field already swapped. - */ - *wbuf = AscReadEEPWord(iop_base, (uchar)s_addr); - return (sum); -} - -static int __devinit -AscSetEEPConfigOnce(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, ushort bus_type) -{ - int n_error; - ushort *wbuf; - ushort word; - ushort sum; - int s_addr; - int cfg_beg; - int cfg_end; - int uchar_end_in_config = ASC_EEP_MAX_DVC_ADDR - 2; - - wbuf = (ushort *)cfg_buf; - n_error = 0; - sum = 0; - /* Write two config words; AscWriteEEPWord() will swap bytes. */ - for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) { - sum += *wbuf; - if (*wbuf != AscWriteEEPWord(iop_base, (uchar)s_addr, *wbuf)) { - n_error++; - } - } - if (bus_type & ASC_IS_VL) { - cfg_beg = ASC_EEP_DVC_CFG_BEG_VL; - cfg_end = ASC_EEP_MAX_DVC_ADDR_VL; - } else { - cfg_beg = ASC_EEP_DVC_CFG_BEG; - cfg_end = ASC_EEP_MAX_DVC_ADDR; - } - for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) { - if (s_addr <= uchar_end_in_config) { - /* - * This is a char field. Swap char fields before they are - * swapped again by AscWriteEEPWord(). - */ - word = cpu_to_le16(*wbuf); - if (word != - AscWriteEEPWord(iop_base, (uchar)s_addr, word)) { - n_error++; - } - } else { - /* Don't swap word field at the end - cntl field. */ - if (*wbuf != - AscWriteEEPWord(iop_base, (uchar)s_addr, *wbuf)) { - n_error++; - } - } - sum += *wbuf; /* Checksum calculated from word values. */ - } - /* Write checksum word. It will be swapped by AscWriteEEPWord(). */ - *wbuf = sum; - if (sum != AscWriteEEPWord(iop_base, (uchar)s_addr, sum)) { - n_error++; - } - - /* Read EEPROM back again. */ - wbuf = (ushort *)cfg_buf; - /* - * Read two config words; Byte-swapping done by AscReadEEPWord(). - */ - for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) { - if (*wbuf != AscReadEEPWord(iop_base, (uchar)s_addr)) { - n_error++; - } - } - if (bus_type & ASC_IS_VL) { - cfg_beg = ASC_EEP_DVC_CFG_BEG_VL; - cfg_end = ASC_EEP_MAX_DVC_ADDR_VL; - } else { - cfg_beg = ASC_EEP_DVC_CFG_BEG; - cfg_end = ASC_EEP_MAX_DVC_ADDR; - } - for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) { - if (s_addr <= uchar_end_in_config) { - /* - * Swap all char fields. Must unswap bytes already swapped - * by AscReadEEPWord(). - */ - word = - le16_to_cpu(AscReadEEPWord - (iop_base, (uchar)s_addr)); - } else { - /* Don't swap word field at the end - cntl field. */ - word = AscReadEEPWord(iop_base, (uchar)s_addr); - } - if (*wbuf != word) { - n_error++; - } - } - /* Read checksum; Byte swapping not needed. */ - if (AscReadEEPWord(iop_base, (uchar)s_addr) != sum) { - n_error++; - } - return (n_error); -} - -static int __devinit -AscSetEEPConfig(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, ushort bus_type) -{ - int retry; - int n_error; - - retry = 0; - while (TRUE) { - if ((n_error = AscSetEEPConfigOnce(iop_base, cfg_buf, - bus_type)) == 0) { - break; - } - if (++retry > ASC_EEP_MAX_RETRY) { - break; - } - } - return (n_error); -} - -static void AscAsyncFix(ASC_DVC_VAR *asc_dvc, struct scsi_device *sdev) -{ - char type = sdev->type; - ASC_SCSI_BIT_ID_TYPE tid_bits = 1 << sdev->id; - - if (!(asc_dvc->bug_fix_cntl & ASC_BUG_FIX_ASYN_USE_SYN)) - return; - if (asc_dvc->init_sdtr & tid_bits) - return; - - if ((type == TYPE_ROM) && (strncmp(sdev->vendor, "HP ", 3) == 0)) - asc_dvc->pci_fix_asyn_xfer_always |= tid_bits; - - asc_dvc->pci_fix_asyn_xfer |= tid_bits; - if ((type == TYPE_PROCESSOR) || (type == TYPE_SCANNER) || - (type == TYPE_ROM) || (type == TYPE_TAPE)) - asc_dvc->pci_fix_asyn_xfer &= ~tid_bits; - - if (asc_dvc->pci_fix_asyn_xfer & tid_bits) - AscSetRunChipSynRegAtID(asc_dvc->iop_base, sdev->id, - ASYN_SDTR_DATA_FIX_PCI_REV_AB); -} - -static uchar AscReadLramByte(PortAddr iop_base, ushort addr) -{ - uchar byte_data; - ushort word_data; - - if (isodd_word(addr)) { - AscSetChipLramAddr(iop_base, addr - 1); - word_data = AscGetChipLramData(iop_base); - byte_data = (uchar)((word_data >> 8) & 0xFF); - } else { - AscSetChipLramAddr(iop_base, addr); - word_data = AscGetChipLramData(iop_base); - byte_data = (uchar)(word_data & 0xFF); - } - return (byte_data); -} - -static ushort AscReadLramWord(PortAddr iop_base, ushort addr) -{ - ushort word_data; - - AscSetChipLramAddr(iop_base, addr); - word_data = AscGetChipLramData(iop_base); - return (word_data); -} - -#if CC_VERY_LONG_SG_LIST -static ASC_DCNT AscReadLramDWord(PortAddr iop_base, ushort addr) -{ - ushort val_low, val_high; - ASC_DCNT dword_data; - - AscSetChipLramAddr(iop_base, addr); - val_low = AscGetChipLramData(iop_base); - val_high = AscGetChipLramData(iop_base); - dword_data = ((ASC_DCNT) val_high << 16) | (ASC_DCNT) val_low; - return (dword_data); -} -#endif /* CC_VERY_LONG_SG_LIST */ - -static void AscWriteLramWord(PortAddr iop_base, ushort addr, ushort word_val) -{ - AscSetChipLramAddr(iop_base, addr); - AscSetChipLramData(iop_base, word_val); - return; -} - -static void AscWriteLramByte(PortAddr iop_base, ushort addr, uchar byte_val) -{ - ushort word_data; - - if (isodd_word(addr)) { - addr--; - word_data = AscReadLramWord(iop_base, addr); - word_data &= 0x00FF; - word_data |= (((ushort)byte_val << 8) & 0xFF00); - } else { - word_data = AscReadLramWord(iop_base, addr); - word_data &= 0xFF00; - word_data |= ((ushort)byte_val & 0x00FF); - } - AscWriteLramWord(iop_base, addr, word_data); - return; -} - -/* - * Copy 2 bytes to LRAM. - * - * The source data is assumed to be in little-endian order in memory - * and is maintained in little-endian order when written to LRAM. - */ -static void -AscMemWordCopyPtrToLram(PortAddr iop_base, - ushort s_addr, uchar *s_buffer, int words) -{ - int i; - - AscSetChipLramAddr(iop_base, s_addr); - for (i = 0; i < 2 * words; i += 2) { - /* - * On a little-endian system the second argument below - * produces a little-endian ushort which is written to - * LRAM in little-endian order. On a big-endian system - * the second argument produces a big-endian ushort which - * is "transparently" byte-swapped by outpw() and written - * in little-endian order to LRAM. - */ - outpw(iop_base + IOP_RAM_DATA, - ((ushort)s_buffer[i + 1] << 8) | s_buffer[i]); - } - return; -} - -/* - * Copy 4 bytes to LRAM. - * - * The source data is assumed to be in little-endian order in memory - * and is maintained in little-endian order when writen to LRAM. - */ -static void -AscMemDWordCopyPtrToLram(PortAddr iop_base, - ushort s_addr, uchar *s_buffer, int dwords) -{ - int i; - - AscSetChipLramAddr(iop_base, s_addr); - for (i = 0; i < 4 * dwords; i += 4) { - outpw(iop_base + IOP_RAM_DATA, ((ushort)s_buffer[i + 1] << 8) | s_buffer[i]); /* LSW */ - outpw(iop_base + IOP_RAM_DATA, ((ushort)s_buffer[i + 3] << 8) | s_buffer[i + 2]); /* MSW */ - } - return; -} - -/* - * Copy 2 bytes from LRAM. - * - * The source data is assumed to be in little-endian order in LRAM - * and is maintained in little-endian order when written to memory. - */ -static void -AscMemWordCopyPtrFromLram(PortAddr iop_base, - ushort s_addr, uchar *d_buffer, int words) -{ - int i; - ushort word; - - AscSetChipLramAddr(iop_base, s_addr); - for (i = 0; i < 2 * words; i += 2) { - word = inpw(iop_base + IOP_RAM_DATA); - d_buffer[i] = word & 0xff; - d_buffer[i + 1] = (word >> 8) & 0xff; - } - return; -} - -static ASC_DCNT AscMemSumLramWord(PortAddr iop_base, ushort s_addr, int words) -{ - ASC_DCNT sum; - int i; - - sum = 0L; - for (i = 0; i < words; i++, s_addr += 2) { - sum += AscReadLramWord(iop_base, s_addr); - } - return (sum); -} - -static void -AscMemWordSetLram(PortAddr iop_base, ushort s_addr, ushort set_wval, int words) -{ - int i; - - AscSetChipLramAddr(iop_base, s_addr); - for (i = 0; i < words; i++) { - AscSetChipLramData(iop_base, set_wval); - } - return; -} - /* Microcode buffer is kept after initialization for error recovery. */ static unsigned char _adv_asc3550_buf[] = { 0x00, 0x00, 0x00, 0xf2, 0x00, 0xf0, 0x00, 0x16, 0x18, 0xe4, 0x00, 0xfc, @@ -10686,451 +6494,213 @@ static unsigned char _adv_asc38C1600_buf[] = { static unsigned short _adv_asc38C1600_size = sizeof(_adv_asc38C1600_buf); /* 0x1673 */ static ADV_DCNT _adv_asc38C1600_chksum = 0x0604EF77UL; /* Expanded little-endian checksum. */ -/* - * EEPROM Configuration. - * - * All drivers should use this structure to set the default EEPROM - * configuration. The BIOS now uses this structure when it is built. - * Additional structure information can be found in a_condor.h where - * the structure is defined. - * - * The *_Field_IsChar structs are needed to correct for endianness. - * These values are read from the board 16 bits at a time directly - * into the structs. Because some fields are char, the values will be - * in the wrong order. The *_Field_IsChar tells when to flip the - * bytes. Data read and written to PCI memory is automatically swapped - * on big-endian platforms so char fields read as words are actually being - * unswapped on big-endian platforms. - */ -static ADVEEP_3550_CONFIG Default_3550_EEPROM_Config __devinitdata = { - ADV_EEPROM_BIOS_ENABLE, /* cfg_lsw */ - 0x0000, /* cfg_msw */ - 0xFFFF, /* disc_enable */ - 0xFFFF, /* wdtr_able */ - 0xFFFF, /* sdtr_able */ - 0xFFFF, /* start_motor */ - 0xFFFF, /* tagqng_able */ - 0xFFFF, /* bios_scan */ - 0, /* scam_tolerant */ - 7, /* adapter_scsi_id */ - 0, /* bios_boot_delay */ - 3, /* scsi_reset_delay */ - 0, /* bios_id_lun */ - 0, /* termination */ - 0, /* reserved1 */ - 0xFFE7, /* bios_ctrl */ - 0xFFFF, /* ultra_able */ - 0, /* reserved2 */ - ASC_DEF_MAX_HOST_QNG, /* max_host_qng */ - ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */ - 0, /* dvc_cntl */ - 0, /* bug_fix */ - 0, /* serial_number_word1 */ - 0, /* serial_number_word2 */ - 0, /* serial_number_word3 */ - 0, /* check_sum */ - {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} - , /* oem_name[16] */ - 0, /* dvc_err_code */ - 0, /* adv_err_code */ - 0, /* adv_err_addr */ - 0, /* saved_dvc_err_code */ - 0, /* saved_adv_err_code */ - 0, /* saved_adv_err_addr */ - 0 /* num_of_err */ -}; +static void AscInitQLinkVar(ASC_DVC_VAR *asc_dvc) +{ + PortAddr iop_base; + int i; + ushort lram_addr; -static ADVEEP_3550_CONFIG ADVEEP_3550_Config_Field_IsChar __devinitdata = { - 0, /* cfg_lsw */ - 0, /* cfg_msw */ - 0, /* -disc_enable */ - 0, /* wdtr_able */ - 0, /* sdtr_able */ - 0, /* start_motor */ - 0, /* tagqng_able */ - 0, /* bios_scan */ - 0, /* scam_tolerant */ - 1, /* adapter_scsi_id */ - 1, /* bios_boot_delay */ - 1, /* scsi_reset_delay */ - 1, /* bios_id_lun */ - 1, /* termination */ - 1, /* reserved1 */ - 0, /* bios_ctrl */ - 0, /* ultra_able */ - 0, /* reserved2 */ - 1, /* max_host_qng */ - 1, /* max_dvc_qng */ - 0, /* dvc_cntl */ - 0, /* bug_fix */ - 0, /* serial_number_word1 */ - 0, /* serial_number_word2 */ - 0, /* serial_number_word3 */ - 0, /* check_sum */ - {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} - , /* oem_name[16] */ - 0, /* dvc_err_code */ - 0, /* adv_err_code */ - 0, /* adv_err_addr */ - 0, /* saved_dvc_err_code */ - 0, /* saved_adv_err_code */ - 0, /* saved_adv_err_addr */ - 0 /* num_of_err */ -}; + iop_base = asc_dvc->iop_base; + AscPutRiscVarFreeQHead(iop_base, 1); + AscPutRiscVarDoneQTail(iop_base, asc_dvc->max_total_qng); + AscPutVarFreeQHead(iop_base, 1); + AscPutVarDoneQTail(iop_base, asc_dvc->max_total_qng); + AscWriteLramByte(iop_base, ASCV_BUSY_QHEAD_B, + (uchar)((int)asc_dvc->max_total_qng + 1)); + AscWriteLramByte(iop_base, ASCV_DISC1_QHEAD_B, + (uchar)((int)asc_dvc->max_total_qng + 2)); + AscWriteLramByte(iop_base, (ushort)ASCV_TOTAL_READY_Q_B, + asc_dvc->max_total_qng); + AscWriteLramWord(iop_base, ASCV_ASCDVC_ERR_CODE_W, 0); + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, 0); + AscWriteLramByte(iop_base, ASCV_SCSIBUSY_B, 0); + AscWriteLramByte(iop_base, ASCV_WTM_FLAG_B, 0); + AscPutQDoneInProgress(iop_base, 0); + lram_addr = ASC_QADR_BEG; + for (i = 0; i < 32; i++, lram_addr += 2) { + AscWriteLramWord(iop_base, lram_addr, 0); + } +} -static ADVEEP_38C0800_CONFIG Default_38C0800_EEPROM_Config __devinitdata = { - ADV_EEPROM_BIOS_ENABLE, /* 00 cfg_lsw */ - 0x0000, /* 01 cfg_msw */ - 0xFFFF, /* 02 disc_enable */ - 0xFFFF, /* 03 wdtr_able */ - 0x4444, /* 04 sdtr_speed1 */ - 0xFFFF, /* 05 start_motor */ - 0xFFFF, /* 06 tagqng_able */ - 0xFFFF, /* 07 bios_scan */ - 0, /* 08 scam_tolerant */ - 7, /* 09 adapter_scsi_id */ - 0, /* bios_boot_delay */ - 3, /* 10 scsi_reset_delay */ - 0, /* bios_id_lun */ - 0, /* 11 termination_se */ - 0, /* termination_lvd */ - 0xFFE7, /* 12 bios_ctrl */ - 0x4444, /* 13 sdtr_speed2 */ - 0x4444, /* 14 sdtr_speed3 */ - ASC_DEF_MAX_HOST_QNG, /* 15 max_host_qng */ - ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */ - 0, /* 16 dvc_cntl */ - 0x4444, /* 17 sdtr_speed4 */ - 0, /* 18 serial_number_word1 */ - 0, /* 19 serial_number_word2 */ - 0, /* 20 serial_number_word3 */ - 0, /* 21 check_sum */ - {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} - , /* 22-29 oem_name[16] */ - 0, /* 30 dvc_err_code */ - 0, /* 31 adv_err_code */ - 0, /* 32 adv_err_addr */ - 0, /* 33 saved_dvc_err_code */ - 0, /* 34 saved_adv_err_code */ - 0, /* 35 saved_adv_err_addr */ - 0, /* 36 reserved */ - 0, /* 37 reserved */ - 0, /* 38 reserved */ - 0, /* 39 reserved */ - 0, /* 40 reserved */ - 0, /* 41 reserved */ - 0, /* 42 reserved */ - 0, /* 43 reserved */ - 0, /* 44 reserved */ - 0, /* 45 reserved */ - 0, /* 46 reserved */ - 0, /* 47 reserved */ - 0, /* 48 reserved */ - 0, /* 49 reserved */ - 0, /* 50 reserved */ - 0, /* 51 reserved */ - 0, /* 52 reserved */ - 0, /* 53 reserved */ - 0, /* 54 reserved */ - 0, /* 55 reserved */ - 0, /* 56 cisptr_lsw */ - 0, /* 57 cisprt_msw */ - PCI_VENDOR_ID_ASP, /* 58 subsysvid */ - PCI_DEVICE_ID_38C0800_REV1, /* 59 subsysid */ - 0, /* 60 reserved */ - 0, /* 61 reserved */ - 0, /* 62 reserved */ - 0 /* 63 reserved */ -}; +static ushort AscInitMicroCodeVar(ASC_DVC_VAR *asc_dvc) +{ + int i; + ushort warn_code; + PortAddr iop_base; + ASC_PADDR phy_addr; + ASC_DCNT phy_size; -static ADVEEP_38C0800_CONFIG ADVEEP_38C0800_Config_Field_IsChar __devinitdata = { - 0, /* 00 cfg_lsw */ - 0, /* 01 cfg_msw */ - 0, /* 02 disc_enable */ - 0, /* 03 wdtr_able */ - 0, /* 04 sdtr_speed1 */ - 0, /* 05 start_motor */ - 0, /* 06 tagqng_able */ - 0, /* 07 bios_scan */ - 0, /* 08 scam_tolerant */ - 1, /* 09 adapter_scsi_id */ - 1, /* bios_boot_delay */ - 1, /* 10 scsi_reset_delay */ - 1, /* bios_id_lun */ - 1, /* 11 termination_se */ - 1, /* termination_lvd */ - 0, /* 12 bios_ctrl */ - 0, /* 13 sdtr_speed2 */ - 0, /* 14 sdtr_speed3 */ - 1, /* 15 max_host_qng */ - 1, /* max_dvc_qng */ - 0, /* 16 dvc_cntl */ - 0, /* 17 sdtr_speed4 */ - 0, /* 18 serial_number_word1 */ - 0, /* 19 serial_number_word2 */ - 0, /* 20 serial_number_word3 */ - 0, /* 21 check_sum */ - {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} - , /* 22-29 oem_name[16] */ - 0, /* 30 dvc_err_code */ - 0, /* 31 adv_err_code */ - 0, /* 32 adv_err_addr */ - 0, /* 33 saved_dvc_err_code */ - 0, /* 34 saved_adv_err_code */ - 0, /* 35 saved_adv_err_addr */ - 0, /* 36 reserved */ - 0, /* 37 reserved */ - 0, /* 38 reserved */ - 0, /* 39 reserved */ - 0, /* 40 reserved */ - 0, /* 41 reserved */ - 0, /* 42 reserved */ - 0, /* 43 reserved */ - 0, /* 44 reserved */ - 0, /* 45 reserved */ - 0, /* 46 reserved */ - 0, /* 47 reserved */ - 0, /* 48 reserved */ - 0, /* 49 reserved */ - 0, /* 50 reserved */ - 0, /* 51 reserved */ - 0, /* 52 reserved */ - 0, /* 53 reserved */ - 0, /* 54 reserved */ - 0, /* 55 reserved */ - 0, /* 56 cisptr_lsw */ - 0, /* 57 cisprt_msw */ - 0, /* 58 subsysvid */ - 0, /* 59 subsysid */ - 0, /* 60 reserved */ - 0, /* 61 reserved */ - 0, /* 62 reserved */ - 0 /* 63 reserved */ -}; + iop_base = asc_dvc->iop_base; + warn_code = 0; + for (i = 0; i <= ASC_MAX_TID; i++) { + AscPutMCodeInitSDTRAtID(iop_base, i, + asc_dvc->cfg->sdtr_period_offset[i]); + } -static ADVEEP_38C1600_CONFIG Default_38C1600_EEPROM_Config __devinitdata = { - ADV_EEPROM_BIOS_ENABLE, /* 00 cfg_lsw */ - 0x0000, /* 01 cfg_msw */ - 0xFFFF, /* 02 disc_enable */ - 0xFFFF, /* 03 wdtr_able */ - 0x5555, /* 04 sdtr_speed1 */ - 0xFFFF, /* 05 start_motor */ - 0xFFFF, /* 06 tagqng_able */ - 0xFFFF, /* 07 bios_scan */ - 0, /* 08 scam_tolerant */ - 7, /* 09 adapter_scsi_id */ - 0, /* bios_boot_delay */ - 3, /* 10 scsi_reset_delay */ - 0, /* bios_id_lun */ - 0, /* 11 termination_se */ - 0, /* termination_lvd */ - 0xFFE7, /* 12 bios_ctrl */ - 0x5555, /* 13 sdtr_speed2 */ - 0x5555, /* 14 sdtr_speed3 */ - ASC_DEF_MAX_HOST_QNG, /* 15 max_host_qng */ - ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */ - 0, /* 16 dvc_cntl */ - 0x5555, /* 17 sdtr_speed4 */ - 0, /* 18 serial_number_word1 */ - 0, /* 19 serial_number_word2 */ - 0, /* 20 serial_number_word3 */ - 0, /* 21 check_sum */ - {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} - , /* 22-29 oem_name[16] */ - 0, /* 30 dvc_err_code */ - 0, /* 31 adv_err_code */ - 0, /* 32 adv_err_addr */ - 0, /* 33 saved_dvc_err_code */ - 0, /* 34 saved_adv_err_code */ - 0, /* 35 saved_adv_err_addr */ - 0, /* 36 reserved */ - 0, /* 37 reserved */ - 0, /* 38 reserved */ - 0, /* 39 reserved */ - 0, /* 40 reserved */ - 0, /* 41 reserved */ - 0, /* 42 reserved */ - 0, /* 43 reserved */ - 0, /* 44 reserved */ - 0, /* 45 reserved */ - 0, /* 46 reserved */ - 0, /* 47 reserved */ - 0, /* 48 reserved */ - 0, /* 49 reserved */ - 0, /* 50 reserved */ - 0, /* 51 reserved */ - 0, /* 52 reserved */ - 0, /* 53 reserved */ - 0, /* 54 reserved */ - 0, /* 55 reserved */ - 0, /* 56 cisptr_lsw */ - 0, /* 57 cisprt_msw */ - PCI_VENDOR_ID_ASP, /* 58 subsysvid */ - PCI_DEVICE_ID_38C1600_REV1, /* 59 subsysid */ - 0, /* 60 reserved */ - 0, /* 61 reserved */ - 0, /* 62 reserved */ - 0 /* 63 reserved */ -}; + AscInitQLinkVar(asc_dvc); + AscWriteLramByte(iop_base, ASCV_DISC_ENABLE_B, + asc_dvc->cfg->disc_enable); + AscWriteLramByte(iop_base, ASCV_HOSTSCSI_ID_B, + ASC_TID_TO_TARGET_ID(asc_dvc->cfg->chip_scsi_id)); -static ADVEEP_38C1600_CONFIG ADVEEP_38C1600_Config_Field_IsChar __devinitdata = { - 0, /* 00 cfg_lsw */ - 0, /* 01 cfg_msw */ - 0, /* 02 disc_enable */ - 0, /* 03 wdtr_able */ - 0, /* 04 sdtr_speed1 */ - 0, /* 05 start_motor */ - 0, /* 06 tagqng_able */ - 0, /* 07 bios_scan */ - 0, /* 08 scam_tolerant */ - 1, /* 09 adapter_scsi_id */ - 1, /* bios_boot_delay */ - 1, /* 10 scsi_reset_delay */ - 1, /* bios_id_lun */ - 1, /* 11 termination_se */ - 1, /* termination_lvd */ - 0, /* 12 bios_ctrl */ - 0, /* 13 sdtr_speed2 */ - 0, /* 14 sdtr_speed3 */ - 1, /* 15 max_host_qng */ - 1, /* max_dvc_qng */ - 0, /* 16 dvc_cntl */ - 0, /* 17 sdtr_speed4 */ - 0, /* 18 serial_number_word1 */ - 0, /* 19 serial_number_word2 */ - 0, /* 20 serial_number_word3 */ - 0, /* 21 check_sum */ - {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} - , /* 22-29 oem_name[16] */ - 0, /* 30 dvc_err_code */ - 0, /* 31 adv_err_code */ - 0, /* 32 adv_err_addr */ - 0, /* 33 saved_dvc_err_code */ - 0, /* 34 saved_adv_err_code */ - 0, /* 35 saved_adv_err_addr */ - 0, /* 36 reserved */ - 0, /* 37 reserved */ - 0, /* 38 reserved */ - 0, /* 39 reserved */ - 0, /* 40 reserved */ - 0, /* 41 reserved */ - 0, /* 42 reserved */ - 0, /* 43 reserved */ - 0, /* 44 reserved */ - 0, /* 45 reserved */ - 0, /* 46 reserved */ - 0, /* 47 reserved */ - 0, /* 48 reserved */ - 0, /* 49 reserved */ - 0, /* 50 reserved */ - 0, /* 51 reserved */ - 0, /* 52 reserved */ - 0, /* 53 reserved */ - 0, /* 54 reserved */ - 0, /* 55 reserved */ - 0, /* 56 cisptr_lsw */ - 0, /* 57 cisprt_msw */ - 0, /* 58 subsysvid */ - 0, /* 59 subsysid */ - 0, /* 60 reserved */ - 0, /* 61 reserved */ - 0, /* 62 reserved */ - 0 /* 63 reserved */ -}; + /* Align overrun buffer on an 8 byte boundary. */ + phy_addr = virt_to_bus(asc_dvc->cfg->overrun_buf); + phy_addr = cpu_to_le32((phy_addr + 7) & ~0x7); + AscMemDWordCopyPtrToLram(iop_base, ASCV_OVERRUN_PADDR_D, + (uchar *)&phy_addr, 1); + phy_size = cpu_to_le32(ASC_OVERRUN_BSIZE - 8); + AscMemDWordCopyPtrToLram(iop_base, ASCV_OVERRUN_BSIZE_D, + (uchar *)&phy_size, 1); + + asc_dvc->cfg->mcode_date = + AscReadLramWord(iop_base, (ushort)ASCV_MC_DATE_W); + asc_dvc->cfg->mcode_version = + AscReadLramWord(iop_base, (ushort)ASCV_MC_VER_W); + + AscSetPCAddr(iop_base, ASC_MCODE_START_ADDR); + if (AscGetPCAddr(iop_base) != ASC_MCODE_START_ADDR) { + asc_dvc->err_code |= ASC_IERR_SET_PC_ADDR; + return warn_code; + } + if (AscStartChip(iop_base) != 1) { + asc_dvc->err_code |= ASC_IERR_START_STOP_CHIP; + return warn_code; + } + + return warn_code; +} + +static ushort AscInitAsc1000Driver(ASC_DVC_VAR *asc_dvc) +{ + ushort warn_code; + PortAddr iop_base; + + iop_base = asc_dvc->iop_base; + warn_code = 0; + if ((asc_dvc->dvc_cntl & ASC_CNTL_RESET_SCSI) && + !(asc_dvc->init_state & ASC_INIT_RESET_SCSI_DONE)) { + AscResetChipAndScsiBus(asc_dvc); + mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ + } + asc_dvc->init_state |= ASC_INIT_STATE_BEG_LOAD_MC; + if (asc_dvc->err_code != 0) + return UW_ERR; + if (!AscFindSignature(asc_dvc->iop_base)) { + asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; + return warn_code; + } + AscDisableInterrupt(iop_base); + warn_code |= AscInitLram(asc_dvc); + if (asc_dvc->err_code != 0) + return UW_ERR; + ASC_DBG1(1, "AscInitAsc1000Driver: _asc_mcode_chksum 0x%lx\n", + (ulong)_asc_mcode_chksum); + if (AscLoadMicroCode(iop_base, 0, _asc_mcode_buf, + _asc_mcode_size) != _asc_mcode_chksum) { + asc_dvc->err_code |= ASC_IERR_MCODE_CHKSUM; + return warn_code; + } + warn_code |= AscInitMicroCodeVar(asc_dvc); + asc_dvc->init_state |= ASC_INIT_STATE_END_LOAD_MC; + AscEnableInterrupt(iop_base); + return warn_code; +} -#ifdef CONFIG_PCI /* - * Initialize the ADV_DVC_VAR structure. + * Load the Microcode * - * On failure set the ADV_DVC_VAR field 'err_code' and return ADV_ERROR. + * Write the microcode image to RISC memory starting at address 0. * - * For a non-fatal error return a warning code. If there are no warnings - * then 0 is returned. + * The microcode is stored compressed in the following format: + * + * 254 word (508 byte) table indexed by byte code followed + * by the following byte codes: + * + * 1-Byte Code: + * 00: Emit word 0 in table. + * 01: Emit word 1 in table. + * . + * FD: Emit word 253 in table. + * + * Multi-Byte Code: + * FE WW WW: (3 byte code) Word to emit is the next word WW WW. + * FF BB WW WW: (4 byte code) Emit BB count times next word WW WW. + * + * Returns 0 or an error if the checksum doesn't match */ -static int __devinit -AdvInitGetConfig(struct pci_dev *pdev, asc_board_t *boardp) +static int AdvLoadMicrocode(AdvPortAddr iop_base, unsigned char *buf, int size, + int memsize, int chksum) { - ADV_DVC_VAR *asc_dvc = &boardp->dvc_var.adv_dvc_var; - unsigned short warn_code = 0; - AdvPortAddr iop_base = asc_dvc->iop_base; - u16 cmd; - int status; + int i, j, end, len = 0; + ADV_DCNT sum; - asc_dvc->err_code = 0; + AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0); - /* - * Save the state of the PCI Configuration Command Register - * "Parity Error Response Control" Bit. If the bit is clear (0), - * in AdvInitAsc3550/38C0800Driver() tell the microcode to ignore - * DMA parity errors. - */ - asc_dvc->cfg->control_flag = 0; - pci_read_config_word(pdev, PCI_COMMAND, &cmd); - if ((cmd & PCI_COMMAND_PARITY) == 0) - asc_dvc->cfg->control_flag |= CONTROL_FLAG_IGNORE_PERR; + for (i = 253 * 2; i < size; i++) { + if (buf[i] == 0xff) { + unsigned short word = (buf[i + 3] << 8) | buf[i + 2]; + for (j = 0; j < buf[i + 1]; j++) { + AdvWriteWordAutoIncLram(iop_base, word); + len += 2; + } + i += 3; + } else if (buf[i] == 0xfe) { + unsigned short word = (buf[i + 2] << 8) | buf[i + 1]; + AdvWriteWordAutoIncLram(iop_base, word); + i += 2; + len += 2; + } else { + unsigned char off = buf[i] * 2; + unsigned short word = (buf[off + 1] << 8) | buf[off]; + AdvWriteWordAutoIncLram(iop_base, word); + len += 2; + } + } - asc_dvc->cfg->lib_version = (ADV_LIB_VERSION_MAJOR << 8) | - ADV_LIB_VERSION_MINOR; - asc_dvc->cfg->chip_version = - AdvGetChipVersion(iop_base, asc_dvc->bus_type); + end = len; - ASC_DBG2(1, "AdvInitGetConfig: iopb_chip_id_1: 0x%x 0x%x\n", - (ushort)AdvReadByteRegister(iop_base, IOPB_CHIP_ID_1), - (ushort)ADV_CHIP_ID_BYTE); + while (len < memsize) { + AdvWriteWordAutoIncLram(iop_base, 0); + len += 2; + } - ASC_DBG2(1, "AdvInitGetConfig: iopw_chip_id_0: 0x%x 0x%x\n", - (ushort)AdvReadWordRegister(iop_base, IOPW_CHIP_ID_0), - (ushort)ADV_CHIP_ID_WORD); + /* Verify the microcode checksum. */ + sum = 0; + AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0); - /* - * Reset the chip to start and allow register writes. - */ - if (AdvFindSignature(iop_base) == 0) { - asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; - return ADV_ERROR; - } else { - /* - * The caller must set 'chip_type' to a valid setting. - */ - if (asc_dvc->chip_type != ADV_CHIP_ASC3550 && - asc_dvc->chip_type != ADV_CHIP_ASC38C0800 && - asc_dvc->chip_type != ADV_CHIP_ASC38C1600) { - asc_dvc->err_code |= ASC_IERR_BAD_CHIPTYPE; - return ADV_ERROR; - } + for (len = 0; len < end; len += 2) { + sum += AdvReadWordAutoIncLram(iop_base); + } - /* - * Reset Chip. - */ - AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, - ADV_CTRL_REG_CMD_RESET); - mdelay(100); - AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, - ADV_CTRL_REG_CMD_WR_IO_REG); + if (sum != chksum) + return ASC_IERR_MCODE_CHKSUM; - if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { - status = AdvInitFrom38C1600EEP(asc_dvc); - } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { - status = AdvInitFrom38C0800EEP(asc_dvc); - } else { - status = AdvInitFrom3550EEP(asc_dvc); - } - warn_code |= status; - } + return 0; +} - if (warn_code != 0) { - ASC_PRINT2("AdvInitGetConfig: board %d: warning: 0x%x\n", - boardp->id, warn_code); - } +/* + * DvcGetPhyAddr() + * + * Return the physical address of 'vaddr' and set '*lenp' to the + * number of physically contiguous bytes that follow 'vaddr'. + * 'flag' indicates the type of structure whose physical address + * is being translated. + * + * Note: Because Linux currently doesn't page the kernel and all + * kernel buffers are physically contiguous, leave '*lenp' unchanged. + */ +ADV_PADDR +DvcGetPhyAddr(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq, + uchar *vaddr, ADV_SDCNT *lenp, int flag) +{ + ADV_PADDR paddr = virt_to_bus(vaddr); - if (asc_dvc->err_code) { - ASC_PRINT2("AdvInitGetConfig: board %d error: err_code 0x%x\n", - boardp->id, asc_dvc->err_code); - } + ASC_DBG4(4, "DvcGetPhyAddr: vaddr 0x%p, lenp 0x%p *lenp %lu, paddr 0x%lx\n", + vaddr, lenp, (ulong)*((ulong *)lenp), (ulong)paddr); - return asc_dvc->err_code; + return paddr; } -#endif static void AdvBuildCarrierFreelist(struct adv_dvc_var *asc_dvc) { @@ -11183,75 +6753,117 @@ static void AdvBuildCarrierFreelist(struct adv_dvc_var *asc_dvc) } /* - * Load the Microcode - * - * Write the microcode image to RISC memory starting at address 0. - * - * The microcode is stored compressed in the following format: - * - * 254 word (508 byte) table indexed by byte code followed - * by the following byte codes: + * Send an idle command to the chip and wait for completion. * - * 1-Byte Code: - * 00: Emit word 0 in table. - * 01: Emit word 1 in table. - * . - * FD: Emit word 253 in table. + * Command completion is polled for once per microsecond. * - * Multi-Byte Code: - * FE WW WW: (3 byte code) Word to emit is the next word WW WW. - * FF BB WW WW: (4 byte code) Emit BB count times next word WW WW. + * The function can be called from anywhere including an interrupt handler. + * But the function is not re-entrant, so it uses the DvcEnter/LeaveCritical() + * functions to prevent reentrancy. * - * Returns 0 or an error if the checksum doesn't match + * Return Values: + * ADV_TRUE - command completed successfully + * ADV_FALSE - command failed + * ADV_ERROR - command timed out */ -static int AdvLoadMicrocode(AdvPortAddr iop_base, unsigned char *buf, int size, - int memsize, int chksum) +static int +AdvSendIdleCmd(ADV_DVC_VAR *asc_dvc, + ushort idle_cmd, ADV_DCNT idle_cmd_parameter) { - int i, j, end, len = 0; - ADV_DCNT sum; + int result; + ADV_DCNT i, j; + AdvPortAddr iop_base; - AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0); + iop_base = asc_dvc->iop_base; - for (i = 253 * 2; i < size; i++) { - if (buf[i] == 0xff) { - unsigned short word = (buf[i + 3] << 8) | buf[i + 2]; - for (j = 0; j < buf[i + 1]; j++) { - AdvWriteWordAutoIncLram(iop_base, word); - len += 2; - } - i += 3; - } else if (buf[i] == 0xfe) { - unsigned short word = (buf[i + 2] << 8) | buf[i + 1]; - AdvWriteWordAutoIncLram(iop_base, word); - i += 2; - len += 2; - } else { - unsigned char off = buf[i] * 2; - unsigned short word = (buf[off + 1] << 8) | buf[off]; - AdvWriteWordAutoIncLram(iop_base, word); - len += 2; + /* + * Clear the idle command status which is set by the microcode + * to a non-zero value to indicate when the command is completed. + * The non-zero result is one of the IDLE_CMD_STATUS_* values + */ + AdvWriteWordLram(iop_base, ASC_MC_IDLE_CMD_STATUS, (ushort)0); + + /* + * Write the idle command value after the idle command parameter + * has been written to avoid a race condition. If the order is not + * followed, the microcode may process the idle command before the + * parameters have been written to LRAM. + */ + AdvWriteDWordLramNoSwap(iop_base, ASC_MC_IDLE_CMD_PARAMETER, + cpu_to_le32(idle_cmd_parameter)); + AdvWriteWordLram(iop_base, ASC_MC_IDLE_CMD, idle_cmd); + + /* + * Tickle the RISC to tell it to process the idle command. + */ + AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_B); + if (asc_dvc->chip_type == ADV_CHIP_ASC3550) { + /* + * Clear the tickle value. In the ASC-3550 the RISC flag + * command 'clr_tickle_b' does not work unless the host + * value is cleared. + */ + AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_NOP); + } + + /* Wait for up to 100 millisecond for the idle command to timeout. */ + for (i = 0; i < SCSI_WAIT_100_MSEC; i++) { + /* Poll once each microsecond for command completion. */ + for (j = 0; j < SCSI_US_PER_MSEC; j++) { + AdvReadWordLram(iop_base, ASC_MC_IDLE_CMD_STATUS, + result); + if (result != 0) + return result; + udelay(1); } } - end = len; + BUG(); /* The idle command should never timeout. */ + return ADV_ERROR; +} - while (len < memsize) { - AdvWriteWordAutoIncLram(iop_base, 0); - len += 2; +/* + * Reset SCSI Bus and purge all outstanding requests. + * + * Return Value: + * ADV_TRUE(1) - All requests are purged and SCSI Bus is reset. + * ADV_FALSE(0) - Microcode command failed. + * ADV_ERROR(-1) - Microcode command timed-out. Microcode or IC + * may be hung which requires driver recovery. + */ +static int AdvResetSB(ADV_DVC_VAR *asc_dvc) +{ + int status; + + /* + * Send the SCSI Bus Reset idle start idle command which asserts + * the SCSI Bus Reset signal. + */ + status = AdvSendIdleCmd(asc_dvc, (ushort)IDLE_CMD_SCSI_RESET_START, 0L); + if (status != ADV_TRUE) { + return status; } - /* Verify the microcode checksum. */ - sum = 0; - AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0); + /* + * Delay for the specified SCSI Bus Reset hold time. + * + * The hold time delay is done on the host because the RISC has no + * microsecond accurate timer. + */ + udelay(ASC_SCSI_RESET_HOLD_TIME_US); - for (len = 0; len < end; len += 2) { - sum += AdvReadWordAutoIncLram(iop_base); + /* + * Send the SCSI Bus Reset end idle command which de-asserts + * the SCSI Bus Reset signal and purges any pending requests. + */ + status = AdvSendIdleCmd(asc_dvc, (ushort)IDLE_CMD_SCSI_RESET_END, 0L); + if (status != ADV_TRUE) { + return status; } - if (sum != chksum) - return ASC_IERR_MCODE_CHKSUM; + mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ - return 0; + return status; } /* @@ -12661,6 +8273,4921 @@ static int AdvInitAsc38C1600Driver(ADV_DVC_VAR *asc_dvc) } /* + * Reset chip and SCSI Bus. + * + * Return Value: + * ADV_TRUE(1) - Chip re-initialization and SCSI Bus Reset successful. + * ADV_FALSE(0) - Chip re-initialization and SCSI Bus Reset failure. + */ +static int AdvResetChipAndSB(ADV_DVC_VAR *asc_dvc) +{ + int status; + ushort wdtr_able, sdtr_able, tagqng_able; + ushort ppr_able = 0; + uchar tid, max_cmd[ADV_MAX_TID + 1]; + AdvPortAddr iop_base; + ushort bios_sig; + + iop_base = asc_dvc->iop_base; + + /* + * Save current per TID negotiated values. + */ + AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able); + AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able); + if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { + AdvReadWordLram(iop_base, ASC_MC_PPR_ABLE, ppr_able); + } + AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able); + for (tid = 0; tid <= ADV_MAX_TID; tid++) { + AdvReadByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + tid, + max_cmd[tid]); + } + + /* + * Force the AdvInitAsc3550/38C0800Driver() function to + * perform a SCSI Bus Reset by clearing the BIOS signature word. + * The initialization functions assumes a SCSI Bus Reset is not + * needed if the BIOS signature word is present. + */ + AdvReadWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, bios_sig); + AdvWriteWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, 0); + + /* + * Stop chip and reset it. + */ + AdvWriteWordRegister(iop_base, IOPW_RISC_CSR, ADV_RISC_CSR_STOP); + AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, ADV_CTRL_REG_CMD_RESET); + mdelay(100); + AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, + ADV_CTRL_REG_CMD_WR_IO_REG); + + /* + * Reset Adv Library error code, if any, and try + * re-initializing the chip. + */ + asc_dvc->err_code = 0; + if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { + status = AdvInitAsc38C1600Driver(asc_dvc); + } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { + status = AdvInitAsc38C0800Driver(asc_dvc); + } else { + status = AdvInitAsc3550Driver(asc_dvc); + } + + /* Translate initialization return value to status value. */ + if (status == 0) { + status = ADV_TRUE; + } else { + status = ADV_FALSE; + } + + /* + * Restore the BIOS signature word. + */ + AdvWriteWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, bios_sig); + + /* + * Restore per TID negotiated values. + */ + AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able); + AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able); + if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { + AdvWriteWordLram(iop_base, ASC_MC_PPR_ABLE, ppr_able); + } + AdvWriteWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able); + for (tid = 0; tid <= ADV_MAX_TID; tid++) { + AdvWriteByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + tid, + max_cmd[tid]); + } + + return status; +} + +/* + * adv_async_callback() - Adv Library asynchronous event callback function. + */ +static void adv_async_callback(ADV_DVC_VAR *adv_dvc_varp, uchar code) +{ + switch (code) { + case ADV_ASYNC_SCSI_BUS_RESET_DET: + /* + * The firmware detected a SCSI Bus reset. + */ + ASC_DBG(0, + "adv_async_callback: ADV_ASYNC_SCSI_BUS_RESET_DET\n"); + break; + + case ADV_ASYNC_RDMA_FAILURE: + /* + * Handle RDMA failure by resetting the SCSI Bus and + * possibly the chip if it is unresponsive. Log the error + * with a unique code. + */ + ASC_DBG(0, "adv_async_callback: ADV_ASYNC_RDMA_FAILURE\n"); + AdvResetChipAndSB(adv_dvc_varp); + break; + + case ADV_HOST_SCSI_BUS_RESET: + /* + * Host generated SCSI bus reset occurred. + */ + ASC_DBG(0, "adv_async_callback: ADV_HOST_SCSI_BUS_RESET\n"); + break; + + default: + ASC_DBG1(0, "DvcAsyncCallBack: unknown code 0x%x\n", code); + break; + } +} + +/* + * adv_isr_callback() - Second Level Interrupt Handler called by AdvISR(). + * + * Callback function for the Wide SCSI Adv Library. + */ +static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) +{ + asc_board_t *boardp; + adv_req_t *reqp; + adv_sgblk_t *sgblkp; + struct scsi_cmnd *scp; + struct Scsi_Host *shost; + ADV_DCNT resid_cnt; + + ASC_DBG2(1, "adv_isr_callback: adv_dvc_varp 0x%lx, scsiqp 0x%lx\n", + (ulong)adv_dvc_varp, (ulong)scsiqp); + ASC_DBG_PRT_ADV_SCSI_REQ_Q(2, scsiqp); + + /* + * Get the adv_req_t structure for the command that has been + * completed. The adv_req_t structure actually contains the + * completed ADV_SCSI_REQ_Q structure. + */ + reqp = (adv_req_t *)ADV_U32_TO_VADDR(scsiqp->srb_ptr); + ASC_DBG1(1, "adv_isr_callback: reqp 0x%lx\n", (ulong)reqp); + if (reqp == NULL) { + ASC_PRINT("adv_isr_callback: reqp is NULL\n"); + return; + } + + /* + * Get the struct scsi_cmnd structure and Scsi_Host structure for the + * command that has been completed. + * + * Note: The adv_req_t request structure and adv_sgblk_t structure, + * if any, are dropped, because a board structure pointer can not be + * determined. + */ + scp = reqp->cmndp; + ASC_DBG1(1, "adv_isr_callback: scp 0x%lx\n", (ulong)scp); + if (scp == NULL) { + ASC_PRINT + ("adv_isr_callback: scp is NULL; adv_req_t dropped.\n"); + return; + } + ASC_DBG_PRT_CDB(2, scp->cmnd, scp->cmd_len); + + shost = scp->device->host; + ASC_STATS(shost, callback); + ASC_DBG1(1, "adv_isr_callback: shost 0x%lx\n", (ulong)shost); + + boardp = ASC_BOARDP(shost); + BUG_ON(adv_dvc_varp != &boardp->dvc_var.adv_dvc_var); + + /* + * 'done_status' contains the command's ending status. + */ + switch (scsiqp->done_status) { + case QD_NO_ERROR: + ASC_DBG(2, "adv_isr_callback: QD_NO_ERROR\n"); + scp->result = 0; + + /* + * Check for an underrun condition. + * + * If there was no error and an underrun condition, then + * then return the number of underrun bytes. + */ + resid_cnt = le32_to_cpu(scsiqp->data_cnt); + if (scp->request_bufflen != 0 && resid_cnt != 0 && + resid_cnt <= scp->request_bufflen) { + ASC_DBG1(1, + "adv_isr_callback: underrun condition %lu bytes\n", + (ulong)resid_cnt); + scp->resid = resid_cnt; + } + break; + + case QD_WITH_ERROR: + ASC_DBG(2, "adv_isr_callback: QD_WITH_ERROR\n"); + switch (scsiqp->host_status) { + case QHSTA_NO_ERROR: + if (scsiqp->scsi_status == SAM_STAT_CHECK_CONDITION) { + ASC_DBG(2, + "adv_isr_callback: SAM_STAT_CHECK_CONDITION\n"); + ASC_DBG_PRT_SENSE(2, scp->sense_buffer, + sizeof(scp->sense_buffer)); + /* + * Note: The 'status_byte()' macro used by + * target drivers defined in scsi.h shifts the + * status byte returned by host drivers right + * by 1 bit. This is why target drivers also + * use right shifted status byte definitions. + * For instance target drivers use + * CHECK_CONDITION, defined to 0x1, instead of + * the SCSI defined check condition value of + * 0x2. Host drivers are supposed to return + * the status byte as it is defined by SCSI. + */ + scp->result = DRIVER_BYTE(DRIVER_SENSE) | + STATUS_BYTE(scsiqp->scsi_status); + } else { + scp->result = STATUS_BYTE(scsiqp->scsi_status); + } + break; + + default: + /* Some other QHSTA error occurred. */ + ASC_DBG1(1, "adv_isr_callback: host_status 0x%x\n", + scsiqp->host_status); + scp->result = HOST_BYTE(DID_BAD_TARGET); + break; + } + break; + + case QD_ABORTED_BY_HOST: + ASC_DBG(1, "adv_isr_callback: QD_ABORTED_BY_HOST\n"); + scp->result = + HOST_BYTE(DID_ABORT) | STATUS_BYTE(scsiqp->scsi_status); + break; + + default: + ASC_DBG1(1, "adv_isr_callback: done_status 0x%x\n", + scsiqp->done_status); + scp->result = + HOST_BYTE(DID_ERROR) | STATUS_BYTE(scsiqp->scsi_status); + break; + } + + /* + * If the 'init_tidmask' bit isn't already set for the target and the + * current request finished normally, then set the bit for the target + * to indicate that a device is present. + */ + if ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(scp->device->id)) == 0 && + scsiqp->done_status == QD_NO_ERROR && + scsiqp->host_status == QHSTA_NO_ERROR) { + boardp->init_tidmask |= ADV_TID_TO_TIDMASK(scp->device->id); + } + + asc_scsi_done(scp); + + /* + * Free all 'adv_sgblk_t' structures allocated for the request. + */ + while ((sgblkp = reqp->sgblkp) != NULL) { + /* Remove 'sgblkp' from the request list. */ + reqp->sgblkp = sgblkp->next_sgblkp; + + /* Add 'sgblkp' to the board free list. */ + sgblkp->next_sgblkp = boardp->adv_sgblkp; + boardp->adv_sgblkp = sgblkp; + } + + /* + * Free the adv_req_t structure used with the command by adding + * it back to the board free list. + */ + reqp->next_reqp = boardp->adv_reqp; + boardp->adv_reqp = reqp; + + ASC_DBG(1, "adv_isr_callback: done\n"); + + return; +} + +/* + * Adv Library Interrupt Service Routine + * + * This function is called by a driver's interrupt service routine. + * The function disables and re-enables interrupts. + * + * When a microcode idle command is completed, the ADV_DVC_VAR + * 'idle_cmd_done' field is set to ADV_TRUE. + * + * Note: AdvISR() can be called when interrupts are disabled or even + * when there is no hardware interrupt condition present. It will + * always check for completed idle commands and microcode requests. + * This is an important feature that shouldn't be changed because it + * allows commands to be completed from polling mode loops. + * + * Return: + * ADV_TRUE(1) - interrupt was pending + * ADV_FALSE(0) - no interrupt was pending + */ +static int AdvISR(ADV_DVC_VAR *asc_dvc) +{ + AdvPortAddr iop_base; + uchar int_stat; + ushort target_bit; + ADV_CARR_T *free_carrp; + ADV_VADDR irq_next_vpa; + ADV_SCSI_REQ_Q *scsiq; + + iop_base = asc_dvc->iop_base; + + /* Reading the register clears the interrupt. */ + int_stat = AdvReadByteRegister(iop_base, IOPB_INTR_STATUS_REG); + + if ((int_stat & (ADV_INTR_STATUS_INTRA | ADV_INTR_STATUS_INTRB | + ADV_INTR_STATUS_INTRC)) == 0) { + return ADV_FALSE; + } + + /* + * Notify the driver of an asynchronous microcode condition by + * calling the adv_async_callback function. The function + * is passed the microcode ASC_MC_INTRB_CODE byte value. + */ + if (int_stat & ADV_INTR_STATUS_INTRB) { + uchar intrb_code; + + AdvReadByteLram(iop_base, ASC_MC_INTRB_CODE, intrb_code); + + if (asc_dvc->chip_type == ADV_CHIP_ASC3550 || + asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { + if (intrb_code == ADV_ASYNC_CARRIER_READY_FAILURE && + asc_dvc->carr_pending_cnt != 0) { + AdvWriteByteRegister(iop_base, IOPB_TICKLE, + ADV_TICKLE_A); + if (asc_dvc->chip_type == ADV_CHIP_ASC3550) { + AdvWriteByteRegister(iop_base, + IOPB_TICKLE, + ADV_TICKLE_NOP); + } + } + } + + adv_async_callback(asc_dvc, intrb_code); + } + + /* + * Check if the IRQ stopper carrier contains a completed request. + */ + while (((irq_next_vpa = + le32_to_cpu(asc_dvc->irq_sp->next_vpa)) & ASC_RQ_DONE) != 0) { + /* + * Get a pointer to the newly completed ADV_SCSI_REQ_Q structure. + * The RISC will have set 'areq_vpa' to a virtual address. + * + * The firmware will have copied the ASC_SCSI_REQ_Q.scsiq_ptr + * field to the carrier ADV_CARR_T.areq_vpa field. The conversion + * below complements the conversion of ASC_SCSI_REQ_Q.scsiq_ptr' + * in AdvExeScsiQueue(). + */ + scsiq = (ADV_SCSI_REQ_Q *) + ADV_U32_TO_VADDR(le32_to_cpu(asc_dvc->irq_sp->areq_vpa)); + + /* + * Request finished with good status and the queue was not + * DMAed to host memory by the firmware. Set all status fields + * to indicate good status. + */ + if ((irq_next_vpa & ASC_RQ_GOOD) != 0) { + scsiq->done_status = QD_NO_ERROR; + scsiq->host_status = scsiq->scsi_status = 0; + scsiq->data_cnt = 0L; + } + + /* + * Advance the stopper pointer to the next carrier + * ignoring the lower four bits. Free the previous + * stopper carrier. + */ + free_carrp = asc_dvc->irq_sp; + asc_dvc->irq_sp = (ADV_CARR_T *) + ADV_U32_TO_VADDR(ASC_GET_CARRP(irq_next_vpa)); + + free_carrp->next_vpa = + cpu_to_le32(ADV_VADDR_TO_U32(asc_dvc->carr_freelist)); + asc_dvc->carr_freelist = free_carrp; + asc_dvc->carr_pending_cnt--; + + target_bit = ADV_TID_TO_TIDMASK(scsiq->target_id); + + /* + * Clear request microcode control flag. + */ + scsiq->cntl = 0; + + /* + * Notify the driver of the completed request by passing + * the ADV_SCSI_REQ_Q pointer to its callback function. + */ + scsiq->a_flag |= ADV_SCSIQ_DONE; + adv_isr_callback(asc_dvc, scsiq); + /* + * Note: After the driver callback function is called, 'scsiq' + * can no longer be referenced. + * + * Fall through and continue processing other completed + * requests... + */ + } + return ADV_TRUE; +} + +static int AscSetLibErrorCode(ASC_DVC_VAR *asc_dvc, ushort err_code) +{ + if (asc_dvc->err_code == 0) { + asc_dvc->err_code = err_code; + AscWriteLramWord(asc_dvc->iop_base, ASCV_ASCDVC_ERR_CODE_W, + err_code); + } + return err_code; +} + +static void AscAckInterrupt(PortAddr iop_base) +{ + uchar host_flag; + uchar risc_flag; + ushort loop; + + loop = 0; + do { + risc_flag = AscReadLramByte(iop_base, ASCV_RISC_FLAG_B); + if (loop++ > 0x7FFF) { + break; + } + } while ((risc_flag & ASC_RISC_FLAG_GEN_INT) != 0); + host_flag = + AscReadLramByte(iop_base, + ASCV_HOST_FLAG_B) & (~ASC_HOST_FLAG_ACK_INT); + AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, + (uchar)(host_flag | ASC_HOST_FLAG_ACK_INT)); + AscSetChipStatus(iop_base, CIW_INT_ACK); + loop = 0; + while (AscGetChipStatus(iop_base) & CSW_INT_PENDING) { + AscSetChipStatus(iop_base, CIW_INT_ACK); + if (loop++ > 3) { + break; + } + } + AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, host_flag); + return; +} + +static uchar AscGetSynPeriodIndex(ASC_DVC_VAR *asc_dvc, uchar syn_time) +{ + uchar *period_table; + int max_index; + int min_index; + int i; + + period_table = asc_dvc->sdtr_period_tbl; + max_index = (int)asc_dvc->max_sdtr_index; + min_index = (int)asc_dvc->host_init_sdtr_index; + if ((syn_time <= period_table[max_index])) { + for (i = min_index; i < (max_index - 1); i++) { + if (syn_time <= period_table[i]) { + return (uchar)i; + } + } + return (uchar)max_index; + } else { + return (uchar)(max_index + 1); + } +} + +static uchar +AscMsgOutSDTR(ASC_DVC_VAR *asc_dvc, uchar sdtr_period, uchar sdtr_offset) +{ + EXT_MSG sdtr_buf; + uchar sdtr_period_index; + PortAddr iop_base; + + iop_base = asc_dvc->iop_base; + sdtr_buf.msg_type = EXTENDED_MESSAGE; + sdtr_buf.msg_len = MS_SDTR_LEN; + sdtr_buf.msg_req = EXTENDED_SDTR; + sdtr_buf.xfer_period = sdtr_period; + sdtr_offset &= ASC_SYN_MAX_OFFSET; + sdtr_buf.req_ack_offset = sdtr_offset; + sdtr_period_index = AscGetSynPeriodIndex(asc_dvc, sdtr_period); + if (sdtr_period_index <= asc_dvc->max_sdtr_index) { + AscMemWordCopyPtrToLram(iop_base, ASCV_MSGOUT_BEG, + (uchar *)&sdtr_buf, + sizeof(EXT_MSG) >> 1); + return ((sdtr_period_index << 4) | sdtr_offset); + } else { + sdtr_buf.req_ack_offset = 0; + AscMemWordCopyPtrToLram(iop_base, ASCV_MSGOUT_BEG, + (uchar *)&sdtr_buf, + sizeof(EXT_MSG) >> 1); + return 0; + } +} + +static uchar +AscCalSDTRData(ASC_DVC_VAR *asc_dvc, uchar sdtr_period, uchar syn_offset) +{ + uchar byte; + uchar sdtr_period_ix; + + sdtr_period_ix = AscGetSynPeriodIndex(asc_dvc, sdtr_period); + if (sdtr_period_ix > asc_dvc->max_sdtr_index) { + return 0xFF; + } + byte = (sdtr_period_ix << 4) | (syn_offset & ASC_SYN_MAX_OFFSET); + return byte; +} + +static int AscSetChipSynRegAtID(PortAddr iop_base, uchar id, uchar sdtr_data) +{ + ASC_SCSI_BIT_ID_TYPE org_id; + int i; + int sta = TRUE; + + AscSetBank(iop_base, 1); + org_id = AscReadChipDvcID(iop_base); + for (i = 0; i <= ASC_MAX_TID; i++) { + if (org_id == (0x01 << i)) + break; + } + org_id = (ASC_SCSI_BIT_ID_TYPE) i; + AscWriteChipDvcID(iop_base, id); + if (AscReadChipDvcID(iop_base) == (0x01 << id)) { + AscSetBank(iop_base, 0); + AscSetChipSyn(iop_base, sdtr_data); + if (AscGetChipSyn(iop_base) != sdtr_data) { + sta = FALSE; + } + } else { + sta = FALSE; + } + AscSetBank(iop_base, 1); + AscWriteChipDvcID(iop_base, org_id); + AscSetBank(iop_base, 0); + return (sta); +} + +static void AscSetChipSDTR(PortAddr iop_base, uchar sdtr_data, uchar tid_no) +{ + AscSetChipSynRegAtID(iop_base, tid_no, sdtr_data); + AscPutMCodeSDTRDoneAtID(iop_base, tid_no, sdtr_data); +} + +static int AscIsrChipHalted(ASC_DVC_VAR *asc_dvc) +{ + EXT_MSG ext_msg; + EXT_MSG out_msg; + ushort halt_q_addr; + int sdtr_accept; + ushort int_halt_code; + ASC_SCSI_BIT_ID_TYPE scsi_busy; + ASC_SCSI_BIT_ID_TYPE target_id; + PortAddr iop_base; + uchar tag_code; + uchar q_status; + uchar halt_qp; + uchar sdtr_data; + uchar target_ix; + uchar q_cntl, tid_no; + uchar cur_dvc_qng; + uchar asyn_sdtr; + uchar scsi_status; + asc_board_t *boardp; + + BUG_ON(!asc_dvc->drv_ptr); + boardp = asc_dvc->drv_ptr; + + iop_base = asc_dvc->iop_base; + int_halt_code = AscReadLramWord(iop_base, ASCV_HALTCODE_W); + + halt_qp = AscReadLramByte(iop_base, ASCV_CURCDB_B); + halt_q_addr = ASC_QNO_TO_QADDR(halt_qp); + target_ix = AscReadLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_TARGET_IX)); + q_cntl = AscReadLramByte(iop_base, + (ushort)(halt_q_addr + (ushort)ASC_SCSIQ_B_CNTL)); + tid_no = ASC_TIX_TO_TID(target_ix); + target_id = (uchar)ASC_TID_TO_TARGET_ID(tid_no); + if (asc_dvc->pci_fix_asyn_xfer & target_id) { + asyn_sdtr = ASYN_SDTR_DATA_FIX_PCI_REV_AB; + } else { + asyn_sdtr = 0; + } + if (int_halt_code == ASC_HALT_DISABLE_ASYN_USE_SYN_FIX) { + if (asc_dvc->pci_fix_asyn_xfer & target_id) { + AscSetChipSDTR(iop_base, 0, tid_no); + boardp->sdtr_data[tid_no] = 0; + } + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } else if (int_halt_code == ASC_HALT_ENABLE_ASYN_USE_SYN_FIX) { + if (asc_dvc->pci_fix_asyn_xfer & target_id) { + AscSetChipSDTR(iop_base, asyn_sdtr, tid_no); + boardp->sdtr_data[tid_no] = asyn_sdtr; + } + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } else if (int_halt_code == ASC_HALT_EXTMSG_IN) { + AscMemWordCopyPtrFromLram(iop_base, + ASCV_MSGIN_BEG, + (uchar *)&ext_msg, + sizeof(EXT_MSG) >> 1); + + if (ext_msg.msg_type == EXTENDED_MESSAGE && + ext_msg.msg_req == EXTENDED_SDTR && + ext_msg.msg_len == MS_SDTR_LEN) { + sdtr_accept = TRUE; + if ((ext_msg.req_ack_offset > ASC_SYN_MAX_OFFSET)) { + + sdtr_accept = FALSE; + ext_msg.req_ack_offset = ASC_SYN_MAX_OFFSET; + } + if ((ext_msg.xfer_period < + asc_dvc->sdtr_period_tbl[asc_dvc-> + host_init_sdtr_index]) + || (ext_msg.xfer_period > + asc_dvc->sdtr_period_tbl[asc_dvc-> + max_sdtr_index])) { + sdtr_accept = FALSE; + ext_msg.xfer_period = + asc_dvc->sdtr_period_tbl[asc_dvc-> + host_init_sdtr_index]; + } + if (sdtr_accept) { + sdtr_data = + AscCalSDTRData(asc_dvc, ext_msg.xfer_period, + ext_msg.req_ack_offset); + if ((sdtr_data == 0xFF)) { + + q_cntl |= QC_MSG_OUT; + asc_dvc->init_sdtr &= ~target_id; + asc_dvc->sdtr_done &= ~target_id; + AscSetChipSDTR(iop_base, asyn_sdtr, + tid_no); + boardp->sdtr_data[tid_no] = asyn_sdtr; + } + } + if (ext_msg.req_ack_offset == 0) { + + q_cntl &= ~QC_MSG_OUT; + asc_dvc->init_sdtr &= ~target_id; + asc_dvc->sdtr_done &= ~target_id; + AscSetChipSDTR(iop_base, asyn_sdtr, tid_no); + } else { + if (sdtr_accept && (q_cntl & QC_MSG_OUT)) { + + q_cntl &= ~QC_MSG_OUT; + asc_dvc->sdtr_done |= target_id; + asc_dvc->init_sdtr |= target_id; + asc_dvc->pci_fix_asyn_xfer &= + ~target_id; + sdtr_data = + AscCalSDTRData(asc_dvc, + ext_msg.xfer_period, + ext_msg. + req_ack_offset); + AscSetChipSDTR(iop_base, sdtr_data, + tid_no); + boardp->sdtr_data[tid_no] = sdtr_data; + } else { + + q_cntl |= QC_MSG_OUT; + AscMsgOutSDTR(asc_dvc, + ext_msg.xfer_period, + ext_msg.req_ack_offset); + asc_dvc->pci_fix_asyn_xfer &= + ~target_id; + sdtr_data = + AscCalSDTRData(asc_dvc, + ext_msg.xfer_period, + ext_msg. + req_ack_offset); + AscSetChipSDTR(iop_base, sdtr_data, + tid_no); + boardp->sdtr_data[tid_no] = sdtr_data; + asc_dvc->sdtr_done |= target_id; + asc_dvc->init_sdtr |= target_id; + } + } + + AscWriteLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_CNTL), + q_cntl); + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } else if (ext_msg.msg_type == EXTENDED_MESSAGE && + ext_msg.msg_req == EXTENDED_WDTR && + ext_msg.msg_len == MS_WDTR_LEN) { + + ext_msg.wdtr_width = 0; + AscMemWordCopyPtrToLram(iop_base, + ASCV_MSGOUT_BEG, + (uchar *)&ext_msg, + sizeof(EXT_MSG) >> 1); + q_cntl |= QC_MSG_OUT; + AscWriteLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_CNTL), + q_cntl); + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } else { + + ext_msg.msg_type = MESSAGE_REJECT; + AscMemWordCopyPtrToLram(iop_base, + ASCV_MSGOUT_BEG, + (uchar *)&ext_msg, + sizeof(EXT_MSG) >> 1); + q_cntl |= QC_MSG_OUT; + AscWriteLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_CNTL), + q_cntl); + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } + } else if (int_halt_code == ASC_HALT_CHK_CONDITION) { + + q_cntl |= QC_REQ_SENSE; + + if ((asc_dvc->init_sdtr & target_id) != 0) { + + asc_dvc->sdtr_done &= ~target_id; + + sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no); + q_cntl |= QC_MSG_OUT; + AscMsgOutSDTR(asc_dvc, + asc_dvc-> + sdtr_period_tbl[(sdtr_data >> 4) & + (uchar)(asc_dvc-> + max_sdtr_index - + 1)], + (uchar)(sdtr_data & (uchar) + ASC_SYN_MAX_OFFSET)); + } + + AscWriteLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_CNTL), q_cntl); + + tag_code = AscReadLramByte(iop_base, + (ushort)(halt_q_addr + (ushort) + ASC_SCSIQ_B_TAG_CODE)); + tag_code &= 0xDC; + if ((asc_dvc->pci_fix_asyn_xfer & target_id) + && !(asc_dvc->pci_fix_asyn_xfer_always & target_id) + ) { + + tag_code |= (ASC_TAG_FLAG_DISABLE_DISCONNECT + | ASC_TAG_FLAG_DISABLE_ASYN_USE_SYN_FIX); + + } + AscWriteLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_TAG_CODE), + tag_code); + + q_status = AscReadLramByte(iop_base, + (ushort)(halt_q_addr + (ushort) + ASC_SCSIQ_B_STATUS)); + q_status |= (QS_READY | QS_BUSY); + AscWriteLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_STATUS), + q_status); + + scsi_busy = AscReadLramByte(iop_base, (ushort)ASCV_SCSIBUSY_B); + scsi_busy &= ~target_id; + AscWriteLramByte(iop_base, (ushort)ASCV_SCSIBUSY_B, scsi_busy); + + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } else if (int_halt_code == ASC_HALT_SDTR_REJECTED) { + + AscMemWordCopyPtrFromLram(iop_base, + ASCV_MSGOUT_BEG, + (uchar *)&out_msg, + sizeof(EXT_MSG) >> 1); + + if ((out_msg.msg_type == EXTENDED_MESSAGE) && + (out_msg.msg_len == MS_SDTR_LEN) && + (out_msg.msg_req == EXTENDED_SDTR)) { + + asc_dvc->init_sdtr &= ~target_id; + asc_dvc->sdtr_done &= ~target_id; + AscSetChipSDTR(iop_base, asyn_sdtr, tid_no); + boardp->sdtr_data[tid_no] = asyn_sdtr; + } + q_cntl &= ~QC_MSG_OUT; + AscWriteLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_CNTL), q_cntl); + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } else if (int_halt_code == ASC_HALT_SS_QUEUE_FULL) { + + scsi_status = AscReadLramByte(iop_base, + (ushort)((ushort)halt_q_addr + + (ushort) + ASC_SCSIQ_SCSI_STATUS)); + cur_dvc_qng = + AscReadLramByte(iop_base, + (ushort)((ushort)ASC_QADR_BEG + + (ushort)target_ix)); + if ((cur_dvc_qng > 0) && (asc_dvc->cur_dvc_qng[tid_no] > 0)) { + + scsi_busy = AscReadLramByte(iop_base, + (ushort)ASCV_SCSIBUSY_B); + scsi_busy |= target_id; + AscWriteLramByte(iop_base, + (ushort)ASCV_SCSIBUSY_B, scsi_busy); + asc_dvc->queue_full_or_busy |= target_id; + + if (scsi_status == SAM_STAT_TASK_SET_FULL) { + if (cur_dvc_qng > ASC_MIN_TAGGED_CMD) { + cur_dvc_qng -= 1; + asc_dvc->max_dvc_qng[tid_no] = + cur_dvc_qng; + + AscWriteLramByte(iop_base, + (ushort)((ushort) + ASCV_MAX_DVC_QNG_BEG + + (ushort) + tid_no), + cur_dvc_qng); + + /* + * Set the device queue depth to the + * number of active requests when the + * QUEUE FULL condition was encountered. + */ + boardp->queue_full |= target_id; + boardp->queue_full_cnt[tid_no] = + cur_dvc_qng; + } + } + } + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } +#if CC_VERY_LONG_SG_LIST + else if (int_halt_code == ASC_HALT_HOST_COPY_SG_LIST_TO_RISC) { + uchar q_no; + ushort q_addr; + uchar sg_wk_q_no; + uchar first_sg_wk_q_no; + ASC_SCSI_Q *scsiq; /* Ptr to driver request. */ + ASC_SG_HEAD *sg_head; /* Ptr to driver SG request. */ + ASC_SG_LIST_Q scsi_sg_q; /* Structure written to queue. */ + ushort sg_list_dwords; + ushort sg_entry_cnt; + uchar next_qp; + int i; + + q_no = AscReadLramByte(iop_base, (ushort)ASCV_REQ_SG_LIST_QP); + if (q_no == ASC_QLINK_END) + return 0; + + q_addr = ASC_QNO_TO_QADDR(q_no); + + /* + * Convert the request's SRB pointer to a host ASC_SCSI_REQ + * structure pointer using a macro provided by the driver. + * The ASC_SCSI_REQ pointer provides a pointer to the + * host ASC_SG_HEAD structure. + */ + /* Read request's SRB pointer. */ + scsiq = (ASC_SCSI_Q *) + ASC_SRB2SCSIQ(ASC_U32_TO_VADDR(AscReadLramDWord(iop_base, + (ushort) + (q_addr + + ASC_SCSIQ_D_SRBPTR)))); + + /* + * Get request's first and working SG queue. + */ + sg_wk_q_no = AscReadLramByte(iop_base, + (ushort)(q_addr + + ASC_SCSIQ_B_SG_WK_QP)); + + first_sg_wk_q_no = AscReadLramByte(iop_base, + (ushort)(q_addr + + ASC_SCSIQ_B_FIRST_SG_WK_QP)); + + /* + * Reset request's working SG queue back to the + * first SG queue. + */ + AscWriteLramByte(iop_base, + (ushort)(q_addr + + (ushort)ASC_SCSIQ_B_SG_WK_QP), + first_sg_wk_q_no); + + sg_head = scsiq->sg_head; + + /* + * Set sg_entry_cnt to the number of SG elements + * that will be completed on this interrupt. + * + * Note: The allocated SG queues contain ASC_MAX_SG_LIST - 1 + * SG elements. The data_cnt and data_addr fields which + * add 1 to the SG element capacity are not used when + * restarting SG handling after a halt. + */ + if (scsiq->remain_sg_entry_cnt > (ASC_MAX_SG_LIST - 1)) { + sg_entry_cnt = ASC_MAX_SG_LIST - 1; + + /* + * Keep track of remaining number of SG elements that + * will need to be handled on the next interrupt. + */ + scsiq->remain_sg_entry_cnt -= (ASC_MAX_SG_LIST - 1); + } else { + sg_entry_cnt = scsiq->remain_sg_entry_cnt; + scsiq->remain_sg_entry_cnt = 0; + } + + /* + * Copy SG elements into the list of allocated SG queues. + * + * Last index completed is saved in scsiq->next_sg_index. + */ + next_qp = first_sg_wk_q_no; + q_addr = ASC_QNO_TO_QADDR(next_qp); + scsi_sg_q.sg_head_qp = q_no; + scsi_sg_q.cntl = QCSG_SG_XFER_LIST; + for (i = 0; i < sg_head->queue_cnt; i++) { + scsi_sg_q.seq_no = i + 1; + if (sg_entry_cnt > ASC_SG_LIST_PER_Q) { + sg_list_dwords = (uchar)(ASC_SG_LIST_PER_Q * 2); + sg_entry_cnt -= ASC_SG_LIST_PER_Q; + /* + * After very first SG queue RISC FW uses next + * SG queue first element then checks sg_list_cnt + * against zero and then decrements, so set + * sg_list_cnt 1 less than number of SG elements + * in each SG queue. + */ + scsi_sg_q.sg_list_cnt = ASC_SG_LIST_PER_Q - 1; + scsi_sg_q.sg_cur_list_cnt = + ASC_SG_LIST_PER_Q - 1; + } else { + /* + * This is the last SG queue in the list of + * allocated SG queues. If there are more + * SG elements than will fit in the allocated + * queues, then set the QCSG_SG_XFER_MORE flag. + */ + if (scsiq->remain_sg_entry_cnt != 0) { + scsi_sg_q.cntl |= QCSG_SG_XFER_MORE; + } else { + scsi_sg_q.cntl |= QCSG_SG_XFER_END; + } + /* equals sg_entry_cnt * 2 */ + sg_list_dwords = sg_entry_cnt << 1; + scsi_sg_q.sg_list_cnt = sg_entry_cnt - 1; + scsi_sg_q.sg_cur_list_cnt = sg_entry_cnt - 1; + sg_entry_cnt = 0; + } + + scsi_sg_q.q_no = next_qp; + AscMemWordCopyPtrToLram(iop_base, + q_addr + ASC_SCSIQ_SGHD_CPY_BEG, + (uchar *)&scsi_sg_q, + sizeof(ASC_SG_LIST_Q) >> 1); + + AscMemDWordCopyPtrToLram(iop_base, + q_addr + ASC_SGQ_LIST_BEG, + (uchar *)&sg_head-> + sg_list[scsiq->next_sg_index], + sg_list_dwords); + + scsiq->next_sg_index += ASC_SG_LIST_PER_Q; + + /* + * If the just completed SG queue contained the + * last SG element, then no more SG queues need + * to be written. + */ + if (scsi_sg_q.cntl & QCSG_SG_XFER_END) { + break; + } + + next_qp = AscReadLramByte(iop_base, + (ushort)(q_addr + + ASC_SCSIQ_B_FWD)); + q_addr = ASC_QNO_TO_QADDR(next_qp); + } + + /* + * Clear the halt condition so the RISC will be restarted + * after the return. + */ + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } +#endif /* CC_VERY_LONG_SG_LIST */ + return (0); +} + +/* + * void + * DvcGetQinfo(PortAddr iop_base, ushort s_addr, uchar *inbuf, int words) + * + * Calling/Exit State: + * none + * + * Description: + * Input an ASC_QDONE_INFO structure from the chip + */ +static void +DvcGetQinfo(PortAddr iop_base, ushort s_addr, uchar *inbuf, int words) +{ + int i; + ushort word; + + AscSetChipLramAddr(iop_base, s_addr); + for (i = 0; i < 2 * words; i += 2) { + if (i == 10) { + continue; + } + word = inpw(iop_base + IOP_RAM_DATA); + inbuf[i] = word & 0xff; + inbuf[i + 1] = (word >> 8) & 0xff; + } + ASC_DBG_PRT_HEX(2, "DvcGetQinfo", inbuf, 2 * words); +} + +static uchar +_AscCopyLramScsiDoneQ(PortAddr iop_base, + ushort q_addr, + ASC_QDONE_INFO *scsiq, ASC_DCNT max_dma_count) +{ + ushort _val; + uchar sg_queue_cnt; + + DvcGetQinfo(iop_base, + q_addr + ASC_SCSIQ_DONE_INFO_BEG, + (uchar *)scsiq, + (sizeof(ASC_SCSIQ_2) + sizeof(ASC_SCSIQ_3)) / 2); + + _val = AscReadLramWord(iop_base, + (ushort)(q_addr + (ushort)ASC_SCSIQ_B_STATUS)); + scsiq->q_status = (uchar)_val; + scsiq->q_no = (uchar)(_val >> 8); + _val = AscReadLramWord(iop_base, + (ushort)(q_addr + (ushort)ASC_SCSIQ_B_CNTL)); + scsiq->cntl = (uchar)_val; + sg_queue_cnt = (uchar)(_val >> 8); + _val = AscReadLramWord(iop_base, + (ushort)(q_addr + + (ushort)ASC_SCSIQ_B_SENSE_LEN)); + scsiq->sense_len = (uchar)_val; + scsiq->extra_bytes = (uchar)(_val >> 8); + + /* + * Read high word of remain bytes from alternate location. + */ + scsiq->remain_bytes = (((ADV_DCNT)AscReadLramWord(iop_base, + (ushort)(q_addr + + (ushort) + ASC_SCSIQ_W_ALT_DC1))) + << 16); + /* + * Read low word of remain bytes from original location. + */ + scsiq->remain_bytes += AscReadLramWord(iop_base, + (ushort)(q_addr + (ushort) + ASC_SCSIQ_DW_REMAIN_XFER_CNT)); + + scsiq->remain_bytes &= max_dma_count; + return sg_queue_cnt; +} + +/* + * asc_isr_callback() - Second Level Interrupt Handler called by AscISR(). + * + * Interrupt callback function for the Narrow SCSI Asc Library. + */ +static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) +{ + asc_board_t *boardp; + struct scsi_cmnd *scp; + struct Scsi_Host *shost; + + ASC_DBG2(1, "asc_isr_callback: asc_dvc_varp 0x%lx, qdonep 0x%lx\n", + (ulong)asc_dvc_varp, (ulong)qdonep); + ASC_DBG_PRT_ASC_QDONE_INFO(2, qdonep); + + /* + * Get the struct scsi_cmnd structure and Scsi_Host structure for the + * command that has been completed. + */ + scp = (struct scsi_cmnd *)ASC_U32_TO_VADDR(qdonep->d2.srb_ptr); + ASC_DBG1(1, "asc_isr_callback: scp 0x%lx\n", (ulong)scp); + + if (scp == NULL) { + ASC_PRINT("asc_isr_callback: scp is NULL\n"); + return; + } + ASC_DBG_PRT_CDB(2, scp->cmnd, scp->cmd_len); + + shost = scp->device->host; + ASC_STATS(shost, callback); + ASC_DBG1(1, "asc_isr_callback: shost 0x%lx\n", (ulong)shost); + + boardp = ASC_BOARDP(shost); + BUG_ON(asc_dvc_varp != &boardp->dvc_var.asc_dvc_var); + + /* + * 'qdonep' contains the command's ending status. + */ + switch (qdonep->d3.done_stat) { + case QD_NO_ERROR: + ASC_DBG(2, "asc_isr_callback: QD_NO_ERROR\n"); + scp->result = 0; + + /* + * Check for an underrun condition. + * + * If there was no error and an underrun condition, then + * return the number of underrun bytes. + */ + if (scp->request_bufflen != 0 && qdonep->remain_bytes != 0 && + qdonep->remain_bytes <= scp->request_bufflen) { + ASC_DBG1(1, + "asc_isr_callback: underrun condition %u bytes\n", + (unsigned)qdonep->remain_bytes); + scp->resid = qdonep->remain_bytes; + } + break; + + case QD_WITH_ERROR: + ASC_DBG(2, "asc_isr_callback: QD_WITH_ERROR\n"); + switch (qdonep->d3.host_stat) { + case QHSTA_NO_ERROR: + if (qdonep->d3.scsi_stat == SAM_STAT_CHECK_CONDITION) { + ASC_DBG(2, + "asc_isr_callback: SAM_STAT_CHECK_CONDITION\n"); + ASC_DBG_PRT_SENSE(2, scp->sense_buffer, + sizeof(scp->sense_buffer)); + /* + * Note: The 'status_byte()' macro used by + * target drivers defined in scsi.h shifts the + * status byte returned by host drivers right + * by 1 bit. This is why target drivers also + * use right shifted status byte definitions. + * For instance target drivers use + * CHECK_CONDITION, defined to 0x1, instead of + * the SCSI defined check condition value of + * 0x2. Host drivers are supposed to return + * the status byte as it is defined by SCSI. + */ + scp->result = DRIVER_BYTE(DRIVER_SENSE) | + STATUS_BYTE(qdonep->d3.scsi_stat); + } else { + scp->result = STATUS_BYTE(qdonep->d3.scsi_stat); + } + break; + + default: + /* QHSTA error occurred */ + ASC_DBG1(1, "asc_isr_callback: host_stat 0x%x\n", + qdonep->d3.host_stat); + scp->result = HOST_BYTE(DID_BAD_TARGET); + break; + } + break; + + case QD_ABORTED_BY_HOST: + ASC_DBG(1, "asc_isr_callback: QD_ABORTED_BY_HOST\n"); + scp->result = + HOST_BYTE(DID_ABORT) | MSG_BYTE(qdonep->d3. + scsi_msg) | + STATUS_BYTE(qdonep->d3.scsi_stat); + break; + + default: + ASC_DBG1(1, "asc_isr_callback: done_stat 0x%x\n", + qdonep->d3.done_stat); + scp->result = + HOST_BYTE(DID_ERROR) | MSG_BYTE(qdonep->d3. + scsi_msg) | + STATUS_BYTE(qdonep->d3.scsi_stat); + break; + } + + /* + * If the 'init_tidmask' bit isn't already set for the target and the + * current request finished normally, then set the bit for the target + * to indicate that a device is present. + */ + if ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(scp->device->id)) == 0 && + qdonep->d3.done_stat == QD_NO_ERROR && + qdonep->d3.host_stat == QHSTA_NO_ERROR) { + boardp->init_tidmask |= ADV_TID_TO_TIDMASK(scp->device->id); + } + + asc_scsi_done(scp); + + return; +} + +static int AscIsrQDone(ASC_DVC_VAR *asc_dvc) +{ + uchar next_qp; + uchar n_q_used; + uchar sg_list_qp; + uchar sg_queue_cnt; + uchar q_cnt; + uchar done_q_tail; + uchar tid_no; + ASC_SCSI_BIT_ID_TYPE scsi_busy; + ASC_SCSI_BIT_ID_TYPE target_id; + PortAddr iop_base; + ushort q_addr; + ushort sg_q_addr; + uchar cur_target_qng; + ASC_QDONE_INFO scsiq_buf; + ASC_QDONE_INFO *scsiq; + int false_overrun; + + iop_base = asc_dvc->iop_base; + n_q_used = 1; + scsiq = (ASC_QDONE_INFO *)&scsiq_buf; + done_q_tail = (uchar)AscGetVarDoneQTail(iop_base); + q_addr = ASC_QNO_TO_QADDR(done_q_tail); + next_qp = AscReadLramByte(iop_base, + (ushort)(q_addr + (ushort)ASC_SCSIQ_B_FWD)); + if (next_qp != ASC_QLINK_END) { + AscPutVarDoneQTail(iop_base, next_qp); + q_addr = ASC_QNO_TO_QADDR(next_qp); + sg_queue_cnt = _AscCopyLramScsiDoneQ(iop_base, q_addr, scsiq, + asc_dvc->max_dma_count); + AscWriteLramByte(iop_base, + (ushort)(q_addr + + (ushort)ASC_SCSIQ_B_STATUS), + (uchar)(scsiq-> + q_status & (uchar)~(QS_READY | + QS_ABORTED))); + tid_no = ASC_TIX_TO_TID(scsiq->d2.target_ix); + target_id = ASC_TIX_TO_TARGET_ID(scsiq->d2.target_ix); + if ((scsiq->cntl & QC_SG_HEAD) != 0) { + sg_q_addr = q_addr; + sg_list_qp = next_qp; + for (q_cnt = 0; q_cnt < sg_queue_cnt; q_cnt++) { + sg_list_qp = AscReadLramByte(iop_base, + (ushort)(sg_q_addr + + (ushort) + ASC_SCSIQ_B_FWD)); + sg_q_addr = ASC_QNO_TO_QADDR(sg_list_qp); + if (sg_list_qp == ASC_QLINK_END) { + AscSetLibErrorCode(asc_dvc, + ASCQ_ERR_SG_Q_LINKS); + scsiq->d3.done_stat = QD_WITH_ERROR; + scsiq->d3.host_stat = + QHSTA_D_QDONE_SG_LIST_CORRUPTED; + goto FATAL_ERR_QDONE; + } + AscWriteLramByte(iop_base, + (ushort)(sg_q_addr + (ushort) + ASC_SCSIQ_B_STATUS), + QS_FREE); + } + n_q_used = sg_queue_cnt + 1; + AscPutVarDoneQTail(iop_base, sg_list_qp); + } + if (asc_dvc->queue_full_or_busy & target_id) { + cur_target_qng = AscReadLramByte(iop_base, + (ushort)((ushort) + ASC_QADR_BEG + + (ushort) + scsiq->d2. + target_ix)); + if (cur_target_qng < asc_dvc->max_dvc_qng[tid_no]) { + scsi_busy = AscReadLramByte(iop_base, (ushort) + ASCV_SCSIBUSY_B); + scsi_busy &= ~target_id; + AscWriteLramByte(iop_base, + (ushort)ASCV_SCSIBUSY_B, + scsi_busy); + asc_dvc->queue_full_or_busy &= ~target_id; + } + } + if (asc_dvc->cur_total_qng >= n_q_used) { + asc_dvc->cur_total_qng -= n_q_used; + if (asc_dvc->cur_dvc_qng[tid_no] != 0) { + asc_dvc->cur_dvc_qng[tid_no]--; + } + } else { + AscSetLibErrorCode(asc_dvc, ASCQ_ERR_CUR_QNG); + scsiq->d3.done_stat = QD_WITH_ERROR; + goto FATAL_ERR_QDONE; + } + if ((scsiq->d2.srb_ptr == 0UL) || + ((scsiq->q_status & QS_ABORTED) != 0)) { + return (0x11); + } else if (scsiq->q_status == QS_DONE) { + false_overrun = FALSE; + if (scsiq->extra_bytes != 0) { + scsiq->remain_bytes += + (ADV_DCNT)scsiq->extra_bytes; + } + if (scsiq->d3.done_stat == QD_WITH_ERROR) { + if (scsiq->d3.host_stat == + QHSTA_M_DATA_OVER_RUN) { + if ((scsiq-> + cntl & (QC_DATA_IN | QC_DATA_OUT)) + == 0) { + scsiq->d3.done_stat = + QD_NO_ERROR; + scsiq->d3.host_stat = + QHSTA_NO_ERROR; + } else if (false_overrun) { + scsiq->d3.done_stat = + QD_NO_ERROR; + scsiq->d3.host_stat = + QHSTA_NO_ERROR; + } + } else if (scsiq->d3.host_stat == + QHSTA_M_HUNG_REQ_SCSI_BUS_RESET) { + AscStopChip(iop_base); + AscSetChipControl(iop_base, + (uchar)(CC_SCSI_RESET + | CC_HALT)); + udelay(60); + AscSetChipControl(iop_base, CC_HALT); + AscSetChipStatus(iop_base, + CIW_CLR_SCSI_RESET_INT); + AscSetChipStatus(iop_base, 0); + AscSetChipControl(iop_base, 0); + } + } + if ((scsiq->cntl & QC_NO_CALLBACK) == 0) { + asc_isr_callback(asc_dvc, scsiq); + } else { + if ((AscReadLramByte(iop_base, + (ushort)(q_addr + (ushort) + ASC_SCSIQ_CDB_BEG)) + == START_STOP)) { + asc_dvc->unit_not_ready &= ~target_id; + if (scsiq->d3.done_stat != QD_NO_ERROR) { + asc_dvc->start_motor &= + ~target_id; + } + } + } + return (1); + } else { + AscSetLibErrorCode(asc_dvc, ASCQ_ERR_Q_STATUS); + FATAL_ERR_QDONE: + if ((scsiq->cntl & QC_NO_CALLBACK) == 0) { + asc_isr_callback(asc_dvc, scsiq); + } + return (0x80); + } + } + return (0); +} + +static int AscISR(ASC_DVC_VAR *asc_dvc) +{ + ASC_CS_TYPE chipstat; + PortAddr iop_base; + ushort saved_ram_addr; + uchar ctrl_reg; + uchar saved_ctrl_reg; + int int_pending; + int status; + uchar host_flag; + + iop_base = asc_dvc->iop_base; + int_pending = FALSE; + + if (AscIsIntPending(iop_base) == 0) + return int_pending; + + if ((asc_dvc->init_state & ASC_INIT_STATE_END_LOAD_MC) == 0) { + return ERR; + } + if (asc_dvc->in_critical_cnt != 0) { + AscSetLibErrorCode(asc_dvc, ASCQ_ERR_ISR_ON_CRITICAL); + return ERR; + } + if (asc_dvc->is_in_int) { + AscSetLibErrorCode(asc_dvc, ASCQ_ERR_ISR_RE_ENTRY); + return ERR; + } + asc_dvc->is_in_int = TRUE; + ctrl_reg = AscGetChipControl(iop_base); + saved_ctrl_reg = ctrl_reg & (~(CC_SCSI_RESET | CC_CHIP_RESET | + CC_SINGLE_STEP | CC_DIAG | CC_TEST)); + chipstat = AscGetChipStatus(iop_base); + if (chipstat & CSW_SCSI_RESET_LATCH) { + if (!(asc_dvc->bus_type & (ASC_IS_VL | ASC_IS_EISA))) { + int i = 10; + int_pending = TRUE; + asc_dvc->sdtr_done = 0; + saved_ctrl_reg &= (uchar)(~CC_HALT); + while ((AscGetChipStatus(iop_base) & + CSW_SCSI_RESET_ACTIVE) && (i-- > 0)) { + mdelay(100); + } + AscSetChipControl(iop_base, (CC_CHIP_RESET | CC_HALT)); + AscSetChipControl(iop_base, CC_HALT); + AscSetChipStatus(iop_base, CIW_CLR_SCSI_RESET_INT); + AscSetChipStatus(iop_base, 0); + chipstat = AscGetChipStatus(iop_base); + } + } + saved_ram_addr = AscGetChipLramAddr(iop_base); + host_flag = AscReadLramByte(iop_base, + ASCV_HOST_FLAG_B) & + (uchar)(~ASC_HOST_FLAG_IN_ISR); + AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, + (uchar)(host_flag | (uchar)ASC_HOST_FLAG_IN_ISR)); + if ((chipstat & CSW_INT_PENDING) || (int_pending)) { + AscAckInterrupt(iop_base); + int_pending = TRUE; + if ((chipstat & CSW_HALTED) && (ctrl_reg & CC_SINGLE_STEP)) { + if (AscIsrChipHalted(asc_dvc) == ERR) { + goto ISR_REPORT_QDONE_FATAL_ERROR; + } else { + saved_ctrl_reg &= (uchar)(~CC_HALT); + } + } else { + ISR_REPORT_QDONE_FATAL_ERROR: + if ((asc_dvc->dvc_cntl & ASC_CNTL_INT_MULTI_Q) != 0) { + while (((status = + AscIsrQDone(asc_dvc)) & 0x01) != 0) { + } + } else { + do { + if ((status = + AscIsrQDone(asc_dvc)) == 1) { + break; + } + } while (status == 0x11); + } + if ((status & 0x80) != 0) + int_pending = ERR; + } + } + AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, host_flag); + AscSetChipLramAddr(iop_base, saved_ram_addr); + AscSetChipControl(iop_base, saved_ctrl_reg); + asc_dvc->is_in_int = FALSE; + return int_pending; +} + +/* + * advansys_reset() + * + * Reset the bus associated with the command 'scp'. + * + * This function runs its own thread. Interrupts must be blocked but + * sleeping is allowed and no locking other than for host structures is + * required. Returns SUCCESS or FAILED. + */ +static int advansys_reset(struct scsi_cmnd *scp) +{ + struct Scsi_Host *shost; + asc_board_t *boardp; + ASC_DVC_VAR *asc_dvc_varp; + ADV_DVC_VAR *adv_dvc_varp; + ulong flags; + int status; + int ret = SUCCESS; + + ASC_DBG1(1, "advansys_reset: 0x%lx\n", (ulong)scp); + +#ifdef ADVANSYS_STATS + if (scp->device->host != NULL) { + ASC_STATS(scp->device->host, reset); + } +#endif /* ADVANSYS_STATS */ + + if ((shost = scp->device->host) == NULL) { + scp->result = HOST_BYTE(DID_ERROR); + return FAILED; + } + + boardp = ASC_BOARDP(shost); + + ASC_PRINT1("advansys_reset: board %d: SCSI bus reset started...\n", + boardp->id); + /* + * Check for re-entrancy. + */ + spin_lock_irqsave(&boardp->lock, flags); + if (boardp->flags & ASC_HOST_IN_RESET) { + spin_unlock_irqrestore(&boardp->lock, flags); + return FAILED; + } + boardp->flags |= ASC_HOST_IN_RESET; + spin_unlock_irqrestore(&boardp->lock, flags); + + if (ASC_NARROW_BOARD(boardp)) { + /* + * Narrow Board + */ + asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; + + /* + * Reset the chip and SCSI bus. + */ + ASC_DBG(1, "advansys_reset: before AscInitAsc1000Driver()\n"); + status = AscInitAsc1000Driver(asc_dvc_varp); + + /* Refer to ASC_IERR_* defintions for meaning of 'err_code'. */ + if (asc_dvc_varp->err_code) { + ASC_PRINT2("advansys_reset: board %d: SCSI bus reset " + "error: 0x%x\n", boardp->id, + asc_dvc_varp->err_code); + ret = FAILED; + } else if (status) { + ASC_PRINT2("advansys_reset: board %d: SCSI bus reset " + "warning: 0x%x\n", boardp->id, status); + } else { + ASC_PRINT1("advansys_reset: board %d: SCSI bus reset " + "successful.\n", boardp->id); + } + + ASC_DBG(1, "advansys_reset: after AscInitAsc1000Driver()\n"); + spin_lock_irqsave(&boardp->lock, flags); + + } else { + /* + * Wide Board + * + * If the suggest reset bus flags are set, then reset the bus. + * Otherwise only reset the device. + */ + adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; + + /* + * Reset the target's SCSI bus. + */ + ASC_DBG(1, "advansys_reset: before AdvResetChipAndSB()\n"); + switch (AdvResetChipAndSB(adv_dvc_varp)) { + case ASC_TRUE: + ASC_PRINT1("advansys_reset: board %d: SCSI bus reset " + "successful.\n", boardp->id); + break; + case ASC_FALSE: + default: + ASC_PRINT1("advansys_reset: board %d: SCSI bus reset " + "error.\n", boardp->id); + ret = FAILED; + break; + } + spin_lock_irqsave(&boardp->lock, flags); + AdvISR(adv_dvc_varp); + } + /* Board lock is held. */ + + /* Save the time of the most recently completed reset. */ + boardp->last_reset = jiffies; + + /* Clear reset flag. */ + boardp->flags &= ~ASC_HOST_IN_RESET; + spin_unlock_irqrestore(&boardp->lock, flags); + + ASC_DBG1(1, "advansys_reset: ret %d\n", ret); + + return ret; +} + +/* + * advansys_biosparam() + * + * Translate disk drive geometry if the "BIOS greater than 1 GB" + * support is enabled for a drive. + * + * ip (information pointer) is an int array with the following definition: + * ip[0]: heads + * ip[1]: sectors + * ip[2]: cylinders + */ +static int +advansys_biosparam(struct scsi_device *sdev, struct block_device *bdev, + sector_t capacity, int ip[]) +{ + asc_board_t *boardp; + + ASC_DBG(1, "advansys_biosparam: begin\n"); + ASC_STATS(sdev->host, biosparam); + boardp = ASC_BOARDP(sdev->host); + if (ASC_NARROW_BOARD(boardp)) { + if ((boardp->dvc_var.asc_dvc_var.dvc_cntl & + ASC_CNTL_BIOS_GT_1GB) && capacity > 0x200000) { + ip[0] = 255; + ip[1] = 63; + } else { + ip[0] = 64; + ip[1] = 32; + } + } else { + if ((boardp->dvc_var.adv_dvc_var.bios_ctrl & + BIOS_CTRL_EXTENDED_XLAT) && capacity > 0x200000) { + ip[0] = 255; + ip[1] = 63; + } else { + ip[0] = 64; + ip[1] = 32; + } + } + ip[2] = (unsigned long)capacity / (ip[0] * ip[1]); + ASC_DBG(1, "advansys_biosparam: end\n"); + return 0; +} + +/* + * First-level interrupt handler. + * + * 'dev_id' is a pointer to the interrupting adapter's Scsi_Host. + */ +static irqreturn_t advansys_interrupt(int irq, void *dev_id) +{ + unsigned long flags; + struct Scsi_Host *shost = dev_id; + asc_board_t *boardp = ASC_BOARDP(shost); + irqreturn_t result = IRQ_NONE; + + ASC_DBG1(2, "advansys_interrupt: boardp 0x%p\n", boardp); + spin_lock_irqsave(&boardp->lock, flags); + if (ASC_NARROW_BOARD(boardp)) { + if (AscIsIntPending(shost->io_port)) { + result = IRQ_HANDLED; + ASC_STATS(shost, interrupt); + ASC_DBG(1, "advansys_interrupt: before AscISR()\n"); + AscISR(&boardp->dvc_var.asc_dvc_var); + } + } else { + ASC_DBG(1, "advansys_interrupt: before AdvISR()\n"); + if (AdvISR(&boardp->dvc_var.adv_dvc_var)) { + result = IRQ_HANDLED; + ASC_STATS(shost, interrupt); + } + } + spin_unlock_irqrestore(&boardp->lock, flags); + + ASC_DBG(1, "advansys_interrupt: end\n"); + return result; +} + +static int AscHostReqRiscHalt(PortAddr iop_base) +{ + int count = 0; + int sta = 0; + uchar saved_stop_code; + + if (AscIsChipHalted(iop_base)) + return (1); + saved_stop_code = AscReadLramByte(iop_base, ASCV_STOP_CODE_B); + AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, + ASC_STOP_HOST_REQ_RISC_HALT | ASC_STOP_REQ_RISC_STOP); + do { + if (AscIsChipHalted(iop_base)) { + sta = 1; + break; + } + mdelay(100); + } while (count++ < 20); + AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, saved_stop_code); + return (sta); +} + +static int +AscSetRunChipSynRegAtID(PortAddr iop_base, uchar tid_no, uchar sdtr_data) +{ + int sta = FALSE; + + if (AscHostReqRiscHalt(iop_base)) { + sta = AscSetChipSynRegAtID(iop_base, tid_no, sdtr_data); + AscStartChip(iop_base); + } + return sta; +} + +static void AscAsyncFix(ASC_DVC_VAR *asc_dvc, struct scsi_device *sdev) +{ + char type = sdev->type; + ASC_SCSI_BIT_ID_TYPE tid_bits = 1 << sdev->id; + + if (!(asc_dvc->bug_fix_cntl & ASC_BUG_FIX_ASYN_USE_SYN)) + return; + if (asc_dvc->init_sdtr & tid_bits) + return; + + if ((type == TYPE_ROM) && (strncmp(sdev->vendor, "HP ", 3) == 0)) + asc_dvc->pci_fix_asyn_xfer_always |= tid_bits; + + asc_dvc->pci_fix_asyn_xfer |= tid_bits; + if ((type == TYPE_PROCESSOR) || (type == TYPE_SCANNER) || + (type == TYPE_ROM) || (type == TYPE_TAPE)) + asc_dvc->pci_fix_asyn_xfer &= ~tid_bits; + + if (asc_dvc->pci_fix_asyn_xfer & tid_bits) + AscSetRunChipSynRegAtID(asc_dvc->iop_base, sdev->id, + ASYN_SDTR_DATA_FIX_PCI_REV_AB); +} + +static void +advansys_narrow_slave_configure(struct scsi_device *sdev, ASC_DVC_VAR *asc_dvc) +{ + ASC_SCSI_BIT_ID_TYPE tid_bit = 1 << sdev->id; + ASC_SCSI_BIT_ID_TYPE orig_use_tagged_qng = asc_dvc->use_tagged_qng; + + if (sdev->lun == 0) { + ASC_SCSI_BIT_ID_TYPE orig_init_sdtr = asc_dvc->init_sdtr; + if ((asc_dvc->cfg->sdtr_enable & tid_bit) && sdev->sdtr) { + asc_dvc->init_sdtr |= tid_bit; + } else { + asc_dvc->init_sdtr &= ~tid_bit; + } + + if (orig_init_sdtr != asc_dvc->init_sdtr) + AscAsyncFix(asc_dvc, sdev); + } + + if (sdev->tagged_supported) { + if (asc_dvc->cfg->cmd_qng_enabled & tid_bit) { + if (sdev->lun == 0) { + asc_dvc->cfg->can_tagged_qng |= tid_bit; + asc_dvc->use_tagged_qng |= tid_bit; + } + scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, + asc_dvc->max_dvc_qng[sdev->id]); + } + } else { + if (sdev->lun == 0) { + asc_dvc->cfg->can_tagged_qng &= ~tid_bit; + asc_dvc->use_tagged_qng &= ~tid_bit; + } + scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); + } + + if ((sdev->lun == 0) && + (orig_use_tagged_qng != asc_dvc->use_tagged_qng)) { + AscWriteLramByte(asc_dvc->iop_base, ASCV_DISC_ENABLE_B, + asc_dvc->cfg->disc_enable); + AscWriteLramByte(asc_dvc->iop_base, ASCV_USE_TAGGED_QNG_B, + asc_dvc->use_tagged_qng); + AscWriteLramByte(asc_dvc->iop_base, ASCV_CAN_TAGGED_QNG_B, + asc_dvc->cfg->can_tagged_qng); + + asc_dvc->max_dvc_qng[sdev->id] = + asc_dvc->cfg->max_tag_qng[sdev->id]; + AscWriteLramByte(asc_dvc->iop_base, + (ushort)(ASCV_MAX_DVC_QNG_BEG + sdev->id), + asc_dvc->max_dvc_qng[sdev->id]); + } +} + +/* + * Wide Transfers + * + * If the EEPROM enabled WDTR for the device and the device supports wide + * bus (16 bit) transfers, then turn on the device's 'wdtr_able' bit and + * write the new value to the microcode. + */ +static void +advansys_wide_enable_wdtr(AdvPortAddr iop_base, unsigned short tidmask) +{ + unsigned short cfg_word; + AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, cfg_word); + if ((cfg_word & tidmask) != 0) + return; + + cfg_word |= tidmask; + AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, cfg_word); + + /* + * Clear the microcode SDTR and WDTR negotiation done indicators for + * the target to cause it to negotiate with the new setting set above. + * WDTR when accepted causes the target to enter asynchronous mode, so + * SDTR must be negotiated. + */ + AdvReadWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); + cfg_word &= ~tidmask; + AdvWriteWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); + AdvReadWordLram(iop_base, ASC_MC_WDTR_DONE, cfg_word); + cfg_word &= ~tidmask; + AdvWriteWordLram(iop_base, ASC_MC_WDTR_DONE, cfg_word); +} + +/* + * Synchronous Transfers + * + * If the EEPROM enabled SDTR for the device and the device + * supports synchronous transfers, then turn on the device's + * 'sdtr_able' bit. Write the new value to the microcode. + */ +static void +advansys_wide_enable_sdtr(AdvPortAddr iop_base, unsigned short tidmask) +{ + unsigned short cfg_word; + AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, cfg_word); + if ((cfg_word & tidmask) != 0) + return; + + cfg_word |= tidmask; + AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, cfg_word); + + /* + * Clear the microcode "SDTR negotiation" done indicator for the + * target to cause it to negotiate with the new setting set above. + */ + AdvReadWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); + cfg_word &= ~tidmask; + AdvWriteWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); +} + +/* + * PPR (Parallel Protocol Request) Capable + * + * If the device supports DT mode, then it must be PPR capable. + * The PPR message will be used in place of the SDTR and WDTR + * messages to negotiate synchronous speed and offset, transfer + * width, and protocol options. + */ +static void advansys_wide_enable_ppr(ADV_DVC_VAR *adv_dvc, + AdvPortAddr iop_base, unsigned short tidmask) +{ + AdvReadWordLram(iop_base, ASC_MC_PPR_ABLE, adv_dvc->ppr_able); + adv_dvc->ppr_able |= tidmask; + AdvWriteWordLram(iop_base, ASC_MC_PPR_ABLE, adv_dvc->ppr_able); +} + +static void +advansys_wide_slave_configure(struct scsi_device *sdev, ADV_DVC_VAR *adv_dvc) +{ + AdvPortAddr iop_base = adv_dvc->iop_base; + unsigned short tidmask = 1 << sdev->id; + + if (sdev->lun == 0) { + /* + * Handle WDTR, SDTR, and Tag Queuing. If the feature + * is enabled in the EEPROM and the device supports the + * feature, then enable it in the microcode. + */ + + if ((adv_dvc->wdtr_able & tidmask) && sdev->wdtr) + advansys_wide_enable_wdtr(iop_base, tidmask); + if ((adv_dvc->sdtr_able & tidmask) && sdev->sdtr) + advansys_wide_enable_sdtr(iop_base, tidmask); + if (adv_dvc->chip_type == ADV_CHIP_ASC38C1600 && sdev->ppr) + advansys_wide_enable_ppr(adv_dvc, iop_base, tidmask); + + /* + * Tag Queuing is disabled for the BIOS which runs in polled + * mode and would see no benefit from Tag Queuing. Also by + * disabling Tag Queuing in the BIOS devices with Tag Queuing + * bugs will at least work with the BIOS. + */ + if ((adv_dvc->tagqng_able & tidmask) && + sdev->tagged_supported) { + unsigned short cfg_word; + AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, cfg_word); + cfg_word |= tidmask; + AdvWriteWordLram(iop_base, ASC_MC_TAGQNG_ABLE, + cfg_word); + AdvWriteByteLram(iop_base, + ASC_MC_NUMBER_OF_MAX_CMD + sdev->id, + adv_dvc->max_dvc_qng); + } + } + + if ((adv_dvc->tagqng_able & tidmask) && sdev->tagged_supported) { + scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, + adv_dvc->max_dvc_qng); + } else { + scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); + } +} + +/* + * Set the number of commands to queue per device for the + * specified host adapter. + */ +static int advansys_slave_configure(struct scsi_device *sdev) +{ + asc_board_t *boardp = ASC_BOARDP(sdev->host); + boardp->flags |= ASC_SELECT_QUEUE_DEPTHS; + + /* + * Save a pointer to the sdev and set its initial/maximum + * queue depth. Only save the pointer for a lun0 dev though. + */ + if (sdev->lun == 0) + boardp->device[sdev->id] = sdev; + + if (ASC_NARROW_BOARD(boardp)) + advansys_narrow_slave_configure(sdev, + &boardp->dvc_var.asc_dvc_var); + else + advansys_wide_slave_configure(sdev, + &boardp->dvc_var.adv_dvc_var); + + return 0; +} + +/* + * Build a request structure for the Asc Library (Narrow Board). + * + * The global structures 'asc_scsi_q' and 'asc_sg_head' are + * used to build the request. + * + * If an error occurs, then return ASC_ERROR. + */ +static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp) +{ + /* + * Mutually exclusive access is required to 'asc_scsi_q' and + * 'asc_sg_head' until after the request is started. + */ + memset(&asc_scsi_q, 0, sizeof(ASC_SCSI_Q)); + + /* + * Point the ASC_SCSI_Q to the 'struct scsi_cmnd'. + */ + asc_scsi_q.q2.srb_ptr = ASC_VADDR_TO_U32(scp); + + /* + * Build the ASC_SCSI_Q request. + */ + asc_scsi_q.cdbptr = &scp->cmnd[0]; + asc_scsi_q.q2.cdb_len = scp->cmd_len; + asc_scsi_q.q1.target_id = ASC_TID_TO_TARGET_ID(scp->device->id); + asc_scsi_q.q1.target_lun = scp->device->lun; + asc_scsi_q.q2.target_ix = + ASC_TIDLUN_TO_IX(scp->device->id, scp->device->lun); + asc_scsi_q.q1.sense_addr = + cpu_to_le32(virt_to_bus(&scp->sense_buffer[0])); + asc_scsi_q.q1.sense_len = sizeof(scp->sense_buffer); + + /* + * If there are any outstanding requests for the current target, + * then every 255th request send an ORDERED request. This heuristic + * tries to retain the benefit of request sorting while preventing + * request starvation. 255 is the max number of tags or pending commands + * a device may have outstanding. + * + * The request count is incremented below for every successfully + * started request. + * + */ + if ((boardp->dvc_var.asc_dvc_var.cur_dvc_qng[scp->device->id] > 0) && + (boardp->reqcnt[scp->device->id] % 255) == 0) { + asc_scsi_q.q2.tag_code = MSG_ORDERED_TAG; + } else { + asc_scsi_q.q2.tag_code = MSG_SIMPLE_TAG; + } + + /* + * Build ASC_SCSI_Q for a contiguous buffer or a scatter-gather + * buffer command. + */ + if (scp->use_sg == 0) { + /* + * CDB request of single contiguous buffer. + */ + ASC_STATS(scp->device->host, cont_cnt); + scp->SCp.dma_handle = scp->request_bufflen ? + dma_map_single(boardp->dev, scp->request_buffer, + scp->request_bufflen, + scp->sc_data_direction) : 0; + asc_scsi_q.q1.data_addr = cpu_to_le32(scp->SCp.dma_handle); + asc_scsi_q.q1.data_cnt = cpu_to_le32(scp->request_bufflen); + ASC_STATS_ADD(scp->device->host, cont_xfer, + ASC_CEILING(scp->request_bufflen, 512)); + asc_scsi_q.q1.sg_queue_cnt = 0; + asc_scsi_q.sg_head = NULL; + } else { + /* + * CDB scatter-gather request list. + */ + int sgcnt; + int use_sg; + struct scatterlist *slp; + + slp = (struct scatterlist *)scp->request_buffer; + use_sg = dma_map_sg(boardp->dev, slp, scp->use_sg, + scp->sc_data_direction); + + if (use_sg > scp->device->host->sg_tablesize) { + ASC_PRINT3("asc_build_req: board %d: use_sg %d > " + "sg_tablesize %d\n", boardp->id, use_sg, + scp->device->host->sg_tablesize); + dma_unmap_sg(boardp->dev, slp, scp->use_sg, + scp->sc_data_direction); + scp->result = HOST_BYTE(DID_ERROR); + return ASC_ERROR; + } + + ASC_STATS(scp->device->host, sg_cnt); + + /* + * Use global ASC_SG_HEAD structure and set the ASC_SCSI_Q + * structure to point to it. + */ + memset(&asc_sg_head, 0, sizeof(ASC_SG_HEAD)); + + asc_scsi_q.q1.cntl |= QC_SG_HEAD; + asc_scsi_q.sg_head = &asc_sg_head; + asc_scsi_q.q1.data_cnt = 0; + asc_scsi_q.q1.data_addr = 0; + /* This is a byte value, otherwise it would need to be swapped. */ + asc_sg_head.entry_cnt = asc_scsi_q.q1.sg_queue_cnt = use_sg; + ASC_STATS_ADD(scp->device->host, sg_elem, + asc_sg_head.entry_cnt); + + /* + * Convert scatter-gather list into ASC_SG_HEAD list. + */ + for (sgcnt = 0; sgcnt < use_sg; sgcnt++, slp++) { + asc_sg_head.sg_list[sgcnt].addr = + cpu_to_le32(sg_dma_address(slp)); + asc_sg_head.sg_list[sgcnt].bytes = + cpu_to_le32(sg_dma_len(slp)); + ASC_STATS_ADD(scp->device->host, sg_xfer, + ASC_CEILING(sg_dma_len(slp), 512)); + } + } + + ASC_DBG_PRT_ASC_SCSI_Q(2, &asc_scsi_q); + ASC_DBG_PRT_CDB(1, scp->cmnd, scp->cmd_len); + + return ASC_NOERROR; +} + +/* + * Build scatter-gather list for Adv Library (Wide Board). + * + * Additional ADV_SG_BLOCK structures will need to be allocated + * if the total number of scatter-gather elements exceeds + * NO_OF_SG_PER_BLOCK (15). The ADV_SG_BLOCK structures are + * assumed to be physically contiguous. + * + * Return: + * ADV_SUCCESS(1) - SG List successfully created + * ADV_ERROR(-1) - SG List creation failed + */ +static int +adv_get_sglist(asc_board_t *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, + int use_sg) +{ + adv_sgblk_t *sgblkp; + ADV_SCSI_REQ_Q *scsiqp; + struct scatterlist *slp; + int sg_elem_cnt; + ADV_SG_BLOCK *sg_block, *prev_sg_block; + ADV_PADDR sg_block_paddr; + int i; + + scsiqp = (ADV_SCSI_REQ_Q *)ADV_32BALIGN(&reqp->scsi_req_q); + slp = (struct scatterlist *)scp->request_buffer; + sg_elem_cnt = use_sg; + prev_sg_block = NULL; + reqp->sgblkp = NULL; + + for (;;) { + /* + * Allocate a 'adv_sgblk_t' structure from the board free + * list. One 'adv_sgblk_t' structure holds NO_OF_SG_PER_BLOCK + * (15) scatter-gather elements. + */ + if ((sgblkp = boardp->adv_sgblkp) == NULL) { + ASC_DBG(1, "adv_get_sglist: no free adv_sgblk_t\n"); + ASC_STATS(scp->device->host, adv_build_nosg); + + /* + * Allocation failed. Free 'adv_sgblk_t' structures + * already allocated for the request. + */ + while ((sgblkp = reqp->sgblkp) != NULL) { + /* Remove 'sgblkp' from the request list. */ + reqp->sgblkp = sgblkp->next_sgblkp; + + /* Add 'sgblkp' to the board free list. */ + sgblkp->next_sgblkp = boardp->adv_sgblkp; + boardp->adv_sgblkp = sgblkp; + } + return ASC_BUSY; + } + + /* Complete 'adv_sgblk_t' board allocation. */ + boardp->adv_sgblkp = sgblkp->next_sgblkp; + sgblkp->next_sgblkp = NULL; + + /* + * Get 8 byte aligned virtual and physical addresses + * for the allocated ADV_SG_BLOCK structure. + */ + sg_block = (ADV_SG_BLOCK *)ADV_8BALIGN(&sgblkp->sg_block); + sg_block_paddr = virt_to_bus(sg_block); + + /* + * Check if this is the first 'adv_sgblk_t' for the + * request. + */ + if (reqp->sgblkp == NULL) { + /* Request's first scatter-gather block. */ + reqp->sgblkp = sgblkp; + + /* + * Set ADV_SCSI_REQ_T ADV_SG_BLOCK virtual and physical + * address pointers. + */ + scsiqp->sg_list_ptr = sg_block; + scsiqp->sg_real_addr = cpu_to_le32(sg_block_paddr); + } else { + /* Request's second or later scatter-gather block. */ + sgblkp->next_sgblkp = reqp->sgblkp; + reqp->sgblkp = sgblkp; + + /* + * Point the previous ADV_SG_BLOCK structure to + * the newly allocated ADV_SG_BLOCK structure. + */ + prev_sg_block->sg_ptr = cpu_to_le32(sg_block_paddr); + } + + for (i = 0; i < NO_OF_SG_PER_BLOCK; i++) { + sg_block->sg_list[i].sg_addr = + cpu_to_le32(sg_dma_address(slp)); + sg_block->sg_list[i].sg_count = + cpu_to_le32(sg_dma_len(slp)); + ASC_STATS_ADD(scp->device->host, sg_xfer, + ASC_CEILING(sg_dma_len(slp), 512)); + + if (--sg_elem_cnt == 0) { /* Last ADV_SG_BLOCK and scatter-gather entry. */ + sg_block->sg_cnt = i + 1; + sg_block->sg_ptr = 0L; /* Last ADV_SG_BLOCK in list. */ + return ADV_SUCCESS; + } + slp++; + } + sg_block->sg_cnt = NO_OF_SG_PER_BLOCK; + prev_sg_block = sg_block; + } +} + +/* + * Build a request structure for the Adv Library (Wide Board). + * + * If an adv_req_t can not be allocated to issue the request, + * then return ASC_BUSY. If an error occurs, then return ASC_ERROR. + * + * Multi-byte fields in the ASC_SCSI_REQ_Q that are used by the + * microcode for DMA addresses or math operations are byte swapped + * to little-endian order. + */ +static int +adv_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, + ADV_SCSI_REQ_Q **adv_scsiqpp) +{ + adv_req_t *reqp; + ADV_SCSI_REQ_Q *scsiqp; + int i; + int ret; + + /* + * Allocate an adv_req_t structure from the board to execute + * the command. + */ + if (boardp->adv_reqp == NULL) { + ASC_DBG(1, "adv_build_req: no free adv_req_t\n"); + ASC_STATS(scp->device->host, adv_build_noreq); + return ASC_BUSY; + } else { + reqp = boardp->adv_reqp; + boardp->adv_reqp = reqp->next_reqp; + reqp->next_reqp = NULL; + } + + /* + * Get 32-byte aligned ADV_SCSI_REQ_Q and ADV_SG_BLOCK pointers. + */ + scsiqp = (ADV_SCSI_REQ_Q *)ADV_32BALIGN(&reqp->scsi_req_q); + + /* + * Initialize the structure. + */ + scsiqp->cntl = scsiqp->scsi_cntl = scsiqp->done_status = 0; + + /* + * Set the ADV_SCSI_REQ_Q 'srb_ptr' to point to the adv_req_t structure. + */ + scsiqp->srb_ptr = ASC_VADDR_TO_U32(reqp); + + /* + * Set the adv_req_t 'cmndp' to point to the struct scsi_cmnd structure. + */ + reqp->cmndp = scp; + + /* + * Build the ADV_SCSI_REQ_Q request. + */ + + /* Set CDB length and copy it to the request structure. */ + scsiqp->cdb_len = scp->cmd_len; + /* Copy first 12 CDB bytes to cdb[]. */ + for (i = 0; i < scp->cmd_len && i < 12; i++) { + scsiqp->cdb[i] = scp->cmnd[i]; + } + /* Copy last 4 CDB bytes, if present, to cdb16[]. */ + for (; i < scp->cmd_len; i++) { + scsiqp->cdb16[i - 12] = scp->cmnd[i]; + } + + scsiqp->target_id = scp->device->id; + scsiqp->target_lun = scp->device->lun; + + scsiqp->sense_addr = cpu_to_le32(virt_to_bus(&scp->sense_buffer[0])); + scsiqp->sense_len = sizeof(scp->sense_buffer); + + /* + * Build ADV_SCSI_REQ_Q for a contiguous buffer or a scatter-gather + * buffer command. + */ + + scsiqp->data_cnt = cpu_to_le32(scp->request_bufflen); + scsiqp->vdata_addr = scp->request_buffer; + scsiqp->data_addr = cpu_to_le32(virt_to_bus(scp->request_buffer)); + + if (scp->use_sg == 0) { + /* + * CDB request of single contiguous buffer. + */ + reqp->sgblkp = NULL; + scsiqp->data_cnt = cpu_to_le32(scp->request_bufflen); + if (scp->request_bufflen) { + scsiqp->vdata_addr = scp->request_buffer; + scp->SCp.dma_handle = + dma_map_single(boardp->dev, scp->request_buffer, + scp->request_bufflen, + scp->sc_data_direction); + } else { + scsiqp->vdata_addr = NULL; + scp->SCp.dma_handle = 0; + } + scsiqp->data_addr = cpu_to_le32(scp->SCp.dma_handle); + scsiqp->sg_list_ptr = NULL; + scsiqp->sg_real_addr = 0; + ASC_STATS(scp->device->host, cont_cnt); + ASC_STATS_ADD(scp->device->host, cont_xfer, + ASC_CEILING(scp->request_bufflen, 512)); + } else { + /* + * CDB scatter-gather request list. + */ + struct scatterlist *slp; + int use_sg; + + slp = (struct scatterlist *)scp->request_buffer; + use_sg = dma_map_sg(boardp->dev, slp, scp->use_sg, + scp->sc_data_direction); + + if (use_sg > ADV_MAX_SG_LIST) { + ASC_PRINT3("adv_build_req: board %d: use_sg %d > " + "ADV_MAX_SG_LIST %d\n", boardp->id, use_sg, + scp->device->host->sg_tablesize); + dma_unmap_sg(boardp->dev, slp, scp->use_sg, + scp->sc_data_direction); + scp->result = HOST_BYTE(DID_ERROR); + + /* + * Free the 'adv_req_t' structure by adding it back + * to the board free list. + */ + reqp->next_reqp = boardp->adv_reqp; + boardp->adv_reqp = reqp; + + return ASC_ERROR; + } + + ret = adv_get_sglist(boardp, reqp, scp, use_sg); + if (ret != ADV_SUCCESS) { + /* + * Free the adv_req_t structure by adding it back to + * the board free list. + */ + reqp->next_reqp = boardp->adv_reqp; + boardp->adv_reqp = reqp; + + return ret; + } + + ASC_STATS(scp->device->host, sg_cnt); + ASC_STATS_ADD(scp->device->host, sg_elem, use_sg); + } + + ASC_DBG_PRT_ADV_SCSI_REQ_Q(2, scsiqp); + ASC_DBG_PRT_CDB(1, scp->cmnd, scp->cmd_len); + + *adv_scsiqpp = scsiqp; + + return ASC_NOERROR; +} + +static int AscSgListToQueue(int sg_list) +{ + int n_sg_list_qs; + + n_sg_list_qs = ((sg_list - 1) / ASC_SG_LIST_PER_Q); + if (((sg_list - 1) % ASC_SG_LIST_PER_Q) != 0) + n_sg_list_qs++; + return n_sg_list_qs + 1; +} + +static uint +AscGetNumOfFreeQueue(ASC_DVC_VAR *asc_dvc, uchar target_ix, uchar n_qs) +{ + uint cur_used_qs; + uint cur_free_qs; + ASC_SCSI_BIT_ID_TYPE target_id; + uchar tid_no; + + target_id = ASC_TIX_TO_TARGET_ID(target_ix); + tid_no = ASC_TIX_TO_TID(target_ix); + if ((asc_dvc->unit_not_ready & target_id) || + (asc_dvc->queue_full_or_busy & target_id)) { + return 0; + } + if (n_qs == 1) { + cur_used_qs = (uint) asc_dvc->cur_total_qng + + (uint) asc_dvc->last_q_shortage + (uint) ASC_MIN_FREE_Q; + } else { + cur_used_qs = (uint) asc_dvc->cur_total_qng + + (uint) ASC_MIN_FREE_Q; + } + if ((uint) (cur_used_qs + n_qs) <= (uint) asc_dvc->max_total_qng) { + cur_free_qs = (uint) asc_dvc->max_total_qng - cur_used_qs; + if (asc_dvc->cur_dvc_qng[tid_no] >= + asc_dvc->max_dvc_qng[tid_no]) { + return 0; + } + return cur_free_qs; + } + if (n_qs > 1) { + if ((n_qs > asc_dvc->last_q_shortage) + && (n_qs <= (asc_dvc->max_total_qng - ASC_MIN_FREE_Q))) { + asc_dvc->last_q_shortage = n_qs; + } + } + return 0; +} + +static uchar AscAllocFreeQueue(PortAddr iop_base, uchar free_q_head) +{ + ushort q_addr; + uchar next_qp; + uchar q_status; + + q_addr = ASC_QNO_TO_QADDR(free_q_head); + q_status = (uchar)AscReadLramByte(iop_base, + (ushort)(q_addr + + ASC_SCSIQ_B_STATUS)); + next_qp = AscReadLramByte(iop_base, (ushort)(q_addr + ASC_SCSIQ_B_FWD)); + if (((q_status & QS_READY) == 0) && (next_qp != ASC_QLINK_END)) + return next_qp; + return ASC_QLINK_END; +} + +static uchar +AscAllocMultipleFreeQueue(PortAddr iop_base, uchar free_q_head, uchar n_free_q) +{ + uchar i; + + for (i = 0; i < n_free_q; i++) { + free_q_head = AscAllocFreeQueue(iop_base, free_q_head); + if (free_q_head == ASC_QLINK_END) + break; + } + return free_q_head; +} + +/* + * void + * DvcPutScsiQ(PortAddr iop_base, ushort s_addr, uchar *outbuf, int words) + * + * Calling/Exit State: + * none + * + * Description: + * Output an ASC_SCSI_Q structure to the chip + */ +static void +DvcPutScsiQ(PortAddr iop_base, ushort s_addr, uchar *outbuf, int words) +{ + int i; + + ASC_DBG_PRT_HEX(2, "DvcPutScsiQ", outbuf, 2 * words); + AscSetChipLramAddr(iop_base, s_addr); + for (i = 0; i < 2 * words; i += 2) { + if (i == 4 || i == 20) { + continue; + } + outpw(iop_base + IOP_RAM_DATA, + ((ushort)outbuf[i + 1] << 8) | outbuf[i]); + } +} + +static int AscPutReadyQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar q_no) +{ + ushort q_addr; + uchar tid_no; + uchar sdtr_data; + uchar syn_period_ix; + uchar syn_offset; + PortAddr iop_base; + + iop_base = asc_dvc->iop_base; + if (((asc_dvc->init_sdtr & scsiq->q1.target_id) != 0) && + ((asc_dvc->sdtr_done & scsiq->q1.target_id) == 0)) { + tid_no = ASC_TIX_TO_TID(scsiq->q2.target_ix); + sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no); + syn_period_ix = + (sdtr_data >> 4) & (asc_dvc->max_sdtr_index - 1); + syn_offset = sdtr_data & ASC_SYN_MAX_OFFSET; + AscMsgOutSDTR(asc_dvc, + asc_dvc->sdtr_period_tbl[syn_period_ix], + syn_offset); + scsiq->q1.cntl |= QC_MSG_OUT; + } + q_addr = ASC_QNO_TO_QADDR(q_no); + if ((scsiq->q1.target_id & asc_dvc->use_tagged_qng) == 0) { + scsiq->q2.tag_code &= ~MSG_SIMPLE_TAG; + } + scsiq->q1.status = QS_FREE; + AscMemWordCopyPtrToLram(iop_base, + q_addr + ASC_SCSIQ_CDB_BEG, + (uchar *)scsiq->cdbptr, scsiq->q2.cdb_len >> 1); + + DvcPutScsiQ(iop_base, + q_addr + ASC_SCSIQ_CPY_BEG, + (uchar *)&scsiq->q1.cntl, + ((sizeof(ASC_SCSIQ_1) + sizeof(ASC_SCSIQ_2)) / 2) - 1); + AscWriteLramWord(iop_base, + (ushort)(q_addr + (ushort)ASC_SCSIQ_B_STATUS), + (ushort)(((ushort)scsiq->q1. + q_no << 8) | (ushort)QS_READY)); + return 1; +} + +static int +AscPutReadySgListQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar q_no) +{ + int sta; + int i; + ASC_SG_HEAD *sg_head; + ASC_SG_LIST_Q scsi_sg_q; + ASC_DCNT saved_data_addr; + ASC_DCNT saved_data_cnt; + PortAddr iop_base; + ushort sg_list_dwords; + ushort sg_index; + ushort sg_entry_cnt; + ushort q_addr; + uchar next_qp; + + iop_base = asc_dvc->iop_base; + sg_head = scsiq->sg_head; + saved_data_addr = scsiq->q1.data_addr; + saved_data_cnt = scsiq->q1.data_cnt; + scsiq->q1.data_addr = (ASC_PADDR) sg_head->sg_list[0].addr; + scsiq->q1.data_cnt = (ASC_DCNT) sg_head->sg_list[0].bytes; +#if CC_VERY_LONG_SG_LIST + /* + * If sg_head->entry_cnt is greater than ASC_MAX_SG_LIST + * then not all SG elements will fit in the allocated queues. + * The rest of the SG elements will be copied when the RISC + * completes the SG elements that fit and halts. + */ + if (sg_head->entry_cnt > ASC_MAX_SG_LIST) { + /* + * Set sg_entry_cnt to be the number of SG elements that + * will fit in the allocated SG queues. It is minus 1, because + * the first SG element is handled above. ASC_MAX_SG_LIST is + * already inflated by 1 to account for this. For example it + * may be 50 which is 1 + 7 queues * 7 SG elements. + */ + sg_entry_cnt = ASC_MAX_SG_LIST - 1; + + /* + * Keep track of remaining number of SG elements that will + * need to be handled from a_isr.c. + */ + scsiq->remain_sg_entry_cnt = + sg_head->entry_cnt - ASC_MAX_SG_LIST; + } else { +#endif /* CC_VERY_LONG_SG_LIST */ + /* + * Set sg_entry_cnt to be the number of SG elements that + * will fit in the allocated SG queues. It is minus 1, because + * the first SG element is handled above. + */ + sg_entry_cnt = sg_head->entry_cnt - 1; +#if CC_VERY_LONG_SG_LIST + } +#endif /* CC_VERY_LONG_SG_LIST */ + if (sg_entry_cnt != 0) { + scsiq->q1.cntl |= QC_SG_HEAD; + q_addr = ASC_QNO_TO_QADDR(q_no); + sg_index = 1; + scsiq->q1.sg_queue_cnt = sg_head->queue_cnt; + scsi_sg_q.sg_head_qp = q_no; + scsi_sg_q.cntl = QCSG_SG_XFER_LIST; + for (i = 0; i < sg_head->queue_cnt; i++) { + scsi_sg_q.seq_no = i + 1; + if (sg_entry_cnt > ASC_SG_LIST_PER_Q) { + sg_list_dwords = (uchar)(ASC_SG_LIST_PER_Q * 2); + sg_entry_cnt -= ASC_SG_LIST_PER_Q; + if (i == 0) { + scsi_sg_q.sg_list_cnt = + ASC_SG_LIST_PER_Q; + scsi_sg_q.sg_cur_list_cnt = + ASC_SG_LIST_PER_Q; + } else { + scsi_sg_q.sg_list_cnt = + ASC_SG_LIST_PER_Q - 1; + scsi_sg_q.sg_cur_list_cnt = + ASC_SG_LIST_PER_Q - 1; + } + } else { +#if CC_VERY_LONG_SG_LIST + /* + * This is the last SG queue in the list of + * allocated SG queues. If there are more + * SG elements than will fit in the allocated + * queues, then set the QCSG_SG_XFER_MORE flag. + */ + if (sg_head->entry_cnt > ASC_MAX_SG_LIST) { + scsi_sg_q.cntl |= QCSG_SG_XFER_MORE; + } else { +#endif /* CC_VERY_LONG_SG_LIST */ + scsi_sg_q.cntl |= QCSG_SG_XFER_END; +#if CC_VERY_LONG_SG_LIST + } +#endif /* CC_VERY_LONG_SG_LIST */ + sg_list_dwords = sg_entry_cnt << 1; + if (i == 0) { + scsi_sg_q.sg_list_cnt = sg_entry_cnt; + scsi_sg_q.sg_cur_list_cnt = + sg_entry_cnt; + } else { + scsi_sg_q.sg_list_cnt = + sg_entry_cnt - 1; + scsi_sg_q.sg_cur_list_cnt = + sg_entry_cnt - 1; + } + sg_entry_cnt = 0; + } + next_qp = AscReadLramByte(iop_base, + (ushort)(q_addr + + ASC_SCSIQ_B_FWD)); + scsi_sg_q.q_no = next_qp; + q_addr = ASC_QNO_TO_QADDR(next_qp); + AscMemWordCopyPtrToLram(iop_base, + q_addr + ASC_SCSIQ_SGHD_CPY_BEG, + (uchar *)&scsi_sg_q, + sizeof(ASC_SG_LIST_Q) >> 1); + AscMemDWordCopyPtrToLram(iop_base, + q_addr + ASC_SGQ_LIST_BEG, + (uchar *)&sg_head-> + sg_list[sg_index], + sg_list_dwords); + sg_index += ASC_SG_LIST_PER_Q; + scsiq->next_sg_index = sg_index; + } + } else { + scsiq->q1.cntl &= ~QC_SG_HEAD; + } + sta = AscPutReadyQueue(asc_dvc, scsiq, q_no); + scsiq->q1.data_addr = saved_data_addr; + scsiq->q1.data_cnt = saved_data_cnt; + return (sta); +} + +static int +AscSendScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar n_q_required) +{ + PortAddr iop_base; + uchar free_q_head; + uchar next_qp; + uchar tid_no; + uchar target_ix; + int sta; + + iop_base = asc_dvc->iop_base; + target_ix = scsiq->q2.target_ix; + tid_no = ASC_TIX_TO_TID(target_ix); + sta = 0; + free_q_head = (uchar)AscGetVarFreeQHead(iop_base); + if (n_q_required > 1) { + next_qp = AscAllocMultipleFreeQueue(iop_base, free_q_head, + (uchar)n_q_required); + if (next_qp != ASC_QLINK_END) { + asc_dvc->last_q_shortage = 0; + scsiq->sg_head->queue_cnt = n_q_required - 1; + scsiq->q1.q_no = free_q_head; + sta = AscPutReadySgListQueue(asc_dvc, scsiq, + free_q_head); + } + } else if (n_q_required == 1) { + next_qp = AscAllocFreeQueue(iop_base, free_q_head); + if (next_qp != ASC_QLINK_END) { + scsiq->q1.q_no = free_q_head; + sta = AscPutReadyQueue(asc_dvc, scsiq, free_q_head); + } + } + if (sta == 1) { + AscPutVarFreeQHead(iop_base, next_qp); + asc_dvc->cur_total_qng += (uchar)(n_q_required); + asc_dvc->cur_dvc_qng[tid_no]++; + } + return sta; +} + +#define ASC_SYN_OFFSET_ONE_DISABLE_LIST 16 +static uchar _syn_offset_one_disable_cmd[ASC_SYN_OFFSET_ONE_DISABLE_LIST] = { + INQUIRY, + REQUEST_SENSE, + READ_CAPACITY, + READ_TOC, + MODE_SELECT, + MODE_SENSE, + MODE_SELECT_10, + MODE_SENSE_10, + 0xFF, + 0xFF, + 0xFF, + 0xFF, + 0xFF, + 0xFF, + 0xFF, + 0xFF +}; + +static int AscExeScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq) +{ + PortAddr iop_base; + int sta; + int n_q_required; + int disable_syn_offset_one_fix; + int i; + ASC_PADDR addr; + ushort sg_entry_cnt = 0; + ushort sg_entry_cnt_minus_one = 0; + uchar target_ix; + uchar tid_no; + uchar sdtr_data; + uchar extra_bytes; + uchar scsi_cmd; + uchar disable_cmd; + ASC_SG_HEAD *sg_head; + ASC_DCNT data_cnt; + + iop_base = asc_dvc->iop_base; + sg_head = scsiq->sg_head; + if (asc_dvc->err_code != 0) + return (ERR); + scsiq->q1.q_no = 0; + if ((scsiq->q2.tag_code & ASC_TAG_FLAG_EXTRA_BYTES) == 0) { + scsiq->q1.extra_bytes = 0; + } + sta = 0; + target_ix = scsiq->q2.target_ix; + tid_no = ASC_TIX_TO_TID(target_ix); + n_q_required = 1; + if (scsiq->cdbptr[0] == REQUEST_SENSE) { + if ((asc_dvc->init_sdtr & scsiq->q1.target_id) != 0) { + asc_dvc->sdtr_done &= ~scsiq->q1.target_id; + sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no); + AscMsgOutSDTR(asc_dvc, + asc_dvc-> + sdtr_period_tbl[(sdtr_data >> 4) & + (uchar)(asc_dvc-> + max_sdtr_index - + 1)], + (uchar)(sdtr_data & (uchar) + ASC_SYN_MAX_OFFSET)); + scsiq->q1.cntl |= (QC_MSG_OUT | QC_URGENT); + } + } + if (asc_dvc->in_critical_cnt != 0) { + AscSetLibErrorCode(asc_dvc, ASCQ_ERR_CRITICAL_RE_ENTRY); + return (ERR); + } + asc_dvc->in_critical_cnt++; + if ((scsiq->q1.cntl & QC_SG_HEAD) != 0) { + if ((sg_entry_cnt = sg_head->entry_cnt) == 0) { + asc_dvc->in_critical_cnt--; + return (ERR); + } +#if !CC_VERY_LONG_SG_LIST + if (sg_entry_cnt > ASC_MAX_SG_LIST) { + asc_dvc->in_critical_cnt--; + return (ERR); + } +#endif /* !CC_VERY_LONG_SG_LIST */ + if (sg_entry_cnt == 1) { + scsiq->q1.data_addr = + (ADV_PADDR)sg_head->sg_list[0].addr; + scsiq->q1.data_cnt = + (ADV_DCNT)sg_head->sg_list[0].bytes; + scsiq->q1.cntl &= ~(QC_SG_HEAD | QC_SG_SWAP_QUEUE); + } + sg_entry_cnt_minus_one = sg_entry_cnt - 1; + } + scsi_cmd = scsiq->cdbptr[0]; + disable_syn_offset_one_fix = FALSE; + if ((asc_dvc->pci_fix_asyn_xfer & scsiq->q1.target_id) && + !(asc_dvc->pci_fix_asyn_xfer_always & scsiq->q1.target_id)) { + if (scsiq->q1.cntl & QC_SG_HEAD) { + data_cnt = 0; + for (i = 0; i < sg_entry_cnt; i++) { + data_cnt += + (ADV_DCNT)le32_to_cpu(sg_head->sg_list[i]. + bytes); + } + } else { + data_cnt = le32_to_cpu(scsiq->q1.data_cnt); + } + if (data_cnt != 0UL) { + if (data_cnt < 512UL) { + disable_syn_offset_one_fix = TRUE; + } else { + for (i = 0; i < ASC_SYN_OFFSET_ONE_DISABLE_LIST; + i++) { + disable_cmd = + _syn_offset_one_disable_cmd[i]; + if (disable_cmd == 0xFF) { + break; + } + if (scsi_cmd == disable_cmd) { + disable_syn_offset_one_fix = + TRUE; + break; + } + } + } + } + } + if (disable_syn_offset_one_fix) { + scsiq->q2.tag_code &= ~MSG_SIMPLE_TAG; + scsiq->q2.tag_code |= (ASC_TAG_FLAG_DISABLE_ASYN_USE_SYN_FIX | + ASC_TAG_FLAG_DISABLE_DISCONNECT); + } else { + scsiq->q2.tag_code &= 0x27; + } + if ((scsiq->q1.cntl & QC_SG_HEAD) != 0) { + if (asc_dvc->bug_fix_cntl) { + if (asc_dvc->bug_fix_cntl & ASC_BUG_FIX_IF_NOT_DWB) { + if ((scsi_cmd == READ_6) || + (scsi_cmd == READ_10)) { + addr = + (ADV_PADDR)le32_to_cpu(sg_head-> + sg_list + [sg_entry_cnt_minus_one]. + addr) + + (ADV_DCNT)le32_to_cpu(sg_head-> + sg_list + [sg_entry_cnt_minus_one]. + bytes); + extra_bytes = + (uchar)((ushort)addr & 0x0003); + if ((extra_bytes != 0) + && + ((scsiq->q2. + tag_code & + ASC_TAG_FLAG_EXTRA_BYTES) + == 0)) { + scsiq->q2.tag_code |= + ASC_TAG_FLAG_EXTRA_BYTES; + scsiq->q1.extra_bytes = + extra_bytes; + data_cnt = + le32_to_cpu(sg_head-> + sg_list + [sg_entry_cnt_minus_one]. + bytes); + data_cnt -= + (ASC_DCNT) extra_bytes; + sg_head-> + sg_list + [sg_entry_cnt_minus_one]. + bytes = + cpu_to_le32(data_cnt); + } + } + } + } + sg_head->entry_to_copy = sg_head->entry_cnt; +#if CC_VERY_LONG_SG_LIST + /* + * Set the sg_entry_cnt to the maximum possible. The rest of + * the SG elements will be copied when the RISC completes the + * SG elements that fit and halts. + */ + if (sg_entry_cnt > ASC_MAX_SG_LIST) { + sg_entry_cnt = ASC_MAX_SG_LIST; + } +#endif /* CC_VERY_LONG_SG_LIST */ + n_q_required = AscSgListToQueue(sg_entry_cnt); + if ((AscGetNumOfFreeQueue(asc_dvc, target_ix, n_q_required) >= + (uint) n_q_required) + || ((scsiq->q1.cntl & QC_URGENT) != 0)) { + if ((sta = + AscSendScsiQueue(asc_dvc, scsiq, + n_q_required)) == 1) { + asc_dvc->in_critical_cnt--; + return (sta); + } + } + } else { + if (asc_dvc->bug_fix_cntl) { + if (asc_dvc->bug_fix_cntl & ASC_BUG_FIX_IF_NOT_DWB) { + if ((scsi_cmd == READ_6) || + (scsi_cmd == READ_10)) { + addr = + le32_to_cpu(scsiq->q1.data_addr) + + le32_to_cpu(scsiq->q1.data_cnt); + extra_bytes = + (uchar)((ushort)addr & 0x0003); + if ((extra_bytes != 0) + && + ((scsiq->q2. + tag_code & + ASC_TAG_FLAG_EXTRA_BYTES) + == 0)) { + data_cnt = + le32_to_cpu(scsiq->q1. + data_cnt); + if (((ushort)data_cnt & 0x01FF) + == 0) { + scsiq->q2.tag_code |= + ASC_TAG_FLAG_EXTRA_BYTES; + data_cnt -= (ASC_DCNT) + extra_bytes; + scsiq->q1.data_cnt = + cpu_to_le32 + (data_cnt); + scsiq->q1.extra_bytes = + extra_bytes; + } + } + } + } + } + n_q_required = 1; + if ((AscGetNumOfFreeQueue(asc_dvc, target_ix, 1) >= 1) || + ((scsiq->q1.cntl & QC_URGENT) != 0)) { + if ((sta = AscSendScsiQueue(asc_dvc, scsiq, + n_q_required)) == 1) { + asc_dvc->in_critical_cnt--; + return (sta); + } + } + } + asc_dvc->in_critical_cnt--; + return (sta); +} + +/* + * AdvExeScsiQueue() - Send a request to the RISC microcode program. + * + * Allocate a carrier structure, point the carrier to the ADV_SCSI_REQ_Q, + * add the carrier to the ICQ (Initiator Command Queue), and tickle the + * RISC to notify it a new command is ready to be executed. + * + * If 'done_status' is not set to QD_DO_RETRY, then 'error_retry' will be + * set to SCSI_MAX_RETRY. + * + * Multi-byte fields in the ASC_SCSI_REQ_Q that are used by the microcode + * for DMA addresses or math operations are byte swapped to little-endian + * order. + * + * Return: + * ADV_SUCCESS(1) - The request was successfully queued. + * ADV_BUSY(0) - Resource unavailable; Retry again after pending + * request completes. + * ADV_ERROR(-1) - Invalid ADV_SCSI_REQ_Q request structure + * host IC error. + */ +static int AdvExeScsiQueue(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq) +{ + AdvPortAddr iop_base; + ADV_DCNT req_size; + ADV_PADDR req_paddr; + ADV_CARR_T *new_carrp; + + /* + * The ADV_SCSI_REQ_Q 'target_id' field should never exceed ADV_MAX_TID. + */ + if (scsiq->target_id > ADV_MAX_TID) { + scsiq->host_status = QHSTA_M_INVALID_DEVICE; + scsiq->done_status = QD_WITH_ERROR; + return ADV_ERROR; + } + + iop_base = asc_dvc->iop_base; + + /* + * Allocate a carrier ensuring at least one carrier always + * remains on the freelist and initialize fields. + */ + if ((new_carrp = asc_dvc->carr_freelist) == NULL) { + return ADV_BUSY; + } + asc_dvc->carr_freelist = (ADV_CARR_T *) + ADV_U32_TO_VADDR(le32_to_cpu(new_carrp->next_vpa)); + asc_dvc->carr_pending_cnt++; + + /* + * Set the carrier to be a stopper by setting 'next_vpa' + * to the stopper value. The current stopper will be changed + * below to point to the new stopper. + */ + new_carrp->next_vpa = cpu_to_le32(ASC_CQ_STOPPER); + + /* + * Clear the ADV_SCSI_REQ_Q done flag. + */ + scsiq->a_flag &= ~ADV_SCSIQ_DONE; + + req_size = sizeof(ADV_SCSI_REQ_Q); + req_paddr = DvcGetPhyAddr(asc_dvc, scsiq, (uchar *)scsiq, + (ADV_SDCNT *)&req_size, ADV_IS_SCSIQ_FLAG); + + BUG_ON(req_paddr & 31); + BUG_ON(req_size < sizeof(ADV_SCSI_REQ_Q)); + + /* Wait for assertion before making little-endian */ + req_paddr = cpu_to_le32(req_paddr); + + /* Save virtual and physical address of ADV_SCSI_REQ_Q and carrier. */ + scsiq->scsiq_ptr = cpu_to_le32(ADV_VADDR_TO_U32(scsiq)); + scsiq->scsiq_rptr = req_paddr; + + scsiq->carr_va = cpu_to_le32(ADV_VADDR_TO_U32(asc_dvc->icq_sp)); + /* + * Every ADV_CARR_T.carr_pa is byte swapped to little-endian + * order during initialization. + */ + scsiq->carr_pa = asc_dvc->icq_sp->carr_pa; + + /* + * Use the current stopper to send the ADV_SCSI_REQ_Q command to + * the microcode. The newly allocated stopper will become the new + * stopper. + */ + asc_dvc->icq_sp->areq_vpa = req_paddr; + + /* + * Set the 'next_vpa' pointer for the old stopper to be the + * physical address of the new stopper. The RISC can only + * follow physical addresses. + */ + asc_dvc->icq_sp->next_vpa = new_carrp->carr_pa; + + /* + * Set the host adapter stopper pointer to point to the new carrier. + */ + asc_dvc->icq_sp = new_carrp; + + if (asc_dvc->chip_type == ADV_CHIP_ASC3550 || + asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { + /* + * Tickle the RISC to tell it to read its Command Queue Head pointer. + */ + AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_A); + if (asc_dvc->chip_type == ADV_CHIP_ASC3550) { + /* + * Clear the tickle value. In the ASC-3550 the RISC flag + * command 'clr_tickle_a' does not work unless the host + * value is cleared. + */ + AdvWriteByteRegister(iop_base, IOPB_TICKLE, + ADV_TICKLE_NOP); + } + } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { + /* + * Notify the RISC a carrier is ready by writing the physical + * address of the new carrier stopper to the COMMA register. + */ + AdvWriteDWordRegister(iop_base, IOPDW_COMMA, + le32_to_cpu(new_carrp->carr_pa)); + } + + return ADV_SUCCESS; +} + +/* + * Execute a single 'Scsi_Cmnd'. + * + * The function 'done' is called when the request has been completed. + * + * Scsi_Cmnd: + * + * host - board controlling device + * device - device to send command + * target - target of device + * lun - lun of device + * cmd_len - length of SCSI CDB + * cmnd - buffer for SCSI 8, 10, or 12 byte CDB + * use_sg - if non-zero indicates scatter-gather request with use_sg elements + * + * if (use_sg == 0) { + * request_buffer - buffer address for request + * request_bufflen - length of request buffer + * } else { + * request_buffer - pointer to scatterlist structure + * } + * + * sense_buffer - sense command buffer + * + * result (4 bytes of an int): + * Byte Meaning + * 0 SCSI Status Byte Code + * 1 SCSI One Byte Message Code + * 2 Host Error Code + * 3 Mid-Level Error Code + * + * host driver fields: + * SCp - Scsi_Pointer used for command processing status + * scsi_done - used to save caller's done function + * host_scribble - used for pointer to another struct scsi_cmnd + * + * If this function returns ASC_NOERROR the request will be completed + * from the interrupt handler. + * + * If this function returns ASC_ERROR the host error code has been set, + * and the called must call asc_scsi_done. + * + * If ASC_BUSY is returned the request will be returned to the midlayer + * and re-tried later. + */ +static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) +{ + asc_board_t *boardp; + ASC_DVC_VAR *asc_dvc_varp; + ADV_DVC_VAR *adv_dvc_varp; + ADV_SCSI_REQ_Q *adv_scsiqp; + struct scsi_device *device; + int ret; + + ASC_DBG2(1, "asc_execute_scsi_cmnd: scp 0x%lx, done 0x%lx\n", + (ulong)scp, (ulong)scp->scsi_done); + + boardp = ASC_BOARDP(scp->device->host); + device = boardp->device[scp->device->id]; + + if (ASC_NARROW_BOARD(boardp)) { + /* + * Build and execute Narrow Board request. + */ + + asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; + + /* + * Build Asc Library request structure using the + * global structures 'asc_scsi_req' and 'asc_sg_head'. + * + * If an error is returned, then the request has been + * queued on the board done queue. It will be completed + * by the caller. + * + * asc_build_req() can not return ASC_BUSY. + */ + if (asc_build_req(boardp, scp) == ASC_ERROR) { + ASC_STATS(scp->device->host, build_error); + return ASC_ERROR; + } + + switch (ret = AscExeScsiQueue(asc_dvc_varp, &asc_scsi_q)) { + case ASC_NOERROR: + ASC_STATS(scp->device->host, exe_noerror); + /* + * Increment monotonically increasing per device + * successful request counter. Wrapping doesn't matter. + */ + boardp->reqcnt[scp->device->id]++; + ASC_DBG(1, "asc_execute_scsi_cmnd: AscExeScsiQueue(), " + "ASC_NOERROR\n"); + break; + case ASC_BUSY: + ASC_STATS(scp->device->host, exe_busy); + break; + case ASC_ERROR: + ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " + "AscExeScsiQueue() ASC_ERROR, err_code 0x%x\n", + boardp->id, asc_dvc_varp->err_code); + ASC_STATS(scp->device->host, exe_error); + scp->result = HOST_BYTE(DID_ERROR); + break; + default: + ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " + "AscExeScsiQueue() unknown, err_code 0x%x\n", + boardp->id, asc_dvc_varp->err_code); + ASC_STATS(scp->device->host, exe_unknown); + scp->result = HOST_BYTE(DID_ERROR); + break; + } + } else { + /* + * Build and execute Wide Board request. + */ + adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; + + /* + * Build and get a pointer to an Adv Library request structure. + * + * If the request is successfully built then send it below, + * otherwise return with an error. + */ + switch (adv_build_req(boardp, scp, &adv_scsiqp)) { + case ASC_NOERROR: + ASC_DBG(3, "asc_execute_scsi_cmnd: adv_build_req " + "ASC_NOERROR\n"); + break; + case ASC_BUSY: + ASC_DBG(1, "asc_execute_scsi_cmnd: adv_build_req " + "ASC_BUSY\n"); + /* + * The asc_stats fields 'adv_build_noreq' and + * 'adv_build_nosg' count wide board busy conditions. + * They are updated in adv_build_req and + * adv_get_sglist, respectively. + */ + return ASC_BUSY; + case ASC_ERROR: + default: + ASC_DBG(1, "asc_execute_scsi_cmnd: adv_build_req " + "ASC_ERROR\n"); + ASC_STATS(scp->device->host, build_error); + return ASC_ERROR; + } + + switch (ret = AdvExeScsiQueue(adv_dvc_varp, adv_scsiqp)) { + case ASC_NOERROR: + ASC_STATS(scp->device->host, exe_noerror); + /* + * Increment monotonically increasing per device + * successful request counter. Wrapping doesn't matter. + */ + boardp->reqcnt[scp->device->id]++; + ASC_DBG(1, "asc_execute_scsi_cmnd: AdvExeScsiQueue(), " + "ASC_NOERROR\n"); + break; + case ASC_BUSY: + ASC_STATS(scp->device->host, exe_busy); + break; + case ASC_ERROR: + ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " + "AdvExeScsiQueue() ASC_ERROR, err_code 0x%x\n", + boardp->id, adv_dvc_varp->err_code); + ASC_STATS(scp->device->host, exe_error); + scp->result = HOST_BYTE(DID_ERROR); + break; + default: + ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " + "AdvExeScsiQueue() unknown, err_code 0x%x\n", + boardp->id, adv_dvc_varp->err_code); + ASC_STATS(scp->device->host, exe_unknown); + scp->result = HOST_BYTE(DID_ERROR); + break; + } + } + + ASC_DBG(1, "asc_execute_scsi_cmnd: end\n"); + return ret; +} + +/* + * advansys_queuecommand() - interrupt-driven I/O entrypoint. + * + * This function always returns 0. Command return status is saved + * in the 'scp' result field. + */ +static int +advansys_queuecommand(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd *)) +{ + struct Scsi_Host *shost = scp->device->host; + asc_board_t *boardp = ASC_BOARDP(shost); + unsigned long flags; + int asc_res, result = 0; + + ASC_STATS(shost, queuecommand); + scp->scsi_done = done; + + /* + * host_lock taken by mid-level prior to call, but need + * to protect against own ISR + */ + spin_lock_irqsave(&boardp->lock, flags); + asc_res = asc_execute_scsi_cmnd(scp); + spin_unlock_irqrestore(&boardp->lock, flags); + + switch (asc_res) { + case ASC_NOERROR: + break; + case ASC_BUSY: + result = SCSI_MLQUEUE_HOST_BUSY; + break; + case ASC_ERROR: + default: + asc_scsi_done(scp); + break; + } + + return result; +} + +/* + * Return the BIOS address of the adapter at the specified + * I/O port and with the specified bus type. + */ +static unsigned short __devinit +AscGetChipBiosAddress(PortAddr iop_base, unsigned short bus_type) +{ + unsigned short cfg_lsw; + unsigned short bios_addr; + + /* + * The PCI BIOS is re-located by the motherboard BIOS. Because + * of this the driver can not determine where a PCI BIOS is + * loaded and executes. + */ + if (bus_type & ASC_IS_PCI) + return 0; + +#ifdef CONFIG_ISA + if ((bus_type & ASC_IS_EISA) != 0) { + cfg_lsw = AscGetEisaChipCfg(iop_base); + cfg_lsw &= 0x000F; + bios_addr = ASC_BIOS_MIN_ADDR + cfg_lsw * ASC_BIOS_BANK_SIZE; + return bios_addr; + } +#endif /* CONFIG_ISA */ + + cfg_lsw = AscGetChipCfgLsw(iop_base); + + /* + * ISA PnP uses the top bit as the 32K BIOS flag + */ + if (bus_type == ASC_IS_ISAPNP) + cfg_lsw &= 0x7FFF; + bios_addr = ASC_BIOS_MIN_ADDR + (cfg_lsw >> 12) * ASC_BIOS_BANK_SIZE; + return bios_addr; +} + +static ushort __devinit AscGetEisaChipCfg(PortAddr iop_base) +{ + PortAddr eisa_cfg_iop; + + eisa_cfg_iop = (PortAddr) ASC_GET_EISA_SLOT(iop_base) | + (PortAddr) (ASC_EISA_CFG_IOP_MASK); + return (inpw(eisa_cfg_iop)); +} + +static uchar __devinit AscSetChipScsiID(PortAddr iop_base, uchar new_host_id) +{ + ushort cfg_lsw; + + if (AscGetChipScsiID(iop_base) == new_host_id) { + return (new_host_id); + } + cfg_lsw = AscGetChipCfgLsw(iop_base); + cfg_lsw &= 0xF8FF; + cfg_lsw |= (ushort)((new_host_id & ASC_MAX_TID) << 8); + AscSetChipCfgLsw(iop_base, cfg_lsw); + return (AscGetChipScsiID(iop_base)); +} + +static unsigned char __devinit AscGetChipScsiCtrl(PortAddr iop_base) +{ + unsigned char sc; + + AscSetBank(iop_base, 1); + sc = inp(iop_base + IOP_REG_SC); + AscSetBank(iop_base, 0); + return sc; +} + +static unsigned char __devinit +AscGetChipVersion(PortAddr iop_base, unsigned short bus_type) +{ + if (bus_type & ASC_IS_EISA) { + PortAddr eisa_iop; + unsigned char revision; + eisa_iop = (PortAddr) ASC_GET_EISA_SLOT(iop_base) | + (PortAddr) ASC_EISA_REV_IOP_MASK; + revision = inp(eisa_iop); + return ASC_CHIP_MIN_VER_EISA - 1 + revision; + } + return AscGetChipVerNo(iop_base); +} + +static void __devinit AscToggleIRQAct(PortAddr iop_base) +{ + AscSetChipStatus(iop_base, CIW_IRQ_ACT); + AscSetChipStatus(iop_base, 0); + return; +} + +static uchar __devinit AscGetChipIRQ(PortAddr iop_base, ushort bus_type) +{ + ushort cfg_lsw; + uchar chip_irq; + + if ((bus_type & ASC_IS_EISA) != 0) { + cfg_lsw = AscGetEisaChipCfg(iop_base); + chip_irq = (uchar)(((cfg_lsw >> 8) & 0x07) + 10); + if ((chip_irq == 13) || (chip_irq > 15)) { + return (0); + } + return (chip_irq); + } + if ((bus_type & ASC_IS_VL) != 0) { + cfg_lsw = AscGetChipCfgLsw(iop_base); + chip_irq = (uchar)(((cfg_lsw >> 2) & 0x07)); + if ((chip_irq == 0) || (chip_irq == 4) || (chip_irq == 7)) { + return (0); + } + return ((uchar)(chip_irq + (ASC_MIN_IRQ_NO - 1))); + } + cfg_lsw = AscGetChipCfgLsw(iop_base); + chip_irq = (uchar)(((cfg_lsw >> 2) & 0x03)); + if (chip_irq == 3) + chip_irq += (uchar)2; + return ((uchar)(chip_irq + ASC_MIN_IRQ_NO)); +} + +static uchar __devinit +AscSetChipIRQ(PortAddr iop_base, uchar irq_no, ushort bus_type) +{ + ushort cfg_lsw; + + if ((bus_type & ASC_IS_VL) != 0) { + if (irq_no != 0) { + if ((irq_no < ASC_MIN_IRQ_NO) + || (irq_no > ASC_MAX_IRQ_NO)) { + irq_no = 0; + } else { + irq_no -= (uchar)((ASC_MIN_IRQ_NO - 1)); + } + } + cfg_lsw = (ushort)(AscGetChipCfgLsw(iop_base) & 0xFFE3); + cfg_lsw |= (ushort)0x0010; + AscSetChipCfgLsw(iop_base, cfg_lsw); + AscToggleIRQAct(iop_base); + cfg_lsw = (ushort)(AscGetChipCfgLsw(iop_base) & 0xFFE0); + cfg_lsw |= (ushort)((irq_no & 0x07) << 2); + AscSetChipCfgLsw(iop_base, cfg_lsw); + AscToggleIRQAct(iop_base); + return (AscGetChipIRQ(iop_base, bus_type)); + } + if ((bus_type & (ASC_IS_ISA)) != 0) { + if (irq_no == 15) + irq_no -= (uchar)2; + irq_no -= (uchar)ASC_MIN_IRQ_NO; + cfg_lsw = (ushort)(AscGetChipCfgLsw(iop_base) & 0xFFF3); + cfg_lsw |= (ushort)((irq_no & 0x03) << 2); + AscSetChipCfgLsw(iop_base, cfg_lsw); + return (AscGetChipIRQ(iop_base, bus_type)); + } + return (0); +} + +#ifdef CONFIG_ISA +static void __devinit AscEnableIsaDma(uchar dma_channel) +{ + if (dma_channel < 4) { + outp(0x000B, (ushort)(0xC0 | dma_channel)); + outp(0x000A, dma_channel); + } else if (dma_channel < 8) { + outp(0x00D6, (ushort)(0xC0 | (dma_channel - 4))); + outp(0x00D4, (ushort)(dma_channel - 4)); + } + return; +} +#endif /* CONFIG_ISA */ + +static int AscStopQueueExe(PortAddr iop_base) +{ + int count = 0; + + if (AscReadLramByte(iop_base, ASCV_STOP_CODE_B) == 0) { + AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, + ASC_STOP_REQ_RISC_STOP); + do { + if (AscReadLramByte(iop_base, ASCV_STOP_CODE_B) & + ASC_STOP_ACK_RISC_STOP) { + return (1); + } + mdelay(100); + } while (count++ < 20); + } + return (0); +} + +static ASC_DCNT __devinit AscGetMaxDmaCount(ushort bus_type) +{ + if (bus_type & ASC_IS_ISA) + return ASC_MAX_ISA_DMA_COUNT; + else if (bus_type & (ASC_IS_EISA | ASC_IS_VL)) + return ASC_MAX_VL_DMA_COUNT; + return ASC_MAX_PCI_DMA_COUNT; +} + +#ifdef CONFIG_ISA +static ushort __devinit AscGetIsaDmaChannel(PortAddr iop_base) +{ + ushort channel; + + channel = AscGetChipCfgLsw(iop_base) & 0x0003; + if (channel == 0x03) + return (0); + else if (channel == 0x00) + return (7); + return (channel + 4); +} + +static ushort __devinit AscSetIsaDmaChannel(PortAddr iop_base, ushort dma_channel) +{ + ushort cfg_lsw; + uchar value; + + if ((dma_channel >= 5) && (dma_channel <= 7)) { + if (dma_channel == 7) + value = 0x00; + else + value = dma_channel - 4; + cfg_lsw = AscGetChipCfgLsw(iop_base) & 0xFFFC; + cfg_lsw |= value; + AscSetChipCfgLsw(iop_base, cfg_lsw); + return (AscGetIsaDmaChannel(iop_base)); + } + return (0); +} + +static uchar __devinit AscSetIsaDmaSpeed(PortAddr iop_base, uchar speed_value) +{ + speed_value &= 0x07; + AscSetBank(iop_base, 1); + AscWriteChipDmaSpeed(iop_base, speed_value); + AscSetBank(iop_base, 0); + return (AscGetIsaDmaSpeed(iop_base)); +} + +static uchar __devinit AscGetIsaDmaSpeed(PortAddr iop_base) +{ + uchar speed_value; + + AscSetBank(iop_base, 1); + speed_value = AscReadChipDmaSpeed(iop_base); + speed_value &= 0x07; + AscSetBank(iop_base, 0); + return (speed_value); +} +#endif /* CONFIG_ISA */ + +static ushort __devinit AscInitAscDvcVar(ASC_DVC_VAR *asc_dvc) +{ + int i; + PortAddr iop_base; + ushort warn_code; + uchar chip_version; + + iop_base = asc_dvc->iop_base; + warn_code = 0; + asc_dvc->err_code = 0; + if ((asc_dvc->bus_type & + (ASC_IS_ISA | ASC_IS_PCI | ASC_IS_EISA | ASC_IS_VL)) == 0) { + asc_dvc->err_code |= ASC_IERR_NO_BUS_TYPE; + } + AscSetChipControl(iop_base, CC_HALT); + AscSetChipStatus(iop_base, 0); + asc_dvc->bug_fix_cntl = 0; + asc_dvc->pci_fix_asyn_xfer = 0; + asc_dvc->pci_fix_asyn_xfer_always = 0; + /* asc_dvc->init_state initalized in AscInitGetConfig(). */ + asc_dvc->sdtr_done = 0; + asc_dvc->cur_total_qng = 0; + asc_dvc->is_in_int = 0; + asc_dvc->in_critical_cnt = 0; + asc_dvc->last_q_shortage = 0; + asc_dvc->use_tagged_qng = 0; + asc_dvc->no_scam = 0; + asc_dvc->unit_not_ready = 0; + asc_dvc->queue_full_or_busy = 0; + asc_dvc->redo_scam = 0; + asc_dvc->res2 = 0; + asc_dvc->host_init_sdtr_index = 0; + asc_dvc->cfg->can_tagged_qng = 0; + asc_dvc->cfg->cmd_qng_enabled = 0; + asc_dvc->dvc_cntl = ASC_DEF_DVC_CNTL; + asc_dvc->init_sdtr = 0; + asc_dvc->max_total_qng = ASC_DEF_MAX_TOTAL_QNG; + asc_dvc->scsi_reset_wait = 3; + asc_dvc->start_motor = ASC_SCSI_WIDTH_BIT_SET; + asc_dvc->max_dma_count = AscGetMaxDmaCount(asc_dvc->bus_type); + asc_dvc->cfg->sdtr_enable = ASC_SCSI_WIDTH_BIT_SET; + asc_dvc->cfg->disc_enable = ASC_SCSI_WIDTH_BIT_SET; + asc_dvc->cfg->chip_scsi_id = ASC_DEF_CHIP_SCSI_ID; + asc_dvc->cfg->lib_serial_no = ASC_LIB_SERIAL_NUMBER; + asc_dvc->cfg->lib_version = (ASC_LIB_VERSION_MAJOR << 8) | + ASC_LIB_VERSION_MINOR; + chip_version = AscGetChipVersion(iop_base, asc_dvc->bus_type); + asc_dvc->cfg->chip_version = chip_version; + asc_dvc->sdtr_period_tbl[0] = SYN_XFER_NS_0; + asc_dvc->sdtr_period_tbl[1] = SYN_XFER_NS_1; + asc_dvc->sdtr_period_tbl[2] = SYN_XFER_NS_2; + asc_dvc->sdtr_period_tbl[3] = SYN_XFER_NS_3; + asc_dvc->sdtr_period_tbl[4] = SYN_XFER_NS_4; + asc_dvc->sdtr_period_tbl[5] = SYN_XFER_NS_5; + asc_dvc->sdtr_period_tbl[6] = SYN_XFER_NS_6; + asc_dvc->sdtr_period_tbl[7] = SYN_XFER_NS_7; + asc_dvc->max_sdtr_index = 7; + if ((asc_dvc->bus_type & ASC_IS_PCI) && + (chip_version >= ASC_CHIP_VER_PCI_ULTRA_3150)) { + asc_dvc->bus_type = ASC_IS_PCI_ULTRA; + asc_dvc->sdtr_period_tbl[0] = SYN_ULTRA_XFER_NS_0; + asc_dvc->sdtr_period_tbl[1] = SYN_ULTRA_XFER_NS_1; + asc_dvc->sdtr_period_tbl[2] = SYN_ULTRA_XFER_NS_2; + asc_dvc->sdtr_period_tbl[3] = SYN_ULTRA_XFER_NS_3; + asc_dvc->sdtr_period_tbl[4] = SYN_ULTRA_XFER_NS_4; + asc_dvc->sdtr_period_tbl[5] = SYN_ULTRA_XFER_NS_5; + asc_dvc->sdtr_period_tbl[6] = SYN_ULTRA_XFER_NS_6; + asc_dvc->sdtr_period_tbl[7] = SYN_ULTRA_XFER_NS_7; + asc_dvc->sdtr_period_tbl[8] = SYN_ULTRA_XFER_NS_8; + asc_dvc->sdtr_period_tbl[9] = SYN_ULTRA_XFER_NS_9; + asc_dvc->sdtr_period_tbl[10] = SYN_ULTRA_XFER_NS_10; + asc_dvc->sdtr_period_tbl[11] = SYN_ULTRA_XFER_NS_11; + asc_dvc->sdtr_period_tbl[12] = SYN_ULTRA_XFER_NS_12; + asc_dvc->sdtr_period_tbl[13] = SYN_ULTRA_XFER_NS_13; + asc_dvc->sdtr_period_tbl[14] = SYN_ULTRA_XFER_NS_14; + asc_dvc->sdtr_period_tbl[15] = SYN_ULTRA_XFER_NS_15; + asc_dvc->max_sdtr_index = 15; + if (chip_version == ASC_CHIP_VER_PCI_ULTRA_3150) { + AscSetExtraControl(iop_base, + (SEC_ACTIVE_NEGATE | SEC_SLEW_RATE)); + } else if (chip_version >= ASC_CHIP_VER_PCI_ULTRA_3050) { + AscSetExtraControl(iop_base, + (SEC_ACTIVE_NEGATE | + SEC_ENABLE_FILTER)); + } + } + if (asc_dvc->bus_type == ASC_IS_PCI) { + AscSetExtraControl(iop_base, + (SEC_ACTIVE_NEGATE | SEC_SLEW_RATE)); + } + + asc_dvc->cfg->isa_dma_speed = ASC_DEF_ISA_DMA_SPEED; +#ifdef CONFIG_ISA + if ((asc_dvc->bus_type & ASC_IS_ISA) != 0) { + if (chip_version >= ASC_CHIP_MIN_VER_ISA_PNP) { + AscSetChipIFC(iop_base, IFC_INIT_DEFAULT); + asc_dvc->bus_type = ASC_IS_ISAPNP; + } + asc_dvc->cfg->isa_dma_channel = + (uchar)AscGetIsaDmaChannel(iop_base); + } +#endif /* CONFIG_ISA */ + for (i = 0; i <= ASC_MAX_TID; i++) { + asc_dvc->cur_dvc_qng[i] = 0; + asc_dvc->max_dvc_qng[i] = ASC_MAX_SCSI1_QNG; + asc_dvc->scsiq_busy_head[i] = (ASC_SCSI_Q *)0L; + asc_dvc->scsiq_busy_tail[i] = (ASC_SCSI_Q *)0L; + asc_dvc->cfg->max_tag_qng[i] = ASC_MAX_INRAM_TAG_QNG; + } + return warn_code; +} + +static int __devinit AscWriteEEPCmdReg(PortAddr iop_base, uchar cmd_reg) +{ + int retry; + + for (retry = 0; retry < ASC_EEP_MAX_RETRY; retry++) { + unsigned char read_back; + AscSetChipEEPCmd(iop_base, cmd_reg); + mdelay(1); + read_back = AscGetChipEEPCmd(iop_base); + if (read_back == cmd_reg) + return 1; + } + return 0; +} + +static void __devinit AscWaitEEPRead(void) +{ + mdelay(1); +} + +static ushort __devinit AscReadEEPWord(PortAddr iop_base, uchar addr) +{ + ushort read_wval; + uchar cmd_reg; + + AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_DISABLE); + AscWaitEEPRead(); + cmd_reg = addr | ASC_EEP_CMD_READ; + AscWriteEEPCmdReg(iop_base, cmd_reg); + AscWaitEEPRead(); + read_wval = AscGetChipEEPData(iop_base); + AscWaitEEPRead(); + return read_wval; +} + +static ushort __devinit +AscGetEEPConfig(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, ushort bus_type) +{ + ushort wval; + ushort sum; + ushort *wbuf; + int cfg_beg; + int cfg_end; + int uchar_end_in_config = ASC_EEP_MAX_DVC_ADDR - 2; + int s_addr; + + wbuf = (ushort *)cfg_buf; + sum = 0; + /* Read two config words; Byte-swapping done by AscReadEEPWord(). */ + for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) { + *wbuf = AscReadEEPWord(iop_base, (uchar)s_addr); + sum += *wbuf; + } + if (bus_type & ASC_IS_VL) { + cfg_beg = ASC_EEP_DVC_CFG_BEG_VL; + cfg_end = ASC_EEP_MAX_DVC_ADDR_VL; + } else { + cfg_beg = ASC_EEP_DVC_CFG_BEG; + cfg_end = ASC_EEP_MAX_DVC_ADDR; + } + for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) { + wval = AscReadEEPWord(iop_base, (uchar)s_addr); + if (s_addr <= uchar_end_in_config) { + /* + * Swap all char fields - must unswap bytes already swapped + * by AscReadEEPWord(). + */ + *wbuf = le16_to_cpu(wval); + } else { + /* Don't swap word field at the end - cntl field. */ + *wbuf = wval; + } + sum += wval; /* Checksum treats all EEPROM data as words. */ + } + /* + * Read the checksum word which will be compared against 'sum' + * by the caller. Word field already swapped. + */ + *wbuf = AscReadEEPWord(iop_base, (uchar)s_addr); + return sum; +} + +static int __devinit AscTestExternalLram(ASC_DVC_VAR *asc_dvc) +{ + PortAddr iop_base; + ushort q_addr; + ushort saved_word; + int sta; + + iop_base = asc_dvc->iop_base; + sta = 0; + q_addr = ASC_QNO_TO_QADDR(241); + saved_word = AscReadLramWord(iop_base, q_addr); + AscSetChipLramAddr(iop_base, q_addr); + AscSetChipLramData(iop_base, 0x55AA); + mdelay(10); + AscSetChipLramAddr(iop_base, q_addr); + if (AscGetChipLramData(iop_base) == 0x55AA) { + sta = 1; + AscWriteLramWord(iop_base, q_addr, saved_word); + } + return (sta); +} + +static void __devinit AscWaitEEPWrite(void) +{ + mdelay(20); + return; +} + +static int __devinit AscWriteEEPDataReg(PortAddr iop_base, ushort data_reg) +{ + ushort read_back; + int retry; + + retry = 0; + while (TRUE) { + AscSetChipEEPData(iop_base, data_reg); + mdelay(1); + read_back = AscGetChipEEPData(iop_base); + if (read_back == data_reg) { + return (1); + } + if (retry++ > ASC_EEP_MAX_RETRY) { + return (0); + } + } +} + +static ushort __devinit +AscWriteEEPWord(PortAddr iop_base, uchar addr, ushort word_val) +{ + ushort read_wval; + + read_wval = AscReadEEPWord(iop_base, addr); + if (read_wval != word_val) { + AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_ABLE); + AscWaitEEPRead(); + AscWriteEEPDataReg(iop_base, word_val); + AscWaitEEPRead(); + AscWriteEEPCmdReg(iop_base, + (uchar)((uchar)ASC_EEP_CMD_WRITE | addr)); + AscWaitEEPWrite(); + AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_DISABLE); + AscWaitEEPRead(); + return (AscReadEEPWord(iop_base, addr)); + } + return (read_wval); +} + +static int __devinit +AscSetEEPConfigOnce(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, ushort bus_type) +{ + int n_error; + ushort *wbuf; + ushort word; + ushort sum; + int s_addr; + int cfg_beg; + int cfg_end; + int uchar_end_in_config = ASC_EEP_MAX_DVC_ADDR - 2; + + wbuf = (ushort *)cfg_buf; + n_error = 0; + sum = 0; + /* Write two config words; AscWriteEEPWord() will swap bytes. */ + for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) { + sum += *wbuf; + if (*wbuf != AscWriteEEPWord(iop_base, (uchar)s_addr, *wbuf)) { + n_error++; + } + } + if (bus_type & ASC_IS_VL) { + cfg_beg = ASC_EEP_DVC_CFG_BEG_VL; + cfg_end = ASC_EEP_MAX_DVC_ADDR_VL; + } else { + cfg_beg = ASC_EEP_DVC_CFG_BEG; + cfg_end = ASC_EEP_MAX_DVC_ADDR; + } + for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) { + if (s_addr <= uchar_end_in_config) { + /* + * This is a char field. Swap char fields before they are + * swapped again by AscWriteEEPWord(). + */ + word = cpu_to_le16(*wbuf); + if (word != + AscWriteEEPWord(iop_base, (uchar)s_addr, word)) { + n_error++; + } + } else { + /* Don't swap word field at the end - cntl field. */ + if (*wbuf != + AscWriteEEPWord(iop_base, (uchar)s_addr, *wbuf)) { + n_error++; + } + } + sum += *wbuf; /* Checksum calculated from word values. */ + } + /* Write checksum word. It will be swapped by AscWriteEEPWord(). */ + *wbuf = sum; + if (sum != AscWriteEEPWord(iop_base, (uchar)s_addr, sum)) { + n_error++; + } + + /* Read EEPROM back again. */ + wbuf = (ushort *)cfg_buf; + /* + * Read two config words; Byte-swapping done by AscReadEEPWord(). + */ + for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) { + if (*wbuf != AscReadEEPWord(iop_base, (uchar)s_addr)) { + n_error++; + } + } + if (bus_type & ASC_IS_VL) { + cfg_beg = ASC_EEP_DVC_CFG_BEG_VL; + cfg_end = ASC_EEP_MAX_DVC_ADDR_VL; + } else { + cfg_beg = ASC_EEP_DVC_CFG_BEG; + cfg_end = ASC_EEP_MAX_DVC_ADDR; + } + for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) { + if (s_addr <= uchar_end_in_config) { + /* + * Swap all char fields. Must unswap bytes already swapped + * by AscReadEEPWord(). + */ + word = + le16_to_cpu(AscReadEEPWord + (iop_base, (uchar)s_addr)); + } else { + /* Don't swap word field at the end - cntl field. */ + word = AscReadEEPWord(iop_base, (uchar)s_addr); + } + if (*wbuf != word) { + n_error++; + } + } + /* Read checksum; Byte swapping not needed. */ + if (AscReadEEPWord(iop_base, (uchar)s_addr) != sum) { + n_error++; + } + return n_error; +} + +static int __devinit +AscSetEEPConfig(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, ushort bus_type) +{ + int retry; + int n_error; + + retry = 0; + while (TRUE) { + if ((n_error = AscSetEEPConfigOnce(iop_base, cfg_buf, + bus_type)) == 0) { + break; + } + if (++retry > ASC_EEP_MAX_RETRY) { + break; + } + } + return n_error; +} + +static ushort __devinit AscInitFromEEP(ASC_DVC_VAR *asc_dvc) +{ + ASCEEP_CONFIG eep_config_buf; + ASCEEP_CONFIG *eep_config; + PortAddr iop_base; + ushort chksum; + ushort warn_code; + ushort cfg_msw, cfg_lsw; + int i; + int write_eep = 0; + + iop_base = asc_dvc->iop_base; + warn_code = 0; + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0x00FE); + AscStopQueueExe(iop_base); + if ((AscStopChip(iop_base) == FALSE) || + (AscGetChipScsiCtrl(iop_base) != 0)) { + asc_dvc->init_state |= ASC_INIT_RESET_SCSI_DONE; + AscResetChipAndScsiBus(asc_dvc); + mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ + } + if (AscIsChipHalted(iop_base) == FALSE) { + asc_dvc->err_code |= ASC_IERR_START_STOP_CHIP; + return (warn_code); + } + AscSetPCAddr(iop_base, ASC_MCODE_START_ADDR); + if (AscGetPCAddr(iop_base) != ASC_MCODE_START_ADDR) { + asc_dvc->err_code |= ASC_IERR_SET_PC_ADDR; + return (warn_code); + } + eep_config = (ASCEEP_CONFIG *)&eep_config_buf; + cfg_msw = AscGetChipCfgMsw(iop_base); + cfg_lsw = AscGetChipCfgLsw(iop_base); + if ((cfg_msw & ASC_CFG_MSW_CLR_MASK) != 0) { + cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; + warn_code |= ASC_WARN_CFG_MSW_RECOVER; + AscSetChipCfgMsw(iop_base, cfg_msw); + } + chksum = AscGetEEPConfig(iop_base, eep_config, asc_dvc->bus_type); + ASC_DBG1(1, "AscInitFromEEP: chksum 0x%x\n", chksum); + if (chksum == 0) { + chksum = 0xaa55; + } + if (AscGetChipStatus(iop_base) & CSW_AUTO_CONFIG) { + warn_code |= ASC_WARN_AUTO_CONFIG; + if (asc_dvc->cfg->chip_version == 3) { + if (eep_config->cfg_lsw != cfg_lsw) { + warn_code |= ASC_WARN_EEPROM_RECOVER; + eep_config->cfg_lsw = + AscGetChipCfgLsw(iop_base); + } + if (eep_config->cfg_msw != cfg_msw) { + warn_code |= ASC_WARN_EEPROM_RECOVER; + eep_config->cfg_msw = + AscGetChipCfgMsw(iop_base); + } + } + } + eep_config->cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; + eep_config->cfg_lsw |= ASC_CFG0_HOST_INT_ON; + ASC_DBG1(1, "AscInitFromEEP: eep_config->chksum 0x%x\n", + eep_config->chksum); + if (chksum != eep_config->chksum) { + if (AscGetChipVersion(iop_base, asc_dvc->bus_type) == + ASC_CHIP_VER_PCI_ULTRA_3050) { + ASC_DBG(1, + "AscInitFromEEP: chksum error ignored; EEPROM-less board\n"); + eep_config->init_sdtr = 0xFF; + eep_config->disc_enable = 0xFF; + eep_config->start_motor = 0xFF; + eep_config->use_cmd_qng = 0; + eep_config->max_total_qng = 0xF0; + eep_config->max_tag_qng = 0x20; + eep_config->cntl = 0xBFFF; + ASC_EEP_SET_CHIP_ID(eep_config, 7); + eep_config->no_scam = 0; + eep_config->adapter_info[0] = 0; + eep_config->adapter_info[1] = 0; + eep_config->adapter_info[2] = 0; + eep_config->adapter_info[3] = 0; + eep_config->adapter_info[4] = 0; + /* Indicate EEPROM-less board. */ + eep_config->adapter_info[5] = 0xBB; + } else { + ASC_PRINT + ("AscInitFromEEP: EEPROM checksum error; Will try to re-write EEPROM.\n"); + write_eep = 1; + warn_code |= ASC_WARN_EEPROM_CHKSUM; + } + } + asc_dvc->cfg->sdtr_enable = eep_config->init_sdtr; + asc_dvc->cfg->disc_enable = eep_config->disc_enable; + asc_dvc->cfg->cmd_qng_enabled = eep_config->use_cmd_qng; + asc_dvc->cfg->isa_dma_speed = ASC_EEP_GET_DMA_SPD(eep_config); + asc_dvc->start_motor = eep_config->start_motor; + asc_dvc->dvc_cntl = eep_config->cntl; + asc_dvc->no_scam = eep_config->no_scam; + asc_dvc->cfg->adapter_info[0] = eep_config->adapter_info[0]; + asc_dvc->cfg->adapter_info[1] = eep_config->adapter_info[1]; + asc_dvc->cfg->adapter_info[2] = eep_config->adapter_info[2]; + asc_dvc->cfg->adapter_info[3] = eep_config->adapter_info[3]; + asc_dvc->cfg->adapter_info[4] = eep_config->adapter_info[4]; + asc_dvc->cfg->adapter_info[5] = eep_config->adapter_info[5]; + if (!AscTestExternalLram(asc_dvc)) { + if (((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == + ASC_IS_PCI_ULTRA)) { + eep_config->max_total_qng = + ASC_MAX_PCI_ULTRA_INRAM_TOTAL_QNG; + eep_config->max_tag_qng = + ASC_MAX_PCI_ULTRA_INRAM_TAG_QNG; + } else { + eep_config->cfg_msw |= 0x0800; + cfg_msw |= 0x0800; + AscSetChipCfgMsw(iop_base, cfg_msw); + eep_config->max_total_qng = ASC_MAX_PCI_INRAM_TOTAL_QNG; + eep_config->max_tag_qng = ASC_MAX_INRAM_TAG_QNG; + } + } else { + } + if (eep_config->max_total_qng < ASC_MIN_TOTAL_QNG) { + eep_config->max_total_qng = ASC_MIN_TOTAL_QNG; + } + if (eep_config->max_total_qng > ASC_MAX_TOTAL_QNG) { + eep_config->max_total_qng = ASC_MAX_TOTAL_QNG; + } + if (eep_config->max_tag_qng > eep_config->max_total_qng) { + eep_config->max_tag_qng = eep_config->max_total_qng; + } + if (eep_config->max_tag_qng < ASC_MIN_TAG_Q_PER_DVC) { + eep_config->max_tag_qng = ASC_MIN_TAG_Q_PER_DVC; + } + asc_dvc->max_total_qng = eep_config->max_total_qng; + if ((eep_config->use_cmd_qng & eep_config->disc_enable) != + eep_config->use_cmd_qng) { + eep_config->disc_enable = eep_config->use_cmd_qng; + warn_code |= ASC_WARN_CMD_QNG_CONFLICT; + } + if (asc_dvc->bus_type & (ASC_IS_ISA | ASC_IS_VL | ASC_IS_EISA)) { + asc_dvc->irq_no = AscGetChipIRQ(iop_base, asc_dvc->bus_type); + } + ASC_EEP_SET_CHIP_ID(eep_config, + ASC_EEP_GET_CHIP_ID(eep_config) & ASC_MAX_TID); + asc_dvc->cfg->chip_scsi_id = ASC_EEP_GET_CHIP_ID(eep_config); + if (((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == ASC_IS_PCI_ULTRA) && + !(asc_dvc->dvc_cntl & ASC_CNTL_SDTR_ENABLE_ULTRA)) { + asc_dvc->host_init_sdtr_index = ASC_SDTR_ULTRA_PCI_10MB_INDEX; + } + + for (i = 0; i <= ASC_MAX_TID; i++) { + asc_dvc->dos_int13_table[i] = eep_config->dos_int13_table[i]; + asc_dvc->cfg->max_tag_qng[i] = eep_config->max_tag_qng; + asc_dvc->cfg->sdtr_period_offset[i] = + (uchar)(ASC_DEF_SDTR_OFFSET | + (asc_dvc->host_init_sdtr_index << 4)); + } + eep_config->cfg_msw = AscGetChipCfgMsw(iop_base); + if (write_eep) { + if ((i = AscSetEEPConfig(iop_base, eep_config, + asc_dvc->bus_type)) != 0) { + ASC_PRINT1 + ("AscInitFromEEP: Failed to re-write EEPROM with %d errors.\n", + i); + } else { + ASC_PRINT + ("AscInitFromEEP: Successfully re-wrote EEPROM.\n"); + } + } + return (warn_code); +} + +static int __devinit AscInitGetConfig(asc_board_t *boardp) +{ + ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; + unsigned short warn_code = 0; + + asc_dvc->init_state = ASC_INIT_STATE_BEG_GET_CFG; + if (asc_dvc->err_code != 0) + return asc_dvc->err_code; + + if (AscFindSignature(asc_dvc->iop_base)) { + warn_code |= AscInitAscDvcVar(asc_dvc); + warn_code |= AscInitFromEEP(asc_dvc); + asc_dvc->init_state |= ASC_INIT_STATE_END_GET_CFG; + if (asc_dvc->scsi_reset_wait > ASC_MAX_SCSI_RESET_WAIT) + asc_dvc->scsi_reset_wait = ASC_MAX_SCSI_RESET_WAIT; + } else { + asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; + } + + switch (warn_code) { + case 0: /* No error */ + break; + case ASC_WARN_IO_PORT_ROTATE: + ASC_PRINT1("AscInitGetConfig: board %d: I/O port address " + "modified\n", boardp->id); + break; + case ASC_WARN_AUTO_CONFIG: + ASC_PRINT1("AscInitGetConfig: board %d: I/O port increment " + "switch enabled\n", boardp->id); + break; + case ASC_WARN_EEPROM_CHKSUM: + ASC_PRINT1("AscInitGetConfig: board %d: EEPROM checksum " + "error\n", boardp->id); + break; + case ASC_WARN_IRQ_MODIFIED: + ASC_PRINT1("AscInitGetConfig: board %d: IRQ modified\n", + boardp->id); + break; + case ASC_WARN_CMD_QNG_CONFLICT: + ASC_PRINT1("AscInitGetConfig: board %d: tag queuing enabled " + "w/o disconnects\n", boardp->id); + break; + default: + ASC_PRINT2("AscInitGetConfig: board %d: unknown warning: " + "0x%x\n", boardp->id, warn_code); + break; + } + + if (asc_dvc->err_code != 0) { + ASC_PRINT3("AscInitGetConfig: board %d error: init_state 0x%x, " + "err_code 0x%x\n", boardp->id, asc_dvc->init_state, + asc_dvc->err_code); + } + + return asc_dvc->err_code; +} + +static int __devinit AscInitSetConfig(struct pci_dev *pdev, asc_board_t *boardp) +{ + ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; + PortAddr iop_base = asc_dvc->iop_base; + unsigned short cfg_msw; + unsigned short warn_code = 0; + + asc_dvc->init_state |= ASC_INIT_STATE_BEG_SET_CFG; + if (asc_dvc->err_code != 0) + return asc_dvc->err_code; + if (!AscFindSignature(asc_dvc->iop_base)) { + asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; + return asc_dvc->err_code; + } + + cfg_msw = AscGetChipCfgMsw(iop_base); + if ((cfg_msw & ASC_CFG_MSW_CLR_MASK) != 0) { + cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; + warn_code |= ASC_WARN_CFG_MSW_RECOVER; + AscSetChipCfgMsw(iop_base, cfg_msw); + } + if ((asc_dvc->cfg->cmd_qng_enabled & asc_dvc->cfg->disc_enable) != + asc_dvc->cfg->cmd_qng_enabled) { + asc_dvc->cfg->disc_enable = asc_dvc->cfg->cmd_qng_enabled; + warn_code |= ASC_WARN_CMD_QNG_CONFLICT; + } + if (AscGetChipStatus(iop_base) & CSW_AUTO_CONFIG) { + warn_code |= ASC_WARN_AUTO_CONFIG; + } + if ((asc_dvc->bus_type & (ASC_IS_ISA | ASC_IS_VL)) != 0) { + if (AscSetChipIRQ(iop_base, asc_dvc->irq_no, asc_dvc->bus_type) + != asc_dvc->irq_no) { + asc_dvc->err_code |= ASC_IERR_SET_IRQ_NO; + } + } +#ifdef CONFIG_PCI + if (asc_dvc->bus_type & ASC_IS_PCI) { + cfg_msw &= 0xFFC0; + AscSetChipCfgMsw(iop_base, cfg_msw); + if ((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == ASC_IS_PCI_ULTRA) { + } else { + if ((pdev->device == PCI_DEVICE_ID_ASP_1200A) || + (pdev->device == PCI_DEVICE_ID_ASP_ABP940)) { + asc_dvc->bug_fix_cntl |= ASC_BUG_FIX_IF_NOT_DWB; + asc_dvc->bug_fix_cntl |= + ASC_BUG_FIX_ASYN_USE_SYN; + } + } + } else +#endif /* CONFIG_PCI */ + if (asc_dvc->bus_type == ASC_IS_ISAPNP) { + if (AscGetChipVersion(iop_base, asc_dvc->bus_type) + == ASC_CHIP_VER_ASYN_BUG) { + asc_dvc->bug_fix_cntl |= ASC_BUG_FIX_ASYN_USE_SYN; + } + } + if (AscSetChipScsiID(iop_base, asc_dvc->cfg->chip_scsi_id) != + asc_dvc->cfg->chip_scsi_id) { + asc_dvc->err_code |= ASC_IERR_SET_SCSI_ID; + } +#ifdef CONFIG_ISA + if (asc_dvc->bus_type & ASC_IS_ISA) { + AscSetIsaDmaChannel(iop_base, asc_dvc->cfg->isa_dma_channel); + AscSetIsaDmaSpeed(iop_base, asc_dvc->cfg->isa_dma_speed); + } +#endif /* CONFIG_ISA */ + + asc_dvc->init_state |= ASC_INIT_STATE_END_SET_CFG; + + switch (warn_code) { + case 0: /* No error. */ + break; + case ASC_WARN_IO_PORT_ROTATE: + ASC_PRINT1("AscInitSetConfig: board %d: I/O port address " + "modified\n", boardp->id); + break; + case ASC_WARN_AUTO_CONFIG: + ASC_PRINT1("AscInitSetConfig: board %d: I/O port increment " + "switch enabled\n", boardp->id); + break; + case ASC_WARN_EEPROM_CHKSUM: + ASC_PRINT1("AscInitSetConfig: board %d: EEPROM checksum " + "error\n", boardp->id); + break; + case ASC_WARN_IRQ_MODIFIED: + ASC_PRINT1("AscInitSetConfig: board %d: IRQ modified\n", + boardp->id); + break; + case ASC_WARN_CMD_QNG_CONFLICT: + ASC_PRINT1("AscInitSetConfig: board %d: tag queuing w/o " + "disconnects\n", + boardp->id); + break; + default: + ASC_PRINT2("AscInitSetConfig: board %d: unknown warning: " + "0x%x\n", boardp->id, warn_code); + break; + } + + if (asc_dvc->err_code != 0) { + ASC_PRINT3("AscInitSetConfig: board %d error: init_state 0x%x, " + "err_code 0x%x\n", boardp->id, asc_dvc->init_state, + asc_dvc->err_code); + } + + return asc_dvc->err_code; +} + +/* + * EEPROM Configuration. + * + * All drivers should use this structure to set the default EEPROM + * configuration. The BIOS now uses this structure when it is built. + * Additional structure information can be found in a_condor.h where + * the structure is defined. + * + * The *_Field_IsChar structs are needed to correct for endianness. + * These values are read from the board 16 bits at a time directly + * into the structs. Because some fields are char, the values will be + * in the wrong order. The *_Field_IsChar tells when to flip the + * bytes. Data read and written to PCI memory is automatically swapped + * on big-endian platforms so char fields read as words are actually being + * unswapped on big-endian platforms. + */ +static ADVEEP_3550_CONFIG Default_3550_EEPROM_Config __devinitdata = { + ADV_EEPROM_BIOS_ENABLE, /* cfg_lsw */ + 0x0000, /* cfg_msw */ + 0xFFFF, /* disc_enable */ + 0xFFFF, /* wdtr_able */ + 0xFFFF, /* sdtr_able */ + 0xFFFF, /* start_motor */ + 0xFFFF, /* tagqng_able */ + 0xFFFF, /* bios_scan */ + 0, /* scam_tolerant */ + 7, /* adapter_scsi_id */ + 0, /* bios_boot_delay */ + 3, /* scsi_reset_delay */ + 0, /* bios_id_lun */ + 0, /* termination */ + 0, /* reserved1 */ + 0xFFE7, /* bios_ctrl */ + 0xFFFF, /* ultra_able */ + 0, /* reserved2 */ + ASC_DEF_MAX_HOST_QNG, /* max_host_qng */ + ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */ + 0, /* dvc_cntl */ + 0, /* bug_fix */ + 0, /* serial_number_word1 */ + 0, /* serial_number_word2 */ + 0, /* serial_number_word3 */ + 0, /* check_sum */ + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} + , /* oem_name[16] */ + 0, /* dvc_err_code */ + 0, /* adv_err_code */ + 0, /* adv_err_addr */ + 0, /* saved_dvc_err_code */ + 0, /* saved_adv_err_code */ + 0, /* saved_adv_err_addr */ + 0 /* num_of_err */ +}; + +static ADVEEP_3550_CONFIG ADVEEP_3550_Config_Field_IsChar __devinitdata = { + 0, /* cfg_lsw */ + 0, /* cfg_msw */ + 0, /* -disc_enable */ + 0, /* wdtr_able */ + 0, /* sdtr_able */ + 0, /* start_motor */ + 0, /* tagqng_able */ + 0, /* bios_scan */ + 0, /* scam_tolerant */ + 1, /* adapter_scsi_id */ + 1, /* bios_boot_delay */ + 1, /* scsi_reset_delay */ + 1, /* bios_id_lun */ + 1, /* termination */ + 1, /* reserved1 */ + 0, /* bios_ctrl */ + 0, /* ultra_able */ + 0, /* reserved2 */ + 1, /* max_host_qng */ + 1, /* max_dvc_qng */ + 0, /* dvc_cntl */ + 0, /* bug_fix */ + 0, /* serial_number_word1 */ + 0, /* serial_number_word2 */ + 0, /* serial_number_word3 */ + 0, /* check_sum */ + {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} + , /* oem_name[16] */ + 0, /* dvc_err_code */ + 0, /* adv_err_code */ + 0, /* adv_err_addr */ + 0, /* saved_dvc_err_code */ + 0, /* saved_adv_err_code */ + 0, /* saved_adv_err_addr */ + 0 /* num_of_err */ +}; + +static ADVEEP_38C0800_CONFIG Default_38C0800_EEPROM_Config __devinitdata = { + ADV_EEPROM_BIOS_ENABLE, /* 00 cfg_lsw */ + 0x0000, /* 01 cfg_msw */ + 0xFFFF, /* 02 disc_enable */ + 0xFFFF, /* 03 wdtr_able */ + 0x4444, /* 04 sdtr_speed1 */ + 0xFFFF, /* 05 start_motor */ + 0xFFFF, /* 06 tagqng_able */ + 0xFFFF, /* 07 bios_scan */ + 0, /* 08 scam_tolerant */ + 7, /* 09 adapter_scsi_id */ + 0, /* bios_boot_delay */ + 3, /* 10 scsi_reset_delay */ + 0, /* bios_id_lun */ + 0, /* 11 termination_se */ + 0, /* termination_lvd */ + 0xFFE7, /* 12 bios_ctrl */ + 0x4444, /* 13 sdtr_speed2 */ + 0x4444, /* 14 sdtr_speed3 */ + ASC_DEF_MAX_HOST_QNG, /* 15 max_host_qng */ + ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */ + 0, /* 16 dvc_cntl */ + 0x4444, /* 17 sdtr_speed4 */ + 0, /* 18 serial_number_word1 */ + 0, /* 19 serial_number_word2 */ + 0, /* 20 serial_number_word3 */ + 0, /* 21 check_sum */ + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} + , /* 22-29 oem_name[16] */ + 0, /* 30 dvc_err_code */ + 0, /* 31 adv_err_code */ + 0, /* 32 adv_err_addr */ + 0, /* 33 saved_dvc_err_code */ + 0, /* 34 saved_adv_err_code */ + 0, /* 35 saved_adv_err_addr */ + 0, /* 36 reserved */ + 0, /* 37 reserved */ + 0, /* 38 reserved */ + 0, /* 39 reserved */ + 0, /* 40 reserved */ + 0, /* 41 reserved */ + 0, /* 42 reserved */ + 0, /* 43 reserved */ + 0, /* 44 reserved */ + 0, /* 45 reserved */ + 0, /* 46 reserved */ + 0, /* 47 reserved */ + 0, /* 48 reserved */ + 0, /* 49 reserved */ + 0, /* 50 reserved */ + 0, /* 51 reserved */ + 0, /* 52 reserved */ + 0, /* 53 reserved */ + 0, /* 54 reserved */ + 0, /* 55 reserved */ + 0, /* 56 cisptr_lsw */ + 0, /* 57 cisprt_msw */ + PCI_VENDOR_ID_ASP, /* 58 subsysvid */ + PCI_DEVICE_ID_38C0800_REV1, /* 59 subsysid */ + 0, /* 60 reserved */ + 0, /* 61 reserved */ + 0, /* 62 reserved */ + 0 /* 63 reserved */ +}; + +static ADVEEP_38C0800_CONFIG ADVEEP_38C0800_Config_Field_IsChar __devinitdata = { + 0, /* 00 cfg_lsw */ + 0, /* 01 cfg_msw */ + 0, /* 02 disc_enable */ + 0, /* 03 wdtr_able */ + 0, /* 04 sdtr_speed1 */ + 0, /* 05 start_motor */ + 0, /* 06 tagqng_able */ + 0, /* 07 bios_scan */ + 0, /* 08 scam_tolerant */ + 1, /* 09 adapter_scsi_id */ + 1, /* bios_boot_delay */ + 1, /* 10 scsi_reset_delay */ + 1, /* bios_id_lun */ + 1, /* 11 termination_se */ + 1, /* termination_lvd */ + 0, /* 12 bios_ctrl */ + 0, /* 13 sdtr_speed2 */ + 0, /* 14 sdtr_speed3 */ + 1, /* 15 max_host_qng */ + 1, /* max_dvc_qng */ + 0, /* 16 dvc_cntl */ + 0, /* 17 sdtr_speed4 */ + 0, /* 18 serial_number_word1 */ + 0, /* 19 serial_number_word2 */ + 0, /* 20 serial_number_word3 */ + 0, /* 21 check_sum */ + {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} + , /* 22-29 oem_name[16] */ + 0, /* 30 dvc_err_code */ + 0, /* 31 adv_err_code */ + 0, /* 32 adv_err_addr */ + 0, /* 33 saved_dvc_err_code */ + 0, /* 34 saved_adv_err_code */ + 0, /* 35 saved_adv_err_addr */ + 0, /* 36 reserved */ + 0, /* 37 reserved */ + 0, /* 38 reserved */ + 0, /* 39 reserved */ + 0, /* 40 reserved */ + 0, /* 41 reserved */ + 0, /* 42 reserved */ + 0, /* 43 reserved */ + 0, /* 44 reserved */ + 0, /* 45 reserved */ + 0, /* 46 reserved */ + 0, /* 47 reserved */ + 0, /* 48 reserved */ + 0, /* 49 reserved */ + 0, /* 50 reserved */ + 0, /* 51 reserved */ + 0, /* 52 reserved */ + 0, /* 53 reserved */ + 0, /* 54 reserved */ + 0, /* 55 reserved */ + 0, /* 56 cisptr_lsw */ + 0, /* 57 cisprt_msw */ + 0, /* 58 subsysvid */ + 0, /* 59 subsysid */ + 0, /* 60 reserved */ + 0, /* 61 reserved */ + 0, /* 62 reserved */ + 0 /* 63 reserved */ +}; + +static ADVEEP_38C1600_CONFIG Default_38C1600_EEPROM_Config __devinitdata = { + ADV_EEPROM_BIOS_ENABLE, /* 00 cfg_lsw */ + 0x0000, /* 01 cfg_msw */ + 0xFFFF, /* 02 disc_enable */ + 0xFFFF, /* 03 wdtr_able */ + 0x5555, /* 04 sdtr_speed1 */ + 0xFFFF, /* 05 start_motor */ + 0xFFFF, /* 06 tagqng_able */ + 0xFFFF, /* 07 bios_scan */ + 0, /* 08 scam_tolerant */ + 7, /* 09 adapter_scsi_id */ + 0, /* bios_boot_delay */ + 3, /* 10 scsi_reset_delay */ + 0, /* bios_id_lun */ + 0, /* 11 termination_se */ + 0, /* termination_lvd */ + 0xFFE7, /* 12 bios_ctrl */ + 0x5555, /* 13 sdtr_speed2 */ + 0x5555, /* 14 sdtr_speed3 */ + ASC_DEF_MAX_HOST_QNG, /* 15 max_host_qng */ + ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */ + 0, /* 16 dvc_cntl */ + 0x5555, /* 17 sdtr_speed4 */ + 0, /* 18 serial_number_word1 */ + 0, /* 19 serial_number_word2 */ + 0, /* 20 serial_number_word3 */ + 0, /* 21 check_sum */ + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} + , /* 22-29 oem_name[16] */ + 0, /* 30 dvc_err_code */ + 0, /* 31 adv_err_code */ + 0, /* 32 adv_err_addr */ + 0, /* 33 saved_dvc_err_code */ + 0, /* 34 saved_adv_err_code */ + 0, /* 35 saved_adv_err_addr */ + 0, /* 36 reserved */ + 0, /* 37 reserved */ + 0, /* 38 reserved */ + 0, /* 39 reserved */ + 0, /* 40 reserved */ + 0, /* 41 reserved */ + 0, /* 42 reserved */ + 0, /* 43 reserved */ + 0, /* 44 reserved */ + 0, /* 45 reserved */ + 0, /* 46 reserved */ + 0, /* 47 reserved */ + 0, /* 48 reserved */ + 0, /* 49 reserved */ + 0, /* 50 reserved */ + 0, /* 51 reserved */ + 0, /* 52 reserved */ + 0, /* 53 reserved */ + 0, /* 54 reserved */ + 0, /* 55 reserved */ + 0, /* 56 cisptr_lsw */ + 0, /* 57 cisprt_msw */ + PCI_VENDOR_ID_ASP, /* 58 subsysvid */ + PCI_DEVICE_ID_38C1600_REV1, /* 59 subsysid */ + 0, /* 60 reserved */ + 0, /* 61 reserved */ + 0, /* 62 reserved */ + 0 /* 63 reserved */ +}; + +static ADVEEP_38C1600_CONFIG ADVEEP_38C1600_Config_Field_IsChar __devinitdata = { + 0, /* 00 cfg_lsw */ + 0, /* 01 cfg_msw */ + 0, /* 02 disc_enable */ + 0, /* 03 wdtr_able */ + 0, /* 04 sdtr_speed1 */ + 0, /* 05 start_motor */ + 0, /* 06 tagqng_able */ + 0, /* 07 bios_scan */ + 0, /* 08 scam_tolerant */ + 1, /* 09 adapter_scsi_id */ + 1, /* bios_boot_delay */ + 1, /* 10 scsi_reset_delay */ + 1, /* bios_id_lun */ + 1, /* 11 termination_se */ + 1, /* termination_lvd */ + 0, /* 12 bios_ctrl */ + 0, /* 13 sdtr_speed2 */ + 0, /* 14 sdtr_speed3 */ + 1, /* 15 max_host_qng */ + 1, /* max_dvc_qng */ + 0, /* 16 dvc_cntl */ + 0, /* 17 sdtr_speed4 */ + 0, /* 18 serial_number_word1 */ + 0, /* 19 serial_number_word2 */ + 0, /* 20 serial_number_word3 */ + 0, /* 21 check_sum */ + {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} + , /* 22-29 oem_name[16] */ + 0, /* 30 dvc_err_code */ + 0, /* 31 adv_err_code */ + 0, /* 32 adv_err_addr */ + 0, /* 33 saved_dvc_err_code */ + 0, /* 34 saved_adv_err_code */ + 0, /* 35 saved_adv_err_addr */ + 0, /* 36 reserved */ + 0, /* 37 reserved */ + 0, /* 38 reserved */ + 0, /* 39 reserved */ + 0, /* 40 reserved */ + 0, /* 41 reserved */ + 0, /* 42 reserved */ + 0, /* 43 reserved */ + 0, /* 44 reserved */ + 0, /* 45 reserved */ + 0, /* 46 reserved */ + 0, /* 47 reserved */ + 0, /* 48 reserved */ + 0, /* 49 reserved */ + 0, /* 50 reserved */ + 0, /* 51 reserved */ + 0, /* 52 reserved */ + 0, /* 53 reserved */ + 0, /* 54 reserved */ + 0, /* 55 reserved */ + 0, /* 56 cisptr_lsw */ + 0, /* 57 cisprt_msw */ + 0, /* 58 subsysvid */ + 0, /* 59 subsysid */ + 0, /* 60 reserved */ + 0, /* 61 reserved */ + 0, /* 62 reserved */ + 0 /* 63 reserved */ +}; + +#ifdef CONFIG_PCI +/* + * Wait for EEPROM command to complete + */ +static void __devinit AdvWaitEEPCmd(AdvPortAddr iop_base) +{ + int eep_delay_ms; + + for (eep_delay_ms = 0; eep_delay_ms < ADV_EEP_DELAY_MS; eep_delay_ms++) { + if (AdvReadWordRegister(iop_base, IOPW_EE_CMD) & + ASC_EEP_CMD_DONE) { + break; + } + mdelay(1); + } + if ((AdvReadWordRegister(iop_base, IOPW_EE_CMD) & ASC_EEP_CMD_DONE) == + 0) + BUG(); +} + +/* + * Read the EEPROM from specified location + */ +static ushort __devinit AdvReadEEPWord(AdvPortAddr iop_base, int eep_word_addr) +{ + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, + ASC_EEP_CMD_READ | eep_word_addr); + AdvWaitEEPCmd(iop_base); + return AdvReadWordRegister(iop_base, IOPW_EE_DATA); +} + +/* + * Write the EEPROM from 'cfg_buf'. + */ +void __devinit +AdvSet3550EEPConfig(AdvPortAddr iop_base, ADVEEP_3550_CONFIG *cfg_buf) +{ + ushort *wbuf; + ushort addr, chksum; + ushort *charfields; + + wbuf = (ushort *)cfg_buf; + charfields = (ushort *)&ADVEEP_3550_Config_Field_IsChar; + chksum = 0; + + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE); + AdvWaitEEPCmd(iop_base); + + /* + * Write EEPROM from word 0 to word 20. + */ + for (addr = ADV_EEP_DVC_CFG_BEGIN; + addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) { + ushort word; + + if (*charfields++) { + word = cpu_to_le16(*wbuf); + } else { + word = *wbuf; + } + chksum += *wbuf; /* Checksum is calculated from word values. */ + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, + ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + mdelay(ADV_EEP_DELAY_MS); + } + + /* + * Write EEPROM checksum at word 21. + */ + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + wbuf++; + charfields++; + + /* + * Write EEPROM OEM name at words 22 to 29. + */ + for (addr = ADV_EEP_DVC_CTL_BEGIN; + addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) { + ushort word; + + if (*charfields++) { + word = cpu_to_le16(*wbuf); + } else { + word = *wbuf; + } + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, + ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + } + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE); + AdvWaitEEPCmd(iop_base); +} + +/* + * Write the EEPROM from 'cfg_buf'. + */ +void __devinit +AdvSet38C0800EEPConfig(AdvPortAddr iop_base, ADVEEP_38C0800_CONFIG *cfg_buf) +{ + ushort *wbuf; + ushort *charfields; + ushort addr, chksum; + + wbuf = (ushort *)cfg_buf; + charfields = (ushort *)&ADVEEP_38C0800_Config_Field_IsChar; + chksum = 0; + + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE); + AdvWaitEEPCmd(iop_base); + + /* + * Write EEPROM from word 0 to word 20. + */ + for (addr = ADV_EEP_DVC_CFG_BEGIN; + addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) { + ushort word; + + if (*charfields++) { + word = cpu_to_le16(*wbuf); + } else { + word = *wbuf; + } + chksum += *wbuf; /* Checksum is calculated from word values. */ + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, + ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + mdelay(ADV_EEP_DELAY_MS); + } + + /* + * Write EEPROM checksum at word 21. + */ + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + wbuf++; + charfields++; + + /* + * Write EEPROM OEM name at words 22 to 29. + */ + for (addr = ADV_EEP_DVC_CTL_BEGIN; + addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) { + ushort word; + + if (*charfields++) { + word = cpu_to_le16(*wbuf); + } else { + word = *wbuf; + } + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, + ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + } + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE); + AdvWaitEEPCmd(iop_base); +} + +/* + * Write the EEPROM from 'cfg_buf'. + */ +void __devinit +AdvSet38C1600EEPConfig(AdvPortAddr iop_base, ADVEEP_38C1600_CONFIG *cfg_buf) +{ + ushort *wbuf; + ushort *charfields; + ushort addr, chksum; + + wbuf = (ushort *)cfg_buf; + charfields = (ushort *)&ADVEEP_38C1600_Config_Field_IsChar; + chksum = 0; + + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE); + AdvWaitEEPCmd(iop_base); + + /* + * Write EEPROM from word 0 to word 20. + */ + for (addr = ADV_EEP_DVC_CFG_BEGIN; + addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) { + ushort word; + + if (*charfields++) { + word = cpu_to_le16(*wbuf); + } else { + word = *wbuf; + } + chksum += *wbuf; /* Checksum is calculated from word values. */ + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, + ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + mdelay(ADV_EEP_DELAY_MS); + } + + /* + * Write EEPROM checksum at word 21. + */ + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + wbuf++; + charfields++; + + /* + * Write EEPROM OEM name at words 22 to 29. + */ + for (addr = ADV_EEP_DVC_CTL_BEGIN; + addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) { + ushort word; + + if (*charfields++) { + word = cpu_to_le16(*wbuf); + } else { + word = *wbuf; + } + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, + ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + } + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE); + AdvWaitEEPCmd(iop_base); +} + +/* + * Read EEPROM configuration into the specified buffer. + * + * Return a checksum based on the EEPROM configuration read. + */ +static ushort __devinit +AdvGet3550EEPConfig(AdvPortAddr iop_base, ADVEEP_3550_CONFIG *cfg_buf) +{ + ushort wval, chksum; + ushort *wbuf; + int eep_addr; + ushort *charfields; + + charfields = (ushort *)&ADVEEP_3550_Config_Field_IsChar; + wbuf = (ushort *)cfg_buf; + chksum = 0; + + for (eep_addr = ADV_EEP_DVC_CFG_BEGIN; + eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) { + wval = AdvReadEEPWord(iop_base, eep_addr); + chksum += wval; /* Checksum is calculated from word values. */ + if (*charfields++) { + *wbuf = le16_to_cpu(wval); + } else { + *wbuf = wval; + } + } + /* Read checksum word. */ + *wbuf = AdvReadEEPWord(iop_base, eep_addr); + wbuf++; + charfields++; + + /* Read rest of EEPROM not covered by the checksum. */ + for (eep_addr = ADV_EEP_DVC_CTL_BEGIN; + eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) { + *wbuf = AdvReadEEPWord(iop_base, eep_addr); + if (*charfields++) { + *wbuf = le16_to_cpu(*wbuf); + } + } + return chksum; +} + +/* + * Read EEPROM configuration into the specified buffer. + * + * Return a checksum based on the EEPROM configuration read. + */ +static ushort __devinit +AdvGet38C0800EEPConfig(AdvPortAddr iop_base, ADVEEP_38C0800_CONFIG *cfg_buf) +{ + ushort wval, chksum; + ushort *wbuf; + int eep_addr; + ushort *charfields; + + charfields = (ushort *)&ADVEEP_38C0800_Config_Field_IsChar; + wbuf = (ushort *)cfg_buf; + chksum = 0; + + for (eep_addr = ADV_EEP_DVC_CFG_BEGIN; + eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) { + wval = AdvReadEEPWord(iop_base, eep_addr); + chksum += wval; /* Checksum is calculated from word values. */ + if (*charfields++) { + *wbuf = le16_to_cpu(wval); + } else { + *wbuf = wval; + } + } + /* Read checksum word. */ + *wbuf = AdvReadEEPWord(iop_base, eep_addr); + wbuf++; + charfields++; + + /* Read rest of EEPROM not covered by the checksum. */ + for (eep_addr = ADV_EEP_DVC_CTL_BEGIN; + eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) { + *wbuf = AdvReadEEPWord(iop_base, eep_addr); + if (*charfields++) { + *wbuf = le16_to_cpu(*wbuf); + } + } + return chksum; +} + +/* + * Read EEPROM configuration into the specified buffer. + * + * Return a checksum based on the EEPROM configuration read. + */ +static ushort __devinit +AdvGet38C1600EEPConfig(AdvPortAddr iop_base, ADVEEP_38C1600_CONFIG *cfg_buf) +{ + ushort wval, chksum; + ushort *wbuf; + int eep_addr; + ushort *charfields; + + charfields = (ushort *)&ADVEEP_38C1600_Config_Field_IsChar; + wbuf = (ushort *)cfg_buf; + chksum = 0; + + for (eep_addr = ADV_EEP_DVC_CFG_BEGIN; + eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) { + wval = AdvReadEEPWord(iop_base, eep_addr); + chksum += wval; /* Checksum is calculated from word values. */ + if (*charfields++) { + *wbuf = le16_to_cpu(wval); + } else { + *wbuf = wval; + } + } + /* Read checksum word. */ + *wbuf = AdvReadEEPWord(iop_base, eep_addr); + wbuf++; + charfields++; + + /* Read rest of EEPROM not covered by the checksum. */ + for (eep_addr = ADV_EEP_DVC_CTL_BEGIN; + eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) { + *wbuf = AdvReadEEPWord(iop_base, eep_addr); + if (*charfields++) { + *wbuf = le16_to_cpu(*wbuf); + } + } + return chksum; +} + +/* * Read the board's EEPROM configuration. Set fields in ADV_DVC_VAR and * ADV_DVC_CFG based on the EEPROM settings. The chip is stopped while * all of this is done. @@ -13234,834 +13761,124 @@ static int __devinit AdvInitFrom38C1600EEP(ADV_DVC_VAR *asc_dvc) } /* - * Read EEPROM configuration into the specified buffer. - * - * Return a checksum based on the EEPROM configuration read. - */ -static ushort __devinit -AdvGet3550EEPConfig(AdvPortAddr iop_base, ADVEEP_3550_CONFIG *cfg_buf) -{ - ushort wval, chksum; - ushort *wbuf; - int eep_addr; - ushort *charfields; - - charfields = (ushort *)&ADVEEP_3550_Config_Field_IsChar; - wbuf = (ushort *)cfg_buf; - chksum = 0; - - for (eep_addr = ADV_EEP_DVC_CFG_BEGIN; - eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) { - wval = AdvReadEEPWord(iop_base, eep_addr); - chksum += wval; /* Checksum is calculated from word values. */ - if (*charfields++) { - *wbuf = le16_to_cpu(wval); - } else { - *wbuf = wval; - } - } - /* Read checksum word. */ - *wbuf = AdvReadEEPWord(iop_base, eep_addr); - wbuf++; - charfields++; - - /* Read rest of EEPROM not covered by the checksum. */ - for (eep_addr = ADV_EEP_DVC_CTL_BEGIN; - eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) { - *wbuf = AdvReadEEPWord(iop_base, eep_addr); - if (*charfields++) { - *wbuf = le16_to_cpu(*wbuf); - } - } - return chksum; -} - -/* - * Read EEPROM configuration into the specified buffer. + * Initialize the ADV_DVC_VAR structure. * - * Return a checksum based on the EEPROM configuration read. - */ -static ushort __devinit -AdvGet38C0800EEPConfig(AdvPortAddr iop_base, ADVEEP_38C0800_CONFIG *cfg_buf) -{ - ushort wval, chksum; - ushort *wbuf; - int eep_addr; - ushort *charfields; - - charfields = (ushort *)&ADVEEP_38C0800_Config_Field_IsChar; - wbuf = (ushort *)cfg_buf; - chksum = 0; - - for (eep_addr = ADV_EEP_DVC_CFG_BEGIN; - eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) { - wval = AdvReadEEPWord(iop_base, eep_addr); - chksum += wval; /* Checksum is calculated from word values. */ - if (*charfields++) { - *wbuf = le16_to_cpu(wval); - } else { - *wbuf = wval; - } - } - /* Read checksum word. */ - *wbuf = AdvReadEEPWord(iop_base, eep_addr); - wbuf++; - charfields++; - - /* Read rest of EEPROM not covered by the checksum. */ - for (eep_addr = ADV_EEP_DVC_CTL_BEGIN; - eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) { - *wbuf = AdvReadEEPWord(iop_base, eep_addr); - if (*charfields++) { - *wbuf = le16_to_cpu(*wbuf); - } - } - return chksum; -} - -/* - * Read EEPROM configuration into the specified buffer. + * On failure set the ADV_DVC_VAR field 'err_code' and return ADV_ERROR. * - * Return a checksum based on the EEPROM configuration read. - */ -static ushort __devinit -AdvGet38C1600EEPConfig(AdvPortAddr iop_base, ADVEEP_38C1600_CONFIG *cfg_buf) -{ - ushort wval, chksum; - ushort *wbuf; - int eep_addr; - ushort *charfields; - - charfields = (ushort *)&ADVEEP_38C1600_Config_Field_IsChar; - wbuf = (ushort *)cfg_buf; - chksum = 0; - - for (eep_addr = ADV_EEP_DVC_CFG_BEGIN; - eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) { - wval = AdvReadEEPWord(iop_base, eep_addr); - chksum += wval; /* Checksum is calculated from word values. */ - if (*charfields++) { - *wbuf = le16_to_cpu(wval); - } else { - *wbuf = wval; - } - } - /* Read checksum word. */ - *wbuf = AdvReadEEPWord(iop_base, eep_addr); - wbuf++; - charfields++; - - /* Read rest of EEPROM not covered by the checksum. */ - for (eep_addr = ADV_EEP_DVC_CTL_BEGIN; - eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) { - *wbuf = AdvReadEEPWord(iop_base, eep_addr); - if (*charfields++) { - *wbuf = le16_to_cpu(*wbuf); - } - } - return chksum; -} - -/* - * Read the EEPROM from specified location - */ -static ushort __devinit AdvReadEEPWord(AdvPortAddr iop_base, int eep_word_addr) -{ - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, - ASC_EEP_CMD_READ | eep_word_addr); - AdvWaitEEPCmd(iop_base); - return AdvReadWordRegister(iop_base, IOPW_EE_DATA); -} - -/* - * Wait for EEPROM command to complete - */ -static void __devinit AdvWaitEEPCmd(AdvPortAddr iop_base) -{ - int eep_delay_ms; - - for (eep_delay_ms = 0; eep_delay_ms < ADV_EEP_DELAY_MS; eep_delay_ms++) { - if (AdvReadWordRegister(iop_base, IOPW_EE_CMD) & - ASC_EEP_CMD_DONE) { - break; - } - mdelay(1); - } - if ((AdvReadWordRegister(iop_base, IOPW_EE_CMD) & ASC_EEP_CMD_DONE) == - 0) - BUG(); - return; -} - -/* - * Write the EEPROM from 'cfg_buf'. - */ -void __devinit -AdvSet3550EEPConfig(AdvPortAddr iop_base, ADVEEP_3550_CONFIG *cfg_buf) -{ - ushort *wbuf; - ushort addr, chksum; - ushort *charfields; - - wbuf = (ushort *)cfg_buf; - charfields = (ushort *)&ADVEEP_3550_Config_Field_IsChar; - chksum = 0; - - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE); - AdvWaitEEPCmd(iop_base); - - /* - * Write EEPROM from word 0 to word 20. - */ - for (addr = ADV_EEP_DVC_CFG_BEGIN; - addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) { - ushort word; - - if (*charfields++) { - word = cpu_to_le16(*wbuf); - } else { - word = *wbuf; - } - chksum += *wbuf; /* Checksum is calculated from word values. */ - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, - ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - mdelay(ADV_EEP_DELAY_MS); - } - - /* - * Write EEPROM checksum at word 21. - */ - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - wbuf++; - charfields++; - - /* - * Write EEPROM OEM name at words 22 to 29. - */ - for (addr = ADV_EEP_DVC_CTL_BEGIN; - addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) { - ushort word; - - if (*charfields++) { - word = cpu_to_le16(*wbuf); - } else { - word = *wbuf; - } - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, - ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - } - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE); - AdvWaitEEPCmd(iop_base); - return; -} - -/* - * Write the EEPROM from 'cfg_buf'. - */ -void __devinit -AdvSet38C0800EEPConfig(AdvPortAddr iop_base, ADVEEP_38C0800_CONFIG *cfg_buf) -{ - ushort *wbuf; - ushort *charfields; - ushort addr, chksum; - - wbuf = (ushort *)cfg_buf; - charfields = (ushort *)&ADVEEP_38C0800_Config_Field_IsChar; - chksum = 0; - - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE); - AdvWaitEEPCmd(iop_base); - - /* - * Write EEPROM from word 0 to word 20. - */ - for (addr = ADV_EEP_DVC_CFG_BEGIN; - addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) { - ushort word; - - if (*charfields++) { - word = cpu_to_le16(*wbuf); - } else { - word = *wbuf; - } - chksum += *wbuf; /* Checksum is calculated from word values. */ - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, - ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - mdelay(ADV_EEP_DELAY_MS); - } - - /* - * Write EEPROM checksum at word 21. - */ - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - wbuf++; - charfields++; - - /* - * Write EEPROM OEM name at words 22 to 29. - */ - for (addr = ADV_EEP_DVC_CTL_BEGIN; - addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) { - ushort word; - - if (*charfields++) { - word = cpu_to_le16(*wbuf); - } else { - word = *wbuf; - } - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, - ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - } - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE); - AdvWaitEEPCmd(iop_base); - return; -} - -/* - * Write the EEPROM from 'cfg_buf'. + * For a non-fatal error return a warning code. If there are no warnings + * then 0 is returned. */ -void __devinit -AdvSet38C1600EEPConfig(AdvPortAddr iop_base, ADVEEP_38C1600_CONFIG *cfg_buf) +static int __devinit +AdvInitGetConfig(struct pci_dev *pdev, asc_board_t *boardp) { - ushort *wbuf; - ushort *charfields; - ushort addr, chksum; - - wbuf = (ushort *)cfg_buf; - charfields = (ushort *)&ADVEEP_38C1600_Config_Field_IsChar; - chksum = 0; - - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE); - AdvWaitEEPCmd(iop_base); - - /* - * Write EEPROM from word 0 to word 20. - */ - for (addr = ADV_EEP_DVC_CFG_BEGIN; - addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) { - ushort word; + ADV_DVC_VAR *asc_dvc = &boardp->dvc_var.adv_dvc_var; + unsigned short warn_code = 0; + AdvPortAddr iop_base = asc_dvc->iop_base; + u16 cmd; + int status; - if (*charfields++) { - word = cpu_to_le16(*wbuf); - } else { - word = *wbuf; - } - chksum += *wbuf; /* Checksum is calculated from word values. */ - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, - ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - mdelay(ADV_EEP_DELAY_MS); - } + asc_dvc->err_code = 0; /* - * Write EEPROM checksum at word 21. + * Save the state of the PCI Configuration Command Register + * "Parity Error Response Control" Bit. If the bit is clear (0), + * in AdvInitAsc3550/38C0800Driver() tell the microcode to ignore + * DMA parity errors. */ - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - wbuf++; - charfields++; + asc_dvc->cfg->control_flag = 0; + pci_read_config_word(pdev, PCI_COMMAND, &cmd); + if ((cmd & PCI_COMMAND_PARITY) == 0) + asc_dvc->cfg->control_flag |= CONTROL_FLAG_IGNORE_PERR; - /* - * Write EEPROM OEM name at words 22 to 29. - */ - for (addr = ADV_EEP_DVC_CTL_BEGIN; - addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) { - ushort word; + asc_dvc->cfg->lib_version = (ADV_LIB_VERSION_MAJOR << 8) | + ADV_LIB_VERSION_MINOR; + asc_dvc->cfg->chip_version = + AdvGetChipVersion(iop_base, asc_dvc->bus_type); - if (*charfields++) { - word = cpu_to_le16(*wbuf); - } else { - word = *wbuf; - } - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, - ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - } - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE); - AdvWaitEEPCmd(iop_base); - return; -} + ASC_DBG2(1, "AdvInitGetConfig: iopb_chip_id_1: 0x%x 0x%x\n", + (ushort)AdvReadByteRegister(iop_base, IOPB_CHIP_ID_1), + (ushort)ADV_CHIP_ID_BYTE); -/* - * AdvExeScsiQueue() - Send a request to the RISC microcode program. - * - * Allocate a carrier structure, point the carrier to the ADV_SCSI_REQ_Q, - * add the carrier to the ICQ (Initiator Command Queue), and tickle the - * RISC to notify it a new command is ready to be executed. - * - * If 'done_status' is not set to QD_DO_RETRY, then 'error_retry' will be - * set to SCSI_MAX_RETRY. - * - * Multi-byte fields in the ASC_SCSI_REQ_Q that are used by the microcode - * for DMA addresses or math operations are byte swapped to little-endian - * order. - * - * Return: - * ADV_SUCCESS(1) - The request was successfully queued. - * ADV_BUSY(0) - Resource unavailable; Retry again after pending - * request completes. - * ADV_ERROR(-1) - Invalid ADV_SCSI_REQ_Q request structure - * host IC error. - */ -static int AdvExeScsiQueue(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq) -{ - AdvPortAddr iop_base; - ADV_DCNT req_size; - ADV_PADDR req_paddr; - ADV_CARR_T *new_carrp; + ASC_DBG2(1, "AdvInitGetConfig: iopw_chip_id_0: 0x%x 0x%x\n", + (ushort)AdvReadWordRegister(iop_base, IOPW_CHIP_ID_0), + (ushort)ADV_CHIP_ID_WORD); /* - * The ADV_SCSI_REQ_Q 'target_id' field should never exceed ADV_MAX_TID. + * Reset the chip to start and allow register writes. */ - if (scsiq->target_id > ADV_MAX_TID) { - scsiq->host_status = QHSTA_M_INVALID_DEVICE; - scsiq->done_status = QD_WITH_ERROR; + if (AdvFindSignature(iop_base) == 0) { + asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; return ADV_ERROR; - } - - iop_base = asc_dvc->iop_base; - - /* - * Allocate a carrier ensuring at least one carrier always - * remains on the freelist and initialize fields. - */ - if ((new_carrp = asc_dvc->carr_freelist) == NULL) { - return ADV_BUSY; - } - asc_dvc->carr_freelist = (ADV_CARR_T *) - ADV_U32_TO_VADDR(le32_to_cpu(new_carrp->next_vpa)); - asc_dvc->carr_pending_cnt++; - - /* - * Set the carrier to be a stopper by setting 'next_vpa' - * to the stopper value. The current stopper will be changed - * below to point to the new stopper. - */ - new_carrp->next_vpa = cpu_to_le32(ASC_CQ_STOPPER); - - /* - * Clear the ADV_SCSI_REQ_Q done flag. - */ - scsiq->a_flag &= ~ADV_SCSIQ_DONE; - - req_size = sizeof(ADV_SCSI_REQ_Q); - req_paddr = DvcGetPhyAddr(asc_dvc, scsiq, (uchar *)scsiq, - (ADV_SDCNT *)&req_size, ADV_IS_SCSIQ_FLAG); - - BUG_ON(req_paddr & 31); - BUG_ON(req_size < sizeof(ADV_SCSI_REQ_Q)); - - /* Wait for assertion before making little-endian */ - req_paddr = cpu_to_le32(req_paddr); - - /* Save virtual and physical address of ADV_SCSI_REQ_Q and carrier. */ - scsiq->scsiq_ptr = cpu_to_le32(ADV_VADDR_TO_U32(scsiq)); - scsiq->scsiq_rptr = req_paddr; - - scsiq->carr_va = cpu_to_le32(ADV_VADDR_TO_U32(asc_dvc->icq_sp)); - /* - * Every ADV_CARR_T.carr_pa is byte swapped to little-endian - * order during initialization. - */ - scsiq->carr_pa = asc_dvc->icq_sp->carr_pa; - - /* - * Use the current stopper to send the ADV_SCSI_REQ_Q command to - * the microcode. The newly allocated stopper will become the new - * stopper. - */ - asc_dvc->icq_sp->areq_vpa = req_paddr; - - /* - * Set the 'next_vpa' pointer for the old stopper to be the - * physical address of the new stopper. The RISC can only - * follow physical addresses. - */ - asc_dvc->icq_sp->next_vpa = new_carrp->carr_pa; - - /* - * Set the host adapter stopper pointer to point to the new carrier. - */ - asc_dvc->icq_sp = new_carrp; - - if (asc_dvc->chip_type == ADV_CHIP_ASC3550 || - asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { + } else { /* - * Tickle the RISC to tell it to read its Command Queue Head pointer. + * The caller must set 'chip_type' to a valid setting. */ - AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_A); - if (asc_dvc->chip_type == ADV_CHIP_ASC3550) { - /* - * Clear the tickle value. In the ASC-3550 the RISC flag - * command 'clr_tickle_a' does not work unless the host - * value is cleared. - */ - AdvWriteByteRegister(iop_base, IOPB_TICKLE, - ADV_TICKLE_NOP); + if (asc_dvc->chip_type != ADV_CHIP_ASC3550 && + asc_dvc->chip_type != ADV_CHIP_ASC38C0800 && + asc_dvc->chip_type != ADV_CHIP_ASC38C1600) { + asc_dvc->err_code |= ASC_IERR_BAD_CHIPTYPE; + return ADV_ERROR; } - } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { + /* - * Notify the RISC a carrier is ready by writing the physical - * address of the new carrier stopper to the COMMA register. + * Reset Chip. */ - AdvWriteDWordRegister(iop_base, IOPDW_COMMA, - le32_to_cpu(new_carrp->carr_pa)); - } - - return ADV_SUCCESS; -} - -/* - * Reset SCSI Bus and purge all outstanding requests. - * - * Return Value: - * ADV_TRUE(1) - All requests are purged and SCSI Bus is reset. - * ADV_FALSE(0) - Microcode command failed. - * ADV_ERROR(-1) - Microcode command timed-out. Microcode or IC - * may be hung which requires driver recovery. - */ -static int AdvResetSB(ADV_DVC_VAR *asc_dvc) -{ - int status; - - /* - * Send the SCSI Bus Reset idle start idle command which asserts - * the SCSI Bus Reset signal. - */ - status = AdvSendIdleCmd(asc_dvc, (ushort)IDLE_CMD_SCSI_RESET_START, 0L); - if (status != ADV_TRUE) { - return status; - } - - /* - * Delay for the specified SCSI Bus Reset hold time. - * - * The hold time delay is done on the host because the RISC has no - * microsecond accurate timer. - */ - udelay(ASC_SCSI_RESET_HOLD_TIME_US); - - /* - * Send the SCSI Bus Reset end idle command which de-asserts - * the SCSI Bus Reset signal and purges any pending requests. - */ - status = AdvSendIdleCmd(asc_dvc, (ushort)IDLE_CMD_SCSI_RESET_END, 0L); - if (status != ADV_TRUE) { - return status; - } - - mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ - - return status; -} - -/* - * Reset chip and SCSI Bus. - * - * Return Value: - * ADV_TRUE(1) - Chip re-initialization and SCSI Bus Reset successful. - * ADV_FALSE(0) - Chip re-initialization and SCSI Bus Reset failure. - */ -static int AdvResetChipAndSB(ADV_DVC_VAR *asc_dvc) -{ - int status; - ushort wdtr_able, sdtr_able, tagqng_able; - ushort ppr_able = 0; - uchar tid, max_cmd[ADV_MAX_TID + 1]; - AdvPortAddr iop_base; - ushort bios_sig; - - iop_base = asc_dvc->iop_base; - - /* - * Save current per TID negotiated values. - */ - AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able); - AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able); - if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { - AdvReadWordLram(iop_base, ASC_MC_PPR_ABLE, ppr_able); - } - AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able); - for (tid = 0; tid <= ADV_MAX_TID; tid++) { - AdvReadByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + tid, - max_cmd[tid]); - } - - /* - * Force the AdvInitAsc3550/38C0800Driver() function to - * perform a SCSI Bus Reset by clearing the BIOS signature word. - * The initialization functions assumes a SCSI Bus Reset is not - * needed if the BIOS signature word is present. - */ - AdvReadWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, bios_sig); - AdvWriteWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, 0); - - /* - * Stop chip and reset it. - */ - AdvWriteWordRegister(iop_base, IOPW_RISC_CSR, ADV_RISC_CSR_STOP); - AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, ADV_CTRL_REG_CMD_RESET); - mdelay(100); - AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, - ADV_CTRL_REG_CMD_WR_IO_REG); - - /* - * Reset Adv Library error code, if any, and try - * re-initializing the chip. - */ - asc_dvc->err_code = 0; - if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { - status = AdvInitAsc38C1600Driver(asc_dvc); - } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { - status = AdvInitAsc38C0800Driver(asc_dvc); - } else { - status = AdvInitAsc3550Driver(asc_dvc); - } - - /* Translate initialization return value to status value. */ - if (status == 0) { - status = ADV_TRUE; - } else { - status = ADV_FALSE; - } - - /* - * Restore the BIOS signature word. - */ - AdvWriteWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, bios_sig); + AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, + ADV_CTRL_REG_CMD_RESET); + mdelay(100); + AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, + ADV_CTRL_REG_CMD_WR_IO_REG); - /* - * Restore per TID negotiated values. - */ - AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able); - AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able); - if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { - AdvWriteWordLram(iop_base, ASC_MC_PPR_ABLE, ppr_able); - } - AdvWriteWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able); - for (tid = 0; tid <= ADV_MAX_TID; tid++) { - AdvWriteByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + tid, - max_cmd[tid]); + if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { + status = AdvInitFrom38C1600EEP(asc_dvc); + } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { + status = AdvInitFrom38C0800EEP(asc_dvc); + } else { + status = AdvInitFrom3550EEP(asc_dvc); + } + warn_code |= status; } - return status; -} - -/* - * Adv Library Interrupt Service Routine - * - * This function is called by a driver's interrupt service routine. - * The function disables and re-enables interrupts. - * - * When a microcode idle command is completed, the ADV_DVC_VAR - * 'idle_cmd_done' field is set to ADV_TRUE. - * - * Note: AdvISR() can be called when interrupts are disabled or even - * when there is no hardware interrupt condition present. It will - * always check for completed idle commands and microcode requests. - * This is an important feature that shouldn't be changed because it - * allows commands to be completed from polling mode loops. - * - * Return: - * ADV_TRUE(1) - interrupt was pending - * ADV_FALSE(0) - no interrupt was pending - */ -static int AdvISR(ADV_DVC_VAR *asc_dvc) -{ - AdvPortAddr iop_base; - uchar int_stat; - ushort target_bit; - ADV_CARR_T *free_carrp; - ADV_VADDR irq_next_vpa; - ADV_SCSI_REQ_Q *scsiq; - - iop_base = asc_dvc->iop_base; - - /* Reading the register clears the interrupt. */ - int_stat = AdvReadByteRegister(iop_base, IOPB_INTR_STATUS_REG); - - if ((int_stat & (ADV_INTR_STATUS_INTRA | ADV_INTR_STATUS_INTRB | - ADV_INTR_STATUS_INTRC)) == 0) { - return ADV_FALSE; + if (warn_code != 0) { + ASC_PRINT2("AdvInitGetConfig: board %d: warning: 0x%x\n", + boardp->id, warn_code); } - /* - * Notify the driver of an asynchronous microcode condition by - * calling the adv_async_callback function. The function - * is passed the microcode ASC_MC_INTRB_CODE byte value. - */ - if (int_stat & ADV_INTR_STATUS_INTRB) { - uchar intrb_code; - - AdvReadByteLram(iop_base, ASC_MC_INTRB_CODE, intrb_code); - - if (asc_dvc->chip_type == ADV_CHIP_ASC3550 || - asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { - if (intrb_code == ADV_ASYNC_CARRIER_READY_FAILURE && - asc_dvc->carr_pending_cnt != 0) { - AdvWriteByteRegister(iop_base, IOPB_TICKLE, - ADV_TICKLE_A); - if (asc_dvc->chip_type == ADV_CHIP_ASC3550) { - AdvWriteByteRegister(iop_base, - IOPB_TICKLE, - ADV_TICKLE_NOP); - } - } - } - - adv_async_callback(asc_dvc, intrb_code); + if (asc_dvc->err_code) { + ASC_PRINT2("AdvInitGetConfig: board %d error: err_code 0x%x\n", + boardp->id, asc_dvc->err_code); } - /* - * Check if the IRQ stopper carrier contains a completed request. - */ - while (((irq_next_vpa = - le32_to_cpu(asc_dvc->irq_sp->next_vpa)) & ASC_RQ_DONE) != 0) { - /* - * Get a pointer to the newly completed ADV_SCSI_REQ_Q structure. - * The RISC will have set 'areq_vpa' to a virtual address. - * - * The firmware will have copied the ASC_SCSI_REQ_Q.scsiq_ptr - * field to the carrier ADV_CARR_T.areq_vpa field. The conversion - * below complements the conversion of ASC_SCSI_REQ_Q.scsiq_ptr' - * in AdvExeScsiQueue(). - */ - scsiq = (ADV_SCSI_REQ_Q *) - ADV_U32_TO_VADDR(le32_to_cpu(asc_dvc->irq_sp->areq_vpa)); - - /* - * Request finished with good status and the queue was not - * DMAed to host memory by the firmware. Set all status fields - * to indicate good status. - */ - if ((irq_next_vpa & ASC_RQ_GOOD) != 0) { - scsiq->done_status = QD_NO_ERROR; - scsiq->host_status = scsiq->scsi_status = 0; - scsiq->data_cnt = 0L; - } - - /* - * Advance the stopper pointer to the next carrier - * ignoring the lower four bits. Free the previous - * stopper carrier. - */ - free_carrp = asc_dvc->irq_sp; - asc_dvc->irq_sp = (ADV_CARR_T *) - ADV_U32_TO_VADDR(ASC_GET_CARRP(irq_next_vpa)); - - free_carrp->next_vpa = - cpu_to_le32(ADV_VADDR_TO_U32(asc_dvc->carr_freelist)); - asc_dvc->carr_freelist = free_carrp; - asc_dvc->carr_pending_cnt--; - - target_bit = ADV_TID_TO_TIDMASK(scsiq->target_id); - - /* - * Clear request microcode control flag. - */ - scsiq->cntl = 0; - - /* - * Notify the driver of the completed request by passing - * the ADV_SCSI_REQ_Q pointer to its callback function. - */ - scsiq->a_flag |= ADV_SCSIQ_DONE; - adv_isr_callback(asc_dvc, scsiq); - /* - * Note: After the driver callback function is called, 'scsiq' - * can no longer be referenced. - * - * Fall through and continue processing other completed - * requests... - */ - } - return ADV_TRUE; + return asc_dvc->err_code; } +#endif -/* - * Send an idle command to the chip and wait for completion. - * - * Command completion is polled for once per microsecond. - * - * The function can be called from anywhere including an interrupt handler. - * But the function is not re-entrant, so it uses the DvcEnter/LeaveCritical() - * functions to prevent reentrancy. - * - * Return Values: - * ADV_TRUE - command completed successfully - * ADV_FALSE - command failed - * ADV_ERROR - command timed out - */ -static int -AdvSendIdleCmd(ADV_DVC_VAR *asc_dvc, - ushort idle_cmd, ADV_DCNT idle_cmd_parameter) -{ - int result; - ADV_DCNT i, j; - AdvPortAddr iop_base; - - iop_base = asc_dvc->iop_base; - - /* - * Clear the idle command status which is set by the microcode - * to a non-zero value to indicate when the command is completed. - * The non-zero result is one of the IDLE_CMD_STATUS_* values - */ - AdvWriteWordLram(iop_base, ASC_MC_IDLE_CMD_STATUS, (ushort)0); - +static struct scsi_host_template advansys_template = { + .proc_name = DRV_NAME, +#ifdef CONFIG_PROC_FS + .proc_info = advansys_proc_info, +#endif + .name = DRV_NAME, + .info = advansys_info, + .queuecommand = advansys_queuecommand, + .eh_bus_reset_handler = advansys_reset, + .bios_param = advansys_biosparam, + .slave_configure = advansys_slave_configure, /* - * Write the idle command value after the idle command parameter - * has been written to avoid a race condition. If the order is not - * followed, the microcode may process the idle command before the - * parameters have been written to LRAM. + * Because the driver may control an ISA adapter 'unchecked_isa_dma' + * must be set. The flag will be cleared in advansys_board_found + * for non-ISA adapters. */ - AdvWriteDWordLramNoSwap(iop_base, ASC_MC_IDLE_CMD_PARAMETER, - cpu_to_le32(idle_cmd_parameter)); - AdvWriteWordLram(iop_base, ASC_MC_IDLE_CMD, idle_cmd); - + .unchecked_isa_dma = 1, /* - * Tickle the RISC to tell it to process the idle command. + * All adapters controlled by this driver are capable of large + * scatter-gather lists. According to the mid-level SCSI documentation + * this obviates any performance gain provided by setting + * 'use_clustering'. But empirically while CPU utilization is increased + * by enabling clustering, I/O throughput increases as well. */ - AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_B); - if (asc_dvc->chip_type == ADV_CHIP_ASC3550) { - /* - * Clear the tickle value. In the ASC-3550 the RISC flag - * command 'clr_tickle_b' does not work unless the host - * value is cleared. - */ - AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_NOP); - } - - /* Wait for up to 100 millisecond for the idle command to timeout. */ - for (i = 0; i < SCSI_WAIT_100_MSEC; i++) { - /* Poll once each microsecond for command completion. */ - for (j = 0; j < SCSI_US_PER_MSEC; j++) { - AdvReadWordLram(iop_base, ASC_MC_IDLE_CMD_STATUS, - result); - if (result != 0) - return result; - udelay(1); - } - } - - BUG(); /* The idle command should never timeout. */ - return ADV_ERROR; -} + .use_clustering = ENABLE_CLUSTERING, +}; static int __devinit advansys_wide_init_chip(asc_board_t *boardp, ADV_DVC_VAR *adv_dvc_varp) -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* Re: [PATCH 16/22] advansys: Eliminate prototypes 2007-09-09 14:56 ` [PATCH 16/22] advansys: Eliminate prototypes Matthew Wilcox @ 2007-09-09 15:29 ` Jeff Garzik 2007-09-09 17:48 ` Matthew Wilcox 2007-09-15 14:39 ` James Bottomley 1 sibling, 1 reply; 52+ messages in thread From: Jeff Garzik @ 2007-09-09 15:29 UTC (permalink / raw) To: Matthew Wilcox; +Cc: linux-scsi, Linux Kernel Mailing List Matthew Wilcox wrote: > Rearrange a lot of the functions in the file to get rid of all the forward > declarations. What thoughts, if any, have been given to post-patch code arrangement, besides eliminating prototypes? This always struck me as a counterproductive exercise when taken by itself. Sure, prototypes were eliminated, but was code packed together in an efficient way afterwards? Ideally hot path code should be close together, ditto for various other things like error handling code. Without further explanation or details about your post-patch analysis, how do we even know the new code arrangement doesn't negatively impact i-cache overall? Jeff ^ permalink raw reply [flat|nested] 52+ messages in thread
* Re: [PATCH 16/22] advansys: Eliminate prototypes 2007-09-09 15:29 ` Jeff Garzik @ 2007-09-09 17:48 ` Matthew Wilcox 0 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 17:48 UTC (permalink / raw) To: Jeff Garzik; +Cc: linux-scsi, Linux Kernel Mailing List On Sun, Sep 09, 2007 at 11:29:34AM -0400, Jeff Garzik wrote: > What thoughts, if any, have been given to post-patch code arrangement, > besides eliminating prototypes? > This always struck me as a counterproductive exercise when taken by > itself. Eliminating prototypes saves me from an extra go round of the edit-compile testcycle when I change the signature of a function. It probably doesn't matter to you, but it adds a small amount of annoyance to my day. > Sure, prototypes were eliminated, but was code packed together > in an efficient way afterwards? Ideally hot path code should be close > together, ditto for various other things like error handling code. I tried to place functions close together that seemed like they were called together and called from each other. It's hard to know, of course, because GCC will make its own decisions about inlining, for example. At the end of the day, this is an NP problem. I remmber Nat writing grope and using simulated annealing to solve the problem. > Without further explanation or details about your post-patch analysis, > how do we even know the new code arrangement doesn't negatively impact > i-cache overall? We don't, but the new layout is more likely to be good than bad, given how I did the rearrangement (delete prototypes, try to compile. Move called function to before its first caller. Repeat). Plus, with all the other changes I'm making, there's a serious reduction in driver size. I haven't compared i-cache sizes specifically, but I'm mostly removing code, so it should be better. -- Intel are signing my paycheques ... these opinions are still mine "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." ^ permalink raw reply [flat|nested] 52+ messages in thread
* Re: [PATCH 16/22] advansys: Eliminate prototypes 2007-09-09 14:56 ` [PATCH 16/22] advansys: Eliminate prototypes Matthew Wilcox 2007-09-09 15:29 ` Jeff Garzik @ 2007-09-15 14:39 ` James Bottomley 2007-09-16 15:31 ` Matthew Wilcox ` (18 more replies) 1 sibling, 19 replies; 52+ messages in thread From: James Bottomley @ 2007-09-15 14:39 UTC (permalink / raw) To: Matthew Wilcox; +Cc: linux-scsi On Sun, 2007-09-09 at 08:56 -0600, Matthew Wilcox wrote: > Rearrange a lot of the functions in the file to get rid of all the > forward > declarations. I get a compile failure at this point in your patch sequence: CC [M] drivers/scsi/advansys.o drivers/scsi/advansys.c:72:2: warning: #warning this driver is still not properly converted to the DMA API drivers/scsi/advansys.c: In function 'AscGetChipBiosAddress': drivers/scsi/advansys.c:11536: error: implicit declaration of function 'AscGetEisaChipCfg' drivers/scsi/advansys.c: At top level: drivers/scsi/advansys.c:11555: error: conflicting types for 'AscGetEisaChipCfg' drivers/scsi/advansys.c:11536: error: previous implicit declaration of 'AscGetEisaChipCfg' was here drivers/scsi/advansys.c: In function 'AscSetIsaDmaSpeed': drivers/scsi/advansys.c:11750: error: implicit declaration of function 'AscGetIsaDmaSpeed' drivers/scsi/advansys.c: At top level: drivers/scsi/advansys.c:11754: error: conflicting types for 'AscGetIsaDmaSpeed' drivers/scsi/advansys.c:11750: error: previous implicit declaration of 'AscGetIsaDmaSpeed' was here make[2]: *** [drivers/scsi/advansys.o] Error 1 make[1]: *** [drivers/scsi] Error 2 make: *** [drivers] Error 2 I've put 1-15 in .. could you rebase against scsi-misc and eliminate this problem? Thanks, James ^ permalink raw reply [flat|nested] 52+ messages in thread
* Re: [PATCH 16/22] advansys: Eliminate prototypes 2007-09-15 14:39 ` James Bottomley @ 2007-09-16 15:31 ` Matthew Wilcox 2007-09-16 22:41 ` FUJITA Tomonori 2007-09-16 15:37 ` [PATCH 01/17] " Matthew Wilcox ` (17 subsequent siblings) 18 siblings, 1 reply; 52+ messages in thread From: Matthew Wilcox @ 2007-09-16 15:31 UTC (permalink / raw) To: James Bottomley; +Cc: linux-scsi On Sat, Sep 15, 2007 at 09:39:05AM -0500, James Bottomley wrote: > I get a compile failure at this point in your patch sequence: Thanks. I'd been compiling with CONFIG_ISA=n, so hadn't spotted these two problems. I've set it back to Y now. > I've put 1-15 in .. could you rebase against scsi-misc and eliminate > this problem? Yup. I've written some more patches since, and I'll include those too. -- Intel are signing my paycheques ... these opinions are still mine "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." ^ permalink raw reply [flat|nested] 52+ messages in thread
* Re: [PATCH 16/22] advansys: Eliminate prototypes 2007-09-16 15:31 ` Matthew Wilcox @ 2007-09-16 22:41 ` FUJITA Tomonori 2007-09-16 23:03 ` Matthew Wilcox 0 siblings, 1 reply; 52+ messages in thread From: FUJITA Tomonori @ 2007-09-16 22:41 UTC (permalink / raw) To: matthew; +Cc: James.Bottomley, linux-scsi, fujita.tomonori On Sun, 16 Sep 2007 09:31:34 -0600 Matthew Wilcox <matthew@wil.cx> wrote: > On Sat, Sep 15, 2007 at 09:39:05AM -0500, James Bottomley wrote: > > I get a compile failure at this point in your patch sequence: > > Thanks. I'd been compiling with CONFIG_ISA=n, so hadn't spotted these > two problems. I've set it back to Y now. If I compile your latest patchset with CONFIG_ISA=n, I got: drivers/built-in.o: In function `advansys_init': advansys.c:(.init.text+0x3edc): undefined reference to `isa_register_driver' advansys.c:(.init.text+0x3efb): undefined reference to `isa_register_driver' advansys.c:(.init.text+0x3f22): undefined reference to `isa_unregister_driver' advansys.c:(.init.text+0x3f36): undefined reference to `isa_unregister_driver' drivers/built-in.o: In function `advansys_exit': advansys.c:(.exit.text+0x210): undefined reference to `isa_unregister_driver' advansys.c:(.exit.text+0x21a): undefined reference to `isa_unregister_driver' make[1]: *** [.tmp_vmlinux1] Error 1 make[1]: Leaving directory `/home/fujita/git/linux-2.6' make: *** [debian/stamp-build-kernel] Error 2 Is this already fixed like this? - From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Subject: [PATCH] isa: add fake isa_register_driver and isa_unregister_driver add fake isa_register_driver and isa_unregister_driver for !CONFIG_ISA case. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> --- include/linux/isa.h | 10 ++++++++++ 1 files changed, 10 insertions(+), 0 deletions(-) diff --git a/include/linux/isa.h b/include/linux/isa.h index 1b85533..6d3aaaf 100644 --- a/include/linux/isa.h +++ b/include/linux/isa.h @@ -22,7 +22,17 @@ struct isa_driver { #define to_isa_driver(x) container_of((x), struct isa_driver, driver) +#ifdef CONFIG_ISA int isa_register_driver(struct isa_driver *, unsigned int); void isa_unregister_driver(struct isa_driver *); +#else +static inline int isa_register_driver(struct isa_driver *idrv, unsigned int n) +{ + return 0; +} +static inline void isa_unregister_driver(struct isa_driver *idrv) +{ +} +#endif #endif /* __LINUX_ISA_H */ -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* Re: [PATCH 16/22] advansys: Eliminate prototypes 2007-09-16 22:41 ` FUJITA Tomonori @ 2007-09-16 23:03 ` Matthew Wilcox 2007-09-16 23:17 ` FUJITA Tomonori 0 siblings, 1 reply; 52+ messages in thread From: Matthew Wilcox @ 2007-09-16 23:03 UTC (permalink / raw) To: FUJITA Tomonori; +Cc: James.Bottomley, linux-scsi, fujita.tomonori On Mon, Sep 17, 2007 at 07:41:06AM +0900, FUJITA Tomonori wrote: > On Sun, 16 Sep 2007 09:31:34 -0600 > Matthew Wilcox <matthew@wil.cx> wrote: > > > On Sat, Sep 15, 2007 at 09:39:05AM -0500, James Bottomley wrote: > > > I get a compile failure at this point in your patch sequence: > > > > Thanks. I'd been compiling with CONFIG_ISA=n, so hadn't spotted these > > two problems. I've set it back to Y now. > > If I compile your latest patchset with CONFIG_ISA=n, I got: > > drivers/built-in.o: In function `advansys_init': > advansys.c:(.init.text+0x3efb): undefined reference to `isa_register_driver' > advansys.c:(.init.text+0x3f22): undefined reference to `isa_unregister_driver' Fixed by http://marc.info/?l=linux-kernel&m=118780055118323&w=2 which I thought was in -mm, but I can't find it. I've just reset it to Linus & Andrew. Thanks for mentioning it. Now I'm back home, I'll add your sg patch to my tree. I'd forgotten about it ... -- Intel are signing my paycheques ... these opinions are still mine "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." ^ permalink raw reply [flat|nested] 52+ messages in thread
* Re: [PATCH 16/22] advansys: Eliminate prototypes 2007-09-16 23:03 ` Matthew Wilcox @ 2007-09-16 23:17 ` FUJITA Tomonori 2007-09-17 12:21 ` Matthew Wilcox 0 siblings, 1 reply; 52+ messages in thread From: FUJITA Tomonori @ 2007-09-16 23:17 UTC (permalink / raw) To: matthew; +Cc: tomof, James.Bottomley, linux-scsi, fujita.tomonori On Sun, 16 Sep 2007 17:03:50 -0600 Matthew Wilcox <matthew@wil.cx> wrote: > On Mon, Sep 17, 2007 at 07:41:06AM +0900, FUJITA Tomonori wrote: > > On Sun, 16 Sep 2007 09:31:34 -0600 > > Matthew Wilcox <matthew@wil.cx> wrote: > > > > > On Sat, Sep 15, 2007 at 09:39:05AM -0500, James Bottomley wrote: > > > > I get a compile failure at this point in your patch sequence: > > > > > > Thanks. I'd been compiling with CONFIG_ISA=n, so hadn't spotted these > > > two problems. I've set it back to Y now. > > > > If I compile your latest patchset with CONFIG_ISA=n, I got: > > > > drivers/built-in.o: In function `advansys_init': > > advansys.c:(.init.text+0x3efb): undefined reference to `isa_register_driver' > > advansys.c:(.init.text+0x3f22): undefined reference to `isa_unregister_driver' > > Fixed by http://marc.info/?l=linux-kernel&m=118780055118323&w=2 which I > thought was in -mm, but I can't find it. I've just reset it to Linus & > Andrew. Thanks for mentioning it. Oh, I see. > Now I'm back home, I'll add your sg patch to my tree. I'd forgotten > about it ... I updated the previous patch for your latest patchset. I removed the sg chaining support so you can send it to scsi-misc now. Just a one-line patch is necessary for the sg chaining support. It'll be push to mainline via Jens' tree. From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Subject: [PATCH] advansys: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> --- drivers/scsi/advansys.c | 83 +++++++++++++--------------------------------- 1 files changed, 24 insertions(+), 59 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index bd5bbc9..bc24f74 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -4301,15 +4301,7 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, static void asc_scsi_done(struct scsi_cmnd *scp) { - struct asc_board *boardp = shost_priv(scp->device->host); - - if (scp->use_sg) - dma_unmap_sg(boardp->dev, - (struct scatterlist *)scp->request_buffer, - scp->use_sg, scp->sc_data_direction); - else if (scp->request_bufflen) - dma_unmap_single(boardp->dev, scp->SCp.dma_handle, - scp->request_bufflen, scp->sc_data_direction); + scsi_dma_unmap(scp); ASC_STATS(scp->device->host, done); @@ -8210,11 +8202,11 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) * then return the number of underrun bytes. */ resid_cnt = le32_to_cpu(scsiqp->data_cnt); - if (scp->request_bufflen != 0 && resid_cnt != 0 && - resid_cnt <= scp->request_bufflen) { + if (scsi_bufflen(scp) != 0 && resid_cnt != 0 && + resid_cnt <= scsi_bufflen(scp)) { ASC_DBG(1, "underrun condition %lu bytes\n", (ulong)resid_cnt); - scp->resid = resid_cnt; + scsi_set_resid(scp, resid_cnt); } break; @@ -9877,6 +9869,7 @@ static int advansys_slave_configure(struct scsi_device *sdev) static int asc_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, struct asc_scsi_q *asc_scsi_q) { + int use_sg; memset(asc_scsi_q, 0, sizeof(*asc_scsi_q)); /* @@ -9919,40 +9912,28 @@ static int asc_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, * Build ASC_SCSI_Q for a contiguous buffer or a scatter-gather * buffer command. */ - if (scp->use_sg == 0) { + use_sg = scsi_dma_map(scp); + if (use_sg == 0) { /* * CDB request of single contiguous buffer. */ ASC_STATS(scp->device->host, cont_cnt); - scp->SCp.dma_handle = scp->request_bufflen ? - dma_map_single(boardp->dev, scp->request_buffer, - scp->request_bufflen, - scp->sc_data_direction) : 0; - asc_scsi_q->q1.data_addr = cpu_to_le32(scp->SCp.dma_handle); - asc_scsi_q->q1.data_cnt = cpu_to_le32(scp->request_bufflen); + scp->SCp.dma_handle = 0; ASC_STATS_ADD(scp->device->host, cont_xfer, ASC_CEILING(scp->request_bufflen, 512)); - asc_scsi_q->q1.sg_queue_cnt = 0; - asc_scsi_q->sg_head = NULL; } else { /* * CDB scatter-gather request list. */ int sgcnt; - int use_sg; struct scatterlist *slp; struct asc_sg_head *asc_sg_head; - slp = (struct scatterlist *)scp->request_buffer; - use_sg = dma_map_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); - if (use_sg > scp->device->host->sg_tablesize) { scmd_printk(KERN_ERR, scp, "use_sg %d > " "sg_tablesize %d\n", use_sg, scp->device->host->sg_tablesize); - dma_unmap_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); + scsi_dma_unmap(scp); scp->result = HOST_BYTE(DID_ERROR); return ASC_ERROR; } @@ -9962,8 +9943,7 @@ static int asc_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, asc_sg_head = kzalloc(sizeof(asc_scsi_q->sg_head) + use_sg * sizeof(struct asc_sg_list), GFP_ATOMIC); if (!asc_sg_head) { - dma_unmap_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); + scsi_dma_unmap(scp); scp->result = HOST_BYTE(DID_SOFT_ERROR); return ASC_ERROR; } @@ -9980,7 +9960,7 @@ static int asc_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, /* * Convert scatter-gather list into ASC_SG_HEAD list. */ - for (sgcnt = 0; sgcnt < use_sg; sgcnt++, slp++) { + scsi_for_each_sg(scp, slp, use_sg, sgcnt) { asc_sg_head->sg_list[sgcnt].addr = cpu_to_le32(sg_dma_address(slp)); asc_sg_head->sg_list[sgcnt].bytes = @@ -10021,7 +10001,7 @@ adv_get_sglist(struct asc_board *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, int i; scsiqp = (ADV_SCSI_REQ_Q *)ADV_32BALIGN(&reqp->scsi_req_q); - slp = (struct scatterlist *)scp->request_buffer; + slp = scsi_sglist(scp); sg_elem_cnt = use_sg; prev_sg_block = NULL; reqp->sgblkp = NULL; @@ -10126,6 +10106,7 @@ adv_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, ADV_SCSI_REQ_Q *scsiqp; int i; int ret; + int use_sg; /* * Allocate an adv_req_t structure from the board to execute @@ -10187,49 +10168,33 @@ adv_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, * buffer command. */ - scsiqp->data_cnt = cpu_to_le32(scp->request_bufflen); - scsiqp->vdata_addr = scp->request_buffer; - scsiqp->data_addr = cpu_to_le32(virt_to_bus(scp->request_buffer)); - - if (scp->use_sg == 0) { + scsiqp->data_cnt = cpu_to_le32(scsi_bufflen(scp)); + use_sg = scsi_dma_map(scp); + if (use_sg == 0) { /* * CDB request of single contiguous buffer. */ reqp->sgblkp = NULL; - scsiqp->data_cnt = cpu_to_le32(scp->request_bufflen); - if (scp->request_bufflen) { - scsiqp->vdata_addr = scp->request_buffer; - scp->SCp.dma_handle = - dma_map_single(boardp->dev, scp->request_buffer, - scp->request_bufflen, - scp->sc_data_direction); - } else { - scsiqp->vdata_addr = NULL; - scp->SCp.dma_handle = 0; - } - scsiqp->data_addr = cpu_to_le32(scp->SCp.dma_handle); + + scsiqp->data_cnt = 0; + scsiqp->vdata_addr = NULL; + scp->SCp.dma_handle = 0; + + scsiqp->data_addr = 0; scsiqp->sg_list_ptr = NULL; scsiqp->sg_real_addr = 0; ASC_STATS(scp->device->host, cont_cnt); - ASC_STATS_ADD(scp->device->host, cont_xfer, - ASC_CEILING(scp->request_bufflen, 512)); + ASC_STATS_ADD(scp->device->host, cont_xfer, 0); } else { /* * CDB scatter-gather request list. */ - struct scatterlist *slp; - int use_sg; - - slp = (struct scatterlist *)scp->request_buffer; - use_sg = dma_map_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); if (use_sg > ADV_MAX_SG_LIST) { scmd_printk(KERN_ERR, scp, "use_sg %d > " "ADV_MAX_SG_LIST %d\n", use_sg, scp->device->host->sg_tablesize); - dma_unmap_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); + scsi_dma_unmap(scp); scp->result = HOST_BYTE(DID_ERROR); /* -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* Re: [PATCH 16/22] advansys: Eliminate prototypes 2007-09-16 23:17 ` FUJITA Tomonori @ 2007-09-17 12:21 ` Matthew Wilcox 0 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-17 12:21 UTC (permalink / raw) To: FUJITA Tomonori; +Cc: James.Bottomley, linux-scsi, fujita.tomonori On Mon, Sep 17, 2007 at 08:17:21AM +0900, FUJITA Tomonori wrote: > I updated the previous patch for your latest patchset. I removed the > sg chaining support so you can send it to scsi-misc now. > > Just a one-line patch is necessary for the sg chaining support. It'll > be push to mainline via Jens' tree. Thanks. I took care of a few other things too .. here's the patch I ended up committing. James, if you want to take this now, that's fine by me, otherwise I'll send it as part of my next round of updates. commit da1910c08d03b97d98ebefc3b28d1c147e77e02e Author: Matthew Wilcox <matthew@wil.cx> Date: Mon Sep 17 08:18:32 2007 -0400 advansys: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> - convert the statistics to not distinguish between single and sg xfers - replace ASC_CEILING with DIV_ROUND_UP - remove an obsolete comment Signed-off-by: Matthew Wilcox <matthew@wil.cx> diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 4cc60e4..7d334f8 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -2223,8 +2223,6 @@ do { \ (((struct asc_board *) shost_priv(shost))->asc_stats.counter += (count)) #endif /* ADVANSYS_STATS */ -#define ASC_CEILING(val, unit) (((val) + ((unit) - 1))/(unit)) - /* If the result wraps when calculating tenths, return 0. */ #define ASC_TENTHS(num, den) \ (((10 * ((num)/(den))) > (((num) * 10)/(den))) ? \ @@ -2356,11 +2354,9 @@ struct asc_stats { ADV_DCNT exe_error; /* # ASC_ERROR returns. */ ADV_DCNT exe_unknown; /* # unknown returns. */ /* Data Transfer Statistics */ - ADV_DCNT cont_cnt; /* # non-scatter-gather I/O requests received */ - ADV_DCNT cont_xfer; /* # contiguous transfer 512-bytes */ - ADV_DCNT sg_cnt; /* # scatter-gather I/O requests received */ - ADV_DCNT sg_elem; /* # scatter-gather elements */ - ADV_DCNT sg_xfer; /* # scatter-gather transfer 512-bytes */ + ADV_DCNT xfer_cnt; /* # I/O requests received */ + ADV_DCNT xfer_elem; /* # scatter-gather elements */ + ADV_DCNT xfer_sect; /* # 512-byte blocks */ }; #endif /* ADVANSYS_STATS */ @@ -4057,57 +4053,32 @@ static int asc_prt_board_stats(struct Scsi_Host *shost, char *cp, int cplen) /* * Display data transfer statistics. */ - if (s->cont_cnt > 0) { - len = asc_prt_line(cp, leftlen, " cont_cnt %lu, ", s->cont_cnt); - ASC_PRT_NEXT(); - - len = asc_prt_line(cp, leftlen, "cont_xfer %lu.%01lu kb ", - s->cont_xfer / 2, - ASC_TENTHS(s->cont_xfer, 2)); - ASC_PRT_NEXT(); - - /* Contiguous transfer average size */ - len = asc_prt_line(cp, leftlen, "avg_xfer %lu.%01lu kb\n", - (s->cont_xfer / 2) / s->cont_cnt, - ASC_TENTHS((s->cont_xfer / 2), s->cont_cnt)); - ASC_PRT_NEXT(); - } - - if (s->sg_cnt > 0) { - - len = asc_prt_line(cp, leftlen, " sg_cnt %lu, sg_elem %lu, ", - s->sg_cnt, s->sg_elem); + if (s->xfer_cnt > 0) { + len = asc_prt_line(cp, leftlen, " xfer_cnt %lu, xfer_elem %lu, ", + s->xfer_cnt, s->xfer_elem); ASC_PRT_NEXT(); - len = asc_prt_line(cp, leftlen, "sg_xfer %lu.%01lu kb\n", - s->sg_xfer / 2, ASC_TENTHS(s->sg_xfer, 2)); + len = asc_prt_line(cp, leftlen, "xfer_bytes %lu.%01lu kb\n", + s->xfer_sect / 2, ASC_TENTHS(s->xfer_sect, 2)); ASC_PRT_NEXT(); /* Scatter gather transfer statistics */ len = asc_prt_line(cp, leftlen, " avg_num_elem %lu.%01lu, ", - s->sg_elem / s->sg_cnt, - ASC_TENTHS(s->sg_elem, s->sg_cnt)); + s->xfer_elem / s->xfer_cnt, + ASC_TENTHS(s->xfer_elem, s->xfer_cnt)); ASC_PRT_NEXT(); len = asc_prt_line(cp, leftlen, "avg_elem_size %lu.%01lu kb, ", - (s->sg_xfer / 2) / s->sg_elem, - ASC_TENTHS((s->sg_xfer / 2), s->sg_elem)); + (s->xfer_sect / 2) / s->xfer_elem, + ASC_TENTHS((s->xfer_sect / 2), s->xfer_elem)); ASC_PRT_NEXT(); len = asc_prt_line(cp, leftlen, "avg_xfer_size %lu.%01lu kb\n", - (s->sg_xfer / 2) / s->sg_cnt, - ASC_TENTHS((s->sg_xfer / 2), s->sg_cnt)); + (s->xfer_sect / 2) / s->xfer_cnt, + ASC_TENTHS((s->xfer_sect / 2), s->xfer_cnt)); ASC_PRT_NEXT(); } - /* - * Display request queuing statistics. - */ - len = asc_prt_line(cp, leftlen, - " Active and Waiting Request Queues (Time Unit: %d HZ):\n", - HZ); - ASC_PRT_NEXT(); - return totlen; } #endif /* ADVANSYS_STATS */ @@ -4301,18 +4272,8 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, static void asc_scsi_done(struct scsi_cmnd *scp) { - struct asc_board *boardp = shost_priv(scp->device->host); - - if (scp->use_sg) - dma_unmap_sg(boardp->dev, - (struct scatterlist *)scp->request_buffer, - scp->use_sg, scp->sc_data_direction); - else if (scp->request_bufflen) - dma_unmap_single(boardp->dev, scp->SCp.dma_handle, - scp->request_bufflen, scp->sc_data_direction); - + scsi_dma_unmap(scp); ASC_STATS(scp->device->host, done); - scp->scsi_done(scp); } @@ -8210,11 +8171,11 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) * then return the number of underrun bytes. */ resid_cnt = le32_to_cpu(scsiqp->data_cnt); - if (scp->request_bufflen != 0 && resid_cnt != 0 && - resid_cnt <= scp->request_bufflen) { + if (scsi_bufflen(scp) != 0 && resid_cnt != 0 && + resid_cnt <= scsi_bufflen(scp)) { ASC_DBG(1, "underrun condition %lu bytes\n", (ulong)resid_cnt); - scp->resid = resid_cnt; + scsi_set_resid(scp, resid_cnt); } break; @@ -9148,11 +9109,11 @@ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) * If there was no error and an underrun condition, then * return the number of underrun bytes. */ - if (scp->request_bufflen != 0 && qdonep->remain_bytes != 0 && - qdonep->remain_bytes <= scp->request_bufflen) { + if (scsi_bufflen(scp) != 0 && qdonep->remain_bytes != 0 && + qdonep->remain_bytes <= scsi_bufflen(scp)) { ASC_DBG(1, "underrun condition %u bytes\n", (unsigned)qdonep->remain_bytes); - scp->resid = qdonep->remain_bytes; + scsi_set_resid(scp, qdonep->remain_bytes); } break; @@ -9877,6 +9838,8 @@ static int advansys_slave_configure(struct scsi_device *sdev) static int asc_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, struct asc_scsi_q *asc_scsi_q) { + int use_sg; + memset(asc_scsi_q, 0, sizeof(*asc_scsi_q)); /* @@ -9915,55 +9878,26 @@ static int asc_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, asc_scsi_q->q2.tag_code = MSG_SIMPLE_TAG; } - /* - * Build ASC_SCSI_Q for a contiguous buffer or a scatter-gather - * buffer command. - */ - if (scp->use_sg == 0) { - /* - * CDB request of single contiguous buffer. - */ - ASC_STATS(scp->device->host, cont_cnt); - scp->SCp.dma_handle = scp->request_bufflen ? - dma_map_single(boardp->dev, scp->request_buffer, - scp->request_bufflen, - scp->sc_data_direction) : 0; - asc_scsi_q->q1.data_addr = cpu_to_le32(scp->SCp.dma_handle); - asc_scsi_q->q1.data_cnt = cpu_to_le32(scp->request_bufflen); - ASC_STATS_ADD(scp->device->host, cont_xfer, - ASC_CEILING(scp->request_bufflen, 512)); - asc_scsi_q->q1.sg_queue_cnt = 0; - asc_scsi_q->sg_head = NULL; - } else { - /* - * CDB scatter-gather request list. - */ + /* Build ASC_SCSI_Q */ + use_sg = scsi_dma_map(scp); + if (use_sg != 0) { int sgcnt; - int use_sg; struct scatterlist *slp; struct asc_sg_head *asc_sg_head; - slp = (struct scatterlist *)scp->request_buffer; - use_sg = dma_map_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); - if (use_sg > scp->device->host->sg_tablesize) { scmd_printk(KERN_ERR, scp, "use_sg %d > " "sg_tablesize %d\n", use_sg, scp->device->host->sg_tablesize); - dma_unmap_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); + scsi_dma_unmap(scp); scp->result = HOST_BYTE(DID_ERROR); return ASC_ERROR; } - ASC_STATS(scp->device->host, sg_cnt); - asc_sg_head = kzalloc(sizeof(asc_scsi_q->sg_head) + use_sg * sizeof(struct asc_sg_list), GFP_ATOMIC); if (!asc_sg_head) { - dma_unmap_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); + scsi_dma_unmap(scp); scp->result = HOST_BYTE(DID_SOFT_ERROR); return ASC_ERROR; } @@ -9974,22 +9908,24 @@ static int asc_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, asc_scsi_q->q1.data_addr = 0; /* This is a byte value, otherwise it would need to be swapped. */ asc_sg_head->entry_cnt = asc_scsi_q->q1.sg_queue_cnt = use_sg; - ASC_STATS_ADD(scp->device->host, sg_elem, + ASC_STATS_ADD(scp->device->host, xfer_elem, asc_sg_head->entry_cnt); /* * Convert scatter-gather list into ASC_SG_HEAD list. */ - for (sgcnt = 0; sgcnt < use_sg; sgcnt++, slp++) { + scsi_for_each_sg(scp, slp, use_sg, sgcnt) { asc_sg_head->sg_list[sgcnt].addr = cpu_to_le32(sg_dma_address(slp)); asc_sg_head->sg_list[sgcnt].bytes = cpu_to_le32(sg_dma_len(slp)); - ASC_STATS_ADD(scp->device->host, sg_xfer, - ASC_CEILING(sg_dma_len(slp), 512)); + ASC_STATS_ADD(scp->device->host, xfer_sect, + DIV_ROUND_UP(sg_dma_len(slp), 512)); } } + ASC_STATS(scp->device->host, xfer_cnt); + ASC_DBG_PRT_ASC_SCSI_Q(2, asc_scsi_q); ASC_DBG_PRT_CDB(1, scp->cmnd, scp->cmd_len); @@ -10021,7 +9957,7 @@ adv_get_sglist(struct asc_board *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, int i; scsiqp = (ADV_SCSI_REQ_Q *)ADV_32BALIGN(&reqp->scsi_req_q); - slp = (struct scatterlist *)scp->request_buffer; + slp = scsi_sglist(scp); sg_elem_cnt = use_sg; prev_sg_block = NULL; reqp->sgblkp = NULL; @@ -10093,8 +10029,8 @@ adv_get_sglist(struct asc_board *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, cpu_to_le32(sg_dma_address(slp)); sg_block->sg_list[i].sg_count = cpu_to_le32(sg_dma_len(slp)); - ASC_STATS_ADD(scp->device->host, sg_xfer, - ASC_CEILING(sg_dma_len(slp), 512)); + ASC_STATS_ADD(scp->device->host, xfer_sect, + DIV_ROUND_UP(sg_dma_len(slp), 512)); if (--sg_elem_cnt == 0) { /* Last ADV_SG_BLOCK and scatter-gather entry. */ sg_block->sg_cnt = i + 1; @@ -10126,6 +10062,7 @@ adv_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, ADV_SCSI_REQ_Q *scsiqp; int i; int ret; + int use_sg; /* * Allocate an adv_req_t structure from the board to execute @@ -10182,54 +10119,24 @@ adv_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, scsiqp->sense_addr = cpu_to_le32(virt_to_bus(&scp->sense_buffer[0])); scsiqp->sense_len = sizeof(scp->sense_buffer); - /* - * Build ADV_SCSI_REQ_Q for a contiguous buffer or a scatter-gather - * buffer command. - */ + /* Build ADV_SCSI_REQ_Q */ - scsiqp->data_cnt = cpu_to_le32(scp->request_bufflen); - scsiqp->vdata_addr = scp->request_buffer; - scsiqp->data_addr = cpu_to_le32(virt_to_bus(scp->request_buffer)); - - if (scp->use_sg == 0) { - /* - * CDB request of single contiguous buffer. - */ + use_sg = scsi_dma_map(scp); + if (use_sg == 0) { + /* Zero-length transfer */ reqp->sgblkp = NULL; - scsiqp->data_cnt = cpu_to_le32(scp->request_bufflen); - if (scp->request_bufflen) { - scsiqp->vdata_addr = scp->request_buffer; - scp->SCp.dma_handle = - dma_map_single(boardp->dev, scp->request_buffer, - scp->request_bufflen, - scp->sc_data_direction); - } else { - scsiqp->vdata_addr = NULL; - scp->SCp.dma_handle = 0; - } - scsiqp->data_addr = cpu_to_le32(scp->SCp.dma_handle); + scsiqp->data_cnt = 0; + scsiqp->vdata_addr = NULL; + + scsiqp->data_addr = 0; scsiqp->sg_list_ptr = NULL; scsiqp->sg_real_addr = 0; - ASC_STATS(scp->device->host, cont_cnt); - ASC_STATS_ADD(scp->device->host, cont_xfer, - ASC_CEILING(scp->request_bufflen, 512)); } else { - /* - * CDB scatter-gather request list. - */ - struct scatterlist *slp; - int use_sg; - - slp = (struct scatterlist *)scp->request_buffer; - use_sg = dma_map_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); - if (use_sg > ADV_MAX_SG_LIST) { scmd_printk(KERN_ERR, scp, "use_sg %d > " "ADV_MAX_SG_LIST %d\n", use_sg, scp->device->host->sg_tablesize); - dma_unmap_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); + scsi_dma_unmap(scp); scp->result = HOST_BYTE(DID_ERROR); /* @@ -10242,6 +10149,8 @@ adv_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, return ASC_ERROR; } + scsiqp->data_cnt = cpu_to_le32(scsi_bufflen(scp)); + ret = adv_get_sglist(boardp, reqp, scp, use_sg); if (ret != ADV_SUCCESS) { /* @@ -10254,10 +10163,11 @@ adv_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, return ret; } - ASC_STATS(scp->device->host, sg_cnt); - ASC_STATS_ADD(scp->device->host, sg_elem, use_sg); + ASC_STATS_ADD(scp->device->host, xfer_elem, use_sg); } + ASC_STATS(scp->device->host, xfer_cnt); + ASC_DBG_PRT_ADV_SCSI_REQ_Q(2, scsiqp); ASC_DBG_PRT_CDB(1, scp->cmnd, scp->cmd_len); @@ -10955,48 +10865,6 @@ static int AdvExeScsiQueue(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq) /* * Execute a single 'Scsi_Cmnd'. - * - * The function 'done' is called when the request has been completed. - * - * Scsi_Cmnd: - * - * host - board controlling device - * device - device to send command - * target - target of device - * lun - lun of device - * cmd_len - length of SCSI CDB - * cmnd - buffer for SCSI 8, 10, or 12 byte CDB - * use_sg - if non-zero indicates scatter-gather request with use_sg elements - * - * if (use_sg == 0) { - * request_buffer - buffer address for request - * request_bufflen - length of request buffer - * } else { - * request_buffer - pointer to scatterlist structure - * } - * - * sense_buffer - sense command buffer - * - * result (4 bytes of an int): - * Byte Meaning - * 0 SCSI Status Byte Code - * 1 SCSI One Byte Message Code - * 2 Host Error Code - * 3 Mid-Level Error Code - * - * host driver fields: - * SCp - Scsi_Pointer used for command processing status - * scsi_done - used to save caller's done function - * host_scribble - used for pointer to another struct scsi_cmnd - * - * If this function returns ASC_NOERROR the request will be completed - * from the interrupt handler. - * - * If this function returns ASC_ERROR the host error code has been set, - * and the called must call asc_scsi_done. - * - * If ASC_BUSY is returned the request will be returned to the midlayer - * and re-tried later. */ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) { -- Intel are signing my paycheques ... these opinions are still mine "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 01/17] advansys: Eliminate prototypes 2007-09-15 14:39 ` James Bottomley 2007-09-16 15:31 ` Matthew Wilcox @ 2007-09-16 15:37 ` Matthew Wilcox 2007-09-16 15:37 ` [PATCH 02/17] advansys: Remove array of scsi targets Matthew Wilcox ` (16 subsequent siblings) 18 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-16 15:37 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox Rearrange a lot of the functions in the file to get rid of all the forward declarations. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c |12273 +++++++++++++++++++++++------------------------ 1 files changed, 6043 insertions(+), 6230 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 0303fc7..4f047cc 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -878,7 +878,6 @@ typedef struct asceep_config { #define ASC_1000_ID0W_FIX 0x00C1 #define ASC_1000_ID1B 0x25 #define ASC_EISA_REV_IOP_MASK (0x0C83) -#define ASC_EISA_PID_IOP_MASK (0x0C80) #define ASC_EISA_CFG_IOP_MASK (0x0C86) #define ASC_GET_EISA_SLOT(iop) (PortAddr)((iop) & 0xF000) #define INS_HALTINT (ushort)0x6281 @@ -903,10 +902,10 @@ typedef struct asc_mc_saved { #define AscGetRiscVarDoneQTail(port) AscReadLramByte((port), ASCV_DONENEXT_B) #define AscPutRiscVarFreeQHead(port, val) AscWriteLramByte((port), ASCV_NEXTRDY_B, val) #define AscPutRiscVarDoneQTail(port, val) AscWriteLramByte((port), ASCV_DONENEXT_B, val) -#define AscPutMCodeSDTRDoneAtID(port, id, data) AscWriteLramByte((port), (ushort)((ushort)ASCV_SDTR_DONE_BEG+(ushort)id), (data)); -#define AscGetMCodeSDTRDoneAtID(port, id) AscReadLramByte((port), (ushort)((ushort)ASCV_SDTR_DONE_BEG+(ushort)id)); -#define AscPutMCodeInitSDTRAtID(port, id, data) AscWriteLramByte((port), (ushort)((ushort)ASCV_SDTR_DATA_BEG+(ushort)id), data); -#define AscGetMCodeInitSDTRAtID(port, id) AscReadLramByte((port), (ushort)((ushort)ASCV_SDTR_DATA_BEG+(ushort)id)); +#define AscPutMCodeSDTRDoneAtID(port, id, data) AscWriteLramByte((port), (ushort)((ushort)ASCV_SDTR_DONE_BEG+(ushort)id), (data)) +#define AscGetMCodeSDTRDoneAtID(port, id) AscReadLramByte((port), (ushort)((ushort)ASCV_SDTR_DONE_BEG+(ushort)id)) +#define AscPutMCodeInitSDTRAtID(port, id, data) AscWriteLramByte((port), (ushort)((ushort)ASCV_SDTR_DATA_BEG+(ushort)id), data) +#define AscGetMCodeInitSDTRAtID(port, id) AscReadLramByte((port), (ushort)((ushort)ASCV_SDTR_DATA_BEG+(ushort)id)) #define AscSynIndexToPeriod(index) (uchar)(asc_dvc->sdtr_period_tbl[ (index) ]) #define AscGetChipSignatureByte(port) (uchar)inp((port)+IOP_SIG_BYTE) #define AscGetChipSignatureWord(port) (ushort)inpw((port)+IOP_SIG_WORD) @@ -962,83 +961,6 @@ typedef struct asc_mc_saved { #define AscReadChipDvcID(port) (uchar)inp((port)+IOP_REG_ID) #define AscWriteChipDvcID(port, data) outp((port)+IOP_REG_ID, data) -static int AscWriteEEPCmdReg(PortAddr iop_base, uchar cmd_reg); -static int AscWriteEEPDataReg(PortAddr iop_base, ushort data_reg); -static void AscWaitEEPRead(void); -static void AscWaitEEPWrite(void); -static ushort AscReadEEPWord(PortAddr, uchar); -static ushort AscWriteEEPWord(PortAddr, uchar, ushort); -static ushort AscGetEEPConfig(PortAddr, ASCEEP_CONFIG *, ushort); -static int AscSetEEPConfigOnce(PortAddr, ASCEEP_CONFIG *, ushort); -static int AscSetEEPConfig(PortAddr, ASCEEP_CONFIG *, ushort); -static int AscStartChip(PortAddr); -static int AscStopChip(PortAddr); -static void AscSetChipIH(PortAddr, ushort); -static int AscIsChipHalted(PortAddr); -static void AscAckInterrupt(PortAddr); -static void AscDisableInterrupt(PortAddr); -static void AscEnableInterrupt(PortAddr); -static void AscSetBank(PortAddr, uchar); -static int AscResetChipAndScsiBus(ASC_DVC_VAR *); -#ifdef CONFIG_ISA -static uchar AscGetIsaDmaSpeed(PortAddr); -#endif /* CONFIG_ISA */ -static uchar AscReadLramByte(PortAddr, ushort); -static ushort AscReadLramWord(PortAddr, ushort); -#if CC_VERY_LONG_SG_LIST -static ASC_DCNT AscReadLramDWord(PortAddr, ushort); -#endif /* CC_VERY_LONG_SG_LIST */ -static void AscWriteLramWord(PortAddr, ushort, ushort); -static void AscWriteLramByte(PortAddr, ushort, uchar); -static ASC_DCNT AscMemSumLramWord(PortAddr, ushort, int); -static void AscMemWordSetLram(PortAddr, ushort, ushort, int); -static void AscMemWordCopyPtrToLram(PortAddr, ushort, uchar *, int); -static void AscMemDWordCopyPtrToLram(PortAddr, ushort, uchar *, int); -static void AscMemWordCopyPtrFromLram(PortAddr, ushort, uchar *, int); -static ushort AscInitAscDvcVar(ASC_DVC_VAR *); -static ushort AscInitFromEEP(ASC_DVC_VAR *); -static ushort AscInitMicroCodeVar(ASC_DVC_VAR *); -static int AscTestExternalLram(ASC_DVC_VAR *); -static uchar AscMsgOutSDTR(ASC_DVC_VAR *, uchar, uchar); -static uchar AscCalSDTRData(ASC_DVC_VAR *, uchar, uchar); -static void AscSetChipSDTR(PortAddr, uchar, uchar); -static uchar AscGetSynPeriodIndex(ASC_DVC_VAR *, uchar); -static uchar AscAllocFreeQueue(PortAddr, uchar); -static uchar AscAllocMultipleFreeQueue(PortAddr, uchar, uchar); -static int AscHostReqRiscHalt(PortAddr); -static int AscStopQueueExe(PortAddr); -static int AscSendScsiQueue(ASC_DVC_VAR *, - ASC_SCSI_Q *scsiq, uchar n_q_required); -static int AscPutReadyQueue(ASC_DVC_VAR *, ASC_SCSI_Q *, uchar); -static int AscPutReadySgListQueue(ASC_DVC_VAR *, ASC_SCSI_Q *, uchar); -static int AscSetChipSynRegAtID(PortAddr, uchar, uchar); -static int AscSetRunChipSynRegAtID(PortAddr, uchar, uchar); -static ushort AscInitLram(ASC_DVC_VAR *); -static int AscSetLibErrorCode(ASC_DVC_VAR *, ushort); -static int AscIsrChipHalted(ASC_DVC_VAR *); -static uchar _AscCopyLramScsiDoneQ(PortAddr, ushort, - ASC_QDONE_INFO *, ASC_DCNT); -static int AscIsrQDone(ASC_DVC_VAR *); -#ifdef CONFIG_ISA -static ushort AscGetEisaChipCfg(PortAddr); -#endif /* CONFIG_ISA */ -static uchar AscGetChipScsiCtrl(PortAddr); -static uchar AscGetChipVersion(PortAddr, ushort); -static ASC_DCNT AscLoadMicroCode(PortAddr, ushort, uchar *, ushort); -static void AscToggleIRQAct(PortAddr); -static void DvcPutScsiQ(PortAddr, ushort, uchar *, int); -static void DvcGetQinfo(PortAddr, ushort, uchar *, int); -static ushort AscInitAsc1000Driver(ASC_DVC_VAR *); -static void AscAsyncFix(ASC_DVC_VAR *, struct scsi_device *); -static int AscExeScsiQueue(ASC_DVC_VAR *, ASC_SCSI_Q *); -static int AscISR(ASC_DVC_VAR *); -static uint AscGetNumOfFreeQueue(ASC_DVC_VAR *, uchar, uchar); -static int AscSgListToQueue(int); -#ifdef CONFIG_ISA -static void AscEnableIsaDma(uchar); -#endif /* CONFIG_ISA */ -static const char *advansys_info(struct Scsi_Host *shost); - #define ADV_LIB_VERSION_MAJOR 5 #define ADV_LIB_VERSION_MINOR 14 @@ -2109,36 +2031,6 @@ typedef struct adv_scsi_req_q { #define ADV_HOST_SCSI_BUS_RESET 0x80 /* Host Initiated SCSI Bus Reset. */ -static ADV_PADDR DvcGetPhyAddr(ADV_DVC_VAR *, ADV_SCSI_REQ_Q *, - uchar *, ASC_SDCNT *, int); - -/* - * Adv Library functions available to drivers. - */ -static int AdvExeScsiQueue(ADV_DVC_VAR *, ADV_SCSI_REQ_Q *); -static int AdvISR(ADV_DVC_VAR *); -static int AdvInitAsc3550Driver(ADV_DVC_VAR *); -static int AdvInitAsc38C0800Driver(ADV_DVC_VAR *); -static int AdvInitAsc38C1600Driver(ADV_DVC_VAR *); -static int AdvResetChipAndSB(ADV_DVC_VAR *); -static int AdvResetSB(ADV_DVC_VAR *asc_dvc); - -/* - * Internal Adv Library functions. - */ -static int AdvSendIdleCmd(ADV_DVC_VAR *, ushort, ADV_DCNT); -static int AdvInitFrom3550EEP(ADV_DVC_VAR *); -static int AdvInitFrom38C0800EEP(ADV_DVC_VAR *); -static int AdvInitFrom38C1600EEP(ADV_DVC_VAR *); -static ushort AdvGet3550EEPConfig(AdvPortAddr, ADVEEP_3550_CONFIG *); -static void AdvSet3550EEPConfig(AdvPortAddr, ADVEEP_3550_CONFIG *); -static ushort AdvGet38C0800EEPConfig(AdvPortAddr, ADVEEP_38C0800_CONFIG *); -static void AdvSet38C0800EEPConfig(AdvPortAddr, ADVEEP_38C0800_CONFIG *); -static ushort AdvGet38C1600EEPConfig(AdvPortAddr, ADVEEP_38C1600_CONFIG *); -static void AdvSet38C1600EEPConfig(AdvPortAddr, ADVEEP_38C1600_CONFIG *); -static void AdvWaitEEPCmd(AdvPortAddr); -static ushort AdvReadEEPWord(AdvPortAddr, int); - /* Read byte from a register. */ #define AdvReadByteRegister(iop_base, reg_off) \ (ADV_MEM_READB((iop_base) + (reg_off))) @@ -2676,1717 +2568,489 @@ static ASC_SG_HEAD asc_sg_head = { 0 }; #ifdef ADVANSYS_DEBUG static int asc_dbglvl = 3; -#endif /* ADVANSYS_DEBUG */ - -static int advansys_slave_configure(struct scsi_device *); -static int asc_execute_scsi_cmnd(struct scsi_cmnd *); -static int asc_build_req(asc_board_t *, struct scsi_cmnd *); -static int adv_build_req(asc_board_t *, struct scsi_cmnd *, ADV_SCSI_REQ_Q **); -static int adv_get_sglist(asc_board_t *, adv_req_t *, struct scsi_cmnd *, int); -#ifdef CONFIG_PROC_FS -static int asc_proc_copy(off_t, off_t, char *, int, char *, int); -static int asc_prt_board_devices(struct Scsi_Host *, char *, int); -static int asc_prt_adv_bios(struct Scsi_Host *, char *, int); -static int asc_get_eeprom_string(ushort *serialnum, uchar *cp); -static int asc_prt_asc_board_eeprom(struct Scsi_Host *, char *, int); -static int asc_prt_adv_board_eeprom(struct Scsi_Host *, char *, int); -static int asc_prt_driver_conf(struct Scsi_Host *, char *, int); -static int asc_prt_asc_board_info(struct Scsi_Host *, char *, int); -static int asc_prt_adv_board_info(struct Scsi_Host *, char *, int); -static int asc_prt_line(char *, int, char *fmt, ...); -#endif /* CONFIG_PROC_FS */ -/* Statistics function prototypes. */ -#ifdef ADVANSYS_STATS -#ifdef CONFIG_PROC_FS -static int asc_prt_board_stats(struct Scsi_Host *, char *, int); -#endif /* CONFIG_PROC_FS */ -#endif /* ADVANSYS_STATS */ - -/* Debug function prototypes. */ -#ifdef ADVANSYS_DEBUG -static void asc_prt_scsi_host(struct Scsi_Host *); -static void asc_prt_scsi_cmnd(struct scsi_cmnd *); -static void asc_prt_asc_dvc_cfg(ASC_DVC_CFG *); -static void asc_prt_asc_dvc_var(ASC_DVC_VAR *); -static void asc_prt_asc_scsi_q(ASC_SCSI_Q *); -static void asc_prt_asc_qdone_info(ASC_QDONE_INFO *); -static void asc_prt_adv_dvc_cfg(ADV_DVC_CFG *); -static void asc_prt_adv_dvc_var(ADV_DVC_VAR *); -static void asc_prt_adv_scsi_req_q(ADV_SCSI_REQ_Q *); -static void asc_prt_adv_sgblock(int, ADV_SG_BLOCK *); -static void asc_prt_hex(char *f, uchar *, int); -#endif /* ADVANSYS_DEBUG */ - -#ifdef CONFIG_PROC_FS /* - * advansys_proc_info() - /proc/scsi/advansys/{0,1,2,3,...} - * - * *buffer: I/O buffer - * **start: if inout == FALSE pointer into buffer where user read should start - * offset: current offset into a /proc/scsi/advansys/[0...] file - * length: length of buffer - * hostno: Scsi_Host host_no - * inout: TRUE - user is writing; FALSE - user is reading - * - * Return the number of bytes read from or written to a - * /proc/scsi/advansys/[0...] file. - * - * Note: This function uses the per board buffer 'prtbuf' which is - * allocated when the board is initialized in advansys_detect(). The - * buffer is ASC_PRTBUF_SIZE bytes. The function asc_proc_copy() is - * used to write to the buffer. The way asc_proc_copy() is written - * if 'prtbuf' is too small it will not be overwritten. Instead the - * user just won't get all the available statistics. + * asc_prt_scsi_host() */ -static int -advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, - off_t offset, int length, int inout) +static void asc_prt_scsi_host(struct Scsi_Host *s) { asc_board_t *boardp; - char *cp; - int cplen; - int cnt; - int totcnt; - int leftlen; - char *curbuf; - off_t advoffset; - - ASC_DBG(1, "advansys_proc_info: begin\n"); - - /* - * User write not supported. - */ - if (inout == TRUE) { - return (-ENOSYS); - } - - /* - * User read of /proc/scsi/advansys/[0...] file. - */ - - boardp = ASC_BOARDP(shost); - - /* Copy read data starting at the beginning of the buffer. */ - *start = buffer; - curbuf = buffer; - advoffset = 0; - totcnt = 0; - leftlen = length; - - /* - * Get board configuration information. - * - * advansys_info() returns the board string from its own static buffer. - */ - cp = (char *)advansys_info(shost); - strcat(cp, "\n"); - cplen = strlen(cp); - /* Copy board information. */ - cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); - totcnt += cnt; - leftlen -= cnt; - if (leftlen == 0) { - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; - /* - * Display Wide Board BIOS Information. - */ - if (ASC_WIDE_BOARD(boardp)) { - cp = boardp->prtbuf; - cplen = asc_prt_adv_bios(shost, cp, ASC_PRTBUF_SIZE); - BUG_ON(cplen >= ASC_PRTBUF_SIZE); - cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, - cplen); - totcnt += cnt; - leftlen -= cnt; - if (leftlen == 0) { - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; - } + boardp = ASC_BOARDP(s); - /* - * Display driver information for each device attached to the board. - */ - cp = boardp->prtbuf; - cplen = asc_prt_board_devices(shost, cp, ASC_PRTBUF_SIZE); - BUG_ON(cplen >= ASC_PRTBUF_SIZE); - cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); - totcnt += cnt; - leftlen -= cnt; - if (leftlen == 0) { - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; + printk("Scsi_Host at addr 0x%lx\n", (ulong)s); + printk(" host_busy %u, host_no %d, last_reset %d,\n", + s->host_busy, s->host_no, (unsigned)s->last_reset); - /* - * Display EEPROM configuration for the board. - */ - cp = boardp->prtbuf; - if (ASC_NARROW_BOARD(boardp)) { - cplen = asc_prt_asc_board_eeprom(shost, cp, ASC_PRTBUF_SIZE); - } else { - cplen = asc_prt_adv_board_eeprom(shost, cp, ASC_PRTBUF_SIZE); - } - BUG_ON(cplen >= ASC_PRTBUF_SIZE); - cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); - totcnt += cnt; - leftlen -= cnt; - if (leftlen == 0) { - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; + printk(" base 0x%lx, io_port 0x%lx, irq 0x%x,\n", + (ulong)s->base, (ulong)s->io_port, s->irq); - /* - * Display driver configuration and information for the board. - */ - cp = boardp->prtbuf; - cplen = asc_prt_driver_conf(shost, cp, ASC_PRTBUF_SIZE); - BUG_ON(cplen >= ASC_PRTBUF_SIZE); - cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); - totcnt += cnt; - leftlen -= cnt; - if (leftlen == 0) { - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; + printk(" dma_channel %d, this_id %d, can_queue %d,\n", + s->dma_channel, s->this_id, s->can_queue); -#ifdef ADVANSYS_STATS - /* - * Display driver statistics for the board. - */ - cp = boardp->prtbuf; - cplen = asc_prt_board_stats(shost, cp, ASC_PRTBUF_SIZE); - BUG_ON(cplen >= ASC_PRTBUF_SIZE); - cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); - totcnt += cnt; - leftlen -= cnt; - if (leftlen == 0) { - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); - return totcnt; - } - advoffset += cplen; - curbuf += cnt; -#endif /* ADVANSYS_STATS */ + printk(" cmd_per_lun %d, sg_tablesize %d, unchecked_isa_dma %d\n", + s->cmd_per_lun, s->sg_tablesize, s->unchecked_isa_dma); - /* - * Display Asc Library dynamic configuration information - * for the board. - */ - cp = boardp->prtbuf; if (ASC_NARROW_BOARD(boardp)) { - cplen = asc_prt_asc_board_info(shost, cp, ASC_PRTBUF_SIZE); + asc_prt_asc_dvc_var(&ASC_BOARDP(s)->dvc_var.asc_dvc_var); + asc_prt_asc_dvc_cfg(&ASC_BOARDP(s)->dvc_cfg.asc_dvc_cfg); } else { - cplen = asc_prt_adv_board_info(shost, cp, ASC_PRTBUF_SIZE); - } - BUG_ON(cplen >= ASC_PRTBUF_SIZE); - cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); - totcnt += cnt; - leftlen -= cnt; - if (leftlen == 0) { - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); - return totcnt; + asc_prt_adv_dvc_var(&ASC_BOARDP(s)->dvc_var.adv_dvc_var); + asc_prt_adv_dvc_cfg(&ASC_BOARDP(s)->dvc_cfg.adv_dvc_cfg); } - advoffset += cplen; - curbuf += cnt; - - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); - - return totcnt; } -#endif /* CONFIG_PROC_FS */ /* - * advansys_info() - * - * Return suitable for printing on the console with the argument - * adapter's configuration information. - * - * Note: The information line should not exceed ASC_INFO_SIZE bytes, - * otherwise the static 'info' array will be overrun. + * asc_prt_scsi_cmnd() */ -static const char *advansys_info(struct Scsi_Host *shost) -{ - static char info[ASC_INFO_SIZE]; - asc_board_t *boardp; - ASC_DVC_VAR *asc_dvc_varp; - ADV_DVC_VAR *adv_dvc_varp; - char *busname; - char *widename = NULL; - - boardp = ASC_BOARDP(shost); - if (ASC_NARROW_BOARD(boardp)) { - asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; - ASC_DBG(1, "advansys_info: begin\n"); - if (asc_dvc_varp->bus_type & ASC_IS_ISA) { - if ((asc_dvc_varp->bus_type & ASC_IS_ISAPNP) == - ASC_IS_ISAPNP) { - busname = "ISA PnP"; - } else { - busname = "ISA"; - } - sprintf(info, - "AdvanSys SCSI %s: %s: IO 0x%lX-0x%lX, IRQ 0x%X, DMA 0x%X", - ASC_VERSION, busname, - (ulong)shost->io_port, - (ulong)shost->io_port + ASC_IOADR_GAP - 1, - shost->irq, shost->dma_channel); - } else { - if (asc_dvc_varp->bus_type & ASC_IS_VL) { - busname = "VL"; - } else if (asc_dvc_varp->bus_type & ASC_IS_EISA) { - busname = "EISA"; - } else if (asc_dvc_varp->bus_type & ASC_IS_PCI) { - if ((asc_dvc_varp->bus_type & ASC_IS_PCI_ULTRA) - == ASC_IS_PCI_ULTRA) { - busname = "PCI Ultra"; - } else { - busname = "PCI"; - } - } else { - busname = "?"; - ASC_PRINT2("advansys_info: board %d: unknown " - "bus type %d\n", boardp->id, - asc_dvc_varp->bus_type); - } - sprintf(info, - "AdvanSys SCSI %s: %s: IO 0x%lX-0x%lX, IRQ 0x%X", - ASC_VERSION, busname, (ulong)shost->io_port, - (ulong)shost->io_port + ASC_IOADR_GAP - 1, - shost->irq); - } - } else { - /* - * Wide Adapter Information - * - * Memory-mapped I/O is used instead of I/O space to access - * the adapter, but display the I/O Port range. The Memory - * I/O address is displayed through the driver /proc file. - */ - adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; - if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { - widename = "Ultra-Wide"; - } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) { - widename = "Ultra2-Wide"; - } else { - widename = "Ultra3-Wide"; - } - sprintf(info, - "AdvanSys SCSI %s: PCI %s: PCIMEM 0x%lX-0x%lX, IRQ 0x%X", - ASC_VERSION, widename, (ulong)adv_dvc_varp->iop_base, - (ulong)adv_dvc_varp->iop_base + boardp->asc_n_io_port - 1, shost->irq); - } - BUG_ON(strlen(info) >= ASC_INFO_SIZE); - ASC_DBG(1, "advansys_info: end\n"); - return info; -} - -static void asc_scsi_done(struct scsi_cmnd *scp) +static void asc_prt_scsi_cmnd(struct scsi_cmnd *s) { - struct asc_board *boardp = ASC_BOARDP(scp->device->host); + printk("struct scsi_cmnd at addr 0x%lx\n", (ulong)s); - if (scp->use_sg) - dma_unmap_sg(boardp->dev, - (struct scatterlist *)scp->request_buffer, - scp->use_sg, scp->sc_data_direction); - else if (scp->request_bufflen) - dma_unmap_single(boardp->dev, scp->SCp.dma_handle, - scp->request_bufflen, scp->sc_data_direction); + printk(" host 0x%lx, device 0x%lx, target %u, lun %u, channel %u,\n", + (ulong)s->device->host, (ulong)s->device, s->device->id, + s->device->lun, s->device->channel); - ASC_STATS(scp->device->host, done); + asc_prt_hex(" CDB", s->cmnd, s->cmd_len); - scp->scsi_done(scp); -} + printk("sc_data_direction %u, resid %d\n", + s->sc_data_direction, s->resid); -/* - * advansys_queuecommand() - interrupt-driven I/O entrypoint. - * - * This function always returns 0. Command return status is saved - * in the 'scp' result field. - */ -static int -advansys_queuecommand(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd *)) -{ - struct Scsi_Host *shost = scp->device->host; - asc_board_t *boardp = ASC_BOARDP(shost); - unsigned long flags; - int asc_res, result = 0; + printk(" use_sg %u, sglist_len %u\n", s->use_sg, s->sglist_len); - ASC_STATS(shost, queuecommand); - scp->scsi_done = done; + printk(" serial_number 0x%x, retries %d, allowed %d\n", + (unsigned)s->serial_number, s->retries, s->allowed); - /* - * host_lock taken by mid-level prior to call, but need - * to protect against own ISR - */ - spin_lock_irqsave(&boardp->lock, flags); - asc_res = asc_execute_scsi_cmnd(scp); - spin_unlock_irqrestore(&boardp->lock, flags); + printk(" timeout_per_command %d\n", s->timeout_per_command); - switch (asc_res) { - case ASC_NOERROR: - break; - case ASC_BUSY: - result = SCSI_MLQUEUE_HOST_BUSY; - break; - case ASC_ERROR: - default: - asc_scsi_done(scp); - break; - } + printk(" scsi_done 0x%p, done 0x%p, host_scribble 0x%p, result 0x%x\n", + s->scsi_done, s->done, s->host_scribble, s->result); - return result; + printk(" tag %u, pid %u\n", (unsigned)s->tag, (unsigned)s->pid); } /* - * advansys_reset() - * - * Reset the bus associated with the command 'scp'. - * - * This function runs its own thread. Interrupts must be blocked but - * sleeping is allowed and no locking other than for host structures is - * required. Returns SUCCESS or FAILED. + * asc_prt_asc_dvc_var() */ -static int advansys_reset(struct scsi_cmnd *scp) +static void asc_prt_asc_dvc_var(ASC_DVC_VAR *h) { - struct Scsi_Host *shost; - asc_board_t *boardp; - ASC_DVC_VAR *asc_dvc_varp; - ADV_DVC_VAR *adv_dvc_varp; - ulong flags; - int status; - int ret = SUCCESS; - - ASC_DBG1(1, "advansys_reset: 0x%lx\n", (ulong)scp); - -#ifdef ADVANSYS_STATS - if (scp->device->host != NULL) { - ASC_STATS(scp->device->host, reset); - } -#endif /* ADVANSYS_STATS */ - - if ((shost = scp->device->host) == NULL) { - scp->result = HOST_BYTE(DID_ERROR); - return FAILED; - } - - boardp = ASC_BOARDP(shost); - - ASC_PRINT1("advansys_reset: board %d: SCSI bus reset started...\n", - boardp->id); - /* - * Check for re-entrancy. - */ - spin_lock_irqsave(&boardp->lock, flags); - if (boardp->flags & ASC_HOST_IN_RESET) { - spin_unlock_irqrestore(&boardp->lock, flags); - return FAILED; - } - boardp->flags |= ASC_HOST_IN_RESET; - spin_unlock_irqrestore(&boardp->lock, flags); - - if (ASC_NARROW_BOARD(boardp)) { - /* - * Narrow Board - */ - asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; - - /* - * Reset the chip and SCSI bus. - */ - ASC_DBG(1, "advansys_reset: before AscInitAsc1000Driver()\n"); - status = AscInitAsc1000Driver(asc_dvc_varp); - - /* Refer to ASC_IERR_* defintions for meaning of 'err_code'. */ - if (asc_dvc_varp->err_code) { - ASC_PRINT2("advansys_reset: board %d: SCSI bus reset " - "error: 0x%x\n", boardp->id, - asc_dvc_varp->err_code); - ret = FAILED; - } else if (status) { - ASC_PRINT2("advansys_reset: board %d: SCSI bus reset " - "warning: 0x%x\n", boardp->id, status); - } else { - ASC_PRINT1("advansys_reset: board %d: SCSI bus reset " - "successful.\n", boardp->id); - } - - ASC_DBG(1, "advansys_reset: after AscInitAsc1000Driver()\n"); - spin_lock_irqsave(&boardp->lock, flags); - - } else { - /* - * Wide Board - * - * If the suggest reset bus flags are set, then reset the bus. - * Otherwise only reset the device. - */ - adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; + printk("ASC_DVC_VAR at addr 0x%lx\n", (ulong)h); - /* - * Reset the target's SCSI bus. - */ - ASC_DBG(1, "advansys_reset: before AdvResetChipAndSB()\n"); - switch (AdvResetChipAndSB(adv_dvc_varp)) { - case ASC_TRUE: - ASC_PRINT1("advansys_reset: board %d: SCSI bus reset " - "successful.\n", boardp->id); - break; - case ASC_FALSE: - default: - ASC_PRINT1("advansys_reset: board %d: SCSI bus reset " - "error.\n", boardp->id); - ret = FAILED; - break; - } - spin_lock_irqsave(&boardp->lock, flags); - (void)AdvISR(adv_dvc_varp); - } - /* Board lock is held. */ + printk(" iop_base 0x%x, err_code 0x%x, dvc_cntl 0x%x, bug_fix_cntl " + "%d,\n", h->iop_base, h->err_code, h->dvc_cntl, h->bug_fix_cntl); - /* Save the time of the most recently completed reset. */ - boardp->last_reset = jiffies; + printk(" bus_type %d, init_sdtr 0x%x,\n", h->bus_type, + (unsigned)h->init_sdtr); - /* Clear reset flag. */ - boardp->flags &= ~ASC_HOST_IN_RESET; - spin_unlock_irqrestore(&boardp->lock, flags); + printk(" sdtr_done 0x%x, use_tagged_qng 0x%x, unit_not_ready 0x%x, " + "chip_no 0x%x,\n", (unsigned)h->sdtr_done, + (unsigned)h->use_tagged_qng, (unsigned)h->unit_not_ready, + (unsigned)h->chip_no); - ASC_DBG1(1, "advansys_reset: ret %d\n", ret); + printk(" queue_full_or_busy 0x%x, start_motor 0x%x, scsi_reset_wait " + "%u,\n", (unsigned)h->queue_full_or_busy, + (unsigned)h->start_motor, (unsigned)h->scsi_reset_wait); - return ret; -} + printk(" is_in_int %u, max_total_qng %u, cur_total_qng %u, " + "in_critical_cnt %u,\n", (unsigned)h->is_in_int, + (unsigned)h->max_total_qng, (unsigned)h->cur_total_qng, + (unsigned)h->in_critical_cnt); -/* - * advansys_biosparam() - * - * Translate disk drive geometry if the "BIOS greater than 1 GB" - * support is enabled for a drive. - * - * ip (information pointer) is an int array with the following definition: - * ip[0]: heads - * ip[1]: sectors - * ip[2]: cylinders - */ -static int -advansys_biosparam(struct scsi_device *sdev, struct block_device *bdev, - sector_t capacity, int ip[]) -{ - asc_board_t *boardp; + printk(" last_q_shortage %u, init_state 0x%x, no_scam 0x%x, " + "pci_fix_asyn_xfer 0x%x,\n", (unsigned)h->last_q_shortage, + (unsigned)h->init_state, (unsigned)h->no_scam, + (unsigned)h->pci_fix_asyn_xfer); - ASC_DBG(1, "advansys_biosparam: begin\n"); - ASC_STATS(sdev->host, biosparam); - boardp = ASC_BOARDP(sdev->host); - if (ASC_NARROW_BOARD(boardp)) { - if ((boardp->dvc_var.asc_dvc_var.dvc_cntl & - ASC_CNTL_BIOS_GT_1GB) && capacity > 0x200000) { - ip[0] = 255; - ip[1] = 63; - } else { - ip[0] = 64; - ip[1] = 32; - } - } else { - if ((boardp->dvc_var.adv_dvc_var.bios_ctrl & - BIOS_CTRL_EXTENDED_XLAT) && capacity > 0x200000) { - ip[0] = 255; - ip[1] = 63; - } else { - ip[0] = 64; - ip[1] = 32; - } - } - ip[2] = (unsigned long)capacity / (ip[0] * ip[1]); - ASC_DBG(1, "advansys_biosparam: end\n"); - return 0; + printk(" cfg 0x%lx, irq_no 0x%x\n", (ulong)h->cfg, (unsigned)h->irq_no); } -static struct scsi_host_template advansys_template = { - .proc_name = DRV_NAME, -#ifdef CONFIG_PROC_FS - .proc_info = advansys_proc_info, -#endif - .name = DRV_NAME, - .info = advansys_info, - .queuecommand = advansys_queuecommand, - .eh_bus_reset_handler = advansys_reset, - .bios_param = advansys_biosparam, - .slave_configure = advansys_slave_configure, - /* - * Because the driver may control an ISA adapter 'unchecked_isa_dma' - * must be set. The flag will be cleared in advansys_board_found - * for non-ISA adapters. - */ - .unchecked_isa_dma = 1, - /* - * All adapters controlled by this driver are capable of large - * scatter-gather lists. According to the mid-level SCSI documentation - * this obviates any performance gain provided by setting - * 'use_clustering'. But empirically while CPU utilization is increased - * by enabling clustering, I/O throughput increases as well. - */ - .use_clustering = ENABLE_CLUSTERING, -}; - /* - * First-level interrupt handler. - * - * 'dev_id' is a pointer to the interrupting adapter's Scsi_Host. + * asc_prt_asc_dvc_cfg() */ -static irqreturn_t advansys_interrupt(int irq, void *dev_id) -{ - unsigned long flags; - struct Scsi_Host *shost = dev_id; - asc_board_t *boardp = ASC_BOARDP(shost); - irqreturn_t result = IRQ_NONE; - - ASC_DBG1(2, "advansys_interrupt: boardp 0x%p\n", boardp); - spin_lock_irqsave(&boardp->lock, flags); - if (ASC_NARROW_BOARD(boardp)) { - if (AscIsIntPending(shost->io_port)) { - result = IRQ_HANDLED; - ASC_STATS(shost, interrupt); - ASC_DBG(1, "advansys_interrupt: before AscISR()\n"); - AscISR(&boardp->dvc_var.asc_dvc_var); - } - } else { - ASC_DBG(1, "advansys_interrupt: before AdvISR()\n"); - if (AdvISR(&boardp->dvc_var.adv_dvc_var)) { - result = IRQ_HANDLED; - ASC_STATS(shost, interrupt); - } - } - spin_unlock_irqrestore(&boardp->lock, flags); - - ASC_DBG(1, "advansys_interrupt: end\n"); - return result; -} - -static void -advansys_narrow_slave_configure(struct scsi_device *sdev, ASC_DVC_VAR *asc_dvc) +static void asc_prt_asc_dvc_cfg(ASC_DVC_CFG *h) { - ASC_SCSI_BIT_ID_TYPE tid_bit = 1 << sdev->id; - ASC_SCSI_BIT_ID_TYPE orig_use_tagged_qng = asc_dvc->use_tagged_qng; - - if (sdev->lun == 0) { - ASC_SCSI_BIT_ID_TYPE orig_init_sdtr = asc_dvc->init_sdtr; - if ((asc_dvc->cfg->sdtr_enable & tid_bit) && sdev->sdtr) { - asc_dvc->init_sdtr |= tid_bit; - } else { - asc_dvc->init_sdtr &= ~tid_bit; - } - - if (orig_init_sdtr != asc_dvc->init_sdtr) - AscAsyncFix(asc_dvc, sdev); - } - - if (sdev->tagged_supported) { - if (asc_dvc->cfg->cmd_qng_enabled & tid_bit) { - if (sdev->lun == 0) { - asc_dvc->cfg->can_tagged_qng |= tid_bit; - asc_dvc->use_tagged_qng |= tid_bit; - } - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, - asc_dvc->max_dvc_qng[sdev->id]); - } - } else { - if (sdev->lun == 0) { - asc_dvc->cfg->can_tagged_qng &= ~tid_bit; - asc_dvc->use_tagged_qng &= ~tid_bit; - } - scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); - } - - if ((sdev->lun == 0) && - (orig_use_tagged_qng != asc_dvc->use_tagged_qng)) { - AscWriteLramByte(asc_dvc->iop_base, ASCV_DISC_ENABLE_B, - asc_dvc->cfg->disc_enable); - AscWriteLramByte(asc_dvc->iop_base, ASCV_USE_TAGGED_QNG_B, - asc_dvc->use_tagged_qng); - AscWriteLramByte(asc_dvc->iop_base, ASCV_CAN_TAGGED_QNG_B, - asc_dvc->cfg->can_tagged_qng); + printk("ASC_DVC_CFG at addr 0x%lx\n", (ulong)h); - asc_dvc->max_dvc_qng[sdev->id] = - asc_dvc->cfg->max_tag_qng[sdev->id]; - AscWriteLramByte(asc_dvc->iop_base, - (ushort)(ASCV_MAX_DVC_QNG_BEG + sdev->id), - asc_dvc->max_dvc_qng[sdev->id]); - } -} + printk(" can_tagged_qng 0x%x, cmd_qng_enabled 0x%x,\n", + h->can_tagged_qng, h->cmd_qng_enabled); + printk(" disc_enable 0x%x, sdtr_enable 0x%x,\n", + h->disc_enable, h->sdtr_enable); -/* - * Wide Transfers - * - * If the EEPROM enabled WDTR for the device and the device supports wide - * bus (16 bit) transfers, then turn on the device's 'wdtr_able' bit and - * write the new value to the microcode. - */ -static void -advansys_wide_enable_wdtr(AdvPortAddr iop_base, unsigned short tidmask) -{ - unsigned short cfg_word; - AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, cfg_word); - if ((cfg_word & tidmask) != 0) - return; + printk + (" chip_scsi_id %d, isa_dma_speed %d, isa_dma_channel %d, chip_version %d,\n", + h->chip_scsi_id, h->isa_dma_speed, h->isa_dma_channel, + h->chip_version); - cfg_word |= tidmask; - AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, cfg_word); + printk + (" pci_device_id %d, lib_serial_no %u, lib_version %u, mcode_date 0x%x,\n", + to_pci_dev(h->dev)->device, h->lib_serial_no, h->lib_version, + h->mcode_date); - /* - * Clear the microcode SDTR and WDTR negotiation done indicators for - * the target to cause it to negotiate with the new setting set above. - * WDTR when accepted causes the target to enter asynchronous mode, so - * SDTR must be negotiated. - */ - AdvReadWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); - cfg_word &= ~tidmask; - AdvWriteWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); - AdvReadWordLram(iop_base, ASC_MC_WDTR_DONE, cfg_word); - cfg_word &= ~tidmask; - AdvWriteWordLram(iop_base, ASC_MC_WDTR_DONE, cfg_word); + printk(" mcode_version %d, overrun_buf 0x%lx\n", + h->mcode_version, (ulong)h->overrun_buf); } /* - * Synchronous Transfers - * - * If the EEPROM enabled SDTR for the device and the device - * supports synchronous transfers, then turn on the device's - * 'sdtr_able' bit. Write the new value to the microcode. + * asc_prt_asc_scsi_q() */ -static void -advansys_wide_enable_sdtr(AdvPortAddr iop_base, unsigned short tidmask) +static void asc_prt_asc_scsi_q(ASC_SCSI_Q *q) { - unsigned short cfg_word; - AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, cfg_word); - if ((cfg_word & tidmask) != 0) - return; - - cfg_word |= tidmask; - AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, cfg_word); - - /* - * Clear the microcode "SDTR negotiation" done indicator for the - * target to cause it to negotiate with the new setting set above. - */ - AdvReadWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); - cfg_word &= ~tidmask; - AdvWriteWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); -} + ASC_SG_HEAD *sgp; + int i; -/* - * PPR (Parallel Protocol Request) Capable - * - * If the device supports DT mode, then it must be PPR capable. - * The PPR message will be used in place of the SDTR and WDTR - * messages to negotiate synchronous speed and offset, transfer - * width, and protocol options. - */ -static void advansys_wide_enable_ppr(ADV_DVC_VAR *adv_dvc, - AdvPortAddr iop_base, unsigned short tidmask) -{ - AdvReadWordLram(iop_base, ASC_MC_PPR_ABLE, adv_dvc->ppr_able); - adv_dvc->ppr_able |= tidmask; - AdvWriteWordLram(iop_base, ASC_MC_PPR_ABLE, adv_dvc->ppr_able); -} + printk("ASC_SCSI_Q at addr 0x%lx\n", (ulong)q); -static void -advansys_wide_slave_configure(struct scsi_device *sdev, ADV_DVC_VAR *adv_dvc) -{ - AdvPortAddr iop_base = adv_dvc->iop_base; - unsigned short tidmask = 1 << sdev->id; + printk + (" target_ix 0x%x, target_lun %u, srb_ptr 0x%lx, tag_code 0x%x,\n", + q->q2.target_ix, q->q1.target_lun, (ulong)q->q2.srb_ptr, + q->q2.tag_code); - if (sdev->lun == 0) { - /* - * Handle WDTR, SDTR, and Tag Queuing. If the feature - * is enabled in the EEPROM and the device supports the - * feature, then enable it in the microcode. - */ + printk + (" data_addr 0x%lx, data_cnt %lu, sense_addr 0x%lx, sense_len %u,\n", + (ulong)le32_to_cpu(q->q1.data_addr), + (ulong)le32_to_cpu(q->q1.data_cnt), + (ulong)le32_to_cpu(q->q1.sense_addr), q->q1.sense_len); - if ((adv_dvc->wdtr_able & tidmask) && sdev->wdtr) - advansys_wide_enable_wdtr(iop_base, tidmask); - if ((adv_dvc->sdtr_able & tidmask) && sdev->sdtr) - advansys_wide_enable_sdtr(iop_base, tidmask); - if (adv_dvc->chip_type == ADV_CHIP_ASC38C1600 && sdev->ppr) - advansys_wide_enable_ppr(adv_dvc, iop_base, tidmask); + printk(" cdbptr 0x%lx, cdb_len %u, sg_head 0x%lx, sg_queue_cnt %u\n", + (ulong)q->cdbptr, q->q2.cdb_len, + (ulong)q->sg_head, q->q1.sg_queue_cnt); - /* - * Tag Queuing is disabled for the BIOS which runs in polled - * mode and would see no benefit from Tag Queuing. Also by - * disabling Tag Queuing in the BIOS devices with Tag Queuing - * bugs will at least work with the BIOS. - */ - if ((adv_dvc->tagqng_able & tidmask) && - sdev->tagged_supported) { - unsigned short cfg_word; - AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, cfg_word); - cfg_word |= tidmask; - AdvWriteWordLram(iop_base, ASC_MC_TAGQNG_ABLE, - cfg_word); - AdvWriteByteLram(iop_base, - ASC_MC_NUMBER_OF_MAX_CMD + sdev->id, - adv_dvc->max_dvc_qng); + if (q->sg_head) { + sgp = q->sg_head; + printk("ASC_SG_HEAD at addr 0x%lx\n", (ulong)sgp); + printk(" entry_cnt %u, queue_cnt %u\n", sgp->entry_cnt, + sgp->queue_cnt); + for (i = 0; i < sgp->entry_cnt; i++) { + printk(" [%u]: addr 0x%lx, bytes %lu\n", + i, (ulong)le32_to_cpu(sgp->sg_list[i].addr), + (ulong)le32_to_cpu(sgp->sg_list[i].bytes)); } - } - if ((adv_dvc->tagqng_able & tidmask) && sdev->tagged_supported) { - scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, - adv_dvc->max_dvc_qng); - } else { - scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); } } /* - * Set the number of commands to queue per device for the - * specified host adapter. + * asc_prt_asc_qdone_info() */ -static int advansys_slave_configure(struct scsi_device *sdev) +static void asc_prt_asc_qdone_info(ASC_QDONE_INFO *q) { - asc_board_t *boardp = ASC_BOARDP(sdev->host); - boardp->flags |= ASC_SELECT_QUEUE_DEPTHS; - - /* - * Save a pointer to the sdev and set its initial/maximum - * queue depth. Only save the pointer for a lun0 dev though. - */ - if (sdev->lun == 0) - boardp->device[sdev->id] = sdev; - - if (ASC_NARROW_BOARD(boardp)) - advansys_narrow_slave_configure(sdev, - &boardp->dvc_var.asc_dvc_var); - else - advansys_wide_slave_configure(sdev, - &boardp->dvc_var.adv_dvc_var); - - return 0; + printk("ASC_QDONE_INFO at addr 0x%lx\n", (ulong)q); + printk(" srb_ptr 0x%lx, target_ix %u, cdb_len %u, tag_code %u,\n", + (ulong)q->d2.srb_ptr, q->d2.target_ix, q->d2.cdb_len, + q->d2.tag_code); + printk + (" done_stat 0x%x, host_stat 0x%x, scsi_stat 0x%x, scsi_msg 0x%x\n", + q->d3.done_stat, q->d3.host_stat, q->d3.scsi_stat, q->d3.scsi_msg); } /* - * Execute a single 'Scsi_Cmnd'. - * - * The function 'done' is called when the request has been completed. - * - * Scsi_Cmnd: - * - * host - board controlling device - * device - device to send command - * target - target of device - * lun - lun of device - * cmd_len - length of SCSI CDB - * cmnd - buffer for SCSI 8, 10, or 12 byte CDB - * use_sg - if non-zero indicates scatter-gather request with use_sg elements - * - * if (use_sg == 0) { - * request_buffer - buffer address for request - * request_bufflen - length of request buffer - * } else { - * request_buffer - pointer to scatterlist structure - * } - * - * sense_buffer - sense command buffer - * - * result (4 bytes of an int): - * Byte Meaning - * 0 SCSI Status Byte Code - * 1 SCSI One Byte Message Code - * 2 Host Error Code - * 3 Mid-Level Error Code - * - * host driver fields: - * SCp - Scsi_Pointer used for command processing status - * scsi_done - used to save caller's done function - * host_scribble - used for pointer to another struct scsi_cmnd - * - * If this function returns ASC_NOERROR the request will be completed - * from the interrupt handler. - * - * If this function returns ASC_ERROR the host error code has been set, - * and the called must call asc_scsi_done. + * asc_prt_adv_dvc_var() * - * If ASC_BUSY is returned the request will be returned to the midlayer - * and re-tried later. + * Display an ADV_DVC_VAR structure. */ -static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) +static void asc_prt_adv_dvc_var(ADV_DVC_VAR *h) { - asc_board_t *boardp; - ASC_DVC_VAR *asc_dvc_varp; - ADV_DVC_VAR *adv_dvc_varp; - ADV_SCSI_REQ_Q *adv_scsiqp; - struct scsi_device *device; - int ret; - - ASC_DBG2(1, "asc_execute_scsi_cmnd: scp 0x%lx, done 0x%lx\n", - (ulong)scp, (ulong)scp->scsi_done); - - boardp = ASC_BOARDP(scp->device->host); - device = boardp->device[scp->device->id]; + printk(" ADV_DVC_VAR at addr 0x%lx\n", (ulong)h); - if (ASC_NARROW_BOARD(boardp)) { - /* - * Build and execute Narrow Board request. - */ + printk(" iop_base 0x%lx, err_code 0x%x, ultra_able 0x%x\n", + (ulong)h->iop_base, h->err_code, (unsigned)h->ultra_able); - asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; + printk(" isr_callback 0x%lx, sdtr_able 0x%x, wdtr_able 0x%x\n", + (ulong)h->isr_callback, (unsigned)h->sdtr_able, + (unsigned)h->wdtr_able); - /* - * Build Asc Library request structure using the - * global structures 'asc_scsi_req' and 'asc_sg_head'. - * - * If an error is returned, then the request has been - * queued on the board done queue. It will be completed - * by the caller. - * - * asc_build_req() can not return ASC_BUSY. - */ - if (asc_build_req(boardp, scp) == ASC_ERROR) { - ASC_STATS(scp->device->host, build_error); - return ASC_ERROR; - } + printk(" start_motor 0x%x, scsi_reset_wait 0x%x, irq_no 0x%x,\n", + (unsigned)h->start_motor, + (unsigned)h->scsi_reset_wait, (unsigned)h->irq_no); - switch (ret = AscExeScsiQueue(asc_dvc_varp, &asc_scsi_q)) { - case ASC_NOERROR: - ASC_STATS(scp->device->host, exe_noerror); - /* - * Increment monotonically increasing per device - * successful request counter. Wrapping doesn't matter. - */ - boardp->reqcnt[scp->device->id]++; - ASC_DBG(1, "asc_execute_scsi_cmnd: AscExeScsiQueue(), " - "ASC_NOERROR\n"); - break; - case ASC_BUSY: - ASC_STATS(scp->device->host, exe_busy); - break; - case ASC_ERROR: - ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " - "AscExeScsiQueue() ASC_ERROR, err_code 0x%x\n", - boardp->id, asc_dvc_varp->err_code); - ASC_STATS(scp->device->host, exe_error); - scp->result = HOST_BYTE(DID_ERROR); - break; - default: - ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " - "AscExeScsiQueue() unknown, err_code 0x%x\n", - boardp->id, asc_dvc_varp->err_code); - ASC_STATS(scp->device->host, exe_unknown); - scp->result = HOST_BYTE(DID_ERROR); - break; - } - } else { - /* - * Build and execute Wide Board request. - */ - adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; + printk(" max_host_qng %u, max_dvc_qng %u, carr_freelist 0x%lxn\n", + (unsigned)h->max_host_qng, (unsigned)h->max_dvc_qng, + (ulong)h->carr_freelist); - /* - * Build and get a pointer to an Adv Library request structure. - * - * If the request is successfully built then send it below, - * otherwise return with an error. - */ - switch (adv_build_req(boardp, scp, &adv_scsiqp)) { - case ASC_NOERROR: - ASC_DBG(3, "asc_execute_scsi_cmnd: adv_build_req " - "ASC_NOERROR\n"); - break; - case ASC_BUSY: - ASC_DBG(1, "asc_execute_scsi_cmnd: adv_build_req " - "ASC_BUSY\n"); - /* - * The asc_stats fields 'adv_build_noreq' and - * 'adv_build_nosg' count wide board busy conditions. - * They are updated in adv_build_req and - * adv_get_sglist, respectively. - */ - return ASC_BUSY; - case ASC_ERROR: - default: - ASC_DBG(1, "asc_execute_scsi_cmnd: adv_build_req " - "ASC_ERROR\n"); - ASC_STATS(scp->device->host, build_error); - return ASC_ERROR; - } + printk(" icq_sp 0x%lx, irq_sp 0x%lx\n", + (ulong)h->icq_sp, (ulong)h->irq_sp); - switch (ret = AdvExeScsiQueue(adv_dvc_varp, adv_scsiqp)) { - case ASC_NOERROR: - ASC_STATS(scp->device->host, exe_noerror); - /* - * Increment monotonically increasing per device - * successful request counter. Wrapping doesn't matter. - */ - boardp->reqcnt[scp->device->id]++; - ASC_DBG(1, "asc_execute_scsi_cmnd: AdvExeScsiQueue(), " - "ASC_NOERROR\n"); - break; - case ASC_BUSY: - ASC_STATS(scp->device->host, exe_busy); - break; - case ASC_ERROR: - ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " - "AdvExeScsiQueue() ASC_ERROR, err_code 0x%x\n", - boardp->id, adv_dvc_varp->err_code); - ASC_STATS(scp->device->host, exe_error); - scp->result = HOST_BYTE(DID_ERROR); - break; - default: - ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " - "AdvExeScsiQueue() unknown, err_code 0x%x\n", - boardp->id, adv_dvc_varp->err_code); - ASC_STATS(scp->device->host, exe_unknown); - scp->result = HOST_BYTE(DID_ERROR); - break; - } - } + printk(" no_scam 0x%x, tagqng_able 0x%x\n", + (unsigned)h->no_scam, (unsigned)h->tagqng_able); - ASC_DBG(1, "asc_execute_scsi_cmnd: end\n"); - return ret; + printk(" chip_scsi_id 0x%x, cfg 0x%lx\n", + (unsigned)h->chip_scsi_id, (ulong)h->cfg); } /* - * Build a request structure for the Asc Library (Narrow Board). - * - * The global structures 'asc_scsi_q' and 'asc_sg_head' are - * used to build the request. + * asc_prt_adv_dvc_cfg() * - * If an error occurs, then return ASC_ERROR. + * Display an ADV_DVC_CFG structure. */ -static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp) +static void asc_prt_adv_dvc_cfg(ADV_DVC_CFG *h) { - /* - * Mutually exclusive access is required to 'asc_scsi_q' and - * 'asc_sg_head' until after the request is started. - */ - memset(&asc_scsi_q, 0, sizeof(ASC_SCSI_Q)); - - /* - * Point the ASC_SCSI_Q to the 'struct scsi_cmnd'. - */ - asc_scsi_q.q2.srb_ptr = ASC_VADDR_TO_U32(scp); - - /* - * Build the ASC_SCSI_Q request. - */ - asc_scsi_q.cdbptr = &scp->cmnd[0]; - asc_scsi_q.q2.cdb_len = scp->cmd_len; - asc_scsi_q.q1.target_id = ASC_TID_TO_TARGET_ID(scp->device->id); - asc_scsi_q.q1.target_lun = scp->device->lun; - asc_scsi_q.q2.target_ix = - ASC_TIDLUN_TO_IX(scp->device->id, scp->device->lun); - asc_scsi_q.q1.sense_addr = - cpu_to_le32(virt_to_bus(&scp->sense_buffer[0])); - asc_scsi_q.q1.sense_len = sizeof(scp->sense_buffer); - - /* - * If there are any outstanding requests for the current target, - * then every 255th request send an ORDERED request. This heuristic - * tries to retain the benefit of request sorting while preventing - * request starvation. 255 is the max number of tags or pending commands - * a device may have outstanding. - * - * The request count is incremented below for every successfully - * started request. - * - */ - if ((boardp->dvc_var.asc_dvc_var.cur_dvc_qng[scp->device->id] > 0) && - (boardp->reqcnt[scp->device->id] % 255) == 0) { - asc_scsi_q.q2.tag_code = MSG_ORDERED_TAG; - } else { - asc_scsi_q.q2.tag_code = MSG_SIMPLE_TAG; - } - - /* - * Build ASC_SCSI_Q for a contiguous buffer or a scatter-gather - * buffer command. - */ - if (scp->use_sg == 0) { - /* - * CDB request of single contiguous buffer. - */ - ASC_STATS(scp->device->host, cont_cnt); - scp->SCp.dma_handle = scp->request_bufflen ? - dma_map_single(boardp->dev, scp->request_buffer, - scp->request_bufflen, - scp->sc_data_direction) : 0; - asc_scsi_q.q1.data_addr = cpu_to_le32(scp->SCp.dma_handle); - asc_scsi_q.q1.data_cnt = cpu_to_le32(scp->request_bufflen); - ASC_STATS_ADD(scp->device->host, cont_xfer, - ASC_CEILING(scp->request_bufflen, 512)); - asc_scsi_q.q1.sg_queue_cnt = 0; - asc_scsi_q.sg_head = NULL; - } else { - /* - * CDB scatter-gather request list. - */ - int sgcnt; - int use_sg; - struct scatterlist *slp; - - slp = (struct scatterlist *)scp->request_buffer; - use_sg = dma_map_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); - - if (use_sg > scp->device->host->sg_tablesize) { - ASC_PRINT3("asc_build_req: board %d: use_sg %d > " - "sg_tablesize %d\n", boardp->id, use_sg, - scp->device->host->sg_tablesize); - dma_unmap_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); - scp->result = HOST_BYTE(DID_ERROR); - return ASC_ERROR; - } - - ASC_STATS(scp->device->host, sg_cnt); - - /* - * Use global ASC_SG_HEAD structure and set the ASC_SCSI_Q - * structure to point to it. - */ - memset(&asc_sg_head, 0, sizeof(ASC_SG_HEAD)); + printk(" ADV_DVC_CFG at addr 0x%lx\n", (ulong)h); - asc_scsi_q.q1.cntl |= QC_SG_HEAD; - asc_scsi_q.sg_head = &asc_sg_head; - asc_scsi_q.q1.data_cnt = 0; - asc_scsi_q.q1.data_addr = 0; - /* This is a byte value, otherwise it would need to be swapped. */ - asc_sg_head.entry_cnt = asc_scsi_q.q1.sg_queue_cnt = use_sg; - ASC_STATS_ADD(scp->device->host, sg_elem, - asc_sg_head.entry_cnt); + printk(" disc_enable 0x%x, termination 0x%x\n", + h->disc_enable, h->termination); - /* - * Convert scatter-gather list into ASC_SG_HEAD list. - */ - for (sgcnt = 0; sgcnt < use_sg; sgcnt++, slp++) { - asc_sg_head.sg_list[sgcnt].addr = - cpu_to_le32(sg_dma_address(slp)); - asc_sg_head.sg_list[sgcnt].bytes = - cpu_to_le32(sg_dma_len(slp)); - ASC_STATS_ADD(scp->device->host, sg_xfer, - ASC_CEILING(sg_dma_len(slp), 512)); - } - } + printk(" chip_version 0x%x, mcode_date 0x%x\n", + h->chip_version, h->mcode_date); - ASC_DBG_PRT_ASC_SCSI_Q(2, &asc_scsi_q); - ASC_DBG_PRT_CDB(1, scp->cmnd, scp->cmd_len); + printk(" mcode_version 0x%x, pci_device_id 0x%x, lib_version %u\n", + h->mcode_version, to_pci_dev(h->dev)->device, h->lib_version); - return ASC_NOERROR; + printk(" control_flag 0x%x\n", h->control_flag); } /* - * Build a request structure for the Adv Library (Wide Board). - * - * If an adv_req_t can not be allocated to issue the request, - * then return ASC_BUSY. If an error occurs, then return ASC_ERROR. + * asc_prt_adv_scsi_req_q() * - * Multi-byte fields in the ASC_SCSI_REQ_Q that are used by the - * microcode for DMA addresses or math operations are byte swapped - * to little-endian order. + * Display an ADV_SCSI_REQ_Q structure. */ -static int -adv_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, - ADV_SCSI_REQ_Q **adv_scsiqpp) +static void asc_prt_adv_scsi_req_q(ADV_SCSI_REQ_Q *q) { - adv_req_t *reqp; - ADV_SCSI_REQ_Q *scsiqp; - int i; - int ret; - - /* - * Allocate an adv_req_t structure from the board to execute - * the command. - */ - if (boardp->adv_reqp == NULL) { - ASC_DBG(1, "adv_build_req: no free adv_req_t\n"); - ASC_STATS(scp->device->host, adv_build_noreq); - return ASC_BUSY; - } else { - reqp = boardp->adv_reqp; - boardp->adv_reqp = reqp->next_reqp; - reqp->next_reqp = NULL; - } - - /* - * Get 32-byte aligned ADV_SCSI_REQ_Q and ADV_SG_BLOCK pointers. - */ - scsiqp = (ADV_SCSI_REQ_Q *)ADV_32BALIGN(&reqp->scsi_req_q); - - /* - * Initialize the structure. - */ - scsiqp->cntl = scsiqp->scsi_cntl = scsiqp->done_status = 0; - - /* - * Set the ADV_SCSI_REQ_Q 'srb_ptr' to point to the adv_req_t structure. - */ - scsiqp->srb_ptr = ASC_VADDR_TO_U32(reqp); - - /* - * Set the adv_req_t 'cmndp' to point to the struct scsi_cmnd structure. - */ - reqp->cmndp = scp; - - /* - * Build the ADV_SCSI_REQ_Q request. - */ - - /* Set CDB length and copy it to the request structure. */ - scsiqp->cdb_len = scp->cmd_len; - /* Copy first 12 CDB bytes to cdb[]. */ - for (i = 0; i < scp->cmd_len && i < 12; i++) { - scsiqp->cdb[i] = scp->cmnd[i]; - } - /* Copy last 4 CDB bytes, if present, to cdb16[]. */ - for (; i < scp->cmd_len; i++) { - scsiqp->cdb16[i - 12] = scp->cmnd[i]; - } - - scsiqp->target_id = scp->device->id; - scsiqp->target_lun = scp->device->lun; - - scsiqp->sense_addr = cpu_to_le32(virt_to_bus(&scp->sense_buffer[0])); - scsiqp->sense_len = sizeof(scp->sense_buffer); + int sg_blk_cnt; + struct asc_sg_block *sg_ptr; - /* - * Build ADV_SCSI_REQ_Q for a contiguous buffer or a scatter-gather - * buffer command. - */ + printk("ADV_SCSI_REQ_Q at addr 0x%lx\n", (ulong)q); - scsiqp->data_cnt = cpu_to_le32(scp->request_bufflen); - scsiqp->vdata_addr = scp->request_buffer; - scsiqp->data_addr = cpu_to_le32(virt_to_bus(scp->request_buffer)); + printk(" target_id %u, target_lun %u, srb_ptr 0x%lx, a_flag 0x%x\n", + q->target_id, q->target_lun, (ulong)q->srb_ptr, q->a_flag); - if (scp->use_sg == 0) { - /* - * CDB request of single contiguous buffer. - */ - reqp->sgblkp = NULL; - scsiqp->data_cnt = cpu_to_le32(scp->request_bufflen); - if (scp->request_bufflen) { - scsiqp->vdata_addr = scp->request_buffer; - scp->SCp.dma_handle = - dma_map_single(boardp->dev, scp->request_buffer, - scp->request_bufflen, - scp->sc_data_direction); - } else { - scsiqp->vdata_addr = NULL; - scp->SCp.dma_handle = 0; - } - scsiqp->data_addr = cpu_to_le32(scp->SCp.dma_handle); - scsiqp->sg_list_ptr = NULL; - scsiqp->sg_real_addr = 0; - ASC_STATS(scp->device->host, cont_cnt); - ASC_STATS_ADD(scp->device->host, cont_xfer, - ASC_CEILING(scp->request_bufflen, 512)); - } else { - /* - * CDB scatter-gather request list. - */ - struct scatterlist *slp; - int use_sg; + printk(" cntl 0x%x, data_addr 0x%lx, vdata_addr 0x%lx\n", + q->cntl, (ulong)le32_to_cpu(q->data_addr), (ulong)q->vdata_addr); - slp = (struct scatterlist *)scp->request_buffer; - use_sg = dma_map_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); + printk(" data_cnt %lu, sense_addr 0x%lx, sense_len %u,\n", + (ulong)le32_to_cpu(q->data_cnt), + (ulong)le32_to_cpu(q->sense_addr), q->sense_len); - if (use_sg > ADV_MAX_SG_LIST) { - ASC_PRINT3("adv_build_req: board %d: use_sg %d > " - "ADV_MAX_SG_LIST %d\n", boardp->id, use_sg, - scp->device->host->sg_tablesize); - dma_unmap_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); - scp->result = HOST_BYTE(DID_ERROR); + printk + (" cdb_len %u, done_status 0x%x, host_status 0x%x, scsi_status 0x%x\n", + q->cdb_len, q->done_status, q->host_status, q->scsi_status); - /* - * Free the 'adv_req_t' structure by adding it back - * to the board free list. - */ - reqp->next_reqp = boardp->adv_reqp; - boardp->adv_reqp = reqp; + printk(" sg_working_ix 0x%x, target_cmd %u\n", + q->sg_working_ix, q->target_cmd); - return ASC_ERROR; - } + printk(" scsiq_rptr 0x%lx, sg_real_addr 0x%lx, sg_list_ptr 0x%lx\n", + (ulong)le32_to_cpu(q->scsiq_rptr), + (ulong)le32_to_cpu(q->sg_real_addr), (ulong)q->sg_list_ptr); - ret = adv_get_sglist(boardp, reqp, scp, use_sg); - if (ret != ADV_SUCCESS) { + /* Display the request's ADV_SG_BLOCK structures. */ + if (q->sg_list_ptr != NULL) { + sg_blk_cnt = 0; + while (1) { /* - * Free the adv_req_t structure by adding it back to - * the board free list. + * 'sg_ptr' is a physical address. Convert it to a virtual + * address by indexing 'sg_blk_cnt' into the virtual address + * array 'sg_list_ptr'. + * + * XXX - Assumes all SG physical blocks are virtually contiguous. */ - reqp->next_reqp = boardp->adv_reqp; - boardp->adv_reqp = reqp; - - return ret; + sg_ptr = + &(((ADV_SG_BLOCK *)(q->sg_list_ptr))[sg_blk_cnt]); + asc_prt_adv_sgblock(sg_blk_cnt, sg_ptr); + if (sg_ptr->sg_ptr == 0) { + break; + } + sg_blk_cnt++; } - - ASC_STATS(scp->device->host, sg_cnt); - ASC_STATS_ADD(scp->device->host, sg_elem, use_sg); } - - ASC_DBG_PRT_ADV_SCSI_REQ_Q(2, scsiqp); - ASC_DBG_PRT_CDB(1, scp->cmnd, scp->cmd_len); - - *adv_scsiqpp = scsiqp; - - return ASC_NOERROR; } /* - * Build scatter-gather list for Adv Library (Wide Board). - * - * Additional ADV_SG_BLOCK structures will need to be allocated - * if the total number of scatter-gather elements exceeds - * NO_OF_SG_PER_BLOCK (15). The ADV_SG_BLOCK structures are - * assumed to be physically contiguous. + * asc_prt_adv_sgblock() * - * Return: - * ADV_SUCCESS(1) - SG List successfully created - * ADV_ERROR(-1) - SG List creation failed + * Display an ADV_SG_BLOCK structure. */ -static int -adv_get_sglist(asc_board_t *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, - int use_sg) +static void asc_prt_adv_sgblock(int sgblockno, ADV_SG_BLOCK *b) { - adv_sgblk_t *sgblkp; - ADV_SCSI_REQ_Q *scsiqp; - struct scatterlist *slp; - int sg_elem_cnt; - ADV_SG_BLOCK *sg_block, *prev_sg_block; - ADV_PADDR sg_block_paddr; int i; - scsiqp = (ADV_SCSI_REQ_Q *)ADV_32BALIGN(&reqp->scsi_req_q); - slp = (struct scatterlist *)scp->request_buffer; - sg_elem_cnt = use_sg; - prev_sg_block = NULL; - reqp->sgblkp = NULL; - - for (;;) { - /* - * Allocate a 'adv_sgblk_t' structure from the board free - * list. One 'adv_sgblk_t' structure holds NO_OF_SG_PER_BLOCK - * (15) scatter-gather elements. - */ - if ((sgblkp = boardp->adv_sgblkp) == NULL) { - ASC_DBG(1, "adv_get_sglist: no free adv_sgblk_t\n"); - ASC_STATS(scp->device->host, adv_build_nosg); - - /* - * Allocation failed. Free 'adv_sgblk_t' structures - * already allocated for the request. - */ - while ((sgblkp = reqp->sgblkp) != NULL) { - /* Remove 'sgblkp' from the request list. */ - reqp->sgblkp = sgblkp->next_sgblkp; - - /* Add 'sgblkp' to the board free list. */ - sgblkp->next_sgblkp = boardp->adv_sgblkp; - boardp->adv_sgblkp = sgblkp; - } - return ASC_BUSY; - } - - /* Complete 'adv_sgblk_t' board allocation. */ - boardp->adv_sgblkp = sgblkp->next_sgblkp; - sgblkp->next_sgblkp = NULL; - - /* - * Get 8 byte aligned virtual and physical addresses - * for the allocated ADV_SG_BLOCK structure. - */ - sg_block = (ADV_SG_BLOCK *)ADV_8BALIGN(&sgblkp->sg_block); - sg_block_paddr = virt_to_bus(sg_block); - - /* - * Check if this is the first 'adv_sgblk_t' for the - * request. - */ - if (reqp->sgblkp == NULL) { - /* Request's first scatter-gather block. */ - reqp->sgblkp = sgblkp; - - /* - * Set ADV_SCSI_REQ_T ADV_SG_BLOCK virtual and physical - * address pointers. - */ - scsiqp->sg_list_ptr = sg_block; - scsiqp->sg_real_addr = cpu_to_le32(sg_block_paddr); - } else { - /* Request's second or later scatter-gather block. */ - sgblkp->next_sgblkp = reqp->sgblkp; - reqp->sgblkp = sgblkp; - - /* - * Point the previous ADV_SG_BLOCK structure to - * the newly allocated ADV_SG_BLOCK structure. - */ - prev_sg_block->sg_ptr = cpu_to_le32(sg_block_paddr); - } - - for (i = 0; i < NO_OF_SG_PER_BLOCK; i++) { - sg_block->sg_list[i].sg_addr = - cpu_to_le32(sg_dma_address(slp)); - sg_block->sg_list[i].sg_count = - cpu_to_le32(sg_dma_len(slp)); - ASC_STATS_ADD(scp->device->host, sg_xfer, - ASC_CEILING(sg_dma_len(slp), 512)); - - if (--sg_elem_cnt == 0) { /* Last ADV_SG_BLOCK and scatter-gather entry. */ - sg_block->sg_cnt = i + 1; - sg_block->sg_ptr = 0L; /* Last ADV_SG_BLOCK in list. */ - return ADV_SUCCESS; - } - slp++; - } - sg_block->sg_cnt = NO_OF_SG_PER_BLOCK; - prev_sg_block = sg_block; + printk(" ASC_SG_BLOCK at addr 0x%lx (sgblockno %d)\n", + (ulong)b, sgblockno); + printk(" sg_cnt %u, sg_ptr 0x%lx\n", + b->sg_cnt, (ulong)le32_to_cpu(b->sg_ptr)); + BUG_ON(b->sg_cnt > NO_OF_SG_PER_BLOCK); + if (b->sg_ptr != 0) + BUG_ON(b->sg_cnt != NO_OF_SG_PER_BLOCK); + for (i = 0; i < b->sg_cnt; i++) { + printk(" [%u]: sg_addr 0x%lx, sg_count 0x%lx\n", + i, (ulong)b->sg_list[i].sg_addr, + (ulong)b->sg_list[i].sg_count); } } /* - * asc_isr_callback() - Second Level Interrupt Handler called by AscISR(). + * asc_prt_hex() * - * Interrupt callback function for the Narrow SCSI Asc Library. + * Print hexadecimal output in 4 byte groupings 32 bytes + * or 8 double-words per line. */ -static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) +static void asc_prt_hex(char *f, uchar *s, int l) { - asc_board_t *boardp; - struct scsi_cmnd *scp; - struct Scsi_Host *shost; - - ASC_DBG2(1, "asc_isr_callback: asc_dvc_varp 0x%lx, qdonep 0x%lx\n", - (ulong)asc_dvc_varp, (ulong)qdonep); - ASC_DBG_PRT_ASC_QDONE_INFO(2, qdonep); - - /* - * Get the struct scsi_cmnd structure and Scsi_Host structure for the - * command that has been completed. - */ - scp = (struct scsi_cmnd *)ASC_U32_TO_VADDR(qdonep->d2.srb_ptr); - ASC_DBG1(1, "asc_isr_callback: scp 0x%lx\n", (ulong)scp); - - if (scp == NULL) { - ASC_PRINT("asc_isr_callback: scp is NULL\n"); - return; - } - ASC_DBG_PRT_CDB(2, scp->cmnd, scp->cmd_len); - - shost = scp->device->host; - ASC_STATS(shost, callback); - ASC_DBG1(1, "asc_isr_callback: shost 0x%lx\n", (ulong)shost); + int i; + int j; + int k; + int m; - boardp = ASC_BOARDP(shost); - BUG_ON(asc_dvc_varp != &boardp->dvc_var.asc_dvc_var); + printk("%s: (%d bytes)\n", f, l); - /* - * 'qdonep' contains the command's ending status. - */ - switch (qdonep->d3.done_stat) { - case QD_NO_ERROR: - ASC_DBG(2, "asc_isr_callback: QD_NO_ERROR\n"); - scp->result = 0; + for (i = 0; i < l; i += 32) { - /* - * Check for an underrun condition. - * - * If there was no error and an underrun condition, then - * return the number of underrun bytes. - */ - if (scp->request_bufflen != 0 && qdonep->remain_bytes != 0 && - qdonep->remain_bytes <= scp->request_bufflen) { - ASC_DBG1(1, - "asc_isr_callback: underrun condition %u bytes\n", - (unsigned)qdonep->remain_bytes); - scp->resid = qdonep->remain_bytes; + /* Display a maximum of 8 double-words per line. */ + if ((k = (l - i) / 4) >= 8) { + k = 8; + m = 0; + } else { + m = (l - i) % 4; } - break; - case QD_WITH_ERROR: - ASC_DBG(2, "asc_isr_callback: QD_WITH_ERROR\n"); - switch (qdonep->d3.host_stat) { - case QHSTA_NO_ERROR: - if (qdonep->d3.scsi_stat == SAM_STAT_CHECK_CONDITION) { - ASC_DBG(2, - "asc_isr_callback: SAM_STAT_CHECK_CONDITION\n"); - ASC_DBG_PRT_SENSE(2, scp->sense_buffer, - sizeof(scp->sense_buffer)); - /* - * Note: The 'status_byte()' macro used by - * target drivers defined in scsi.h shifts the - * status byte returned by host drivers right - * by 1 bit. This is why target drivers also - * use right shifted status byte definitions. - * For instance target drivers use - * CHECK_CONDITION, defined to 0x1, instead of - * the SCSI defined check condition value of - * 0x2. Host drivers are supposed to return - * the status byte as it is defined by SCSI. - */ - scp->result = DRIVER_BYTE(DRIVER_SENSE) | - STATUS_BYTE(qdonep->d3.scsi_stat); - } else { - scp->result = STATUS_BYTE(qdonep->d3.scsi_stat); - } - break; + for (j = 0; j < k; j++) { + printk(" %2.2X%2.2X%2.2X%2.2X", + (unsigned)s[i + (j * 4)], + (unsigned)s[i + (j * 4) + 1], + (unsigned)s[i + (j * 4) + 2], + (unsigned)s[i + (j * 4) + 3]); + } + switch (m) { + case 0: default: - /* QHSTA error occurred */ - ASC_DBG1(1, "asc_isr_callback: host_stat 0x%x\n", - qdonep->d3.host_stat); - scp->result = HOST_BYTE(DID_BAD_TARGET); + break; + case 1: + printk(" %2.2X", (unsigned)s[i + (j * 4)]); + break; + case 2: + printk(" %2.2X%2.2X", + (unsigned)s[i + (j * 4)], + (unsigned)s[i + (j * 4) + 1]); + break; + case 3: + printk(" %2.2X%2.2X%2.2X", + (unsigned)s[i + (j * 4) + 1], + (unsigned)s[i + (j * 4) + 2], + (unsigned)s[i + (j * 4) + 3]); break; } - break; - - case QD_ABORTED_BY_HOST: - ASC_DBG(1, "asc_isr_callback: QD_ABORTED_BY_HOST\n"); - scp->result = - HOST_BYTE(DID_ABORT) | MSG_BYTE(qdonep->d3. - scsi_msg) | - STATUS_BYTE(qdonep->d3.scsi_stat); - break; - - default: - ASC_DBG1(1, "asc_isr_callback: done_stat 0x%x\n", - qdonep->d3.done_stat); - scp->result = - HOST_BYTE(DID_ERROR) | MSG_BYTE(qdonep->d3. - scsi_msg) | - STATUS_BYTE(qdonep->d3.scsi_stat); - break; - } - /* - * If the 'init_tidmask' bit isn't already set for the target and the - * current request finished normally, then set the bit for the target - * to indicate that a device is present. - */ - if ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(scp->device->id)) == 0 && - qdonep->d3.done_stat == QD_NO_ERROR && - qdonep->d3.host_stat == QHSTA_NO_ERROR) { - boardp->init_tidmask |= ADV_TID_TO_TIDMASK(scp->device->id); + printk("\n"); } - - asc_scsi_done(scp); - - return; } +#endif /* ADVANSYS_DEBUG */ /* - * adv_isr_callback() - Second Level Interrupt Handler called by AdvISR(). + * advansys_info() * - * Callback function for the Wide SCSI Adv Library. + * Return suitable for printing on the console with the argument + * adapter's configuration information. + * + * Note: The information line should not exceed ASC_INFO_SIZE bytes, + * otherwise the static 'info' array will be overrun. */ -static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) +static const char *advansys_info(struct Scsi_Host *shost) { + static char info[ASC_INFO_SIZE]; asc_board_t *boardp; - adv_req_t *reqp; - adv_sgblk_t *sgblkp; - struct scsi_cmnd *scp; - struct Scsi_Host *shost; - ADV_DCNT resid_cnt; - - ASC_DBG2(1, "adv_isr_callback: adv_dvc_varp 0x%lx, scsiqp 0x%lx\n", - (ulong)adv_dvc_varp, (ulong)scsiqp); - ASC_DBG_PRT_ADV_SCSI_REQ_Q(2, scsiqp); - - /* - * Get the adv_req_t structure for the command that has been - * completed. The adv_req_t structure actually contains the - * completed ADV_SCSI_REQ_Q structure. - */ - reqp = (adv_req_t *)ADV_U32_TO_VADDR(scsiqp->srb_ptr); - ASC_DBG1(1, "adv_isr_callback: reqp 0x%lx\n", (ulong)reqp); - if (reqp == NULL) { - ASC_PRINT("adv_isr_callback: reqp is NULL\n"); - return; - } - - /* - * Get the struct scsi_cmnd structure and Scsi_Host structure for the - * command that has been completed. - * - * Note: The adv_req_t request structure and adv_sgblk_t structure, - * if any, are dropped, because a board structure pointer can not be - * determined. - */ - scp = reqp->cmndp; - ASC_DBG1(1, "adv_isr_callback: scp 0x%lx\n", (ulong)scp); - if (scp == NULL) { - ASC_PRINT - ("adv_isr_callback: scp is NULL; adv_req_t dropped.\n"); - return; - } - ASC_DBG_PRT_CDB(2, scp->cmnd, scp->cmd_len); - - shost = scp->device->host; - ASC_STATS(shost, callback); - ASC_DBG1(1, "adv_isr_callback: shost 0x%lx\n", (ulong)shost); + ASC_DVC_VAR *asc_dvc_varp; + ADV_DVC_VAR *adv_dvc_varp; + char *busname; + char *widename = NULL; boardp = ASC_BOARDP(shost); - BUG_ON(adv_dvc_varp != &boardp->dvc_var.adv_dvc_var); - - /* - * 'done_status' contains the command's ending status. - */ - switch (scsiqp->done_status) { - case QD_NO_ERROR: - ASC_DBG(2, "adv_isr_callback: QD_NO_ERROR\n"); - scp->result = 0; - + if (ASC_NARROW_BOARD(boardp)) { + asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; + ASC_DBG(1, "advansys_info: begin\n"); + if (asc_dvc_varp->bus_type & ASC_IS_ISA) { + if ((asc_dvc_varp->bus_type & ASC_IS_ISAPNP) == + ASC_IS_ISAPNP) { + busname = "ISA PnP"; + } else { + busname = "ISA"; + } + sprintf(info, + "AdvanSys SCSI %s: %s: IO 0x%lX-0x%lX, IRQ 0x%X, DMA 0x%X", + ASC_VERSION, busname, + (ulong)shost->io_port, + (ulong)shost->io_port + ASC_IOADR_GAP - 1, + shost->irq, shost->dma_channel); + } else { + if (asc_dvc_varp->bus_type & ASC_IS_VL) { + busname = "VL"; + } else if (asc_dvc_varp->bus_type & ASC_IS_EISA) { + busname = "EISA"; + } else if (asc_dvc_varp->bus_type & ASC_IS_PCI) { + if ((asc_dvc_varp->bus_type & ASC_IS_PCI_ULTRA) + == ASC_IS_PCI_ULTRA) { + busname = "PCI Ultra"; + } else { + busname = "PCI"; + } + } else { + busname = "?"; + ASC_PRINT2("advansys_info: board %d: unknown " + "bus type %d\n", boardp->id, + asc_dvc_varp->bus_type); + } + sprintf(info, + "AdvanSys SCSI %s: %s: IO 0x%lX-0x%lX, IRQ 0x%X", + ASC_VERSION, busname, (ulong)shost->io_port, + (ulong)shost->io_port + ASC_IOADR_GAP - 1, + shost->irq); + } + } else { /* - * Check for an underrun condition. + * Wide Adapter Information * - * If there was no error and an underrun condition, then - * then return the number of underrun bytes. + * Memory-mapped I/O is used instead of I/O space to access + * the adapter, but display the I/O Port range. The Memory + * I/O address is displayed through the driver /proc file. */ - resid_cnt = le32_to_cpu(scsiqp->data_cnt); - if (scp->request_bufflen != 0 && resid_cnt != 0 && - resid_cnt <= scp->request_bufflen) { - ASC_DBG1(1, - "adv_isr_callback: underrun condition %lu bytes\n", - (ulong)resid_cnt); - scp->resid = resid_cnt; - } - break; - - case QD_WITH_ERROR: - ASC_DBG(2, "adv_isr_callback: QD_WITH_ERROR\n"); - switch (scsiqp->host_status) { - case QHSTA_NO_ERROR: - if (scsiqp->scsi_status == SAM_STAT_CHECK_CONDITION) { - ASC_DBG(2, - "adv_isr_callback: SAM_STAT_CHECK_CONDITION\n"); - ASC_DBG_PRT_SENSE(2, scp->sense_buffer, - sizeof(scp->sense_buffer)); - /* - * Note: The 'status_byte()' macro used by - * target drivers defined in scsi.h shifts the - * status byte returned by host drivers right - * by 1 bit. This is why target drivers also - * use right shifted status byte definitions. - * For instance target drivers use - * CHECK_CONDITION, defined to 0x1, instead of - * the SCSI defined check condition value of - * 0x2. Host drivers are supposed to return - * the status byte as it is defined by SCSI. - */ - scp->result = DRIVER_BYTE(DRIVER_SENSE) | - STATUS_BYTE(scsiqp->scsi_status); - } else { - scp->result = STATUS_BYTE(scsiqp->scsi_status); - } - break; - - default: - /* Some other QHSTA error occurred. */ - ASC_DBG1(1, "adv_isr_callback: host_status 0x%x\n", - scsiqp->host_status); - scp->result = HOST_BYTE(DID_BAD_TARGET); - break; + adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; + if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { + widename = "Ultra-Wide"; + } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) { + widename = "Ultra2-Wide"; + } else { + widename = "Ultra3-Wide"; } - break; - - case QD_ABORTED_BY_HOST: - ASC_DBG(1, "adv_isr_callback: QD_ABORTED_BY_HOST\n"); - scp->result = - HOST_BYTE(DID_ABORT) | STATUS_BYTE(scsiqp->scsi_status); - break; - - default: - ASC_DBG1(1, "adv_isr_callback: done_status 0x%x\n", - scsiqp->done_status); - scp->result = - HOST_BYTE(DID_ERROR) | STATUS_BYTE(scsiqp->scsi_status); - break; - } - - /* - * If the 'init_tidmask' bit isn't already set for the target and the - * current request finished normally, then set the bit for the target - * to indicate that a device is present. - */ - if ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(scp->device->id)) == 0 && - scsiqp->done_status == QD_NO_ERROR && - scsiqp->host_status == QHSTA_NO_ERROR) { - boardp->init_tidmask |= ADV_TID_TO_TIDMASK(scp->device->id); - } - - asc_scsi_done(scp); - - /* - * Free all 'adv_sgblk_t' structures allocated for the request. - */ - while ((sgblkp = reqp->sgblkp) != NULL) { - /* Remove 'sgblkp' from the request list. */ - reqp->sgblkp = sgblkp->next_sgblkp; - - /* Add 'sgblkp' to the board free list. */ - sgblkp->next_sgblkp = boardp->adv_sgblkp; - boardp->adv_sgblkp = sgblkp; + sprintf(info, + "AdvanSys SCSI %s: PCI %s: PCIMEM 0x%lX-0x%lX, IRQ 0x%X", + ASC_VERSION, widename, (ulong)adv_dvc_varp->iop_base, + (ulong)adv_dvc_varp->iop_base + boardp->asc_n_io_port - 1, shost->irq); } - - /* - * Free the adv_req_t structure used with the command by adding - * it back to the board free list. - */ - reqp->next_reqp = boardp->adv_reqp; - boardp->adv_reqp = reqp; - - ASC_DBG(1, "adv_isr_callback: done\n"); - - return; + BUG_ON(strlen(info) >= ASC_INFO_SIZE); + ASC_DBG(1, "advansys_info: end\n"); + return info; } +#ifdef CONFIG_PROC_FS /* - * adv_async_callback() - Adv Library asynchronous event callback function. + * asc_prt_line() + * + * If 'cp' is NULL print to the console, otherwise print to a buffer. + * + * Return 0 if printing to the console, otherwise return the number of + * bytes written to the buffer. + * + * Note: If any single line is greater than ASC_PRTLINE_SIZE bytes the stack + * will be corrupted. 's[]' is defined to be ASC_PRTLINE_SIZE bytes. */ -static void adv_async_callback(ADV_DVC_VAR *adv_dvc_varp, uchar code) +static int asc_prt_line(char *buf, int buflen, char *fmt, ...) { - switch (code) { - case ADV_ASYNC_SCSI_BUS_RESET_DET: - /* - * The firmware detected a SCSI Bus reset. - */ - ASC_DBG(0, - "adv_async_callback: ADV_ASYNC_SCSI_BUS_RESET_DET\n"); - break; - - case ADV_ASYNC_RDMA_FAILURE: - /* - * Handle RDMA failure by resetting the SCSI Bus and - * possibly the chip if it is unresponsive. Log the error - * with a unique code. - */ - ASC_DBG(0, "adv_async_callback: ADV_ASYNC_RDMA_FAILURE\n"); - AdvResetChipAndSB(adv_dvc_varp); - break; - - case ADV_HOST_SCSI_BUS_RESET: - /* - * Host generated SCSI bus reset occurred. - */ - ASC_DBG(0, "adv_async_callback: ADV_HOST_SCSI_BUS_RESET\n"); - break; + va_list args; + int ret; + char s[ASC_PRTLINE_SIZE]; - default: - ASC_DBG1(0, "DvcAsyncCallBack: unknown code 0x%x\n", code); - break; + va_start(args, fmt); + ret = vsprintf(s, fmt, args); + BUG_ON(ret >= ASC_PRTLINE_SIZE); + if (buf == NULL) { + (void)printk(s); + ret = 0; + } else { + ret = min(buflen, ret); + memcpy(buf, s, ret); } + va_end(args); + return ret; } -#ifdef CONFIG_PROC_FS /* * asc_prt_board_devices() * @@ -5548,159 +4212,7 @@ asc_proc_copy(off_t advoffset, off_t offset, char *curbuf, int leftlen, return cnt; } -/* - * asc_prt_line() - * - * If 'cp' is NULL print to the console, otherwise print to a buffer. - * - * Return 0 if printing to the console, otherwise return the number of - * bytes written to the buffer. - * - * Note: If any single line is greater than ASC_PRTLINE_SIZE bytes the stack - * will be corrupted. 's[]' is defined to be ASC_PRTLINE_SIZE bytes. - */ -static int asc_prt_line(char *buf, int buflen, char *fmt, ...) -{ - va_list args; - int ret; - char s[ASC_PRTLINE_SIZE]; - - va_start(args, fmt); - ret = vsprintf(s, fmt, args); - BUG_ON(ret >= ASC_PRTLINE_SIZE); - if (buf == NULL) { - (void)printk(s); - ret = 0; - } else { - ret = min(buflen, ret); - memcpy(buf, s, ret); - } - va_end(args); - return ret; -} -#endif /* CONFIG_PROC_FS */ - -/* - * void - * DvcPutScsiQ(PortAddr iop_base, ushort s_addr, uchar *outbuf, int words) - * - * Calling/Exit State: - * none - * - * Description: - * Output an ASC_SCSI_Q structure to the chip - */ -static void -DvcPutScsiQ(PortAddr iop_base, ushort s_addr, uchar *outbuf, int words) -{ - int i; - - ASC_DBG_PRT_HEX(2, "DvcPutScsiQ", outbuf, 2 * words); - AscSetChipLramAddr(iop_base, s_addr); - for (i = 0; i < 2 * words; i += 2) { - if (i == 4 || i == 20) { - continue; - } - outpw(iop_base + IOP_RAM_DATA, - ((ushort)outbuf[i + 1] << 8) | outbuf[i]); - } -} - -/* - * void - * DvcGetQinfo(PortAddr iop_base, ushort s_addr, uchar *inbuf, int words) - * - * Calling/Exit State: - * none - * - * Description: - * Input an ASC_QDONE_INFO structure from the chip - */ -static void -DvcGetQinfo(PortAddr iop_base, ushort s_addr, uchar *inbuf, int words) -{ - int i; - ushort word; - - AscSetChipLramAddr(iop_base, s_addr); - for (i = 0; i < 2 * words; i += 2) { - if (i == 10) { - continue; - } - word = inpw(iop_base + IOP_RAM_DATA); - inbuf[i] = word & 0xff; - inbuf[i + 1] = (word >> 8) & 0xff; - } - ASC_DBG_PRT_HEX(2, "DvcGetQinfo", inbuf, 2 * words); -} - -/* - * Return the BIOS address of the adapter at the specified - * I/O port and with the specified bus type. - */ -static unsigned short __devinit -AscGetChipBiosAddress(PortAddr iop_base, unsigned short bus_type) -{ - unsigned short cfg_lsw; - unsigned short bios_addr; - - /* - * The PCI BIOS is re-located by the motherboard BIOS. Because - * of this the driver can not determine where a PCI BIOS is - * loaded and executes. - */ - if (bus_type & ASC_IS_PCI) - return 0; - -#ifdef CONFIG_ISA - if ((bus_type & ASC_IS_EISA) != 0) { - cfg_lsw = AscGetEisaChipCfg(iop_base); - cfg_lsw &= 0x000F; - bios_addr = ASC_BIOS_MIN_ADDR + cfg_lsw * ASC_BIOS_BANK_SIZE; - return bios_addr; - } -#endif /* CONFIG_ISA */ - - cfg_lsw = AscGetChipCfgLsw(iop_base); - - /* - * ISA PnP uses the top bit as the 32K BIOS flag - */ - if (bus_type == ASC_IS_ISAPNP) - cfg_lsw &= 0x7FFF; - bios_addr = ASC_BIOS_MIN_ADDR + (cfg_lsw >> 12) * ASC_BIOS_BANK_SIZE; - return bios_addr; -} - -/* - * DvcGetPhyAddr() - * - * Return the physical address of 'vaddr' and set '*lenp' to the - * number of physically contiguous bytes that follow 'vaddr'. - * 'flag' indicates the type of structure whose physical address - * is being translated. - * - * Note: Because Linux currently doesn't page the kernel and all - * kernel buffers are physically contiguous, leave '*lenp' unchanged. - */ -ADV_PADDR -DvcGetPhyAddr(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq, - uchar *vaddr, ADV_SDCNT *lenp, int flag) -{ - ADV_PADDR paddr; - - paddr = virt_to_bus(vaddr); - - ASC_DBG4(4, - "DvcGetPhyAddr: vaddr 0x%lx, lenp 0x%lx *lenp %lu, paddr 0x%lx\n", - (ulong)vaddr, (ulong)lenp, (ulong)*((ulong *)lenp), - (ulong)paddr); - - return paddr; -} - #ifdef ADVANSYS_STATS -#ifdef CONFIG_PROC_FS /* * asc_prt_board_stats() * @@ -5803,420 +4315,543 @@ static int asc_prt_board_stats(struct Scsi_Host *shost, char *cp, int cplen) return totlen; } -#endif /* CONFIG_PROC_FS */ #endif /* ADVANSYS_STATS */ -#ifdef ADVANSYS_DEBUG /* - * asc_prt_scsi_host() + * advansys_proc_info() - /proc/scsi/advansys/{0,1,2,3,...} + * + * *buffer: I/O buffer + * **start: if inout == FALSE pointer into buffer where user read should start + * offset: current offset into a /proc/scsi/advansys/[0...] file + * length: length of buffer + * hostno: Scsi_Host host_no + * inout: TRUE - user is writing; FALSE - user is reading + * + * Return the number of bytes read from or written to a + * /proc/scsi/advansys/[0...] file. + * + * Note: This function uses the per board buffer 'prtbuf' which is + * allocated when the board is initialized in advansys_detect(). The + * buffer is ASC_PRTBUF_SIZE bytes. The function asc_proc_copy() is + * used to write to the buffer. The way asc_proc_copy() is written + * if 'prtbuf' is too small it will not be overwritten. Instead the + * user just won't get all the available statistics. */ -static void asc_prt_scsi_host(struct Scsi_Host *s) +static int +advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, + off_t offset, int length, int inout) { asc_board_t *boardp; + char *cp; + int cplen; + int cnt; + int totcnt; + int leftlen; + char *curbuf; + off_t advoffset; - boardp = ASC_BOARDP(s); + ASC_DBG(1, "advansys_proc_info: begin\n"); - printk("Scsi_Host at addr 0x%lx\n", (ulong)s); - printk(" host_busy %u, host_no %d, last_reset %d,\n", - s->host_busy, s->host_no, (unsigned)s->last_reset); + /* + * User write not supported. + */ + if (inout == TRUE) { + return (-ENOSYS); + } - printk(" base 0x%lx, io_port 0x%lx, irq 0x%x,\n", - (ulong)s->base, (ulong)s->io_port, s->irq); + /* + * User read of /proc/scsi/advansys/[0...] file. + */ - printk(" dma_channel %d, this_id %d, can_queue %d,\n", - s->dma_channel, s->this_id, s->can_queue); + boardp = ASC_BOARDP(shost); - printk(" cmd_per_lun %d, sg_tablesize %d, unchecked_isa_dma %d\n", - s->cmd_per_lun, s->sg_tablesize, s->unchecked_isa_dma); + /* Copy read data starting at the beginning of the buffer. */ + *start = buffer; + curbuf = buffer; + advoffset = 0; + totcnt = 0; + leftlen = length; - if (ASC_NARROW_BOARD(boardp)) { - asc_prt_asc_dvc_var(&ASC_BOARDP(s)->dvc_var.asc_dvc_var); - asc_prt_asc_dvc_cfg(&ASC_BOARDP(s)->dvc_cfg.asc_dvc_cfg); - } else { - asc_prt_adv_dvc_var(&ASC_BOARDP(s)->dvc_var.adv_dvc_var); - asc_prt_adv_dvc_cfg(&ASC_BOARDP(s)->dvc_cfg.adv_dvc_cfg); + /* + * Get board configuration information. + * + * advansys_info() returns the board string from its own static buffer. + */ + cp = (char *)advansys_info(shost); + strcat(cp, "\n"); + cplen = strlen(cp); + /* Copy board information. */ + cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); + totcnt += cnt; + leftlen -= cnt; + if (leftlen == 0) { + ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); + return totcnt; } -} - -/* - * asc_prt_scsi_cmnd() - */ -static void asc_prt_scsi_cmnd(struct scsi_cmnd *s) -{ - printk("struct scsi_cmnd at addr 0x%lx\n", (ulong)s); + advoffset += cplen; + curbuf += cnt; - printk(" host 0x%lx, device 0x%lx, target %u, lun %u, channel %u,\n", - (ulong)s->device->host, (ulong)s->device, s->device->id, - s->device->lun, s->device->channel); + /* + * Display Wide Board BIOS Information. + */ + if (ASC_WIDE_BOARD(boardp)) { + cp = boardp->prtbuf; + cplen = asc_prt_adv_bios(shost, cp, ASC_PRTBUF_SIZE); + BUG_ON(cplen >= ASC_PRTBUF_SIZE); + cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, + cplen); + totcnt += cnt; + leftlen -= cnt; + if (leftlen == 0) { + ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); + return totcnt; + } + advoffset += cplen; + curbuf += cnt; + } - asc_prt_hex(" CDB", s->cmnd, s->cmd_len); + /* + * Display driver information for each device attached to the board. + */ + cp = boardp->prtbuf; + cplen = asc_prt_board_devices(shost, cp, ASC_PRTBUF_SIZE); + BUG_ON(cplen >= ASC_PRTBUF_SIZE); + cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); + totcnt += cnt; + leftlen -= cnt; + if (leftlen == 0) { + ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); + return totcnt; + } + advoffset += cplen; + curbuf += cnt; - printk("sc_data_direction %u, resid %d\n", - s->sc_data_direction, s->resid); + /* + * Display EEPROM configuration for the board. + */ + cp = boardp->prtbuf; + if (ASC_NARROW_BOARD(boardp)) { + cplen = asc_prt_asc_board_eeprom(shost, cp, ASC_PRTBUF_SIZE); + } else { + cplen = asc_prt_adv_board_eeprom(shost, cp, ASC_PRTBUF_SIZE); + } + BUG_ON(cplen >= ASC_PRTBUF_SIZE); + cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); + totcnt += cnt; + leftlen -= cnt; + if (leftlen == 0) { + ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); + return totcnt; + } + advoffset += cplen; + curbuf += cnt; - printk(" use_sg %u, sglist_len %u\n", s->use_sg, s->sglist_len); + /* + * Display driver configuration and information for the board. + */ + cp = boardp->prtbuf; + cplen = asc_prt_driver_conf(shost, cp, ASC_PRTBUF_SIZE); + BUG_ON(cplen >= ASC_PRTBUF_SIZE); + cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); + totcnt += cnt; + leftlen -= cnt; + if (leftlen == 0) { + ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); + return totcnt; + } + advoffset += cplen; + curbuf += cnt; - printk(" serial_number 0x%x, retries %d, allowed %d\n", - (unsigned)s->serial_number, s->retries, s->allowed); +#ifdef ADVANSYS_STATS + /* + * Display driver statistics for the board. + */ + cp = boardp->prtbuf; + cplen = asc_prt_board_stats(shost, cp, ASC_PRTBUF_SIZE); + BUG_ON(cplen >= ASC_PRTBUF_SIZE); + cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); + totcnt += cnt; + leftlen -= cnt; + if (leftlen == 0) { + ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); + return totcnt; + } + advoffset += cplen; + curbuf += cnt; +#endif /* ADVANSYS_STATS */ - printk(" timeout_per_command %d\n", s->timeout_per_command); + /* + * Display Asc Library dynamic configuration information + * for the board. + */ + cp = boardp->prtbuf; + if (ASC_NARROW_BOARD(boardp)) { + cplen = asc_prt_asc_board_info(shost, cp, ASC_PRTBUF_SIZE); + } else { + cplen = asc_prt_adv_board_info(shost, cp, ASC_PRTBUF_SIZE); + } + BUG_ON(cplen >= ASC_PRTBUF_SIZE); + cnt = asc_proc_copy(advoffset, offset, curbuf, leftlen, cp, cplen); + totcnt += cnt; + leftlen -= cnt; + if (leftlen == 0) { + ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); + return totcnt; + } + advoffset += cplen; + curbuf += cnt; - printk(" scsi_done 0x%p, done 0x%p, host_scribble 0x%p, result 0x%x\n", - s->scsi_done, s->done, s->host_scribble, s->result); + ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); - printk(" tag %u, pid %u\n", (unsigned)s->tag, (unsigned)s->pid); + return totcnt; } +#endif /* CONFIG_PROC_FS */ -/* - * asc_prt_asc_dvc_var() - */ -static void asc_prt_asc_dvc_var(ASC_DVC_VAR *h) +static void asc_scsi_done(struct scsi_cmnd *scp) { - printk("ASC_DVC_VAR at addr 0x%lx\n", (ulong)h); - - printk(" iop_base 0x%x, err_code 0x%x, dvc_cntl 0x%x, bug_fix_cntl " - "%d,\n", h->iop_base, h->err_code, h->dvc_cntl, h->bug_fix_cntl); - - printk(" bus_type %d, init_sdtr 0x%x,\n", h->bus_type, - (unsigned)h->init_sdtr); + struct asc_board *boardp = ASC_BOARDP(scp->device->host); - printk(" sdtr_done 0x%x, use_tagged_qng 0x%x, unit_not_ready 0x%x, " - "chip_no 0x%x,\n", (unsigned)h->sdtr_done, - (unsigned)h->use_tagged_qng, (unsigned)h->unit_not_ready, - (unsigned)h->chip_no); + if (scp->use_sg) + dma_unmap_sg(boardp->dev, + (struct scatterlist *)scp->request_buffer, + scp->use_sg, scp->sc_data_direction); + else if (scp->request_bufflen) + dma_unmap_single(boardp->dev, scp->SCp.dma_handle, + scp->request_bufflen, scp->sc_data_direction); - printk(" queue_full_or_busy 0x%x, start_motor 0x%x, scsi_reset_wait " - "%u,\n", (unsigned)h->queue_full_or_busy, - (unsigned)h->start_motor, (unsigned)h->scsi_reset_wait); + ASC_STATS(scp->device->host, done); - printk(" is_in_int %u, max_total_qng %u, cur_total_qng %u, " - "in_critical_cnt %u,\n", (unsigned)h->is_in_int, - (unsigned)h->max_total_qng, (unsigned)h->cur_total_qng, - (unsigned)h->in_critical_cnt); + scp->scsi_done(scp); +} - printk(" last_q_shortage %u, init_state 0x%x, no_scam 0x%x, " - "pci_fix_asyn_xfer 0x%x,\n", (unsigned)h->last_q_shortage, - (unsigned)h->init_state, (unsigned)h->no_scam, - (unsigned)h->pci_fix_asyn_xfer); +static void AscSetBank(PortAddr iop_base, uchar bank) +{ + uchar val; - printk(" cfg 0x%lx, irq_no 0x%x\n", (ulong)h->cfg, (unsigned)h->irq_no); + val = AscGetChipControl(iop_base) & + (~ + (CC_SINGLE_STEP | CC_TEST | CC_DIAG | CC_SCSI_RESET | + CC_CHIP_RESET)); + if (bank == 1) { + val |= CC_BANK_ONE; + } else if (bank == 2) { + val |= CC_DIAG | CC_BANK_ONE; + } else { + val &= ~CC_BANK_ONE; + } + AscSetChipControl(iop_base, val); + return; } -/* - * asc_prt_asc_dvc_cfg() - */ -static void asc_prt_asc_dvc_cfg(ASC_DVC_CFG *h) +static void AscSetChipIH(PortAddr iop_base, ushort ins_code) { - printk("ASC_DVC_CFG at addr 0x%lx\n", (ulong)h); - - printk(" can_tagged_qng 0x%x, cmd_qng_enabled 0x%x,\n", - h->can_tagged_qng, h->cmd_qng_enabled); - printk(" disc_enable 0x%x, sdtr_enable 0x%x,\n", - h->disc_enable, h->sdtr_enable); + AscSetBank(iop_base, 1); + AscWriteChipIH(iop_base, ins_code); + AscSetBank(iop_base, 0); + return; +} - printk - (" chip_scsi_id %d, isa_dma_speed %d, isa_dma_channel %d, chip_version %d,\n", - h->chip_scsi_id, h->isa_dma_speed, h->isa_dma_channel, - h->chip_version); +static int AscStartChip(PortAddr iop_base) +{ + AscSetChipControl(iop_base, 0); + if ((AscGetChipStatus(iop_base) & CSW_HALTED) != 0) { + return (0); + } + return (1); +} - printk - (" pci_device_id %d, lib_serial_no %u, lib_version %u, mcode_date 0x%x,\n", - to_pci_dev(h->dev)->device, h->lib_serial_no, h->lib_version, - h->mcode_date); +static int AscStopChip(PortAddr iop_base) +{ + uchar cc_val; - printk(" mcode_version %d, overrun_buf 0x%lx\n", - h->mcode_version, (ulong)h->overrun_buf); + cc_val = + AscGetChipControl(iop_base) & + (~(CC_SINGLE_STEP | CC_TEST | CC_DIAG)); + AscSetChipControl(iop_base, (uchar)(cc_val | CC_HALT)); + AscSetChipIH(iop_base, INS_HALT); + AscSetChipIH(iop_base, INS_RFLAG_WTM); + if ((AscGetChipStatus(iop_base) & CSW_HALTED) == 0) { + return (0); + } + return (1); } -/* - * asc_prt_asc_scsi_q() - */ -static void asc_prt_asc_scsi_q(ASC_SCSI_Q *q) +static int AscIsChipHalted(PortAddr iop_base) { - ASC_SG_HEAD *sgp; - int i; - - printk("ASC_SCSI_Q at addr 0x%lx\n", (ulong)q); + if ((AscGetChipStatus(iop_base) & CSW_HALTED) != 0) { + if ((AscGetChipControl(iop_base) & CC_HALT) != 0) { + return (1); + } + } + return (0); +} - printk - (" target_ix 0x%x, target_lun %u, srb_ptr 0x%lx, tag_code 0x%x,\n", - q->q2.target_ix, q->q1.target_lun, (ulong)q->q2.srb_ptr, - q->q2.tag_code); +static int AscResetChipAndScsiBus(ASC_DVC_VAR *asc_dvc) +{ + PortAddr iop_base; + int i = 10; - printk - (" data_addr 0x%lx, data_cnt %lu, sense_addr 0x%lx, sense_len %u,\n", - (ulong)le32_to_cpu(q->q1.data_addr), - (ulong)le32_to_cpu(q->q1.data_cnt), - (ulong)le32_to_cpu(q->q1.sense_addr), q->q1.sense_len); + iop_base = asc_dvc->iop_base; + while ((AscGetChipStatus(iop_base) & CSW_SCSI_RESET_ACTIVE) + && (i-- > 0)) { + mdelay(100); + } + AscStopChip(iop_base); + AscSetChipControl(iop_base, CC_CHIP_RESET | CC_SCSI_RESET | CC_HALT); + udelay(60); + AscSetChipIH(iop_base, INS_RFLAG_WTM); + AscSetChipIH(iop_base, INS_HALT); + AscSetChipControl(iop_base, CC_CHIP_RESET | CC_HALT); + AscSetChipControl(iop_base, CC_HALT); + mdelay(200); + AscSetChipStatus(iop_base, CIW_CLR_SCSI_RESET_INT); + AscSetChipStatus(iop_base, 0); + return (AscIsChipHalted(iop_base)); +} - printk(" cdbptr 0x%lx, cdb_len %u, sg_head 0x%lx, sg_queue_cnt %u\n", - (ulong)q->cdbptr, q->q2.cdb_len, - (ulong)q->sg_head, q->q1.sg_queue_cnt); +static int AscFindSignature(PortAddr iop_base) +{ + ushort sig_word; - if (q->sg_head) { - sgp = q->sg_head; - printk("ASC_SG_HEAD at addr 0x%lx\n", (ulong)sgp); - printk(" entry_cnt %u, queue_cnt %u\n", sgp->entry_cnt, - sgp->queue_cnt); - for (i = 0; i < sgp->entry_cnt; i++) { - printk(" [%u]: addr 0x%lx, bytes %lu\n", - i, (ulong)le32_to_cpu(sgp->sg_list[i].addr), - (ulong)le32_to_cpu(sgp->sg_list[i].bytes)); + ASC_DBG2(1, "AscFindSignature: AscGetChipSignatureByte(0x%x) 0x%x\n", + iop_base, AscGetChipSignatureByte(iop_base)); + if (AscGetChipSignatureByte(iop_base) == (uchar)ASC_1000_ID1B) { + ASC_DBG2(1, + "AscFindSignature: AscGetChipSignatureWord(0x%x) 0x%x\n", + iop_base, AscGetChipSignatureWord(iop_base)); + sig_word = AscGetChipSignatureWord(iop_base); + if ((sig_word == (ushort)ASC_1000_ID0W) || + (sig_word == (ushort)ASC_1000_ID0W_FIX)) { + return (1); } - } + return (0); } -/* - * asc_prt_asc_qdone_info() - */ -static void asc_prt_asc_qdone_info(ASC_QDONE_INFO *q) +static void AscEnableInterrupt(PortAddr iop_base) { - printk("ASC_QDONE_INFO at addr 0x%lx\n", (ulong)q); - printk(" srb_ptr 0x%lx, target_ix %u, cdb_len %u, tag_code %u,\n", - (ulong)q->d2.srb_ptr, q->d2.target_ix, q->d2.cdb_len, - q->d2.tag_code); - printk - (" done_stat 0x%x, host_stat 0x%x, scsi_stat 0x%x, scsi_msg 0x%x\n", - q->d3.done_stat, q->d3.host_stat, q->d3.scsi_stat, q->d3.scsi_msg); + ushort cfg; + + cfg = AscGetChipCfgLsw(iop_base); + AscSetChipCfgLsw(iop_base, cfg | ASC_CFG0_HOST_INT_ON); + return; } -/* - * asc_prt_adv_dvc_var() - * - * Display an ADV_DVC_VAR structure. - */ -static void asc_prt_adv_dvc_var(ADV_DVC_VAR *h) +static void AscDisableInterrupt(PortAddr iop_base) { - printk(" ADV_DVC_VAR at addr 0x%lx\n", (ulong)h); + ushort cfg; - printk(" iop_base 0x%lx, err_code 0x%x, ultra_able 0x%x\n", - (ulong)h->iop_base, h->err_code, (unsigned)h->ultra_able); + cfg = AscGetChipCfgLsw(iop_base); + AscSetChipCfgLsw(iop_base, cfg & (~ASC_CFG0_HOST_INT_ON)); + return; +} - printk(" isr_callback 0x%lx, sdtr_able 0x%x, wdtr_able 0x%x\n", - (ulong)h->isr_callback, (unsigned)h->sdtr_able, - (unsigned)h->wdtr_able); +static uchar AscReadLramByte(PortAddr iop_base, ushort addr) +{ + unsigned char byte_data; + unsigned short word_data; - printk(" start_motor 0x%x, scsi_reset_wait 0x%x, irq_no 0x%x,\n", - (unsigned)h->start_motor, - (unsigned)h->scsi_reset_wait, (unsigned)h->irq_no); + if (isodd_word(addr)) { + AscSetChipLramAddr(iop_base, addr - 1); + word_data = AscGetChipLramData(iop_base); + byte_data = (word_data >> 8) & 0xFF; + } else { + AscSetChipLramAddr(iop_base, addr); + word_data = AscGetChipLramData(iop_base); + byte_data = word_data & 0xFF; + } + return byte_data; +} - printk(" max_host_qng %u, max_dvc_qng %u, carr_freelist 0x%lxn\n", - (unsigned)h->max_host_qng, (unsigned)h->max_dvc_qng, - (ulong)h->carr_freelist); +static ushort AscReadLramWord(PortAddr iop_base, ushort addr) +{ + ushort word_data; - printk(" icq_sp 0x%lx, irq_sp 0x%lx\n", - (ulong)h->icq_sp, (ulong)h->irq_sp); + AscSetChipLramAddr(iop_base, addr); + word_data = AscGetChipLramData(iop_base); + return (word_data); +} - printk(" no_scam 0x%x, tagqng_able 0x%x\n", - (unsigned)h->no_scam, (unsigned)h->tagqng_able); +#if CC_VERY_LONG_SG_LIST +static ASC_DCNT AscReadLramDWord(PortAddr iop_base, ushort addr) +{ + ushort val_low, val_high; + ASC_DCNT dword_data; - printk(" chip_scsi_id 0x%x, cfg 0x%lx\n", - (unsigned)h->chip_scsi_id, (ulong)h->cfg); + AscSetChipLramAddr(iop_base, addr); + val_low = AscGetChipLramData(iop_base); + val_high = AscGetChipLramData(iop_base); + dword_data = ((ASC_DCNT) val_high << 16) | (ASC_DCNT) val_low; + return (dword_data); } +#endif /* CC_VERY_LONG_SG_LIST */ -/* - * asc_prt_adv_dvc_cfg() - * - * Display an ADV_DVC_CFG structure. - */ -static void asc_prt_adv_dvc_cfg(ADV_DVC_CFG *h) +static void +AscMemWordSetLram(PortAddr iop_base, ushort s_addr, ushort set_wval, int words) { - printk(" ADV_DVC_CFG at addr 0x%lx\n", (ulong)h); + int i; - printk(" disc_enable 0x%x, termination 0x%x\n", - h->disc_enable, h->termination); + AscSetChipLramAddr(iop_base, s_addr); + for (i = 0; i < words; i++) { + AscSetChipLramData(iop_base, set_wval); + } +} - printk(" chip_version 0x%x, mcode_date 0x%x\n", - h->chip_version, h->mcode_date); +static void AscWriteLramWord(PortAddr iop_base, ushort addr, ushort word_val) +{ + AscSetChipLramAddr(iop_base, addr); + AscSetChipLramData(iop_base, word_val); + return; +} - printk(" mcode_version 0x%x, pci_device_id 0x%x, lib_version %u\n", - h->mcode_version, to_pci_dev(h->dev)->device, h->lib_version); +static void AscWriteLramByte(PortAddr iop_base, ushort addr, uchar byte_val) +{ + ushort word_data; - printk(" control_flag 0x%x\n", h->control_flag); + if (isodd_word(addr)) { + addr--; + word_data = AscReadLramWord(iop_base, addr); + word_data &= 0x00FF; + word_data |= (((ushort)byte_val << 8) & 0xFF00); + } else { + word_data = AscReadLramWord(iop_base, addr); + word_data &= 0xFF00; + word_data |= ((ushort)byte_val & 0x00FF); + } + AscWriteLramWord(iop_base, addr, word_data); + return; } /* - * asc_prt_adv_scsi_req_q() + * Copy 2 bytes to LRAM. * - * Display an ADV_SCSI_REQ_Q structure. + * The source data is assumed to be in little-endian order in memory + * and is maintained in little-endian order when written to LRAM. */ -static void asc_prt_adv_scsi_req_q(ADV_SCSI_REQ_Q *q) +static void +AscMemWordCopyPtrToLram(PortAddr iop_base, + ushort s_addr, uchar *s_buffer, int words) { - int sg_blk_cnt; - struct asc_sg_block *sg_ptr; - - printk("ADV_SCSI_REQ_Q at addr 0x%lx\n", (ulong)q); - - printk(" target_id %u, target_lun %u, srb_ptr 0x%lx, a_flag 0x%x\n", - q->target_id, q->target_lun, (ulong)q->srb_ptr, q->a_flag); - - printk(" cntl 0x%x, data_addr 0x%lx, vdata_addr 0x%lx\n", - q->cntl, (ulong)le32_to_cpu(q->data_addr), (ulong)q->vdata_addr); - - printk(" data_cnt %lu, sense_addr 0x%lx, sense_len %u,\n", - (ulong)le32_to_cpu(q->data_cnt), - (ulong)le32_to_cpu(q->sense_addr), q->sense_len); - - printk - (" cdb_len %u, done_status 0x%x, host_status 0x%x, scsi_status 0x%x\n", - q->cdb_len, q->done_status, q->host_status, q->scsi_status); - - printk(" sg_working_ix 0x%x, target_cmd %u\n", - q->sg_working_ix, q->target_cmd); - - printk(" scsiq_rptr 0x%lx, sg_real_addr 0x%lx, sg_list_ptr 0x%lx\n", - (ulong)le32_to_cpu(q->scsiq_rptr), - (ulong)le32_to_cpu(q->sg_real_addr), (ulong)q->sg_list_ptr); + int i; - /* Display the request's ADV_SG_BLOCK structures. */ - if (q->sg_list_ptr != NULL) { - sg_blk_cnt = 0; - while (1) { - /* - * 'sg_ptr' is a physical address. Convert it to a virtual - * address by indexing 'sg_blk_cnt' into the virtual address - * array 'sg_list_ptr'. - * - * XXX - Assumes all SG physical blocks are virtually contiguous. - */ - sg_ptr = - &(((ADV_SG_BLOCK *)(q->sg_list_ptr))[sg_blk_cnt]); - asc_prt_adv_sgblock(sg_blk_cnt, sg_ptr); - if (sg_ptr->sg_ptr == 0) { - break; - } - sg_blk_cnt++; - } + AscSetChipLramAddr(iop_base, s_addr); + for (i = 0; i < 2 * words; i += 2) { + /* + * On a little-endian system the second argument below + * produces a little-endian ushort which is written to + * LRAM in little-endian order. On a big-endian system + * the second argument produces a big-endian ushort which + * is "transparently" byte-swapped by outpw() and written + * in little-endian order to LRAM. + */ + outpw(iop_base + IOP_RAM_DATA, + ((ushort)s_buffer[i + 1] << 8) | s_buffer[i]); } + return; } /* - * asc_prt_adv_sgblock() + * Copy 4 bytes to LRAM. * - * Display an ADV_SG_BLOCK structure. + * The source data is assumed to be in little-endian order in memory + * and is maintained in little-endian order when writen to LRAM. */ -static void asc_prt_adv_sgblock(int sgblockno, ADV_SG_BLOCK *b) +static void +AscMemDWordCopyPtrToLram(PortAddr iop_base, + ushort s_addr, uchar *s_buffer, int dwords) { int i; - printk(" ASC_SG_BLOCK at addr 0x%lx (sgblockno %d)\n", - (ulong)b, sgblockno); - printk(" sg_cnt %u, sg_ptr 0x%lx\n", - b->sg_cnt, (ulong)le32_to_cpu(b->sg_ptr)); - BUG_ON(b->sg_cnt > NO_OF_SG_PER_BLOCK); - if (b->sg_ptr != 0) - BUG_ON(b->sg_cnt != NO_OF_SG_PER_BLOCK); - for (i = 0; i < b->sg_cnt; i++) { - printk(" [%u]: sg_addr 0x%lx, sg_count 0x%lx\n", - i, (ulong)b->sg_list[i].sg_addr, - (ulong)b->sg_list[i].sg_count); + AscSetChipLramAddr(iop_base, s_addr); + for (i = 0; i < 4 * dwords; i += 4) { + outpw(iop_base + IOP_RAM_DATA, ((ushort)s_buffer[i + 1] << 8) | s_buffer[i]); /* LSW */ + outpw(iop_base + IOP_RAM_DATA, ((ushort)s_buffer[i + 3] << 8) | s_buffer[i + 2]); /* MSW */ } + return; } /* - * asc_prt_hex() + * Copy 2 bytes from LRAM. * - * Print hexadecimal output in 4 byte groupings 32 bytes - * or 8 double-words per line. + * The source data is assumed to be in little-endian order in LRAM + * and is maintained in little-endian order when written to memory. */ -static void asc_prt_hex(char *f, uchar *s, int l) +static void +AscMemWordCopyPtrFromLram(PortAddr iop_base, + ushort s_addr, uchar *d_buffer, int words) { int i; - int j; - int k; - int m; - - printk("%s: (%d bytes)\n", f, l); - - for (i = 0; i < l; i += 32) { - - /* Display a maximum of 8 double-words per line. */ - if ((k = (l - i) / 4) >= 8) { - k = 8; - m = 0; - } else { - m = (l - i) % 4; - } - - for (j = 0; j < k; j++) { - printk(" %2.2X%2.2X%2.2X%2.2X", - (unsigned)s[i + (j * 4)], - (unsigned)s[i + (j * 4) + 1], - (unsigned)s[i + (j * 4) + 2], - (unsigned)s[i + (j * 4) + 3]); - } - - switch (m) { - case 0: - default: - break; - case 1: - printk(" %2.2X", (unsigned)s[i + (j * 4)]); - break; - case 2: - printk(" %2.2X%2.2X", - (unsigned)s[i + (j * 4)], - (unsigned)s[i + (j * 4) + 1]); - break; - case 3: - printk(" %2.2X%2.2X%2.2X", - (unsigned)s[i + (j * 4) + 1], - (unsigned)s[i + (j * 4) + 2], - (unsigned)s[i + (j * 4) + 3]); - break; - } + ushort word; - printk("\n"); + AscSetChipLramAddr(iop_base, s_addr); + for (i = 0; i < 2 * words; i += 2) { + word = inpw(iop_base + IOP_RAM_DATA); + d_buffer[i] = word & 0xff; + d_buffer[i + 1] = (word >> 8) & 0xff; } -} -#endif /* ADVANSYS_DEBUG */ - -static ushort __devinit AscGetEisaChipCfg(PortAddr iop_base) -{ - PortAddr eisa_cfg_iop; - - eisa_cfg_iop = (PortAddr) ASC_GET_EISA_SLOT(iop_base) | - (PortAddr) (ASC_EISA_CFG_IOP_MASK); - return (inpw(eisa_cfg_iop)); + return; } -static uchar __devinit AscSetChipScsiID(PortAddr iop_base, uchar new_host_id) +static ASC_DCNT AscMemSumLramWord(PortAddr iop_base, ushort s_addr, int words) { - ushort cfg_lsw; + ASC_DCNT sum; + int i; - if (AscGetChipScsiID(iop_base) == new_host_id) { - return (new_host_id); + sum = 0L; + for (i = 0; i < words; i++, s_addr += 2) { + sum += AscReadLramWord(iop_base, s_addr); } - cfg_lsw = AscGetChipCfgLsw(iop_base); - cfg_lsw &= 0xF8FF; - cfg_lsw |= (ushort)((new_host_id & ASC_MAX_TID) << 8); - AscSetChipCfgLsw(iop_base, cfg_lsw); - return (AscGetChipScsiID(iop_base)); + return (sum); } -static unsigned char __devinit AscGetChipScsiCtrl(PortAddr iop_base) +static ushort AscInitLram(ASC_DVC_VAR *asc_dvc) { - unsigned char sc; - - AscSetBank(iop_base, 1); - sc = inp(iop_base + IOP_REG_SC); - AscSetBank(iop_base, 0); - return sc; -} + uchar i; + ushort s_addr; + PortAddr iop_base; + ushort warn_code; -static unsigned char __devinit -AscGetChipVersion(PortAddr iop_base, unsigned short bus_type) -{ - if (bus_type & ASC_IS_EISA) { - PortAddr eisa_iop; - unsigned char revision; - eisa_iop = (PortAddr) ASC_GET_EISA_SLOT(iop_base) | - (PortAddr) ASC_EISA_REV_IOP_MASK; - revision = inp(eisa_iop); - return ASC_CHIP_MIN_VER_EISA - 1 + revision; + iop_base = asc_dvc->iop_base; + warn_code = 0; + AscMemWordSetLram(iop_base, ASC_QADR_BEG, 0, + (ushort)(((int)(asc_dvc->max_total_qng + 2 + 1) * + 64) >> 1)); + i = ASC_MIN_ACTIVE_QNO; + s_addr = ASC_QADR_BEG + ASC_QBLK_SIZE; + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD), + (uchar)(i + 1)); + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD), + (uchar)(asc_dvc->max_total_qng)); + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO), + (uchar)i); + i++; + s_addr += ASC_QBLK_SIZE; + for (; i < asc_dvc->max_total_qng; i++, s_addr += ASC_QBLK_SIZE) { + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD), + (uchar)(i + 1)); + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD), + (uchar)(i - 1)); + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO), + (uchar)i); } - return AscGetChipVerNo(iop_base); + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD), + (uchar)ASC_QLINK_END); + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD), + (uchar)(asc_dvc->max_total_qng - 1)); + AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO), + (uchar)asc_dvc->max_total_qng); + i++; + s_addr += ASC_QBLK_SIZE; + for (; i <= (uchar)(asc_dvc->max_total_qng + 3); + i++, s_addr += ASC_QBLK_SIZE) { + AscWriteLramByte(iop_base, + (ushort)(s_addr + (ushort)ASC_SCSIQ_B_FWD), i); + AscWriteLramByte(iop_base, + (ushort)(s_addr + (ushort)ASC_SCSIQ_B_BWD), i); + AscWriteLramByte(iop_base, + (ushort)(s_addr + (ushort)ASC_SCSIQ_B_QNO), i); + } + return warn_code; } static ASC_DCNT @@ -6247,865 +4882,6 @@ AscLoadMicroCode(PortAddr iop_base, return (chksum); } -static int AscFindSignature(PortAddr iop_base) -{ - ushort sig_word; - - ASC_DBG2(1, "AscFindSignature: AscGetChipSignatureByte(0x%x) 0x%x\n", - iop_base, AscGetChipSignatureByte(iop_base)); - if (AscGetChipSignatureByte(iop_base) == (uchar)ASC_1000_ID1B) { - ASC_DBG2(1, - "AscFindSignature: AscGetChipSignatureWord(0x%x) 0x%x\n", - iop_base, AscGetChipSignatureWord(iop_base)); - sig_word = AscGetChipSignatureWord(iop_base); - if ((sig_word == (ushort)ASC_1000_ID0W) || - (sig_word == (ushort)ASC_1000_ID0W_FIX)) { - return (1); - } - } - return (0); -} - -static void __devinit AscToggleIRQAct(PortAddr iop_base) -{ - AscSetChipStatus(iop_base, CIW_IRQ_ACT); - AscSetChipStatus(iop_base, 0); - return; -} - -static uchar __devinit AscGetChipIRQ(PortAddr iop_base, ushort bus_type) -{ - ushort cfg_lsw; - uchar chip_irq; - - if ((bus_type & ASC_IS_EISA) != 0) { - cfg_lsw = AscGetEisaChipCfg(iop_base); - chip_irq = (uchar)(((cfg_lsw >> 8) & 0x07) + 10); - if ((chip_irq == 13) || (chip_irq > 15)) { - return (0); - } - return (chip_irq); - } - if ((bus_type & ASC_IS_VL) != 0) { - cfg_lsw = AscGetChipCfgLsw(iop_base); - chip_irq = (uchar)(((cfg_lsw >> 2) & 0x07)); - if ((chip_irq == 0) || (chip_irq == 4) || (chip_irq == 7)) { - return (0); - } - return ((uchar)(chip_irq + (ASC_MIN_IRQ_NO - 1))); - } - cfg_lsw = AscGetChipCfgLsw(iop_base); - chip_irq = (uchar)(((cfg_lsw >> 2) & 0x03)); - if (chip_irq == 3) - chip_irq += (uchar)2; - return ((uchar)(chip_irq + ASC_MIN_IRQ_NO)); -} - -static uchar __devinit -AscSetChipIRQ(PortAddr iop_base, uchar irq_no, ushort bus_type) -{ - ushort cfg_lsw; - - if ((bus_type & ASC_IS_VL) != 0) { - if (irq_no != 0) { - if ((irq_no < ASC_MIN_IRQ_NO) - || (irq_no > ASC_MAX_IRQ_NO)) { - irq_no = 0; - } else { - irq_no -= (uchar)((ASC_MIN_IRQ_NO - 1)); - } - } - cfg_lsw = (ushort)(AscGetChipCfgLsw(iop_base) & 0xFFE3); - cfg_lsw |= (ushort)0x0010; - AscSetChipCfgLsw(iop_base, cfg_lsw); - AscToggleIRQAct(iop_base); - cfg_lsw = (ushort)(AscGetChipCfgLsw(iop_base) & 0xFFE0); - cfg_lsw |= (ushort)((irq_no & 0x07) << 2); - AscSetChipCfgLsw(iop_base, cfg_lsw); - AscToggleIRQAct(iop_base); - return (AscGetChipIRQ(iop_base, bus_type)); - } - if ((bus_type & (ASC_IS_ISA)) != 0) { - if (irq_no == 15) - irq_no -= (uchar)2; - irq_no -= (uchar)ASC_MIN_IRQ_NO; - cfg_lsw = (ushort)(AscGetChipCfgLsw(iop_base) & 0xFFF3); - cfg_lsw |= (ushort)((irq_no & 0x03) << 2); - AscSetChipCfgLsw(iop_base, cfg_lsw); - return (AscGetChipIRQ(iop_base, bus_type)); - } - return (0); -} - -#ifdef CONFIG_ISA -static void __devinit AscEnableIsaDma(uchar dma_channel) -{ - if (dma_channel < 4) { - outp(0x000B, (ushort)(0xC0 | dma_channel)); - outp(0x000A, dma_channel); - } else if (dma_channel < 8) { - outp(0x00D6, (ushort)(0xC0 | (dma_channel - 4))); - outp(0x00D4, (ushort)(dma_channel - 4)); - } - return; -} -#endif /* CONFIG_ISA */ - -static int AscIsrChipHalted(ASC_DVC_VAR *asc_dvc) -{ - EXT_MSG ext_msg; - EXT_MSG out_msg; - ushort halt_q_addr; - int sdtr_accept; - ushort int_halt_code; - ASC_SCSI_BIT_ID_TYPE scsi_busy; - ASC_SCSI_BIT_ID_TYPE target_id; - PortAddr iop_base; - uchar tag_code; - uchar q_status; - uchar halt_qp; - uchar sdtr_data; - uchar target_ix; - uchar q_cntl, tid_no; - uchar cur_dvc_qng; - uchar asyn_sdtr; - uchar scsi_status; - asc_board_t *boardp; - - BUG_ON(!asc_dvc->drv_ptr); - boardp = asc_dvc->drv_ptr; - - iop_base = asc_dvc->iop_base; - int_halt_code = AscReadLramWord(iop_base, ASCV_HALTCODE_W); - - halt_qp = AscReadLramByte(iop_base, ASCV_CURCDB_B); - halt_q_addr = ASC_QNO_TO_QADDR(halt_qp); - target_ix = AscReadLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_TARGET_IX)); - q_cntl = AscReadLramByte(iop_base, - (ushort)(halt_q_addr + (ushort)ASC_SCSIQ_B_CNTL)); - tid_no = ASC_TIX_TO_TID(target_ix); - target_id = (uchar)ASC_TID_TO_TARGET_ID(tid_no); - if (asc_dvc->pci_fix_asyn_xfer & target_id) { - asyn_sdtr = ASYN_SDTR_DATA_FIX_PCI_REV_AB; - } else { - asyn_sdtr = 0; - } - if (int_halt_code == ASC_HALT_DISABLE_ASYN_USE_SYN_FIX) { - if (asc_dvc->pci_fix_asyn_xfer & target_id) { - AscSetChipSDTR(iop_base, 0, tid_no); - boardp->sdtr_data[tid_no] = 0; - } - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } else if (int_halt_code == ASC_HALT_ENABLE_ASYN_USE_SYN_FIX) { - if (asc_dvc->pci_fix_asyn_xfer & target_id) { - AscSetChipSDTR(iop_base, asyn_sdtr, tid_no); - boardp->sdtr_data[tid_no] = asyn_sdtr; - } - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } else if (int_halt_code == ASC_HALT_EXTMSG_IN) { - AscMemWordCopyPtrFromLram(iop_base, - ASCV_MSGIN_BEG, - (uchar *)&ext_msg, - sizeof(EXT_MSG) >> 1); - - if (ext_msg.msg_type == EXTENDED_MESSAGE && - ext_msg.msg_req == EXTENDED_SDTR && - ext_msg.msg_len == MS_SDTR_LEN) { - sdtr_accept = TRUE; - if ((ext_msg.req_ack_offset > ASC_SYN_MAX_OFFSET)) { - - sdtr_accept = FALSE; - ext_msg.req_ack_offset = ASC_SYN_MAX_OFFSET; - } - if ((ext_msg.xfer_period < - asc_dvc->sdtr_period_tbl[asc_dvc-> - host_init_sdtr_index]) - || (ext_msg.xfer_period > - asc_dvc->sdtr_period_tbl[asc_dvc-> - max_sdtr_index])) { - sdtr_accept = FALSE; - ext_msg.xfer_period = - asc_dvc->sdtr_period_tbl[asc_dvc-> - host_init_sdtr_index]; - } - if (sdtr_accept) { - sdtr_data = - AscCalSDTRData(asc_dvc, ext_msg.xfer_period, - ext_msg.req_ack_offset); - if ((sdtr_data == 0xFF)) { - - q_cntl |= QC_MSG_OUT; - asc_dvc->init_sdtr &= ~target_id; - asc_dvc->sdtr_done &= ~target_id; - AscSetChipSDTR(iop_base, asyn_sdtr, - tid_no); - boardp->sdtr_data[tid_no] = asyn_sdtr; - } - } - if (ext_msg.req_ack_offset == 0) { - - q_cntl &= ~QC_MSG_OUT; - asc_dvc->init_sdtr &= ~target_id; - asc_dvc->sdtr_done &= ~target_id; - AscSetChipSDTR(iop_base, asyn_sdtr, tid_no); - } else { - if (sdtr_accept && (q_cntl & QC_MSG_OUT)) { - - q_cntl &= ~QC_MSG_OUT; - asc_dvc->sdtr_done |= target_id; - asc_dvc->init_sdtr |= target_id; - asc_dvc->pci_fix_asyn_xfer &= - ~target_id; - sdtr_data = - AscCalSDTRData(asc_dvc, - ext_msg.xfer_period, - ext_msg. - req_ack_offset); - AscSetChipSDTR(iop_base, sdtr_data, - tid_no); - boardp->sdtr_data[tid_no] = sdtr_data; - } else { - - q_cntl |= QC_MSG_OUT; - AscMsgOutSDTR(asc_dvc, - ext_msg.xfer_period, - ext_msg.req_ack_offset); - asc_dvc->pci_fix_asyn_xfer &= - ~target_id; - sdtr_data = - AscCalSDTRData(asc_dvc, - ext_msg.xfer_period, - ext_msg. - req_ack_offset); - AscSetChipSDTR(iop_base, sdtr_data, - tid_no); - boardp->sdtr_data[tid_no] = sdtr_data; - asc_dvc->sdtr_done |= target_id; - asc_dvc->init_sdtr |= target_id; - } - } - - AscWriteLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_CNTL), - q_cntl); - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } else if (ext_msg.msg_type == EXTENDED_MESSAGE && - ext_msg.msg_req == EXTENDED_WDTR && - ext_msg.msg_len == MS_WDTR_LEN) { - - ext_msg.wdtr_width = 0; - AscMemWordCopyPtrToLram(iop_base, - ASCV_MSGOUT_BEG, - (uchar *)&ext_msg, - sizeof(EXT_MSG) >> 1); - q_cntl |= QC_MSG_OUT; - AscWriteLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_CNTL), - q_cntl); - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } else { - - ext_msg.msg_type = MESSAGE_REJECT; - AscMemWordCopyPtrToLram(iop_base, - ASCV_MSGOUT_BEG, - (uchar *)&ext_msg, - sizeof(EXT_MSG) >> 1); - q_cntl |= QC_MSG_OUT; - AscWriteLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_CNTL), - q_cntl); - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } - } else if (int_halt_code == ASC_HALT_CHK_CONDITION) { - - q_cntl |= QC_REQ_SENSE; - - if ((asc_dvc->init_sdtr & target_id) != 0) { - - asc_dvc->sdtr_done &= ~target_id; - - sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no); - q_cntl |= QC_MSG_OUT; - AscMsgOutSDTR(asc_dvc, - asc_dvc-> - sdtr_period_tbl[(sdtr_data >> 4) & - (uchar)(asc_dvc-> - max_sdtr_index - - 1)], - (uchar)(sdtr_data & (uchar) - ASC_SYN_MAX_OFFSET)); - } - - AscWriteLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_CNTL), q_cntl); - - tag_code = AscReadLramByte(iop_base, - (ushort)(halt_q_addr + (ushort) - ASC_SCSIQ_B_TAG_CODE)); - tag_code &= 0xDC; - if ((asc_dvc->pci_fix_asyn_xfer & target_id) - && !(asc_dvc->pci_fix_asyn_xfer_always & target_id) - ) { - - tag_code |= (ASC_TAG_FLAG_DISABLE_DISCONNECT - | ASC_TAG_FLAG_DISABLE_ASYN_USE_SYN_FIX); - - } - AscWriteLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_TAG_CODE), - tag_code); - - q_status = AscReadLramByte(iop_base, - (ushort)(halt_q_addr + (ushort) - ASC_SCSIQ_B_STATUS)); - q_status |= (QS_READY | QS_BUSY); - AscWriteLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_STATUS), - q_status); - - scsi_busy = AscReadLramByte(iop_base, (ushort)ASCV_SCSIBUSY_B); - scsi_busy &= ~target_id; - AscWriteLramByte(iop_base, (ushort)ASCV_SCSIBUSY_B, scsi_busy); - - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } else if (int_halt_code == ASC_HALT_SDTR_REJECTED) { - - AscMemWordCopyPtrFromLram(iop_base, - ASCV_MSGOUT_BEG, - (uchar *)&out_msg, - sizeof(EXT_MSG) >> 1); - - if ((out_msg.msg_type == EXTENDED_MESSAGE) && - (out_msg.msg_len == MS_SDTR_LEN) && - (out_msg.msg_req == EXTENDED_SDTR)) { - - asc_dvc->init_sdtr &= ~target_id; - asc_dvc->sdtr_done &= ~target_id; - AscSetChipSDTR(iop_base, asyn_sdtr, tid_no); - boardp->sdtr_data[tid_no] = asyn_sdtr; - } - q_cntl &= ~QC_MSG_OUT; - AscWriteLramByte(iop_base, - (ushort)(halt_q_addr + - (ushort)ASC_SCSIQ_B_CNTL), q_cntl); - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } else if (int_halt_code == ASC_HALT_SS_QUEUE_FULL) { - - scsi_status = AscReadLramByte(iop_base, - (ushort)((ushort)halt_q_addr + - (ushort) - ASC_SCSIQ_SCSI_STATUS)); - cur_dvc_qng = - AscReadLramByte(iop_base, - (ushort)((ushort)ASC_QADR_BEG + - (ushort)target_ix)); - if ((cur_dvc_qng > 0) && (asc_dvc->cur_dvc_qng[tid_no] > 0)) { - - scsi_busy = AscReadLramByte(iop_base, - (ushort)ASCV_SCSIBUSY_B); - scsi_busy |= target_id; - AscWriteLramByte(iop_base, - (ushort)ASCV_SCSIBUSY_B, scsi_busy); - asc_dvc->queue_full_or_busy |= target_id; - - if (scsi_status == SAM_STAT_TASK_SET_FULL) { - if (cur_dvc_qng > ASC_MIN_TAGGED_CMD) { - cur_dvc_qng -= 1; - asc_dvc->max_dvc_qng[tid_no] = - cur_dvc_qng; - - AscWriteLramByte(iop_base, - (ushort)((ushort) - ASCV_MAX_DVC_QNG_BEG - + (ushort) - tid_no), - cur_dvc_qng); - - /* - * Set the device queue depth to the - * number of active requests when the - * QUEUE FULL condition was encountered. - */ - boardp->queue_full |= target_id; - boardp->queue_full_cnt[tid_no] = - cur_dvc_qng; - } - } - } - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } -#if CC_VERY_LONG_SG_LIST - else if (int_halt_code == ASC_HALT_HOST_COPY_SG_LIST_TO_RISC) { - uchar q_no; - ushort q_addr; - uchar sg_wk_q_no; - uchar first_sg_wk_q_no; - ASC_SCSI_Q *scsiq; /* Ptr to driver request. */ - ASC_SG_HEAD *sg_head; /* Ptr to driver SG request. */ - ASC_SG_LIST_Q scsi_sg_q; /* Structure written to queue. */ - ushort sg_list_dwords; - ushort sg_entry_cnt; - uchar next_qp; - int i; - - q_no = AscReadLramByte(iop_base, (ushort)ASCV_REQ_SG_LIST_QP); - if (q_no == ASC_QLINK_END) - return 0; - - q_addr = ASC_QNO_TO_QADDR(q_no); - - /* - * Convert the request's SRB pointer to a host ASC_SCSI_REQ - * structure pointer using a macro provided by the driver. - * The ASC_SCSI_REQ pointer provides a pointer to the - * host ASC_SG_HEAD structure. - */ - /* Read request's SRB pointer. */ - scsiq = (ASC_SCSI_Q *) - ASC_SRB2SCSIQ(ASC_U32_TO_VADDR(AscReadLramDWord(iop_base, - (ushort) - (q_addr + - ASC_SCSIQ_D_SRBPTR)))); - - /* - * Get request's first and working SG queue. - */ - sg_wk_q_no = AscReadLramByte(iop_base, - (ushort)(q_addr + - ASC_SCSIQ_B_SG_WK_QP)); - - first_sg_wk_q_no = AscReadLramByte(iop_base, - (ushort)(q_addr + - ASC_SCSIQ_B_FIRST_SG_WK_QP)); - - /* - * Reset request's working SG queue back to the - * first SG queue. - */ - AscWriteLramByte(iop_base, - (ushort)(q_addr + - (ushort)ASC_SCSIQ_B_SG_WK_QP), - first_sg_wk_q_no); - - sg_head = scsiq->sg_head; - - /* - * Set sg_entry_cnt to the number of SG elements - * that will be completed on this interrupt. - * - * Note: The allocated SG queues contain ASC_MAX_SG_LIST - 1 - * SG elements. The data_cnt and data_addr fields which - * add 1 to the SG element capacity are not used when - * restarting SG handling after a halt. - */ - if (scsiq->remain_sg_entry_cnt > (ASC_MAX_SG_LIST - 1)) { - sg_entry_cnt = ASC_MAX_SG_LIST - 1; - - /* - * Keep track of remaining number of SG elements that - * will need to be handled on the next interrupt. - */ - scsiq->remain_sg_entry_cnt -= (ASC_MAX_SG_LIST - 1); - } else { - sg_entry_cnt = scsiq->remain_sg_entry_cnt; - scsiq->remain_sg_entry_cnt = 0; - } - - /* - * Copy SG elements into the list of allocated SG queues. - * - * Last index completed is saved in scsiq->next_sg_index. - */ - next_qp = first_sg_wk_q_no; - q_addr = ASC_QNO_TO_QADDR(next_qp); - scsi_sg_q.sg_head_qp = q_no; - scsi_sg_q.cntl = QCSG_SG_XFER_LIST; - for (i = 0; i < sg_head->queue_cnt; i++) { - scsi_sg_q.seq_no = i + 1; - if (sg_entry_cnt > ASC_SG_LIST_PER_Q) { - sg_list_dwords = (uchar)(ASC_SG_LIST_PER_Q * 2); - sg_entry_cnt -= ASC_SG_LIST_PER_Q; - /* - * After very first SG queue RISC FW uses next - * SG queue first element then checks sg_list_cnt - * against zero and then decrements, so set - * sg_list_cnt 1 less than number of SG elements - * in each SG queue. - */ - scsi_sg_q.sg_list_cnt = ASC_SG_LIST_PER_Q - 1; - scsi_sg_q.sg_cur_list_cnt = - ASC_SG_LIST_PER_Q - 1; - } else { - /* - * This is the last SG queue in the list of - * allocated SG queues. If there are more - * SG elements than will fit in the allocated - * queues, then set the QCSG_SG_XFER_MORE flag. - */ - if (scsiq->remain_sg_entry_cnt != 0) { - scsi_sg_q.cntl |= QCSG_SG_XFER_MORE; - } else { - scsi_sg_q.cntl |= QCSG_SG_XFER_END; - } - /* equals sg_entry_cnt * 2 */ - sg_list_dwords = sg_entry_cnt << 1; - scsi_sg_q.sg_list_cnt = sg_entry_cnt - 1; - scsi_sg_q.sg_cur_list_cnt = sg_entry_cnt - 1; - sg_entry_cnt = 0; - } - - scsi_sg_q.q_no = next_qp; - AscMemWordCopyPtrToLram(iop_base, - q_addr + ASC_SCSIQ_SGHD_CPY_BEG, - (uchar *)&scsi_sg_q, - sizeof(ASC_SG_LIST_Q) >> 1); - - AscMemDWordCopyPtrToLram(iop_base, - q_addr + ASC_SGQ_LIST_BEG, - (uchar *)&sg_head-> - sg_list[scsiq->next_sg_index], - sg_list_dwords); - - scsiq->next_sg_index += ASC_SG_LIST_PER_Q; - - /* - * If the just completed SG queue contained the - * last SG element, then no more SG queues need - * to be written. - */ - if (scsi_sg_q.cntl & QCSG_SG_XFER_END) { - break; - } - - next_qp = AscReadLramByte(iop_base, - (ushort)(q_addr + - ASC_SCSIQ_B_FWD)); - q_addr = ASC_QNO_TO_QADDR(next_qp); - } - - /* - * Clear the halt condition so the RISC will be restarted - * after the return. - */ - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - return (0); - } -#endif /* CC_VERY_LONG_SG_LIST */ - return (0); -} - -static uchar -_AscCopyLramScsiDoneQ(PortAddr iop_base, - ushort q_addr, - ASC_QDONE_INFO *scsiq, ASC_DCNT max_dma_count) -{ - ushort _val; - uchar sg_queue_cnt; - - DvcGetQinfo(iop_base, - q_addr + ASC_SCSIQ_DONE_INFO_BEG, - (uchar *)scsiq, - (sizeof(ASC_SCSIQ_2) + sizeof(ASC_SCSIQ_3)) / 2); - - _val = AscReadLramWord(iop_base, - (ushort)(q_addr + (ushort)ASC_SCSIQ_B_STATUS)); - scsiq->q_status = (uchar)_val; - scsiq->q_no = (uchar)(_val >> 8); - _val = AscReadLramWord(iop_base, - (ushort)(q_addr + (ushort)ASC_SCSIQ_B_CNTL)); - scsiq->cntl = (uchar)_val; - sg_queue_cnt = (uchar)(_val >> 8); - _val = AscReadLramWord(iop_base, - (ushort)(q_addr + - (ushort)ASC_SCSIQ_B_SENSE_LEN)); - scsiq->sense_len = (uchar)_val; - scsiq->extra_bytes = (uchar)(_val >> 8); - - /* - * Read high word of remain bytes from alternate location. - */ - scsiq->remain_bytes = (((ADV_DCNT)AscReadLramWord(iop_base, - (ushort)(q_addr + - (ushort) - ASC_SCSIQ_W_ALT_DC1))) - << 16); - /* - * Read low word of remain bytes from original location. - */ - scsiq->remain_bytes += AscReadLramWord(iop_base, - (ushort)(q_addr + (ushort) - ASC_SCSIQ_DW_REMAIN_XFER_CNT)); - - scsiq->remain_bytes &= max_dma_count; - return (sg_queue_cnt); -} - -static int AscIsrQDone(ASC_DVC_VAR *asc_dvc) -{ - uchar next_qp; - uchar n_q_used; - uchar sg_list_qp; - uchar sg_queue_cnt; - uchar q_cnt; - uchar done_q_tail; - uchar tid_no; - ASC_SCSI_BIT_ID_TYPE scsi_busy; - ASC_SCSI_BIT_ID_TYPE target_id; - PortAddr iop_base; - ushort q_addr; - ushort sg_q_addr; - uchar cur_target_qng; - ASC_QDONE_INFO scsiq_buf; - ASC_QDONE_INFO *scsiq; - int false_overrun; - - iop_base = asc_dvc->iop_base; - n_q_used = 1; - scsiq = (ASC_QDONE_INFO *)&scsiq_buf; - done_q_tail = (uchar)AscGetVarDoneQTail(iop_base); - q_addr = ASC_QNO_TO_QADDR(done_q_tail); - next_qp = AscReadLramByte(iop_base, - (ushort)(q_addr + (ushort)ASC_SCSIQ_B_FWD)); - if (next_qp != ASC_QLINK_END) { - AscPutVarDoneQTail(iop_base, next_qp); - q_addr = ASC_QNO_TO_QADDR(next_qp); - sg_queue_cnt = _AscCopyLramScsiDoneQ(iop_base, q_addr, scsiq, - asc_dvc->max_dma_count); - AscWriteLramByte(iop_base, - (ushort)(q_addr + - (ushort)ASC_SCSIQ_B_STATUS), - (uchar)(scsiq-> - q_status & (uchar)~(QS_READY | - QS_ABORTED))); - tid_no = ASC_TIX_TO_TID(scsiq->d2.target_ix); - target_id = ASC_TIX_TO_TARGET_ID(scsiq->d2.target_ix); - if ((scsiq->cntl & QC_SG_HEAD) != 0) { - sg_q_addr = q_addr; - sg_list_qp = next_qp; - for (q_cnt = 0; q_cnt < sg_queue_cnt; q_cnt++) { - sg_list_qp = AscReadLramByte(iop_base, - (ushort)(sg_q_addr - + (ushort) - ASC_SCSIQ_B_FWD)); - sg_q_addr = ASC_QNO_TO_QADDR(sg_list_qp); - if (sg_list_qp == ASC_QLINK_END) { - AscSetLibErrorCode(asc_dvc, - ASCQ_ERR_SG_Q_LINKS); - scsiq->d3.done_stat = QD_WITH_ERROR; - scsiq->d3.host_stat = - QHSTA_D_QDONE_SG_LIST_CORRUPTED; - goto FATAL_ERR_QDONE; - } - AscWriteLramByte(iop_base, - (ushort)(sg_q_addr + (ushort) - ASC_SCSIQ_B_STATUS), - QS_FREE); - } - n_q_used = sg_queue_cnt + 1; - AscPutVarDoneQTail(iop_base, sg_list_qp); - } - if (asc_dvc->queue_full_or_busy & target_id) { - cur_target_qng = AscReadLramByte(iop_base, - (ushort)((ushort) - ASC_QADR_BEG - + (ushort) - scsiq->d2. - target_ix)); - if (cur_target_qng < asc_dvc->max_dvc_qng[tid_no]) { - scsi_busy = AscReadLramByte(iop_base, (ushort) - ASCV_SCSIBUSY_B); - scsi_busy &= ~target_id; - AscWriteLramByte(iop_base, - (ushort)ASCV_SCSIBUSY_B, - scsi_busy); - asc_dvc->queue_full_or_busy &= ~target_id; - } - } - if (asc_dvc->cur_total_qng >= n_q_used) { - asc_dvc->cur_total_qng -= n_q_used; - if (asc_dvc->cur_dvc_qng[tid_no] != 0) { - asc_dvc->cur_dvc_qng[tid_no]--; - } - } else { - AscSetLibErrorCode(asc_dvc, ASCQ_ERR_CUR_QNG); - scsiq->d3.done_stat = QD_WITH_ERROR; - goto FATAL_ERR_QDONE; - } - if ((scsiq->d2.srb_ptr == 0UL) || - ((scsiq->q_status & QS_ABORTED) != 0)) { - return (0x11); - } else if (scsiq->q_status == QS_DONE) { - false_overrun = FALSE; - if (scsiq->extra_bytes != 0) { - scsiq->remain_bytes += - (ADV_DCNT)scsiq->extra_bytes; - } - if (scsiq->d3.done_stat == QD_WITH_ERROR) { - if (scsiq->d3.host_stat == - QHSTA_M_DATA_OVER_RUN) { - if ((scsiq-> - cntl & (QC_DATA_IN | QC_DATA_OUT)) - == 0) { - scsiq->d3.done_stat = - QD_NO_ERROR; - scsiq->d3.host_stat = - QHSTA_NO_ERROR; - } else if (false_overrun) { - scsiq->d3.done_stat = - QD_NO_ERROR; - scsiq->d3.host_stat = - QHSTA_NO_ERROR; - } - } else if (scsiq->d3.host_stat == - QHSTA_M_HUNG_REQ_SCSI_BUS_RESET) { - AscStopChip(iop_base); - AscSetChipControl(iop_base, - (uchar)(CC_SCSI_RESET - | CC_HALT)); - udelay(60); - AscSetChipControl(iop_base, CC_HALT); - AscSetChipStatus(iop_base, - CIW_CLR_SCSI_RESET_INT); - AscSetChipStatus(iop_base, 0); - AscSetChipControl(iop_base, 0); - } - } - if ((scsiq->cntl & QC_NO_CALLBACK) == 0) { - asc_isr_callback(asc_dvc, scsiq); - } else { - if ((AscReadLramByte(iop_base, - (ushort)(q_addr + (ushort) - ASC_SCSIQ_CDB_BEG)) - == START_STOP)) { - asc_dvc->unit_not_ready &= ~target_id; - if (scsiq->d3.done_stat != QD_NO_ERROR) { - asc_dvc->start_motor &= - ~target_id; - } - } - } - return (1); - } else { - AscSetLibErrorCode(asc_dvc, ASCQ_ERR_Q_STATUS); - FATAL_ERR_QDONE: - if ((scsiq->cntl & QC_NO_CALLBACK) == 0) { - asc_isr_callback(asc_dvc, scsiq); - } - return (0x80); - } - } - return (0); -} - -static int AscISR(ASC_DVC_VAR *asc_dvc) -{ - ASC_CS_TYPE chipstat; - PortAddr iop_base; - ushort saved_ram_addr; - uchar ctrl_reg; - uchar saved_ctrl_reg; - int int_pending; - int status; - uchar host_flag; - - iop_base = asc_dvc->iop_base; - int_pending = FALSE; - - if (AscIsIntPending(iop_base) == 0) { - return int_pending; - } - - if ((asc_dvc->init_state & ASC_INIT_STATE_END_LOAD_MC) == 0) { - return (ERR); - } - if (asc_dvc->in_critical_cnt != 0) { - AscSetLibErrorCode(asc_dvc, ASCQ_ERR_ISR_ON_CRITICAL); - return (ERR); - } - if (asc_dvc->is_in_int) { - AscSetLibErrorCode(asc_dvc, ASCQ_ERR_ISR_RE_ENTRY); - return (ERR); - } - asc_dvc->is_in_int = TRUE; - ctrl_reg = AscGetChipControl(iop_base); - saved_ctrl_reg = ctrl_reg & (~(CC_SCSI_RESET | CC_CHIP_RESET | - CC_SINGLE_STEP | CC_DIAG | CC_TEST)); - chipstat = AscGetChipStatus(iop_base); - if (chipstat & CSW_SCSI_RESET_LATCH) { - if (!(asc_dvc->bus_type & (ASC_IS_VL | ASC_IS_EISA))) { - int i = 10; - int_pending = TRUE; - asc_dvc->sdtr_done = 0; - saved_ctrl_reg &= (uchar)(~CC_HALT); - while ((AscGetChipStatus(iop_base) & - CSW_SCSI_RESET_ACTIVE) && (i-- > 0)) { - mdelay(100); - } - AscSetChipControl(iop_base, (CC_CHIP_RESET | CC_HALT)); - AscSetChipControl(iop_base, CC_HALT); - AscSetChipStatus(iop_base, CIW_CLR_SCSI_RESET_INT); - AscSetChipStatus(iop_base, 0); - chipstat = AscGetChipStatus(iop_base); - } - } - saved_ram_addr = AscGetChipLramAddr(iop_base); - host_flag = AscReadLramByte(iop_base, - ASCV_HOST_FLAG_B) & - (uchar)(~ASC_HOST_FLAG_IN_ISR); - AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, - (uchar)(host_flag | (uchar)ASC_HOST_FLAG_IN_ISR)); - if ((chipstat & CSW_INT_PENDING) - || (int_pending) - ) { - AscAckInterrupt(iop_base); - int_pending = TRUE; - if ((chipstat & CSW_HALTED) && (ctrl_reg & CC_SINGLE_STEP)) { - if (AscIsrChipHalted(asc_dvc) == ERR) { - goto ISR_REPORT_QDONE_FATAL_ERROR; - } else { - saved_ctrl_reg &= (uchar)(~CC_HALT); - } - } else { - ISR_REPORT_QDONE_FATAL_ERROR: - if ((asc_dvc->dvc_cntl & ASC_CNTL_INT_MULTI_Q) != 0) { - while (((status = - AscIsrQDone(asc_dvc)) & 0x01) != 0) { - } - } else { - do { - if ((status = - AscIsrQDone(asc_dvc)) == 1) { - break; - } - } while (status == 0x11); - } - if ((status & 0x80) != 0) - int_pending = ERR; - } - } - AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, host_flag); - AscSetChipLramAddr(iop_base, saved_ram_addr); - AscSetChipControl(iop_base, saved_ctrl_reg); - asc_dvc->is_in_int = FALSE; - return (int_pending); -} - /* Microcode buffer is kept after initialization for error recovery. */ static uchar _asc_mcode_buf[] = { 0x01, 0x03, 0x01, 0x19, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, @@ -7302,1977 +5078,9 @@ static uchar _asc_mcode_buf[] = { 0xF8, 0x88, 0x11, 0x23, 0xA1, 0x01, 0x04, 0x23, 0xA0, 0x01, 0xE6, 0x84, }; -static ushort _asc_mcode_size = sizeof(_asc_mcode_buf); +static unsigned short _asc_mcode_size = sizeof(_asc_mcode_buf); static ADV_DCNT _asc_mcode_chksum = 0x012C453FUL; -#define ASC_SYN_OFFSET_ONE_DISABLE_LIST 16 -static uchar _syn_offset_one_disable_cmd[ASC_SYN_OFFSET_ONE_DISABLE_LIST] = { - INQUIRY, - REQUEST_SENSE, - READ_CAPACITY, - READ_TOC, - MODE_SELECT, - MODE_SENSE, - MODE_SELECT_10, - MODE_SENSE_10, - 0xFF, - 0xFF, - 0xFF, - 0xFF, - 0xFF, - 0xFF, - 0xFF, - 0xFF -}; - -static int AscExeScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq) -{ - PortAddr iop_base; - int sta; - int n_q_required; - int disable_syn_offset_one_fix; - int i; - ASC_PADDR addr; - ushort sg_entry_cnt = 0; - ushort sg_entry_cnt_minus_one = 0; - uchar target_ix; - uchar tid_no; - uchar sdtr_data; - uchar extra_bytes; - uchar scsi_cmd; - uchar disable_cmd; - ASC_SG_HEAD *sg_head; - ASC_DCNT data_cnt; - - iop_base = asc_dvc->iop_base; - sg_head = scsiq->sg_head; - if (asc_dvc->err_code != 0) - return (ERR); - scsiq->q1.q_no = 0; - if ((scsiq->q2.tag_code & ASC_TAG_FLAG_EXTRA_BYTES) == 0) { - scsiq->q1.extra_bytes = 0; - } - sta = 0; - target_ix = scsiq->q2.target_ix; - tid_no = ASC_TIX_TO_TID(target_ix); - n_q_required = 1; - if (scsiq->cdbptr[0] == REQUEST_SENSE) { - if ((asc_dvc->init_sdtr & scsiq->q1.target_id) != 0) { - asc_dvc->sdtr_done &= ~scsiq->q1.target_id; - sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no); - AscMsgOutSDTR(asc_dvc, - asc_dvc-> - sdtr_period_tbl[(sdtr_data >> 4) & - (uchar)(asc_dvc-> - max_sdtr_index - - 1)], - (uchar)(sdtr_data & (uchar) - ASC_SYN_MAX_OFFSET)); - scsiq->q1.cntl |= (QC_MSG_OUT | QC_URGENT); - } - } - if (asc_dvc->in_critical_cnt != 0) { - AscSetLibErrorCode(asc_dvc, ASCQ_ERR_CRITICAL_RE_ENTRY); - return (ERR); - } - asc_dvc->in_critical_cnt++; - if ((scsiq->q1.cntl & QC_SG_HEAD) != 0) { - if ((sg_entry_cnt = sg_head->entry_cnt) == 0) { - asc_dvc->in_critical_cnt--; - return (ERR); - } -#if !CC_VERY_LONG_SG_LIST - if (sg_entry_cnt > ASC_MAX_SG_LIST) { - asc_dvc->in_critical_cnt--; - return (ERR); - } -#endif /* !CC_VERY_LONG_SG_LIST */ - if (sg_entry_cnt == 1) { - scsiq->q1.data_addr = - (ADV_PADDR)sg_head->sg_list[0].addr; - scsiq->q1.data_cnt = - (ADV_DCNT)sg_head->sg_list[0].bytes; - scsiq->q1.cntl &= ~(QC_SG_HEAD | QC_SG_SWAP_QUEUE); - } - sg_entry_cnt_minus_one = sg_entry_cnt - 1; - } - scsi_cmd = scsiq->cdbptr[0]; - disable_syn_offset_one_fix = FALSE; - if ((asc_dvc->pci_fix_asyn_xfer & scsiq->q1.target_id) && - !(asc_dvc->pci_fix_asyn_xfer_always & scsiq->q1.target_id)) { - if (scsiq->q1.cntl & QC_SG_HEAD) { - data_cnt = 0; - for (i = 0; i < sg_entry_cnt; i++) { - data_cnt += - (ADV_DCNT)le32_to_cpu(sg_head->sg_list[i]. - bytes); - } - } else { - data_cnt = le32_to_cpu(scsiq->q1.data_cnt); - } - if (data_cnt != 0UL) { - if (data_cnt < 512UL) { - disable_syn_offset_one_fix = TRUE; - } else { - for (i = 0; i < ASC_SYN_OFFSET_ONE_DISABLE_LIST; - i++) { - disable_cmd = - _syn_offset_one_disable_cmd[i]; - if (disable_cmd == 0xFF) { - break; - } - if (scsi_cmd == disable_cmd) { - disable_syn_offset_one_fix = - TRUE; - break; - } - } - } - } - } - if (disable_syn_offset_one_fix) { - scsiq->q2.tag_code &= ~MSG_SIMPLE_TAG; - scsiq->q2.tag_code |= (ASC_TAG_FLAG_DISABLE_ASYN_USE_SYN_FIX | - ASC_TAG_FLAG_DISABLE_DISCONNECT); - } else { - scsiq->q2.tag_code &= 0x27; - } - if ((scsiq->q1.cntl & QC_SG_HEAD) != 0) { - if (asc_dvc->bug_fix_cntl) { - if (asc_dvc->bug_fix_cntl & ASC_BUG_FIX_IF_NOT_DWB) { - if ((scsi_cmd == READ_6) || - (scsi_cmd == READ_10)) { - addr = - (ADV_PADDR)le32_to_cpu(sg_head-> - sg_list - [sg_entry_cnt_minus_one]. - addr) + - (ADV_DCNT)le32_to_cpu(sg_head-> - sg_list - [sg_entry_cnt_minus_one]. - bytes); - extra_bytes = - (uchar)((ushort)addr & 0x0003); - if ((extra_bytes != 0) - && - ((scsiq->q2. - tag_code & - ASC_TAG_FLAG_EXTRA_BYTES) - == 0)) { - scsiq->q2.tag_code |= - ASC_TAG_FLAG_EXTRA_BYTES; - scsiq->q1.extra_bytes = - extra_bytes; - data_cnt = - le32_to_cpu(sg_head-> - sg_list - [sg_entry_cnt_minus_one]. - bytes); - data_cnt -= - (ASC_DCNT) extra_bytes; - sg_head-> - sg_list - [sg_entry_cnt_minus_one]. - bytes = - cpu_to_le32(data_cnt); - } - } - } - } - sg_head->entry_to_copy = sg_head->entry_cnt; -#if CC_VERY_LONG_SG_LIST - /* - * Set the sg_entry_cnt to the maximum possible. The rest of - * the SG elements will be copied when the RISC completes the - * SG elements that fit and halts. - */ - if (sg_entry_cnt > ASC_MAX_SG_LIST) { - sg_entry_cnt = ASC_MAX_SG_LIST; - } -#endif /* CC_VERY_LONG_SG_LIST */ - n_q_required = AscSgListToQueue(sg_entry_cnt); - if ((AscGetNumOfFreeQueue(asc_dvc, target_ix, n_q_required) >= - (uint) n_q_required) - || ((scsiq->q1.cntl & QC_URGENT) != 0)) { - if ((sta = - AscSendScsiQueue(asc_dvc, scsiq, - n_q_required)) == 1) { - asc_dvc->in_critical_cnt--; - return (sta); - } - } - } else { - if (asc_dvc->bug_fix_cntl) { - if (asc_dvc->bug_fix_cntl & ASC_BUG_FIX_IF_NOT_DWB) { - if ((scsi_cmd == READ_6) || - (scsi_cmd == READ_10)) { - addr = - le32_to_cpu(scsiq->q1.data_addr) + - le32_to_cpu(scsiq->q1.data_cnt); - extra_bytes = - (uchar)((ushort)addr & 0x0003); - if ((extra_bytes != 0) - && - ((scsiq->q2. - tag_code & - ASC_TAG_FLAG_EXTRA_BYTES) - == 0)) { - data_cnt = - le32_to_cpu(scsiq->q1. - data_cnt); - if (((ushort)data_cnt & 0x01FF) - == 0) { - scsiq->q2.tag_code |= - ASC_TAG_FLAG_EXTRA_BYTES; - data_cnt -= (ASC_DCNT) - extra_bytes; - scsiq->q1.data_cnt = - cpu_to_le32 - (data_cnt); - scsiq->q1.extra_bytes = - extra_bytes; - } - } - } - } - } - n_q_required = 1; - if ((AscGetNumOfFreeQueue(asc_dvc, target_ix, 1) >= 1) || - ((scsiq->q1.cntl & QC_URGENT) != 0)) { - if ((sta = AscSendScsiQueue(asc_dvc, scsiq, - n_q_required)) == 1) { - asc_dvc->in_critical_cnt--; - return (sta); - } - } - } - asc_dvc->in_critical_cnt--; - return (sta); -} - -static int -AscSendScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar n_q_required) -{ - PortAddr iop_base; - uchar free_q_head; - uchar next_qp; - uchar tid_no; - uchar target_ix; - int sta; - - iop_base = asc_dvc->iop_base; - target_ix = scsiq->q2.target_ix; - tid_no = ASC_TIX_TO_TID(target_ix); - sta = 0; - free_q_head = (uchar)AscGetVarFreeQHead(iop_base); - if (n_q_required > 1) { - next_qp = AscAllocMultipleFreeQueue(iop_base, free_q_head, - (uchar)n_q_required); - if (next_qp != ASC_QLINK_END) { - asc_dvc->last_q_shortage = 0; - scsiq->sg_head->queue_cnt = n_q_required - 1; - scsiq->q1.q_no = free_q_head; - sta = AscPutReadySgListQueue(asc_dvc, scsiq, - free_q_head); - } - } else if (n_q_required == 1) { - next_qp = AscAllocFreeQueue(iop_base, free_q_head); - if (next_qp != ASC_QLINK_END) { - scsiq->q1.q_no = free_q_head; - sta = AscPutReadyQueue(asc_dvc, scsiq, free_q_head); - } - } - if (sta == 1) { - AscPutVarFreeQHead(iop_base, next_qp); - asc_dvc->cur_total_qng += (uchar)(n_q_required); - asc_dvc->cur_dvc_qng[tid_no]++; - } - return sta; -} - -static int AscSgListToQueue(int sg_list) -{ - int n_sg_list_qs; - - n_sg_list_qs = ((sg_list - 1) / ASC_SG_LIST_PER_Q); - if (((sg_list - 1) % ASC_SG_LIST_PER_Q) != 0) - n_sg_list_qs++; - return (n_sg_list_qs + 1); -} - -static uint -AscGetNumOfFreeQueue(ASC_DVC_VAR *asc_dvc, uchar target_ix, uchar n_qs) -{ - uint cur_used_qs; - uint cur_free_qs; - ASC_SCSI_BIT_ID_TYPE target_id; - uchar tid_no; - - target_id = ASC_TIX_TO_TARGET_ID(target_ix); - tid_no = ASC_TIX_TO_TID(target_ix); - if ((asc_dvc->unit_not_ready & target_id) || - (asc_dvc->queue_full_or_busy & target_id)) { - return (0); - } - if (n_qs == 1) { - cur_used_qs = (uint) asc_dvc->cur_total_qng + - (uint) asc_dvc->last_q_shortage + (uint) ASC_MIN_FREE_Q; - } else { - cur_used_qs = (uint) asc_dvc->cur_total_qng + - (uint) ASC_MIN_FREE_Q; - } - if ((uint) (cur_used_qs + n_qs) <= (uint) asc_dvc->max_total_qng) { - cur_free_qs = (uint) asc_dvc->max_total_qng - cur_used_qs; - if (asc_dvc->cur_dvc_qng[tid_no] >= - asc_dvc->max_dvc_qng[tid_no]) { - return (0); - } - return (cur_free_qs); - } - if (n_qs > 1) { - if ((n_qs > asc_dvc->last_q_shortage) - && (n_qs <= (asc_dvc->max_total_qng - ASC_MIN_FREE_Q))) { - asc_dvc->last_q_shortage = n_qs; - } - } - return (0); -} - -static int AscPutReadyQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar q_no) -{ - ushort q_addr; - uchar tid_no; - uchar sdtr_data; - uchar syn_period_ix; - uchar syn_offset; - PortAddr iop_base; - - iop_base = asc_dvc->iop_base; - if (((asc_dvc->init_sdtr & scsiq->q1.target_id) != 0) && - ((asc_dvc->sdtr_done & scsiq->q1.target_id) == 0)) { - tid_no = ASC_TIX_TO_TID(scsiq->q2.target_ix); - sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no); - syn_period_ix = - (sdtr_data >> 4) & (asc_dvc->max_sdtr_index - 1); - syn_offset = sdtr_data & ASC_SYN_MAX_OFFSET; - AscMsgOutSDTR(asc_dvc, - asc_dvc->sdtr_period_tbl[syn_period_ix], - syn_offset); - scsiq->q1.cntl |= QC_MSG_OUT; - } - q_addr = ASC_QNO_TO_QADDR(q_no); - if ((scsiq->q1.target_id & asc_dvc->use_tagged_qng) == 0) { - scsiq->q2.tag_code &= ~MSG_SIMPLE_TAG; - } - scsiq->q1.status = QS_FREE; - AscMemWordCopyPtrToLram(iop_base, - q_addr + ASC_SCSIQ_CDB_BEG, - (uchar *)scsiq->cdbptr, scsiq->q2.cdb_len >> 1); - - DvcPutScsiQ(iop_base, - q_addr + ASC_SCSIQ_CPY_BEG, - (uchar *)&scsiq->q1.cntl, - ((sizeof(ASC_SCSIQ_1) + sizeof(ASC_SCSIQ_2)) / 2) - 1); - AscWriteLramWord(iop_base, - (ushort)(q_addr + (ushort)ASC_SCSIQ_B_STATUS), - (ushort)(((ushort)scsiq->q1. - q_no << 8) | (ushort)QS_READY)); - return (1); -} - -static int -AscPutReadySgListQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar q_no) -{ - int sta; - int i; - ASC_SG_HEAD *sg_head; - ASC_SG_LIST_Q scsi_sg_q; - ASC_DCNT saved_data_addr; - ASC_DCNT saved_data_cnt; - PortAddr iop_base; - ushort sg_list_dwords; - ushort sg_index; - ushort sg_entry_cnt; - ushort q_addr; - uchar next_qp; - - iop_base = asc_dvc->iop_base; - sg_head = scsiq->sg_head; - saved_data_addr = scsiq->q1.data_addr; - saved_data_cnt = scsiq->q1.data_cnt; - scsiq->q1.data_addr = (ASC_PADDR) sg_head->sg_list[0].addr; - scsiq->q1.data_cnt = (ASC_DCNT) sg_head->sg_list[0].bytes; -#if CC_VERY_LONG_SG_LIST - /* - * If sg_head->entry_cnt is greater than ASC_MAX_SG_LIST - * then not all SG elements will fit in the allocated queues. - * The rest of the SG elements will be copied when the RISC - * completes the SG elements that fit and halts. - */ - if (sg_head->entry_cnt > ASC_MAX_SG_LIST) { - /* - * Set sg_entry_cnt to be the number of SG elements that - * will fit in the allocated SG queues. It is minus 1, because - * the first SG element is handled above. ASC_MAX_SG_LIST is - * already inflated by 1 to account for this. For example it - * may be 50 which is 1 + 7 queues * 7 SG elements. - */ - sg_entry_cnt = ASC_MAX_SG_LIST - 1; - - /* - * Keep track of remaining number of SG elements that will - * need to be handled from a_isr.c. - */ - scsiq->remain_sg_entry_cnt = - sg_head->entry_cnt - ASC_MAX_SG_LIST; - } else { -#endif /* CC_VERY_LONG_SG_LIST */ - /* - * Set sg_entry_cnt to be the number of SG elements that - * will fit in the allocated SG queues. It is minus 1, because - * the first SG element is handled above. - */ - sg_entry_cnt = sg_head->entry_cnt - 1; -#if CC_VERY_LONG_SG_LIST - } -#endif /* CC_VERY_LONG_SG_LIST */ - if (sg_entry_cnt != 0) { - scsiq->q1.cntl |= QC_SG_HEAD; - q_addr = ASC_QNO_TO_QADDR(q_no); - sg_index = 1; - scsiq->q1.sg_queue_cnt = sg_head->queue_cnt; - scsi_sg_q.sg_head_qp = q_no; - scsi_sg_q.cntl = QCSG_SG_XFER_LIST; - for (i = 0; i < sg_head->queue_cnt; i++) { - scsi_sg_q.seq_no = i + 1; - if (sg_entry_cnt > ASC_SG_LIST_PER_Q) { - sg_list_dwords = (uchar)(ASC_SG_LIST_PER_Q * 2); - sg_entry_cnt -= ASC_SG_LIST_PER_Q; - if (i == 0) { - scsi_sg_q.sg_list_cnt = - ASC_SG_LIST_PER_Q; - scsi_sg_q.sg_cur_list_cnt = - ASC_SG_LIST_PER_Q; - } else { - scsi_sg_q.sg_list_cnt = - ASC_SG_LIST_PER_Q - 1; - scsi_sg_q.sg_cur_list_cnt = - ASC_SG_LIST_PER_Q - 1; - } - } else { -#if CC_VERY_LONG_SG_LIST - /* - * This is the last SG queue in the list of - * allocated SG queues. If there are more - * SG elements than will fit in the allocated - * queues, then set the QCSG_SG_XFER_MORE flag. - */ - if (sg_head->entry_cnt > ASC_MAX_SG_LIST) { - scsi_sg_q.cntl |= QCSG_SG_XFER_MORE; - } else { -#endif /* CC_VERY_LONG_SG_LIST */ - scsi_sg_q.cntl |= QCSG_SG_XFER_END; -#if CC_VERY_LONG_SG_LIST - } -#endif /* CC_VERY_LONG_SG_LIST */ - sg_list_dwords = sg_entry_cnt << 1; - if (i == 0) { - scsi_sg_q.sg_list_cnt = sg_entry_cnt; - scsi_sg_q.sg_cur_list_cnt = - sg_entry_cnt; - } else { - scsi_sg_q.sg_list_cnt = - sg_entry_cnt - 1; - scsi_sg_q.sg_cur_list_cnt = - sg_entry_cnt - 1; - } - sg_entry_cnt = 0; - } - next_qp = AscReadLramByte(iop_base, - (ushort)(q_addr + - ASC_SCSIQ_B_FWD)); - scsi_sg_q.q_no = next_qp; - q_addr = ASC_QNO_TO_QADDR(next_qp); - AscMemWordCopyPtrToLram(iop_base, - q_addr + ASC_SCSIQ_SGHD_CPY_BEG, - (uchar *)&scsi_sg_q, - sizeof(ASC_SG_LIST_Q) >> 1); - AscMemDWordCopyPtrToLram(iop_base, - q_addr + ASC_SGQ_LIST_BEG, - (uchar *)&sg_head-> - sg_list[sg_index], - sg_list_dwords); - sg_index += ASC_SG_LIST_PER_Q; - scsiq->next_sg_index = sg_index; - } - } else { - scsiq->q1.cntl &= ~QC_SG_HEAD; - } - sta = AscPutReadyQueue(asc_dvc, scsiq, q_no); - scsiq->q1.data_addr = saved_data_addr; - scsiq->q1.data_cnt = saved_data_cnt; - return (sta); -} - -static int -AscSetRunChipSynRegAtID(PortAddr iop_base, uchar tid_no, uchar sdtr_data) -{ - int sta = FALSE; - - if (AscHostReqRiscHalt(iop_base)) { - sta = AscSetChipSynRegAtID(iop_base, tid_no, sdtr_data); - AscStartChip(iop_base); - return (sta); - } - return (sta); -} - -static int AscSetChipSynRegAtID(PortAddr iop_base, uchar id, uchar sdtr_data) -{ - ASC_SCSI_BIT_ID_TYPE org_id; - int i; - int sta = TRUE; - - AscSetBank(iop_base, 1); - org_id = AscReadChipDvcID(iop_base); - for (i = 0; i <= ASC_MAX_TID; i++) { - if (org_id == (0x01 << i)) - break; - } - org_id = (ASC_SCSI_BIT_ID_TYPE) i; - AscWriteChipDvcID(iop_base, id); - if (AscReadChipDvcID(iop_base) == (0x01 << id)) { - AscSetBank(iop_base, 0); - AscSetChipSyn(iop_base, sdtr_data); - if (AscGetChipSyn(iop_base) != sdtr_data) { - sta = FALSE; - } - } else { - sta = FALSE; - } - AscSetBank(iop_base, 1); - AscWriteChipDvcID(iop_base, org_id); - AscSetBank(iop_base, 0); - return (sta); -} - -static ushort AscInitLram(ASC_DVC_VAR *asc_dvc) -{ - uchar i; - ushort s_addr; - PortAddr iop_base; - ushort warn_code; - - iop_base = asc_dvc->iop_base; - warn_code = 0; - AscMemWordSetLram(iop_base, ASC_QADR_BEG, 0, - (ushort)(((int)(asc_dvc->max_total_qng + 2 + 1) * - 64) >> 1) - ); - i = ASC_MIN_ACTIVE_QNO; - s_addr = ASC_QADR_BEG + ASC_QBLK_SIZE; - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD), - (uchar)(i + 1)); - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD), - (uchar)(asc_dvc->max_total_qng)); - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO), - (uchar)i); - i++; - s_addr += ASC_QBLK_SIZE; - for (; i < asc_dvc->max_total_qng; i++, s_addr += ASC_QBLK_SIZE) { - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD), - (uchar)(i + 1)); - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD), - (uchar)(i - 1)); - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO), - (uchar)i); - } - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD), - (uchar)ASC_QLINK_END); - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD), - (uchar)(asc_dvc->max_total_qng - 1)); - AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO), - (uchar)asc_dvc->max_total_qng); - i++; - s_addr += ASC_QBLK_SIZE; - for (; i <= (uchar)(asc_dvc->max_total_qng + 3); - i++, s_addr += ASC_QBLK_SIZE) { - AscWriteLramByte(iop_base, - (ushort)(s_addr + (ushort)ASC_SCSIQ_B_FWD), i); - AscWriteLramByte(iop_base, - (ushort)(s_addr + (ushort)ASC_SCSIQ_B_BWD), i); - AscWriteLramByte(iop_base, - (ushort)(s_addr + (ushort)ASC_SCSIQ_B_QNO), i); - } - return (warn_code); -} - -static void AscInitQLinkVar(ASC_DVC_VAR *asc_dvc) -{ - PortAddr iop_base; - int i; - ushort lram_addr; - - iop_base = asc_dvc->iop_base; - AscPutRiscVarFreeQHead(iop_base, 1); - AscPutRiscVarDoneQTail(iop_base, asc_dvc->max_total_qng); - AscPutVarFreeQHead(iop_base, 1); - AscPutVarDoneQTail(iop_base, asc_dvc->max_total_qng); - AscWriteLramByte(iop_base, ASCV_BUSY_QHEAD_B, - (uchar)((int)asc_dvc->max_total_qng + 1)); - AscWriteLramByte(iop_base, ASCV_DISC1_QHEAD_B, - (uchar)((int)asc_dvc->max_total_qng + 2)); - AscWriteLramByte(iop_base, (ushort)ASCV_TOTAL_READY_Q_B, - asc_dvc->max_total_qng); - AscWriteLramWord(iop_base, ASCV_ASCDVC_ERR_CODE_W, 0); - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); - AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, 0); - AscWriteLramByte(iop_base, ASCV_SCSIBUSY_B, 0); - AscWriteLramByte(iop_base, ASCV_WTM_FLAG_B, 0); - AscPutQDoneInProgress(iop_base, 0); - lram_addr = ASC_QADR_BEG; - for (i = 0; i < 32; i++, lram_addr += 2) { - AscWriteLramWord(iop_base, lram_addr, 0); - } -} - -static int AscSetLibErrorCode(ASC_DVC_VAR *asc_dvc, ushort err_code) -{ - if (asc_dvc->err_code == 0) { - asc_dvc->err_code = err_code; - AscWriteLramWord(asc_dvc->iop_base, ASCV_ASCDVC_ERR_CODE_W, - err_code); - } - return (err_code); -} - -static uchar -AscMsgOutSDTR(ASC_DVC_VAR *asc_dvc, uchar sdtr_period, uchar sdtr_offset) -{ - EXT_MSG sdtr_buf; - uchar sdtr_period_index; - PortAddr iop_base; - - iop_base = asc_dvc->iop_base; - sdtr_buf.msg_type = EXTENDED_MESSAGE; - sdtr_buf.msg_len = MS_SDTR_LEN; - sdtr_buf.msg_req = EXTENDED_SDTR; - sdtr_buf.xfer_period = sdtr_period; - sdtr_offset &= ASC_SYN_MAX_OFFSET; - sdtr_buf.req_ack_offset = sdtr_offset; - if ((sdtr_period_index = - AscGetSynPeriodIndex(asc_dvc, sdtr_period)) <= - asc_dvc->max_sdtr_index) { - AscMemWordCopyPtrToLram(iop_base, - ASCV_MSGOUT_BEG, - (uchar *)&sdtr_buf, - sizeof(EXT_MSG) >> 1); - return ((sdtr_period_index << 4) | sdtr_offset); - } else { - - sdtr_buf.req_ack_offset = 0; - AscMemWordCopyPtrToLram(iop_base, - ASCV_MSGOUT_BEG, - (uchar *)&sdtr_buf, - sizeof(EXT_MSG) >> 1); - return (0); - } -} - -static uchar -AscCalSDTRData(ASC_DVC_VAR *asc_dvc, uchar sdtr_period, uchar syn_offset) -{ - uchar byte; - uchar sdtr_period_ix; - - sdtr_period_ix = AscGetSynPeriodIndex(asc_dvc, sdtr_period); - if ((sdtr_period_ix > asc_dvc->max_sdtr_index) - ) { - return (0xFF); - } - byte = (sdtr_period_ix << 4) | (syn_offset & ASC_SYN_MAX_OFFSET); - return (byte); -} - -static void AscSetChipSDTR(PortAddr iop_base, uchar sdtr_data, uchar tid_no) -{ - AscSetChipSynRegAtID(iop_base, tid_no, sdtr_data); - AscPutMCodeSDTRDoneAtID(iop_base, tid_no, sdtr_data); - return; -} - -static uchar AscGetSynPeriodIndex(ASC_DVC_VAR *asc_dvc, uchar syn_time) -{ - uchar *period_table; - int max_index; - int min_index; - int i; - - period_table = asc_dvc->sdtr_period_tbl; - max_index = (int)asc_dvc->max_sdtr_index; - min_index = (int)asc_dvc->host_init_sdtr_index; - if ((syn_time <= period_table[max_index])) { - for (i = min_index; i < (max_index - 1); i++) { - if (syn_time <= period_table[i]) { - return ((uchar)i); - } - } - return ((uchar)max_index); - } else { - return ((uchar)(max_index + 1)); - } -} - -static uchar AscAllocFreeQueue(PortAddr iop_base, uchar free_q_head) -{ - ushort q_addr; - uchar next_qp; - uchar q_status; - - q_addr = ASC_QNO_TO_QADDR(free_q_head); - q_status = (uchar)AscReadLramByte(iop_base, - (ushort)(q_addr + - ASC_SCSIQ_B_STATUS)); - next_qp = AscReadLramByte(iop_base, (ushort)(q_addr + ASC_SCSIQ_B_FWD)); - if (((q_status & QS_READY) == 0) && (next_qp != ASC_QLINK_END)) { - return (next_qp); - } - return (ASC_QLINK_END); -} - -static uchar -AscAllocMultipleFreeQueue(PortAddr iop_base, uchar free_q_head, uchar n_free_q) -{ - uchar i; - - for (i = 0; i < n_free_q; i++) { - if ((free_q_head = AscAllocFreeQueue(iop_base, free_q_head)) - == ASC_QLINK_END) { - return (ASC_QLINK_END); - } - } - return (free_q_head); -} - -static int AscHostReqRiscHalt(PortAddr iop_base) -{ - int count = 0; - int sta = 0; - uchar saved_stop_code; - - if (AscIsChipHalted(iop_base)) - return (1); - saved_stop_code = AscReadLramByte(iop_base, ASCV_STOP_CODE_B); - AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, - ASC_STOP_HOST_REQ_RISC_HALT | ASC_STOP_REQ_RISC_STOP); - do { - if (AscIsChipHalted(iop_base)) { - sta = 1; - break; - } - mdelay(100); - } while (count++ < 20); - AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, saved_stop_code); - return (sta); -} - -static int AscStopQueueExe(PortAddr iop_base) -{ - int count = 0; - - if (AscReadLramByte(iop_base, ASCV_STOP_CODE_B) == 0) { - AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, - ASC_STOP_REQ_RISC_STOP); - do { - if (AscReadLramByte(iop_base, ASCV_STOP_CODE_B) & - ASC_STOP_ACK_RISC_STOP) { - return (1); - } - mdelay(100); - } while (count++ < 20); - } - return (0); -} - -static int AscStartChip(PortAddr iop_base) -{ - AscSetChipControl(iop_base, 0); - if ((AscGetChipStatus(iop_base) & CSW_HALTED) != 0) { - return (0); - } - return (1); -} - -static int AscStopChip(PortAddr iop_base) -{ - uchar cc_val; - - cc_val = - AscGetChipControl(iop_base) & - (~(CC_SINGLE_STEP | CC_TEST | CC_DIAG)); - AscSetChipControl(iop_base, (uchar)(cc_val | CC_HALT)); - AscSetChipIH(iop_base, INS_HALT); - AscSetChipIH(iop_base, INS_RFLAG_WTM); - if ((AscGetChipStatus(iop_base) & CSW_HALTED) == 0) { - return (0); - } - return (1); -} - -static int AscIsChipHalted(PortAddr iop_base) -{ - if ((AscGetChipStatus(iop_base) & CSW_HALTED) != 0) { - if ((AscGetChipControl(iop_base) & CC_HALT) != 0) { - return (1); - } - } - return (0); -} - -static void AscSetChipIH(PortAddr iop_base, ushort ins_code) -{ - AscSetBank(iop_base, 1); - AscWriteChipIH(iop_base, ins_code); - AscSetBank(iop_base, 0); - return; -} - -static void AscAckInterrupt(PortAddr iop_base) -{ - uchar host_flag; - uchar risc_flag; - ushort loop; - - loop = 0; - do { - risc_flag = AscReadLramByte(iop_base, ASCV_RISC_FLAG_B); - if (loop++ > 0x7FFF) { - break; - } - } while ((risc_flag & ASC_RISC_FLAG_GEN_INT) != 0); - host_flag = - AscReadLramByte(iop_base, - ASCV_HOST_FLAG_B) & (~ASC_HOST_FLAG_ACK_INT); - AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, - (uchar)(host_flag | ASC_HOST_FLAG_ACK_INT)); - AscSetChipStatus(iop_base, CIW_INT_ACK); - loop = 0; - while (AscGetChipStatus(iop_base) & CSW_INT_PENDING) { - AscSetChipStatus(iop_base, CIW_INT_ACK); - if (loop++ > 3) { - break; - } - } - AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, host_flag); - return; -} - -static void AscDisableInterrupt(PortAddr iop_base) -{ - ushort cfg; - - cfg = AscGetChipCfgLsw(iop_base); - AscSetChipCfgLsw(iop_base, cfg & (~ASC_CFG0_HOST_INT_ON)); - return; -} - -static void AscEnableInterrupt(PortAddr iop_base) -{ - ushort cfg; - - cfg = AscGetChipCfgLsw(iop_base); - AscSetChipCfgLsw(iop_base, cfg | ASC_CFG0_HOST_INT_ON); - return; -} - -static void AscSetBank(PortAddr iop_base, uchar bank) -{ - uchar val; - - val = AscGetChipControl(iop_base) & - (~ - (CC_SINGLE_STEP | CC_TEST | CC_DIAG | CC_SCSI_RESET | - CC_CHIP_RESET)); - if (bank == 1) { - val |= CC_BANK_ONE; - } else if (bank == 2) { - val |= CC_DIAG | CC_BANK_ONE; - } else { - val &= ~CC_BANK_ONE; - } - AscSetChipControl(iop_base, val); - return; -} - -static int AscResetChipAndScsiBus(ASC_DVC_VAR *asc_dvc) -{ - PortAddr iop_base; - int i = 10; - - iop_base = asc_dvc->iop_base; - while ((AscGetChipStatus(iop_base) & CSW_SCSI_RESET_ACTIVE) - && (i-- > 0)) { - mdelay(100); - } - AscStopChip(iop_base); - AscSetChipControl(iop_base, CC_CHIP_RESET | CC_SCSI_RESET | CC_HALT); - udelay(60); - AscSetChipIH(iop_base, INS_RFLAG_WTM); - AscSetChipIH(iop_base, INS_HALT); - AscSetChipControl(iop_base, CC_CHIP_RESET | CC_HALT); - AscSetChipControl(iop_base, CC_HALT); - mdelay(200); - AscSetChipStatus(iop_base, CIW_CLR_SCSI_RESET_INT); - AscSetChipStatus(iop_base, 0); - return (AscIsChipHalted(iop_base)); -} - -static ASC_DCNT __devinit AscGetMaxDmaCount(ushort bus_type) -{ - if (bus_type & ASC_IS_ISA) - return ASC_MAX_ISA_DMA_COUNT; - else if (bus_type & (ASC_IS_EISA | ASC_IS_VL)) - return ASC_MAX_VL_DMA_COUNT; - return ASC_MAX_PCI_DMA_COUNT; -} - -#ifdef CONFIG_ISA -static ushort __devinit AscGetIsaDmaChannel(PortAddr iop_base) -{ - ushort channel; - - channel = AscGetChipCfgLsw(iop_base) & 0x0003; - if (channel == 0x03) - return (0); - else if (channel == 0x00) - return (7); - return (channel + 4); -} - -static ushort __devinit AscSetIsaDmaChannel(PortAddr iop_base, ushort dma_channel) -{ - ushort cfg_lsw; - uchar value; - - if ((dma_channel >= 5) && (dma_channel <= 7)) { - if (dma_channel == 7) - value = 0x00; - else - value = dma_channel - 4; - cfg_lsw = AscGetChipCfgLsw(iop_base) & 0xFFFC; - cfg_lsw |= value; - AscSetChipCfgLsw(iop_base, cfg_lsw); - return (AscGetIsaDmaChannel(iop_base)); - } - return (0); -} - -static uchar __devinit AscSetIsaDmaSpeed(PortAddr iop_base, uchar speed_value) -{ - speed_value &= 0x07; - AscSetBank(iop_base, 1); - AscWriteChipDmaSpeed(iop_base, speed_value); - AscSetBank(iop_base, 0); - return (AscGetIsaDmaSpeed(iop_base)); -} - -static uchar __devinit AscGetIsaDmaSpeed(PortAddr iop_base) -{ - uchar speed_value; - - AscSetBank(iop_base, 1); - speed_value = AscReadChipDmaSpeed(iop_base); - speed_value &= 0x07; - AscSetBank(iop_base, 0); - return (speed_value); -} -#endif /* CONFIG_ISA */ - -static int __devinit AscInitGetConfig(asc_board_t *boardp) -{ - ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; - unsigned short warn_code = 0; - - asc_dvc->init_state = ASC_INIT_STATE_BEG_GET_CFG; - if (asc_dvc->err_code != 0) - return asc_dvc->err_code; - - if (AscFindSignature(asc_dvc->iop_base)) { - warn_code |= AscInitAscDvcVar(asc_dvc); - warn_code |= AscInitFromEEP(asc_dvc); - asc_dvc->init_state |= ASC_INIT_STATE_END_GET_CFG; - if (asc_dvc->scsi_reset_wait > ASC_MAX_SCSI_RESET_WAIT) - asc_dvc->scsi_reset_wait = ASC_MAX_SCSI_RESET_WAIT; - } else { - asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; - } - - switch (warn_code) { - case 0: /* No error */ - break; - case ASC_WARN_IO_PORT_ROTATE: - ASC_PRINT1("AscInitGetConfig: board %d: I/O port address " - "modified\n", boardp->id); - break; - case ASC_WARN_AUTO_CONFIG: - ASC_PRINT1("AscInitGetConfig: board %d: I/O port increment " - "switch enabled\n", boardp->id); - break; - case ASC_WARN_EEPROM_CHKSUM: - ASC_PRINT1("AscInitGetConfig: board %d: EEPROM checksum " - "error\n", boardp->id); - break; - case ASC_WARN_IRQ_MODIFIED: - ASC_PRINT1("AscInitGetConfig: board %d: IRQ modified\n", - boardp->id); - break; - case ASC_WARN_CMD_QNG_CONFLICT: - ASC_PRINT1("AscInitGetConfig: board %d: tag queuing enabled " - "w/o disconnects\n", boardp->id); - break; - default: - ASC_PRINT2("AscInitGetConfig: board %d: unknown warning: " - "0x%x\n", boardp->id, warn_code); - break; - } - - if (asc_dvc->err_code != 0) { - ASC_PRINT3("AscInitGetConfig: board %d error: init_state 0x%x, " - "err_code 0x%x\n", boardp->id, asc_dvc->init_state, - asc_dvc->err_code); - } - - return asc_dvc->err_code; -} - -static int __devinit AscInitSetConfig(struct pci_dev *pdev, asc_board_t *boardp) -{ - ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; - PortAddr iop_base = asc_dvc->iop_base; - unsigned short cfg_msw; - unsigned short warn_code = 0; - - asc_dvc->init_state |= ASC_INIT_STATE_BEG_SET_CFG; - if (asc_dvc->err_code != 0) - return asc_dvc->err_code; - if (!AscFindSignature(asc_dvc->iop_base)) { - asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; - return asc_dvc->err_code; - } - - cfg_msw = AscGetChipCfgMsw(iop_base); - if ((cfg_msw & ASC_CFG_MSW_CLR_MASK) != 0) { - cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; - warn_code |= ASC_WARN_CFG_MSW_RECOVER; - AscSetChipCfgMsw(iop_base, cfg_msw); - } - if ((asc_dvc->cfg->cmd_qng_enabled & asc_dvc->cfg->disc_enable) != - asc_dvc->cfg->cmd_qng_enabled) { - asc_dvc->cfg->disc_enable = asc_dvc->cfg->cmd_qng_enabled; - warn_code |= ASC_WARN_CMD_QNG_CONFLICT; - } - if (AscGetChipStatus(iop_base) & CSW_AUTO_CONFIG) { - warn_code |= ASC_WARN_AUTO_CONFIG; - } - if ((asc_dvc->bus_type & (ASC_IS_ISA | ASC_IS_VL)) != 0) { - if (AscSetChipIRQ(iop_base, asc_dvc->irq_no, asc_dvc->bus_type) - != asc_dvc->irq_no) { - asc_dvc->err_code |= ASC_IERR_SET_IRQ_NO; - } - } -#ifdef CONFIG_PCI - if (asc_dvc->bus_type & ASC_IS_PCI) { - cfg_msw &= 0xFFC0; - AscSetChipCfgMsw(iop_base, cfg_msw); - if ((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == ASC_IS_PCI_ULTRA) { - } else { - if ((pdev->device == PCI_DEVICE_ID_ASP_1200A) || - (pdev->device == PCI_DEVICE_ID_ASP_ABP940)) { - asc_dvc->bug_fix_cntl |= ASC_BUG_FIX_IF_NOT_DWB; - asc_dvc->bug_fix_cntl |= - ASC_BUG_FIX_ASYN_USE_SYN; - } - } - } else -#endif /* CONFIG_PCI */ - if (asc_dvc->bus_type == ASC_IS_ISAPNP) { - if (AscGetChipVersion(iop_base, asc_dvc->bus_type) - == ASC_CHIP_VER_ASYN_BUG) { - asc_dvc->bug_fix_cntl |= ASC_BUG_FIX_ASYN_USE_SYN; - } - } - if (AscSetChipScsiID(iop_base, asc_dvc->cfg->chip_scsi_id) != - asc_dvc->cfg->chip_scsi_id) { - asc_dvc->err_code |= ASC_IERR_SET_SCSI_ID; - } -#ifdef CONFIG_ISA - if (asc_dvc->bus_type & ASC_IS_ISA) { - AscSetIsaDmaChannel(iop_base, asc_dvc->cfg->isa_dma_channel); - AscSetIsaDmaSpeed(iop_base, asc_dvc->cfg->isa_dma_speed); - } -#endif /* CONFIG_ISA */ - - asc_dvc->init_state |= ASC_INIT_STATE_END_SET_CFG; - - switch (warn_code) { - case 0: /* No error. */ - break; - case ASC_WARN_IO_PORT_ROTATE: - ASC_PRINT1("AscInitSetConfig: board %d: I/O port address " - "modified\n", boardp->id); - break; - case ASC_WARN_AUTO_CONFIG: - ASC_PRINT1("AscInitSetConfig: board %d: I/O port increment " - "switch enabled\n", boardp->id); - break; - case ASC_WARN_EEPROM_CHKSUM: - ASC_PRINT1("AscInitSetConfig: board %d: EEPROM checksum " - "error\n", boardp->id); - break; - case ASC_WARN_IRQ_MODIFIED: - ASC_PRINT1("AscInitSetConfig: board %d: IRQ modified\n", - boardp->id); - break; - case ASC_WARN_CMD_QNG_CONFLICT: - ASC_PRINT1("AscInitSetConfig: board %d: tag queuing w/o " - "disconnects\n", - boardp->id); - break; - default: - ASC_PRINT2("AscInitSetConfig: board %d: unknown warning: " - "0x%x\n", boardp->id, warn_code); - break; - } - - if (asc_dvc->err_code != 0) { - ASC_PRINT3("AscInitSetConfig: board %d error: init_state 0x%x, " - "err_code 0x%x\n", boardp->id, asc_dvc->init_state, - asc_dvc->err_code); - } - - return asc_dvc->err_code; -} - -static ushort AscInitAsc1000Driver(ASC_DVC_VAR *asc_dvc) -{ - ushort warn_code; - PortAddr iop_base; - - iop_base = asc_dvc->iop_base; - warn_code = 0; - if ((asc_dvc->dvc_cntl & ASC_CNTL_RESET_SCSI) && - !(asc_dvc->init_state & ASC_INIT_RESET_SCSI_DONE)) { - AscResetChipAndScsiBus(asc_dvc); - mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ - } - asc_dvc->init_state |= ASC_INIT_STATE_BEG_LOAD_MC; - if (asc_dvc->err_code != 0) - return (UW_ERR); - if (!AscFindSignature(asc_dvc->iop_base)) { - asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; - return (warn_code); - } - AscDisableInterrupt(iop_base); - warn_code |= AscInitLram(asc_dvc); - if (asc_dvc->err_code != 0) - return (UW_ERR); - ASC_DBG1(1, "AscInitAsc1000Driver: _asc_mcode_chksum 0x%lx\n", - (ulong)_asc_mcode_chksum); - if (AscLoadMicroCode(iop_base, 0, _asc_mcode_buf, - _asc_mcode_size) != _asc_mcode_chksum) { - asc_dvc->err_code |= ASC_IERR_MCODE_CHKSUM; - return (warn_code); - } - warn_code |= AscInitMicroCodeVar(asc_dvc); - asc_dvc->init_state |= ASC_INIT_STATE_END_LOAD_MC; - AscEnableInterrupt(iop_base); - return (warn_code); -} - -static ushort __devinit AscInitAscDvcVar(ASC_DVC_VAR *asc_dvc) -{ - int i; - PortAddr iop_base; - ushort warn_code; - uchar chip_version; - - iop_base = asc_dvc->iop_base; - warn_code = 0; - asc_dvc->err_code = 0; - if ((asc_dvc->bus_type & - (ASC_IS_ISA | ASC_IS_PCI | ASC_IS_EISA | ASC_IS_VL)) == 0) { - asc_dvc->err_code |= ASC_IERR_NO_BUS_TYPE; - } - AscSetChipControl(iop_base, CC_HALT); - AscSetChipStatus(iop_base, 0); - asc_dvc->bug_fix_cntl = 0; - asc_dvc->pci_fix_asyn_xfer = 0; - asc_dvc->pci_fix_asyn_xfer_always = 0; - /* asc_dvc->init_state initalized in AscInitGetConfig(). */ - asc_dvc->sdtr_done = 0; - asc_dvc->cur_total_qng = 0; - asc_dvc->is_in_int = 0; - asc_dvc->in_critical_cnt = 0; - asc_dvc->last_q_shortage = 0; - asc_dvc->use_tagged_qng = 0; - asc_dvc->no_scam = 0; - asc_dvc->unit_not_ready = 0; - asc_dvc->queue_full_or_busy = 0; - asc_dvc->redo_scam = 0; - asc_dvc->res2 = 0; - asc_dvc->host_init_sdtr_index = 0; - asc_dvc->cfg->can_tagged_qng = 0; - asc_dvc->cfg->cmd_qng_enabled = 0; - asc_dvc->dvc_cntl = ASC_DEF_DVC_CNTL; - asc_dvc->init_sdtr = 0; - asc_dvc->max_total_qng = ASC_DEF_MAX_TOTAL_QNG; - asc_dvc->scsi_reset_wait = 3; - asc_dvc->start_motor = ASC_SCSI_WIDTH_BIT_SET; - asc_dvc->max_dma_count = AscGetMaxDmaCount(asc_dvc->bus_type); - asc_dvc->cfg->sdtr_enable = ASC_SCSI_WIDTH_BIT_SET; - asc_dvc->cfg->disc_enable = ASC_SCSI_WIDTH_BIT_SET; - asc_dvc->cfg->chip_scsi_id = ASC_DEF_CHIP_SCSI_ID; - asc_dvc->cfg->lib_serial_no = ASC_LIB_SERIAL_NUMBER; - asc_dvc->cfg->lib_version = (ASC_LIB_VERSION_MAJOR << 8) | - ASC_LIB_VERSION_MINOR; - chip_version = AscGetChipVersion(iop_base, asc_dvc->bus_type); - asc_dvc->cfg->chip_version = chip_version; - asc_dvc->sdtr_period_tbl[0] = SYN_XFER_NS_0; - asc_dvc->sdtr_period_tbl[1] = SYN_XFER_NS_1; - asc_dvc->sdtr_period_tbl[2] = SYN_XFER_NS_2; - asc_dvc->sdtr_period_tbl[3] = SYN_XFER_NS_3; - asc_dvc->sdtr_period_tbl[4] = SYN_XFER_NS_4; - asc_dvc->sdtr_period_tbl[5] = SYN_XFER_NS_5; - asc_dvc->sdtr_period_tbl[6] = SYN_XFER_NS_6; - asc_dvc->sdtr_period_tbl[7] = SYN_XFER_NS_7; - asc_dvc->max_sdtr_index = 7; - if ((asc_dvc->bus_type & ASC_IS_PCI) && - (chip_version >= ASC_CHIP_VER_PCI_ULTRA_3150)) { - asc_dvc->bus_type = ASC_IS_PCI_ULTRA; - asc_dvc->sdtr_period_tbl[0] = SYN_ULTRA_XFER_NS_0; - asc_dvc->sdtr_period_tbl[1] = SYN_ULTRA_XFER_NS_1; - asc_dvc->sdtr_period_tbl[2] = SYN_ULTRA_XFER_NS_2; - asc_dvc->sdtr_period_tbl[3] = SYN_ULTRA_XFER_NS_3; - asc_dvc->sdtr_period_tbl[4] = SYN_ULTRA_XFER_NS_4; - asc_dvc->sdtr_period_tbl[5] = SYN_ULTRA_XFER_NS_5; - asc_dvc->sdtr_period_tbl[6] = SYN_ULTRA_XFER_NS_6; - asc_dvc->sdtr_period_tbl[7] = SYN_ULTRA_XFER_NS_7; - asc_dvc->sdtr_period_tbl[8] = SYN_ULTRA_XFER_NS_8; - asc_dvc->sdtr_period_tbl[9] = SYN_ULTRA_XFER_NS_9; - asc_dvc->sdtr_period_tbl[10] = SYN_ULTRA_XFER_NS_10; - asc_dvc->sdtr_period_tbl[11] = SYN_ULTRA_XFER_NS_11; - asc_dvc->sdtr_period_tbl[12] = SYN_ULTRA_XFER_NS_12; - asc_dvc->sdtr_period_tbl[13] = SYN_ULTRA_XFER_NS_13; - asc_dvc->sdtr_period_tbl[14] = SYN_ULTRA_XFER_NS_14; - asc_dvc->sdtr_period_tbl[15] = SYN_ULTRA_XFER_NS_15; - asc_dvc->max_sdtr_index = 15; - if (chip_version == ASC_CHIP_VER_PCI_ULTRA_3150) { - AscSetExtraControl(iop_base, - (SEC_ACTIVE_NEGATE | SEC_SLEW_RATE)); - } else if (chip_version >= ASC_CHIP_VER_PCI_ULTRA_3050) { - AscSetExtraControl(iop_base, - (SEC_ACTIVE_NEGATE | - SEC_ENABLE_FILTER)); - } - } - if (asc_dvc->bus_type == ASC_IS_PCI) { - AscSetExtraControl(iop_base, - (SEC_ACTIVE_NEGATE | SEC_SLEW_RATE)); - } - - asc_dvc->cfg->isa_dma_speed = ASC_DEF_ISA_DMA_SPEED; -#ifdef CONFIG_ISA - if ((asc_dvc->bus_type & ASC_IS_ISA) != 0) { - if (chip_version >= ASC_CHIP_MIN_VER_ISA_PNP) { - AscSetChipIFC(iop_base, IFC_INIT_DEFAULT); - asc_dvc->bus_type = ASC_IS_ISAPNP; - } - asc_dvc->cfg->isa_dma_channel = - (uchar)AscGetIsaDmaChannel(iop_base); - } -#endif /* CONFIG_ISA */ - for (i = 0; i <= ASC_MAX_TID; i++) { - asc_dvc->cur_dvc_qng[i] = 0; - asc_dvc->max_dvc_qng[i] = ASC_MAX_SCSI1_QNG; - asc_dvc->scsiq_busy_head[i] = (ASC_SCSI_Q *)0L; - asc_dvc->scsiq_busy_tail[i] = (ASC_SCSI_Q *)0L; - asc_dvc->cfg->max_tag_qng[i] = ASC_MAX_INRAM_TAG_QNG; - } - return (warn_code); -} - -static ushort __devinit AscInitFromEEP(ASC_DVC_VAR *asc_dvc) -{ - ASCEEP_CONFIG eep_config_buf; - ASCEEP_CONFIG *eep_config; - PortAddr iop_base; - ushort chksum; - ushort warn_code; - ushort cfg_msw, cfg_lsw; - int i; - int write_eep = 0; - - iop_base = asc_dvc->iop_base; - warn_code = 0; - AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0x00FE); - AscStopQueueExe(iop_base); - if ((AscStopChip(iop_base) == FALSE) || - (AscGetChipScsiCtrl(iop_base) != 0)) { - asc_dvc->init_state |= ASC_INIT_RESET_SCSI_DONE; - AscResetChipAndScsiBus(asc_dvc); - mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ - } - if (AscIsChipHalted(iop_base) == FALSE) { - asc_dvc->err_code |= ASC_IERR_START_STOP_CHIP; - return (warn_code); - } - AscSetPCAddr(iop_base, ASC_MCODE_START_ADDR); - if (AscGetPCAddr(iop_base) != ASC_MCODE_START_ADDR) { - asc_dvc->err_code |= ASC_IERR_SET_PC_ADDR; - return (warn_code); - } - eep_config = (ASCEEP_CONFIG *)&eep_config_buf; - cfg_msw = AscGetChipCfgMsw(iop_base); - cfg_lsw = AscGetChipCfgLsw(iop_base); - if ((cfg_msw & ASC_CFG_MSW_CLR_MASK) != 0) { - cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; - warn_code |= ASC_WARN_CFG_MSW_RECOVER; - AscSetChipCfgMsw(iop_base, cfg_msw); - } - chksum = AscGetEEPConfig(iop_base, eep_config, asc_dvc->bus_type); - ASC_DBG1(1, "AscInitFromEEP: chksum 0x%x\n", chksum); - if (chksum == 0) { - chksum = 0xaa55; - } - if (AscGetChipStatus(iop_base) & CSW_AUTO_CONFIG) { - warn_code |= ASC_WARN_AUTO_CONFIG; - if (asc_dvc->cfg->chip_version == 3) { - if (eep_config->cfg_lsw != cfg_lsw) { - warn_code |= ASC_WARN_EEPROM_RECOVER; - eep_config->cfg_lsw = - AscGetChipCfgLsw(iop_base); - } - if (eep_config->cfg_msw != cfg_msw) { - warn_code |= ASC_WARN_EEPROM_RECOVER; - eep_config->cfg_msw = - AscGetChipCfgMsw(iop_base); - } - } - } - eep_config->cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; - eep_config->cfg_lsw |= ASC_CFG0_HOST_INT_ON; - ASC_DBG1(1, "AscInitFromEEP: eep_config->chksum 0x%x\n", - eep_config->chksum); - if (chksum != eep_config->chksum) { - if (AscGetChipVersion(iop_base, asc_dvc->bus_type) == - ASC_CHIP_VER_PCI_ULTRA_3050) { - ASC_DBG(1, - "AscInitFromEEP: chksum error ignored; EEPROM-less board\n"); - eep_config->init_sdtr = 0xFF; - eep_config->disc_enable = 0xFF; - eep_config->start_motor = 0xFF; - eep_config->use_cmd_qng = 0; - eep_config->max_total_qng = 0xF0; - eep_config->max_tag_qng = 0x20; - eep_config->cntl = 0xBFFF; - ASC_EEP_SET_CHIP_ID(eep_config, 7); - eep_config->no_scam = 0; - eep_config->adapter_info[0] = 0; - eep_config->adapter_info[1] = 0; - eep_config->adapter_info[2] = 0; - eep_config->adapter_info[3] = 0; - eep_config->adapter_info[4] = 0; - /* Indicate EEPROM-less board. */ - eep_config->adapter_info[5] = 0xBB; - } else { - ASC_PRINT - ("AscInitFromEEP: EEPROM checksum error; Will try to re-write EEPROM.\n"); - write_eep = 1; - warn_code |= ASC_WARN_EEPROM_CHKSUM; - } - } - asc_dvc->cfg->sdtr_enable = eep_config->init_sdtr; - asc_dvc->cfg->disc_enable = eep_config->disc_enable; - asc_dvc->cfg->cmd_qng_enabled = eep_config->use_cmd_qng; - asc_dvc->cfg->isa_dma_speed = ASC_EEP_GET_DMA_SPD(eep_config); - asc_dvc->start_motor = eep_config->start_motor; - asc_dvc->dvc_cntl = eep_config->cntl; - asc_dvc->no_scam = eep_config->no_scam; - asc_dvc->cfg->adapter_info[0] = eep_config->adapter_info[0]; - asc_dvc->cfg->adapter_info[1] = eep_config->adapter_info[1]; - asc_dvc->cfg->adapter_info[2] = eep_config->adapter_info[2]; - asc_dvc->cfg->adapter_info[3] = eep_config->adapter_info[3]; - asc_dvc->cfg->adapter_info[4] = eep_config->adapter_info[4]; - asc_dvc->cfg->adapter_info[5] = eep_config->adapter_info[5]; - if (!AscTestExternalLram(asc_dvc)) { - if (((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == - ASC_IS_PCI_ULTRA)) { - eep_config->max_total_qng = - ASC_MAX_PCI_ULTRA_INRAM_TOTAL_QNG; - eep_config->max_tag_qng = - ASC_MAX_PCI_ULTRA_INRAM_TAG_QNG; - } else { - eep_config->cfg_msw |= 0x0800; - cfg_msw |= 0x0800; - AscSetChipCfgMsw(iop_base, cfg_msw); - eep_config->max_total_qng = ASC_MAX_PCI_INRAM_TOTAL_QNG; - eep_config->max_tag_qng = ASC_MAX_INRAM_TAG_QNG; - } - } else { - } - if (eep_config->max_total_qng < ASC_MIN_TOTAL_QNG) { - eep_config->max_total_qng = ASC_MIN_TOTAL_QNG; - } - if (eep_config->max_total_qng > ASC_MAX_TOTAL_QNG) { - eep_config->max_total_qng = ASC_MAX_TOTAL_QNG; - } - if (eep_config->max_tag_qng > eep_config->max_total_qng) { - eep_config->max_tag_qng = eep_config->max_total_qng; - } - if (eep_config->max_tag_qng < ASC_MIN_TAG_Q_PER_DVC) { - eep_config->max_tag_qng = ASC_MIN_TAG_Q_PER_DVC; - } - asc_dvc->max_total_qng = eep_config->max_total_qng; - if ((eep_config->use_cmd_qng & eep_config->disc_enable) != - eep_config->use_cmd_qng) { - eep_config->disc_enable = eep_config->use_cmd_qng; - warn_code |= ASC_WARN_CMD_QNG_CONFLICT; - } - if (asc_dvc->bus_type & (ASC_IS_ISA | ASC_IS_VL | ASC_IS_EISA)) { - asc_dvc->irq_no = AscGetChipIRQ(iop_base, asc_dvc->bus_type); - } - ASC_EEP_SET_CHIP_ID(eep_config, - ASC_EEP_GET_CHIP_ID(eep_config) & ASC_MAX_TID); - asc_dvc->cfg->chip_scsi_id = ASC_EEP_GET_CHIP_ID(eep_config); - if (((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == ASC_IS_PCI_ULTRA) && - !(asc_dvc->dvc_cntl & ASC_CNTL_SDTR_ENABLE_ULTRA)) { - asc_dvc->host_init_sdtr_index = ASC_SDTR_ULTRA_PCI_10MB_INDEX; - } - - for (i = 0; i <= ASC_MAX_TID; i++) { - asc_dvc->dos_int13_table[i] = eep_config->dos_int13_table[i]; - asc_dvc->cfg->max_tag_qng[i] = eep_config->max_tag_qng; - asc_dvc->cfg->sdtr_period_offset[i] = - (uchar)(ASC_DEF_SDTR_OFFSET | - (asc_dvc->host_init_sdtr_index << 4)); - } - eep_config->cfg_msw = AscGetChipCfgMsw(iop_base); - if (write_eep) { - if ((i = - AscSetEEPConfig(iop_base, eep_config, - asc_dvc->bus_type)) != 0) { - ASC_PRINT1 - ("AscInitFromEEP: Failed to re-write EEPROM with %d errors.\n", - i); - } else { - ASC_PRINT - ("AscInitFromEEP: Successfully re-wrote EEPROM.\n"); - } - } - return (warn_code); -} - -static ushort AscInitMicroCodeVar(ASC_DVC_VAR *asc_dvc) -{ - int i; - ushort warn_code; - PortAddr iop_base; - ASC_PADDR phy_addr; - ASC_DCNT phy_size; - - iop_base = asc_dvc->iop_base; - warn_code = 0; - for (i = 0; i <= ASC_MAX_TID; i++) { - AscPutMCodeInitSDTRAtID(iop_base, i, - asc_dvc->cfg->sdtr_period_offset[i] - ); - } - - AscInitQLinkVar(asc_dvc); - AscWriteLramByte(iop_base, ASCV_DISC_ENABLE_B, - asc_dvc->cfg->disc_enable); - AscWriteLramByte(iop_base, ASCV_HOSTSCSI_ID_B, - ASC_TID_TO_TARGET_ID(asc_dvc->cfg->chip_scsi_id)); - - /* Align overrun buffer on an 8 byte boundary. */ - phy_addr = virt_to_bus(asc_dvc->cfg->overrun_buf); - phy_addr = cpu_to_le32((phy_addr + 7) & ~0x7); - AscMemDWordCopyPtrToLram(iop_base, ASCV_OVERRUN_PADDR_D, - (uchar *)&phy_addr, 1); - phy_size = cpu_to_le32(ASC_OVERRUN_BSIZE - 8); - AscMemDWordCopyPtrToLram(iop_base, ASCV_OVERRUN_BSIZE_D, - (uchar *)&phy_size, 1); - - asc_dvc->cfg->mcode_date = - AscReadLramWord(iop_base, (ushort)ASCV_MC_DATE_W); - asc_dvc->cfg->mcode_version = - AscReadLramWord(iop_base, (ushort)ASCV_MC_VER_W); - - AscSetPCAddr(iop_base, ASC_MCODE_START_ADDR); - if (AscGetPCAddr(iop_base) != ASC_MCODE_START_ADDR) { - asc_dvc->err_code |= ASC_IERR_SET_PC_ADDR; - return (warn_code); - } - if (AscStartChip(iop_base) != 1) { - asc_dvc->err_code |= ASC_IERR_START_STOP_CHIP; - return (warn_code); - } - - return (warn_code); -} - -static int __devinit AscTestExternalLram(ASC_DVC_VAR *asc_dvc) -{ - PortAddr iop_base; - ushort q_addr; - ushort saved_word; - int sta; - - iop_base = asc_dvc->iop_base; - sta = 0; - q_addr = ASC_QNO_TO_QADDR(241); - saved_word = AscReadLramWord(iop_base, q_addr); - AscSetChipLramAddr(iop_base, q_addr); - AscSetChipLramData(iop_base, 0x55AA); - mdelay(10); - AscSetChipLramAddr(iop_base, q_addr); - if (AscGetChipLramData(iop_base) == 0x55AA) { - sta = 1; - AscWriteLramWord(iop_base, q_addr, saved_word); - } - return (sta); -} - -static int __devinit AscWriteEEPCmdReg(PortAddr iop_base, uchar cmd_reg) -{ - uchar read_back; - int retry; - - retry = 0; - while (TRUE) { - AscSetChipEEPCmd(iop_base, cmd_reg); - mdelay(1); - read_back = AscGetChipEEPCmd(iop_base); - if (read_back == cmd_reg) { - return (1); - } - if (retry++ > ASC_EEP_MAX_RETRY) { - return (0); - } - } -} - -static int __devinit AscWriteEEPDataReg(PortAddr iop_base, ushort data_reg) -{ - ushort read_back; - int retry; - - retry = 0; - while (TRUE) { - AscSetChipEEPData(iop_base, data_reg); - mdelay(1); - read_back = AscGetChipEEPData(iop_base); - if (read_back == data_reg) { - return (1); - } - if (retry++ > ASC_EEP_MAX_RETRY) { - return (0); - } - } -} - -static void __devinit AscWaitEEPRead(void) -{ - mdelay(1); - return; -} - -static void __devinit AscWaitEEPWrite(void) -{ - mdelay(20); - return; -} - -static ushort __devinit AscReadEEPWord(PortAddr iop_base, uchar addr) -{ - ushort read_wval; - uchar cmd_reg; - - AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_DISABLE); - AscWaitEEPRead(); - cmd_reg = addr | ASC_EEP_CMD_READ; - AscWriteEEPCmdReg(iop_base, cmd_reg); - AscWaitEEPRead(); - read_wval = AscGetChipEEPData(iop_base); - AscWaitEEPRead(); - return (read_wval); -} - -static ushort __devinit -AscWriteEEPWord(PortAddr iop_base, uchar addr, ushort word_val) -{ - ushort read_wval; - - read_wval = AscReadEEPWord(iop_base, addr); - if (read_wval != word_val) { - AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_ABLE); - AscWaitEEPRead(); - AscWriteEEPDataReg(iop_base, word_val); - AscWaitEEPRead(); - AscWriteEEPCmdReg(iop_base, - (uchar)((uchar)ASC_EEP_CMD_WRITE | addr)); - AscWaitEEPWrite(); - AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_DISABLE); - AscWaitEEPRead(); - return (AscReadEEPWord(iop_base, addr)); - } - return (read_wval); -} - -static ushort __devinit -AscGetEEPConfig(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, ushort bus_type) -{ - ushort wval; - ushort sum; - ushort *wbuf; - int cfg_beg; - int cfg_end; - int uchar_end_in_config = ASC_EEP_MAX_DVC_ADDR - 2; - int s_addr; - - wbuf = (ushort *)cfg_buf; - sum = 0; - /* Read two config words; Byte-swapping done by AscReadEEPWord(). */ - for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) { - *wbuf = AscReadEEPWord(iop_base, (uchar)s_addr); - sum += *wbuf; - } - if (bus_type & ASC_IS_VL) { - cfg_beg = ASC_EEP_DVC_CFG_BEG_VL; - cfg_end = ASC_EEP_MAX_DVC_ADDR_VL; - } else { - cfg_beg = ASC_EEP_DVC_CFG_BEG; - cfg_end = ASC_EEP_MAX_DVC_ADDR; - } - for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) { - wval = AscReadEEPWord(iop_base, (uchar)s_addr); - if (s_addr <= uchar_end_in_config) { - /* - * Swap all char fields - must unswap bytes already swapped - * by AscReadEEPWord(). - */ - *wbuf = le16_to_cpu(wval); - } else { - /* Don't swap word field at the end - cntl field. */ - *wbuf = wval; - } - sum += wval; /* Checksum treats all EEPROM data as words. */ - } - /* - * Read the checksum word which will be compared against 'sum' - * by the caller. Word field already swapped. - */ - *wbuf = AscReadEEPWord(iop_base, (uchar)s_addr); - return (sum); -} - -static int __devinit -AscSetEEPConfigOnce(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, ushort bus_type) -{ - int n_error; - ushort *wbuf; - ushort word; - ushort sum; - int s_addr; - int cfg_beg; - int cfg_end; - int uchar_end_in_config = ASC_EEP_MAX_DVC_ADDR - 2; - - wbuf = (ushort *)cfg_buf; - n_error = 0; - sum = 0; - /* Write two config words; AscWriteEEPWord() will swap bytes. */ - for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) { - sum += *wbuf; - if (*wbuf != AscWriteEEPWord(iop_base, (uchar)s_addr, *wbuf)) { - n_error++; - } - } - if (bus_type & ASC_IS_VL) { - cfg_beg = ASC_EEP_DVC_CFG_BEG_VL; - cfg_end = ASC_EEP_MAX_DVC_ADDR_VL; - } else { - cfg_beg = ASC_EEP_DVC_CFG_BEG; - cfg_end = ASC_EEP_MAX_DVC_ADDR; - } - for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) { - if (s_addr <= uchar_end_in_config) { - /* - * This is a char field. Swap char fields before they are - * swapped again by AscWriteEEPWord(). - */ - word = cpu_to_le16(*wbuf); - if (word != - AscWriteEEPWord(iop_base, (uchar)s_addr, word)) { - n_error++; - } - } else { - /* Don't swap word field at the end - cntl field. */ - if (*wbuf != - AscWriteEEPWord(iop_base, (uchar)s_addr, *wbuf)) { - n_error++; - } - } - sum += *wbuf; /* Checksum calculated from word values. */ - } - /* Write checksum word. It will be swapped by AscWriteEEPWord(). */ - *wbuf = sum; - if (sum != AscWriteEEPWord(iop_base, (uchar)s_addr, sum)) { - n_error++; - } - - /* Read EEPROM back again. */ - wbuf = (ushort *)cfg_buf; - /* - * Read two config words; Byte-swapping done by AscReadEEPWord(). - */ - for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) { - if (*wbuf != AscReadEEPWord(iop_base, (uchar)s_addr)) { - n_error++; - } - } - if (bus_type & ASC_IS_VL) { - cfg_beg = ASC_EEP_DVC_CFG_BEG_VL; - cfg_end = ASC_EEP_MAX_DVC_ADDR_VL; - } else { - cfg_beg = ASC_EEP_DVC_CFG_BEG; - cfg_end = ASC_EEP_MAX_DVC_ADDR; - } - for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) { - if (s_addr <= uchar_end_in_config) { - /* - * Swap all char fields. Must unswap bytes already swapped - * by AscReadEEPWord(). - */ - word = - le16_to_cpu(AscReadEEPWord - (iop_base, (uchar)s_addr)); - } else { - /* Don't swap word field at the end - cntl field. */ - word = AscReadEEPWord(iop_base, (uchar)s_addr); - } - if (*wbuf != word) { - n_error++; - } - } - /* Read checksum; Byte swapping not needed. */ - if (AscReadEEPWord(iop_base, (uchar)s_addr) != sum) { - n_error++; - } - return (n_error); -} - -static int __devinit -AscSetEEPConfig(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, ushort bus_type) -{ - int retry; - int n_error; - - retry = 0; - while (TRUE) { - if ((n_error = AscSetEEPConfigOnce(iop_base, cfg_buf, - bus_type)) == 0) { - break; - } - if (++retry > ASC_EEP_MAX_RETRY) { - break; - } - } - return (n_error); -} - -static void AscAsyncFix(ASC_DVC_VAR *asc_dvc, struct scsi_device *sdev) -{ - char type = sdev->type; - ASC_SCSI_BIT_ID_TYPE tid_bits = 1 << sdev->id; - - if (!(asc_dvc->bug_fix_cntl & ASC_BUG_FIX_ASYN_USE_SYN)) - return; - if (asc_dvc->init_sdtr & tid_bits) - return; - - if ((type == TYPE_ROM) && (strncmp(sdev->vendor, "HP ", 3) == 0)) - asc_dvc->pci_fix_asyn_xfer_always |= tid_bits; - - asc_dvc->pci_fix_asyn_xfer |= tid_bits; - if ((type == TYPE_PROCESSOR) || (type == TYPE_SCANNER) || - (type == TYPE_ROM) || (type == TYPE_TAPE)) - asc_dvc->pci_fix_asyn_xfer &= ~tid_bits; - - if (asc_dvc->pci_fix_asyn_xfer & tid_bits) - AscSetRunChipSynRegAtID(asc_dvc->iop_base, sdev->id, - ASYN_SDTR_DATA_FIX_PCI_REV_AB); -} - -static uchar AscReadLramByte(PortAddr iop_base, ushort addr) -{ - uchar byte_data; - ushort word_data; - - if (isodd_word(addr)) { - AscSetChipLramAddr(iop_base, addr - 1); - word_data = AscGetChipLramData(iop_base); - byte_data = (uchar)((word_data >> 8) & 0xFF); - } else { - AscSetChipLramAddr(iop_base, addr); - word_data = AscGetChipLramData(iop_base); - byte_data = (uchar)(word_data & 0xFF); - } - return (byte_data); -} - -static ushort AscReadLramWord(PortAddr iop_base, ushort addr) -{ - ushort word_data; - - AscSetChipLramAddr(iop_base, addr); - word_data = AscGetChipLramData(iop_base); - return (word_data); -} - -#if CC_VERY_LONG_SG_LIST -static ASC_DCNT AscReadLramDWord(PortAddr iop_base, ushort addr) -{ - ushort val_low, val_high; - ASC_DCNT dword_data; - - AscSetChipLramAddr(iop_base, addr); - val_low = AscGetChipLramData(iop_base); - val_high = AscGetChipLramData(iop_base); - dword_data = ((ASC_DCNT) val_high << 16) | (ASC_DCNT) val_low; - return (dword_data); -} -#endif /* CC_VERY_LONG_SG_LIST */ - -static void AscWriteLramWord(PortAddr iop_base, ushort addr, ushort word_val) -{ - AscSetChipLramAddr(iop_base, addr); - AscSetChipLramData(iop_base, word_val); - return; -} - -static void AscWriteLramByte(PortAddr iop_base, ushort addr, uchar byte_val) -{ - ushort word_data; - - if (isodd_word(addr)) { - addr--; - word_data = AscReadLramWord(iop_base, addr); - word_data &= 0x00FF; - word_data |= (((ushort)byte_val << 8) & 0xFF00); - } else { - word_data = AscReadLramWord(iop_base, addr); - word_data &= 0xFF00; - word_data |= ((ushort)byte_val & 0x00FF); - } - AscWriteLramWord(iop_base, addr, word_data); - return; -} - -/* - * Copy 2 bytes to LRAM. - * - * The source data is assumed to be in little-endian order in memory - * and is maintained in little-endian order when written to LRAM. - */ -static void -AscMemWordCopyPtrToLram(PortAddr iop_base, - ushort s_addr, uchar *s_buffer, int words) -{ - int i; - - AscSetChipLramAddr(iop_base, s_addr); - for (i = 0; i < 2 * words; i += 2) { - /* - * On a little-endian system the second argument below - * produces a little-endian ushort which is written to - * LRAM in little-endian order. On a big-endian system - * the second argument produces a big-endian ushort which - * is "transparently" byte-swapped by outpw() and written - * in little-endian order to LRAM. - */ - outpw(iop_base + IOP_RAM_DATA, - ((ushort)s_buffer[i + 1] << 8) | s_buffer[i]); - } - return; -} - -/* - * Copy 4 bytes to LRAM. - * - * The source data is assumed to be in little-endian order in memory - * and is maintained in little-endian order when writen to LRAM. - */ -static void -AscMemDWordCopyPtrToLram(PortAddr iop_base, - ushort s_addr, uchar *s_buffer, int dwords) -{ - int i; - - AscSetChipLramAddr(iop_base, s_addr); - for (i = 0; i < 4 * dwords; i += 4) { - outpw(iop_base + IOP_RAM_DATA, ((ushort)s_buffer[i + 1] << 8) | s_buffer[i]); /* LSW */ - outpw(iop_base + IOP_RAM_DATA, ((ushort)s_buffer[i + 3] << 8) | s_buffer[i + 2]); /* MSW */ - } - return; -} - -/* - * Copy 2 bytes from LRAM. - * - * The source data is assumed to be in little-endian order in LRAM - * and is maintained in little-endian order when written to memory. - */ -static void -AscMemWordCopyPtrFromLram(PortAddr iop_base, - ushort s_addr, uchar *d_buffer, int words) -{ - int i; - ushort word; - - AscSetChipLramAddr(iop_base, s_addr); - for (i = 0; i < 2 * words; i += 2) { - word = inpw(iop_base + IOP_RAM_DATA); - d_buffer[i] = word & 0xff; - d_buffer[i + 1] = (word >> 8) & 0xff; - } - return; -} - -static ASC_DCNT AscMemSumLramWord(PortAddr iop_base, ushort s_addr, int words) -{ - ASC_DCNT sum; - int i; - - sum = 0L; - for (i = 0; i < words; i++, s_addr += 2) { - sum += AscReadLramWord(iop_base, s_addr); - } - return (sum); -} - -static void -AscMemWordSetLram(PortAddr iop_base, ushort s_addr, ushort set_wval, int words) -{ - int i; - - AscSetChipLramAddr(iop_base, s_addr); - for (i = 0; i < words; i++) { - AscSetChipLramData(iop_base, set_wval); - } - return; -} - /* Microcode buffer is kept after initialization for error recovery. */ static unsigned char _adv_asc3550_buf[] = { 0x00, 0x00, 0x00, 0xf2, 0x00, 0xf0, 0x00, 0x16, 0x18, 0xe4, 0x00, 0xfc, @@ -10686,451 +6494,213 @@ static unsigned char _adv_asc38C1600_buf[] = { static unsigned short _adv_asc38C1600_size = sizeof(_adv_asc38C1600_buf); /* 0x1673 */ static ADV_DCNT _adv_asc38C1600_chksum = 0x0604EF77UL; /* Expanded little-endian checksum. */ -/* - * EEPROM Configuration. - * - * All drivers should use this structure to set the default EEPROM - * configuration. The BIOS now uses this structure when it is built. - * Additional structure information can be found in a_condor.h where - * the structure is defined. - * - * The *_Field_IsChar structs are needed to correct for endianness. - * These values are read from the board 16 bits at a time directly - * into the structs. Because some fields are char, the values will be - * in the wrong order. The *_Field_IsChar tells when to flip the - * bytes. Data read and written to PCI memory is automatically swapped - * on big-endian platforms so char fields read as words are actually being - * unswapped on big-endian platforms. - */ -static ADVEEP_3550_CONFIG Default_3550_EEPROM_Config __devinitdata = { - ADV_EEPROM_BIOS_ENABLE, /* cfg_lsw */ - 0x0000, /* cfg_msw */ - 0xFFFF, /* disc_enable */ - 0xFFFF, /* wdtr_able */ - 0xFFFF, /* sdtr_able */ - 0xFFFF, /* start_motor */ - 0xFFFF, /* tagqng_able */ - 0xFFFF, /* bios_scan */ - 0, /* scam_tolerant */ - 7, /* adapter_scsi_id */ - 0, /* bios_boot_delay */ - 3, /* scsi_reset_delay */ - 0, /* bios_id_lun */ - 0, /* termination */ - 0, /* reserved1 */ - 0xFFE7, /* bios_ctrl */ - 0xFFFF, /* ultra_able */ - 0, /* reserved2 */ - ASC_DEF_MAX_HOST_QNG, /* max_host_qng */ - ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */ - 0, /* dvc_cntl */ - 0, /* bug_fix */ - 0, /* serial_number_word1 */ - 0, /* serial_number_word2 */ - 0, /* serial_number_word3 */ - 0, /* check_sum */ - {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} - , /* oem_name[16] */ - 0, /* dvc_err_code */ - 0, /* adv_err_code */ - 0, /* adv_err_addr */ - 0, /* saved_dvc_err_code */ - 0, /* saved_adv_err_code */ - 0, /* saved_adv_err_addr */ - 0 /* num_of_err */ -}; +static void AscInitQLinkVar(ASC_DVC_VAR *asc_dvc) +{ + PortAddr iop_base; + int i; + ushort lram_addr; -static ADVEEP_3550_CONFIG ADVEEP_3550_Config_Field_IsChar __devinitdata = { - 0, /* cfg_lsw */ - 0, /* cfg_msw */ - 0, /* -disc_enable */ - 0, /* wdtr_able */ - 0, /* sdtr_able */ - 0, /* start_motor */ - 0, /* tagqng_able */ - 0, /* bios_scan */ - 0, /* scam_tolerant */ - 1, /* adapter_scsi_id */ - 1, /* bios_boot_delay */ - 1, /* scsi_reset_delay */ - 1, /* bios_id_lun */ - 1, /* termination */ - 1, /* reserved1 */ - 0, /* bios_ctrl */ - 0, /* ultra_able */ - 0, /* reserved2 */ - 1, /* max_host_qng */ - 1, /* max_dvc_qng */ - 0, /* dvc_cntl */ - 0, /* bug_fix */ - 0, /* serial_number_word1 */ - 0, /* serial_number_word2 */ - 0, /* serial_number_word3 */ - 0, /* check_sum */ - {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} - , /* oem_name[16] */ - 0, /* dvc_err_code */ - 0, /* adv_err_code */ - 0, /* adv_err_addr */ - 0, /* saved_dvc_err_code */ - 0, /* saved_adv_err_code */ - 0, /* saved_adv_err_addr */ - 0 /* num_of_err */ -}; + iop_base = asc_dvc->iop_base; + AscPutRiscVarFreeQHead(iop_base, 1); + AscPutRiscVarDoneQTail(iop_base, asc_dvc->max_total_qng); + AscPutVarFreeQHead(iop_base, 1); + AscPutVarDoneQTail(iop_base, asc_dvc->max_total_qng); + AscWriteLramByte(iop_base, ASCV_BUSY_QHEAD_B, + (uchar)((int)asc_dvc->max_total_qng + 1)); + AscWriteLramByte(iop_base, ASCV_DISC1_QHEAD_B, + (uchar)((int)asc_dvc->max_total_qng + 2)); + AscWriteLramByte(iop_base, (ushort)ASCV_TOTAL_READY_Q_B, + asc_dvc->max_total_qng); + AscWriteLramWord(iop_base, ASCV_ASCDVC_ERR_CODE_W, 0); + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, 0); + AscWriteLramByte(iop_base, ASCV_SCSIBUSY_B, 0); + AscWriteLramByte(iop_base, ASCV_WTM_FLAG_B, 0); + AscPutQDoneInProgress(iop_base, 0); + lram_addr = ASC_QADR_BEG; + for (i = 0; i < 32; i++, lram_addr += 2) { + AscWriteLramWord(iop_base, lram_addr, 0); + } +} -static ADVEEP_38C0800_CONFIG Default_38C0800_EEPROM_Config __devinitdata = { - ADV_EEPROM_BIOS_ENABLE, /* 00 cfg_lsw */ - 0x0000, /* 01 cfg_msw */ - 0xFFFF, /* 02 disc_enable */ - 0xFFFF, /* 03 wdtr_able */ - 0x4444, /* 04 sdtr_speed1 */ - 0xFFFF, /* 05 start_motor */ - 0xFFFF, /* 06 tagqng_able */ - 0xFFFF, /* 07 bios_scan */ - 0, /* 08 scam_tolerant */ - 7, /* 09 adapter_scsi_id */ - 0, /* bios_boot_delay */ - 3, /* 10 scsi_reset_delay */ - 0, /* bios_id_lun */ - 0, /* 11 termination_se */ - 0, /* termination_lvd */ - 0xFFE7, /* 12 bios_ctrl */ - 0x4444, /* 13 sdtr_speed2 */ - 0x4444, /* 14 sdtr_speed3 */ - ASC_DEF_MAX_HOST_QNG, /* 15 max_host_qng */ - ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */ - 0, /* 16 dvc_cntl */ - 0x4444, /* 17 sdtr_speed4 */ - 0, /* 18 serial_number_word1 */ - 0, /* 19 serial_number_word2 */ - 0, /* 20 serial_number_word3 */ - 0, /* 21 check_sum */ - {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} - , /* 22-29 oem_name[16] */ - 0, /* 30 dvc_err_code */ - 0, /* 31 adv_err_code */ - 0, /* 32 adv_err_addr */ - 0, /* 33 saved_dvc_err_code */ - 0, /* 34 saved_adv_err_code */ - 0, /* 35 saved_adv_err_addr */ - 0, /* 36 reserved */ - 0, /* 37 reserved */ - 0, /* 38 reserved */ - 0, /* 39 reserved */ - 0, /* 40 reserved */ - 0, /* 41 reserved */ - 0, /* 42 reserved */ - 0, /* 43 reserved */ - 0, /* 44 reserved */ - 0, /* 45 reserved */ - 0, /* 46 reserved */ - 0, /* 47 reserved */ - 0, /* 48 reserved */ - 0, /* 49 reserved */ - 0, /* 50 reserved */ - 0, /* 51 reserved */ - 0, /* 52 reserved */ - 0, /* 53 reserved */ - 0, /* 54 reserved */ - 0, /* 55 reserved */ - 0, /* 56 cisptr_lsw */ - 0, /* 57 cisprt_msw */ - PCI_VENDOR_ID_ASP, /* 58 subsysvid */ - PCI_DEVICE_ID_38C0800_REV1, /* 59 subsysid */ - 0, /* 60 reserved */ - 0, /* 61 reserved */ - 0, /* 62 reserved */ - 0 /* 63 reserved */ -}; +static ushort AscInitMicroCodeVar(ASC_DVC_VAR *asc_dvc) +{ + int i; + ushort warn_code; + PortAddr iop_base; + ASC_PADDR phy_addr; + ASC_DCNT phy_size; -static ADVEEP_38C0800_CONFIG ADVEEP_38C0800_Config_Field_IsChar __devinitdata = { - 0, /* 00 cfg_lsw */ - 0, /* 01 cfg_msw */ - 0, /* 02 disc_enable */ - 0, /* 03 wdtr_able */ - 0, /* 04 sdtr_speed1 */ - 0, /* 05 start_motor */ - 0, /* 06 tagqng_able */ - 0, /* 07 bios_scan */ - 0, /* 08 scam_tolerant */ - 1, /* 09 adapter_scsi_id */ - 1, /* bios_boot_delay */ - 1, /* 10 scsi_reset_delay */ - 1, /* bios_id_lun */ - 1, /* 11 termination_se */ - 1, /* termination_lvd */ - 0, /* 12 bios_ctrl */ - 0, /* 13 sdtr_speed2 */ - 0, /* 14 sdtr_speed3 */ - 1, /* 15 max_host_qng */ - 1, /* max_dvc_qng */ - 0, /* 16 dvc_cntl */ - 0, /* 17 sdtr_speed4 */ - 0, /* 18 serial_number_word1 */ - 0, /* 19 serial_number_word2 */ - 0, /* 20 serial_number_word3 */ - 0, /* 21 check_sum */ - {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} - , /* 22-29 oem_name[16] */ - 0, /* 30 dvc_err_code */ - 0, /* 31 adv_err_code */ - 0, /* 32 adv_err_addr */ - 0, /* 33 saved_dvc_err_code */ - 0, /* 34 saved_adv_err_code */ - 0, /* 35 saved_adv_err_addr */ - 0, /* 36 reserved */ - 0, /* 37 reserved */ - 0, /* 38 reserved */ - 0, /* 39 reserved */ - 0, /* 40 reserved */ - 0, /* 41 reserved */ - 0, /* 42 reserved */ - 0, /* 43 reserved */ - 0, /* 44 reserved */ - 0, /* 45 reserved */ - 0, /* 46 reserved */ - 0, /* 47 reserved */ - 0, /* 48 reserved */ - 0, /* 49 reserved */ - 0, /* 50 reserved */ - 0, /* 51 reserved */ - 0, /* 52 reserved */ - 0, /* 53 reserved */ - 0, /* 54 reserved */ - 0, /* 55 reserved */ - 0, /* 56 cisptr_lsw */ - 0, /* 57 cisprt_msw */ - 0, /* 58 subsysvid */ - 0, /* 59 subsysid */ - 0, /* 60 reserved */ - 0, /* 61 reserved */ - 0, /* 62 reserved */ - 0 /* 63 reserved */ -}; + iop_base = asc_dvc->iop_base; + warn_code = 0; + for (i = 0; i <= ASC_MAX_TID; i++) { + AscPutMCodeInitSDTRAtID(iop_base, i, + asc_dvc->cfg->sdtr_period_offset[i]); + } -static ADVEEP_38C1600_CONFIG Default_38C1600_EEPROM_Config __devinitdata = { - ADV_EEPROM_BIOS_ENABLE, /* 00 cfg_lsw */ - 0x0000, /* 01 cfg_msw */ - 0xFFFF, /* 02 disc_enable */ - 0xFFFF, /* 03 wdtr_able */ - 0x5555, /* 04 sdtr_speed1 */ - 0xFFFF, /* 05 start_motor */ - 0xFFFF, /* 06 tagqng_able */ - 0xFFFF, /* 07 bios_scan */ - 0, /* 08 scam_tolerant */ - 7, /* 09 adapter_scsi_id */ - 0, /* bios_boot_delay */ - 3, /* 10 scsi_reset_delay */ - 0, /* bios_id_lun */ - 0, /* 11 termination_se */ - 0, /* termination_lvd */ - 0xFFE7, /* 12 bios_ctrl */ - 0x5555, /* 13 sdtr_speed2 */ - 0x5555, /* 14 sdtr_speed3 */ - ASC_DEF_MAX_HOST_QNG, /* 15 max_host_qng */ - ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */ - 0, /* 16 dvc_cntl */ - 0x5555, /* 17 sdtr_speed4 */ - 0, /* 18 serial_number_word1 */ - 0, /* 19 serial_number_word2 */ - 0, /* 20 serial_number_word3 */ - 0, /* 21 check_sum */ - {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} - , /* 22-29 oem_name[16] */ - 0, /* 30 dvc_err_code */ - 0, /* 31 adv_err_code */ - 0, /* 32 adv_err_addr */ - 0, /* 33 saved_dvc_err_code */ - 0, /* 34 saved_adv_err_code */ - 0, /* 35 saved_adv_err_addr */ - 0, /* 36 reserved */ - 0, /* 37 reserved */ - 0, /* 38 reserved */ - 0, /* 39 reserved */ - 0, /* 40 reserved */ - 0, /* 41 reserved */ - 0, /* 42 reserved */ - 0, /* 43 reserved */ - 0, /* 44 reserved */ - 0, /* 45 reserved */ - 0, /* 46 reserved */ - 0, /* 47 reserved */ - 0, /* 48 reserved */ - 0, /* 49 reserved */ - 0, /* 50 reserved */ - 0, /* 51 reserved */ - 0, /* 52 reserved */ - 0, /* 53 reserved */ - 0, /* 54 reserved */ - 0, /* 55 reserved */ - 0, /* 56 cisptr_lsw */ - 0, /* 57 cisprt_msw */ - PCI_VENDOR_ID_ASP, /* 58 subsysvid */ - PCI_DEVICE_ID_38C1600_REV1, /* 59 subsysid */ - 0, /* 60 reserved */ - 0, /* 61 reserved */ - 0, /* 62 reserved */ - 0 /* 63 reserved */ -}; + AscInitQLinkVar(asc_dvc); + AscWriteLramByte(iop_base, ASCV_DISC_ENABLE_B, + asc_dvc->cfg->disc_enable); + AscWriteLramByte(iop_base, ASCV_HOSTSCSI_ID_B, + ASC_TID_TO_TARGET_ID(asc_dvc->cfg->chip_scsi_id)); -static ADVEEP_38C1600_CONFIG ADVEEP_38C1600_Config_Field_IsChar __devinitdata = { - 0, /* 00 cfg_lsw */ - 0, /* 01 cfg_msw */ - 0, /* 02 disc_enable */ - 0, /* 03 wdtr_able */ - 0, /* 04 sdtr_speed1 */ - 0, /* 05 start_motor */ - 0, /* 06 tagqng_able */ - 0, /* 07 bios_scan */ - 0, /* 08 scam_tolerant */ - 1, /* 09 adapter_scsi_id */ - 1, /* bios_boot_delay */ - 1, /* 10 scsi_reset_delay */ - 1, /* bios_id_lun */ - 1, /* 11 termination_se */ - 1, /* termination_lvd */ - 0, /* 12 bios_ctrl */ - 0, /* 13 sdtr_speed2 */ - 0, /* 14 sdtr_speed3 */ - 1, /* 15 max_host_qng */ - 1, /* max_dvc_qng */ - 0, /* 16 dvc_cntl */ - 0, /* 17 sdtr_speed4 */ - 0, /* 18 serial_number_word1 */ - 0, /* 19 serial_number_word2 */ - 0, /* 20 serial_number_word3 */ - 0, /* 21 check_sum */ - {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} - , /* 22-29 oem_name[16] */ - 0, /* 30 dvc_err_code */ - 0, /* 31 adv_err_code */ - 0, /* 32 adv_err_addr */ - 0, /* 33 saved_dvc_err_code */ - 0, /* 34 saved_adv_err_code */ - 0, /* 35 saved_adv_err_addr */ - 0, /* 36 reserved */ - 0, /* 37 reserved */ - 0, /* 38 reserved */ - 0, /* 39 reserved */ - 0, /* 40 reserved */ - 0, /* 41 reserved */ - 0, /* 42 reserved */ - 0, /* 43 reserved */ - 0, /* 44 reserved */ - 0, /* 45 reserved */ - 0, /* 46 reserved */ - 0, /* 47 reserved */ - 0, /* 48 reserved */ - 0, /* 49 reserved */ - 0, /* 50 reserved */ - 0, /* 51 reserved */ - 0, /* 52 reserved */ - 0, /* 53 reserved */ - 0, /* 54 reserved */ - 0, /* 55 reserved */ - 0, /* 56 cisptr_lsw */ - 0, /* 57 cisprt_msw */ - 0, /* 58 subsysvid */ - 0, /* 59 subsysid */ - 0, /* 60 reserved */ - 0, /* 61 reserved */ - 0, /* 62 reserved */ - 0 /* 63 reserved */ -}; + /* Align overrun buffer on an 8 byte boundary. */ + phy_addr = virt_to_bus(asc_dvc->cfg->overrun_buf); + phy_addr = cpu_to_le32((phy_addr + 7) & ~0x7); + AscMemDWordCopyPtrToLram(iop_base, ASCV_OVERRUN_PADDR_D, + (uchar *)&phy_addr, 1); + phy_size = cpu_to_le32(ASC_OVERRUN_BSIZE - 8); + AscMemDWordCopyPtrToLram(iop_base, ASCV_OVERRUN_BSIZE_D, + (uchar *)&phy_size, 1); + + asc_dvc->cfg->mcode_date = + AscReadLramWord(iop_base, (ushort)ASCV_MC_DATE_W); + asc_dvc->cfg->mcode_version = + AscReadLramWord(iop_base, (ushort)ASCV_MC_VER_W); + + AscSetPCAddr(iop_base, ASC_MCODE_START_ADDR); + if (AscGetPCAddr(iop_base) != ASC_MCODE_START_ADDR) { + asc_dvc->err_code |= ASC_IERR_SET_PC_ADDR; + return warn_code; + } + if (AscStartChip(iop_base) != 1) { + asc_dvc->err_code |= ASC_IERR_START_STOP_CHIP; + return warn_code; + } + + return warn_code; +} + +static ushort AscInitAsc1000Driver(ASC_DVC_VAR *asc_dvc) +{ + ushort warn_code; + PortAddr iop_base; + + iop_base = asc_dvc->iop_base; + warn_code = 0; + if ((asc_dvc->dvc_cntl & ASC_CNTL_RESET_SCSI) && + !(asc_dvc->init_state & ASC_INIT_RESET_SCSI_DONE)) { + AscResetChipAndScsiBus(asc_dvc); + mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ + } + asc_dvc->init_state |= ASC_INIT_STATE_BEG_LOAD_MC; + if (asc_dvc->err_code != 0) + return UW_ERR; + if (!AscFindSignature(asc_dvc->iop_base)) { + asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; + return warn_code; + } + AscDisableInterrupt(iop_base); + warn_code |= AscInitLram(asc_dvc); + if (asc_dvc->err_code != 0) + return UW_ERR; + ASC_DBG1(1, "AscInitAsc1000Driver: _asc_mcode_chksum 0x%lx\n", + (ulong)_asc_mcode_chksum); + if (AscLoadMicroCode(iop_base, 0, _asc_mcode_buf, + _asc_mcode_size) != _asc_mcode_chksum) { + asc_dvc->err_code |= ASC_IERR_MCODE_CHKSUM; + return warn_code; + } + warn_code |= AscInitMicroCodeVar(asc_dvc); + asc_dvc->init_state |= ASC_INIT_STATE_END_LOAD_MC; + AscEnableInterrupt(iop_base); + return warn_code; +} -#ifdef CONFIG_PCI /* - * Initialize the ADV_DVC_VAR structure. + * Load the Microcode * - * On failure set the ADV_DVC_VAR field 'err_code' and return ADV_ERROR. + * Write the microcode image to RISC memory starting at address 0. * - * For a non-fatal error return a warning code. If there are no warnings - * then 0 is returned. + * The microcode is stored compressed in the following format: + * + * 254 word (508 byte) table indexed by byte code followed + * by the following byte codes: + * + * 1-Byte Code: + * 00: Emit word 0 in table. + * 01: Emit word 1 in table. + * . + * FD: Emit word 253 in table. + * + * Multi-Byte Code: + * FE WW WW: (3 byte code) Word to emit is the next word WW WW. + * FF BB WW WW: (4 byte code) Emit BB count times next word WW WW. + * + * Returns 0 or an error if the checksum doesn't match */ -static int __devinit -AdvInitGetConfig(struct pci_dev *pdev, asc_board_t *boardp) +static int AdvLoadMicrocode(AdvPortAddr iop_base, unsigned char *buf, int size, + int memsize, int chksum) { - ADV_DVC_VAR *asc_dvc = &boardp->dvc_var.adv_dvc_var; - unsigned short warn_code = 0; - AdvPortAddr iop_base = asc_dvc->iop_base; - u16 cmd; - int status; + int i, j, end, len = 0; + ADV_DCNT sum; - asc_dvc->err_code = 0; + AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0); - /* - * Save the state of the PCI Configuration Command Register - * "Parity Error Response Control" Bit. If the bit is clear (0), - * in AdvInitAsc3550/38C0800Driver() tell the microcode to ignore - * DMA parity errors. - */ - asc_dvc->cfg->control_flag = 0; - pci_read_config_word(pdev, PCI_COMMAND, &cmd); - if ((cmd & PCI_COMMAND_PARITY) == 0) - asc_dvc->cfg->control_flag |= CONTROL_FLAG_IGNORE_PERR; + for (i = 253 * 2; i < size; i++) { + if (buf[i] == 0xff) { + unsigned short word = (buf[i + 3] << 8) | buf[i + 2]; + for (j = 0; j < buf[i + 1]; j++) { + AdvWriteWordAutoIncLram(iop_base, word); + len += 2; + } + i += 3; + } else if (buf[i] == 0xfe) { + unsigned short word = (buf[i + 2] << 8) | buf[i + 1]; + AdvWriteWordAutoIncLram(iop_base, word); + i += 2; + len += 2; + } else { + unsigned char off = buf[i] * 2; + unsigned short word = (buf[off + 1] << 8) | buf[off]; + AdvWriteWordAutoIncLram(iop_base, word); + len += 2; + } + } - asc_dvc->cfg->lib_version = (ADV_LIB_VERSION_MAJOR << 8) | - ADV_LIB_VERSION_MINOR; - asc_dvc->cfg->chip_version = - AdvGetChipVersion(iop_base, asc_dvc->bus_type); + end = len; - ASC_DBG2(1, "AdvInitGetConfig: iopb_chip_id_1: 0x%x 0x%x\n", - (ushort)AdvReadByteRegister(iop_base, IOPB_CHIP_ID_1), - (ushort)ADV_CHIP_ID_BYTE); + while (len < memsize) { + AdvWriteWordAutoIncLram(iop_base, 0); + len += 2; + } - ASC_DBG2(1, "AdvInitGetConfig: iopw_chip_id_0: 0x%x 0x%x\n", - (ushort)AdvReadWordRegister(iop_base, IOPW_CHIP_ID_0), - (ushort)ADV_CHIP_ID_WORD); + /* Verify the microcode checksum. */ + sum = 0; + AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0); - /* - * Reset the chip to start and allow register writes. - */ - if (AdvFindSignature(iop_base) == 0) { - asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; - return ADV_ERROR; - } else { - /* - * The caller must set 'chip_type' to a valid setting. - */ - if (asc_dvc->chip_type != ADV_CHIP_ASC3550 && - asc_dvc->chip_type != ADV_CHIP_ASC38C0800 && - asc_dvc->chip_type != ADV_CHIP_ASC38C1600) { - asc_dvc->err_code |= ASC_IERR_BAD_CHIPTYPE; - return ADV_ERROR; - } + for (len = 0; len < end; len += 2) { + sum += AdvReadWordAutoIncLram(iop_base); + } - /* - * Reset Chip. - */ - AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, - ADV_CTRL_REG_CMD_RESET); - mdelay(100); - AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, - ADV_CTRL_REG_CMD_WR_IO_REG); + if (sum != chksum) + return ASC_IERR_MCODE_CHKSUM; - if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { - status = AdvInitFrom38C1600EEP(asc_dvc); - } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { - status = AdvInitFrom38C0800EEP(asc_dvc); - } else { - status = AdvInitFrom3550EEP(asc_dvc); - } - warn_code |= status; - } + return 0; +} - if (warn_code != 0) { - ASC_PRINT2("AdvInitGetConfig: board %d: warning: 0x%x\n", - boardp->id, warn_code); - } +/* + * DvcGetPhyAddr() + * + * Return the physical address of 'vaddr' and set '*lenp' to the + * number of physically contiguous bytes that follow 'vaddr'. + * 'flag' indicates the type of structure whose physical address + * is being translated. + * + * Note: Because Linux currently doesn't page the kernel and all + * kernel buffers are physically contiguous, leave '*lenp' unchanged. + */ +ADV_PADDR +DvcGetPhyAddr(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq, + uchar *vaddr, ADV_SDCNT *lenp, int flag) +{ + ADV_PADDR paddr = virt_to_bus(vaddr); - if (asc_dvc->err_code) { - ASC_PRINT2("AdvInitGetConfig: board %d error: err_code 0x%x\n", - boardp->id, asc_dvc->err_code); - } + ASC_DBG4(4, "DvcGetPhyAddr: vaddr 0x%p, lenp 0x%p *lenp %lu, paddr 0x%lx\n", + vaddr, lenp, (ulong)*((ulong *)lenp), (ulong)paddr); - return asc_dvc->err_code; + return paddr; } -#endif static void AdvBuildCarrierFreelist(struct adv_dvc_var *asc_dvc) { @@ -11183,75 +6753,117 @@ static void AdvBuildCarrierFreelist(struct adv_dvc_var *asc_dvc) } /* - * Load the Microcode - * - * Write the microcode image to RISC memory starting at address 0. - * - * The microcode is stored compressed in the following format: - * - * 254 word (508 byte) table indexed by byte code followed - * by the following byte codes: + * Send an idle command to the chip and wait for completion. * - * 1-Byte Code: - * 00: Emit word 0 in table. - * 01: Emit word 1 in table. - * . - * FD: Emit word 253 in table. + * Command completion is polled for once per microsecond. * - * Multi-Byte Code: - * FE WW WW: (3 byte code) Word to emit is the next word WW WW. - * FF BB WW WW: (4 byte code) Emit BB count times next word WW WW. + * The function can be called from anywhere including an interrupt handler. + * But the function is not re-entrant, so it uses the DvcEnter/LeaveCritical() + * functions to prevent reentrancy. * - * Returns 0 or an error if the checksum doesn't match + * Return Values: + * ADV_TRUE - command completed successfully + * ADV_FALSE - command failed + * ADV_ERROR - command timed out */ -static int AdvLoadMicrocode(AdvPortAddr iop_base, unsigned char *buf, int size, - int memsize, int chksum) +static int +AdvSendIdleCmd(ADV_DVC_VAR *asc_dvc, + ushort idle_cmd, ADV_DCNT idle_cmd_parameter) { - int i, j, end, len = 0; - ADV_DCNT sum; + int result; + ADV_DCNT i, j; + AdvPortAddr iop_base; - AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0); + iop_base = asc_dvc->iop_base; - for (i = 253 * 2; i < size; i++) { - if (buf[i] == 0xff) { - unsigned short word = (buf[i + 3] << 8) | buf[i + 2]; - for (j = 0; j < buf[i + 1]; j++) { - AdvWriteWordAutoIncLram(iop_base, word); - len += 2; - } - i += 3; - } else if (buf[i] == 0xfe) { - unsigned short word = (buf[i + 2] << 8) | buf[i + 1]; - AdvWriteWordAutoIncLram(iop_base, word); - i += 2; - len += 2; - } else { - unsigned char off = buf[i] * 2; - unsigned short word = (buf[off + 1] << 8) | buf[off]; - AdvWriteWordAutoIncLram(iop_base, word); - len += 2; + /* + * Clear the idle command status which is set by the microcode + * to a non-zero value to indicate when the command is completed. + * The non-zero result is one of the IDLE_CMD_STATUS_* values + */ + AdvWriteWordLram(iop_base, ASC_MC_IDLE_CMD_STATUS, (ushort)0); + + /* + * Write the idle command value after the idle command parameter + * has been written to avoid a race condition. If the order is not + * followed, the microcode may process the idle command before the + * parameters have been written to LRAM. + */ + AdvWriteDWordLramNoSwap(iop_base, ASC_MC_IDLE_CMD_PARAMETER, + cpu_to_le32(idle_cmd_parameter)); + AdvWriteWordLram(iop_base, ASC_MC_IDLE_CMD, idle_cmd); + + /* + * Tickle the RISC to tell it to process the idle command. + */ + AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_B); + if (asc_dvc->chip_type == ADV_CHIP_ASC3550) { + /* + * Clear the tickle value. In the ASC-3550 the RISC flag + * command 'clr_tickle_b' does not work unless the host + * value is cleared. + */ + AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_NOP); + } + + /* Wait for up to 100 millisecond for the idle command to timeout. */ + for (i = 0; i < SCSI_WAIT_100_MSEC; i++) { + /* Poll once each microsecond for command completion. */ + for (j = 0; j < SCSI_US_PER_MSEC; j++) { + AdvReadWordLram(iop_base, ASC_MC_IDLE_CMD_STATUS, + result); + if (result != 0) + return result; + udelay(1); } } - end = len; + BUG(); /* The idle command should never timeout. */ + return ADV_ERROR; +} - while (len < memsize) { - AdvWriteWordAutoIncLram(iop_base, 0); - len += 2; +/* + * Reset SCSI Bus and purge all outstanding requests. + * + * Return Value: + * ADV_TRUE(1) - All requests are purged and SCSI Bus is reset. + * ADV_FALSE(0) - Microcode command failed. + * ADV_ERROR(-1) - Microcode command timed-out. Microcode or IC + * may be hung which requires driver recovery. + */ +static int AdvResetSB(ADV_DVC_VAR *asc_dvc) +{ + int status; + + /* + * Send the SCSI Bus Reset idle start idle command which asserts + * the SCSI Bus Reset signal. + */ + status = AdvSendIdleCmd(asc_dvc, (ushort)IDLE_CMD_SCSI_RESET_START, 0L); + if (status != ADV_TRUE) { + return status; } - /* Verify the microcode checksum. */ - sum = 0; - AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0); + /* + * Delay for the specified SCSI Bus Reset hold time. + * + * The hold time delay is done on the host because the RISC has no + * microsecond accurate timer. + */ + udelay(ASC_SCSI_RESET_HOLD_TIME_US); - for (len = 0; len < end; len += 2) { - sum += AdvReadWordAutoIncLram(iop_base); + /* + * Send the SCSI Bus Reset end idle command which de-asserts + * the SCSI Bus Reset signal and purges any pending requests. + */ + status = AdvSendIdleCmd(asc_dvc, (ushort)IDLE_CMD_SCSI_RESET_END, 0L); + if (status != ADV_TRUE) { + return status; } - if (sum != chksum) - return ASC_IERR_MCODE_CHKSUM; + mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ - return 0; + return status; } /* @@ -12661,6 +8273,4917 @@ static int AdvInitAsc38C1600Driver(ADV_DVC_VAR *asc_dvc) } /* + * Reset chip and SCSI Bus. + * + * Return Value: + * ADV_TRUE(1) - Chip re-initialization and SCSI Bus Reset successful. + * ADV_FALSE(0) - Chip re-initialization and SCSI Bus Reset failure. + */ +static int AdvResetChipAndSB(ADV_DVC_VAR *asc_dvc) +{ + int status; + ushort wdtr_able, sdtr_able, tagqng_able; + ushort ppr_able = 0; + uchar tid, max_cmd[ADV_MAX_TID + 1]; + AdvPortAddr iop_base; + ushort bios_sig; + + iop_base = asc_dvc->iop_base; + + /* + * Save current per TID negotiated values. + */ + AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able); + AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able); + if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { + AdvReadWordLram(iop_base, ASC_MC_PPR_ABLE, ppr_able); + } + AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able); + for (tid = 0; tid <= ADV_MAX_TID; tid++) { + AdvReadByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + tid, + max_cmd[tid]); + } + + /* + * Force the AdvInitAsc3550/38C0800Driver() function to + * perform a SCSI Bus Reset by clearing the BIOS signature word. + * The initialization functions assumes a SCSI Bus Reset is not + * needed if the BIOS signature word is present. + */ + AdvReadWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, bios_sig); + AdvWriteWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, 0); + + /* + * Stop chip and reset it. + */ + AdvWriteWordRegister(iop_base, IOPW_RISC_CSR, ADV_RISC_CSR_STOP); + AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, ADV_CTRL_REG_CMD_RESET); + mdelay(100); + AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, + ADV_CTRL_REG_CMD_WR_IO_REG); + + /* + * Reset Adv Library error code, if any, and try + * re-initializing the chip. + */ + asc_dvc->err_code = 0; + if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { + status = AdvInitAsc38C1600Driver(asc_dvc); + } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { + status = AdvInitAsc38C0800Driver(asc_dvc); + } else { + status = AdvInitAsc3550Driver(asc_dvc); + } + + /* Translate initialization return value to status value. */ + if (status == 0) { + status = ADV_TRUE; + } else { + status = ADV_FALSE; + } + + /* + * Restore the BIOS signature word. + */ + AdvWriteWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, bios_sig); + + /* + * Restore per TID negotiated values. + */ + AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able); + AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able); + if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { + AdvWriteWordLram(iop_base, ASC_MC_PPR_ABLE, ppr_able); + } + AdvWriteWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able); + for (tid = 0; tid <= ADV_MAX_TID; tid++) { + AdvWriteByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + tid, + max_cmd[tid]); + } + + return status; +} + +/* + * adv_async_callback() - Adv Library asynchronous event callback function. + */ +static void adv_async_callback(ADV_DVC_VAR *adv_dvc_varp, uchar code) +{ + switch (code) { + case ADV_ASYNC_SCSI_BUS_RESET_DET: + /* + * The firmware detected a SCSI Bus reset. + */ + ASC_DBG(0, + "adv_async_callback: ADV_ASYNC_SCSI_BUS_RESET_DET\n"); + break; + + case ADV_ASYNC_RDMA_FAILURE: + /* + * Handle RDMA failure by resetting the SCSI Bus and + * possibly the chip if it is unresponsive. Log the error + * with a unique code. + */ + ASC_DBG(0, "adv_async_callback: ADV_ASYNC_RDMA_FAILURE\n"); + AdvResetChipAndSB(adv_dvc_varp); + break; + + case ADV_HOST_SCSI_BUS_RESET: + /* + * Host generated SCSI bus reset occurred. + */ + ASC_DBG(0, "adv_async_callback: ADV_HOST_SCSI_BUS_RESET\n"); + break; + + default: + ASC_DBG1(0, "DvcAsyncCallBack: unknown code 0x%x\n", code); + break; + } +} + +/* + * adv_isr_callback() - Second Level Interrupt Handler called by AdvISR(). + * + * Callback function for the Wide SCSI Adv Library. + */ +static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) +{ + asc_board_t *boardp; + adv_req_t *reqp; + adv_sgblk_t *sgblkp; + struct scsi_cmnd *scp; + struct Scsi_Host *shost; + ADV_DCNT resid_cnt; + + ASC_DBG2(1, "adv_isr_callback: adv_dvc_varp 0x%lx, scsiqp 0x%lx\n", + (ulong)adv_dvc_varp, (ulong)scsiqp); + ASC_DBG_PRT_ADV_SCSI_REQ_Q(2, scsiqp); + + /* + * Get the adv_req_t structure for the command that has been + * completed. The adv_req_t structure actually contains the + * completed ADV_SCSI_REQ_Q structure. + */ + reqp = (adv_req_t *)ADV_U32_TO_VADDR(scsiqp->srb_ptr); + ASC_DBG1(1, "adv_isr_callback: reqp 0x%lx\n", (ulong)reqp); + if (reqp == NULL) { + ASC_PRINT("adv_isr_callback: reqp is NULL\n"); + return; + } + + /* + * Get the struct scsi_cmnd structure and Scsi_Host structure for the + * command that has been completed. + * + * Note: The adv_req_t request structure and adv_sgblk_t structure, + * if any, are dropped, because a board structure pointer can not be + * determined. + */ + scp = reqp->cmndp; + ASC_DBG1(1, "adv_isr_callback: scp 0x%lx\n", (ulong)scp); + if (scp == NULL) { + ASC_PRINT + ("adv_isr_callback: scp is NULL; adv_req_t dropped.\n"); + return; + } + ASC_DBG_PRT_CDB(2, scp->cmnd, scp->cmd_len); + + shost = scp->device->host; + ASC_STATS(shost, callback); + ASC_DBG1(1, "adv_isr_callback: shost 0x%lx\n", (ulong)shost); + + boardp = ASC_BOARDP(shost); + BUG_ON(adv_dvc_varp != &boardp->dvc_var.adv_dvc_var); + + /* + * 'done_status' contains the command's ending status. + */ + switch (scsiqp->done_status) { + case QD_NO_ERROR: + ASC_DBG(2, "adv_isr_callback: QD_NO_ERROR\n"); + scp->result = 0; + + /* + * Check for an underrun condition. + * + * If there was no error and an underrun condition, then + * then return the number of underrun bytes. + */ + resid_cnt = le32_to_cpu(scsiqp->data_cnt); + if (scp->request_bufflen != 0 && resid_cnt != 0 && + resid_cnt <= scp->request_bufflen) { + ASC_DBG1(1, + "adv_isr_callback: underrun condition %lu bytes\n", + (ulong)resid_cnt); + scp->resid = resid_cnt; + } + break; + + case QD_WITH_ERROR: + ASC_DBG(2, "adv_isr_callback: QD_WITH_ERROR\n"); + switch (scsiqp->host_status) { + case QHSTA_NO_ERROR: + if (scsiqp->scsi_status == SAM_STAT_CHECK_CONDITION) { + ASC_DBG(2, + "adv_isr_callback: SAM_STAT_CHECK_CONDITION\n"); + ASC_DBG_PRT_SENSE(2, scp->sense_buffer, + sizeof(scp->sense_buffer)); + /* + * Note: The 'status_byte()' macro used by + * target drivers defined in scsi.h shifts the + * status byte returned by host drivers right + * by 1 bit. This is why target drivers also + * use right shifted status byte definitions. + * For instance target drivers use + * CHECK_CONDITION, defined to 0x1, instead of + * the SCSI defined check condition value of + * 0x2. Host drivers are supposed to return + * the status byte as it is defined by SCSI. + */ + scp->result = DRIVER_BYTE(DRIVER_SENSE) | + STATUS_BYTE(scsiqp->scsi_status); + } else { + scp->result = STATUS_BYTE(scsiqp->scsi_status); + } + break; + + default: + /* Some other QHSTA error occurred. */ + ASC_DBG1(1, "adv_isr_callback: host_status 0x%x\n", + scsiqp->host_status); + scp->result = HOST_BYTE(DID_BAD_TARGET); + break; + } + break; + + case QD_ABORTED_BY_HOST: + ASC_DBG(1, "adv_isr_callback: QD_ABORTED_BY_HOST\n"); + scp->result = + HOST_BYTE(DID_ABORT) | STATUS_BYTE(scsiqp->scsi_status); + break; + + default: + ASC_DBG1(1, "adv_isr_callback: done_status 0x%x\n", + scsiqp->done_status); + scp->result = + HOST_BYTE(DID_ERROR) | STATUS_BYTE(scsiqp->scsi_status); + break; + } + + /* + * If the 'init_tidmask' bit isn't already set for the target and the + * current request finished normally, then set the bit for the target + * to indicate that a device is present. + */ + if ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(scp->device->id)) == 0 && + scsiqp->done_status == QD_NO_ERROR && + scsiqp->host_status == QHSTA_NO_ERROR) { + boardp->init_tidmask |= ADV_TID_TO_TIDMASK(scp->device->id); + } + + asc_scsi_done(scp); + + /* + * Free all 'adv_sgblk_t' structures allocated for the request. + */ + while ((sgblkp = reqp->sgblkp) != NULL) { + /* Remove 'sgblkp' from the request list. */ + reqp->sgblkp = sgblkp->next_sgblkp; + + /* Add 'sgblkp' to the board free list. */ + sgblkp->next_sgblkp = boardp->adv_sgblkp; + boardp->adv_sgblkp = sgblkp; + } + + /* + * Free the adv_req_t structure used with the command by adding + * it back to the board free list. + */ + reqp->next_reqp = boardp->adv_reqp; + boardp->adv_reqp = reqp; + + ASC_DBG(1, "adv_isr_callback: done\n"); + + return; +} + +/* + * Adv Library Interrupt Service Routine + * + * This function is called by a driver's interrupt service routine. + * The function disables and re-enables interrupts. + * + * When a microcode idle command is completed, the ADV_DVC_VAR + * 'idle_cmd_done' field is set to ADV_TRUE. + * + * Note: AdvISR() can be called when interrupts are disabled or even + * when there is no hardware interrupt condition present. It will + * always check for completed idle commands and microcode requests. + * This is an important feature that shouldn't be changed because it + * allows commands to be completed from polling mode loops. + * + * Return: + * ADV_TRUE(1) - interrupt was pending + * ADV_FALSE(0) - no interrupt was pending + */ +static int AdvISR(ADV_DVC_VAR *asc_dvc) +{ + AdvPortAddr iop_base; + uchar int_stat; + ushort target_bit; + ADV_CARR_T *free_carrp; + ADV_VADDR irq_next_vpa; + ADV_SCSI_REQ_Q *scsiq; + + iop_base = asc_dvc->iop_base; + + /* Reading the register clears the interrupt. */ + int_stat = AdvReadByteRegister(iop_base, IOPB_INTR_STATUS_REG); + + if ((int_stat & (ADV_INTR_STATUS_INTRA | ADV_INTR_STATUS_INTRB | + ADV_INTR_STATUS_INTRC)) == 0) { + return ADV_FALSE; + } + + /* + * Notify the driver of an asynchronous microcode condition by + * calling the adv_async_callback function. The function + * is passed the microcode ASC_MC_INTRB_CODE byte value. + */ + if (int_stat & ADV_INTR_STATUS_INTRB) { + uchar intrb_code; + + AdvReadByteLram(iop_base, ASC_MC_INTRB_CODE, intrb_code); + + if (asc_dvc->chip_type == ADV_CHIP_ASC3550 || + asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { + if (intrb_code == ADV_ASYNC_CARRIER_READY_FAILURE && + asc_dvc->carr_pending_cnt != 0) { + AdvWriteByteRegister(iop_base, IOPB_TICKLE, + ADV_TICKLE_A); + if (asc_dvc->chip_type == ADV_CHIP_ASC3550) { + AdvWriteByteRegister(iop_base, + IOPB_TICKLE, + ADV_TICKLE_NOP); + } + } + } + + adv_async_callback(asc_dvc, intrb_code); + } + + /* + * Check if the IRQ stopper carrier contains a completed request. + */ + while (((irq_next_vpa = + le32_to_cpu(asc_dvc->irq_sp->next_vpa)) & ASC_RQ_DONE) != 0) { + /* + * Get a pointer to the newly completed ADV_SCSI_REQ_Q structure. + * The RISC will have set 'areq_vpa' to a virtual address. + * + * The firmware will have copied the ASC_SCSI_REQ_Q.scsiq_ptr + * field to the carrier ADV_CARR_T.areq_vpa field. The conversion + * below complements the conversion of ASC_SCSI_REQ_Q.scsiq_ptr' + * in AdvExeScsiQueue(). + */ + scsiq = (ADV_SCSI_REQ_Q *) + ADV_U32_TO_VADDR(le32_to_cpu(asc_dvc->irq_sp->areq_vpa)); + + /* + * Request finished with good status and the queue was not + * DMAed to host memory by the firmware. Set all status fields + * to indicate good status. + */ + if ((irq_next_vpa & ASC_RQ_GOOD) != 0) { + scsiq->done_status = QD_NO_ERROR; + scsiq->host_status = scsiq->scsi_status = 0; + scsiq->data_cnt = 0L; + } + + /* + * Advance the stopper pointer to the next carrier + * ignoring the lower four bits. Free the previous + * stopper carrier. + */ + free_carrp = asc_dvc->irq_sp; + asc_dvc->irq_sp = (ADV_CARR_T *) + ADV_U32_TO_VADDR(ASC_GET_CARRP(irq_next_vpa)); + + free_carrp->next_vpa = + cpu_to_le32(ADV_VADDR_TO_U32(asc_dvc->carr_freelist)); + asc_dvc->carr_freelist = free_carrp; + asc_dvc->carr_pending_cnt--; + + target_bit = ADV_TID_TO_TIDMASK(scsiq->target_id); + + /* + * Clear request microcode control flag. + */ + scsiq->cntl = 0; + + /* + * Notify the driver of the completed request by passing + * the ADV_SCSI_REQ_Q pointer to its callback function. + */ + scsiq->a_flag |= ADV_SCSIQ_DONE; + adv_isr_callback(asc_dvc, scsiq); + /* + * Note: After the driver callback function is called, 'scsiq' + * can no longer be referenced. + * + * Fall through and continue processing other completed + * requests... + */ + } + return ADV_TRUE; +} + +static int AscSetLibErrorCode(ASC_DVC_VAR *asc_dvc, ushort err_code) +{ + if (asc_dvc->err_code == 0) { + asc_dvc->err_code = err_code; + AscWriteLramWord(asc_dvc->iop_base, ASCV_ASCDVC_ERR_CODE_W, + err_code); + } + return err_code; +} + +static void AscAckInterrupt(PortAddr iop_base) +{ + uchar host_flag; + uchar risc_flag; + ushort loop; + + loop = 0; + do { + risc_flag = AscReadLramByte(iop_base, ASCV_RISC_FLAG_B); + if (loop++ > 0x7FFF) { + break; + } + } while ((risc_flag & ASC_RISC_FLAG_GEN_INT) != 0); + host_flag = + AscReadLramByte(iop_base, + ASCV_HOST_FLAG_B) & (~ASC_HOST_FLAG_ACK_INT); + AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, + (uchar)(host_flag | ASC_HOST_FLAG_ACK_INT)); + AscSetChipStatus(iop_base, CIW_INT_ACK); + loop = 0; + while (AscGetChipStatus(iop_base) & CSW_INT_PENDING) { + AscSetChipStatus(iop_base, CIW_INT_ACK); + if (loop++ > 3) { + break; + } + } + AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, host_flag); + return; +} + +static uchar AscGetSynPeriodIndex(ASC_DVC_VAR *asc_dvc, uchar syn_time) +{ + uchar *period_table; + int max_index; + int min_index; + int i; + + period_table = asc_dvc->sdtr_period_tbl; + max_index = (int)asc_dvc->max_sdtr_index; + min_index = (int)asc_dvc->host_init_sdtr_index; + if ((syn_time <= period_table[max_index])) { + for (i = min_index; i < (max_index - 1); i++) { + if (syn_time <= period_table[i]) { + return (uchar)i; + } + } + return (uchar)max_index; + } else { + return (uchar)(max_index + 1); + } +} + +static uchar +AscMsgOutSDTR(ASC_DVC_VAR *asc_dvc, uchar sdtr_period, uchar sdtr_offset) +{ + EXT_MSG sdtr_buf; + uchar sdtr_period_index; + PortAddr iop_base; + + iop_base = asc_dvc->iop_base; + sdtr_buf.msg_type = EXTENDED_MESSAGE; + sdtr_buf.msg_len = MS_SDTR_LEN; + sdtr_buf.msg_req = EXTENDED_SDTR; + sdtr_buf.xfer_period = sdtr_period; + sdtr_offset &= ASC_SYN_MAX_OFFSET; + sdtr_buf.req_ack_offset = sdtr_offset; + sdtr_period_index = AscGetSynPeriodIndex(asc_dvc, sdtr_period); + if (sdtr_period_index <= asc_dvc->max_sdtr_index) { + AscMemWordCopyPtrToLram(iop_base, ASCV_MSGOUT_BEG, + (uchar *)&sdtr_buf, + sizeof(EXT_MSG) >> 1); + return ((sdtr_period_index << 4) | sdtr_offset); + } else { + sdtr_buf.req_ack_offset = 0; + AscMemWordCopyPtrToLram(iop_base, ASCV_MSGOUT_BEG, + (uchar *)&sdtr_buf, + sizeof(EXT_MSG) >> 1); + return 0; + } +} + +static uchar +AscCalSDTRData(ASC_DVC_VAR *asc_dvc, uchar sdtr_period, uchar syn_offset) +{ + uchar byte; + uchar sdtr_period_ix; + + sdtr_period_ix = AscGetSynPeriodIndex(asc_dvc, sdtr_period); + if (sdtr_period_ix > asc_dvc->max_sdtr_index) { + return 0xFF; + } + byte = (sdtr_period_ix << 4) | (syn_offset & ASC_SYN_MAX_OFFSET); + return byte; +} + +static int AscSetChipSynRegAtID(PortAddr iop_base, uchar id, uchar sdtr_data) +{ + ASC_SCSI_BIT_ID_TYPE org_id; + int i; + int sta = TRUE; + + AscSetBank(iop_base, 1); + org_id = AscReadChipDvcID(iop_base); + for (i = 0; i <= ASC_MAX_TID; i++) { + if (org_id == (0x01 << i)) + break; + } + org_id = (ASC_SCSI_BIT_ID_TYPE) i; + AscWriteChipDvcID(iop_base, id); + if (AscReadChipDvcID(iop_base) == (0x01 << id)) { + AscSetBank(iop_base, 0); + AscSetChipSyn(iop_base, sdtr_data); + if (AscGetChipSyn(iop_base) != sdtr_data) { + sta = FALSE; + } + } else { + sta = FALSE; + } + AscSetBank(iop_base, 1); + AscWriteChipDvcID(iop_base, org_id); + AscSetBank(iop_base, 0); + return (sta); +} + +static void AscSetChipSDTR(PortAddr iop_base, uchar sdtr_data, uchar tid_no) +{ + AscSetChipSynRegAtID(iop_base, tid_no, sdtr_data); + AscPutMCodeSDTRDoneAtID(iop_base, tid_no, sdtr_data); +} + +static int AscIsrChipHalted(ASC_DVC_VAR *asc_dvc) +{ + EXT_MSG ext_msg; + EXT_MSG out_msg; + ushort halt_q_addr; + int sdtr_accept; + ushort int_halt_code; + ASC_SCSI_BIT_ID_TYPE scsi_busy; + ASC_SCSI_BIT_ID_TYPE target_id; + PortAddr iop_base; + uchar tag_code; + uchar q_status; + uchar halt_qp; + uchar sdtr_data; + uchar target_ix; + uchar q_cntl, tid_no; + uchar cur_dvc_qng; + uchar asyn_sdtr; + uchar scsi_status; + asc_board_t *boardp; + + BUG_ON(!asc_dvc->drv_ptr); + boardp = asc_dvc->drv_ptr; + + iop_base = asc_dvc->iop_base; + int_halt_code = AscReadLramWord(iop_base, ASCV_HALTCODE_W); + + halt_qp = AscReadLramByte(iop_base, ASCV_CURCDB_B); + halt_q_addr = ASC_QNO_TO_QADDR(halt_qp); + target_ix = AscReadLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_TARGET_IX)); + q_cntl = AscReadLramByte(iop_base, + (ushort)(halt_q_addr + (ushort)ASC_SCSIQ_B_CNTL)); + tid_no = ASC_TIX_TO_TID(target_ix); + target_id = (uchar)ASC_TID_TO_TARGET_ID(tid_no); + if (asc_dvc->pci_fix_asyn_xfer & target_id) { + asyn_sdtr = ASYN_SDTR_DATA_FIX_PCI_REV_AB; + } else { + asyn_sdtr = 0; + } + if (int_halt_code == ASC_HALT_DISABLE_ASYN_USE_SYN_FIX) { + if (asc_dvc->pci_fix_asyn_xfer & target_id) { + AscSetChipSDTR(iop_base, 0, tid_no); + boardp->sdtr_data[tid_no] = 0; + } + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } else if (int_halt_code == ASC_HALT_ENABLE_ASYN_USE_SYN_FIX) { + if (asc_dvc->pci_fix_asyn_xfer & target_id) { + AscSetChipSDTR(iop_base, asyn_sdtr, tid_no); + boardp->sdtr_data[tid_no] = asyn_sdtr; + } + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } else if (int_halt_code == ASC_HALT_EXTMSG_IN) { + AscMemWordCopyPtrFromLram(iop_base, + ASCV_MSGIN_BEG, + (uchar *)&ext_msg, + sizeof(EXT_MSG) >> 1); + + if (ext_msg.msg_type == EXTENDED_MESSAGE && + ext_msg.msg_req == EXTENDED_SDTR && + ext_msg.msg_len == MS_SDTR_LEN) { + sdtr_accept = TRUE; + if ((ext_msg.req_ack_offset > ASC_SYN_MAX_OFFSET)) { + + sdtr_accept = FALSE; + ext_msg.req_ack_offset = ASC_SYN_MAX_OFFSET; + } + if ((ext_msg.xfer_period < + asc_dvc->sdtr_period_tbl[asc_dvc-> + host_init_sdtr_index]) + || (ext_msg.xfer_period > + asc_dvc->sdtr_period_tbl[asc_dvc-> + max_sdtr_index])) { + sdtr_accept = FALSE; + ext_msg.xfer_period = + asc_dvc->sdtr_period_tbl[asc_dvc-> + host_init_sdtr_index]; + } + if (sdtr_accept) { + sdtr_data = + AscCalSDTRData(asc_dvc, ext_msg.xfer_period, + ext_msg.req_ack_offset); + if ((sdtr_data == 0xFF)) { + + q_cntl |= QC_MSG_OUT; + asc_dvc->init_sdtr &= ~target_id; + asc_dvc->sdtr_done &= ~target_id; + AscSetChipSDTR(iop_base, asyn_sdtr, + tid_no); + boardp->sdtr_data[tid_no] = asyn_sdtr; + } + } + if (ext_msg.req_ack_offset == 0) { + + q_cntl &= ~QC_MSG_OUT; + asc_dvc->init_sdtr &= ~target_id; + asc_dvc->sdtr_done &= ~target_id; + AscSetChipSDTR(iop_base, asyn_sdtr, tid_no); + } else { + if (sdtr_accept && (q_cntl & QC_MSG_OUT)) { + + q_cntl &= ~QC_MSG_OUT; + asc_dvc->sdtr_done |= target_id; + asc_dvc->init_sdtr |= target_id; + asc_dvc->pci_fix_asyn_xfer &= + ~target_id; + sdtr_data = + AscCalSDTRData(asc_dvc, + ext_msg.xfer_period, + ext_msg. + req_ack_offset); + AscSetChipSDTR(iop_base, sdtr_data, + tid_no); + boardp->sdtr_data[tid_no] = sdtr_data; + } else { + + q_cntl |= QC_MSG_OUT; + AscMsgOutSDTR(asc_dvc, + ext_msg.xfer_period, + ext_msg.req_ack_offset); + asc_dvc->pci_fix_asyn_xfer &= + ~target_id; + sdtr_data = + AscCalSDTRData(asc_dvc, + ext_msg.xfer_period, + ext_msg. + req_ack_offset); + AscSetChipSDTR(iop_base, sdtr_data, + tid_no); + boardp->sdtr_data[tid_no] = sdtr_data; + asc_dvc->sdtr_done |= target_id; + asc_dvc->init_sdtr |= target_id; + } + } + + AscWriteLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_CNTL), + q_cntl); + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } else if (ext_msg.msg_type == EXTENDED_MESSAGE && + ext_msg.msg_req == EXTENDED_WDTR && + ext_msg.msg_len == MS_WDTR_LEN) { + + ext_msg.wdtr_width = 0; + AscMemWordCopyPtrToLram(iop_base, + ASCV_MSGOUT_BEG, + (uchar *)&ext_msg, + sizeof(EXT_MSG) >> 1); + q_cntl |= QC_MSG_OUT; + AscWriteLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_CNTL), + q_cntl); + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } else { + + ext_msg.msg_type = MESSAGE_REJECT; + AscMemWordCopyPtrToLram(iop_base, + ASCV_MSGOUT_BEG, + (uchar *)&ext_msg, + sizeof(EXT_MSG) >> 1); + q_cntl |= QC_MSG_OUT; + AscWriteLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_CNTL), + q_cntl); + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } + } else if (int_halt_code == ASC_HALT_CHK_CONDITION) { + + q_cntl |= QC_REQ_SENSE; + + if ((asc_dvc->init_sdtr & target_id) != 0) { + + asc_dvc->sdtr_done &= ~target_id; + + sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no); + q_cntl |= QC_MSG_OUT; + AscMsgOutSDTR(asc_dvc, + asc_dvc-> + sdtr_period_tbl[(sdtr_data >> 4) & + (uchar)(asc_dvc-> + max_sdtr_index - + 1)], + (uchar)(sdtr_data & (uchar) + ASC_SYN_MAX_OFFSET)); + } + + AscWriteLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_CNTL), q_cntl); + + tag_code = AscReadLramByte(iop_base, + (ushort)(halt_q_addr + (ushort) + ASC_SCSIQ_B_TAG_CODE)); + tag_code &= 0xDC; + if ((asc_dvc->pci_fix_asyn_xfer & target_id) + && !(asc_dvc->pci_fix_asyn_xfer_always & target_id) + ) { + + tag_code |= (ASC_TAG_FLAG_DISABLE_DISCONNECT + | ASC_TAG_FLAG_DISABLE_ASYN_USE_SYN_FIX); + + } + AscWriteLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_TAG_CODE), + tag_code); + + q_status = AscReadLramByte(iop_base, + (ushort)(halt_q_addr + (ushort) + ASC_SCSIQ_B_STATUS)); + q_status |= (QS_READY | QS_BUSY); + AscWriteLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_STATUS), + q_status); + + scsi_busy = AscReadLramByte(iop_base, (ushort)ASCV_SCSIBUSY_B); + scsi_busy &= ~target_id; + AscWriteLramByte(iop_base, (ushort)ASCV_SCSIBUSY_B, scsi_busy); + + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } else if (int_halt_code == ASC_HALT_SDTR_REJECTED) { + + AscMemWordCopyPtrFromLram(iop_base, + ASCV_MSGOUT_BEG, + (uchar *)&out_msg, + sizeof(EXT_MSG) >> 1); + + if ((out_msg.msg_type == EXTENDED_MESSAGE) && + (out_msg.msg_len == MS_SDTR_LEN) && + (out_msg.msg_req == EXTENDED_SDTR)) { + + asc_dvc->init_sdtr &= ~target_id; + asc_dvc->sdtr_done &= ~target_id; + AscSetChipSDTR(iop_base, asyn_sdtr, tid_no); + boardp->sdtr_data[tid_no] = asyn_sdtr; + } + q_cntl &= ~QC_MSG_OUT; + AscWriteLramByte(iop_base, + (ushort)(halt_q_addr + + (ushort)ASC_SCSIQ_B_CNTL), q_cntl); + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } else if (int_halt_code == ASC_HALT_SS_QUEUE_FULL) { + + scsi_status = AscReadLramByte(iop_base, + (ushort)((ushort)halt_q_addr + + (ushort) + ASC_SCSIQ_SCSI_STATUS)); + cur_dvc_qng = + AscReadLramByte(iop_base, + (ushort)((ushort)ASC_QADR_BEG + + (ushort)target_ix)); + if ((cur_dvc_qng > 0) && (asc_dvc->cur_dvc_qng[tid_no] > 0)) { + + scsi_busy = AscReadLramByte(iop_base, + (ushort)ASCV_SCSIBUSY_B); + scsi_busy |= target_id; + AscWriteLramByte(iop_base, + (ushort)ASCV_SCSIBUSY_B, scsi_busy); + asc_dvc->queue_full_or_busy |= target_id; + + if (scsi_status == SAM_STAT_TASK_SET_FULL) { + if (cur_dvc_qng > ASC_MIN_TAGGED_CMD) { + cur_dvc_qng -= 1; + asc_dvc->max_dvc_qng[tid_no] = + cur_dvc_qng; + + AscWriteLramByte(iop_base, + (ushort)((ushort) + ASCV_MAX_DVC_QNG_BEG + + (ushort) + tid_no), + cur_dvc_qng); + + /* + * Set the device queue depth to the + * number of active requests when the + * QUEUE FULL condition was encountered. + */ + boardp->queue_full |= target_id; + boardp->queue_full_cnt[tid_no] = + cur_dvc_qng; + } + } + } + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } +#if CC_VERY_LONG_SG_LIST + else if (int_halt_code == ASC_HALT_HOST_COPY_SG_LIST_TO_RISC) { + uchar q_no; + ushort q_addr; + uchar sg_wk_q_no; + uchar first_sg_wk_q_no; + ASC_SCSI_Q *scsiq; /* Ptr to driver request. */ + ASC_SG_HEAD *sg_head; /* Ptr to driver SG request. */ + ASC_SG_LIST_Q scsi_sg_q; /* Structure written to queue. */ + ushort sg_list_dwords; + ushort sg_entry_cnt; + uchar next_qp; + int i; + + q_no = AscReadLramByte(iop_base, (ushort)ASCV_REQ_SG_LIST_QP); + if (q_no == ASC_QLINK_END) + return 0; + + q_addr = ASC_QNO_TO_QADDR(q_no); + + /* + * Convert the request's SRB pointer to a host ASC_SCSI_REQ + * structure pointer using a macro provided by the driver. + * The ASC_SCSI_REQ pointer provides a pointer to the + * host ASC_SG_HEAD structure. + */ + /* Read request's SRB pointer. */ + scsiq = (ASC_SCSI_Q *) + ASC_SRB2SCSIQ(ASC_U32_TO_VADDR(AscReadLramDWord(iop_base, + (ushort) + (q_addr + + ASC_SCSIQ_D_SRBPTR)))); + + /* + * Get request's first and working SG queue. + */ + sg_wk_q_no = AscReadLramByte(iop_base, + (ushort)(q_addr + + ASC_SCSIQ_B_SG_WK_QP)); + + first_sg_wk_q_no = AscReadLramByte(iop_base, + (ushort)(q_addr + + ASC_SCSIQ_B_FIRST_SG_WK_QP)); + + /* + * Reset request's working SG queue back to the + * first SG queue. + */ + AscWriteLramByte(iop_base, + (ushort)(q_addr + + (ushort)ASC_SCSIQ_B_SG_WK_QP), + first_sg_wk_q_no); + + sg_head = scsiq->sg_head; + + /* + * Set sg_entry_cnt to the number of SG elements + * that will be completed on this interrupt. + * + * Note: The allocated SG queues contain ASC_MAX_SG_LIST - 1 + * SG elements. The data_cnt and data_addr fields which + * add 1 to the SG element capacity are not used when + * restarting SG handling after a halt. + */ + if (scsiq->remain_sg_entry_cnt > (ASC_MAX_SG_LIST - 1)) { + sg_entry_cnt = ASC_MAX_SG_LIST - 1; + + /* + * Keep track of remaining number of SG elements that + * will need to be handled on the next interrupt. + */ + scsiq->remain_sg_entry_cnt -= (ASC_MAX_SG_LIST - 1); + } else { + sg_entry_cnt = scsiq->remain_sg_entry_cnt; + scsiq->remain_sg_entry_cnt = 0; + } + + /* + * Copy SG elements into the list of allocated SG queues. + * + * Last index completed is saved in scsiq->next_sg_index. + */ + next_qp = first_sg_wk_q_no; + q_addr = ASC_QNO_TO_QADDR(next_qp); + scsi_sg_q.sg_head_qp = q_no; + scsi_sg_q.cntl = QCSG_SG_XFER_LIST; + for (i = 0; i < sg_head->queue_cnt; i++) { + scsi_sg_q.seq_no = i + 1; + if (sg_entry_cnt > ASC_SG_LIST_PER_Q) { + sg_list_dwords = (uchar)(ASC_SG_LIST_PER_Q * 2); + sg_entry_cnt -= ASC_SG_LIST_PER_Q; + /* + * After very first SG queue RISC FW uses next + * SG queue first element then checks sg_list_cnt + * against zero and then decrements, so set + * sg_list_cnt 1 less than number of SG elements + * in each SG queue. + */ + scsi_sg_q.sg_list_cnt = ASC_SG_LIST_PER_Q - 1; + scsi_sg_q.sg_cur_list_cnt = + ASC_SG_LIST_PER_Q - 1; + } else { + /* + * This is the last SG queue in the list of + * allocated SG queues. If there are more + * SG elements than will fit in the allocated + * queues, then set the QCSG_SG_XFER_MORE flag. + */ + if (scsiq->remain_sg_entry_cnt != 0) { + scsi_sg_q.cntl |= QCSG_SG_XFER_MORE; + } else { + scsi_sg_q.cntl |= QCSG_SG_XFER_END; + } + /* equals sg_entry_cnt * 2 */ + sg_list_dwords = sg_entry_cnt << 1; + scsi_sg_q.sg_list_cnt = sg_entry_cnt - 1; + scsi_sg_q.sg_cur_list_cnt = sg_entry_cnt - 1; + sg_entry_cnt = 0; + } + + scsi_sg_q.q_no = next_qp; + AscMemWordCopyPtrToLram(iop_base, + q_addr + ASC_SCSIQ_SGHD_CPY_BEG, + (uchar *)&scsi_sg_q, + sizeof(ASC_SG_LIST_Q) >> 1); + + AscMemDWordCopyPtrToLram(iop_base, + q_addr + ASC_SGQ_LIST_BEG, + (uchar *)&sg_head-> + sg_list[scsiq->next_sg_index], + sg_list_dwords); + + scsiq->next_sg_index += ASC_SG_LIST_PER_Q; + + /* + * If the just completed SG queue contained the + * last SG element, then no more SG queues need + * to be written. + */ + if (scsi_sg_q.cntl & QCSG_SG_XFER_END) { + break; + } + + next_qp = AscReadLramByte(iop_base, + (ushort)(q_addr + + ASC_SCSIQ_B_FWD)); + q_addr = ASC_QNO_TO_QADDR(next_qp); + } + + /* + * Clear the halt condition so the RISC will be restarted + * after the return. + */ + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); + return (0); + } +#endif /* CC_VERY_LONG_SG_LIST */ + return (0); +} + +/* + * void + * DvcGetQinfo(PortAddr iop_base, ushort s_addr, uchar *inbuf, int words) + * + * Calling/Exit State: + * none + * + * Description: + * Input an ASC_QDONE_INFO structure from the chip + */ +static void +DvcGetQinfo(PortAddr iop_base, ushort s_addr, uchar *inbuf, int words) +{ + int i; + ushort word; + + AscSetChipLramAddr(iop_base, s_addr); + for (i = 0; i < 2 * words; i += 2) { + if (i == 10) { + continue; + } + word = inpw(iop_base + IOP_RAM_DATA); + inbuf[i] = word & 0xff; + inbuf[i + 1] = (word >> 8) & 0xff; + } + ASC_DBG_PRT_HEX(2, "DvcGetQinfo", inbuf, 2 * words); +} + +static uchar +_AscCopyLramScsiDoneQ(PortAddr iop_base, + ushort q_addr, + ASC_QDONE_INFO *scsiq, ASC_DCNT max_dma_count) +{ + ushort _val; + uchar sg_queue_cnt; + + DvcGetQinfo(iop_base, + q_addr + ASC_SCSIQ_DONE_INFO_BEG, + (uchar *)scsiq, + (sizeof(ASC_SCSIQ_2) + sizeof(ASC_SCSIQ_3)) / 2); + + _val = AscReadLramWord(iop_base, + (ushort)(q_addr + (ushort)ASC_SCSIQ_B_STATUS)); + scsiq->q_status = (uchar)_val; + scsiq->q_no = (uchar)(_val >> 8); + _val = AscReadLramWord(iop_base, + (ushort)(q_addr + (ushort)ASC_SCSIQ_B_CNTL)); + scsiq->cntl = (uchar)_val; + sg_queue_cnt = (uchar)(_val >> 8); + _val = AscReadLramWord(iop_base, + (ushort)(q_addr + + (ushort)ASC_SCSIQ_B_SENSE_LEN)); + scsiq->sense_len = (uchar)_val; + scsiq->extra_bytes = (uchar)(_val >> 8); + + /* + * Read high word of remain bytes from alternate location. + */ + scsiq->remain_bytes = (((ADV_DCNT)AscReadLramWord(iop_base, + (ushort)(q_addr + + (ushort) + ASC_SCSIQ_W_ALT_DC1))) + << 16); + /* + * Read low word of remain bytes from original location. + */ + scsiq->remain_bytes += AscReadLramWord(iop_base, + (ushort)(q_addr + (ushort) + ASC_SCSIQ_DW_REMAIN_XFER_CNT)); + + scsiq->remain_bytes &= max_dma_count; + return sg_queue_cnt; +} + +/* + * asc_isr_callback() - Second Level Interrupt Handler called by AscISR(). + * + * Interrupt callback function for the Narrow SCSI Asc Library. + */ +static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) +{ + asc_board_t *boardp; + struct scsi_cmnd *scp; + struct Scsi_Host *shost; + + ASC_DBG2(1, "asc_isr_callback: asc_dvc_varp 0x%lx, qdonep 0x%lx\n", + (ulong)asc_dvc_varp, (ulong)qdonep); + ASC_DBG_PRT_ASC_QDONE_INFO(2, qdonep); + + /* + * Get the struct scsi_cmnd structure and Scsi_Host structure for the + * command that has been completed. + */ + scp = (struct scsi_cmnd *)ASC_U32_TO_VADDR(qdonep->d2.srb_ptr); + ASC_DBG1(1, "asc_isr_callback: scp 0x%lx\n", (ulong)scp); + + if (scp == NULL) { + ASC_PRINT("asc_isr_callback: scp is NULL\n"); + return; + } + ASC_DBG_PRT_CDB(2, scp->cmnd, scp->cmd_len); + + shost = scp->device->host; + ASC_STATS(shost, callback); + ASC_DBG1(1, "asc_isr_callback: shost 0x%lx\n", (ulong)shost); + + boardp = ASC_BOARDP(shost); + BUG_ON(asc_dvc_varp != &boardp->dvc_var.asc_dvc_var); + + /* + * 'qdonep' contains the command's ending status. + */ + switch (qdonep->d3.done_stat) { + case QD_NO_ERROR: + ASC_DBG(2, "asc_isr_callback: QD_NO_ERROR\n"); + scp->result = 0; + + /* + * Check for an underrun condition. + * + * If there was no error and an underrun condition, then + * return the number of underrun bytes. + */ + if (scp->request_bufflen != 0 && qdonep->remain_bytes != 0 && + qdonep->remain_bytes <= scp->request_bufflen) { + ASC_DBG1(1, + "asc_isr_callback: underrun condition %u bytes\n", + (unsigned)qdonep->remain_bytes); + scp->resid = qdonep->remain_bytes; + } + break; + + case QD_WITH_ERROR: + ASC_DBG(2, "asc_isr_callback: QD_WITH_ERROR\n"); + switch (qdonep->d3.host_stat) { + case QHSTA_NO_ERROR: + if (qdonep->d3.scsi_stat == SAM_STAT_CHECK_CONDITION) { + ASC_DBG(2, + "asc_isr_callback: SAM_STAT_CHECK_CONDITION\n"); + ASC_DBG_PRT_SENSE(2, scp->sense_buffer, + sizeof(scp->sense_buffer)); + /* + * Note: The 'status_byte()' macro used by + * target drivers defined in scsi.h shifts the + * status byte returned by host drivers right + * by 1 bit. This is why target drivers also + * use right shifted status byte definitions. + * For instance target drivers use + * CHECK_CONDITION, defined to 0x1, instead of + * the SCSI defined check condition value of + * 0x2. Host drivers are supposed to return + * the status byte as it is defined by SCSI. + */ + scp->result = DRIVER_BYTE(DRIVER_SENSE) | + STATUS_BYTE(qdonep->d3.scsi_stat); + } else { + scp->result = STATUS_BYTE(qdonep->d3.scsi_stat); + } + break; + + default: + /* QHSTA error occurred */ + ASC_DBG1(1, "asc_isr_callback: host_stat 0x%x\n", + qdonep->d3.host_stat); + scp->result = HOST_BYTE(DID_BAD_TARGET); + break; + } + break; + + case QD_ABORTED_BY_HOST: + ASC_DBG(1, "asc_isr_callback: QD_ABORTED_BY_HOST\n"); + scp->result = + HOST_BYTE(DID_ABORT) | MSG_BYTE(qdonep->d3. + scsi_msg) | + STATUS_BYTE(qdonep->d3.scsi_stat); + break; + + default: + ASC_DBG1(1, "asc_isr_callback: done_stat 0x%x\n", + qdonep->d3.done_stat); + scp->result = + HOST_BYTE(DID_ERROR) | MSG_BYTE(qdonep->d3. + scsi_msg) | + STATUS_BYTE(qdonep->d3.scsi_stat); + break; + } + + /* + * If the 'init_tidmask' bit isn't already set for the target and the + * current request finished normally, then set the bit for the target + * to indicate that a device is present. + */ + if ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(scp->device->id)) == 0 && + qdonep->d3.done_stat == QD_NO_ERROR && + qdonep->d3.host_stat == QHSTA_NO_ERROR) { + boardp->init_tidmask |= ADV_TID_TO_TIDMASK(scp->device->id); + } + + asc_scsi_done(scp); + + return; +} + +static int AscIsrQDone(ASC_DVC_VAR *asc_dvc) +{ + uchar next_qp; + uchar n_q_used; + uchar sg_list_qp; + uchar sg_queue_cnt; + uchar q_cnt; + uchar done_q_tail; + uchar tid_no; + ASC_SCSI_BIT_ID_TYPE scsi_busy; + ASC_SCSI_BIT_ID_TYPE target_id; + PortAddr iop_base; + ushort q_addr; + ushort sg_q_addr; + uchar cur_target_qng; + ASC_QDONE_INFO scsiq_buf; + ASC_QDONE_INFO *scsiq; + int false_overrun; + + iop_base = asc_dvc->iop_base; + n_q_used = 1; + scsiq = (ASC_QDONE_INFO *)&scsiq_buf; + done_q_tail = (uchar)AscGetVarDoneQTail(iop_base); + q_addr = ASC_QNO_TO_QADDR(done_q_tail); + next_qp = AscReadLramByte(iop_base, + (ushort)(q_addr + (ushort)ASC_SCSIQ_B_FWD)); + if (next_qp != ASC_QLINK_END) { + AscPutVarDoneQTail(iop_base, next_qp); + q_addr = ASC_QNO_TO_QADDR(next_qp); + sg_queue_cnt = _AscCopyLramScsiDoneQ(iop_base, q_addr, scsiq, + asc_dvc->max_dma_count); + AscWriteLramByte(iop_base, + (ushort)(q_addr + + (ushort)ASC_SCSIQ_B_STATUS), + (uchar)(scsiq-> + q_status & (uchar)~(QS_READY | + QS_ABORTED))); + tid_no = ASC_TIX_TO_TID(scsiq->d2.target_ix); + target_id = ASC_TIX_TO_TARGET_ID(scsiq->d2.target_ix); + if ((scsiq->cntl & QC_SG_HEAD) != 0) { + sg_q_addr = q_addr; + sg_list_qp = next_qp; + for (q_cnt = 0; q_cnt < sg_queue_cnt; q_cnt++) { + sg_list_qp = AscReadLramByte(iop_base, + (ushort)(sg_q_addr + + (ushort) + ASC_SCSIQ_B_FWD)); + sg_q_addr = ASC_QNO_TO_QADDR(sg_list_qp); + if (sg_list_qp == ASC_QLINK_END) { + AscSetLibErrorCode(asc_dvc, + ASCQ_ERR_SG_Q_LINKS); + scsiq->d3.done_stat = QD_WITH_ERROR; + scsiq->d3.host_stat = + QHSTA_D_QDONE_SG_LIST_CORRUPTED; + goto FATAL_ERR_QDONE; + } + AscWriteLramByte(iop_base, + (ushort)(sg_q_addr + (ushort) + ASC_SCSIQ_B_STATUS), + QS_FREE); + } + n_q_used = sg_queue_cnt + 1; + AscPutVarDoneQTail(iop_base, sg_list_qp); + } + if (asc_dvc->queue_full_or_busy & target_id) { + cur_target_qng = AscReadLramByte(iop_base, + (ushort)((ushort) + ASC_QADR_BEG + + (ushort) + scsiq->d2. + target_ix)); + if (cur_target_qng < asc_dvc->max_dvc_qng[tid_no]) { + scsi_busy = AscReadLramByte(iop_base, (ushort) + ASCV_SCSIBUSY_B); + scsi_busy &= ~target_id; + AscWriteLramByte(iop_base, + (ushort)ASCV_SCSIBUSY_B, + scsi_busy); + asc_dvc->queue_full_or_busy &= ~target_id; + } + } + if (asc_dvc->cur_total_qng >= n_q_used) { + asc_dvc->cur_total_qng -= n_q_used; + if (asc_dvc->cur_dvc_qng[tid_no] != 0) { + asc_dvc->cur_dvc_qng[tid_no]--; + } + } else { + AscSetLibErrorCode(asc_dvc, ASCQ_ERR_CUR_QNG); + scsiq->d3.done_stat = QD_WITH_ERROR; + goto FATAL_ERR_QDONE; + } + if ((scsiq->d2.srb_ptr == 0UL) || + ((scsiq->q_status & QS_ABORTED) != 0)) { + return (0x11); + } else if (scsiq->q_status == QS_DONE) { + false_overrun = FALSE; + if (scsiq->extra_bytes != 0) { + scsiq->remain_bytes += + (ADV_DCNT)scsiq->extra_bytes; + } + if (scsiq->d3.done_stat == QD_WITH_ERROR) { + if (scsiq->d3.host_stat == + QHSTA_M_DATA_OVER_RUN) { + if ((scsiq-> + cntl & (QC_DATA_IN | QC_DATA_OUT)) + == 0) { + scsiq->d3.done_stat = + QD_NO_ERROR; + scsiq->d3.host_stat = + QHSTA_NO_ERROR; + } else if (false_overrun) { + scsiq->d3.done_stat = + QD_NO_ERROR; + scsiq->d3.host_stat = + QHSTA_NO_ERROR; + } + } else if (scsiq->d3.host_stat == + QHSTA_M_HUNG_REQ_SCSI_BUS_RESET) { + AscStopChip(iop_base); + AscSetChipControl(iop_base, + (uchar)(CC_SCSI_RESET + | CC_HALT)); + udelay(60); + AscSetChipControl(iop_base, CC_HALT); + AscSetChipStatus(iop_base, + CIW_CLR_SCSI_RESET_INT); + AscSetChipStatus(iop_base, 0); + AscSetChipControl(iop_base, 0); + } + } + if ((scsiq->cntl & QC_NO_CALLBACK) == 0) { + asc_isr_callback(asc_dvc, scsiq); + } else { + if ((AscReadLramByte(iop_base, + (ushort)(q_addr + (ushort) + ASC_SCSIQ_CDB_BEG)) + == START_STOP)) { + asc_dvc->unit_not_ready &= ~target_id; + if (scsiq->d3.done_stat != QD_NO_ERROR) { + asc_dvc->start_motor &= + ~target_id; + } + } + } + return (1); + } else { + AscSetLibErrorCode(asc_dvc, ASCQ_ERR_Q_STATUS); + FATAL_ERR_QDONE: + if ((scsiq->cntl & QC_NO_CALLBACK) == 0) { + asc_isr_callback(asc_dvc, scsiq); + } + return (0x80); + } + } + return (0); +} + +static int AscISR(ASC_DVC_VAR *asc_dvc) +{ + ASC_CS_TYPE chipstat; + PortAddr iop_base; + ushort saved_ram_addr; + uchar ctrl_reg; + uchar saved_ctrl_reg; + int int_pending; + int status; + uchar host_flag; + + iop_base = asc_dvc->iop_base; + int_pending = FALSE; + + if (AscIsIntPending(iop_base) == 0) + return int_pending; + + if ((asc_dvc->init_state & ASC_INIT_STATE_END_LOAD_MC) == 0) { + return ERR; + } + if (asc_dvc->in_critical_cnt != 0) { + AscSetLibErrorCode(asc_dvc, ASCQ_ERR_ISR_ON_CRITICAL); + return ERR; + } + if (asc_dvc->is_in_int) { + AscSetLibErrorCode(asc_dvc, ASCQ_ERR_ISR_RE_ENTRY); + return ERR; + } + asc_dvc->is_in_int = TRUE; + ctrl_reg = AscGetChipControl(iop_base); + saved_ctrl_reg = ctrl_reg & (~(CC_SCSI_RESET | CC_CHIP_RESET | + CC_SINGLE_STEP | CC_DIAG | CC_TEST)); + chipstat = AscGetChipStatus(iop_base); + if (chipstat & CSW_SCSI_RESET_LATCH) { + if (!(asc_dvc->bus_type & (ASC_IS_VL | ASC_IS_EISA))) { + int i = 10; + int_pending = TRUE; + asc_dvc->sdtr_done = 0; + saved_ctrl_reg &= (uchar)(~CC_HALT); + while ((AscGetChipStatus(iop_base) & + CSW_SCSI_RESET_ACTIVE) && (i-- > 0)) { + mdelay(100); + } + AscSetChipControl(iop_base, (CC_CHIP_RESET | CC_HALT)); + AscSetChipControl(iop_base, CC_HALT); + AscSetChipStatus(iop_base, CIW_CLR_SCSI_RESET_INT); + AscSetChipStatus(iop_base, 0); + chipstat = AscGetChipStatus(iop_base); + } + } + saved_ram_addr = AscGetChipLramAddr(iop_base); + host_flag = AscReadLramByte(iop_base, + ASCV_HOST_FLAG_B) & + (uchar)(~ASC_HOST_FLAG_IN_ISR); + AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, + (uchar)(host_flag | (uchar)ASC_HOST_FLAG_IN_ISR)); + if ((chipstat & CSW_INT_PENDING) || (int_pending)) { + AscAckInterrupt(iop_base); + int_pending = TRUE; + if ((chipstat & CSW_HALTED) && (ctrl_reg & CC_SINGLE_STEP)) { + if (AscIsrChipHalted(asc_dvc) == ERR) { + goto ISR_REPORT_QDONE_FATAL_ERROR; + } else { + saved_ctrl_reg &= (uchar)(~CC_HALT); + } + } else { + ISR_REPORT_QDONE_FATAL_ERROR: + if ((asc_dvc->dvc_cntl & ASC_CNTL_INT_MULTI_Q) != 0) { + while (((status = + AscIsrQDone(asc_dvc)) & 0x01) != 0) { + } + } else { + do { + if ((status = + AscIsrQDone(asc_dvc)) == 1) { + break; + } + } while (status == 0x11); + } + if ((status & 0x80) != 0) + int_pending = ERR; + } + } + AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, host_flag); + AscSetChipLramAddr(iop_base, saved_ram_addr); + AscSetChipControl(iop_base, saved_ctrl_reg); + asc_dvc->is_in_int = FALSE; + return int_pending; +} + +/* + * advansys_reset() + * + * Reset the bus associated with the command 'scp'. + * + * This function runs its own thread. Interrupts must be blocked but + * sleeping is allowed and no locking other than for host structures is + * required. Returns SUCCESS or FAILED. + */ +static int advansys_reset(struct scsi_cmnd *scp) +{ + struct Scsi_Host *shost; + asc_board_t *boardp; + ASC_DVC_VAR *asc_dvc_varp; + ADV_DVC_VAR *adv_dvc_varp; + ulong flags; + int status; + int ret = SUCCESS; + + ASC_DBG1(1, "advansys_reset: 0x%lx\n", (ulong)scp); + +#ifdef ADVANSYS_STATS + if (scp->device->host != NULL) { + ASC_STATS(scp->device->host, reset); + } +#endif /* ADVANSYS_STATS */ + + if ((shost = scp->device->host) == NULL) { + scp->result = HOST_BYTE(DID_ERROR); + return FAILED; + } + + boardp = ASC_BOARDP(shost); + + ASC_PRINT1("advansys_reset: board %d: SCSI bus reset started...\n", + boardp->id); + /* + * Check for re-entrancy. + */ + spin_lock_irqsave(&boardp->lock, flags); + if (boardp->flags & ASC_HOST_IN_RESET) { + spin_unlock_irqrestore(&boardp->lock, flags); + return FAILED; + } + boardp->flags |= ASC_HOST_IN_RESET; + spin_unlock_irqrestore(&boardp->lock, flags); + + if (ASC_NARROW_BOARD(boardp)) { + /* + * Narrow Board + */ + asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; + + /* + * Reset the chip and SCSI bus. + */ + ASC_DBG(1, "advansys_reset: before AscInitAsc1000Driver()\n"); + status = AscInitAsc1000Driver(asc_dvc_varp); + + /* Refer to ASC_IERR_* defintions for meaning of 'err_code'. */ + if (asc_dvc_varp->err_code) { + ASC_PRINT2("advansys_reset: board %d: SCSI bus reset " + "error: 0x%x\n", boardp->id, + asc_dvc_varp->err_code); + ret = FAILED; + } else if (status) { + ASC_PRINT2("advansys_reset: board %d: SCSI bus reset " + "warning: 0x%x\n", boardp->id, status); + } else { + ASC_PRINT1("advansys_reset: board %d: SCSI bus reset " + "successful.\n", boardp->id); + } + + ASC_DBG(1, "advansys_reset: after AscInitAsc1000Driver()\n"); + spin_lock_irqsave(&boardp->lock, flags); + + } else { + /* + * Wide Board + * + * If the suggest reset bus flags are set, then reset the bus. + * Otherwise only reset the device. + */ + adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; + + /* + * Reset the target's SCSI bus. + */ + ASC_DBG(1, "advansys_reset: before AdvResetChipAndSB()\n"); + switch (AdvResetChipAndSB(adv_dvc_varp)) { + case ASC_TRUE: + ASC_PRINT1("advansys_reset: board %d: SCSI bus reset " + "successful.\n", boardp->id); + break; + case ASC_FALSE: + default: + ASC_PRINT1("advansys_reset: board %d: SCSI bus reset " + "error.\n", boardp->id); + ret = FAILED; + break; + } + spin_lock_irqsave(&boardp->lock, flags); + AdvISR(adv_dvc_varp); + } + /* Board lock is held. */ + + /* Save the time of the most recently completed reset. */ + boardp->last_reset = jiffies; + + /* Clear reset flag. */ + boardp->flags &= ~ASC_HOST_IN_RESET; + spin_unlock_irqrestore(&boardp->lock, flags); + + ASC_DBG1(1, "advansys_reset: ret %d\n", ret); + + return ret; +} + +/* + * advansys_biosparam() + * + * Translate disk drive geometry if the "BIOS greater than 1 GB" + * support is enabled for a drive. + * + * ip (information pointer) is an int array with the following definition: + * ip[0]: heads + * ip[1]: sectors + * ip[2]: cylinders + */ +static int +advansys_biosparam(struct scsi_device *sdev, struct block_device *bdev, + sector_t capacity, int ip[]) +{ + asc_board_t *boardp; + + ASC_DBG(1, "advansys_biosparam: begin\n"); + ASC_STATS(sdev->host, biosparam); + boardp = ASC_BOARDP(sdev->host); + if (ASC_NARROW_BOARD(boardp)) { + if ((boardp->dvc_var.asc_dvc_var.dvc_cntl & + ASC_CNTL_BIOS_GT_1GB) && capacity > 0x200000) { + ip[0] = 255; + ip[1] = 63; + } else { + ip[0] = 64; + ip[1] = 32; + } + } else { + if ((boardp->dvc_var.adv_dvc_var.bios_ctrl & + BIOS_CTRL_EXTENDED_XLAT) && capacity > 0x200000) { + ip[0] = 255; + ip[1] = 63; + } else { + ip[0] = 64; + ip[1] = 32; + } + } + ip[2] = (unsigned long)capacity / (ip[0] * ip[1]); + ASC_DBG(1, "advansys_biosparam: end\n"); + return 0; +} + +/* + * First-level interrupt handler. + * + * 'dev_id' is a pointer to the interrupting adapter's Scsi_Host. + */ +static irqreturn_t advansys_interrupt(int irq, void *dev_id) +{ + unsigned long flags; + struct Scsi_Host *shost = dev_id; + asc_board_t *boardp = ASC_BOARDP(shost); + irqreturn_t result = IRQ_NONE; + + ASC_DBG1(2, "advansys_interrupt: boardp 0x%p\n", boardp); + spin_lock_irqsave(&boardp->lock, flags); + if (ASC_NARROW_BOARD(boardp)) { + if (AscIsIntPending(shost->io_port)) { + result = IRQ_HANDLED; + ASC_STATS(shost, interrupt); + ASC_DBG(1, "advansys_interrupt: before AscISR()\n"); + AscISR(&boardp->dvc_var.asc_dvc_var); + } + } else { + ASC_DBG(1, "advansys_interrupt: before AdvISR()\n"); + if (AdvISR(&boardp->dvc_var.adv_dvc_var)) { + result = IRQ_HANDLED; + ASC_STATS(shost, interrupt); + } + } + spin_unlock_irqrestore(&boardp->lock, flags); + + ASC_DBG(1, "advansys_interrupt: end\n"); + return result; +} + +static int AscHostReqRiscHalt(PortAddr iop_base) +{ + int count = 0; + int sta = 0; + uchar saved_stop_code; + + if (AscIsChipHalted(iop_base)) + return (1); + saved_stop_code = AscReadLramByte(iop_base, ASCV_STOP_CODE_B); + AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, + ASC_STOP_HOST_REQ_RISC_HALT | ASC_STOP_REQ_RISC_STOP); + do { + if (AscIsChipHalted(iop_base)) { + sta = 1; + break; + } + mdelay(100); + } while (count++ < 20); + AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, saved_stop_code); + return (sta); +} + +static int +AscSetRunChipSynRegAtID(PortAddr iop_base, uchar tid_no, uchar sdtr_data) +{ + int sta = FALSE; + + if (AscHostReqRiscHalt(iop_base)) { + sta = AscSetChipSynRegAtID(iop_base, tid_no, sdtr_data); + AscStartChip(iop_base); + } + return sta; +} + +static void AscAsyncFix(ASC_DVC_VAR *asc_dvc, struct scsi_device *sdev) +{ + char type = sdev->type; + ASC_SCSI_BIT_ID_TYPE tid_bits = 1 << sdev->id; + + if (!(asc_dvc->bug_fix_cntl & ASC_BUG_FIX_ASYN_USE_SYN)) + return; + if (asc_dvc->init_sdtr & tid_bits) + return; + + if ((type == TYPE_ROM) && (strncmp(sdev->vendor, "HP ", 3) == 0)) + asc_dvc->pci_fix_asyn_xfer_always |= tid_bits; + + asc_dvc->pci_fix_asyn_xfer |= tid_bits; + if ((type == TYPE_PROCESSOR) || (type == TYPE_SCANNER) || + (type == TYPE_ROM) || (type == TYPE_TAPE)) + asc_dvc->pci_fix_asyn_xfer &= ~tid_bits; + + if (asc_dvc->pci_fix_asyn_xfer & tid_bits) + AscSetRunChipSynRegAtID(asc_dvc->iop_base, sdev->id, + ASYN_SDTR_DATA_FIX_PCI_REV_AB); +} + +static void +advansys_narrow_slave_configure(struct scsi_device *sdev, ASC_DVC_VAR *asc_dvc) +{ + ASC_SCSI_BIT_ID_TYPE tid_bit = 1 << sdev->id; + ASC_SCSI_BIT_ID_TYPE orig_use_tagged_qng = asc_dvc->use_tagged_qng; + + if (sdev->lun == 0) { + ASC_SCSI_BIT_ID_TYPE orig_init_sdtr = asc_dvc->init_sdtr; + if ((asc_dvc->cfg->sdtr_enable & tid_bit) && sdev->sdtr) { + asc_dvc->init_sdtr |= tid_bit; + } else { + asc_dvc->init_sdtr &= ~tid_bit; + } + + if (orig_init_sdtr != asc_dvc->init_sdtr) + AscAsyncFix(asc_dvc, sdev); + } + + if (sdev->tagged_supported) { + if (asc_dvc->cfg->cmd_qng_enabled & tid_bit) { + if (sdev->lun == 0) { + asc_dvc->cfg->can_tagged_qng |= tid_bit; + asc_dvc->use_tagged_qng |= tid_bit; + } + scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, + asc_dvc->max_dvc_qng[sdev->id]); + } + } else { + if (sdev->lun == 0) { + asc_dvc->cfg->can_tagged_qng &= ~tid_bit; + asc_dvc->use_tagged_qng &= ~tid_bit; + } + scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); + } + + if ((sdev->lun == 0) && + (orig_use_tagged_qng != asc_dvc->use_tagged_qng)) { + AscWriteLramByte(asc_dvc->iop_base, ASCV_DISC_ENABLE_B, + asc_dvc->cfg->disc_enable); + AscWriteLramByte(asc_dvc->iop_base, ASCV_USE_TAGGED_QNG_B, + asc_dvc->use_tagged_qng); + AscWriteLramByte(asc_dvc->iop_base, ASCV_CAN_TAGGED_QNG_B, + asc_dvc->cfg->can_tagged_qng); + + asc_dvc->max_dvc_qng[sdev->id] = + asc_dvc->cfg->max_tag_qng[sdev->id]; + AscWriteLramByte(asc_dvc->iop_base, + (ushort)(ASCV_MAX_DVC_QNG_BEG + sdev->id), + asc_dvc->max_dvc_qng[sdev->id]); + } +} + +/* + * Wide Transfers + * + * If the EEPROM enabled WDTR for the device and the device supports wide + * bus (16 bit) transfers, then turn on the device's 'wdtr_able' bit and + * write the new value to the microcode. + */ +static void +advansys_wide_enable_wdtr(AdvPortAddr iop_base, unsigned short tidmask) +{ + unsigned short cfg_word; + AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, cfg_word); + if ((cfg_word & tidmask) != 0) + return; + + cfg_word |= tidmask; + AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, cfg_word); + + /* + * Clear the microcode SDTR and WDTR negotiation done indicators for + * the target to cause it to negotiate with the new setting set above. + * WDTR when accepted causes the target to enter asynchronous mode, so + * SDTR must be negotiated. + */ + AdvReadWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); + cfg_word &= ~tidmask; + AdvWriteWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); + AdvReadWordLram(iop_base, ASC_MC_WDTR_DONE, cfg_word); + cfg_word &= ~tidmask; + AdvWriteWordLram(iop_base, ASC_MC_WDTR_DONE, cfg_word); +} + +/* + * Synchronous Transfers + * + * If the EEPROM enabled SDTR for the device and the device + * supports synchronous transfers, then turn on the device's + * 'sdtr_able' bit. Write the new value to the microcode. + */ +static void +advansys_wide_enable_sdtr(AdvPortAddr iop_base, unsigned short tidmask) +{ + unsigned short cfg_word; + AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, cfg_word); + if ((cfg_word & tidmask) != 0) + return; + + cfg_word |= tidmask; + AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, cfg_word); + + /* + * Clear the microcode "SDTR negotiation" done indicator for the + * target to cause it to negotiate with the new setting set above. + */ + AdvReadWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); + cfg_word &= ~tidmask; + AdvWriteWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); +} + +/* + * PPR (Parallel Protocol Request) Capable + * + * If the device supports DT mode, then it must be PPR capable. + * The PPR message will be used in place of the SDTR and WDTR + * messages to negotiate synchronous speed and offset, transfer + * width, and protocol options. + */ +static void advansys_wide_enable_ppr(ADV_DVC_VAR *adv_dvc, + AdvPortAddr iop_base, unsigned short tidmask) +{ + AdvReadWordLram(iop_base, ASC_MC_PPR_ABLE, adv_dvc->ppr_able); + adv_dvc->ppr_able |= tidmask; + AdvWriteWordLram(iop_base, ASC_MC_PPR_ABLE, adv_dvc->ppr_able); +} + +static void +advansys_wide_slave_configure(struct scsi_device *sdev, ADV_DVC_VAR *adv_dvc) +{ + AdvPortAddr iop_base = adv_dvc->iop_base; + unsigned short tidmask = 1 << sdev->id; + + if (sdev->lun == 0) { + /* + * Handle WDTR, SDTR, and Tag Queuing. If the feature + * is enabled in the EEPROM and the device supports the + * feature, then enable it in the microcode. + */ + + if ((adv_dvc->wdtr_able & tidmask) && sdev->wdtr) + advansys_wide_enable_wdtr(iop_base, tidmask); + if ((adv_dvc->sdtr_able & tidmask) && sdev->sdtr) + advansys_wide_enable_sdtr(iop_base, tidmask); + if (adv_dvc->chip_type == ADV_CHIP_ASC38C1600 && sdev->ppr) + advansys_wide_enable_ppr(adv_dvc, iop_base, tidmask); + + /* + * Tag Queuing is disabled for the BIOS which runs in polled + * mode and would see no benefit from Tag Queuing. Also by + * disabling Tag Queuing in the BIOS devices with Tag Queuing + * bugs will at least work with the BIOS. + */ + if ((adv_dvc->tagqng_able & tidmask) && + sdev->tagged_supported) { + unsigned short cfg_word; + AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, cfg_word); + cfg_word |= tidmask; + AdvWriteWordLram(iop_base, ASC_MC_TAGQNG_ABLE, + cfg_word); + AdvWriteByteLram(iop_base, + ASC_MC_NUMBER_OF_MAX_CMD + sdev->id, + adv_dvc->max_dvc_qng); + } + } + + if ((adv_dvc->tagqng_able & tidmask) && sdev->tagged_supported) { + scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, + adv_dvc->max_dvc_qng); + } else { + scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); + } +} + +/* + * Set the number of commands to queue per device for the + * specified host adapter. + */ +static int advansys_slave_configure(struct scsi_device *sdev) +{ + asc_board_t *boardp = ASC_BOARDP(sdev->host); + boardp->flags |= ASC_SELECT_QUEUE_DEPTHS; + + /* + * Save a pointer to the sdev and set its initial/maximum + * queue depth. Only save the pointer for a lun0 dev though. + */ + if (sdev->lun == 0) + boardp->device[sdev->id] = sdev; + + if (ASC_NARROW_BOARD(boardp)) + advansys_narrow_slave_configure(sdev, + &boardp->dvc_var.asc_dvc_var); + else + advansys_wide_slave_configure(sdev, + &boardp->dvc_var.adv_dvc_var); + + return 0; +} + +/* + * Build a request structure for the Asc Library (Narrow Board). + * + * The global structures 'asc_scsi_q' and 'asc_sg_head' are + * used to build the request. + * + * If an error occurs, then return ASC_ERROR. + */ +static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp) +{ + /* + * Mutually exclusive access is required to 'asc_scsi_q' and + * 'asc_sg_head' until after the request is started. + */ + memset(&asc_scsi_q, 0, sizeof(ASC_SCSI_Q)); + + /* + * Point the ASC_SCSI_Q to the 'struct scsi_cmnd'. + */ + asc_scsi_q.q2.srb_ptr = ASC_VADDR_TO_U32(scp); + + /* + * Build the ASC_SCSI_Q request. + */ + asc_scsi_q.cdbptr = &scp->cmnd[0]; + asc_scsi_q.q2.cdb_len = scp->cmd_len; + asc_scsi_q.q1.target_id = ASC_TID_TO_TARGET_ID(scp->device->id); + asc_scsi_q.q1.target_lun = scp->device->lun; + asc_scsi_q.q2.target_ix = + ASC_TIDLUN_TO_IX(scp->device->id, scp->device->lun); + asc_scsi_q.q1.sense_addr = + cpu_to_le32(virt_to_bus(&scp->sense_buffer[0])); + asc_scsi_q.q1.sense_len = sizeof(scp->sense_buffer); + + /* + * If there are any outstanding requests for the current target, + * then every 255th request send an ORDERED request. This heuristic + * tries to retain the benefit of request sorting while preventing + * request starvation. 255 is the max number of tags or pending commands + * a device may have outstanding. + * + * The request count is incremented below for every successfully + * started request. + * + */ + if ((boardp->dvc_var.asc_dvc_var.cur_dvc_qng[scp->device->id] > 0) && + (boardp->reqcnt[scp->device->id] % 255) == 0) { + asc_scsi_q.q2.tag_code = MSG_ORDERED_TAG; + } else { + asc_scsi_q.q2.tag_code = MSG_SIMPLE_TAG; + } + + /* + * Build ASC_SCSI_Q for a contiguous buffer or a scatter-gather + * buffer command. + */ + if (scp->use_sg == 0) { + /* + * CDB request of single contiguous buffer. + */ + ASC_STATS(scp->device->host, cont_cnt); + scp->SCp.dma_handle = scp->request_bufflen ? + dma_map_single(boardp->dev, scp->request_buffer, + scp->request_bufflen, + scp->sc_data_direction) : 0; + asc_scsi_q.q1.data_addr = cpu_to_le32(scp->SCp.dma_handle); + asc_scsi_q.q1.data_cnt = cpu_to_le32(scp->request_bufflen); + ASC_STATS_ADD(scp->device->host, cont_xfer, + ASC_CEILING(scp->request_bufflen, 512)); + asc_scsi_q.q1.sg_queue_cnt = 0; + asc_scsi_q.sg_head = NULL; + } else { + /* + * CDB scatter-gather request list. + */ + int sgcnt; + int use_sg; + struct scatterlist *slp; + + slp = (struct scatterlist *)scp->request_buffer; + use_sg = dma_map_sg(boardp->dev, slp, scp->use_sg, + scp->sc_data_direction); + + if (use_sg > scp->device->host->sg_tablesize) { + ASC_PRINT3("asc_build_req: board %d: use_sg %d > " + "sg_tablesize %d\n", boardp->id, use_sg, + scp->device->host->sg_tablesize); + dma_unmap_sg(boardp->dev, slp, scp->use_sg, + scp->sc_data_direction); + scp->result = HOST_BYTE(DID_ERROR); + return ASC_ERROR; + } + + ASC_STATS(scp->device->host, sg_cnt); + + /* + * Use global ASC_SG_HEAD structure and set the ASC_SCSI_Q + * structure to point to it. + */ + memset(&asc_sg_head, 0, sizeof(ASC_SG_HEAD)); + + asc_scsi_q.q1.cntl |= QC_SG_HEAD; + asc_scsi_q.sg_head = &asc_sg_head; + asc_scsi_q.q1.data_cnt = 0; + asc_scsi_q.q1.data_addr = 0; + /* This is a byte value, otherwise it would need to be swapped. */ + asc_sg_head.entry_cnt = asc_scsi_q.q1.sg_queue_cnt = use_sg; + ASC_STATS_ADD(scp->device->host, sg_elem, + asc_sg_head.entry_cnt); + + /* + * Convert scatter-gather list into ASC_SG_HEAD list. + */ + for (sgcnt = 0; sgcnt < use_sg; sgcnt++, slp++) { + asc_sg_head.sg_list[sgcnt].addr = + cpu_to_le32(sg_dma_address(slp)); + asc_sg_head.sg_list[sgcnt].bytes = + cpu_to_le32(sg_dma_len(slp)); + ASC_STATS_ADD(scp->device->host, sg_xfer, + ASC_CEILING(sg_dma_len(slp), 512)); + } + } + + ASC_DBG_PRT_ASC_SCSI_Q(2, &asc_scsi_q); + ASC_DBG_PRT_CDB(1, scp->cmnd, scp->cmd_len); + + return ASC_NOERROR; +} + +/* + * Build scatter-gather list for Adv Library (Wide Board). + * + * Additional ADV_SG_BLOCK structures will need to be allocated + * if the total number of scatter-gather elements exceeds + * NO_OF_SG_PER_BLOCK (15). The ADV_SG_BLOCK structures are + * assumed to be physically contiguous. + * + * Return: + * ADV_SUCCESS(1) - SG List successfully created + * ADV_ERROR(-1) - SG List creation failed + */ +static int +adv_get_sglist(asc_board_t *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, + int use_sg) +{ + adv_sgblk_t *sgblkp; + ADV_SCSI_REQ_Q *scsiqp; + struct scatterlist *slp; + int sg_elem_cnt; + ADV_SG_BLOCK *sg_block, *prev_sg_block; + ADV_PADDR sg_block_paddr; + int i; + + scsiqp = (ADV_SCSI_REQ_Q *)ADV_32BALIGN(&reqp->scsi_req_q); + slp = (struct scatterlist *)scp->request_buffer; + sg_elem_cnt = use_sg; + prev_sg_block = NULL; + reqp->sgblkp = NULL; + + for (;;) { + /* + * Allocate a 'adv_sgblk_t' structure from the board free + * list. One 'adv_sgblk_t' structure holds NO_OF_SG_PER_BLOCK + * (15) scatter-gather elements. + */ + if ((sgblkp = boardp->adv_sgblkp) == NULL) { + ASC_DBG(1, "adv_get_sglist: no free adv_sgblk_t\n"); + ASC_STATS(scp->device->host, adv_build_nosg); + + /* + * Allocation failed. Free 'adv_sgblk_t' structures + * already allocated for the request. + */ + while ((sgblkp = reqp->sgblkp) != NULL) { + /* Remove 'sgblkp' from the request list. */ + reqp->sgblkp = sgblkp->next_sgblkp; + + /* Add 'sgblkp' to the board free list. */ + sgblkp->next_sgblkp = boardp->adv_sgblkp; + boardp->adv_sgblkp = sgblkp; + } + return ASC_BUSY; + } + + /* Complete 'adv_sgblk_t' board allocation. */ + boardp->adv_sgblkp = sgblkp->next_sgblkp; + sgblkp->next_sgblkp = NULL; + + /* + * Get 8 byte aligned virtual and physical addresses + * for the allocated ADV_SG_BLOCK structure. + */ + sg_block = (ADV_SG_BLOCK *)ADV_8BALIGN(&sgblkp->sg_block); + sg_block_paddr = virt_to_bus(sg_block); + + /* + * Check if this is the first 'adv_sgblk_t' for the + * request. + */ + if (reqp->sgblkp == NULL) { + /* Request's first scatter-gather block. */ + reqp->sgblkp = sgblkp; + + /* + * Set ADV_SCSI_REQ_T ADV_SG_BLOCK virtual and physical + * address pointers. + */ + scsiqp->sg_list_ptr = sg_block; + scsiqp->sg_real_addr = cpu_to_le32(sg_block_paddr); + } else { + /* Request's second or later scatter-gather block. */ + sgblkp->next_sgblkp = reqp->sgblkp; + reqp->sgblkp = sgblkp; + + /* + * Point the previous ADV_SG_BLOCK structure to + * the newly allocated ADV_SG_BLOCK structure. + */ + prev_sg_block->sg_ptr = cpu_to_le32(sg_block_paddr); + } + + for (i = 0; i < NO_OF_SG_PER_BLOCK; i++) { + sg_block->sg_list[i].sg_addr = + cpu_to_le32(sg_dma_address(slp)); + sg_block->sg_list[i].sg_count = + cpu_to_le32(sg_dma_len(slp)); + ASC_STATS_ADD(scp->device->host, sg_xfer, + ASC_CEILING(sg_dma_len(slp), 512)); + + if (--sg_elem_cnt == 0) { /* Last ADV_SG_BLOCK and scatter-gather entry. */ + sg_block->sg_cnt = i + 1; + sg_block->sg_ptr = 0L; /* Last ADV_SG_BLOCK in list. */ + return ADV_SUCCESS; + } + slp++; + } + sg_block->sg_cnt = NO_OF_SG_PER_BLOCK; + prev_sg_block = sg_block; + } +} + +/* + * Build a request structure for the Adv Library (Wide Board). + * + * If an adv_req_t can not be allocated to issue the request, + * then return ASC_BUSY. If an error occurs, then return ASC_ERROR. + * + * Multi-byte fields in the ASC_SCSI_REQ_Q that are used by the + * microcode for DMA addresses or math operations are byte swapped + * to little-endian order. + */ +static int +adv_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, + ADV_SCSI_REQ_Q **adv_scsiqpp) +{ + adv_req_t *reqp; + ADV_SCSI_REQ_Q *scsiqp; + int i; + int ret; + + /* + * Allocate an adv_req_t structure from the board to execute + * the command. + */ + if (boardp->adv_reqp == NULL) { + ASC_DBG(1, "adv_build_req: no free adv_req_t\n"); + ASC_STATS(scp->device->host, adv_build_noreq); + return ASC_BUSY; + } else { + reqp = boardp->adv_reqp; + boardp->adv_reqp = reqp->next_reqp; + reqp->next_reqp = NULL; + } + + /* + * Get 32-byte aligned ADV_SCSI_REQ_Q and ADV_SG_BLOCK pointers. + */ + scsiqp = (ADV_SCSI_REQ_Q *)ADV_32BALIGN(&reqp->scsi_req_q); + + /* + * Initialize the structure. + */ + scsiqp->cntl = scsiqp->scsi_cntl = scsiqp->done_status = 0; + + /* + * Set the ADV_SCSI_REQ_Q 'srb_ptr' to point to the adv_req_t structure. + */ + scsiqp->srb_ptr = ASC_VADDR_TO_U32(reqp); + + /* + * Set the adv_req_t 'cmndp' to point to the struct scsi_cmnd structure. + */ + reqp->cmndp = scp; + + /* + * Build the ADV_SCSI_REQ_Q request. + */ + + /* Set CDB length and copy it to the request structure. */ + scsiqp->cdb_len = scp->cmd_len; + /* Copy first 12 CDB bytes to cdb[]. */ + for (i = 0; i < scp->cmd_len && i < 12; i++) { + scsiqp->cdb[i] = scp->cmnd[i]; + } + /* Copy last 4 CDB bytes, if present, to cdb16[]. */ + for (; i < scp->cmd_len; i++) { + scsiqp->cdb16[i - 12] = scp->cmnd[i]; + } + + scsiqp->target_id = scp->device->id; + scsiqp->target_lun = scp->device->lun; + + scsiqp->sense_addr = cpu_to_le32(virt_to_bus(&scp->sense_buffer[0])); + scsiqp->sense_len = sizeof(scp->sense_buffer); + + /* + * Build ADV_SCSI_REQ_Q for a contiguous buffer or a scatter-gather + * buffer command. + */ + + scsiqp->data_cnt = cpu_to_le32(scp->request_bufflen); + scsiqp->vdata_addr = scp->request_buffer; + scsiqp->data_addr = cpu_to_le32(virt_to_bus(scp->request_buffer)); + + if (scp->use_sg == 0) { + /* + * CDB request of single contiguous buffer. + */ + reqp->sgblkp = NULL; + scsiqp->data_cnt = cpu_to_le32(scp->request_bufflen); + if (scp->request_bufflen) { + scsiqp->vdata_addr = scp->request_buffer; + scp->SCp.dma_handle = + dma_map_single(boardp->dev, scp->request_buffer, + scp->request_bufflen, + scp->sc_data_direction); + } else { + scsiqp->vdata_addr = NULL; + scp->SCp.dma_handle = 0; + } + scsiqp->data_addr = cpu_to_le32(scp->SCp.dma_handle); + scsiqp->sg_list_ptr = NULL; + scsiqp->sg_real_addr = 0; + ASC_STATS(scp->device->host, cont_cnt); + ASC_STATS_ADD(scp->device->host, cont_xfer, + ASC_CEILING(scp->request_bufflen, 512)); + } else { + /* + * CDB scatter-gather request list. + */ + struct scatterlist *slp; + int use_sg; + + slp = (struct scatterlist *)scp->request_buffer; + use_sg = dma_map_sg(boardp->dev, slp, scp->use_sg, + scp->sc_data_direction); + + if (use_sg > ADV_MAX_SG_LIST) { + ASC_PRINT3("adv_build_req: board %d: use_sg %d > " + "ADV_MAX_SG_LIST %d\n", boardp->id, use_sg, + scp->device->host->sg_tablesize); + dma_unmap_sg(boardp->dev, slp, scp->use_sg, + scp->sc_data_direction); + scp->result = HOST_BYTE(DID_ERROR); + + /* + * Free the 'adv_req_t' structure by adding it back + * to the board free list. + */ + reqp->next_reqp = boardp->adv_reqp; + boardp->adv_reqp = reqp; + + return ASC_ERROR; + } + + ret = adv_get_sglist(boardp, reqp, scp, use_sg); + if (ret != ADV_SUCCESS) { + /* + * Free the adv_req_t structure by adding it back to + * the board free list. + */ + reqp->next_reqp = boardp->adv_reqp; + boardp->adv_reqp = reqp; + + return ret; + } + + ASC_STATS(scp->device->host, sg_cnt); + ASC_STATS_ADD(scp->device->host, sg_elem, use_sg); + } + + ASC_DBG_PRT_ADV_SCSI_REQ_Q(2, scsiqp); + ASC_DBG_PRT_CDB(1, scp->cmnd, scp->cmd_len); + + *adv_scsiqpp = scsiqp; + + return ASC_NOERROR; +} + +static int AscSgListToQueue(int sg_list) +{ + int n_sg_list_qs; + + n_sg_list_qs = ((sg_list - 1) / ASC_SG_LIST_PER_Q); + if (((sg_list - 1) % ASC_SG_LIST_PER_Q) != 0) + n_sg_list_qs++; + return n_sg_list_qs + 1; +} + +static uint +AscGetNumOfFreeQueue(ASC_DVC_VAR *asc_dvc, uchar target_ix, uchar n_qs) +{ + uint cur_used_qs; + uint cur_free_qs; + ASC_SCSI_BIT_ID_TYPE target_id; + uchar tid_no; + + target_id = ASC_TIX_TO_TARGET_ID(target_ix); + tid_no = ASC_TIX_TO_TID(target_ix); + if ((asc_dvc->unit_not_ready & target_id) || + (asc_dvc->queue_full_or_busy & target_id)) { + return 0; + } + if (n_qs == 1) { + cur_used_qs = (uint) asc_dvc->cur_total_qng + + (uint) asc_dvc->last_q_shortage + (uint) ASC_MIN_FREE_Q; + } else { + cur_used_qs = (uint) asc_dvc->cur_total_qng + + (uint) ASC_MIN_FREE_Q; + } + if ((uint) (cur_used_qs + n_qs) <= (uint) asc_dvc->max_total_qng) { + cur_free_qs = (uint) asc_dvc->max_total_qng - cur_used_qs; + if (asc_dvc->cur_dvc_qng[tid_no] >= + asc_dvc->max_dvc_qng[tid_no]) { + return 0; + } + return cur_free_qs; + } + if (n_qs > 1) { + if ((n_qs > asc_dvc->last_q_shortage) + && (n_qs <= (asc_dvc->max_total_qng - ASC_MIN_FREE_Q))) { + asc_dvc->last_q_shortage = n_qs; + } + } + return 0; +} + +static uchar AscAllocFreeQueue(PortAddr iop_base, uchar free_q_head) +{ + ushort q_addr; + uchar next_qp; + uchar q_status; + + q_addr = ASC_QNO_TO_QADDR(free_q_head); + q_status = (uchar)AscReadLramByte(iop_base, + (ushort)(q_addr + + ASC_SCSIQ_B_STATUS)); + next_qp = AscReadLramByte(iop_base, (ushort)(q_addr + ASC_SCSIQ_B_FWD)); + if (((q_status & QS_READY) == 0) && (next_qp != ASC_QLINK_END)) + return next_qp; + return ASC_QLINK_END; +} + +static uchar +AscAllocMultipleFreeQueue(PortAddr iop_base, uchar free_q_head, uchar n_free_q) +{ + uchar i; + + for (i = 0; i < n_free_q; i++) { + free_q_head = AscAllocFreeQueue(iop_base, free_q_head); + if (free_q_head == ASC_QLINK_END) + break; + } + return free_q_head; +} + +/* + * void + * DvcPutScsiQ(PortAddr iop_base, ushort s_addr, uchar *outbuf, int words) + * + * Calling/Exit State: + * none + * + * Description: + * Output an ASC_SCSI_Q structure to the chip + */ +static void +DvcPutScsiQ(PortAddr iop_base, ushort s_addr, uchar *outbuf, int words) +{ + int i; + + ASC_DBG_PRT_HEX(2, "DvcPutScsiQ", outbuf, 2 * words); + AscSetChipLramAddr(iop_base, s_addr); + for (i = 0; i < 2 * words; i += 2) { + if (i == 4 || i == 20) { + continue; + } + outpw(iop_base + IOP_RAM_DATA, + ((ushort)outbuf[i + 1] << 8) | outbuf[i]); + } +} + +static int AscPutReadyQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar q_no) +{ + ushort q_addr; + uchar tid_no; + uchar sdtr_data; + uchar syn_period_ix; + uchar syn_offset; + PortAddr iop_base; + + iop_base = asc_dvc->iop_base; + if (((asc_dvc->init_sdtr & scsiq->q1.target_id) != 0) && + ((asc_dvc->sdtr_done & scsiq->q1.target_id) == 0)) { + tid_no = ASC_TIX_TO_TID(scsiq->q2.target_ix); + sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no); + syn_period_ix = + (sdtr_data >> 4) & (asc_dvc->max_sdtr_index - 1); + syn_offset = sdtr_data & ASC_SYN_MAX_OFFSET; + AscMsgOutSDTR(asc_dvc, + asc_dvc->sdtr_period_tbl[syn_period_ix], + syn_offset); + scsiq->q1.cntl |= QC_MSG_OUT; + } + q_addr = ASC_QNO_TO_QADDR(q_no); + if ((scsiq->q1.target_id & asc_dvc->use_tagged_qng) == 0) { + scsiq->q2.tag_code &= ~MSG_SIMPLE_TAG; + } + scsiq->q1.status = QS_FREE; + AscMemWordCopyPtrToLram(iop_base, + q_addr + ASC_SCSIQ_CDB_BEG, + (uchar *)scsiq->cdbptr, scsiq->q2.cdb_len >> 1); + + DvcPutScsiQ(iop_base, + q_addr + ASC_SCSIQ_CPY_BEG, + (uchar *)&scsiq->q1.cntl, + ((sizeof(ASC_SCSIQ_1) + sizeof(ASC_SCSIQ_2)) / 2) - 1); + AscWriteLramWord(iop_base, + (ushort)(q_addr + (ushort)ASC_SCSIQ_B_STATUS), + (ushort)(((ushort)scsiq->q1. + q_no << 8) | (ushort)QS_READY)); + return 1; +} + +static int +AscPutReadySgListQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar q_no) +{ + int sta; + int i; + ASC_SG_HEAD *sg_head; + ASC_SG_LIST_Q scsi_sg_q; + ASC_DCNT saved_data_addr; + ASC_DCNT saved_data_cnt; + PortAddr iop_base; + ushort sg_list_dwords; + ushort sg_index; + ushort sg_entry_cnt; + ushort q_addr; + uchar next_qp; + + iop_base = asc_dvc->iop_base; + sg_head = scsiq->sg_head; + saved_data_addr = scsiq->q1.data_addr; + saved_data_cnt = scsiq->q1.data_cnt; + scsiq->q1.data_addr = (ASC_PADDR) sg_head->sg_list[0].addr; + scsiq->q1.data_cnt = (ASC_DCNT) sg_head->sg_list[0].bytes; +#if CC_VERY_LONG_SG_LIST + /* + * If sg_head->entry_cnt is greater than ASC_MAX_SG_LIST + * then not all SG elements will fit in the allocated queues. + * The rest of the SG elements will be copied when the RISC + * completes the SG elements that fit and halts. + */ + if (sg_head->entry_cnt > ASC_MAX_SG_LIST) { + /* + * Set sg_entry_cnt to be the number of SG elements that + * will fit in the allocated SG queues. It is minus 1, because + * the first SG element is handled above. ASC_MAX_SG_LIST is + * already inflated by 1 to account for this. For example it + * may be 50 which is 1 + 7 queues * 7 SG elements. + */ + sg_entry_cnt = ASC_MAX_SG_LIST - 1; + + /* + * Keep track of remaining number of SG elements that will + * need to be handled from a_isr.c. + */ + scsiq->remain_sg_entry_cnt = + sg_head->entry_cnt - ASC_MAX_SG_LIST; + } else { +#endif /* CC_VERY_LONG_SG_LIST */ + /* + * Set sg_entry_cnt to be the number of SG elements that + * will fit in the allocated SG queues. It is minus 1, because + * the first SG element is handled above. + */ + sg_entry_cnt = sg_head->entry_cnt - 1; +#if CC_VERY_LONG_SG_LIST + } +#endif /* CC_VERY_LONG_SG_LIST */ + if (sg_entry_cnt != 0) { + scsiq->q1.cntl |= QC_SG_HEAD; + q_addr = ASC_QNO_TO_QADDR(q_no); + sg_index = 1; + scsiq->q1.sg_queue_cnt = sg_head->queue_cnt; + scsi_sg_q.sg_head_qp = q_no; + scsi_sg_q.cntl = QCSG_SG_XFER_LIST; + for (i = 0; i < sg_head->queue_cnt; i++) { + scsi_sg_q.seq_no = i + 1; + if (sg_entry_cnt > ASC_SG_LIST_PER_Q) { + sg_list_dwords = (uchar)(ASC_SG_LIST_PER_Q * 2); + sg_entry_cnt -= ASC_SG_LIST_PER_Q; + if (i == 0) { + scsi_sg_q.sg_list_cnt = + ASC_SG_LIST_PER_Q; + scsi_sg_q.sg_cur_list_cnt = + ASC_SG_LIST_PER_Q; + } else { + scsi_sg_q.sg_list_cnt = + ASC_SG_LIST_PER_Q - 1; + scsi_sg_q.sg_cur_list_cnt = + ASC_SG_LIST_PER_Q - 1; + } + } else { +#if CC_VERY_LONG_SG_LIST + /* + * This is the last SG queue in the list of + * allocated SG queues. If there are more + * SG elements than will fit in the allocated + * queues, then set the QCSG_SG_XFER_MORE flag. + */ + if (sg_head->entry_cnt > ASC_MAX_SG_LIST) { + scsi_sg_q.cntl |= QCSG_SG_XFER_MORE; + } else { +#endif /* CC_VERY_LONG_SG_LIST */ + scsi_sg_q.cntl |= QCSG_SG_XFER_END; +#if CC_VERY_LONG_SG_LIST + } +#endif /* CC_VERY_LONG_SG_LIST */ + sg_list_dwords = sg_entry_cnt << 1; + if (i == 0) { + scsi_sg_q.sg_list_cnt = sg_entry_cnt; + scsi_sg_q.sg_cur_list_cnt = + sg_entry_cnt; + } else { + scsi_sg_q.sg_list_cnt = + sg_entry_cnt - 1; + scsi_sg_q.sg_cur_list_cnt = + sg_entry_cnt - 1; + } + sg_entry_cnt = 0; + } + next_qp = AscReadLramByte(iop_base, + (ushort)(q_addr + + ASC_SCSIQ_B_FWD)); + scsi_sg_q.q_no = next_qp; + q_addr = ASC_QNO_TO_QADDR(next_qp); + AscMemWordCopyPtrToLram(iop_base, + q_addr + ASC_SCSIQ_SGHD_CPY_BEG, + (uchar *)&scsi_sg_q, + sizeof(ASC_SG_LIST_Q) >> 1); + AscMemDWordCopyPtrToLram(iop_base, + q_addr + ASC_SGQ_LIST_BEG, + (uchar *)&sg_head-> + sg_list[sg_index], + sg_list_dwords); + sg_index += ASC_SG_LIST_PER_Q; + scsiq->next_sg_index = sg_index; + } + } else { + scsiq->q1.cntl &= ~QC_SG_HEAD; + } + sta = AscPutReadyQueue(asc_dvc, scsiq, q_no); + scsiq->q1.data_addr = saved_data_addr; + scsiq->q1.data_cnt = saved_data_cnt; + return (sta); +} + +static int +AscSendScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar n_q_required) +{ + PortAddr iop_base; + uchar free_q_head; + uchar next_qp; + uchar tid_no; + uchar target_ix; + int sta; + + iop_base = asc_dvc->iop_base; + target_ix = scsiq->q2.target_ix; + tid_no = ASC_TIX_TO_TID(target_ix); + sta = 0; + free_q_head = (uchar)AscGetVarFreeQHead(iop_base); + if (n_q_required > 1) { + next_qp = AscAllocMultipleFreeQueue(iop_base, free_q_head, + (uchar)n_q_required); + if (next_qp != ASC_QLINK_END) { + asc_dvc->last_q_shortage = 0; + scsiq->sg_head->queue_cnt = n_q_required - 1; + scsiq->q1.q_no = free_q_head; + sta = AscPutReadySgListQueue(asc_dvc, scsiq, + free_q_head); + } + } else if (n_q_required == 1) { + next_qp = AscAllocFreeQueue(iop_base, free_q_head); + if (next_qp != ASC_QLINK_END) { + scsiq->q1.q_no = free_q_head; + sta = AscPutReadyQueue(asc_dvc, scsiq, free_q_head); + } + } + if (sta == 1) { + AscPutVarFreeQHead(iop_base, next_qp); + asc_dvc->cur_total_qng += n_q_required; + asc_dvc->cur_dvc_qng[tid_no]++; + } + return sta; +} + +#define ASC_SYN_OFFSET_ONE_DISABLE_LIST 16 +static uchar _syn_offset_one_disable_cmd[ASC_SYN_OFFSET_ONE_DISABLE_LIST] = { + INQUIRY, + REQUEST_SENSE, + READ_CAPACITY, + READ_TOC, + MODE_SELECT, + MODE_SENSE, + MODE_SELECT_10, + MODE_SENSE_10, + 0xFF, + 0xFF, + 0xFF, + 0xFF, + 0xFF, + 0xFF, + 0xFF, + 0xFF +}; + +static int AscExeScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq) +{ + PortAddr iop_base; + int sta; + int n_q_required; + int disable_syn_offset_one_fix; + int i; + ASC_PADDR addr; + ushort sg_entry_cnt = 0; + ushort sg_entry_cnt_minus_one = 0; + uchar target_ix; + uchar tid_no; + uchar sdtr_data; + uchar extra_bytes; + uchar scsi_cmd; + uchar disable_cmd; + ASC_SG_HEAD *sg_head; + ASC_DCNT data_cnt; + + iop_base = asc_dvc->iop_base; + sg_head = scsiq->sg_head; + if (asc_dvc->err_code != 0) + return (ERR); + scsiq->q1.q_no = 0; + if ((scsiq->q2.tag_code & ASC_TAG_FLAG_EXTRA_BYTES) == 0) { + scsiq->q1.extra_bytes = 0; + } + sta = 0; + target_ix = scsiq->q2.target_ix; + tid_no = ASC_TIX_TO_TID(target_ix); + n_q_required = 1; + if (scsiq->cdbptr[0] == REQUEST_SENSE) { + if ((asc_dvc->init_sdtr & scsiq->q1.target_id) != 0) { + asc_dvc->sdtr_done &= ~scsiq->q1.target_id; + sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no); + AscMsgOutSDTR(asc_dvc, + asc_dvc-> + sdtr_period_tbl[(sdtr_data >> 4) & + (uchar)(asc_dvc-> + max_sdtr_index - + 1)], + (uchar)(sdtr_data & (uchar) + ASC_SYN_MAX_OFFSET)); + scsiq->q1.cntl |= (QC_MSG_OUT | QC_URGENT); + } + } + if (asc_dvc->in_critical_cnt != 0) { + AscSetLibErrorCode(asc_dvc, ASCQ_ERR_CRITICAL_RE_ENTRY); + return (ERR); + } + asc_dvc->in_critical_cnt++; + if ((scsiq->q1.cntl & QC_SG_HEAD) != 0) { + if ((sg_entry_cnt = sg_head->entry_cnt) == 0) { + asc_dvc->in_critical_cnt--; + return (ERR); + } +#if !CC_VERY_LONG_SG_LIST + if (sg_entry_cnt > ASC_MAX_SG_LIST) { + asc_dvc->in_critical_cnt--; + return (ERR); + } +#endif /* !CC_VERY_LONG_SG_LIST */ + if (sg_entry_cnt == 1) { + scsiq->q1.data_addr = + (ADV_PADDR)sg_head->sg_list[0].addr; + scsiq->q1.data_cnt = + (ADV_DCNT)sg_head->sg_list[0].bytes; + scsiq->q1.cntl &= ~(QC_SG_HEAD | QC_SG_SWAP_QUEUE); + } + sg_entry_cnt_minus_one = sg_entry_cnt - 1; + } + scsi_cmd = scsiq->cdbptr[0]; + disable_syn_offset_one_fix = FALSE; + if ((asc_dvc->pci_fix_asyn_xfer & scsiq->q1.target_id) && + !(asc_dvc->pci_fix_asyn_xfer_always & scsiq->q1.target_id)) { + if (scsiq->q1.cntl & QC_SG_HEAD) { + data_cnt = 0; + for (i = 0; i < sg_entry_cnt; i++) { + data_cnt += + (ADV_DCNT)le32_to_cpu(sg_head->sg_list[i]. + bytes); + } + } else { + data_cnt = le32_to_cpu(scsiq->q1.data_cnt); + } + if (data_cnt != 0UL) { + if (data_cnt < 512UL) { + disable_syn_offset_one_fix = TRUE; + } else { + for (i = 0; i < ASC_SYN_OFFSET_ONE_DISABLE_LIST; + i++) { + disable_cmd = + _syn_offset_one_disable_cmd[i]; + if (disable_cmd == 0xFF) { + break; + } + if (scsi_cmd == disable_cmd) { + disable_syn_offset_one_fix = + TRUE; + break; + } + } + } + } + } + if (disable_syn_offset_one_fix) { + scsiq->q2.tag_code &= ~MSG_SIMPLE_TAG; + scsiq->q2.tag_code |= (ASC_TAG_FLAG_DISABLE_ASYN_USE_SYN_FIX | + ASC_TAG_FLAG_DISABLE_DISCONNECT); + } else { + scsiq->q2.tag_code &= 0x27; + } + if ((scsiq->q1.cntl & QC_SG_HEAD) != 0) { + if (asc_dvc->bug_fix_cntl) { + if (asc_dvc->bug_fix_cntl & ASC_BUG_FIX_IF_NOT_DWB) { + if ((scsi_cmd == READ_6) || + (scsi_cmd == READ_10)) { + addr = + (ADV_PADDR)le32_to_cpu(sg_head-> + sg_list + [sg_entry_cnt_minus_one]. + addr) + + (ADV_DCNT)le32_to_cpu(sg_head-> + sg_list + [sg_entry_cnt_minus_one]. + bytes); + extra_bytes = + (uchar)((ushort)addr & 0x0003); + if ((extra_bytes != 0) + && + ((scsiq->q2. + tag_code & + ASC_TAG_FLAG_EXTRA_BYTES) + == 0)) { + scsiq->q2.tag_code |= + ASC_TAG_FLAG_EXTRA_BYTES; + scsiq->q1.extra_bytes = + extra_bytes; + data_cnt = + le32_to_cpu(sg_head-> + sg_list + [sg_entry_cnt_minus_one]. + bytes); + data_cnt -= + (ASC_DCNT) extra_bytes; + sg_head-> + sg_list + [sg_entry_cnt_minus_one]. + bytes = + cpu_to_le32(data_cnt); + } + } + } + } + sg_head->entry_to_copy = sg_head->entry_cnt; +#if CC_VERY_LONG_SG_LIST + /* + * Set the sg_entry_cnt to the maximum possible. The rest of + * the SG elements will be copied when the RISC completes the + * SG elements that fit and halts. + */ + if (sg_entry_cnt > ASC_MAX_SG_LIST) { + sg_entry_cnt = ASC_MAX_SG_LIST; + } +#endif /* CC_VERY_LONG_SG_LIST */ + n_q_required = AscSgListToQueue(sg_entry_cnt); + if ((AscGetNumOfFreeQueue(asc_dvc, target_ix, n_q_required) >= + (uint) n_q_required) + || ((scsiq->q1.cntl & QC_URGENT) != 0)) { + if ((sta = + AscSendScsiQueue(asc_dvc, scsiq, + n_q_required)) == 1) { + asc_dvc->in_critical_cnt--; + return (sta); + } + } + } else { + if (asc_dvc->bug_fix_cntl) { + if (asc_dvc->bug_fix_cntl & ASC_BUG_FIX_IF_NOT_DWB) { + if ((scsi_cmd == READ_6) || + (scsi_cmd == READ_10)) { + addr = + le32_to_cpu(scsiq->q1.data_addr) + + le32_to_cpu(scsiq->q1.data_cnt); + extra_bytes = + (uchar)((ushort)addr & 0x0003); + if ((extra_bytes != 0) + && + ((scsiq->q2. + tag_code & + ASC_TAG_FLAG_EXTRA_BYTES) + == 0)) { + data_cnt = + le32_to_cpu(scsiq->q1. + data_cnt); + if (((ushort)data_cnt & 0x01FF) + == 0) { + scsiq->q2.tag_code |= + ASC_TAG_FLAG_EXTRA_BYTES; + data_cnt -= (ASC_DCNT) + extra_bytes; + scsiq->q1.data_cnt = + cpu_to_le32 + (data_cnt); + scsiq->q1.extra_bytes = + extra_bytes; + } + } + } + } + } + n_q_required = 1; + if ((AscGetNumOfFreeQueue(asc_dvc, target_ix, 1) >= 1) || + ((scsiq->q1.cntl & QC_URGENT) != 0)) { + if ((sta = AscSendScsiQueue(asc_dvc, scsiq, + n_q_required)) == 1) { + asc_dvc->in_critical_cnt--; + return (sta); + } + } + } + asc_dvc->in_critical_cnt--; + return (sta); +} + +/* + * AdvExeScsiQueue() - Send a request to the RISC microcode program. + * + * Allocate a carrier structure, point the carrier to the ADV_SCSI_REQ_Q, + * add the carrier to the ICQ (Initiator Command Queue), and tickle the + * RISC to notify it a new command is ready to be executed. + * + * If 'done_status' is not set to QD_DO_RETRY, then 'error_retry' will be + * set to SCSI_MAX_RETRY. + * + * Multi-byte fields in the ASC_SCSI_REQ_Q that are used by the microcode + * for DMA addresses or math operations are byte swapped to little-endian + * order. + * + * Return: + * ADV_SUCCESS(1) - The request was successfully queued. + * ADV_BUSY(0) - Resource unavailable; Retry again after pending + * request completes. + * ADV_ERROR(-1) - Invalid ADV_SCSI_REQ_Q request structure + * host IC error. + */ +static int AdvExeScsiQueue(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq) +{ + AdvPortAddr iop_base; + ADV_DCNT req_size; + ADV_PADDR req_paddr; + ADV_CARR_T *new_carrp; + + /* + * The ADV_SCSI_REQ_Q 'target_id' field should never exceed ADV_MAX_TID. + */ + if (scsiq->target_id > ADV_MAX_TID) { + scsiq->host_status = QHSTA_M_INVALID_DEVICE; + scsiq->done_status = QD_WITH_ERROR; + return ADV_ERROR; + } + + iop_base = asc_dvc->iop_base; + + /* + * Allocate a carrier ensuring at least one carrier always + * remains on the freelist and initialize fields. + */ + if ((new_carrp = asc_dvc->carr_freelist) == NULL) { + return ADV_BUSY; + } + asc_dvc->carr_freelist = (ADV_CARR_T *) + ADV_U32_TO_VADDR(le32_to_cpu(new_carrp->next_vpa)); + asc_dvc->carr_pending_cnt++; + + /* + * Set the carrier to be a stopper by setting 'next_vpa' + * to the stopper value. The current stopper will be changed + * below to point to the new stopper. + */ + new_carrp->next_vpa = cpu_to_le32(ASC_CQ_STOPPER); + + /* + * Clear the ADV_SCSI_REQ_Q done flag. + */ + scsiq->a_flag &= ~ADV_SCSIQ_DONE; + + req_size = sizeof(ADV_SCSI_REQ_Q); + req_paddr = DvcGetPhyAddr(asc_dvc, scsiq, (uchar *)scsiq, + (ADV_SDCNT *)&req_size, ADV_IS_SCSIQ_FLAG); + + BUG_ON(req_paddr & 31); + BUG_ON(req_size < sizeof(ADV_SCSI_REQ_Q)); + + /* Wait for assertion before making little-endian */ + req_paddr = cpu_to_le32(req_paddr); + + /* Save virtual and physical address of ADV_SCSI_REQ_Q and carrier. */ + scsiq->scsiq_ptr = cpu_to_le32(ADV_VADDR_TO_U32(scsiq)); + scsiq->scsiq_rptr = req_paddr; + + scsiq->carr_va = cpu_to_le32(ADV_VADDR_TO_U32(asc_dvc->icq_sp)); + /* + * Every ADV_CARR_T.carr_pa is byte swapped to little-endian + * order during initialization. + */ + scsiq->carr_pa = asc_dvc->icq_sp->carr_pa; + + /* + * Use the current stopper to send the ADV_SCSI_REQ_Q command to + * the microcode. The newly allocated stopper will become the new + * stopper. + */ + asc_dvc->icq_sp->areq_vpa = req_paddr; + + /* + * Set the 'next_vpa' pointer for the old stopper to be the + * physical address of the new stopper. The RISC can only + * follow physical addresses. + */ + asc_dvc->icq_sp->next_vpa = new_carrp->carr_pa; + + /* + * Set the host adapter stopper pointer to point to the new carrier. + */ + asc_dvc->icq_sp = new_carrp; + + if (asc_dvc->chip_type == ADV_CHIP_ASC3550 || + asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { + /* + * Tickle the RISC to tell it to read its Command Queue Head pointer. + */ + AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_A); + if (asc_dvc->chip_type == ADV_CHIP_ASC3550) { + /* + * Clear the tickle value. In the ASC-3550 the RISC flag + * command 'clr_tickle_a' does not work unless the host + * value is cleared. + */ + AdvWriteByteRegister(iop_base, IOPB_TICKLE, + ADV_TICKLE_NOP); + } + } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { + /* + * Notify the RISC a carrier is ready by writing the physical + * address of the new carrier stopper to the COMMA register. + */ + AdvWriteDWordRegister(iop_base, IOPDW_COMMA, + le32_to_cpu(new_carrp->carr_pa)); + } + + return ADV_SUCCESS; +} + +/* + * Execute a single 'Scsi_Cmnd'. + * + * The function 'done' is called when the request has been completed. + * + * Scsi_Cmnd: + * + * host - board controlling device + * device - device to send command + * target - target of device + * lun - lun of device + * cmd_len - length of SCSI CDB + * cmnd - buffer for SCSI 8, 10, or 12 byte CDB + * use_sg - if non-zero indicates scatter-gather request with use_sg elements + * + * if (use_sg == 0) { + * request_buffer - buffer address for request + * request_bufflen - length of request buffer + * } else { + * request_buffer - pointer to scatterlist structure + * } + * + * sense_buffer - sense command buffer + * + * result (4 bytes of an int): + * Byte Meaning + * 0 SCSI Status Byte Code + * 1 SCSI One Byte Message Code + * 2 Host Error Code + * 3 Mid-Level Error Code + * + * host driver fields: + * SCp - Scsi_Pointer used for command processing status + * scsi_done - used to save caller's done function + * host_scribble - used for pointer to another struct scsi_cmnd + * + * If this function returns ASC_NOERROR the request will be completed + * from the interrupt handler. + * + * If this function returns ASC_ERROR the host error code has been set, + * and the called must call asc_scsi_done. + * + * If ASC_BUSY is returned the request will be returned to the midlayer + * and re-tried later. + */ +static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) +{ + asc_board_t *boardp; + ASC_DVC_VAR *asc_dvc_varp; + ADV_DVC_VAR *adv_dvc_varp; + ADV_SCSI_REQ_Q *adv_scsiqp; + struct scsi_device *device; + int ret; + + ASC_DBG2(1, "asc_execute_scsi_cmnd: scp 0x%lx, done 0x%lx\n", + (ulong)scp, (ulong)scp->scsi_done); + + boardp = ASC_BOARDP(scp->device->host); + device = boardp->device[scp->device->id]; + + if (ASC_NARROW_BOARD(boardp)) { + /* + * Build and execute Narrow Board request. + */ + + asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; + + /* + * Build Asc Library request structure using the + * global structures 'asc_scsi_req' and 'asc_sg_head'. + * + * If an error is returned, then the request has been + * queued on the board done queue. It will be completed + * by the caller. + * + * asc_build_req() can not return ASC_BUSY. + */ + if (asc_build_req(boardp, scp) == ASC_ERROR) { + ASC_STATS(scp->device->host, build_error); + return ASC_ERROR; + } + + switch (ret = AscExeScsiQueue(asc_dvc_varp, &asc_scsi_q)) { + case ASC_NOERROR: + ASC_STATS(scp->device->host, exe_noerror); + /* + * Increment monotonically increasing per device + * successful request counter. Wrapping doesn't matter. + */ + boardp->reqcnt[scp->device->id]++; + ASC_DBG(1, "asc_execute_scsi_cmnd: AscExeScsiQueue(), " + "ASC_NOERROR\n"); + break; + case ASC_BUSY: + ASC_STATS(scp->device->host, exe_busy); + break; + case ASC_ERROR: + ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " + "AscExeScsiQueue() ASC_ERROR, err_code 0x%x\n", + boardp->id, asc_dvc_varp->err_code); + ASC_STATS(scp->device->host, exe_error); + scp->result = HOST_BYTE(DID_ERROR); + break; + default: + ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " + "AscExeScsiQueue() unknown, err_code 0x%x\n", + boardp->id, asc_dvc_varp->err_code); + ASC_STATS(scp->device->host, exe_unknown); + scp->result = HOST_BYTE(DID_ERROR); + break; + } + } else { + /* + * Build and execute Wide Board request. + */ + adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; + + /* + * Build and get a pointer to an Adv Library request structure. + * + * If the request is successfully built then send it below, + * otherwise return with an error. + */ + switch (adv_build_req(boardp, scp, &adv_scsiqp)) { + case ASC_NOERROR: + ASC_DBG(3, "asc_execute_scsi_cmnd: adv_build_req " + "ASC_NOERROR\n"); + break; + case ASC_BUSY: + ASC_DBG(1, "asc_execute_scsi_cmnd: adv_build_req " + "ASC_BUSY\n"); + /* + * The asc_stats fields 'adv_build_noreq' and + * 'adv_build_nosg' count wide board busy conditions. + * They are updated in adv_build_req and + * adv_get_sglist, respectively. + */ + return ASC_BUSY; + case ASC_ERROR: + default: + ASC_DBG(1, "asc_execute_scsi_cmnd: adv_build_req " + "ASC_ERROR\n"); + ASC_STATS(scp->device->host, build_error); + return ASC_ERROR; + } + + switch (ret = AdvExeScsiQueue(adv_dvc_varp, adv_scsiqp)) { + case ASC_NOERROR: + ASC_STATS(scp->device->host, exe_noerror); + /* + * Increment monotonically increasing per device + * successful request counter. Wrapping doesn't matter. + */ + boardp->reqcnt[scp->device->id]++; + ASC_DBG(1, "asc_execute_scsi_cmnd: AdvExeScsiQueue(), " + "ASC_NOERROR\n"); + break; + case ASC_BUSY: + ASC_STATS(scp->device->host, exe_busy); + break; + case ASC_ERROR: + ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " + "AdvExeScsiQueue() ASC_ERROR, err_code 0x%x\n", + boardp->id, adv_dvc_varp->err_code); + ASC_STATS(scp->device->host, exe_error); + scp->result = HOST_BYTE(DID_ERROR); + break; + default: + ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " + "AdvExeScsiQueue() unknown, err_code 0x%x\n", + boardp->id, adv_dvc_varp->err_code); + ASC_STATS(scp->device->host, exe_unknown); + scp->result = HOST_BYTE(DID_ERROR); + break; + } + } + + ASC_DBG(1, "asc_execute_scsi_cmnd: end\n"); + return ret; +} + +/* + * advansys_queuecommand() - interrupt-driven I/O entrypoint. + * + * This function always returns 0. Command return status is saved + * in the 'scp' result field. + */ +static int +advansys_queuecommand(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd *)) +{ + struct Scsi_Host *shost = scp->device->host; + asc_board_t *boardp = ASC_BOARDP(shost); + unsigned long flags; + int asc_res, result = 0; + + ASC_STATS(shost, queuecommand); + scp->scsi_done = done; + + /* + * host_lock taken by mid-level prior to call, but need + * to protect against own ISR + */ + spin_lock_irqsave(&boardp->lock, flags); + asc_res = asc_execute_scsi_cmnd(scp); + spin_unlock_irqrestore(&boardp->lock, flags); + + switch (asc_res) { + case ASC_NOERROR: + break; + case ASC_BUSY: + result = SCSI_MLQUEUE_HOST_BUSY; + break; + case ASC_ERROR: + default: + asc_scsi_done(scp); + break; + } + + return result; +} + +static ushort __devinit AscGetEisaChipCfg(PortAddr iop_base) +{ + PortAddr eisa_cfg_iop = (PortAddr) ASC_GET_EISA_SLOT(iop_base) | + (PortAddr) (ASC_EISA_CFG_IOP_MASK); + return inpw(eisa_cfg_iop); +} + +/* + * Return the BIOS address of the adapter at the specified + * I/O port and with the specified bus type. + */ +static unsigned short __devinit +AscGetChipBiosAddress(PortAddr iop_base, unsigned short bus_type) +{ + unsigned short cfg_lsw; + unsigned short bios_addr; + + /* + * The PCI BIOS is re-located by the motherboard BIOS. Because + * of this the driver can not determine where a PCI BIOS is + * loaded and executes. + */ + if (bus_type & ASC_IS_PCI) + return 0; + + if ((bus_type & ASC_IS_EISA) != 0) { + cfg_lsw = AscGetEisaChipCfg(iop_base); + cfg_lsw &= 0x000F; + bios_addr = ASC_BIOS_MIN_ADDR + cfg_lsw * ASC_BIOS_BANK_SIZE; + return bios_addr; + } + + cfg_lsw = AscGetChipCfgLsw(iop_base); + + /* + * ISA PnP uses the top bit as the 32K BIOS flag + */ + if (bus_type == ASC_IS_ISAPNP) + cfg_lsw &= 0x7FFF; + bios_addr = ASC_BIOS_MIN_ADDR + (cfg_lsw >> 12) * ASC_BIOS_BANK_SIZE; + return bios_addr; +} + +static uchar __devinit AscSetChipScsiID(PortAddr iop_base, uchar new_host_id) +{ + ushort cfg_lsw; + + if (AscGetChipScsiID(iop_base) == new_host_id) { + return (new_host_id); + } + cfg_lsw = AscGetChipCfgLsw(iop_base); + cfg_lsw &= 0xF8FF; + cfg_lsw |= (ushort)((new_host_id & ASC_MAX_TID) << 8); + AscSetChipCfgLsw(iop_base, cfg_lsw); + return (AscGetChipScsiID(iop_base)); +} + +static unsigned char __devinit AscGetChipScsiCtrl(PortAddr iop_base) +{ + unsigned char sc; + + AscSetBank(iop_base, 1); + sc = inp(iop_base + IOP_REG_SC); + AscSetBank(iop_base, 0); + return sc; +} + +static unsigned char __devinit +AscGetChipVersion(PortAddr iop_base, unsigned short bus_type) +{ + if (bus_type & ASC_IS_EISA) { + PortAddr eisa_iop; + unsigned char revision; + eisa_iop = (PortAddr) ASC_GET_EISA_SLOT(iop_base) | + (PortAddr) ASC_EISA_REV_IOP_MASK; + revision = inp(eisa_iop); + return ASC_CHIP_MIN_VER_EISA - 1 + revision; + } + return AscGetChipVerNo(iop_base); +} + +static void __devinit AscToggleIRQAct(PortAddr iop_base) +{ + AscSetChipStatus(iop_base, CIW_IRQ_ACT); + AscSetChipStatus(iop_base, 0); + return; +} + +static uchar __devinit AscGetChipIRQ(PortAddr iop_base, ushort bus_type) +{ + ushort cfg_lsw; + uchar chip_irq; + + if ((bus_type & ASC_IS_EISA) != 0) { + cfg_lsw = AscGetEisaChipCfg(iop_base); + chip_irq = (uchar)(((cfg_lsw >> 8) & 0x07) + 10); + if ((chip_irq == 13) || (chip_irq > 15)) { + return (0); + } + return (chip_irq); + } + if ((bus_type & ASC_IS_VL) != 0) { + cfg_lsw = AscGetChipCfgLsw(iop_base); + chip_irq = (uchar)(((cfg_lsw >> 2) & 0x07)); + if ((chip_irq == 0) || (chip_irq == 4) || (chip_irq == 7)) { + return (0); + } + return ((uchar)(chip_irq + (ASC_MIN_IRQ_NO - 1))); + } + cfg_lsw = AscGetChipCfgLsw(iop_base); + chip_irq = (uchar)(((cfg_lsw >> 2) & 0x03)); + if (chip_irq == 3) + chip_irq += (uchar)2; + return ((uchar)(chip_irq + ASC_MIN_IRQ_NO)); +} + +static uchar __devinit +AscSetChipIRQ(PortAddr iop_base, uchar irq_no, ushort bus_type) +{ + ushort cfg_lsw; + + if ((bus_type & ASC_IS_VL) != 0) { + if (irq_no != 0) { + if ((irq_no < ASC_MIN_IRQ_NO) + || (irq_no > ASC_MAX_IRQ_NO)) { + irq_no = 0; + } else { + irq_no -= (uchar)((ASC_MIN_IRQ_NO - 1)); + } + } + cfg_lsw = (ushort)(AscGetChipCfgLsw(iop_base) & 0xFFE3); + cfg_lsw |= (ushort)0x0010; + AscSetChipCfgLsw(iop_base, cfg_lsw); + AscToggleIRQAct(iop_base); + cfg_lsw = (ushort)(AscGetChipCfgLsw(iop_base) & 0xFFE0); + cfg_lsw |= (ushort)((irq_no & 0x07) << 2); + AscSetChipCfgLsw(iop_base, cfg_lsw); + AscToggleIRQAct(iop_base); + return (AscGetChipIRQ(iop_base, bus_type)); + } + if ((bus_type & (ASC_IS_ISA)) != 0) { + if (irq_no == 15) + irq_no -= (uchar)2; + irq_no -= (uchar)ASC_MIN_IRQ_NO; + cfg_lsw = (ushort)(AscGetChipCfgLsw(iop_base) & 0xFFF3); + cfg_lsw |= (ushort)((irq_no & 0x03) << 2); + AscSetChipCfgLsw(iop_base, cfg_lsw); + return (AscGetChipIRQ(iop_base, bus_type)); + } + return (0); +} + +#ifdef CONFIG_ISA +static void __devinit AscEnableIsaDma(uchar dma_channel) +{ + if (dma_channel < 4) { + outp(0x000B, (ushort)(0xC0 | dma_channel)); + outp(0x000A, dma_channel); + } else if (dma_channel < 8) { + outp(0x00D6, (ushort)(0xC0 | (dma_channel - 4))); + outp(0x00D4, (ushort)(dma_channel - 4)); + } + return; +} +#endif /* CONFIG_ISA */ + +static int AscStopQueueExe(PortAddr iop_base) +{ + int count = 0; + + if (AscReadLramByte(iop_base, ASCV_STOP_CODE_B) == 0) { + AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, + ASC_STOP_REQ_RISC_STOP); + do { + if (AscReadLramByte(iop_base, ASCV_STOP_CODE_B) & + ASC_STOP_ACK_RISC_STOP) { + return (1); + } + mdelay(100); + } while (count++ < 20); + } + return (0); +} + +static ASC_DCNT __devinit AscGetMaxDmaCount(ushort bus_type) +{ + if (bus_type & ASC_IS_ISA) + return ASC_MAX_ISA_DMA_COUNT; + else if (bus_type & (ASC_IS_EISA | ASC_IS_VL)) + return ASC_MAX_VL_DMA_COUNT; + return ASC_MAX_PCI_DMA_COUNT; +} + +#ifdef CONFIG_ISA +static ushort __devinit AscGetIsaDmaChannel(PortAddr iop_base) +{ + ushort channel; + + channel = AscGetChipCfgLsw(iop_base) & 0x0003; + if (channel == 0x03) + return (0); + else if (channel == 0x00) + return (7); + return (channel + 4); +} + +static ushort __devinit AscSetIsaDmaChannel(PortAddr iop_base, ushort dma_channel) +{ + ushort cfg_lsw; + uchar value; + + if ((dma_channel >= 5) && (dma_channel <= 7)) { + if (dma_channel == 7) + value = 0x00; + else + value = dma_channel - 4; + cfg_lsw = AscGetChipCfgLsw(iop_base) & 0xFFFC; + cfg_lsw |= value; + AscSetChipCfgLsw(iop_base, cfg_lsw); + return (AscGetIsaDmaChannel(iop_base)); + } + return 0; +} + +static uchar __devinit AscGetIsaDmaSpeed(PortAddr iop_base) +{ + uchar speed_value; + + AscSetBank(iop_base, 1); + speed_value = AscReadChipDmaSpeed(iop_base); + speed_value &= 0x07; + AscSetBank(iop_base, 0); + return speed_value; +} + +static uchar __devinit AscSetIsaDmaSpeed(PortAddr iop_base, uchar speed_value) +{ + speed_value &= 0x07; + AscSetBank(iop_base, 1); + AscWriteChipDmaSpeed(iop_base, speed_value); + AscSetBank(iop_base, 0); + return AscGetIsaDmaSpeed(iop_base); +} +#endif /* CONFIG_ISA */ + +static ushort __devinit AscInitAscDvcVar(ASC_DVC_VAR *asc_dvc) +{ + int i; + PortAddr iop_base; + ushort warn_code; + uchar chip_version; + + iop_base = asc_dvc->iop_base; + warn_code = 0; + asc_dvc->err_code = 0; + if ((asc_dvc->bus_type & + (ASC_IS_ISA | ASC_IS_PCI | ASC_IS_EISA | ASC_IS_VL)) == 0) { + asc_dvc->err_code |= ASC_IERR_NO_BUS_TYPE; + } + AscSetChipControl(iop_base, CC_HALT); + AscSetChipStatus(iop_base, 0); + asc_dvc->bug_fix_cntl = 0; + asc_dvc->pci_fix_asyn_xfer = 0; + asc_dvc->pci_fix_asyn_xfer_always = 0; + /* asc_dvc->init_state initalized in AscInitGetConfig(). */ + asc_dvc->sdtr_done = 0; + asc_dvc->cur_total_qng = 0; + asc_dvc->is_in_int = 0; + asc_dvc->in_critical_cnt = 0; + asc_dvc->last_q_shortage = 0; + asc_dvc->use_tagged_qng = 0; + asc_dvc->no_scam = 0; + asc_dvc->unit_not_ready = 0; + asc_dvc->queue_full_or_busy = 0; + asc_dvc->redo_scam = 0; + asc_dvc->res2 = 0; + asc_dvc->host_init_sdtr_index = 0; + asc_dvc->cfg->can_tagged_qng = 0; + asc_dvc->cfg->cmd_qng_enabled = 0; + asc_dvc->dvc_cntl = ASC_DEF_DVC_CNTL; + asc_dvc->init_sdtr = 0; + asc_dvc->max_total_qng = ASC_DEF_MAX_TOTAL_QNG; + asc_dvc->scsi_reset_wait = 3; + asc_dvc->start_motor = ASC_SCSI_WIDTH_BIT_SET; + asc_dvc->max_dma_count = AscGetMaxDmaCount(asc_dvc->bus_type); + asc_dvc->cfg->sdtr_enable = ASC_SCSI_WIDTH_BIT_SET; + asc_dvc->cfg->disc_enable = ASC_SCSI_WIDTH_BIT_SET; + asc_dvc->cfg->chip_scsi_id = ASC_DEF_CHIP_SCSI_ID; + asc_dvc->cfg->lib_serial_no = ASC_LIB_SERIAL_NUMBER; + asc_dvc->cfg->lib_version = (ASC_LIB_VERSION_MAJOR << 8) | + ASC_LIB_VERSION_MINOR; + chip_version = AscGetChipVersion(iop_base, asc_dvc->bus_type); + asc_dvc->cfg->chip_version = chip_version; + asc_dvc->sdtr_period_tbl[0] = SYN_XFER_NS_0; + asc_dvc->sdtr_period_tbl[1] = SYN_XFER_NS_1; + asc_dvc->sdtr_period_tbl[2] = SYN_XFER_NS_2; + asc_dvc->sdtr_period_tbl[3] = SYN_XFER_NS_3; + asc_dvc->sdtr_period_tbl[4] = SYN_XFER_NS_4; + asc_dvc->sdtr_period_tbl[5] = SYN_XFER_NS_5; + asc_dvc->sdtr_period_tbl[6] = SYN_XFER_NS_6; + asc_dvc->sdtr_period_tbl[7] = SYN_XFER_NS_7; + asc_dvc->max_sdtr_index = 7; + if ((asc_dvc->bus_type & ASC_IS_PCI) && + (chip_version >= ASC_CHIP_VER_PCI_ULTRA_3150)) { + asc_dvc->bus_type = ASC_IS_PCI_ULTRA; + asc_dvc->sdtr_period_tbl[0] = SYN_ULTRA_XFER_NS_0; + asc_dvc->sdtr_period_tbl[1] = SYN_ULTRA_XFER_NS_1; + asc_dvc->sdtr_period_tbl[2] = SYN_ULTRA_XFER_NS_2; + asc_dvc->sdtr_period_tbl[3] = SYN_ULTRA_XFER_NS_3; + asc_dvc->sdtr_period_tbl[4] = SYN_ULTRA_XFER_NS_4; + asc_dvc->sdtr_period_tbl[5] = SYN_ULTRA_XFER_NS_5; + asc_dvc->sdtr_period_tbl[6] = SYN_ULTRA_XFER_NS_6; + asc_dvc->sdtr_period_tbl[7] = SYN_ULTRA_XFER_NS_7; + asc_dvc->sdtr_period_tbl[8] = SYN_ULTRA_XFER_NS_8; + asc_dvc->sdtr_period_tbl[9] = SYN_ULTRA_XFER_NS_9; + asc_dvc->sdtr_period_tbl[10] = SYN_ULTRA_XFER_NS_10; + asc_dvc->sdtr_period_tbl[11] = SYN_ULTRA_XFER_NS_11; + asc_dvc->sdtr_period_tbl[12] = SYN_ULTRA_XFER_NS_12; + asc_dvc->sdtr_period_tbl[13] = SYN_ULTRA_XFER_NS_13; + asc_dvc->sdtr_period_tbl[14] = SYN_ULTRA_XFER_NS_14; + asc_dvc->sdtr_period_tbl[15] = SYN_ULTRA_XFER_NS_15; + asc_dvc->max_sdtr_index = 15; + if (chip_version == ASC_CHIP_VER_PCI_ULTRA_3150) { + AscSetExtraControl(iop_base, + (SEC_ACTIVE_NEGATE | SEC_SLEW_RATE)); + } else if (chip_version >= ASC_CHIP_VER_PCI_ULTRA_3050) { + AscSetExtraControl(iop_base, + (SEC_ACTIVE_NEGATE | + SEC_ENABLE_FILTER)); + } + } + if (asc_dvc->bus_type == ASC_IS_PCI) { + AscSetExtraControl(iop_base, + (SEC_ACTIVE_NEGATE | SEC_SLEW_RATE)); + } + + asc_dvc->cfg->isa_dma_speed = ASC_DEF_ISA_DMA_SPEED; +#ifdef CONFIG_ISA + if ((asc_dvc->bus_type & ASC_IS_ISA) != 0) { + if (chip_version >= ASC_CHIP_MIN_VER_ISA_PNP) { + AscSetChipIFC(iop_base, IFC_INIT_DEFAULT); + asc_dvc->bus_type = ASC_IS_ISAPNP; + } + asc_dvc->cfg->isa_dma_channel = + (uchar)AscGetIsaDmaChannel(iop_base); + } +#endif /* CONFIG_ISA */ + for (i = 0; i <= ASC_MAX_TID; i++) { + asc_dvc->cur_dvc_qng[i] = 0; + asc_dvc->max_dvc_qng[i] = ASC_MAX_SCSI1_QNG; + asc_dvc->scsiq_busy_head[i] = (ASC_SCSI_Q *)0L; + asc_dvc->scsiq_busy_tail[i] = (ASC_SCSI_Q *)0L; + asc_dvc->cfg->max_tag_qng[i] = ASC_MAX_INRAM_TAG_QNG; + } + return warn_code; +} + +static int __devinit AscWriteEEPCmdReg(PortAddr iop_base, uchar cmd_reg) +{ + int retry; + + for (retry = 0; retry < ASC_EEP_MAX_RETRY; retry++) { + unsigned char read_back; + AscSetChipEEPCmd(iop_base, cmd_reg); + mdelay(1); + read_back = AscGetChipEEPCmd(iop_base); + if (read_back == cmd_reg) + return 1; + } + return 0; +} + +static void __devinit AscWaitEEPRead(void) +{ + mdelay(1); +} + +static ushort __devinit AscReadEEPWord(PortAddr iop_base, uchar addr) +{ + ushort read_wval; + uchar cmd_reg; + + AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_DISABLE); + AscWaitEEPRead(); + cmd_reg = addr | ASC_EEP_CMD_READ; + AscWriteEEPCmdReg(iop_base, cmd_reg); + AscWaitEEPRead(); + read_wval = AscGetChipEEPData(iop_base); + AscWaitEEPRead(); + return read_wval; +} + +static ushort __devinit +AscGetEEPConfig(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, ushort bus_type) +{ + ushort wval; + ushort sum; + ushort *wbuf; + int cfg_beg; + int cfg_end; + int uchar_end_in_config = ASC_EEP_MAX_DVC_ADDR - 2; + int s_addr; + + wbuf = (ushort *)cfg_buf; + sum = 0; + /* Read two config words; Byte-swapping done by AscReadEEPWord(). */ + for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) { + *wbuf = AscReadEEPWord(iop_base, (uchar)s_addr); + sum += *wbuf; + } + if (bus_type & ASC_IS_VL) { + cfg_beg = ASC_EEP_DVC_CFG_BEG_VL; + cfg_end = ASC_EEP_MAX_DVC_ADDR_VL; + } else { + cfg_beg = ASC_EEP_DVC_CFG_BEG; + cfg_end = ASC_EEP_MAX_DVC_ADDR; + } + for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) { + wval = AscReadEEPWord(iop_base, (uchar)s_addr); + if (s_addr <= uchar_end_in_config) { + /* + * Swap all char fields - must unswap bytes already swapped + * by AscReadEEPWord(). + */ + *wbuf = le16_to_cpu(wval); + } else { + /* Don't swap word field at the end - cntl field. */ + *wbuf = wval; + } + sum += wval; /* Checksum treats all EEPROM data as words. */ + } + /* + * Read the checksum word which will be compared against 'sum' + * by the caller. Word field already swapped. + */ + *wbuf = AscReadEEPWord(iop_base, (uchar)s_addr); + return sum; +} + +static int __devinit AscTestExternalLram(ASC_DVC_VAR *asc_dvc) +{ + PortAddr iop_base; + ushort q_addr; + ushort saved_word; + int sta; + + iop_base = asc_dvc->iop_base; + sta = 0; + q_addr = ASC_QNO_TO_QADDR(241); + saved_word = AscReadLramWord(iop_base, q_addr); + AscSetChipLramAddr(iop_base, q_addr); + AscSetChipLramData(iop_base, 0x55AA); + mdelay(10); + AscSetChipLramAddr(iop_base, q_addr); + if (AscGetChipLramData(iop_base) == 0x55AA) { + sta = 1; + AscWriteLramWord(iop_base, q_addr, saved_word); + } + return (sta); +} + +static void __devinit AscWaitEEPWrite(void) +{ + mdelay(20); + return; +} + +static int __devinit AscWriteEEPDataReg(PortAddr iop_base, ushort data_reg) +{ + ushort read_back; + int retry; + + retry = 0; + while (TRUE) { + AscSetChipEEPData(iop_base, data_reg); + mdelay(1); + read_back = AscGetChipEEPData(iop_base); + if (read_back == data_reg) { + return (1); + } + if (retry++ > ASC_EEP_MAX_RETRY) { + return (0); + } + } +} + +static ushort __devinit +AscWriteEEPWord(PortAddr iop_base, uchar addr, ushort word_val) +{ + ushort read_wval; + + read_wval = AscReadEEPWord(iop_base, addr); + if (read_wval != word_val) { + AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_ABLE); + AscWaitEEPRead(); + AscWriteEEPDataReg(iop_base, word_val); + AscWaitEEPRead(); + AscWriteEEPCmdReg(iop_base, + (uchar)((uchar)ASC_EEP_CMD_WRITE | addr)); + AscWaitEEPWrite(); + AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_DISABLE); + AscWaitEEPRead(); + return (AscReadEEPWord(iop_base, addr)); + } + return (read_wval); +} + +static int __devinit +AscSetEEPConfigOnce(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, ushort bus_type) +{ + int n_error; + ushort *wbuf; + ushort word; + ushort sum; + int s_addr; + int cfg_beg; + int cfg_end; + int uchar_end_in_config = ASC_EEP_MAX_DVC_ADDR - 2; + + wbuf = (ushort *)cfg_buf; + n_error = 0; + sum = 0; + /* Write two config words; AscWriteEEPWord() will swap bytes. */ + for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) { + sum += *wbuf; + if (*wbuf != AscWriteEEPWord(iop_base, (uchar)s_addr, *wbuf)) { + n_error++; + } + } + if (bus_type & ASC_IS_VL) { + cfg_beg = ASC_EEP_DVC_CFG_BEG_VL; + cfg_end = ASC_EEP_MAX_DVC_ADDR_VL; + } else { + cfg_beg = ASC_EEP_DVC_CFG_BEG; + cfg_end = ASC_EEP_MAX_DVC_ADDR; + } + for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) { + if (s_addr <= uchar_end_in_config) { + /* + * This is a char field. Swap char fields before they are + * swapped again by AscWriteEEPWord(). + */ + word = cpu_to_le16(*wbuf); + if (word != + AscWriteEEPWord(iop_base, (uchar)s_addr, word)) { + n_error++; + } + } else { + /* Don't swap word field at the end - cntl field. */ + if (*wbuf != + AscWriteEEPWord(iop_base, (uchar)s_addr, *wbuf)) { + n_error++; + } + } + sum += *wbuf; /* Checksum calculated from word values. */ + } + /* Write checksum word. It will be swapped by AscWriteEEPWord(). */ + *wbuf = sum; + if (sum != AscWriteEEPWord(iop_base, (uchar)s_addr, sum)) { + n_error++; + } + + /* Read EEPROM back again. */ + wbuf = (ushort *)cfg_buf; + /* + * Read two config words; Byte-swapping done by AscReadEEPWord(). + */ + for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) { + if (*wbuf != AscReadEEPWord(iop_base, (uchar)s_addr)) { + n_error++; + } + } + if (bus_type & ASC_IS_VL) { + cfg_beg = ASC_EEP_DVC_CFG_BEG_VL; + cfg_end = ASC_EEP_MAX_DVC_ADDR_VL; + } else { + cfg_beg = ASC_EEP_DVC_CFG_BEG; + cfg_end = ASC_EEP_MAX_DVC_ADDR; + } + for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) { + if (s_addr <= uchar_end_in_config) { + /* + * Swap all char fields. Must unswap bytes already swapped + * by AscReadEEPWord(). + */ + word = + le16_to_cpu(AscReadEEPWord + (iop_base, (uchar)s_addr)); + } else { + /* Don't swap word field at the end - cntl field. */ + word = AscReadEEPWord(iop_base, (uchar)s_addr); + } + if (*wbuf != word) { + n_error++; + } + } + /* Read checksum; Byte swapping not needed. */ + if (AscReadEEPWord(iop_base, (uchar)s_addr) != sum) { + n_error++; + } + return n_error; +} + +static int __devinit +AscSetEEPConfig(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, ushort bus_type) +{ + int retry; + int n_error; + + retry = 0; + while (TRUE) { + if ((n_error = AscSetEEPConfigOnce(iop_base, cfg_buf, + bus_type)) == 0) { + break; + } + if (++retry > ASC_EEP_MAX_RETRY) { + break; + } + } + return n_error; +} + +static ushort __devinit AscInitFromEEP(ASC_DVC_VAR *asc_dvc) +{ + ASCEEP_CONFIG eep_config_buf; + ASCEEP_CONFIG *eep_config; + PortAddr iop_base; + ushort chksum; + ushort warn_code; + ushort cfg_msw, cfg_lsw; + int i; + int write_eep = 0; + + iop_base = asc_dvc->iop_base; + warn_code = 0; + AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0x00FE); + AscStopQueueExe(iop_base); + if ((AscStopChip(iop_base) == FALSE) || + (AscGetChipScsiCtrl(iop_base) != 0)) { + asc_dvc->init_state |= ASC_INIT_RESET_SCSI_DONE; + AscResetChipAndScsiBus(asc_dvc); + mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ + } + if (AscIsChipHalted(iop_base) == FALSE) { + asc_dvc->err_code |= ASC_IERR_START_STOP_CHIP; + return (warn_code); + } + AscSetPCAddr(iop_base, ASC_MCODE_START_ADDR); + if (AscGetPCAddr(iop_base) != ASC_MCODE_START_ADDR) { + asc_dvc->err_code |= ASC_IERR_SET_PC_ADDR; + return (warn_code); + } + eep_config = (ASCEEP_CONFIG *)&eep_config_buf; + cfg_msw = AscGetChipCfgMsw(iop_base); + cfg_lsw = AscGetChipCfgLsw(iop_base); + if ((cfg_msw & ASC_CFG_MSW_CLR_MASK) != 0) { + cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; + warn_code |= ASC_WARN_CFG_MSW_RECOVER; + AscSetChipCfgMsw(iop_base, cfg_msw); + } + chksum = AscGetEEPConfig(iop_base, eep_config, asc_dvc->bus_type); + ASC_DBG1(1, "AscInitFromEEP: chksum 0x%x\n", chksum); + if (chksum == 0) { + chksum = 0xaa55; + } + if (AscGetChipStatus(iop_base) & CSW_AUTO_CONFIG) { + warn_code |= ASC_WARN_AUTO_CONFIG; + if (asc_dvc->cfg->chip_version == 3) { + if (eep_config->cfg_lsw != cfg_lsw) { + warn_code |= ASC_WARN_EEPROM_RECOVER; + eep_config->cfg_lsw = + AscGetChipCfgLsw(iop_base); + } + if (eep_config->cfg_msw != cfg_msw) { + warn_code |= ASC_WARN_EEPROM_RECOVER; + eep_config->cfg_msw = + AscGetChipCfgMsw(iop_base); + } + } + } + eep_config->cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; + eep_config->cfg_lsw |= ASC_CFG0_HOST_INT_ON; + ASC_DBG1(1, "AscInitFromEEP: eep_config->chksum 0x%x\n", + eep_config->chksum); + if (chksum != eep_config->chksum) { + if (AscGetChipVersion(iop_base, asc_dvc->bus_type) == + ASC_CHIP_VER_PCI_ULTRA_3050) { + ASC_DBG(1, + "AscInitFromEEP: chksum error ignored; EEPROM-less board\n"); + eep_config->init_sdtr = 0xFF; + eep_config->disc_enable = 0xFF; + eep_config->start_motor = 0xFF; + eep_config->use_cmd_qng = 0; + eep_config->max_total_qng = 0xF0; + eep_config->max_tag_qng = 0x20; + eep_config->cntl = 0xBFFF; + ASC_EEP_SET_CHIP_ID(eep_config, 7); + eep_config->no_scam = 0; + eep_config->adapter_info[0] = 0; + eep_config->adapter_info[1] = 0; + eep_config->adapter_info[2] = 0; + eep_config->adapter_info[3] = 0; + eep_config->adapter_info[4] = 0; + /* Indicate EEPROM-less board. */ + eep_config->adapter_info[5] = 0xBB; + } else { + ASC_PRINT + ("AscInitFromEEP: EEPROM checksum error; Will try to re-write EEPROM.\n"); + write_eep = 1; + warn_code |= ASC_WARN_EEPROM_CHKSUM; + } + } + asc_dvc->cfg->sdtr_enable = eep_config->init_sdtr; + asc_dvc->cfg->disc_enable = eep_config->disc_enable; + asc_dvc->cfg->cmd_qng_enabled = eep_config->use_cmd_qng; + asc_dvc->cfg->isa_dma_speed = ASC_EEP_GET_DMA_SPD(eep_config); + asc_dvc->start_motor = eep_config->start_motor; + asc_dvc->dvc_cntl = eep_config->cntl; + asc_dvc->no_scam = eep_config->no_scam; + asc_dvc->cfg->adapter_info[0] = eep_config->adapter_info[0]; + asc_dvc->cfg->adapter_info[1] = eep_config->adapter_info[1]; + asc_dvc->cfg->adapter_info[2] = eep_config->adapter_info[2]; + asc_dvc->cfg->adapter_info[3] = eep_config->adapter_info[3]; + asc_dvc->cfg->adapter_info[4] = eep_config->adapter_info[4]; + asc_dvc->cfg->adapter_info[5] = eep_config->adapter_info[5]; + if (!AscTestExternalLram(asc_dvc)) { + if (((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == + ASC_IS_PCI_ULTRA)) { + eep_config->max_total_qng = + ASC_MAX_PCI_ULTRA_INRAM_TOTAL_QNG; + eep_config->max_tag_qng = + ASC_MAX_PCI_ULTRA_INRAM_TAG_QNG; + } else { + eep_config->cfg_msw |= 0x0800; + cfg_msw |= 0x0800; + AscSetChipCfgMsw(iop_base, cfg_msw); + eep_config->max_total_qng = ASC_MAX_PCI_INRAM_TOTAL_QNG; + eep_config->max_tag_qng = ASC_MAX_INRAM_TAG_QNG; + } + } else { + } + if (eep_config->max_total_qng < ASC_MIN_TOTAL_QNG) { + eep_config->max_total_qng = ASC_MIN_TOTAL_QNG; + } + if (eep_config->max_total_qng > ASC_MAX_TOTAL_QNG) { + eep_config->max_total_qng = ASC_MAX_TOTAL_QNG; + } + if (eep_config->max_tag_qng > eep_config->max_total_qng) { + eep_config->max_tag_qng = eep_config->max_total_qng; + } + if (eep_config->max_tag_qng < ASC_MIN_TAG_Q_PER_DVC) { + eep_config->max_tag_qng = ASC_MIN_TAG_Q_PER_DVC; + } + asc_dvc->max_total_qng = eep_config->max_total_qng; + if ((eep_config->use_cmd_qng & eep_config->disc_enable) != + eep_config->use_cmd_qng) { + eep_config->disc_enable = eep_config->use_cmd_qng; + warn_code |= ASC_WARN_CMD_QNG_CONFLICT; + } + if (asc_dvc->bus_type & (ASC_IS_ISA | ASC_IS_VL | ASC_IS_EISA)) { + asc_dvc->irq_no = AscGetChipIRQ(iop_base, asc_dvc->bus_type); + } + ASC_EEP_SET_CHIP_ID(eep_config, + ASC_EEP_GET_CHIP_ID(eep_config) & ASC_MAX_TID); + asc_dvc->cfg->chip_scsi_id = ASC_EEP_GET_CHIP_ID(eep_config); + if (((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == ASC_IS_PCI_ULTRA) && + !(asc_dvc->dvc_cntl & ASC_CNTL_SDTR_ENABLE_ULTRA)) { + asc_dvc->host_init_sdtr_index = ASC_SDTR_ULTRA_PCI_10MB_INDEX; + } + + for (i = 0; i <= ASC_MAX_TID; i++) { + asc_dvc->dos_int13_table[i] = eep_config->dos_int13_table[i]; + asc_dvc->cfg->max_tag_qng[i] = eep_config->max_tag_qng; + asc_dvc->cfg->sdtr_period_offset[i] = + (uchar)(ASC_DEF_SDTR_OFFSET | + (asc_dvc->host_init_sdtr_index << 4)); + } + eep_config->cfg_msw = AscGetChipCfgMsw(iop_base); + if (write_eep) { + if ((i = AscSetEEPConfig(iop_base, eep_config, + asc_dvc->bus_type)) != 0) { + ASC_PRINT1 + ("AscInitFromEEP: Failed to re-write EEPROM with %d errors.\n", + i); + } else { + ASC_PRINT + ("AscInitFromEEP: Successfully re-wrote EEPROM.\n"); + } + } + return (warn_code); +} + +static int __devinit AscInitGetConfig(asc_board_t *boardp) +{ + ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; + unsigned short warn_code = 0; + + asc_dvc->init_state = ASC_INIT_STATE_BEG_GET_CFG; + if (asc_dvc->err_code != 0) + return asc_dvc->err_code; + + if (AscFindSignature(asc_dvc->iop_base)) { + warn_code |= AscInitAscDvcVar(asc_dvc); + warn_code |= AscInitFromEEP(asc_dvc); + asc_dvc->init_state |= ASC_INIT_STATE_END_GET_CFG; + if (asc_dvc->scsi_reset_wait > ASC_MAX_SCSI_RESET_WAIT) + asc_dvc->scsi_reset_wait = ASC_MAX_SCSI_RESET_WAIT; + } else { + asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; + } + + switch (warn_code) { + case 0: /* No error */ + break; + case ASC_WARN_IO_PORT_ROTATE: + ASC_PRINT1("AscInitGetConfig: board %d: I/O port address " + "modified\n", boardp->id); + break; + case ASC_WARN_AUTO_CONFIG: + ASC_PRINT1("AscInitGetConfig: board %d: I/O port increment " + "switch enabled\n", boardp->id); + break; + case ASC_WARN_EEPROM_CHKSUM: + ASC_PRINT1("AscInitGetConfig: board %d: EEPROM checksum " + "error\n", boardp->id); + break; + case ASC_WARN_IRQ_MODIFIED: + ASC_PRINT1("AscInitGetConfig: board %d: IRQ modified\n", + boardp->id); + break; + case ASC_WARN_CMD_QNG_CONFLICT: + ASC_PRINT1("AscInitGetConfig: board %d: tag queuing enabled " + "w/o disconnects\n", boardp->id); + break; + default: + ASC_PRINT2("AscInitGetConfig: board %d: unknown warning: " + "0x%x\n", boardp->id, warn_code); + break; + } + + if (asc_dvc->err_code != 0) { + ASC_PRINT3("AscInitGetConfig: board %d error: init_state 0x%x, " + "err_code 0x%x\n", boardp->id, asc_dvc->init_state, + asc_dvc->err_code); + } + + return asc_dvc->err_code; +} + +static int __devinit AscInitSetConfig(struct pci_dev *pdev, asc_board_t *boardp) +{ + ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; + PortAddr iop_base = asc_dvc->iop_base; + unsigned short cfg_msw; + unsigned short warn_code = 0; + + asc_dvc->init_state |= ASC_INIT_STATE_BEG_SET_CFG; + if (asc_dvc->err_code != 0) + return asc_dvc->err_code; + if (!AscFindSignature(asc_dvc->iop_base)) { + asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; + return asc_dvc->err_code; + } + + cfg_msw = AscGetChipCfgMsw(iop_base); + if ((cfg_msw & ASC_CFG_MSW_CLR_MASK) != 0) { + cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; + warn_code |= ASC_WARN_CFG_MSW_RECOVER; + AscSetChipCfgMsw(iop_base, cfg_msw); + } + if ((asc_dvc->cfg->cmd_qng_enabled & asc_dvc->cfg->disc_enable) != + asc_dvc->cfg->cmd_qng_enabled) { + asc_dvc->cfg->disc_enable = asc_dvc->cfg->cmd_qng_enabled; + warn_code |= ASC_WARN_CMD_QNG_CONFLICT; + } + if (AscGetChipStatus(iop_base) & CSW_AUTO_CONFIG) { + warn_code |= ASC_WARN_AUTO_CONFIG; + } + if ((asc_dvc->bus_type & (ASC_IS_ISA | ASC_IS_VL)) != 0) { + if (AscSetChipIRQ(iop_base, asc_dvc->irq_no, asc_dvc->bus_type) + != asc_dvc->irq_no) { + asc_dvc->err_code |= ASC_IERR_SET_IRQ_NO; + } + } +#ifdef CONFIG_PCI + if (asc_dvc->bus_type & ASC_IS_PCI) { + cfg_msw &= 0xFFC0; + AscSetChipCfgMsw(iop_base, cfg_msw); + if ((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == ASC_IS_PCI_ULTRA) { + } else { + if ((pdev->device == PCI_DEVICE_ID_ASP_1200A) || + (pdev->device == PCI_DEVICE_ID_ASP_ABP940)) { + asc_dvc->bug_fix_cntl |= ASC_BUG_FIX_IF_NOT_DWB; + asc_dvc->bug_fix_cntl |= + ASC_BUG_FIX_ASYN_USE_SYN; + } + } + } else +#endif /* CONFIG_PCI */ + if (asc_dvc->bus_type == ASC_IS_ISAPNP) { + if (AscGetChipVersion(iop_base, asc_dvc->bus_type) + == ASC_CHIP_VER_ASYN_BUG) { + asc_dvc->bug_fix_cntl |= ASC_BUG_FIX_ASYN_USE_SYN; + } + } + if (AscSetChipScsiID(iop_base, asc_dvc->cfg->chip_scsi_id) != + asc_dvc->cfg->chip_scsi_id) { + asc_dvc->err_code |= ASC_IERR_SET_SCSI_ID; + } +#ifdef CONFIG_ISA + if (asc_dvc->bus_type & ASC_IS_ISA) { + AscSetIsaDmaChannel(iop_base, asc_dvc->cfg->isa_dma_channel); + AscSetIsaDmaSpeed(iop_base, asc_dvc->cfg->isa_dma_speed); + } +#endif /* CONFIG_ISA */ + + asc_dvc->init_state |= ASC_INIT_STATE_END_SET_CFG; + + switch (warn_code) { + case 0: /* No error. */ + break; + case ASC_WARN_IO_PORT_ROTATE: + ASC_PRINT1("AscInitSetConfig: board %d: I/O port address " + "modified\n", boardp->id); + break; + case ASC_WARN_AUTO_CONFIG: + ASC_PRINT1("AscInitSetConfig: board %d: I/O port increment " + "switch enabled\n", boardp->id); + break; + case ASC_WARN_EEPROM_CHKSUM: + ASC_PRINT1("AscInitSetConfig: board %d: EEPROM checksum " + "error\n", boardp->id); + break; + case ASC_WARN_IRQ_MODIFIED: + ASC_PRINT1("AscInitSetConfig: board %d: IRQ modified\n", + boardp->id); + break; + case ASC_WARN_CMD_QNG_CONFLICT: + ASC_PRINT1("AscInitSetConfig: board %d: tag queuing w/o " + "disconnects\n", + boardp->id); + break; + default: + ASC_PRINT2("AscInitSetConfig: board %d: unknown warning: " + "0x%x\n", boardp->id, warn_code); + break; + } + + if (asc_dvc->err_code != 0) { + ASC_PRINT3("AscInitSetConfig: board %d error: init_state 0x%x, " + "err_code 0x%x\n", boardp->id, asc_dvc->init_state, + asc_dvc->err_code); + } + + return asc_dvc->err_code; +} + +/* + * EEPROM Configuration. + * + * All drivers should use this structure to set the default EEPROM + * configuration. The BIOS now uses this structure when it is built. + * Additional structure information can be found in a_condor.h where + * the structure is defined. + * + * The *_Field_IsChar structs are needed to correct for endianness. + * These values are read from the board 16 bits at a time directly + * into the structs. Because some fields are char, the values will be + * in the wrong order. The *_Field_IsChar tells when to flip the + * bytes. Data read and written to PCI memory is automatically swapped + * on big-endian platforms so char fields read as words are actually being + * unswapped on big-endian platforms. + */ +static ADVEEP_3550_CONFIG Default_3550_EEPROM_Config __devinitdata = { + ADV_EEPROM_BIOS_ENABLE, /* cfg_lsw */ + 0x0000, /* cfg_msw */ + 0xFFFF, /* disc_enable */ + 0xFFFF, /* wdtr_able */ + 0xFFFF, /* sdtr_able */ + 0xFFFF, /* start_motor */ + 0xFFFF, /* tagqng_able */ + 0xFFFF, /* bios_scan */ + 0, /* scam_tolerant */ + 7, /* adapter_scsi_id */ + 0, /* bios_boot_delay */ + 3, /* scsi_reset_delay */ + 0, /* bios_id_lun */ + 0, /* termination */ + 0, /* reserved1 */ + 0xFFE7, /* bios_ctrl */ + 0xFFFF, /* ultra_able */ + 0, /* reserved2 */ + ASC_DEF_MAX_HOST_QNG, /* max_host_qng */ + ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */ + 0, /* dvc_cntl */ + 0, /* bug_fix */ + 0, /* serial_number_word1 */ + 0, /* serial_number_word2 */ + 0, /* serial_number_word3 */ + 0, /* check_sum */ + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} + , /* oem_name[16] */ + 0, /* dvc_err_code */ + 0, /* adv_err_code */ + 0, /* adv_err_addr */ + 0, /* saved_dvc_err_code */ + 0, /* saved_adv_err_code */ + 0, /* saved_adv_err_addr */ + 0 /* num_of_err */ +}; + +static ADVEEP_3550_CONFIG ADVEEP_3550_Config_Field_IsChar __devinitdata = { + 0, /* cfg_lsw */ + 0, /* cfg_msw */ + 0, /* -disc_enable */ + 0, /* wdtr_able */ + 0, /* sdtr_able */ + 0, /* start_motor */ + 0, /* tagqng_able */ + 0, /* bios_scan */ + 0, /* scam_tolerant */ + 1, /* adapter_scsi_id */ + 1, /* bios_boot_delay */ + 1, /* scsi_reset_delay */ + 1, /* bios_id_lun */ + 1, /* termination */ + 1, /* reserved1 */ + 0, /* bios_ctrl */ + 0, /* ultra_able */ + 0, /* reserved2 */ + 1, /* max_host_qng */ + 1, /* max_dvc_qng */ + 0, /* dvc_cntl */ + 0, /* bug_fix */ + 0, /* serial_number_word1 */ + 0, /* serial_number_word2 */ + 0, /* serial_number_word3 */ + 0, /* check_sum */ + {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} + , /* oem_name[16] */ + 0, /* dvc_err_code */ + 0, /* adv_err_code */ + 0, /* adv_err_addr */ + 0, /* saved_dvc_err_code */ + 0, /* saved_adv_err_code */ + 0, /* saved_adv_err_addr */ + 0 /* num_of_err */ +}; + +static ADVEEP_38C0800_CONFIG Default_38C0800_EEPROM_Config __devinitdata = { + ADV_EEPROM_BIOS_ENABLE, /* 00 cfg_lsw */ + 0x0000, /* 01 cfg_msw */ + 0xFFFF, /* 02 disc_enable */ + 0xFFFF, /* 03 wdtr_able */ + 0x4444, /* 04 sdtr_speed1 */ + 0xFFFF, /* 05 start_motor */ + 0xFFFF, /* 06 tagqng_able */ + 0xFFFF, /* 07 bios_scan */ + 0, /* 08 scam_tolerant */ + 7, /* 09 adapter_scsi_id */ + 0, /* bios_boot_delay */ + 3, /* 10 scsi_reset_delay */ + 0, /* bios_id_lun */ + 0, /* 11 termination_se */ + 0, /* termination_lvd */ + 0xFFE7, /* 12 bios_ctrl */ + 0x4444, /* 13 sdtr_speed2 */ + 0x4444, /* 14 sdtr_speed3 */ + ASC_DEF_MAX_HOST_QNG, /* 15 max_host_qng */ + ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */ + 0, /* 16 dvc_cntl */ + 0x4444, /* 17 sdtr_speed4 */ + 0, /* 18 serial_number_word1 */ + 0, /* 19 serial_number_word2 */ + 0, /* 20 serial_number_word3 */ + 0, /* 21 check_sum */ + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} + , /* 22-29 oem_name[16] */ + 0, /* 30 dvc_err_code */ + 0, /* 31 adv_err_code */ + 0, /* 32 adv_err_addr */ + 0, /* 33 saved_dvc_err_code */ + 0, /* 34 saved_adv_err_code */ + 0, /* 35 saved_adv_err_addr */ + 0, /* 36 reserved */ + 0, /* 37 reserved */ + 0, /* 38 reserved */ + 0, /* 39 reserved */ + 0, /* 40 reserved */ + 0, /* 41 reserved */ + 0, /* 42 reserved */ + 0, /* 43 reserved */ + 0, /* 44 reserved */ + 0, /* 45 reserved */ + 0, /* 46 reserved */ + 0, /* 47 reserved */ + 0, /* 48 reserved */ + 0, /* 49 reserved */ + 0, /* 50 reserved */ + 0, /* 51 reserved */ + 0, /* 52 reserved */ + 0, /* 53 reserved */ + 0, /* 54 reserved */ + 0, /* 55 reserved */ + 0, /* 56 cisptr_lsw */ + 0, /* 57 cisprt_msw */ + PCI_VENDOR_ID_ASP, /* 58 subsysvid */ + PCI_DEVICE_ID_38C0800_REV1, /* 59 subsysid */ + 0, /* 60 reserved */ + 0, /* 61 reserved */ + 0, /* 62 reserved */ + 0 /* 63 reserved */ +}; + +static ADVEEP_38C0800_CONFIG ADVEEP_38C0800_Config_Field_IsChar __devinitdata = { + 0, /* 00 cfg_lsw */ + 0, /* 01 cfg_msw */ + 0, /* 02 disc_enable */ + 0, /* 03 wdtr_able */ + 0, /* 04 sdtr_speed1 */ + 0, /* 05 start_motor */ + 0, /* 06 tagqng_able */ + 0, /* 07 bios_scan */ + 0, /* 08 scam_tolerant */ + 1, /* 09 adapter_scsi_id */ + 1, /* bios_boot_delay */ + 1, /* 10 scsi_reset_delay */ + 1, /* bios_id_lun */ + 1, /* 11 termination_se */ + 1, /* termination_lvd */ + 0, /* 12 bios_ctrl */ + 0, /* 13 sdtr_speed2 */ + 0, /* 14 sdtr_speed3 */ + 1, /* 15 max_host_qng */ + 1, /* max_dvc_qng */ + 0, /* 16 dvc_cntl */ + 0, /* 17 sdtr_speed4 */ + 0, /* 18 serial_number_word1 */ + 0, /* 19 serial_number_word2 */ + 0, /* 20 serial_number_word3 */ + 0, /* 21 check_sum */ + {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} + , /* 22-29 oem_name[16] */ + 0, /* 30 dvc_err_code */ + 0, /* 31 adv_err_code */ + 0, /* 32 adv_err_addr */ + 0, /* 33 saved_dvc_err_code */ + 0, /* 34 saved_adv_err_code */ + 0, /* 35 saved_adv_err_addr */ + 0, /* 36 reserved */ + 0, /* 37 reserved */ + 0, /* 38 reserved */ + 0, /* 39 reserved */ + 0, /* 40 reserved */ + 0, /* 41 reserved */ + 0, /* 42 reserved */ + 0, /* 43 reserved */ + 0, /* 44 reserved */ + 0, /* 45 reserved */ + 0, /* 46 reserved */ + 0, /* 47 reserved */ + 0, /* 48 reserved */ + 0, /* 49 reserved */ + 0, /* 50 reserved */ + 0, /* 51 reserved */ + 0, /* 52 reserved */ + 0, /* 53 reserved */ + 0, /* 54 reserved */ + 0, /* 55 reserved */ + 0, /* 56 cisptr_lsw */ + 0, /* 57 cisprt_msw */ + 0, /* 58 subsysvid */ + 0, /* 59 subsysid */ + 0, /* 60 reserved */ + 0, /* 61 reserved */ + 0, /* 62 reserved */ + 0 /* 63 reserved */ +}; + +static ADVEEP_38C1600_CONFIG Default_38C1600_EEPROM_Config __devinitdata = { + ADV_EEPROM_BIOS_ENABLE, /* 00 cfg_lsw */ + 0x0000, /* 01 cfg_msw */ + 0xFFFF, /* 02 disc_enable */ + 0xFFFF, /* 03 wdtr_able */ + 0x5555, /* 04 sdtr_speed1 */ + 0xFFFF, /* 05 start_motor */ + 0xFFFF, /* 06 tagqng_able */ + 0xFFFF, /* 07 bios_scan */ + 0, /* 08 scam_tolerant */ + 7, /* 09 adapter_scsi_id */ + 0, /* bios_boot_delay */ + 3, /* 10 scsi_reset_delay */ + 0, /* bios_id_lun */ + 0, /* 11 termination_se */ + 0, /* termination_lvd */ + 0xFFE7, /* 12 bios_ctrl */ + 0x5555, /* 13 sdtr_speed2 */ + 0x5555, /* 14 sdtr_speed3 */ + ASC_DEF_MAX_HOST_QNG, /* 15 max_host_qng */ + ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */ + 0, /* 16 dvc_cntl */ + 0x5555, /* 17 sdtr_speed4 */ + 0, /* 18 serial_number_word1 */ + 0, /* 19 serial_number_word2 */ + 0, /* 20 serial_number_word3 */ + 0, /* 21 check_sum */ + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} + , /* 22-29 oem_name[16] */ + 0, /* 30 dvc_err_code */ + 0, /* 31 adv_err_code */ + 0, /* 32 adv_err_addr */ + 0, /* 33 saved_dvc_err_code */ + 0, /* 34 saved_adv_err_code */ + 0, /* 35 saved_adv_err_addr */ + 0, /* 36 reserved */ + 0, /* 37 reserved */ + 0, /* 38 reserved */ + 0, /* 39 reserved */ + 0, /* 40 reserved */ + 0, /* 41 reserved */ + 0, /* 42 reserved */ + 0, /* 43 reserved */ + 0, /* 44 reserved */ + 0, /* 45 reserved */ + 0, /* 46 reserved */ + 0, /* 47 reserved */ + 0, /* 48 reserved */ + 0, /* 49 reserved */ + 0, /* 50 reserved */ + 0, /* 51 reserved */ + 0, /* 52 reserved */ + 0, /* 53 reserved */ + 0, /* 54 reserved */ + 0, /* 55 reserved */ + 0, /* 56 cisptr_lsw */ + 0, /* 57 cisprt_msw */ + PCI_VENDOR_ID_ASP, /* 58 subsysvid */ + PCI_DEVICE_ID_38C1600_REV1, /* 59 subsysid */ + 0, /* 60 reserved */ + 0, /* 61 reserved */ + 0, /* 62 reserved */ + 0 /* 63 reserved */ +}; + +static ADVEEP_38C1600_CONFIG ADVEEP_38C1600_Config_Field_IsChar __devinitdata = { + 0, /* 00 cfg_lsw */ + 0, /* 01 cfg_msw */ + 0, /* 02 disc_enable */ + 0, /* 03 wdtr_able */ + 0, /* 04 sdtr_speed1 */ + 0, /* 05 start_motor */ + 0, /* 06 tagqng_able */ + 0, /* 07 bios_scan */ + 0, /* 08 scam_tolerant */ + 1, /* 09 adapter_scsi_id */ + 1, /* bios_boot_delay */ + 1, /* 10 scsi_reset_delay */ + 1, /* bios_id_lun */ + 1, /* 11 termination_se */ + 1, /* termination_lvd */ + 0, /* 12 bios_ctrl */ + 0, /* 13 sdtr_speed2 */ + 0, /* 14 sdtr_speed3 */ + 1, /* 15 max_host_qng */ + 1, /* max_dvc_qng */ + 0, /* 16 dvc_cntl */ + 0, /* 17 sdtr_speed4 */ + 0, /* 18 serial_number_word1 */ + 0, /* 19 serial_number_word2 */ + 0, /* 20 serial_number_word3 */ + 0, /* 21 check_sum */ + {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} + , /* 22-29 oem_name[16] */ + 0, /* 30 dvc_err_code */ + 0, /* 31 adv_err_code */ + 0, /* 32 adv_err_addr */ + 0, /* 33 saved_dvc_err_code */ + 0, /* 34 saved_adv_err_code */ + 0, /* 35 saved_adv_err_addr */ + 0, /* 36 reserved */ + 0, /* 37 reserved */ + 0, /* 38 reserved */ + 0, /* 39 reserved */ + 0, /* 40 reserved */ + 0, /* 41 reserved */ + 0, /* 42 reserved */ + 0, /* 43 reserved */ + 0, /* 44 reserved */ + 0, /* 45 reserved */ + 0, /* 46 reserved */ + 0, /* 47 reserved */ + 0, /* 48 reserved */ + 0, /* 49 reserved */ + 0, /* 50 reserved */ + 0, /* 51 reserved */ + 0, /* 52 reserved */ + 0, /* 53 reserved */ + 0, /* 54 reserved */ + 0, /* 55 reserved */ + 0, /* 56 cisptr_lsw */ + 0, /* 57 cisprt_msw */ + 0, /* 58 subsysvid */ + 0, /* 59 subsysid */ + 0, /* 60 reserved */ + 0, /* 61 reserved */ + 0, /* 62 reserved */ + 0 /* 63 reserved */ +}; + +#ifdef CONFIG_PCI +/* + * Wait for EEPROM command to complete + */ +static void __devinit AdvWaitEEPCmd(AdvPortAddr iop_base) +{ + int eep_delay_ms; + + for (eep_delay_ms = 0; eep_delay_ms < ADV_EEP_DELAY_MS; eep_delay_ms++) { + if (AdvReadWordRegister(iop_base, IOPW_EE_CMD) & + ASC_EEP_CMD_DONE) { + break; + } + mdelay(1); + } + if ((AdvReadWordRegister(iop_base, IOPW_EE_CMD) & ASC_EEP_CMD_DONE) == + 0) + BUG(); +} + +/* + * Read the EEPROM from specified location + */ +static ushort __devinit AdvReadEEPWord(AdvPortAddr iop_base, int eep_word_addr) +{ + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, + ASC_EEP_CMD_READ | eep_word_addr); + AdvWaitEEPCmd(iop_base); + return AdvReadWordRegister(iop_base, IOPW_EE_DATA); +} + +/* + * Write the EEPROM from 'cfg_buf'. + */ +void __devinit +AdvSet3550EEPConfig(AdvPortAddr iop_base, ADVEEP_3550_CONFIG *cfg_buf) +{ + ushort *wbuf; + ushort addr, chksum; + ushort *charfields; + + wbuf = (ushort *)cfg_buf; + charfields = (ushort *)&ADVEEP_3550_Config_Field_IsChar; + chksum = 0; + + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE); + AdvWaitEEPCmd(iop_base); + + /* + * Write EEPROM from word 0 to word 20. + */ + for (addr = ADV_EEP_DVC_CFG_BEGIN; + addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) { + ushort word; + + if (*charfields++) { + word = cpu_to_le16(*wbuf); + } else { + word = *wbuf; + } + chksum += *wbuf; /* Checksum is calculated from word values. */ + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, + ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + mdelay(ADV_EEP_DELAY_MS); + } + + /* + * Write EEPROM checksum at word 21. + */ + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + wbuf++; + charfields++; + + /* + * Write EEPROM OEM name at words 22 to 29. + */ + for (addr = ADV_EEP_DVC_CTL_BEGIN; + addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) { + ushort word; + + if (*charfields++) { + word = cpu_to_le16(*wbuf); + } else { + word = *wbuf; + } + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, + ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + } + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE); + AdvWaitEEPCmd(iop_base); +} + +/* + * Write the EEPROM from 'cfg_buf'. + */ +void __devinit +AdvSet38C0800EEPConfig(AdvPortAddr iop_base, ADVEEP_38C0800_CONFIG *cfg_buf) +{ + ushort *wbuf; + ushort *charfields; + ushort addr, chksum; + + wbuf = (ushort *)cfg_buf; + charfields = (ushort *)&ADVEEP_38C0800_Config_Field_IsChar; + chksum = 0; + + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE); + AdvWaitEEPCmd(iop_base); + + /* + * Write EEPROM from word 0 to word 20. + */ + for (addr = ADV_EEP_DVC_CFG_BEGIN; + addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) { + ushort word; + + if (*charfields++) { + word = cpu_to_le16(*wbuf); + } else { + word = *wbuf; + } + chksum += *wbuf; /* Checksum is calculated from word values. */ + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, + ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + mdelay(ADV_EEP_DELAY_MS); + } + + /* + * Write EEPROM checksum at word 21. + */ + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + wbuf++; + charfields++; + + /* + * Write EEPROM OEM name at words 22 to 29. + */ + for (addr = ADV_EEP_DVC_CTL_BEGIN; + addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) { + ushort word; + + if (*charfields++) { + word = cpu_to_le16(*wbuf); + } else { + word = *wbuf; + } + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, + ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + } + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE); + AdvWaitEEPCmd(iop_base); +} + +/* + * Write the EEPROM from 'cfg_buf'. + */ +void __devinit +AdvSet38C1600EEPConfig(AdvPortAddr iop_base, ADVEEP_38C1600_CONFIG *cfg_buf) +{ + ushort *wbuf; + ushort *charfields; + ushort addr, chksum; + + wbuf = (ushort *)cfg_buf; + charfields = (ushort *)&ADVEEP_38C1600_Config_Field_IsChar; + chksum = 0; + + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE); + AdvWaitEEPCmd(iop_base); + + /* + * Write EEPROM from word 0 to word 20. + */ + for (addr = ADV_EEP_DVC_CFG_BEGIN; + addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) { + ushort word; + + if (*charfields++) { + word = cpu_to_le16(*wbuf); + } else { + word = *wbuf; + } + chksum += *wbuf; /* Checksum is calculated from word values. */ + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, + ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + mdelay(ADV_EEP_DELAY_MS); + } + + /* + * Write EEPROM checksum at word 21. + */ + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + wbuf++; + charfields++; + + /* + * Write EEPROM OEM name at words 22 to 29. + */ + for (addr = ADV_EEP_DVC_CTL_BEGIN; + addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) { + ushort word; + + if (*charfields++) { + word = cpu_to_le16(*wbuf); + } else { + word = *wbuf; + } + AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, + ASC_EEP_CMD_WRITE | addr); + AdvWaitEEPCmd(iop_base); + } + AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE); + AdvWaitEEPCmd(iop_base); +} + +/* + * Read EEPROM configuration into the specified buffer. + * + * Return a checksum based on the EEPROM configuration read. + */ +static ushort __devinit +AdvGet3550EEPConfig(AdvPortAddr iop_base, ADVEEP_3550_CONFIG *cfg_buf) +{ + ushort wval, chksum; + ushort *wbuf; + int eep_addr; + ushort *charfields; + + charfields = (ushort *)&ADVEEP_3550_Config_Field_IsChar; + wbuf = (ushort *)cfg_buf; + chksum = 0; + + for (eep_addr = ADV_EEP_DVC_CFG_BEGIN; + eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) { + wval = AdvReadEEPWord(iop_base, eep_addr); + chksum += wval; /* Checksum is calculated from word values. */ + if (*charfields++) { + *wbuf = le16_to_cpu(wval); + } else { + *wbuf = wval; + } + } + /* Read checksum word. */ + *wbuf = AdvReadEEPWord(iop_base, eep_addr); + wbuf++; + charfields++; + + /* Read rest of EEPROM not covered by the checksum. */ + for (eep_addr = ADV_EEP_DVC_CTL_BEGIN; + eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) { + *wbuf = AdvReadEEPWord(iop_base, eep_addr); + if (*charfields++) { + *wbuf = le16_to_cpu(*wbuf); + } + } + return chksum; +} + +/* + * Read EEPROM configuration into the specified buffer. + * + * Return a checksum based on the EEPROM configuration read. + */ +static ushort __devinit +AdvGet38C0800EEPConfig(AdvPortAddr iop_base, ADVEEP_38C0800_CONFIG *cfg_buf) +{ + ushort wval, chksum; + ushort *wbuf; + int eep_addr; + ushort *charfields; + + charfields = (ushort *)&ADVEEP_38C0800_Config_Field_IsChar; + wbuf = (ushort *)cfg_buf; + chksum = 0; + + for (eep_addr = ADV_EEP_DVC_CFG_BEGIN; + eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) { + wval = AdvReadEEPWord(iop_base, eep_addr); + chksum += wval; /* Checksum is calculated from word values. */ + if (*charfields++) { + *wbuf = le16_to_cpu(wval); + } else { + *wbuf = wval; + } + } + /* Read checksum word. */ + *wbuf = AdvReadEEPWord(iop_base, eep_addr); + wbuf++; + charfields++; + + /* Read rest of EEPROM not covered by the checksum. */ + for (eep_addr = ADV_EEP_DVC_CTL_BEGIN; + eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) { + *wbuf = AdvReadEEPWord(iop_base, eep_addr); + if (*charfields++) { + *wbuf = le16_to_cpu(*wbuf); + } + } + return chksum; +} + +/* + * Read EEPROM configuration into the specified buffer. + * + * Return a checksum based on the EEPROM configuration read. + */ +static ushort __devinit +AdvGet38C1600EEPConfig(AdvPortAddr iop_base, ADVEEP_38C1600_CONFIG *cfg_buf) +{ + ushort wval, chksum; + ushort *wbuf; + int eep_addr; + ushort *charfields; + + charfields = (ushort *)&ADVEEP_38C1600_Config_Field_IsChar; + wbuf = (ushort *)cfg_buf; + chksum = 0; + + for (eep_addr = ADV_EEP_DVC_CFG_BEGIN; + eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) { + wval = AdvReadEEPWord(iop_base, eep_addr); + chksum += wval; /* Checksum is calculated from word values. */ + if (*charfields++) { + *wbuf = le16_to_cpu(wval); + } else { + *wbuf = wval; + } + } + /* Read checksum word. */ + *wbuf = AdvReadEEPWord(iop_base, eep_addr); + wbuf++; + charfields++; + + /* Read rest of EEPROM not covered by the checksum. */ + for (eep_addr = ADV_EEP_DVC_CTL_BEGIN; + eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) { + *wbuf = AdvReadEEPWord(iop_base, eep_addr); + if (*charfields++) { + *wbuf = le16_to_cpu(*wbuf); + } + } + return chksum; +} + +/* * Read the board's EEPROM configuration. Set fields in ADV_DVC_VAR and * ADV_DVC_CFG based on the EEPROM settings. The chip is stopped while * all of this is done. @@ -13234,834 +13757,124 @@ static int __devinit AdvInitFrom38C1600EEP(ADV_DVC_VAR *asc_dvc) } /* - * Read EEPROM configuration into the specified buffer. - * - * Return a checksum based on the EEPROM configuration read. - */ -static ushort __devinit -AdvGet3550EEPConfig(AdvPortAddr iop_base, ADVEEP_3550_CONFIG *cfg_buf) -{ - ushort wval, chksum; - ushort *wbuf; - int eep_addr; - ushort *charfields; - - charfields = (ushort *)&ADVEEP_3550_Config_Field_IsChar; - wbuf = (ushort *)cfg_buf; - chksum = 0; - - for (eep_addr = ADV_EEP_DVC_CFG_BEGIN; - eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) { - wval = AdvReadEEPWord(iop_base, eep_addr); - chksum += wval; /* Checksum is calculated from word values. */ - if (*charfields++) { - *wbuf = le16_to_cpu(wval); - } else { - *wbuf = wval; - } - } - /* Read checksum word. */ - *wbuf = AdvReadEEPWord(iop_base, eep_addr); - wbuf++; - charfields++; - - /* Read rest of EEPROM not covered by the checksum. */ - for (eep_addr = ADV_EEP_DVC_CTL_BEGIN; - eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) { - *wbuf = AdvReadEEPWord(iop_base, eep_addr); - if (*charfields++) { - *wbuf = le16_to_cpu(*wbuf); - } - } - return chksum; -} - -/* - * Read EEPROM configuration into the specified buffer. + * Initialize the ADV_DVC_VAR structure. * - * Return a checksum based on the EEPROM configuration read. - */ -static ushort __devinit -AdvGet38C0800EEPConfig(AdvPortAddr iop_base, ADVEEP_38C0800_CONFIG *cfg_buf) -{ - ushort wval, chksum; - ushort *wbuf; - int eep_addr; - ushort *charfields; - - charfields = (ushort *)&ADVEEP_38C0800_Config_Field_IsChar; - wbuf = (ushort *)cfg_buf; - chksum = 0; - - for (eep_addr = ADV_EEP_DVC_CFG_BEGIN; - eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) { - wval = AdvReadEEPWord(iop_base, eep_addr); - chksum += wval; /* Checksum is calculated from word values. */ - if (*charfields++) { - *wbuf = le16_to_cpu(wval); - } else { - *wbuf = wval; - } - } - /* Read checksum word. */ - *wbuf = AdvReadEEPWord(iop_base, eep_addr); - wbuf++; - charfields++; - - /* Read rest of EEPROM not covered by the checksum. */ - for (eep_addr = ADV_EEP_DVC_CTL_BEGIN; - eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) { - *wbuf = AdvReadEEPWord(iop_base, eep_addr); - if (*charfields++) { - *wbuf = le16_to_cpu(*wbuf); - } - } - return chksum; -} - -/* - * Read EEPROM configuration into the specified buffer. + * On failure set the ADV_DVC_VAR field 'err_code' and return ADV_ERROR. * - * Return a checksum based on the EEPROM configuration read. - */ -static ushort __devinit -AdvGet38C1600EEPConfig(AdvPortAddr iop_base, ADVEEP_38C1600_CONFIG *cfg_buf) -{ - ushort wval, chksum; - ushort *wbuf; - int eep_addr; - ushort *charfields; - - charfields = (ushort *)&ADVEEP_38C1600_Config_Field_IsChar; - wbuf = (ushort *)cfg_buf; - chksum = 0; - - for (eep_addr = ADV_EEP_DVC_CFG_BEGIN; - eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) { - wval = AdvReadEEPWord(iop_base, eep_addr); - chksum += wval; /* Checksum is calculated from word values. */ - if (*charfields++) { - *wbuf = le16_to_cpu(wval); - } else { - *wbuf = wval; - } - } - /* Read checksum word. */ - *wbuf = AdvReadEEPWord(iop_base, eep_addr); - wbuf++; - charfields++; - - /* Read rest of EEPROM not covered by the checksum. */ - for (eep_addr = ADV_EEP_DVC_CTL_BEGIN; - eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) { - *wbuf = AdvReadEEPWord(iop_base, eep_addr); - if (*charfields++) { - *wbuf = le16_to_cpu(*wbuf); - } - } - return chksum; -} - -/* - * Read the EEPROM from specified location - */ -static ushort __devinit AdvReadEEPWord(AdvPortAddr iop_base, int eep_word_addr) -{ - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, - ASC_EEP_CMD_READ | eep_word_addr); - AdvWaitEEPCmd(iop_base); - return AdvReadWordRegister(iop_base, IOPW_EE_DATA); -} - -/* - * Wait for EEPROM command to complete - */ -static void __devinit AdvWaitEEPCmd(AdvPortAddr iop_base) -{ - int eep_delay_ms; - - for (eep_delay_ms = 0; eep_delay_ms < ADV_EEP_DELAY_MS; eep_delay_ms++) { - if (AdvReadWordRegister(iop_base, IOPW_EE_CMD) & - ASC_EEP_CMD_DONE) { - break; - } - mdelay(1); - } - if ((AdvReadWordRegister(iop_base, IOPW_EE_CMD) & ASC_EEP_CMD_DONE) == - 0) - BUG(); - return; -} - -/* - * Write the EEPROM from 'cfg_buf'. - */ -void __devinit -AdvSet3550EEPConfig(AdvPortAddr iop_base, ADVEEP_3550_CONFIG *cfg_buf) -{ - ushort *wbuf; - ushort addr, chksum; - ushort *charfields; - - wbuf = (ushort *)cfg_buf; - charfields = (ushort *)&ADVEEP_3550_Config_Field_IsChar; - chksum = 0; - - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE); - AdvWaitEEPCmd(iop_base); - - /* - * Write EEPROM from word 0 to word 20. - */ - for (addr = ADV_EEP_DVC_CFG_BEGIN; - addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) { - ushort word; - - if (*charfields++) { - word = cpu_to_le16(*wbuf); - } else { - word = *wbuf; - } - chksum += *wbuf; /* Checksum is calculated from word values. */ - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, - ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - mdelay(ADV_EEP_DELAY_MS); - } - - /* - * Write EEPROM checksum at word 21. - */ - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - wbuf++; - charfields++; - - /* - * Write EEPROM OEM name at words 22 to 29. - */ - for (addr = ADV_EEP_DVC_CTL_BEGIN; - addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) { - ushort word; - - if (*charfields++) { - word = cpu_to_le16(*wbuf); - } else { - word = *wbuf; - } - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, - ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - } - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE); - AdvWaitEEPCmd(iop_base); - return; -} - -/* - * Write the EEPROM from 'cfg_buf'. - */ -void __devinit -AdvSet38C0800EEPConfig(AdvPortAddr iop_base, ADVEEP_38C0800_CONFIG *cfg_buf) -{ - ushort *wbuf; - ushort *charfields; - ushort addr, chksum; - - wbuf = (ushort *)cfg_buf; - charfields = (ushort *)&ADVEEP_38C0800_Config_Field_IsChar; - chksum = 0; - - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE); - AdvWaitEEPCmd(iop_base); - - /* - * Write EEPROM from word 0 to word 20. - */ - for (addr = ADV_EEP_DVC_CFG_BEGIN; - addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) { - ushort word; - - if (*charfields++) { - word = cpu_to_le16(*wbuf); - } else { - word = *wbuf; - } - chksum += *wbuf; /* Checksum is calculated from word values. */ - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, - ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - mdelay(ADV_EEP_DELAY_MS); - } - - /* - * Write EEPROM checksum at word 21. - */ - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - wbuf++; - charfields++; - - /* - * Write EEPROM OEM name at words 22 to 29. - */ - for (addr = ADV_EEP_DVC_CTL_BEGIN; - addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) { - ushort word; - - if (*charfields++) { - word = cpu_to_le16(*wbuf); - } else { - word = *wbuf; - } - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, - ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - } - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE); - AdvWaitEEPCmd(iop_base); - return; -} - -/* - * Write the EEPROM from 'cfg_buf'. + * For a non-fatal error return a warning code. If there are no warnings + * then 0 is returned. */ -void __devinit -AdvSet38C1600EEPConfig(AdvPortAddr iop_base, ADVEEP_38C1600_CONFIG *cfg_buf) +static int __devinit +AdvInitGetConfig(struct pci_dev *pdev, asc_board_t *boardp) { - ushort *wbuf; - ushort *charfields; - ushort addr, chksum; - - wbuf = (ushort *)cfg_buf; - charfields = (ushort *)&ADVEEP_38C1600_Config_Field_IsChar; - chksum = 0; - - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE); - AdvWaitEEPCmd(iop_base); - - /* - * Write EEPROM from word 0 to word 20. - */ - for (addr = ADV_EEP_DVC_CFG_BEGIN; - addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) { - ushort word; + ADV_DVC_VAR *asc_dvc = &boardp->dvc_var.adv_dvc_var; + unsigned short warn_code = 0; + AdvPortAddr iop_base = asc_dvc->iop_base; + u16 cmd; + int status; - if (*charfields++) { - word = cpu_to_le16(*wbuf); - } else { - word = *wbuf; - } - chksum += *wbuf; /* Checksum is calculated from word values. */ - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, - ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - mdelay(ADV_EEP_DELAY_MS); - } + asc_dvc->err_code = 0; /* - * Write EEPROM checksum at word 21. + * Save the state of the PCI Configuration Command Register + * "Parity Error Response Control" Bit. If the bit is clear (0), + * in AdvInitAsc3550/38C0800Driver() tell the microcode to ignore + * DMA parity errors. */ - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - wbuf++; - charfields++; + asc_dvc->cfg->control_flag = 0; + pci_read_config_word(pdev, PCI_COMMAND, &cmd); + if ((cmd & PCI_COMMAND_PARITY) == 0) + asc_dvc->cfg->control_flag |= CONTROL_FLAG_IGNORE_PERR; - /* - * Write EEPROM OEM name at words 22 to 29. - */ - for (addr = ADV_EEP_DVC_CTL_BEGIN; - addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) { - ushort word; + asc_dvc->cfg->lib_version = (ADV_LIB_VERSION_MAJOR << 8) | + ADV_LIB_VERSION_MINOR; + asc_dvc->cfg->chip_version = + AdvGetChipVersion(iop_base, asc_dvc->bus_type); - if (*charfields++) { - word = cpu_to_le16(*wbuf); - } else { - word = *wbuf; - } - AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, - ASC_EEP_CMD_WRITE | addr); - AdvWaitEEPCmd(iop_base); - } - AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE); - AdvWaitEEPCmd(iop_base); - return; -} + ASC_DBG2(1, "AdvInitGetConfig: iopb_chip_id_1: 0x%x 0x%x\n", + (ushort)AdvReadByteRegister(iop_base, IOPB_CHIP_ID_1), + (ushort)ADV_CHIP_ID_BYTE); -/* - * AdvExeScsiQueue() - Send a request to the RISC microcode program. - * - * Allocate a carrier structure, point the carrier to the ADV_SCSI_REQ_Q, - * add the carrier to the ICQ (Initiator Command Queue), and tickle the - * RISC to notify it a new command is ready to be executed. - * - * If 'done_status' is not set to QD_DO_RETRY, then 'error_retry' will be - * set to SCSI_MAX_RETRY. - * - * Multi-byte fields in the ASC_SCSI_REQ_Q that are used by the microcode - * for DMA addresses or math operations are byte swapped to little-endian - * order. - * - * Return: - * ADV_SUCCESS(1) - The request was successfully queued. - * ADV_BUSY(0) - Resource unavailable; Retry again after pending - * request completes. - * ADV_ERROR(-1) - Invalid ADV_SCSI_REQ_Q request structure - * host IC error. - */ -static int AdvExeScsiQueue(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq) -{ - AdvPortAddr iop_base; - ADV_DCNT req_size; - ADV_PADDR req_paddr; - ADV_CARR_T *new_carrp; + ASC_DBG2(1, "AdvInitGetConfig: iopw_chip_id_0: 0x%x 0x%x\n", + (ushort)AdvReadWordRegister(iop_base, IOPW_CHIP_ID_0), + (ushort)ADV_CHIP_ID_WORD); /* - * The ADV_SCSI_REQ_Q 'target_id' field should never exceed ADV_MAX_TID. + * Reset the chip to start and allow register writes. */ - if (scsiq->target_id > ADV_MAX_TID) { - scsiq->host_status = QHSTA_M_INVALID_DEVICE; - scsiq->done_status = QD_WITH_ERROR; + if (AdvFindSignature(iop_base) == 0) { + asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; return ADV_ERROR; - } - - iop_base = asc_dvc->iop_base; - - /* - * Allocate a carrier ensuring at least one carrier always - * remains on the freelist and initialize fields. - */ - if ((new_carrp = asc_dvc->carr_freelist) == NULL) { - return ADV_BUSY; - } - asc_dvc->carr_freelist = (ADV_CARR_T *) - ADV_U32_TO_VADDR(le32_to_cpu(new_carrp->next_vpa)); - asc_dvc->carr_pending_cnt++; - - /* - * Set the carrier to be a stopper by setting 'next_vpa' - * to the stopper value. The current stopper will be changed - * below to point to the new stopper. - */ - new_carrp->next_vpa = cpu_to_le32(ASC_CQ_STOPPER); - - /* - * Clear the ADV_SCSI_REQ_Q done flag. - */ - scsiq->a_flag &= ~ADV_SCSIQ_DONE; - - req_size = sizeof(ADV_SCSI_REQ_Q); - req_paddr = DvcGetPhyAddr(asc_dvc, scsiq, (uchar *)scsiq, - (ADV_SDCNT *)&req_size, ADV_IS_SCSIQ_FLAG); - - BUG_ON(req_paddr & 31); - BUG_ON(req_size < sizeof(ADV_SCSI_REQ_Q)); - - /* Wait for assertion before making little-endian */ - req_paddr = cpu_to_le32(req_paddr); - - /* Save virtual and physical address of ADV_SCSI_REQ_Q and carrier. */ - scsiq->scsiq_ptr = cpu_to_le32(ADV_VADDR_TO_U32(scsiq)); - scsiq->scsiq_rptr = req_paddr; - - scsiq->carr_va = cpu_to_le32(ADV_VADDR_TO_U32(asc_dvc->icq_sp)); - /* - * Every ADV_CARR_T.carr_pa is byte swapped to little-endian - * order during initialization. - */ - scsiq->carr_pa = asc_dvc->icq_sp->carr_pa; - - /* - * Use the current stopper to send the ADV_SCSI_REQ_Q command to - * the microcode. The newly allocated stopper will become the new - * stopper. - */ - asc_dvc->icq_sp->areq_vpa = req_paddr; - - /* - * Set the 'next_vpa' pointer for the old stopper to be the - * physical address of the new stopper. The RISC can only - * follow physical addresses. - */ - asc_dvc->icq_sp->next_vpa = new_carrp->carr_pa; - - /* - * Set the host adapter stopper pointer to point to the new carrier. - */ - asc_dvc->icq_sp = new_carrp; - - if (asc_dvc->chip_type == ADV_CHIP_ASC3550 || - asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { + } else { /* - * Tickle the RISC to tell it to read its Command Queue Head pointer. + * The caller must set 'chip_type' to a valid setting. */ - AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_A); - if (asc_dvc->chip_type == ADV_CHIP_ASC3550) { - /* - * Clear the tickle value. In the ASC-3550 the RISC flag - * command 'clr_tickle_a' does not work unless the host - * value is cleared. - */ - AdvWriteByteRegister(iop_base, IOPB_TICKLE, - ADV_TICKLE_NOP); + if (asc_dvc->chip_type != ADV_CHIP_ASC3550 && + asc_dvc->chip_type != ADV_CHIP_ASC38C0800 && + asc_dvc->chip_type != ADV_CHIP_ASC38C1600) { + asc_dvc->err_code |= ASC_IERR_BAD_CHIPTYPE; + return ADV_ERROR; } - } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { + /* - * Notify the RISC a carrier is ready by writing the physical - * address of the new carrier stopper to the COMMA register. + * Reset Chip. */ - AdvWriteDWordRegister(iop_base, IOPDW_COMMA, - le32_to_cpu(new_carrp->carr_pa)); - } - - return ADV_SUCCESS; -} - -/* - * Reset SCSI Bus and purge all outstanding requests. - * - * Return Value: - * ADV_TRUE(1) - All requests are purged and SCSI Bus is reset. - * ADV_FALSE(0) - Microcode command failed. - * ADV_ERROR(-1) - Microcode command timed-out. Microcode or IC - * may be hung which requires driver recovery. - */ -static int AdvResetSB(ADV_DVC_VAR *asc_dvc) -{ - int status; - - /* - * Send the SCSI Bus Reset idle start idle command which asserts - * the SCSI Bus Reset signal. - */ - status = AdvSendIdleCmd(asc_dvc, (ushort)IDLE_CMD_SCSI_RESET_START, 0L); - if (status != ADV_TRUE) { - return status; - } - - /* - * Delay for the specified SCSI Bus Reset hold time. - * - * The hold time delay is done on the host because the RISC has no - * microsecond accurate timer. - */ - udelay(ASC_SCSI_RESET_HOLD_TIME_US); - - /* - * Send the SCSI Bus Reset end idle command which de-asserts - * the SCSI Bus Reset signal and purges any pending requests. - */ - status = AdvSendIdleCmd(asc_dvc, (ushort)IDLE_CMD_SCSI_RESET_END, 0L); - if (status != ADV_TRUE) { - return status; - } - - mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ - - return status; -} - -/* - * Reset chip and SCSI Bus. - * - * Return Value: - * ADV_TRUE(1) - Chip re-initialization and SCSI Bus Reset successful. - * ADV_FALSE(0) - Chip re-initialization and SCSI Bus Reset failure. - */ -static int AdvResetChipAndSB(ADV_DVC_VAR *asc_dvc) -{ - int status; - ushort wdtr_able, sdtr_able, tagqng_able; - ushort ppr_able = 0; - uchar tid, max_cmd[ADV_MAX_TID + 1]; - AdvPortAddr iop_base; - ushort bios_sig; - - iop_base = asc_dvc->iop_base; - - /* - * Save current per TID negotiated values. - */ - AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able); - AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able); - if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { - AdvReadWordLram(iop_base, ASC_MC_PPR_ABLE, ppr_able); - } - AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able); - for (tid = 0; tid <= ADV_MAX_TID; tid++) { - AdvReadByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + tid, - max_cmd[tid]); - } - - /* - * Force the AdvInitAsc3550/38C0800Driver() function to - * perform a SCSI Bus Reset by clearing the BIOS signature word. - * The initialization functions assumes a SCSI Bus Reset is not - * needed if the BIOS signature word is present. - */ - AdvReadWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, bios_sig); - AdvWriteWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, 0); - - /* - * Stop chip and reset it. - */ - AdvWriteWordRegister(iop_base, IOPW_RISC_CSR, ADV_RISC_CSR_STOP); - AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, ADV_CTRL_REG_CMD_RESET); - mdelay(100); - AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, - ADV_CTRL_REG_CMD_WR_IO_REG); - - /* - * Reset Adv Library error code, if any, and try - * re-initializing the chip. - */ - asc_dvc->err_code = 0; - if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { - status = AdvInitAsc38C1600Driver(asc_dvc); - } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { - status = AdvInitAsc38C0800Driver(asc_dvc); - } else { - status = AdvInitAsc3550Driver(asc_dvc); - } - - /* Translate initialization return value to status value. */ - if (status == 0) { - status = ADV_TRUE; - } else { - status = ADV_FALSE; - } - - /* - * Restore the BIOS signature word. - */ - AdvWriteWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, bios_sig); + AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, + ADV_CTRL_REG_CMD_RESET); + mdelay(100); + AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, + ADV_CTRL_REG_CMD_WR_IO_REG); - /* - * Restore per TID negotiated values. - */ - AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able); - AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able); - if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { - AdvWriteWordLram(iop_base, ASC_MC_PPR_ABLE, ppr_able); - } - AdvWriteWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able); - for (tid = 0; tid <= ADV_MAX_TID; tid++) { - AdvWriteByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + tid, - max_cmd[tid]); + if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { + status = AdvInitFrom38C1600EEP(asc_dvc); + } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { + status = AdvInitFrom38C0800EEP(asc_dvc); + } else { + status = AdvInitFrom3550EEP(asc_dvc); + } + warn_code |= status; } - return status; -} - -/* - * Adv Library Interrupt Service Routine - * - * This function is called by a driver's interrupt service routine. - * The function disables and re-enables interrupts. - * - * When a microcode idle command is completed, the ADV_DVC_VAR - * 'idle_cmd_done' field is set to ADV_TRUE. - * - * Note: AdvISR() can be called when interrupts are disabled or even - * when there is no hardware interrupt condition present. It will - * always check for completed idle commands and microcode requests. - * This is an important feature that shouldn't be changed because it - * allows commands to be completed from polling mode loops. - * - * Return: - * ADV_TRUE(1) - interrupt was pending - * ADV_FALSE(0) - no interrupt was pending - */ -static int AdvISR(ADV_DVC_VAR *asc_dvc) -{ - AdvPortAddr iop_base; - uchar int_stat; - ushort target_bit; - ADV_CARR_T *free_carrp; - ADV_VADDR irq_next_vpa; - ADV_SCSI_REQ_Q *scsiq; - - iop_base = asc_dvc->iop_base; - - /* Reading the register clears the interrupt. */ - int_stat = AdvReadByteRegister(iop_base, IOPB_INTR_STATUS_REG); - - if ((int_stat & (ADV_INTR_STATUS_INTRA | ADV_INTR_STATUS_INTRB | - ADV_INTR_STATUS_INTRC)) == 0) { - return ADV_FALSE; + if (warn_code != 0) { + ASC_PRINT2("AdvInitGetConfig: board %d: warning: 0x%x\n", + boardp->id, warn_code); } - /* - * Notify the driver of an asynchronous microcode condition by - * calling the adv_async_callback function. The function - * is passed the microcode ASC_MC_INTRB_CODE byte value. - */ - if (int_stat & ADV_INTR_STATUS_INTRB) { - uchar intrb_code; - - AdvReadByteLram(iop_base, ASC_MC_INTRB_CODE, intrb_code); - - if (asc_dvc->chip_type == ADV_CHIP_ASC3550 || - asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { - if (intrb_code == ADV_ASYNC_CARRIER_READY_FAILURE && - asc_dvc->carr_pending_cnt != 0) { - AdvWriteByteRegister(iop_base, IOPB_TICKLE, - ADV_TICKLE_A); - if (asc_dvc->chip_type == ADV_CHIP_ASC3550) { - AdvWriteByteRegister(iop_base, - IOPB_TICKLE, - ADV_TICKLE_NOP); - } - } - } - - adv_async_callback(asc_dvc, intrb_code); + if (asc_dvc->err_code) { + ASC_PRINT2("AdvInitGetConfig: board %d error: err_code 0x%x\n", + boardp->id, asc_dvc->err_code); } - /* - * Check if the IRQ stopper carrier contains a completed request. - */ - while (((irq_next_vpa = - le32_to_cpu(asc_dvc->irq_sp->next_vpa)) & ASC_RQ_DONE) != 0) { - /* - * Get a pointer to the newly completed ADV_SCSI_REQ_Q structure. - * The RISC will have set 'areq_vpa' to a virtual address. - * - * The firmware will have copied the ASC_SCSI_REQ_Q.scsiq_ptr - * field to the carrier ADV_CARR_T.areq_vpa field. The conversion - * below complements the conversion of ASC_SCSI_REQ_Q.scsiq_ptr' - * in AdvExeScsiQueue(). - */ - scsiq = (ADV_SCSI_REQ_Q *) - ADV_U32_TO_VADDR(le32_to_cpu(asc_dvc->irq_sp->areq_vpa)); - - /* - * Request finished with good status and the queue was not - * DMAed to host memory by the firmware. Set all status fields - * to indicate good status. - */ - if ((irq_next_vpa & ASC_RQ_GOOD) != 0) { - scsiq->done_status = QD_NO_ERROR; - scsiq->host_status = scsiq->scsi_status = 0; - scsiq->data_cnt = 0L; - } - - /* - * Advance the stopper pointer to the next carrier - * ignoring the lower four bits. Free the previous - * stopper carrier. - */ - free_carrp = asc_dvc->irq_sp; - asc_dvc->irq_sp = (ADV_CARR_T *) - ADV_U32_TO_VADDR(ASC_GET_CARRP(irq_next_vpa)); - - free_carrp->next_vpa = - cpu_to_le32(ADV_VADDR_TO_U32(asc_dvc->carr_freelist)); - asc_dvc->carr_freelist = free_carrp; - asc_dvc->carr_pending_cnt--; - - target_bit = ADV_TID_TO_TIDMASK(scsiq->target_id); - - /* - * Clear request microcode control flag. - */ - scsiq->cntl = 0; - - /* - * Notify the driver of the completed request by passing - * the ADV_SCSI_REQ_Q pointer to its callback function. - */ - scsiq->a_flag |= ADV_SCSIQ_DONE; - adv_isr_callback(asc_dvc, scsiq); - /* - * Note: After the driver callback function is called, 'scsiq' - * can no longer be referenced. - * - * Fall through and continue processing other completed - * requests... - */ - } - return ADV_TRUE; + return asc_dvc->err_code; } +#endif -/* - * Send an idle command to the chip and wait for completion. - * - * Command completion is polled for once per microsecond. - * - * The function can be called from anywhere including an interrupt handler. - * But the function is not re-entrant, so it uses the DvcEnter/LeaveCritical() - * functions to prevent reentrancy. - * - * Return Values: - * ADV_TRUE - command completed successfully - * ADV_FALSE - command failed - * ADV_ERROR - command timed out - */ -static int -AdvSendIdleCmd(ADV_DVC_VAR *asc_dvc, - ushort idle_cmd, ADV_DCNT idle_cmd_parameter) -{ - int result; - ADV_DCNT i, j; - AdvPortAddr iop_base; - - iop_base = asc_dvc->iop_base; - - /* - * Clear the idle command status which is set by the microcode - * to a non-zero value to indicate when the command is completed. - * The non-zero result is one of the IDLE_CMD_STATUS_* values - */ - AdvWriteWordLram(iop_base, ASC_MC_IDLE_CMD_STATUS, (ushort)0); - +static struct scsi_host_template advansys_template = { + .proc_name = DRV_NAME, +#ifdef CONFIG_PROC_FS + .proc_info = advansys_proc_info, +#endif + .name = DRV_NAME, + .info = advansys_info, + .queuecommand = advansys_queuecommand, + .eh_bus_reset_handler = advansys_reset, + .bios_param = advansys_biosparam, + .slave_configure = advansys_slave_configure, /* - * Write the idle command value after the idle command parameter - * has been written to avoid a race condition. If the order is not - * followed, the microcode may process the idle command before the - * parameters have been written to LRAM. + * Because the driver may control an ISA adapter 'unchecked_isa_dma' + * must be set. The flag will be cleared in advansys_board_found + * for non-ISA adapters. */ - AdvWriteDWordLramNoSwap(iop_base, ASC_MC_IDLE_CMD_PARAMETER, - cpu_to_le32(idle_cmd_parameter)); - AdvWriteWordLram(iop_base, ASC_MC_IDLE_CMD, idle_cmd); - + .unchecked_isa_dma = 1, /* - * Tickle the RISC to tell it to process the idle command. + * All adapters controlled by this driver are capable of large + * scatter-gather lists. According to the mid-level SCSI documentation + * this obviates any performance gain provided by setting + * 'use_clustering'. But empirically while CPU utilization is increased + * by enabling clustering, I/O throughput increases as well. */ - AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_B); - if (asc_dvc->chip_type == ADV_CHIP_ASC3550) { - /* - * Clear the tickle value. In the ASC-3550 the RISC flag - * command 'clr_tickle_b' does not work unless the host - * value is cleared. - */ - AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_NOP); - } - - /* Wait for up to 100 millisecond for the idle command to timeout. */ - for (i = 0; i < SCSI_WAIT_100_MSEC; i++) { - /* Poll once each microsecond for command completion. */ - for (j = 0; j < SCSI_US_PER_MSEC; j++) { - AdvReadWordLram(iop_base, ASC_MC_IDLE_CMD_STATUS, - result); - if (result != 0) - return result; - udelay(1); - } - } - - BUG(); /* The idle command should never timeout. */ - return ADV_ERROR; -} + .use_clustering = ENABLE_CLUSTERING, +}; static int __devinit advansys_wide_init_chip(asc_board_t *boardp, ADV_DVC_VAR *adv_dvc_varp) -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 02/17] advansys: Remove array of scsi targets 2007-09-15 14:39 ` James Bottomley 2007-09-16 15:31 ` Matthew Wilcox 2007-09-16 15:37 ` [PATCH 01/17] " Matthew Wilcox @ 2007-09-16 15:37 ` Matthew Wilcox 2007-09-16 15:37 ` [PATCH 03/17] advansys: Restructure asc_execute_scsi_cmnd() Matthew Wilcox ` (15 subsequent siblings) 18 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-16 15:37 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox The driver was saving a scsi_device for each target, but wasn't doing anything useful with them. Just delete the array. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 10 ---------- 1 files changed, 0 insertions(+), 10 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 4f047cc..737c0e4 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -2514,7 +2514,6 @@ typedef struct asc_board { } dvc_cfg; ushort asc_n_io_port; /* Number I/O ports. */ ADV_SCSI_BIT_ID_TYPE init_tidmask; /* Target init./valid mask */ - struct scsi_device *device[ADV_MAX_TID + 1]; /* Mid-Level Scsi Device */ ushort reqcnt[ADV_MAX_TID + 1]; /* Starvation request count */ ADV_SCSI_BIT_ID_TYPE queue_full; /* Queue full mask */ ushort queue_full_cnt[ADV_MAX_TID + 1]; /* Queue full count */ @@ -10183,13 +10182,6 @@ static int advansys_slave_configure(struct scsi_device *sdev) asc_board_t *boardp = ASC_BOARDP(sdev->host); boardp->flags |= ASC_SELECT_QUEUE_DEPTHS; - /* - * Save a pointer to the sdev and set its initial/maximum - * queue depth. Only save the pointer for a lun0 dev though. - */ - if (sdev->lun == 0) - boardp->device[sdev->id] = sdev; - if (ASC_NARROW_BOARD(boardp)) advansys_narrow_slave_configure(sdev, &boardp->dvc_var.asc_dvc_var); @@ -11343,14 +11335,12 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) ASC_DVC_VAR *asc_dvc_varp; ADV_DVC_VAR *adv_dvc_varp; ADV_SCSI_REQ_Q *adv_scsiqp; - struct scsi_device *device; int ret; ASC_DBG2(1, "asc_execute_scsi_cmnd: scp 0x%lx, done 0x%lx\n", (ulong)scp, (ulong)scp->scsi_done); boardp = ASC_BOARDP(scp->device->host); - device = boardp->device[scp->device->id]; if (ASC_NARROW_BOARD(boardp)) { /* -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 03/17] advansys: Restructure asc_execute_scsi_cmnd() 2007-09-15 14:39 ` James Bottomley ` (2 preceding siblings ...) 2007-09-16 15:37 ` [PATCH 02/17] advansys: Remove array of scsi targets Matthew Wilcox @ 2007-09-16 15:37 ` Matthew Wilcox 2007-09-16 15:37 ` [PATCH 04/17] advansys: Fix simultaneous calls to ->queuecommand Matthew Wilcox ` (14 subsequent siblings) 18 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-16 15:37 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox The wide and narrow boards share identical handling of the return value, except for some trivial error messages. Move the handling to the common end of the function. Also move variable declarations to the arms of the `if' that they're used in and delete some pointless comments. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 131 ++++++++++++++--------------------------------- 1 files changed, 39 insertions(+), 92 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 737c0e4..3dd7856 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -11331,80 +11331,26 @@ static int AdvExeScsiQueue(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq) */ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) { - asc_board_t *boardp; - ASC_DVC_VAR *asc_dvc_varp; - ADV_DVC_VAR *adv_dvc_varp; - ADV_SCSI_REQ_Q *adv_scsiqp; - int ret; + int ret, err_code; + asc_board_t *boardp = ASC_BOARDP(scp->device->host); - ASC_DBG2(1, "asc_execute_scsi_cmnd: scp 0x%lx, done 0x%lx\n", - (ulong)scp, (ulong)scp->scsi_done); - - boardp = ASC_BOARDP(scp->device->host); + ASC_DBG1(1, "asc_execute_scsi_cmnd: scp 0x%p\n", scp); if (ASC_NARROW_BOARD(boardp)) { - /* - * Build and execute Narrow Board request. - */ - - asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; + ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; - /* - * Build Asc Library request structure using the - * global structures 'asc_scsi_req' and 'asc_sg_head'. - * - * If an error is returned, then the request has been - * queued on the board done queue. It will be completed - * by the caller. - * - * asc_build_req() can not return ASC_BUSY. - */ + /* asc_build_req() can not return ASC_BUSY. */ if (asc_build_req(boardp, scp) == ASC_ERROR) { ASC_STATS(scp->device->host, build_error); return ASC_ERROR; } - switch (ret = AscExeScsiQueue(asc_dvc_varp, &asc_scsi_q)) { - case ASC_NOERROR: - ASC_STATS(scp->device->host, exe_noerror); - /* - * Increment monotonically increasing per device - * successful request counter. Wrapping doesn't matter. - */ - boardp->reqcnt[scp->device->id]++; - ASC_DBG(1, "asc_execute_scsi_cmnd: AscExeScsiQueue(), " - "ASC_NOERROR\n"); - break; - case ASC_BUSY: - ASC_STATS(scp->device->host, exe_busy); - break; - case ASC_ERROR: - ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " - "AscExeScsiQueue() ASC_ERROR, err_code 0x%x\n", - boardp->id, asc_dvc_varp->err_code); - ASC_STATS(scp->device->host, exe_error); - scp->result = HOST_BYTE(DID_ERROR); - break; - default: - ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " - "AscExeScsiQueue() unknown, err_code 0x%x\n", - boardp->id, asc_dvc_varp->err_code); - ASC_STATS(scp->device->host, exe_unknown); - scp->result = HOST_BYTE(DID_ERROR); - break; - } + ret = AscExeScsiQueue(asc_dvc, &asc_scsi_q); + err_code = asc_dvc->err_code; } else { - /* - * Build and execute Wide Board request. - */ - adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; + ADV_DVC_VAR *adv_dvc = &boardp->dvc_var.adv_dvc_var; + ADV_SCSI_REQ_Q *adv_scsiqp; - /* - * Build and get a pointer to an Adv Library request structure. - * - * If the request is successfully built then send it below, - * otherwise return with an error. - */ switch (adv_build_req(boardp, scp, &adv_scsiqp)) { case ASC_NOERROR: ASC_DBG(3, "asc_execute_scsi_cmnd: adv_build_req " @@ -11428,35 +11374,36 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) return ASC_ERROR; } - switch (ret = AdvExeScsiQueue(adv_dvc_varp, adv_scsiqp)) { - case ASC_NOERROR: - ASC_STATS(scp->device->host, exe_noerror); - /* - * Increment monotonically increasing per device - * successful request counter. Wrapping doesn't matter. - */ - boardp->reqcnt[scp->device->id]++; - ASC_DBG(1, "asc_execute_scsi_cmnd: AdvExeScsiQueue(), " - "ASC_NOERROR\n"); - break; - case ASC_BUSY: - ASC_STATS(scp->device->host, exe_busy); - break; - case ASC_ERROR: - ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " - "AdvExeScsiQueue() ASC_ERROR, err_code 0x%x\n", - boardp->id, adv_dvc_varp->err_code); - ASC_STATS(scp->device->host, exe_error); - scp->result = HOST_BYTE(DID_ERROR); - break; - default: - ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " - "AdvExeScsiQueue() unknown, err_code 0x%x\n", - boardp->id, adv_dvc_varp->err_code); - ASC_STATS(scp->device->host, exe_unknown); - scp->result = HOST_BYTE(DID_ERROR); - break; - } + ret = AdvExeScsiQueue(adv_dvc, adv_scsiqp); + err_code = adv_dvc->err_code; + } + + switch (ret) { + case ASC_NOERROR: + ASC_STATS(scp->device->host, exe_noerror); + /* + * Increment monotonically increasing per device + * successful request counter. Wrapping doesn't matter. + */ + boardp->reqcnt[scp->device->id]++; + ASC_DBG(1, "asc_execute_scsi_cmnd: ExeScsiQueue(), " + "ASC_NOERROR\n"); + break; + case ASC_BUSY: + ASC_STATS(scp->device->host, exe_busy); + break; + case ASC_ERROR: + ASC_PRINT2("asc_execute_scsi_cmnd: board %d: ExeScsiQueue() " + "ASC_ERROR, err_code 0x%x\n", boardp->id, err_code); + ASC_STATS(scp->device->host, exe_error); + scp->result = HOST_BYTE(DID_ERROR); + break; + default: + ASC_PRINT2("asc_execute_scsi_cmnd: board %d: ExeScsiQueue() " + "unknown, err_code 0x%x\n", boardp->id, err_code); + ASC_STATS(scp->device->host, exe_unknown); + scp->result = HOST_BYTE(DID_ERROR); + break; } ASC_DBG(1, "asc_execute_scsi_cmnd: end\n"); -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 04/17] advansys: Fix simultaneous calls to ->queuecommand 2007-09-15 14:39 ` James Bottomley ` (3 preceding siblings ...) 2007-09-16 15:37 ` [PATCH 03/17] advansys: Restructure asc_execute_scsi_cmnd() Matthew Wilcox @ 2007-09-16 15:37 ` Matthew Wilcox 2007-09-16 15:37 ` [PATCH 05/17] advansys: Improve reset handler Matthew Wilcox ` (13 subsequent siblings) 18 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-16 15:37 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox The narrow board used two global structures to set up a command; unfortunately they weren't locked, so with two boards in the machine, one call to queuecommand could corrupt the data being used by the other call to queuecommand. Fix this by allocating asc_scsi_q on the stack (64 bytes) and using kmalloc for the asc_sg_head (2k) Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 88 +++++++++++++++++++++-------------------------- 1 files changed, 39 insertions(+), 49 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 3dd7856..fd4d669 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -380,7 +380,7 @@ typedef struct asc_sg_head { ushort queue_cnt; ushort entry_to_copy; ushort res; - ASC_SG_LIST sg_list[ASC_MAX_SG_LIST]; + ASC_SG_LIST sg_list[0]; } ASC_SG_HEAD; typedef struct asc_scsi_q { @@ -2559,12 +2559,6 @@ static int asc_board_count; /* Overrun buffer used by all narrow boards. */ static uchar overrun_buf[ASC_OVERRUN_BSIZE] = { 0 }; -/* - * Global structures required to issue a command. - */ -static ASC_SCSI_Q asc_scsi_q = { {0} }; -static ASC_SG_HEAD asc_sg_head = { 0 }; - #ifdef ADVANSYS_DEBUG static int asc_dbglvl = 3; @@ -10192,39 +10186,28 @@ static int advansys_slave_configure(struct scsi_device *sdev) return 0; } -/* - * Build a request structure for the Asc Library (Narrow Board). - * - * The global structures 'asc_scsi_q' and 'asc_sg_head' are - * used to build the request. - * - * If an error occurs, then return ASC_ERROR. - */ -static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp) +static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, + struct asc_scsi_q *asc_scsi_q) { - /* - * Mutually exclusive access is required to 'asc_scsi_q' and - * 'asc_sg_head' until after the request is started. - */ - memset(&asc_scsi_q, 0, sizeof(ASC_SCSI_Q)); + memset(asc_scsi_q, 0, sizeof(*asc_scsi_q)); /* * Point the ASC_SCSI_Q to the 'struct scsi_cmnd'. */ - asc_scsi_q.q2.srb_ptr = ASC_VADDR_TO_U32(scp); + asc_scsi_q->q2.srb_ptr = ASC_VADDR_TO_U32(scp); /* * Build the ASC_SCSI_Q request. */ - asc_scsi_q.cdbptr = &scp->cmnd[0]; - asc_scsi_q.q2.cdb_len = scp->cmd_len; - asc_scsi_q.q1.target_id = ASC_TID_TO_TARGET_ID(scp->device->id); - asc_scsi_q.q1.target_lun = scp->device->lun; - asc_scsi_q.q2.target_ix = + asc_scsi_q->cdbptr = &scp->cmnd[0]; + asc_scsi_q->q2.cdb_len = scp->cmd_len; + asc_scsi_q->q1.target_id = ASC_TID_TO_TARGET_ID(scp->device->id); + asc_scsi_q->q1.target_lun = scp->device->lun; + asc_scsi_q->q2.target_ix = ASC_TIDLUN_TO_IX(scp->device->id, scp->device->lun); - asc_scsi_q.q1.sense_addr = + asc_scsi_q->q1.sense_addr = cpu_to_le32(virt_to_bus(&scp->sense_buffer[0])); - asc_scsi_q.q1.sense_len = sizeof(scp->sense_buffer); + asc_scsi_q->q1.sense_len = sizeof(scp->sense_buffer); /* * If there are any outstanding requests for the current target, @@ -10239,9 +10222,9 @@ static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp) */ if ((boardp->dvc_var.asc_dvc_var.cur_dvc_qng[scp->device->id] > 0) && (boardp->reqcnt[scp->device->id] % 255) == 0) { - asc_scsi_q.q2.tag_code = MSG_ORDERED_TAG; + asc_scsi_q->q2.tag_code = MSG_ORDERED_TAG; } else { - asc_scsi_q.q2.tag_code = MSG_SIMPLE_TAG; + asc_scsi_q->q2.tag_code = MSG_SIMPLE_TAG; } /* @@ -10257,12 +10240,12 @@ static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp) dma_map_single(boardp->dev, scp->request_buffer, scp->request_bufflen, scp->sc_data_direction) : 0; - asc_scsi_q.q1.data_addr = cpu_to_le32(scp->SCp.dma_handle); - asc_scsi_q.q1.data_cnt = cpu_to_le32(scp->request_bufflen); + asc_scsi_q->q1.data_addr = cpu_to_le32(scp->SCp.dma_handle); + asc_scsi_q->q1.data_cnt = cpu_to_le32(scp->request_bufflen); ASC_STATS_ADD(scp->device->host, cont_xfer, ASC_CEILING(scp->request_bufflen, 512)); - asc_scsi_q.q1.sg_queue_cnt = 0; - asc_scsi_q.sg_head = NULL; + asc_scsi_q->q1.sg_queue_cnt = 0; + asc_scsi_q->sg_head = NULL; } else { /* * CDB scatter-gather request list. @@ -10270,6 +10253,7 @@ static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp) int sgcnt; int use_sg; struct scatterlist *slp; + struct asc_sg_head *asc_sg_head; slp = (struct scatterlist *)scp->request_buffer; use_sg = dma_map_sg(boardp->dev, slp, scp->use_sg, @@ -10287,28 +10271,31 @@ static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp) ASC_STATS(scp->device->host, sg_cnt); - /* - * Use global ASC_SG_HEAD structure and set the ASC_SCSI_Q - * structure to point to it. - */ - memset(&asc_sg_head, 0, sizeof(ASC_SG_HEAD)); + asc_sg_head = kzalloc(sizeof(asc_scsi_q->sg_head) + + use_sg * sizeof(struct asc_sg_list), GFP_ATOMIC); + if (!asc_sg_head) { + dma_unmap_sg(boardp->dev, slp, scp->use_sg, + scp->sc_data_direction); + scp->result = HOST_BYTE(DID_SOFT_ERROR); + return ASC_ERROR; + } - asc_scsi_q.q1.cntl |= QC_SG_HEAD; - asc_scsi_q.sg_head = &asc_sg_head; - asc_scsi_q.q1.data_cnt = 0; - asc_scsi_q.q1.data_addr = 0; + asc_scsi_q->q1.cntl |= QC_SG_HEAD; + asc_scsi_q->sg_head = asc_sg_head; + asc_scsi_q->q1.data_cnt = 0; + asc_scsi_q->q1.data_addr = 0; /* This is a byte value, otherwise it would need to be swapped. */ - asc_sg_head.entry_cnt = asc_scsi_q.q1.sg_queue_cnt = use_sg; + asc_sg_head->entry_cnt = asc_scsi_q->q1.sg_queue_cnt = use_sg; ASC_STATS_ADD(scp->device->host, sg_elem, - asc_sg_head.entry_cnt); + asc_sg_head->entry_cnt); /* * Convert scatter-gather list into ASC_SG_HEAD list. */ for (sgcnt = 0; sgcnt < use_sg; sgcnt++, slp++) { - asc_sg_head.sg_list[sgcnt].addr = + asc_sg_head->sg_list[sgcnt].addr = cpu_to_le32(sg_dma_address(slp)); - asc_sg_head.sg_list[sgcnt].bytes = + asc_sg_head->sg_list[sgcnt].bytes = cpu_to_le32(sg_dma_len(slp)); ASC_STATS_ADD(scp->device->host, sg_xfer, ASC_CEILING(sg_dma_len(slp), 512)); @@ -11338,14 +11325,17 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) if (ASC_NARROW_BOARD(boardp)) { ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; + struct asc_scsi_q asc_scsi_q; /* asc_build_req() can not return ASC_BUSY. */ - if (asc_build_req(boardp, scp) == ASC_ERROR) { + ret = asc_build_req(boardp, scp, &asc_scsi_q); + if (ret == ASC_ERROR) { ASC_STATS(scp->device->host, build_error); return ASC_ERROR; } ret = AscExeScsiQueue(asc_dvc, &asc_scsi_q); + kfree(asc_scsi_q.sg_head); err_code = asc_dvc->err_code; } else { ADV_DVC_VAR *adv_dvc = &boardp->dvc_var.adv_dvc_var; -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 05/17] advansys: Improve reset handler 2007-09-15 14:39 ` James Bottomley ` (4 preceding siblings ...) 2007-09-16 15:37 ` [PATCH 04/17] advansys: Fix simultaneous calls to ->queuecommand Matthew Wilcox @ 2007-09-16 15:37 ` Matthew Wilcox 2007-09-16 15:37 ` [PATCH 06/17] advansys: Remove ASC_SELECT_QUEUE_DEPTHS Matthew Wilcox ` (12 subsequent siblings) 18 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-16 15:37 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox - Don't need to set ASC_HOST_IN_RESET any more - Don't need to test scp->device->host for NULL -- if it's NULL, we couldn't've been called. - Use scmd_printk instead of ASC_PRINT Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 83 ++++++++++++---------------------------------- 1 files changed, 22 insertions(+), 61 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index fd4d669..52ea41d 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -2229,7 +2229,6 @@ do { \ #define ASC_BOARDP(host) ((asc_board_t *) &((host)->hostdata)) /* asc_board_t flags */ -#define ASC_HOST_IN_RESET 0x01 #define ASC_IS_WIDE_BOARD 0x04 /* AdvanSys Wide Board */ #define ASC_SELECT_QUEUE_DEPTHS 0x08 @@ -9751,106 +9750,68 @@ static int AscISR(ASC_DVC_VAR *asc_dvc) */ static int advansys_reset(struct scsi_cmnd *scp) { - struct Scsi_Host *shost; - asc_board_t *boardp; - ASC_DVC_VAR *asc_dvc_varp; - ADV_DVC_VAR *adv_dvc_varp; - ulong flags; + struct Scsi_Host *shost = scp->device->host; + struct asc_board *boardp = ASC_BOARDP(shost); + unsigned long flags; int status; int ret = SUCCESS; - ASC_DBG1(1, "advansys_reset: 0x%lx\n", (ulong)scp); + ASC_DBG1(1, "advansys_reset: 0x%p\n", scp); -#ifdef ADVANSYS_STATS - if (scp->device->host != NULL) { - ASC_STATS(scp->device->host, reset); - } -#endif /* ADVANSYS_STATS */ - - if ((shost = scp->device->host) == NULL) { - scp->result = HOST_BYTE(DID_ERROR); - return FAILED; - } + ASC_STATS(shost, reset); - boardp = ASC_BOARDP(shost); - - ASC_PRINT1("advansys_reset: board %d: SCSI bus reset started...\n", - boardp->id); - /* - * Check for re-entrancy. - */ - spin_lock_irqsave(&boardp->lock, flags); - if (boardp->flags & ASC_HOST_IN_RESET) { - spin_unlock_irqrestore(&boardp->lock, flags); - return FAILED; - } - boardp->flags |= ASC_HOST_IN_RESET; - spin_unlock_irqrestore(&boardp->lock, flags); + scmd_printk(KERN_INFO, scp, "SCSI bus reset started...\n"); if (ASC_NARROW_BOARD(boardp)) { - /* - * Narrow Board - */ - asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; + ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; - /* - * Reset the chip and SCSI bus. - */ + /* Reset the chip and SCSI bus. */ ASC_DBG(1, "advansys_reset: before AscInitAsc1000Driver()\n"); - status = AscInitAsc1000Driver(asc_dvc_varp); + status = AscInitAsc1000Driver(asc_dvc); /* Refer to ASC_IERR_* defintions for meaning of 'err_code'. */ - if (asc_dvc_varp->err_code) { - ASC_PRINT2("advansys_reset: board %d: SCSI bus reset " - "error: 0x%x\n", boardp->id, - asc_dvc_varp->err_code); + if (asc_dvc->err_code) { + scmd_printk(KERN_INFO, scp, "SCSI bus reset error: " + "0x%x\n", asc_dvc->err_code); ret = FAILED; } else if (status) { - ASC_PRINT2("advansys_reset: board %d: SCSI bus reset " - "warning: 0x%x\n", boardp->id, status); + scmd_printk(KERN_INFO, scp, "SCSI bus reset warning: " + "0x%x\n", status); } else { - ASC_PRINT1("advansys_reset: board %d: SCSI bus reset " - "successful.\n", boardp->id); + scmd_printk(KERN_INFO, scp, "SCSI bus reset " + "successful\n"); } ASC_DBG(1, "advansys_reset: after AscInitAsc1000Driver()\n"); spin_lock_irqsave(&boardp->lock, flags); - } else { /* - * Wide Board - * * If the suggest reset bus flags are set, then reset the bus. * Otherwise only reset the device. */ - adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; + ADV_DVC_VAR *adv_dvc = &boardp->dvc_var.adv_dvc_var; /* * Reset the target's SCSI bus. */ ASC_DBG(1, "advansys_reset: before AdvResetChipAndSB()\n"); - switch (AdvResetChipAndSB(adv_dvc_varp)) { + switch (AdvResetChipAndSB(adv_dvc)) { case ASC_TRUE: - ASC_PRINT1("advansys_reset: board %d: SCSI bus reset " - "successful.\n", boardp->id); + scmd_printk(KERN_INFO, scp, "SCSI bus reset " + "successful\n"); break; case ASC_FALSE: default: - ASC_PRINT1("advansys_reset: board %d: SCSI bus reset " - "error.\n", boardp->id); + scmd_printk(KERN_INFO, scp, "SCSI bus reset error\n"); ret = FAILED; break; } spin_lock_irqsave(&boardp->lock, flags); - AdvISR(adv_dvc_varp); + AdvISR(adv_dvc); } - /* Board lock is held. */ /* Save the time of the most recently completed reset. */ boardp->last_reset = jiffies; - - /* Clear reset flag. */ - boardp->flags &= ~ASC_HOST_IN_RESET; spin_unlock_irqrestore(&boardp->lock, flags); ASC_DBG1(1, "advansys_reset: ret %d\n", ret); -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 06/17] advansys: Remove ASC_SELECT_QUEUE_DEPTHS 2007-09-15 14:39 ` James Bottomley ` (5 preceding siblings ...) 2007-09-16 15:37 ` [PATCH 05/17] advansys: Improve reset handler Matthew Wilcox @ 2007-09-16 15:37 ` Matthew Wilcox 2007-09-16 15:37 ` [PATCH 07/17] advansys: Remove ASC_WIDE_BOARD predicate Matthew Wilcox ` (11 subsequent siblings) 18 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-16 15:37 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox It was only ever set; never tested, nor cleared. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 2 -- 1 files changed, 0 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 52ea41d..5e6bcf2 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -2230,7 +2230,6 @@ do { \ /* asc_board_t flags */ #define ASC_IS_WIDE_BOARD 0x04 /* AdvanSys Wide Board */ -#define ASC_SELECT_QUEUE_DEPTHS 0x08 #define ASC_NARROW_BOARD(boardp) (((boardp)->flags & ASC_IS_WIDE_BOARD) == 0) #define ASC_WIDE_BOARD(boardp) ((boardp)->flags & ASC_IS_WIDE_BOARD) @@ -10135,7 +10134,6 @@ advansys_wide_slave_configure(struct scsi_device *sdev, ADV_DVC_VAR *adv_dvc) static int advansys_slave_configure(struct scsi_device *sdev) { asc_board_t *boardp = ASC_BOARDP(sdev->host); - boardp->flags |= ASC_SELECT_QUEUE_DEPTHS; if (ASC_NARROW_BOARD(boardp)) advansys_narrow_slave_configure(sdev, -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 07/17] advansys: Remove ASC_WIDE_BOARD predicate 2007-09-15 14:39 ` James Bottomley ` (6 preceding siblings ...) 2007-09-16 15:37 ` [PATCH 06/17] advansys: Remove ASC_SELECT_QUEUE_DEPTHS Matthew Wilcox @ 2007-09-16 15:37 ` Matthew Wilcox 2007-09-16 15:37 ` [PATCH 08/17] advansys: Sort out irq number mess Matthew Wilcox ` (10 subsequent siblings) 18 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-16 15:37 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox Replace it with !ASC_NARROW_BOARD Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 5 ++--- 1 files changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 5e6bcf2..a5bb4e4 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -2232,7 +2232,6 @@ do { \ #define ASC_IS_WIDE_BOARD 0x04 /* AdvanSys Wide Board */ #define ASC_NARROW_BOARD(boardp) (((boardp)->flags & ASC_IS_WIDE_BOARD) == 0) -#define ASC_WIDE_BOARD(boardp) ((boardp)->flags & ASC_IS_WIDE_BOARD) #define NO_ISA_DMA 0xff /* No ISA DMA Channel Used */ @@ -4385,7 +4384,7 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, /* * Display Wide Board BIOS Information. */ - if (ASC_WIDE_BOARD(boardp)) { + if (!ASC_NARROW_BOARD(boardp)) { cp = boardp->prtbuf; cplen = asc_prt_adv_bios(shost, cp, ASC_PRTBUF_SIZE); BUG_ON(cplen >= ASC_PRTBUF_SIZE); @@ -14432,7 +14431,7 @@ static int advansys_release(struct Scsi_Host *shost) ASC_DBG(1, "advansys_release: free_dma()\n"); free_dma(shost->dma_channel); } - if (ASC_WIDE_BOARD(boardp)) { + if (!ASC_NARROW_BOARD(boardp)) { iounmap(boardp->ioremap_addr); advansys_wide_free_mem(boardp); } -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 08/17] advansys: Sort out irq number mess 2007-09-15 14:39 ` James Bottomley ` (7 preceding siblings ...) 2007-09-16 15:37 ` [PATCH 07/17] advansys: Remove ASC_WIDE_BOARD predicate Matthew Wilcox @ 2007-09-16 15:37 ` Matthew Wilcox 2007-09-16 15:37 ` [PATCH 09/17] advansys: Merge ASC_IERR definitions Matthew Wilcox ` (9 subsequent siblings) 18 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-16 15:37 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox The interrupt number was being stored in 4-5 different places, each with its own type, rules and usage. Fix this by keeping an unsigned int in the struct asc_board, and filling it in from the bus probe functions (since it's different for each of the four bus types). In order to do this, we have to allocate the Scsi_Host in the bus probe functions too. Then we can return an error from advansys_board_found, which requires a little rearranging of code (and removing of the err_code variable). Move the Wide Board flag setting into the PCI bus probe function. Split the AscGetChipIRQ function into three functions (one for each bus type that needs it) and add some commentary to explain what's going on. Also get rid of the AscSetChipIRQ function as we only ever set the interrupt number to the same value it already had. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 387 +++++++++++++++++++++++------------------------ 1 files changed, 189 insertions(+), 198 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index a5bb4e4..ad9639d 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -461,23 +461,13 @@ typedef struct asc_risc_sg_list_q { /* * Error code values are set in ASC_DVC_VAR 'err_code'. */ -#define ASC_IERR_WRITE_EEPROM 0x0001 #define ASC_IERR_MCODE_CHKSUM 0x0002 #define ASC_IERR_SET_PC_ADDR 0x0004 #define ASC_IERR_START_STOP_CHIP 0x0008 -#define ASC_IERR_IRQ_NO 0x0010 -#define ASC_IERR_SET_IRQ_NO 0x0020 -#define ASC_IERR_CHIP_VERSION 0x0040 #define ASC_IERR_SET_SCSI_ID 0x0080 -#define ASC_IERR_GET_PHY_ADDR 0x0100 #define ASC_IERR_BAD_SIGNATURE 0x0200 #define ASC_IERR_NO_BUS_TYPE 0x0400 -#define ASC_IERR_SCAM 0x0800 -#define ASC_IERR_SET_SDTR 0x1000 -#define ASC_IERR_RW_LRAM 0x8000 -#define ASC_MAX_IRQ_NO 15 -#define ASC_MIN_IRQ_NO 10 #define ASC_DEF_MAX_TOTAL_QNG (0xF0) #define ASC_MIN_TAG_Q_PER_DVC (0x04) #define ASC_MIN_FREE_Q (0x02) @@ -605,7 +595,6 @@ typedef struct asc_dvc_var { uchar max_total_qng; uchar cur_total_qng; uchar in_critical_cnt; - uchar irq_no; uchar last_q_shortage; ushort init_state; uchar cur_dvc_qng[ASC_MAX_TID + 1]; @@ -1711,11 +1700,9 @@ typedef struct adveep_38C1600_config { /* * Error code values are set in ADV_DVC_VAR 'err_code'. */ -#define ASC_IERR_WRITE_EEPROM 0x0001 /* write EEPROM error */ #define ASC_IERR_MCODE_CHKSUM 0x0002 /* micro code check sum error */ #define ASC_IERR_NO_CARRIER 0x0004 /* No more carrier memory. */ #define ASC_IERR_START_STOP_CHIP 0x0008 /* start/stop chip failed */ -#define ASC_IERR_CHIP_VERSION 0x0040 /* wrong chip version */ #define ASC_IERR_SET_SCSI_ID 0x0080 /* set SCSI ID failed */ #define ASC_IERR_HVD_DEVICE 0x0100 /* HVD attached to LVD connector. */ #define ASC_IERR_BAD_SIGNATURE 0x0200 /* signature not found */ @@ -1919,7 +1906,6 @@ typedef struct adv_dvc_var { uchar scsi_reset_wait; /* delay in seconds after scsi bus reset */ uchar chip_no; /* should be assigned by caller */ uchar max_host_qng; /* maximum number of Q'ed command allowed */ - uchar irq_no; /* IRQ number */ ushort no_scam; /* scam_tolerant of EEPROM */ struct asc_board *drv_ptr; /* driver pointer to private structure */ uchar chip_scsi_id; /* chip SCSI target ID */ @@ -2501,6 +2487,7 @@ typedef struct asc_board { struct device *dev; int id; /* Board Id */ uint flags; /* Board flags */ + unsigned int irq; union { ASC_DVC_VAR asc_dvc_var; /* Narrow board */ ADV_DVC_VAR adv_dvc_var; /* Wide board */ @@ -2573,7 +2560,7 @@ static void asc_prt_scsi_host(struct Scsi_Host *s) s->host_busy, s->host_no, (unsigned)s->last_reset); printk(" base 0x%lx, io_port 0x%lx, irq 0x%x,\n", - (ulong)s->base, (ulong)s->io_port, s->irq); + (ulong)s->base, (ulong)s->io_port, boardp->irq); printk(" dma_channel %d, this_id %d, can_queue %d,\n", s->dma_channel, s->this_id, s->can_queue); @@ -2651,7 +2638,7 @@ static void asc_prt_asc_dvc_var(ASC_DVC_VAR *h) (unsigned)h->init_state, (unsigned)h->no_scam, (unsigned)h->pci_fix_asyn_xfer); - printk(" cfg 0x%lx, irq_no 0x%x\n", (ulong)h->cfg, (unsigned)h->irq_no); + printk(" cfg 0x%lx\n", (ulong)h->cfg); } /* @@ -2749,9 +2736,8 @@ static void asc_prt_adv_dvc_var(ADV_DVC_VAR *h) (ulong)h->isr_callback, (unsigned)h->sdtr_able, (unsigned)h->wdtr_able); - printk(" start_motor 0x%x, scsi_reset_wait 0x%x, irq_no 0x%x,\n", - (unsigned)h->start_motor, - (unsigned)h->scsi_reset_wait, (unsigned)h->irq_no); + printk(" start_motor 0x%x, scsi_reset_wait 0x%x\n", + (unsigned)h->start_motor, (unsigned)h->scsi_reset_wait); printk(" max_host_qng %u, max_dvc_qng %u, carr_freelist 0x%lxn\n", (unsigned)h->max_host_qng, (unsigned)h->max_dvc_qng, @@ -2958,7 +2944,7 @@ static const char *advansys_info(struct Scsi_Host *shost) ASC_VERSION, busname, (ulong)shost->io_port, (ulong)shost->io_port + ASC_IOADR_GAP - 1, - shost->irq, shost->dma_channel); + boardp->irq, shost->dma_channel); } else { if (asc_dvc_varp->bus_type & ASC_IS_VL) { busname = "VL"; @@ -2981,7 +2967,7 @@ static const char *advansys_info(struct Scsi_Host *shost) "AdvanSys SCSI %s: %s: IO 0x%lX-0x%lX, IRQ 0x%X", ASC_VERSION, busname, (ulong)shost->io_port, (ulong)shost->io_port + ASC_IOADR_GAP - 1, - shost->irq); + boardp->irq); } } else { /* @@ -3002,7 +2988,7 @@ static const char *advansys_info(struct Scsi_Host *shost) sprintf(info, "AdvanSys SCSI %s: PCI %s: PCIMEM 0x%lX-0x%lX, IRQ 0x%X", ASC_VERSION, widename, (ulong)adv_dvc_varp->iop_base, - (ulong)adv_dvc_varp->iop_base + boardp->asc_n_io_port - 1, shost->irq); + (ulong)adv_dvc_varp->iop_base + boardp->asc_n_io_port - 1, boardp->irq); } BUG_ON(strlen(info) >= ASC_INFO_SIZE); ASC_DBG(1, "advansys_info: end\n"); @@ -11479,77 +11465,6 @@ AscGetChipVersion(PortAddr iop_base, unsigned short bus_type) return AscGetChipVerNo(iop_base); } -static void __devinit AscToggleIRQAct(PortAddr iop_base) -{ - AscSetChipStatus(iop_base, CIW_IRQ_ACT); - AscSetChipStatus(iop_base, 0); - return; -} - -static uchar __devinit AscGetChipIRQ(PortAddr iop_base, ushort bus_type) -{ - ushort cfg_lsw; - uchar chip_irq; - - if ((bus_type & ASC_IS_EISA) != 0) { - cfg_lsw = AscGetEisaChipCfg(iop_base); - chip_irq = (uchar)(((cfg_lsw >> 8) & 0x07) + 10); - if ((chip_irq == 13) || (chip_irq > 15)) { - return (0); - } - return (chip_irq); - } - if ((bus_type & ASC_IS_VL) != 0) { - cfg_lsw = AscGetChipCfgLsw(iop_base); - chip_irq = (uchar)(((cfg_lsw >> 2) & 0x07)); - if ((chip_irq == 0) || (chip_irq == 4) || (chip_irq == 7)) { - return (0); - } - return ((uchar)(chip_irq + (ASC_MIN_IRQ_NO - 1))); - } - cfg_lsw = AscGetChipCfgLsw(iop_base); - chip_irq = (uchar)(((cfg_lsw >> 2) & 0x03)); - if (chip_irq == 3) - chip_irq += (uchar)2; - return ((uchar)(chip_irq + ASC_MIN_IRQ_NO)); -} - -static uchar __devinit -AscSetChipIRQ(PortAddr iop_base, uchar irq_no, ushort bus_type) -{ - ushort cfg_lsw; - - if ((bus_type & ASC_IS_VL) != 0) { - if (irq_no != 0) { - if ((irq_no < ASC_MIN_IRQ_NO) - || (irq_no > ASC_MAX_IRQ_NO)) { - irq_no = 0; - } else { - irq_no -= (uchar)((ASC_MIN_IRQ_NO - 1)); - } - } - cfg_lsw = (ushort)(AscGetChipCfgLsw(iop_base) & 0xFFE3); - cfg_lsw |= (ushort)0x0010; - AscSetChipCfgLsw(iop_base, cfg_lsw); - AscToggleIRQAct(iop_base); - cfg_lsw = (ushort)(AscGetChipCfgLsw(iop_base) & 0xFFE0); - cfg_lsw |= (ushort)((irq_no & 0x07) << 2); - AscSetChipCfgLsw(iop_base, cfg_lsw); - AscToggleIRQAct(iop_base); - return (AscGetChipIRQ(iop_base, bus_type)); - } - if ((bus_type & (ASC_IS_ISA)) != 0) { - if (irq_no == 15) - irq_no -= (uchar)2; - irq_no -= (uchar)ASC_MIN_IRQ_NO; - cfg_lsw = (ushort)(AscGetChipCfgLsw(iop_base) & 0xFFF3); - cfg_lsw |= (ushort)((irq_no & 0x03) << 2); - AscSetChipCfgLsw(iop_base, cfg_lsw); - return (AscGetChipIRQ(iop_base, bus_type)); - } - return (0); -} - #ifdef CONFIG_ISA static void __devinit AscEnableIsaDma(uchar dma_channel) { @@ -12157,9 +12072,6 @@ static ushort __devinit AscInitFromEEP(ASC_DVC_VAR *asc_dvc) eep_config->disc_enable = eep_config->use_cmd_qng; warn_code |= ASC_WARN_CMD_QNG_CONFLICT; } - if (asc_dvc->bus_type & (ASC_IS_ISA | ASC_IS_VL | ASC_IS_EISA)) { - asc_dvc->irq_no = AscGetChipIRQ(iop_base, asc_dvc->bus_type); - } ASC_EEP_SET_CHIP_ID(eep_config, ASC_EEP_GET_CHIP_ID(eep_config) & ASC_MAX_TID); asc_dvc->cfg->chip_scsi_id = ASC_EEP_GET_CHIP_ID(eep_config); @@ -12276,12 +12188,6 @@ static int __devinit AscInitSetConfig(struct pci_dev *pdev, asc_board_t *boardp) if (AscGetChipStatus(iop_base) & CSW_AUTO_CONFIG) { warn_code |= ASC_WARN_AUTO_CONFIG; } - if ((asc_dvc->bus_type & (ASC_IS_ISA | ASC_IS_VL)) != 0) { - if (AscSetChipIRQ(iop_base, asc_dvc->irq_no, asc_dvc->bus_type) - != asc_dvc->irq_no) { - asc_dvc->err_code |= ASC_IERR_SET_IRQ_NO; - } - } #ifdef CONFIG_PCI if (asc_dvc->bus_type & ASC_IS_PCI) { cfg_msw &= 0xFFC0; @@ -13879,49 +13785,19 @@ static void advansys_wide_free_mem(asc_board_t *boardp) } } -static struct Scsi_Host *__devinit -advansys_board_found(int iop, struct device *dev, int bus_type) +static int __devinit advansys_board_found(struct Scsi_Host *shost, + unsigned int iop, int bus_type) { - struct Scsi_Host *shost; - struct pci_dev *pdev = bus_type == ASC_IS_PCI ? to_pci_dev(dev) : NULL; + struct pci_dev *pdev; asc_board_t *boardp; ASC_DVC_VAR *asc_dvc_varp = NULL; ADV_DVC_VAR *adv_dvc_varp = NULL; - int share_irq; - int warn_code, err_code; - int ret; - - /* - * Register the adapter, get its configuration, and - * initialize it. - */ - ASC_DBG(2, "advansys_board_found: scsi_host_alloc()\n"); - shost = scsi_host_alloc(&advansys_template, sizeof(asc_board_t)); - if (!shost) - return NULL; + int share_irq, warn_code, ret; - /* Initialize private per board data */ boardp = ASC_BOARDP(shost); - memset(boardp, 0, sizeof(asc_board_t)); boardp->id = asc_board_count++; spin_lock_init(&boardp->lock); - boardp->dev = dev; - - /* - * Handle both narrow and wide boards. - * - * If a Wide board was detected, set the board structure - * wide board flag. Set-up the board structure based on - * the board type. - */ -#ifdef CONFIG_PCI - if (bus_type == ASC_IS_PCI && - (pdev->device == PCI_DEVICE_ID_ASP_ABP940UW || - pdev->device == PCI_DEVICE_ID_38C0800_REV1 || - pdev->device == PCI_DEVICE_ID_38C1600_REV1)) { - boardp->flags |= ASC_IS_WIDE_BOARD; - } -#endif /* CONFIG_PCI */ + pdev = (bus_type == ASC_IS_PCI) ? to_pci_dev(boardp->dev) : NULL; if (ASC_NARROW_BOARD(boardp)) { ASC_DBG(1, "advansys_board_found: narrow board\n"); @@ -13956,6 +13832,7 @@ advansys_board_found(int iop, struct device *dev, int bus_type) ("advansys_board_found: board %d: ioremap(%x, %d) returned NULL\n", boardp->id, pci_resource_start(pdev, 1), boardp->asc_n_io_port); + ret = -ENODEV; goto err_shost; } adv_dvc_varp->iop_base = (AdvPortAddr)boardp->ioremap_addr @@ -13984,6 +13861,7 @@ advansys_board_found(int iop, struct device *dev, int bus_type) if (!boardp->prtbuf) { ASC_PRINT2("advansys_board_found: board %d: kmalloc(%d) " "returned NULL\n", boardp->id, ASC_PRTBUF_SIZE); + ret = -ENOMEM; goto err_unmap; } #endif /* CONFIG_PROC_FS */ @@ -14010,7 +13888,6 @@ advansys_board_found(int iop, struct device *dev, int bus_type) #endif /* CONFIG_ISA */ #ifdef CONFIG_PCI case ASC_IS_PCI: - shost->irq = asc_dvc_varp->irq_no = pdev->irq; shost->unchecked_isa_dma = FALSE; share_irq = IRQF_SHARED; break; @@ -14031,23 +13908,22 @@ advansys_board_found(int iop, struct device *dev, int bus_type) * referenced only use the bit-wise AND operator "&". */ ASC_DBG(2, "advansys_board_found: AscInitGetConfig()\n"); - err_code = AscInitGetConfig(boardp); + ret = AscInitGetConfig(boardp) ? -ENODEV : 0; } else { #ifdef CONFIG_PCI /* * For Wide boards set PCI information before calling * AdvInitGetConfig(). */ - shost->irq = adv_dvc_varp->irq_no = pdev->irq; shost->unchecked_isa_dma = FALSE; share_irq = IRQF_SHARED; ASC_DBG(2, "advansys_board_found: AdvInitGetConfig()\n"); - err_code = AdvInitGetConfig(pdev, boardp); + ret = AdvInitGetConfig(pdev, boardp) ? -ENODEV : 0; #endif /* CONFIG_PCI */ } - if (err_code != 0) + if (ret) goto err_free_proc; /* @@ -14091,17 +13967,9 @@ advansys_board_found(int iop, struct device *dev, int bus_type) * Modify board configuration. */ ASC_DBG(2, "advansys_board_found: AscInitSetConfig()\n"); - err_code = AscInitSetConfig(pdev, boardp); - if (err_code) + ret = AscInitSetConfig(pdev, boardp) ? -ENODEV : 0; + if (ret) goto err_free_proc; - - /* - * Finish initializing the 'Scsi_Host' structure. - */ - /* AscInitSetConfig() will set the IRQ for non-PCI boards. */ - if ((asc_dvc_varp->bus_type & ASC_IS_PCI) == 0) { - shost->irq = asc_dvc_varp->irq_no; - } } else { ADVEEP_3550_CONFIG *ep_3550; ADVEEP_38C0800_CONFIG *ep_38C0800; @@ -14346,24 +14214,24 @@ advansys_board_found(int iop, struct device *dev, int bus_type) #endif /* CONFIG_ISA */ /* Register IRQ Number. */ - ASC_DBG1(2, "advansys_board_found: request_irq() %d\n", shost->irq); + ASC_DBG1(2, "advansys_board_found: request_irq() %d\n", boardp->irq); - ret = request_irq(shost->irq, advansys_interrupt, share_irq, + ret = request_irq(boardp->irq, advansys_interrupt, share_irq, DRV_NAME, shost); if (ret) { if (ret == -EBUSY) { ASC_PRINT2 ("advansys_board_found: board %d: request_irq(): IRQ 0x%x already in use.\n", - boardp->id, shost->irq); + boardp->id, boardp->irq); } else if (ret == -EINVAL) { ASC_PRINT2 ("advansys_board_found: board %d: request_irq(): IRQ 0x%x not valid.\n", - boardp->id, shost->irq); + boardp->id, boardp->irq); } else { ASC_PRINT3 ("advansys_board_found: board %d: request_irq(): IRQ 0x%x failed with %d\n", - boardp->id, shost->irq, ret); + boardp->id, boardp->irq, ret); } goto err_free_dma; } @@ -14374,33 +14242,35 @@ advansys_board_found(int iop, struct device *dev, int bus_type) if (ASC_NARROW_BOARD(boardp)) { ASC_DBG(2, "advansys_board_found: AscInitAsc1000Driver()\n"); warn_code = AscInitAsc1000Driver(asc_dvc_varp); - err_code = asc_dvc_varp->err_code; - if (warn_code || err_code) { - ASC_PRINT4 - ("advansys_board_found: board %d error: init_state 0x%x, warn 0x%x, error 0x%x\n", - boardp->id, - asc_dvc_varp->init_state, warn_code, err_code); + if (warn_code || asc_dvc_varp->err_code) { + ASC_PRINT4("advansys_board_found: board %d error: " + "init_state 0x%x, warn 0x%x, error 0x%x\n", + boardp->id, asc_dvc_varp->init_state, + warn_code, asc_dvc_varp->err_code); + if (asc_dvc_varp->err_code) + ret = -ENODEV; } } else { - err_code = advansys_wide_init_chip(boardp, adv_dvc_varp); + if (advansys_wide_init_chip(boardp, adv_dvc_varp)) + ret = -ENODEV; } - if (err_code != 0) + if (ret) goto err_free_wide_mem; ASC_DBG_PRT_SCSI_HOST(2, shost); - ret = scsi_add_host(shost, dev); + ret = scsi_add_host(shost, boardp->dev); if (ret) goto err_free_wide_mem; scsi_scan_host(shost); - return shost; + return 0; err_free_wide_mem: advansys_wide_free_mem(boardp); - free_irq(shost->irq, shost); + free_irq(boardp->irq, shost); err_free_dma: if (shost->dma_channel != NO_ISA_DMA) free_dma(shost->dma_channel); @@ -14410,8 +14280,7 @@ advansys_board_found(int iop, struct device *dev, int bus_type) if (boardp->ioremap_addr) iounmap(boardp->ioremap_addr); err_shost: - scsi_host_put(shost); - return NULL; + return ret; } /* @@ -14426,7 +14295,7 @@ static int advansys_release(struct Scsi_Host *shost) ASC_DBG(1, "advansys_release: begin\n"); scsi_remove_host(shost); boardp = ASC_BOARDP(shost); - free_irq(shost->irq, shost); + free_irq(boardp->irq, shost); if (shost->dma_channel != NO_ISA_DMA) { ASC_DBG(1, "advansys_release: free_dma()\n"); free_dma(shost->dma_channel); @@ -14448,10 +14317,28 @@ static PortAddr _asc_def_iop_base[ASC_IOADR_TABLE_MAX_IX] __devinitdata = { 0x0210, 0x0230, 0x0250, 0x0330 }; +/* + * The ISA IRQ number is found in bits 2 and 3 of the CfgLsw. It decodes as: + * 00: 10 + * 01: 11 + * 10: 12 + * 11: 15 + */ +static unsigned int __devinit advansys_isa_irq_no(PortAddr iop_base) +{ + unsigned short cfg_lsw = AscGetChipCfgLsw(iop_base); + unsigned int chip_irq = ((cfg_lsw >> 2) & 0x03) + 10; + if (chip_irq == 13) + chip_irq = 15; + return chip_irq; +} + static int __devinit advansys_isa_probe(struct device *dev, unsigned int id) { + int err = -ENODEV; PortAddr iop_base = _asc_def_iop_base[id]; struct Scsi_Host *shost; + struct asc_board *board; if (!request_region(iop_base, ASC_IOADR_GAP, DRV_NAME)) { ASC_DBG1(1, "advansys_isa_match: I/O port 0x%x busy\n", @@ -14460,20 +14347,31 @@ static int __devinit advansys_isa_probe(struct device *dev, unsigned int id) } ASC_DBG1(1, "advansys_isa_match: probing I/O port 0x%x\n", iop_base); if (!AscFindSignature(iop_base)) - goto nodev; + goto release_region; if (!(AscGetChipVersion(iop_base, ASC_IS_ISA) & ASC_CHIP_VER_ISA_BIT)) - goto nodev; + goto release_region; - shost = advansys_board_found(iop_base, dev, ASC_IS_ISA); + err = -ENOMEM; + shost = scsi_host_alloc(&advansys_template, sizeof(*board)); if (!shost) - goto nodev; + goto release_region; + + board = ASC_BOARDP(shost); + board->irq = advansys_isa_irq_no(iop_base); + board->dev = dev; + + err = advansys_board_found(shost, iop_base, ASC_IS_ISA); + if (err) + goto free_host; dev_set_drvdata(dev, shost); return 0; - nodev: + free_host: + scsi_host_put(shost); + release_region: release_region(iop_base, ASC_IOADR_GAP); - return -ENODEV; + return err; } static int __devexit advansys_isa_remove(struct device *dev, unsigned int id) @@ -14493,10 +14391,32 @@ static struct isa_driver advansys_isa_driver = { }, }; +/* + * The VLB IRQ number is found in bits 2 to 4 of the CfgLsw. It decodes as: + * 000: invalid + * 001: 10 + * 010: 11 + * 011: 12 + * 100: invalid + * 101: 14 + * 110: 15 + * 111: invalid + */ +static unsigned int __devinit advansys_vlb_irq_no(PortAddr iop_base) +{ + unsigned short cfg_lsw = AscGetChipCfgLsw(iop_base); + unsigned int chip_irq = ((cfg_lsw >> 2) & 0x07) + 9; + if ((chip_irq < 10) || (chip_irq == 13) || (chip_irq > 15)) + return 0; + return chip_irq; +} + static int __devinit advansys_vlb_probe(struct device *dev, unsigned int id) { + int err = -ENODEV; PortAddr iop_base = _asc_def_iop_base[id]; struct Scsi_Host *shost; + struct asc_board *board; if (!request_region(iop_base, ASC_IOADR_GAP, DRV_NAME)) { ASC_DBG1(1, "advansys_vlb_match: I/O port 0x%x busy\n", @@ -14505,23 +14425,34 @@ static int __devinit advansys_vlb_probe(struct device *dev, unsigned int id) } ASC_DBG1(1, "advansys_vlb_match: probing I/O port 0x%x\n", iop_base); if (!AscFindSignature(iop_base)) - goto nodev; + goto release_region; /* * I don't think this condition can actually happen, but the old * driver did it, and the chances of finding a VLB setup in 2007 * to do testing with is slight to none. */ if (AscGetChipVersion(iop_base, ASC_IS_VL) > ASC_CHIP_MAX_VER_VL) - goto nodev; + goto release_region; - shost = advansys_board_found(iop_base, dev, ASC_IS_VL); + err = -ENOMEM; + shost = scsi_host_alloc(&advansys_template, sizeof(*board)); if (!shost) - goto nodev; + goto release_region; + + board = ASC_BOARDP(shost); + board->irq = advansys_vlb_irq_no(iop_base); + board->dev = dev; + + err = advansys_board_found(shost, iop_base, ASC_IS_VL); + if (err) + goto free_host; dev_set_drvdata(dev, shost); return 0; - nodev: + free_host: + scsi_host_put(shost); + release_region: release_region(iop_base, ASC_IOADR_GAP); return -ENODEV; } @@ -14551,9 +14482,29 @@ struct eisa_scsi_data { struct Scsi_Host *host[2]; }; +/* + * The EISA IRQ number is found in bits 8 to 10 of the CfgLsw. It decodes as: + * 000: 10 + * 001: 11 + * 010: 12 + * 011: invalid + * 100: 14 + * 101: 15 + * 110: invalid + * 111: invalid + */ +static unsigned int __devinit advansys_eisa_irq_no(struct eisa_device *edev) +{ + unsigned short cfg_lsw = inw(edev->base_addr + 0xc86); + unsigned int chip_irq = ((cfg_lsw >> 8) & 0x07) + 10; + if ((chip_irq == 13) || (chip_irq > 15)) + return 0; + return chip_irq; +} + static int __devinit advansys_eisa_probe(struct device *dev) { - int i, ioport; + int i, ioport, irq = 0; int err; struct eisa_device *edev = to_eisa_device(dev); struct eisa_scsi_data *data; @@ -14566,6 +14517,8 @@ static int __devinit advansys_eisa_probe(struct device *dev) err = -ENODEV; for (i = 0; i < 2; i++, ioport += 0x20) { + struct asc_board *board; + struct Scsi_Host *shost; if (!request_region(ioport, ASC_IOADR_GAP, DRV_NAME)) { printk(KERN_WARNING "Region %x-%x busy\n", ioport, ioport + ASC_IOADR_GAP - 1); @@ -14584,20 +14537,40 @@ static int __devinit advansys_eisa_probe(struct device *dev) * test with. */ inw(ioport + 4); - data->host[i] = advansys_board_found(ioport, dev, ASC_IS_EISA); - if (data->host[i]) { - err = 0; - } else { - release_region(ioport, ASC_IOADR_GAP); + + if (!irq) + irq = advansys_eisa_irq_no(edev); + + err = -ENOMEM; + shost = scsi_host_alloc(&advansys_template, sizeof(*board)); + if (!shost) + goto release_region; + + board = ASC_BOARDP(shost); + board->irq = irq; + board->dev = dev; + + err = advansys_board_found(shost, ioport, ASC_IS_EISA); + if (!err) { + data->host[i] = shost; + continue; } - } - if (err) { - kfree(data); - } else { - dev_set_drvdata(dev, data); + scsi_host_put(shost); + release_region: + release_region(ioport, ASC_IOADR_GAP); + break; } + if (err) + goto free_data; + dev_set_drvdata(dev, data); + return 0; + + free_data: + kfree(data->host[0]); + kfree(data->host[1]); + kfree(data); fail: return err; } @@ -14667,6 +14640,7 @@ advansys_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { int err, ioport; struct Scsi_Host *shost; + struct asc_board *board; err = pci_enable_device(pdev); if (err) @@ -14677,20 +14651,37 @@ advansys_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) pci_set_master(pdev); advansys_set_latency(pdev); + err = -ENODEV; if (pci_resource_len(pdev, 0) == 0) - goto nodev; + goto release_region; ioport = pci_resource_start(pdev, 0); - shost = advansys_board_found(ioport, &pdev->dev, ASC_IS_PCI); + err = -ENOMEM; + shost = scsi_host_alloc(&advansys_template, sizeof(*board)); if (!shost) - goto nodev; + goto release_region; + + board = ASC_BOARDP(shost); + board->irq = pdev->irq; + board->dev = &pdev->dev; + + if (pdev->device == PCI_DEVICE_ID_ASP_ABP940UW || + pdev->device == PCI_DEVICE_ID_38C0800_REV1 || + pdev->device == PCI_DEVICE_ID_38C1600_REV1) { + board->flags |= ASC_IS_WIDE_BOARD; + } + + err = advansys_board_found(shost, ioport, ASC_IS_PCI); + if (err) + goto free_host; pci_set_drvdata(pdev, shost); return 0; - nodev: - err = -ENODEV; + free_host: + scsi_host_put(shost); + release_region: pci_release_regions(pdev); disable_device: pci_disable_device(pdev); -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 09/17] advansys: Merge ASC_IERR definitions 2007-09-15 14:39 ` James Bottomley ` (8 preceding siblings ...) 2007-09-16 15:37 ` [PATCH 08/17] advansys: Sort out irq number mess Matthew Wilcox @ 2007-09-16 15:37 ` Matthew Wilcox 2007-09-16 15:37 ` [PATCH 10/17] advansys: Remove asc_board_t typedef and ASC_BOARDP macro Matthew Wilcox ` (8 subsequent siblings) 18 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-16 15:37 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox There were two blocks of ASC_IERR definitions; one for narrow and one for wide boards. Some of the same names were used (with the same values), and some of the same values were used with different names. This could only lead to confusion, so I unified them in one block of definitions with no overlapping values. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 40 ++++++++++++++++------------------------ 1 files changed, 16 insertions(+), 24 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index ad9639d..4c792db 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -459,14 +459,22 @@ typedef struct asc_risc_sg_list_q { #define ASC_WARN_CFG_MSW_RECOVER 0x0040 /* - * Error code values are set in ASC_DVC_VAR 'err_code'. - */ -#define ASC_IERR_MCODE_CHKSUM 0x0002 -#define ASC_IERR_SET_PC_ADDR 0x0004 -#define ASC_IERR_START_STOP_CHIP 0x0008 -#define ASC_IERR_SET_SCSI_ID 0x0080 -#define ASC_IERR_BAD_SIGNATURE 0x0200 -#define ASC_IERR_NO_BUS_TYPE 0x0400 + * Error code values are set in {ASC/ADV}_DVC_VAR 'err_code'. + */ +#define ASC_IERR_NO_CARRIER 0x0001 /* No more carrier memory */ +#define ASC_IERR_MCODE_CHKSUM 0x0002 /* micro code check sum error */ +#define ASC_IERR_SET_PC_ADDR 0x0004 +#define ASC_IERR_START_STOP_CHIP 0x0008 /* start/stop chip failed */ +#define ASC_IERR_ILLEGAL_CONNECTION 0x0010 /* Illegal cable connection */ +#define ASC_IERR_SINGLE_END_DEVICE 0x0020 /* SE device on DIFF bus */ +#define ASC_IERR_REVERSED_CABLE 0x0040 /* Narrow flat cable reversed */ +#define ASC_IERR_SET_SCSI_ID 0x0080 /* set SCSI ID failed */ +#define ASC_IERR_HVD_DEVICE 0x0100 /* HVD device on LVD port */ +#define ASC_IERR_BAD_SIGNATURE 0x0200 /* signature not found */ +#define ASC_IERR_NO_BUS_TYPE 0x0400 +#define ASC_IERR_BIST_PRE_TEST 0x0800 /* BIST pre-test error */ +#define ASC_IERR_BIST_RAM_TEST 0x1000 /* BIST RAM test error */ +#define ASC_IERR_BAD_CHIPTYPE 0x2000 /* Invalid chip_type setting */ #define ASC_DEF_MAX_TOTAL_QNG (0xF0) #define ASC_MIN_TAG_Q_PER_DVC (0x04) @@ -1698,22 +1706,6 @@ typedef struct adveep_38C1600_config { #define ADV_MAX_LUN 7 /* max. logical unit number */ /* - * Error code values are set in ADV_DVC_VAR 'err_code'. - */ -#define ASC_IERR_MCODE_CHKSUM 0x0002 /* micro code check sum error */ -#define ASC_IERR_NO_CARRIER 0x0004 /* No more carrier memory. */ -#define ASC_IERR_START_STOP_CHIP 0x0008 /* start/stop chip failed */ -#define ASC_IERR_SET_SCSI_ID 0x0080 /* set SCSI ID failed */ -#define ASC_IERR_HVD_DEVICE 0x0100 /* HVD attached to LVD connector. */ -#define ASC_IERR_BAD_SIGNATURE 0x0200 /* signature not found */ -#define ASC_IERR_ILLEGAL_CONNECTION 0x0400 /* Illegal cable connection */ -#define ASC_IERR_SINGLE_END_DEVICE 0x0800 /* Single-end used w/differential */ -#define ASC_IERR_REVERSED_CABLE 0x1000 /* Narrow flat cable reversed */ -#define ASC_IERR_BIST_PRE_TEST 0x2000 /* BIST pre-test error */ -#define ASC_IERR_BIST_RAM_TEST 0x4000 /* BIST RAM test error */ -#define ASC_IERR_BAD_CHIPTYPE 0x8000 /* Invalid 'chip_type' setting. */ - -/* * Fixed locations of microcode operating variables. */ #define ASC_MC_CODE_BEGIN_ADDR 0x0028 /* microcode start address */ -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 10/17] advansys: Remove asc_board_t typedef and ASC_BOARDP macro 2007-09-15 14:39 ` James Bottomley ` (9 preceding siblings ...) 2007-09-16 15:37 ` [PATCH 09/17] advansys: Merge ASC_IERR definitions Matthew Wilcox @ 2007-09-16 15:37 ` Matthew Wilcox 2007-09-16 16:14 ` Matthew Wilcox 2007-09-16 15:37 ` [PATCH 11/17] advansys: Remove library version & serial numbers Matthew Wilcox ` (7 subsequent siblings) 18 siblings, 1 reply; 52+ messages in thread From: Matthew Wilcox @ 2007-09-16 15:37 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox asc_board_t was simply a typedef for struct asc_board. ASC_BOARDP() can be replaced by shost_priv() except in the ASC_STATS* macros which rely on the cast; add an explicit cast there. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 132 ++++++++++++++++++----------------------------- 1 files changed, 51 insertions(+), 81 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 4c792db..e09ab95 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -2203,10 +2203,7 @@ do { \ (sizeof(ADV_SG_BLOCK) * \ ((ADV_MAX_SG_LIST + (NO_OF_SG_PER_BLOCK - 1))/NO_OF_SG_PER_BLOCK)) -/* Reference Scsi_Host hostdata */ -#define ASC_BOARDP(host) ((asc_board_t *) &((host)->hostdata)) - -/* asc_board_t flags */ +/* struct asc_board flags */ #define ASC_IS_WIDE_BOARD 0x04 /* AdvanSys Wide Board */ #define ASC_NARROW_BOARD(boardp) (((boardp)->flags & ASC_IS_WIDE_BOARD) == 0) @@ -2244,15 +2241,12 @@ do { \ #define HOST_BYTE(byte) ((byte) << 16) #define DRIVER_BYTE(byte) ((byte) << 24) +#define ASC_STATS(shost, counter) ASC_STATS_ADD(shost, counter, 1) #ifndef ADVANSYS_STATS -#define ASC_STATS(shost, counter) #define ASC_STATS_ADD(shost, counter, count) #else /* ADVANSYS_STATS */ -#define ASC_STATS(shost, counter) \ - (ASC_BOARDP(shost)->asc_stats.counter++) - #define ASC_STATS_ADD(shost, counter, count) \ - (ASC_BOARDP(shost)->asc_stats.counter += (count)) + (((struct asc_board *) shost_priv(shost))->asc_stats.counter += (count)) #endif /* ADVANSYS_STATS */ #define ASC_CEILING(val, unit) (((val) + ((unit) - 1))/(unit)) @@ -2475,7 +2469,7 @@ typedef struct adv_req { * of the 'Scsi_Host' structure starting at the 'hostdata' * field. It is guaranteed to be allocated from DMA-able memory. */ -typedef struct asc_board { +struct asc_board { struct device *dev; int id; /* Board Id */ uint flags; /* Board flags */ @@ -2523,7 +2517,7 @@ typedef struct asc_board { ushort bios_version; /* BIOS Version. */ ushort bios_codeseg; /* BIOS Code Segment. */ ushort bios_codelen; /* BIOS Code Segment Length. */ -} asc_board_t; +} asc_board; #define adv_dvc_to_board(adv_dvc) container_of(adv_dvc, struct asc_board, \ dvc_var.adv_dvc_var) @@ -2543,9 +2537,7 @@ static int asc_dbglvl = 3; */ static void asc_prt_scsi_host(struct Scsi_Host *s) { - asc_board_t *boardp; - - boardp = ASC_BOARDP(s); + struct asc_board *boardp = shost_priv(s); printk("Scsi_Host at addr 0x%lx\n", (ulong)s); printk(" host_busy %u, host_no %d, last_reset %d,\n", @@ -2561,11 +2553,11 @@ static void asc_prt_scsi_host(struct Scsi_Host *s) s->cmd_per_lun, s->sg_tablesize, s->unchecked_isa_dma); if (ASC_NARROW_BOARD(boardp)) { - asc_prt_asc_dvc_var(&ASC_BOARDP(s)->dvc_var.asc_dvc_var); - asc_prt_asc_dvc_cfg(&ASC_BOARDP(s)->dvc_cfg.asc_dvc_cfg); + asc_prt_asc_dvc_var(boardp->dvc_var.asc_dvc_var); + asc_prt_asc_dvc_cfg(boardp->dvc_cfg.asc_dvc_cfg); } else { - asc_prt_adv_dvc_var(&ASC_BOARDP(s)->dvc_var.adv_dvc_var); - asc_prt_adv_dvc_cfg(&ASC_BOARDP(s)->dvc_cfg.adv_dvc_cfg); + asc_prt_adv_dvc_var(boardp->dvc_var.adv_dvc_var); + asc_prt_adv_dvc_cfg(boardp->dvc_cfg.adv_dvc_cfg); } } @@ -2914,13 +2906,12 @@ static void asc_prt_hex(char *f, uchar *s, int l) static const char *advansys_info(struct Scsi_Host *shost) { static char info[ASC_INFO_SIZE]; - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(shost); ASC_DVC_VAR *asc_dvc_varp; ADV_DVC_VAR *adv_dvc_varp; char *busname; char *widename = NULL; - boardp = ASC_BOARDP(shost); if (ASC_NARROW_BOARD(boardp)) { asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; ASC_DBG(1, "advansys_info: begin\n"); @@ -3032,14 +3023,13 @@ static int asc_prt_line(char *buf, int buflen, char *fmt, ...) */ static int asc_prt_board_devices(struct Scsi_Host *shost, char *cp, int cplen) { - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(shost); int leftlen; int totlen; int len; int chip_scsi_id; int i; - boardp = ASC_BOARDP(shost); leftlen = cplen; totlen = len = 0; @@ -3073,13 +3063,12 @@ static int asc_prt_board_devices(struct Scsi_Host *shost, char *cp, int cplen) */ static int asc_prt_adv_bios(struct Scsi_Host *shost, char *cp, int cplen) { - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(shost); int leftlen; int totlen; int len; ushort major, minor, letter; - boardp = ASC_BOARDP(shost); leftlen = cplen; totlen = len = 0; @@ -3239,7 +3228,7 @@ static int asc_get_eeprom_string(ushort *serialnum, uchar *cp) */ static int asc_prt_asc_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen) { - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(shost); ASC_DVC_VAR *asc_dvc_varp; int leftlen; int totlen; @@ -3251,7 +3240,6 @@ static int asc_prt_asc_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen #endif /* CONFIG_ISA */ uchar serialstr[13]; - boardp = ASC_BOARDP(shost); asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; ep = &boardp->eep_config.asc_eep; @@ -3373,7 +3361,7 @@ static int asc_prt_asc_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen */ static int asc_prt_adv_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen) { - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(shost); ADV_DVC_VAR *adv_dvc_varp; int leftlen; int totlen; @@ -3388,7 +3376,6 @@ static int asc_prt_adv_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen ushort *wordp; ushort sdtr_speed = 0; - boardp = ASC_BOARDP(shost); adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { ep_3550 = &boardp->eep_config.adv_3550_eep; @@ -3660,14 +3647,12 @@ static int asc_prt_adv_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen */ static int asc_prt_driver_conf(struct Scsi_Host *shost, char *cp, int cplen) { - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(shost); int leftlen; int totlen; int len; int chip_scsi_id; - boardp = ASC_BOARDP(shost); - leftlen = cplen; totlen = len = 0; @@ -3724,7 +3709,7 @@ static int asc_prt_driver_conf(struct Scsi_Host *shost, char *cp, int cplen) */ static int asc_prt_asc_board_info(struct Scsi_Host *shost, char *cp, int cplen) { - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(shost); int chip_scsi_id; int leftlen; int totlen; @@ -3734,7 +3719,6 @@ static int asc_prt_asc_board_info(struct Scsi_Host *shost, char *cp, int cplen) int i; int renegotiate = 0; - boardp = ASC_BOARDP(shost); v = &boardp->dvc_var.asc_dvc_var; c = &boardp->dvc_cfg.asc_dvc_cfg; chip_scsi_id = c->chip_scsi_id; @@ -3912,7 +3896,7 @@ static int asc_prt_asc_board_info(struct Scsi_Host *shost, char *cp, int cplen) */ static int asc_prt_adv_board_info(struct Scsi_Host *shost, char *cp, int cplen) { - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(shost); int leftlen; int totlen; int len; @@ -3929,7 +3913,6 @@ static int asc_prt_adv_board_info(struct Scsi_Host *shost, char *cp, int cplen) ushort period = 0; int renegotiate = 0; - boardp = ASC_BOARDP(shost); v = &boardp->dvc_var.adv_dvc_var; c = &boardp->dvc_cfg.adv_dvc_cfg; iop_base = v->iop_base; @@ -4192,17 +4175,11 @@ asc_proc_copy(off_t advoffset, off_t offset, char *curbuf, int leftlen, */ static int asc_prt_board_stats(struct Scsi_Host *shost, char *cp, int cplen) { - int leftlen; - int totlen; - int len; - struct asc_stats *s; - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(shost); + struct asc_stats *s = &boardp->asc_stats; - leftlen = cplen; - totlen = len = 0; - - boardp = ASC_BOARDP(shost); - s = &boardp->asc_stats; + int leftlen = cplen; + int len, totlen = 0; len = asc_prt_line(cp, leftlen, "\nLinux Driver Statistics for AdvanSys SCSI Host %d:\n", @@ -4309,7 +4286,7 @@ static int advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, off_t offset, int length, int inout) { - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(shost); char *cp; int cplen; int cnt; @@ -4323,16 +4300,13 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, /* * User write not supported. */ - if (inout == TRUE) { - return (-ENOSYS); - } + if (inout == TRUE) + return -ENOSYS; /* * User read of /proc/scsi/advansys/[0...] file. */ - boardp = ASC_BOARDP(shost); - /* Copy read data starting at the beginning of the buffer. */ *start = buffer; curbuf = buffer; @@ -4477,7 +4451,7 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, static void asc_scsi_done(struct scsi_cmnd *scp) { - struct asc_board *boardp = ASC_BOARDP(scp->device->host); + struct asc_board *boardp = shost_priv(scp->device->host); if (scp->use_sg) dma_unmap_sg(boardp->dev, @@ -8376,7 +8350,7 @@ static void adv_async_callback(ADV_DVC_VAR *adv_dvc_varp, uchar code) */ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) { - asc_board_t *boardp; + struct asc_board *boardp; adv_req_t *reqp; adv_sgblk_t *sgblkp; struct scsi_cmnd *scp; @@ -8420,7 +8394,7 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) ASC_STATS(shost, callback); ASC_DBG1(1, "adv_isr_callback: shost 0x%lx\n", (ulong)shost); - boardp = ASC_BOARDP(shost); + boardp = shost_priv(shost); BUG_ON(adv_dvc_varp != &boardp->dvc_var.adv_dvc_var); /* @@ -8825,7 +8799,7 @@ static int AscIsrChipHalted(ASC_DVC_VAR *asc_dvc) uchar cur_dvc_qng; uchar asyn_sdtr; uchar scsi_status; - asc_board_t *boardp; + struct asc_board *boardp; BUG_ON(!asc_dvc->drv_ptr); boardp = asc_dvc->drv_ptr; @@ -9346,7 +9320,7 @@ _AscCopyLramScsiDoneQ(PortAddr iop_base, */ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) { - asc_board_t *boardp; + struct asc_board *boardp; struct scsi_cmnd *scp; struct Scsi_Host *shost; @@ -9371,7 +9345,7 @@ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) ASC_STATS(shost, callback); ASC_DBG1(1, "asc_isr_callback: shost 0x%lx\n", (ulong)shost); - boardp = ASC_BOARDP(shost); + boardp = shost_priv(shost); BUG_ON(asc_dvc_varp != &boardp->dvc_var.asc_dvc_var); /* @@ -9727,7 +9701,7 @@ static int AscISR(ASC_DVC_VAR *asc_dvc) static int advansys_reset(struct scsi_cmnd *scp) { struct Scsi_Host *shost = scp->device->host; - struct asc_board *boardp = ASC_BOARDP(shost); + struct asc_board *boardp = shost_priv(shost); unsigned long flags; int status; int ret = SUCCESS; @@ -9810,11 +9784,10 @@ static int advansys_biosparam(struct scsi_device *sdev, struct block_device *bdev, sector_t capacity, int ip[]) { - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(sdev->host); ASC_DBG(1, "advansys_biosparam: begin\n"); ASC_STATS(sdev->host, biosparam); - boardp = ASC_BOARDP(sdev->host); if (ASC_NARROW_BOARD(boardp)) { if ((boardp->dvc_var.asc_dvc_var.dvc_cntl & ASC_CNTL_BIOS_GT_1GB) && capacity > 0x200000) { @@ -9848,7 +9821,7 @@ static irqreturn_t advansys_interrupt(int irq, void *dev_id) { unsigned long flags; struct Scsi_Host *shost = dev_id; - asc_board_t *boardp = ASC_BOARDP(shost); + struct asc_board *boardp = shost_priv(shost); irqreturn_t result = IRQ_NONE; ASC_DBG1(2, "advansys_interrupt: boardp 0x%p\n", boardp); @@ -10110,7 +10083,7 @@ advansys_wide_slave_configure(struct scsi_device *sdev, ADV_DVC_VAR *adv_dvc) */ static int advansys_slave_configure(struct scsi_device *sdev) { - asc_board_t *boardp = ASC_BOARDP(sdev->host); + struct asc_board *boardp = shost_priv(sdev->host); if (ASC_NARROW_BOARD(boardp)) advansys_narrow_slave_configure(sdev, @@ -10122,7 +10095,7 @@ static int advansys_slave_configure(struct scsi_device *sdev) return 0; } -static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, +static int asc_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, struct asc_scsi_q *asc_scsi_q) { memset(asc_scsi_q, 0, sizeof(*asc_scsi_q)); @@ -10257,7 +10230,7 @@ static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, * ADV_ERROR(-1) - SG List creation failed */ static int -adv_get_sglist(asc_board_t *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, +adv_get_sglist(struct asc_board *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, int use_sg) { adv_sgblk_t *sgblkp; @@ -10367,7 +10340,7 @@ adv_get_sglist(asc_board_t *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, * to little-endian order. */ static int -adv_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, +adv_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, ADV_SCSI_REQ_Q **adv_scsiqpp) { adv_req_t *reqp; @@ -11255,7 +11228,7 @@ static int AdvExeScsiQueue(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq) static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) { int ret, err_code; - asc_board_t *boardp = ASC_BOARDP(scp->device->host); + struct asc_board *boardp = shost_priv(scp->device->host); ASC_DBG1(1, "asc_execute_scsi_cmnd: scp 0x%p\n", scp); @@ -11346,7 +11319,7 @@ static int advansys_queuecommand(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd *)) { struct Scsi_Host *shost = scp->device->host; - asc_board_t *boardp = ASC_BOARDP(shost); + struct asc_board *boardp = shost_priv(shost); unsigned long flags; int asc_res, result = 0; @@ -12094,7 +12067,7 @@ static ushort __devinit AscInitFromEEP(ASC_DVC_VAR *asc_dvc) return (warn_code); } -static int __devinit AscInitGetConfig(asc_board_t *boardp) +static int __devinit AscInitGetConfig(struct asc_board *boardp) { ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; unsigned short warn_code = 0; @@ -12151,7 +12124,7 @@ static int __devinit AscInitGetConfig(asc_board_t *boardp) return asc_dvc->err_code; } -static int __devinit AscInitSetConfig(struct pci_dev *pdev, asc_board_t *boardp) +static int __devinit AscInitSetConfig(struct pci_dev *pdev, struct asc_board *boardp) { ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; PortAddr iop_base = asc_dvc->iop_base; @@ -13548,7 +13521,7 @@ static int __devinit AdvInitFrom38C1600EEP(ADV_DVC_VAR *asc_dvc) * then 0 is returned. */ static int __devinit -AdvInitGetConfig(struct pci_dev *pdev, asc_board_t *boardp) +AdvInitGetConfig(struct pci_dev *pdev, struct asc_board *boardp) { ADV_DVC_VAR *asc_dvc = &boardp->dvc_var.adv_dvc_var; unsigned short warn_code = 0; @@ -13660,7 +13633,7 @@ static struct scsi_host_template advansys_template = { }; static int __devinit -advansys_wide_init_chip(asc_board_t *boardp, ADV_DVC_VAR *adv_dvc_varp) +advansys_wide_init_chip(struct asc_board *boardp, ADV_DVC_VAR *adv_dvc_varp) { int req_cnt = 0; adv_req_t *reqp = NULL; @@ -13764,7 +13737,7 @@ advansys_wide_init_chip(asc_board_t *boardp, ADV_DVC_VAR *adv_dvc_varp) return err_code; } -static void advansys_wide_free_mem(asc_board_t *boardp) +static void advansys_wide_free_mem(struct asc_board *boardp) { kfree(boardp->carrp); boardp->carrp = NULL; @@ -13781,12 +13754,11 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, unsigned int iop, int bus_type) { struct pci_dev *pdev; - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(shost); ASC_DVC_VAR *asc_dvc_varp = NULL; ADV_DVC_VAR *adv_dvc_varp = NULL; int share_irq, warn_code, ret; - boardp = ASC_BOARDP(shost); boardp->id = asc_board_count++; spin_lock_init(&boardp->lock); pdev = (bus_type == ASC_IS_PCI) ? to_pci_dev(boardp->dev) : NULL; @@ -14282,11 +14254,9 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, */ static int advansys_release(struct Scsi_Host *shost) { - asc_board_t *boardp; - + struct asc_board *boardp = shost_priv(shost); ASC_DBG(1, "advansys_release: begin\n"); scsi_remove_host(shost); - boardp = ASC_BOARDP(shost); free_irq(boardp->irq, shost); if (shost->dma_channel != NO_ISA_DMA) { ASC_DBG(1, "advansys_release: free_dma()\n"); @@ -14348,7 +14318,7 @@ static int __devinit advansys_isa_probe(struct device *dev, unsigned int id) if (!shost) goto release_region; - board = ASC_BOARDP(shost); + board = shost_priv(shost); board->irq = advansys_isa_irq_no(iop_base); board->dev = dev; @@ -14431,7 +14401,7 @@ static int __devinit advansys_vlb_probe(struct device *dev, unsigned int id) if (!shost) goto release_region; - board = ASC_BOARDP(shost); + board = shost_priv(shost); board->irq = advansys_vlb_irq_no(iop_base); board->dev = dev; @@ -14538,7 +14508,7 @@ static int __devinit advansys_eisa_probe(struct device *dev) if (!shost) goto release_region; - board = ASC_BOARDP(shost); + board = shost_priv(shost); board->irq = irq; board->dev = dev; @@ -14654,7 +14624,7 @@ advansys_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (!shost) goto release_region; - board = ASC_BOARDP(shost); + board = shost_priv(shost); board->irq = pdev->irq; board->dev = &pdev->dev; -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* Re: [PATCH 10/17] advansys: Remove asc_board_t typedef and ASC_BOARDP macro 2007-09-16 15:37 ` [PATCH 10/17] advansys: Remove asc_board_t typedef and ASC_BOARDP macro Matthew Wilcox @ 2007-09-16 16:14 ` Matthew Wilcox 0 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-16 16:14 UTC (permalink / raw) To: linux-scsi On Sun, Sep 16, 2007 at 09:37:41AM -0600, Matthew Wilcox wrote: > @@ -2475,7 +2469,7 @@ typedef struct adv_req { > * of the 'Scsi_Host' structure starting at the 'hostdata' > * field. It is guaranteed to be allocated from DMA-able memory. > */ > -typedef struct asc_board { > +struct asc_board { > struct device *dev; > int id; /* Board Id */ > uint flags; /* Board flags */ > @@ -2523,7 +2517,7 @@ typedef struct asc_board { > ushort bios_version; /* BIOS Version. */ > ushort bios_codeseg; /* BIOS Code Segment. */ > ushort bios_codelen; /* BIOS Code Segment Length. */ > -} asc_board_t; > +} asc_board; > > #define adv_dvc_to_board(adv_dvc) container_of(adv_dvc, struct asc_board, \ > dvc_var.adv_dvc_var) "oops". I'll send a replacement for this patch. I can't believe this struct is 512 bytes. -- Intel are signing my paycheques ... these opinions are still mine "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." ^ permalink raw reply [flat|nested] 52+ messages in thread
* [PATCH 11/17] advansys: Remove library version & serial numbers 2007-09-15 14:39 ` James Bottomley ` (10 preceding siblings ...) 2007-09-16 15:37 ` [PATCH 10/17] advansys: Remove asc_board_t typedef and ASC_BOARDP macro Matthew Wilcox @ 2007-09-16 15:37 ` Matthew Wilcox 2007-09-16 15:37 ` [PATCH 12/17] advansys: Sort out debug macros Matthew Wilcox ` (6 subsequent siblings) 18 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-16 15:37 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox With the ASC and ADV libraries merged into the driver, there really is no point in reporting their version numbers, or even trying to maintain them. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 60 +++++++++++----------------------------------- 1 files changed, 15 insertions(+), 45 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index e09ab95..530765f 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -77,10 +77,6 @@ /* Enable driver tracing. */ /* #define ADVANSYS_DEBUG */ -#define ASC_LIB_VERSION_MAJOR 1 -#define ASC_LIB_VERSION_MINOR 24 -#define ASC_LIB_SERIAL_NUMBER 123 - /* * Portable Data Types * @@ -554,8 +550,6 @@ typedef struct asc_dvc_cfg { uchar isa_dma_speed; uchar isa_dma_channel; uchar chip_version; - ushort lib_serial_no; - ushort lib_version; ushort mcode_date; ushort mcode_version; uchar max_tag_qng[ASC_MAX_TID + 1]; @@ -958,13 +952,6 @@ typedef struct asc_mc_saved { #define AscReadChipDvcID(port) (uchar)inp((port)+IOP_REG_ID) #define AscWriteChipDvcID(port, data) outp((port)+IOP_REG_ID, data) -#define ADV_LIB_VERSION_MAJOR 5 -#define ADV_LIB_VERSION_MINOR 14 - -/* - * Define Adv Library required special types. - */ - /* * Portable Data Types * @@ -1856,7 +1843,6 @@ typedef struct adv_dvc_cfg { ushort disc_enable; /* enable disconnection */ uchar chip_version; /* chip version */ uchar termination; /* Term. Ctrl. bits 6-5 of SCSI_CFG1 register */ - ushort lib_version; /* Adv Library version number */ ushort control_flag; /* Microcode Control Flag */ ushort mcode_date; /* Microcode date */ ushort mcode_version; /* Microcode version */ @@ -2637,18 +2623,13 @@ static void asc_prt_asc_dvc_cfg(ASC_DVC_CFG *h) printk(" disc_enable 0x%x, sdtr_enable 0x%x,\n", h->disc_enable, h->sdtr_enable); - printk - (" chip_scsi_id %d, isa_dma_speed %d, isa_dma_channel %d, chip_version %d,\n", - h->chip_scsi_id, h->isa_dma_speed, h->isa_dma_channel, - h->chip_version); - - printk - (" pci_device_id %d, lib_serial_no %u, lib_version %u, mcode_date 0x%x,\n", - to_pci_dev(h->dev)->device, h->lib_serial_no, h->lib_version, - h->mcode_date); + printk(" chip_scsi_id %d, isa_dma_speed %d, isa_dma_channel %d, " + "chip_version %d,\n", h->chip_scsi_id, h->isa_dma_speed, + h->isa_dma_channel, h->chip_version); - printk(" mcode_version %d, overrun_buf 0x%lx\n", - h->mcode_version, (ulong)h->overrun_buf); + printk(" pci_device_id %d, mcode_date 0x%x, mcode_version %d, " + "overrun_buf 0x%p\n", to_pci_dev(h->dev)->device, + h->mcode_date, h->mcode_version, h->overrun_buf); } /* @@ -2752,8 +2733,8 @@ static void asc_prt_adv_dvc_cfg(ADV_DVC_CFG *h) printk(" chip_version 0x%x, mcode_date 0x%x\n", h->chip_version, h->mcode_date); - printk(" mcode_version 0x%x, pci_device_id 0x%x, lib_version %u\n", - h->mcode_version, to_pci_dev(h->dev)->device, h->lib_version); + printk(" mcode_version 0x%x, pci_device_id 0x%x\n", + h->mcode_version, to_pci_dev(h->dev)->device); printk(" control_flag 0x%x\n", h->control_flag); } @@ -3731,15 +3712,10 @@ static int asc_prt_asc_board_info(struct Scsi_Host *shost, char *cp, int cplen) shost->host_no); ASC_PRT_NEXT(); - len = asc_prt_line(cp, leftlen, - " chip_version %u, lib_version 0x%x, lib_serial_no %u, mcode_date 0x%x\n", - c->chip_version, c->lib_version, c->lib_serial_no, - c->mcode_date); - ASC_PRT_NEXT(); - - len = asc_prt_line(cp, leftlen, - " mcode_version 0x%x, err_code %u\n", - c->mcode_version, v->err_code); + len = asc_prt_line(cp, leftlen, " chip_version %u, mcode_date 0x%x, " + "mcode_version 0x%x, err_code %u\n", + c->chip_version, c->mcode_date, c->mcode_version, + v->err_code); ASC_PRT_NEXT(); /* Current number of commands waiting for the host. */ @@ -3934,10 +3910,9 @@ static int asc_prt_adv_board_info(struct Scsi_Host *shost, char *cp, int cplen) v->err_code); ASC_PRT_NEXT(); - len = asc_prt_line(cp, leftlen, - " chip_version %u, lib_version 0x%x, mcode_date 0x%x, mcode_version 0x%x\n", - c->chip_version, c->lib_version, c->mcode_date, - c->mcode_version); + len = asc_prt_line(cp, leftlen, " chip_version %u, mcode_date 0x%x, " + "mcode_version 0x%x\n", c->chip_version, + c->mcode_date, c->mcode_version); ASC_PRT_NEXT(); AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able); @@ -11566,9 +11541,6 @@ static ushort __devinit AscInitAscDvcVar(ASC_DVC_VAR *asc_dvc) asc_dvc->cfg->sdtr_enable = ASC_SCSI_WIDTH_BIT_SET; asc_dvc->cfg->disc_enable = ASC_SCSI_WIDTH_BIT_SET; asc_dvc->cfg->chip_scsi_id = ASC_DEF_CHIP_SCSI_ID; - asc_dvc->cfg->lib_serial_no = ASC_LIB_SERIAL_NUMBER; - asc_dvc->cfg->lib_version = (ASC_LIB_VERSION_MAJOR << 8) | - ASC_LIB_VERSION_MINOR; chip_version = AscGetChipVersion(iop_base, asc_dvc->bus_type); asc_dvc->cfg->chip_version = chip_version; asc_dvc->sdtr_period_tbl[0] = SYN_XFER_NS_0; @@ -13542,8 +13514,6 @@ AdvInitGetConfig(struct pci_dev *pdev, struct asc_board *boardp) if ((cmd & PCI_COMMAND_PARITY) == 0) asc_dvc->cfg->control_flag |= CONTROL_FLAG_IGNORE_PERR; - asc_dvc->cfg->lib_version = (ADV_LIB_VERSION_MAJOR << 8) | - ADV_LIB_VERSION_MINOR; asc_dvc->cfg->chip_version = AdvGetChipVersion(iop_base, asc_dvc->bus_type); -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 12/17] advansys: Sort out debug macros 2007-09-15 14:39 ` James Bottomley ` (11 preceding siblings ...) 2007-09-16 15:37 ` [PATCH 11/17] advansys: Remove library version & serial numbers Matthew Wilcox @ 2007-09-16 15:37 ` Matthew Wilcox 2007-09-16 15:37 ` [PATCH 13/17] advansys: Remove private lock Matthew Wilcox ` (5 subsequent siblings) 18 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-16 15:37 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox Replace ASC_DBG{,1,2,3,4,5} with a single variadic macro ASC_DBG. As suggested by Jeff Garzik, include DRV_NAME and __FUNCTION__ in the output. Change all callers to no longer include the function name in the string. Enabling ADVANSYS_DEBUG to test this feature shows a lot of other problems that need to be fixed: - Reorder asc_prt_* functions now that their prototypes have been removed. - There is no longer a struct device in ASC_DVC_CFG/ADV_DVC_CFG, and it wasn't necessarily a PCI device to begin with. Print the bus_id from asc_board->dev instead. - isr_callback no longer exists. - ASC_DBG_PRT_SCSI_CMND isn't being used, so delete asc_prt_scsi_cmnd too. - A missing semicolon Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 628 ++++++++++++++++++++--------------------------- 1 files changed, 262 insertions(+), 366 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 530765f..95df291 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -75,7 +75,7 @@ #define ADVANSYS_STATS /* Enable driver tracing. */ -/* #define ADVANSYS_DEBUG */ +#undef ADVANSYS_DEBUG /* * Portable Data Types @@ -2277,13 +2277,8 @@ do { \ #ifndef ADVANSYS_DEBUG -#define ASC_DBG(lvl, s) -#define ASC_DBG1(lvl, s, a1) -#define ASC_DBG2(lvl, s, a1, a2) -#define ASC_DBG3(lvl, s, a1, a2, a3) -#define ASC_DBG4(lvl, s, a1, a2, a3, a4) +#define ASC_DBG(lvl, s...) #define ASC_DBG_PRT_SCSI_HOST(lvl, s) -#define ASC_DBG_PRT_SCSI_CMND(lvl, s) #define ASC_DBG_PRT_ASC_SCSI_Q(lvl, scsiqp) #define ASC_DBG_PRT_ADV_SCSI_REQ_Q(lvl, scsiqp) #define ASC_DBG_PRT_ASC_QDONE_INFO(lvl, qdone) @@ -2302,40 +2297,11 @@ do { \ * 2-N: Verbose Tracing */ -#define ASC_DBG(lvl, s) \ - { \ - if (asc_dbglvl >= (lvl)) { \ - printk(s); \ - } \ - } - -#define ASC_DBG1(lvl, s, a1) \ - { \ - if (asc_dbglvl >= (lvl)) { \ - printk((s), (a1)); \ - } \ - } - -#define ASC_DBG2(lvl, s, a1, a2) \ - { \ - if (asc_dbglvl >= (lvl)) { \ - printk((s), (a1), (a2)); \ - } \ - } - -#define ASC_DBG3(lvl, s, a1, a2, a3) \ - { \ - if (asc_dbglvl >= (lvl)) { \ - printk((s), (a1), (a2), (a3)); \ - } \ - } - -#define ASC_DBG4(lvl, s, a1, a2, a3, a4) \ - { \ - if (asc_dbglvl >= (lvl)) { \ - printk((s), (a1), (a2), (a3), (a4)); \ - } \ - } +#define ASC_DBG(lvl, format, arg...) { \ + if (asc_dbglvl >= (lvl)) \ + printk(KERN_DEBUG "%s: %s: " format, DRV_NAME, \ + __FUNCTION__ , ## arg); \ +} #define ASC_DBG_PRT_SCSI_HOST(lvl, s) \ { \ @@ -2344,13 +2310,6 @@ do { \ } \ } -#define ASC_DBG_PRT_SCSI_CMND(lvl, s) \ - { \ - if (asc_dbglvl >= (lvl)) { \ - asc_prt_scsi_cmnd(s); \ - } \ - } - #define ASC_DBG_PRT_ASC_SCSI_Q(lvl, scsiqp) \ { \ if (asc_dbglvl >= (lvl)) { \ @@ -2519,64 +2478,6 @@ static uchar overrun_buf[ASC_OVERRUN_BSIZE] = { 0 }; static int asc_dbglvl = 3; /* - * asc_prt_scsi_host() - */ -static void asc_prt_scsi_host(struct Scsi_Host *s) -{ - struct asc_board *boardp = shost_priv(s); - - printk("Scsi_Host at addr 0x%lx\n", (ulong)s); - printk(" host_busy %u, host_no %d, last_reset %d,\n", - s->host_busy, s->host_no, (unsigned)s->last_reset); - - printk(" base 0x%lx, io_port 0x%lx, irq 0x%x,\n", - (ulong)s->base, (ulong)s->io_port, boardp->irq); - - printk(" dma_channel %d, this_id %d, can_queue %d,\n", - s->dma_channel, s->this_id, s->can_queue); - - printk(" cmd_per_lun %d, sg_tablesize %d, unchecked_isa_dma %d\n", - s->cmd_per_lun, s->sg_tablesize, s->unchecked_isa_dma); - - if (ASC_NARROW_BOARD(boardp)) { - asc_prt_asc_dvc_var(boardp->dvc_var.asc_dvc_var); - asc_prt_asc_dvc_cfg(boardp->dvc_cfg.asc_dvc_cfg); - } else { - asc_prt_adv_dvc_var(boardp->dvc_var.adv_dvc_var); - asc_prt_adv_dvc_cfg(boardp->dvc_cfg.adv_dvc_cfg); - } -} - -/* - * asc_prt_scsi_cmnd() - */ -static void asc_prt_scsi_cmnd(struct scsi_cmnd *s) -{ - printk("struct scsi_cmnd at addr 0x%lx\n", (ulong)s); - - printk(" host 0x%lx, device 0x%lx, target %u, lun %u, channel %u,\n", - (ulong)s->device->host, (ulong)s->device, s->device->id, - s->device->lun, s->device->channel); - - asc_prt_hex(" CDB", s->cmnd, s->cmd_len); - - printk("sc_data_direction %u, resid %d\n", - s->sc_data_direction, s->resid); - - printk(" use_sg %u, sglist_len %u\n", s->use_sg, s->sglist_len); - - printk(" serial_number 0x%x, retries %d, allowed %d\n", - (unsigned)s->serial_number, s->retries, s->allowed); - - printk(" timeout_per_command %d\n", s->timeout_per_command); - - printk(" scsi_done 0x%p, done 0x%p, host_scribble 0x%p, result 0x%x\n", - s->scsi_done, s->done, s->host_scribble, s->result); - - printk(" tag %u, pid %u\n", (unsigned)s->tag, (unsigned)s->pid); -} - -/* * asc_prt_asc_dvc_var() */ static void asc_prt_asc_dvc_var(ASC_DVC_VAR *h) @@ -2627,65 +2528,11 @@ static void asc_prt_asc_dvc_cfg(ASC_DVC_CFG *h) "chip_version %d,\n", h->chip_scsi_id, h->isa_dma_speed, h->isa_dma_channel, h->chip_version); - printk(" pci_device_id %d, mcode_date 0x%x, mcode_version %d, " - "overrun_buf 0x%p\n", to_pci_dev(h->dev)->device, + printk(" mcode_date 0x%x, mcode_version %d, overrun_buf 0x%p\n", h->mcode_date, h->mcode_version, h->overrun_buf); } /* - * asc_prt_asc_scsi_q() - */ -static void asc_prt_asc_scsi_q(ASC_SCSI_Q *q) -{ - ASC_SG_HEAD *sgp; - int i; - - printk("ASC_SCSI_Q at addr 0x%lx\n", (ulong)q); - - printk - (" target_ix 0x%x, target_lun %u, srb_ptr 0x%lx, tag_code 0x%x,\n", - q->q2.target_ix, q->q1.target_lun, (ulong)q->q2.srb_ptr, - q->q2.tag_code); - - printk - (" data_addr 0x%lx, data_cnt %lu, sense_addr 0x%lx, sense_len %u,\n", - (ulong)le32_to_cpu(q->q1.data_addr), - (ulong)le32_to_cpu(q->q1.data_cnt), - (ulong)le32_to_cpu(q->q1.sense_addr), q->q1.sense_len); - - printk(" cdbptr 0x%lx, cdb_len %u, sg_head 0x%lx, sg_queue_cnt %u\n", - (ulong)q->cdbptr, q->q2.cdb_len, - (ulong)q->sg_head, q->q1.sg_queue_cnt); - - if (q->sg_head) { - sgp = q->sg_head; - printk("ASC_SG_HEAD at addr 0x%lx\n", (ulong)sgp); - printk(" entry_cnt %u, queue_cnt %u\n", sgp->entry_cnt, - sgp->queue_cnt); - for (i = 0; i < sgp->entry_cnt; i++) { - printk(" [%u]: addr 0x%lx, bytes %lu\n", - i, (ulong)le32_to_cpu(sgp->sg_list[i].addr), - (ulong)le32_to_cpu(sgp->sg_list[i].bytes)); - } - - } -} - -/* - * asc_prt_asc_qdone_info() - */ -static void asc_prt_asc_qdone_info(ASC_QDONE_INFO *q) -{ - printk("ASC_QDONE_INFO at addr 0x%lx\n", (ulong)q); - printk(" srb_ptr 0x%lx, target_ix %u, cdb_len %u, tag_code %u,\n", - (ulong)q->d2.srb_ptr, q->d2.target_ix, q->d2.cdb_len, - q->d2.tag_code); - printk - (" done_stat 0x%x, host_stat 0x%x, scsi_stat 0x%x, scsi_msg 0x%x\n", - q->d3.done_stat, q->d3.host_stat, q->d3.scsi_stat, q->d3.scsi_msg); -} - -/* * asc_prt_adv_dvc_var() * * Display an ADV_DVC_VAR structure. @@ -2697,9 +2544,8 @@ static void asc_prt_adv_dvc_var(ADV_DVC_VAR *h) printk(" iop_base 0x%lx, err_code 0x%x, ultra_able 0x%x\n", (ulong)h->iop_base, h->err_code, (unsigned)h->ultra_able); - printk(" isr_callback 0x%lx, sdtr_able 0x%x, wdtr_able 0x%x\n", - (ulong)h->isr_callback, (unsigned)h->sdtr_able, - (unsigned)h->wdtr_able); + printk(" sdtr_able 0x%x, wdtr_able 0x%x\n", + (unsigned)h->sdtr_able, (unsigned)h->wdtr_able); printk(" start_motor 0x%x, scsi_reset_wait 0x%x\n", (unsigned)h->start_motor, (unsigned)h->scsi_reset_wait); @@ -2733,87 +2579,36 @@ static void asc_prt_adv_dvc_cfg(ADV_DVC_CFG *h) printk(" chip_version 0x%x, mcode_date 0x%x\n", h->chip_version, h->mcode_date); - printk(" mcode_version 0x%x, pci_device_id 0x%x\n", - h->mcode_version, to_pci_dev(h->dev)->device); - - printk(" control_flag 0x%x\n", h->control_flag); + printk(" mcode_version 0x%x, control_flag 0x%x\n", + h->mcode_version, h->control_flag); } /* - * asc_prt_adv_scsi_req_q() - * - * Display an ADV_SCSI_REQ_Q structure. + * asc_prt_scsi_host() */ -static void asc_prt_adv_scsi_req_q(ADV_SCSI_REQ_Q *q) +static void asc_prt_scsi_host(struct Scsi_Host *s) { - int sg_blk_cnt; - struct asc_sg_block *sg_ptr; - - printk("ADV_SCSI_REQ_Q at addr 0x%lx\n", (ulong)q); - - printk(" target_id %u, target_lun %u, srb_ptr 0x%lx, a_flag 0x%x\n", - q->target_id, q->target_lun, (ulong)q->srb_ptr, q->a_flag); - - printk(" cntl 0x%x, data_addr 0x%lx, vdata_addr 0x%lx\n", - q->cntl, (ulong)le32_to_cpu(q->data_addr), (ulong)q->vdata_addr); - - printk(" data_cnt %lu, sense_addr 0x%lx, sense_len %u,\n", - (ulong)le32_to_cpu(q->data_cnt), - (ulong)le32_to_cpu(q->sense_addr), q->sense_len); - - printk - (" cdb_len %u, done_status 0x%x, host_status 0x%x, scsi_status 0x%x\n", - q->cdb_len, q->done_status, q->host_status, q->scsi_status); + struct asc_board *boardp = shost_priv(s); - printk(" sg_working_ix 0x%x, target_cmd %u\n", - q->sg_working_ix, q->target_cmd); + printk("Scsi_Host at addr 0x%p, device %s\n", s, boardp->dev->bus_id); + printk(" host_busy %u, host_no %d, last_reset %d,\n", + s->host_busy, s->host_no, (unsigned)s->last_reset); - printk(" scsiq_rptr 0x%lx, sg_real_addr 0x%lx, sg_list_ptr 0x%lx\n", - (ulong)le32_to_cpu(q->scsiq_rptr), - (ulong)le32_to_cpu(q->sg_real_addr), (ulong)q->sg_list_ptr); + printk(" base 0x%lx, io_port 0x%lx, irq %d,\n", + (ulong)s->base, (ulong)s->io_port, boardp->irq); - /* Display the request's ADV_SG_BLOCK structures. */ - if (q->sg_list_ptr != NULL) { - sg_blk_cnt = 0; - while (1) { - /* - * 'sg_ptr' is a physical address. Convert it to a virtual - * address by indexing 'sg_blk_cnt' into the virtual address - * array 'sg_list_ptr'. - * - * XXX - Assumes all SG physical blocks are virtually contiguous. - */ - sg_ptr = - &(((ADV_SG_BLOCK *)(q->sg_list_ptr))[sg_blk_cnt]); - asc_prt_adv_sgblock(sg_blk_cnt, sg_ptr); - if (sg_ptr->sg_ptr == 0) { - break; - } - sg_blk_cnt++; - } - } -} + printk(" dma_channel %d, this_id %d, can_queue %d,\n", + s->dma_channel, s->this_id, s->can_queue); -/* - * asc_prt_adv_sgblock() - * - * Display an ADV_SG_BLOCK structure. - */ -static void asc_prt_adv_sgblock(int sgblockno, ADV_SG_BLOCK *b) -{ - int i; + printk(" cmd_per_lun %d, sg_tablesize %d, unchecked_isa_dma %d\n", + s->cmd_per_lun, s->sg_tablesize, s->unchecked_isa_dma); - printk(" ASC_SG_BLOCK at addr 0x%lx (sgblockno %d)\n", - (ulong)b, sgblockno); - printk(" sg_cnt %u, sg_ptr 0x%lx\n", - b->sg_cnt, (ulong)le32_to_cpu(b->sg_ptr)); - BUG_ON(b->sg_cnt > NO_OF_SG_PER_BLOCK); - if (b->sg_ptr != 0) - BUG_ON(b->sg_cnt != NO_OF_SG_PER_BLOCK); - for (i = 0; i < b->sg_cnt; i++) { - printk(" [%u]: sg_addr 0x%lx, sg_count 0x%lx\n", - i, (ulong)b->sg_list[i].sg_addr, - (ulong)b->sg_list[i].sg_count); + if (ASC_NARROW_BOARD(boardp)) { + asc_prt_asc_dvc_var(&boardp->dvc_var.asc_dvc_var); + asc_prt_asc_dvc_cfg(&boardp->dvc_cfg.asc_dvc_cfg); + } else { + asc_prt_adv_dvc_var(&boardp->dvc_var.adv_dvc_var); + asc_prt_adv_dvc_cfg(&boardp->dvc_cfg.adv_dvc_cfg); } } @@ -2873,6 +2668,137 @@ static void asc_prt_hex(char *f, uchar *s, int l) printk("\n"); } } + +/* + * asc_prt_asc_scsi_q() + */ +static void asc_prt_asc_scsi_q(ASC_SCSI_Q *q) +{ + ASC_SG_HEAD *sgp; + int i; + + printk("ASC_SCSI_Q at addr 0x%lx\n", (ulong)q); + + printk + (" target_ix 0x%x, target_lun %u, srb_ptr 0x%lx, tag_code 0x%x,\n", + q->q2.target_ix, q->q1.target_lun, (ulong)q->q2.srb_ptr, + q->q2.tag_code); + + printk + (" data_addr 0x%lx, data_cnt %lu, sense_addr 0x%lx, sense_len %u,\n", + (ulong)le32_to_cpu(q->q1.data_addr), + (ulong)le32_to_cpu(q->q1.data_cnt), + (ulong)le32_to_cpu(q->q1.sense_addr), q->q1.sense_len); + + printk(" cdbptr 0x%lx, cdb_len %u, sg_head 0x%lx, sg_queue_cnt %u\n", + (ulong)q->cdbptr, q->q2.cdb_len, + (ulong)q->sg_head, q->q1.sg_queue_cnt); + + if (q->sg_head) { + sgp = q->sg_head; + printk("ASC_SG_HEAD at addr 0x%lx\n", (ulong)sgp); + printk(" entry_cnt %u, queue_cnt %u\n", sgp->entry_cnt, + sgp->queue_cnt); + for (i = 0; i < sgp->entry_cnt; i++) { + printk(" [%u]: addr 0x%lx, bytes %lu\n", + i, (ulong)le32_to_cpu(sgp->sg_list[i].addr), + (ulong)le32_to_cpu(sgp->sg_list[i].bytes)); + } + + } +} + +/* + * asc_prt_asc_qdone_info() + */ +static void asc_prt_asc_qdone_info(ASC_QDONE_INFO *q) +{ + printk("ASC_QDONE_INFO at addr 0x%lx\n", (ulong)q); + printk(" srb_ptr 0x%lx, target_ix %u, cdb_len %u, tag_code %u,\n", + (ulong)q->d2.srb_ptr, q->d2.target_ix, q->d2.cdb_len, + q->d2.tag_code); + printk + (" done_stat 0x%x, host_stat 0x%x, scsi_stat 0x%x, scsi_msg 0x%x\n", + q->d3.done_stat, q->d3.host_stat, q->d3.scsi_stat, q->d3.scsi_msg); +} + +/* + * asc_prt_adv_sgblock() + * + * Display an ADV_SG_BLOCK structure. + */ +static void asc_prt_adv_sgblock(int sgblockno, ADV_SG_BLOCK *b) +{ + int i; + + printk(" ASC_SG_BLOCK at addr 0x%lx (sgblockno %d)\n", + (ulong)b, sgblockno); + printk(" sg_cnt %u, sg_ptr 0x%lx\n", + b->sg_cnt, (ulong)le32_to_cpu(b->sg_ptr)); + BUG_ON(b->sg_cnt > NO_OF_SG_PER_BLOCK); + if (b->sg_ptr != 0) + BUG_ON(b->sg_cnt != NO_OF_SG_PER_BLOCK); + for (i = 0; i < b->sg_cnt; i++) { + printk(" [%u]: sg_addr 0x%lx, sg_count 0x%lx\n", + i, (ulong)b->sg_list[i].sg_addr, + (ulong)b->sg_list[i].sg_count); + } +} + +/* + * asc_prt_adv_scsi_req_q() + * + * Display an ADV_SCSI_REQ_Q structure. + */ +static void asc_prt_adv_scsi_req_q(ADV_SCSI_REQ_Q *q) +{ + int sg_blk_cnt; + struct asc_sg_block *sg_ptr; + + printk("ADV_SCSI_REQ_Q at addr 0x%lx\n", (ulong)q); + + printk(" target_id %u, target_lun %u, srb_ptr 0x%lx, a_flag 0x%x\n", + q->target_id, q->target_lun, (ulong)q->srb_ptr, q->a_flag); + + printk(" cntl 0x%x, data_addr 0x%lx, vdata_addr 0x%lx\n", + q->cntl, (ulong)le32_to_cpu(q->data_addr), (ulong)q->vdata_addr); + + printk(" data_cnt %lu, sense_addr 0x%lx, sense_len %u,\n", + (ulong)le32_to_cpu(q->data_cnt), + (ulong)le32_to_cpu(q->sense_addr), q->sense_len); + + printk + (" cdb_len %u, done_status 0x%x, host_status 0x%x, scsi_status 0x%x\n", + q->cdb_len, q->done_status, q->host_status, q->scsi_status); + + printk(" sg_working_ix 0x%x, target_cmd %u\n", + q->sg_working_ix, q->target_cmd); + + printk(" scsiq_rptr 0x%lx, sg_real_addr 0x%lx, sg_list_ptr 0x%lx\n", + (ulong)le32_to_cpu(q->scsiq_rptr), + (ulong)le32_to_cpu(q->sg_real_addr), (ulong)q->sg_list_ptr); + + /* Display the request's ADV_SG_BLOCK structures. */ + if (q->sg_list_ptr != NULL) { + sg_blk_cnt = 0; + while (1) { + /* + * 'sg_ptr' is a physical address. Convert it to a virtual + * address by indexing 'sg_blk_cnt' into the virtual address + * array 'sg_list_ptr'. + * + * XXX - Assumes all SG physical blocks are virtually contiguous. + */ + sg_ptr = + &(((ADV_SG_BLOCK *)(q->sg_list_ptr))[sg_blk_cnt]); + asc_prt_adv_sgblock(sg_blk_cnt, sg_ptr); + if (sg_ptr->sg_ptr == 0) { + break; + } + sg_blk_cnt++; + } + } +} #endif /* ADVANSYS_DEBUG */ /* @@ -2895,7 +2821,7 @@ static const char *advansys_info(struct Scsi_Host *shost) if (ASC_NARROW_BOARD(boardp)) { asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; - ASC_DBG(1, "advansys_info: begin\n"); + ASC_DBG(1, "begin\n"); if (asc_dvc_varp->bus_type & ASC_IS_ISA) { if ((asc_dvc_varp->bus_type & ASC_IS_ISAPNP) == ASC_IS_ISAPNP) { @@ -2955,7 +2881,7 @@ static const char *advansys_info(struct Scsi_Host *shost) (ulong)adv_dvc_varp->iop_base + boardp->asc_n_io_port - 1, boardp->irq); } BUG_ON(strlen(info) >= ASC_INFO_SIZE); - ASC_DBG(1, "advansys_info: end\n"); + ASC_DBG(1, "end\n"); return info; } @@ -4118,12 +4044,12 @@ asc_proc_copy(off_t advoffset, off_t offset, char *curbuf, int leftlen, { int cnt = 0; - ASC_DBG3(2, "asc_proc_copy: offset %d, advoffset %d, cplen %d\n", + ASC_DBG(2, "offset %d, advoffset %d, cplen %d\n", (unsigned)offset, (unsigned)advoffset, cplen); if (offset <= advoffset) { /* Read offset below current offset, copy everything. */ cnt = min(cplen, leftlen); - ASC_DBG3(2, "asc_proc_copy: curbuf 0x%lx, cp 0x%lx, cnt %d\n", + ASC_DBG(2, "curbuf 0x%lx, cp 0x%lx, cnt %d\n", (ulong)curbuf, (ulong)cp, cnt); memcpy(curbuf, cp, cnt); } else if (offset < advoffset + cplen) { @@ -4131,7 +4057,7 @@ asc_proc_copy(off_t advoffset, off_t offset, char *curbuf, int leftlen, cnt = (advoffset + cplen) - offset; cp = (cp + cplen) - cnt; cnt = min(cnt, leftlen); - ASC_DBG3(2, "asc_proc_copy: curbuf 0x%lx, cp 0x%lx, cnt %d\n", + ASC_DBG(2, "curbuf 0x%lx, cp 0x%lx, cnt %d\n", (ulong)curbuf, (ulong)cp, cnt); memcpy(curbuf, cp, cnt); } @@ -4270,7 +4196,7 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, char *curbuf; off_t advoffset; - ASC_DBG(1, "advansys_proc_info: begin\n"); + ASC_DBG(1, "begin\n"); /* * User write not supported. @@ -4302,7 +4228,7 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, totcnt += cnt; leftlen -= cnt; if (leftlen == 0) { - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); + ASC_DBG(1, "totcnt %d\n", totcnt); return totcnt; } advoffset += cplen; @@ -4320,7 +4246,7 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, totcnt += cnt; leftlen -= cnt; if (leftlen == 0) { - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); + ASC_DBG(1, "totcnt %d\n", totcnt); return totcnt; } advoffset += cplen; @@ -4337,7 +4263,7 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, totcnt += cnt; leftlen -= cnt; if (leftlen == 0) { - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); + ASC_DBG(1, "totcnt %d\n", totcnt); return totcnt; } advoffset += cplen; @@ -4357,7 +4283,7 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, totcnt += cnt; leftlen -= cnt; if (leftlen == 0) { - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); + ASC_DBG(1, "totcnt %d\n", totcnt); return totcnt; } advoffset += cplen; @@ -4373,7 +4299,7 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, totcnt += cnt; leftlen -= cnt; if (leftlen == 0) { - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); + ASC_DBG(1, "totcnt %d\n", totcnt); return totcnt; } advoffset += cplen; @@ -4390,7 +4316,7 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, totcnt += cnt; leftlen -= cnt; if (leftlen == 0) { - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); + ASC_DBG(1, "totcnt %d\n", totcnt); return totcnt; } advoffset += cplen; @@ -4412,13 +4338,13 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, totcnt += cnt; leftlen -= cnt; if (leftlen == 0) { - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); + ASC_DBG(1, "totcnt %d\n", totcnt); return totcnt; } advoffset += cplen; curbuf += cnt; - ASC_DBG1(1, "advansys_proc_info: totcnt %d\n", totcnt); + ASC_DBG(1, "totcnt %d\n", totcnt); return totcnt; } @@ -4530,11 +4456,10 @@ static int AscFindSignature(PortAddr iop_base) { ushort sig_word; - ASC_DBG2(1, "AscFindSignature: AscGetChipSignatureByte(0x%x) 0x%x\n", + ASC_DBG(1, "AscGetChipSignatureByte(0x%x) 0x%x\n", iop_base, AscGetChipSignatureByte(iop_base)); if (AscGetChipSignatureByte(iop_base) == (uchar)ASC_1000_ID1B) { - ASC_DBG2(1, - "AscFindSignature: AscGetChipSignatureWord(0x%x) 0x%x\n", + ASC_DBG(1, "AscGetChipSignatureWord(0x%x) 0x%x\n", iop_base, AscGetChipSignatureWord(iop_base)); sig_word = AscGetChipSignatureWord(iop_base); if ((sig_word == (ushort)ASC_1000_ID0W) || @@ -4785,18 +4710,17 @@ AscLoadMicroCode(PortAddr iop_base, AscMemWordCopyPtrToLram(iop_base, s_addr, mcode_buf, mcode_word_size); chksum = AscMemSumLramWord(iop_base, s_addr, mcode_word_size); - ASC_DBG1(1, "AscLoadMicroCode: chksum 0x%lx\n", (ulong)chksum); + ASC_DBG(1, "chksum 0x%lx\n", (ulong)chksum); mcode_chksum = (ushort)AscMemSumLramWord(iop_base, (ushort)ASC_CODE_SEC_BEG, (ushort)((mcode_size - s_addr - (ushort) ASC_CODE_SEC_BEG) / 2)); - ASC_DBG1(1, "AscLoadMicroCode: mcode_chksum 0x%lx\n", - (ulong)mcode_chksum); + ASC_DBG(1, "mcode_chksum 0x%lx\n", (ulong)mcode_chksum); AscWriteLramWord(iop_base, ASCV_MCODE_CHKSUM_W, mcode_chksum); AscWriteLramWord(iop_base, ASCV_MCODE_SIZE_W, mcode_size); - return (chksum); + return chksum; } /* Microcode buffer is kept after initialization for error recovery. */ @@ -6511,8 +6435,7 @@ static ushort AscInitAsc1000Driver(ASC_DVC_VAR *asc_dvc) warn_code |= AscInitLram(asc_dvc); if (asc_dvc->err_code != 0) return UW_ERR; - ASC_DBG1(1, "AscInitAsc1000Driver: _asc_mcode_chksum 0x%lx\n", - (ulong)_asc_mcode_chksum); + ASC_DBG(1, "_asc_mcode_chksum 0x%lx\n", (ulong)_asc_mcode_chksum); if (AscLoadMicroCode(iop_base, 0, _asc_mcode_buf, _asc_mcode_size) != _asc_mcode_chksum) { asc_dvc->err_code |= ASC_IERR_MCODE_CHKSUM; @@ -6613,7 +6536,7 @@ DvcGetPhyAddr(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq, { ADV_PADDR paddr = virt_to_bus(vaddr); - ASC_DBG4(4, "DvcGetPhyAddr: vaddr 0x%p, lenp 0x%p *lenp %lu, paddr 0x%lx\n", + ASC_DBG(4, "vaddr 0x%p, lenp 0x%p *lenp %lu, paddr 0x%lx\n", vaddr, lenp, (ulong)*((ulong *)lenp), (ulong)paddr); return paddr; @@ -8291,8 +8214,7 @@ static void adv_async_callback(ADV_DVC_VAR *adv_dvc_varp, uchar code) /* * The firmware detected a SCSI Bus reset. */ - ASC_DBG(0, - "adv_async_callback: ADV_ASYNC_SCSI_BUS_RESET_DET\n"); + ASC_DBG(0, "ADV_ASYNC_SCSI_BUS_RESET_DET\n"); break; case ADV_ASYNC_RDMA_FAILURE: @@ -8301,7 +8223,7 @@ static void adv_async_callback(ADV_DVC_VAR *adv_dvc_varp, uchar code) * possibly the chip if it is unresponsive. Log the error * with a unique code. */ - ASC_DBG(0, "adv_async_callback: ADV_ASYNC_RDMA_FAILURE\n"); + ASC_DBG(0, "ADV_ASYNC_RDMA_FAILURE\n"); AdvResetChipAndSB(adv_dvc_varp); break; @@ -8309,11 +8231,11 @@ static void adv_async_callback(ADV_DVC_VAR *adv_dvc_varp, uchar code) /* * Host generated SCSI bus reset occurred. */ - ASC_DBG(0, "adv_async_callback: ADV_HOST_SCSI_BUS_RESET\n"); + ASC_DBG(0, "ADV_HOST_SCSI_BUS_RESET\n"); break; default: - ASC_DBG1(0, "DvcAsyncCallBack: unknown code 0x%x\n", code); + ASC_DBG(0, "unknown code 0x%x\n", code); break; } } @@ -8332,7 +8254,7 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) struct Scsi_Host *shost; ADV_DCNT resid_cnt; - ASC_DBG2(1, "adv_isr_callback: adv_dvc_varp 0x%lx, scsiqp 0x%lx\n", + ASC_DBG(1, "adv_dvc_varp 0x%lx, scsiqp 0x%lx\n", (ulong)adv_dvc_varp, (ulong)scsiqp); ASC_DBG_PRT_ADV_SCSI_REQ_Q(2, scsiqp); @@ -8342,7 +8264,7 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) * completed ADV_SCSI_REQ_Q structure. */ reqp = (adv_req_t *)ADV_U32_TO_VADDR(scsiqp->srb_ptr); - ASC_DBG1(1, "adv_isr_callback: reqp 0x%lx\n", (ulong)reqp); + ASC_DBG(1, "reqp 0x%lx\n", (ulong)reqp); if (reqp == NULL) { ASC_PRINT("adv_isr_callback: reqp is NULL\n"); return; @@ -8357,7 +8279,7 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) * determined. */ scp = reqp->cmndp; - ASC_DBG1(1, "adv_isr_callback: scp 0x%lx\n", (ulong)scp); + ASC_DBG(1, "scp 0x%p\n", scp); if (scp == NULL) { ASC_PRINT ("adv_isr_callback: scp is NULL; adv_req_t dropped.\n"); @@ -8367,7 +8289,7 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) shost = scp->device->host; ASC_STATS(shost, callback); - ASC_DBG1(1, "adv_isr_callback: shost 0x%lx\n", (ulong)shost); + ASC_DBG(1, "shost 0x%p\n", shost); boardp = shost_priv(shost); BUG_ON(adv_dvc_varp != &boardp->dvc_var.adv_dvc_var); @@ -8377,7 +8299,7 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) */ switch (scsiqp->done_status) { case QD_NO_ERROR: - ASC_DBG(2, "adv_isr_callback: QD_NO_ERROR\n"); + ASC_DBG(2, "QD_NO_ERROR\n"); scp->result = 0; /* @@ -8389,20 +8311,18 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) resid_cnt = le32_to_cpu(scsiqp->data_cnt); if (scp->request_bufflen != 0 && resid_cnt != 0 && resid_cnt <= scp->request_bufflen) { - ASC_DBG1(1, - "adv_isr_callback: underrun condition %lu bytes\n", + ASC_DBG(1, "underrun condition %lu bytes\n", (ulong)resid_cnt); scp->resid = resid_cnt; } break; case QD_WITH_ERROR: - ASC_DBG(2, "adv_isr_callback: QD_WITH_ERROR\n"); + ASC_DBG(2, "QD_WITH_ERROR\n"); switch (scsiqp->host_status) { case QHSTA_NO_ERROR: if (scsiqp->scsi_status == SAM_STAT_CHECK_CONDITION) { - ASC_DBG(2, - "adv_isr_callback: SAM_STAT_CHECK_CONDITION\n"); + ASC_DBG(2, "SAM_STAT_CHECK_CONDITION\n"); ASC_DBG_PRT_SENSE(2, scp->sense_buffer, sizeof(scp->sense_buffer)); /* @@ -8426,22 +8346,20 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) default: /* Some other QHSTA error occurred. */ - ASC_DBG1(1, "adv_isr_callback: host_status 0x%x\n", - scsiqp->host_status); + ASC_DBG(1, "host_status 0x%x\n", scsiqp->host_status); scp->result = HOST_BYTE(DID_BAD_TARGET); break; } break; case QD_ABORTED_BY_HOST: - ASC_DBG(1, "adv_isr_callback: QD_ABORTED_BY_HOST\n"); + ASC_DBG(1, "QD_ABORTED_BY_HOST\n"); scp->result = HOST_BYTE(DID_ABORT) | STATUS_BYTE(scsiqp->scsi_status); break; default: - ASC_DBG1(1, "adv_isr_callback: done_status 0x%x\n", - scsiqp->done_status); + ASC_DBG(1, "done_status 0x%x\n", scsiqp->done_status); scp->result = HOST_BYTE(DID_ERROR) | STATUS_BYTE(scsiqp->scsi_status); break; @@ -8479,7 +8397,7 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) reqp->next_reqp = boardp->adv_reqp; boardp->adv_reqp = reqp; - ASC_DBG(1, "adv_isr_callback: done\n"); + ASC_DBG(1, "done\n"); return; } @@ -9299,8 +9217,7 @@ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) struct scsi_cmnd *scp; struct Scsi_Host *shost; - ASC_DBG2(1, "asc_isr_callback: asc_dvc_varp 0x%lx, qdonep 0x%lx\n", - (ulong)asc_dvc_varp, (ulong)qdonep); + ASC_DBG(1, "asc_dvc_varp 0x%p, qdonep 0x%p\n", asc_dvc_varp, qdonep); ASC_DBG_PRT_ASC_QDONE_INFO(2, qdonep); /* @@ -9308,7 +9225,7 @@ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) * command that has been completed. */ scp = (struct scsi_cmnd *)ASC_U32_TO_VADDR(qdonep->d2.srb_ptr); - ASC_DBG1(1, "asc_isr_callback: scp 0x%lx\n", (ulong)scp); + ASC_DBG(1, "scp 0x%p\n", scp); if (scp == NULL) { ASC_PRINT("asc_isr_callback: scp is NULL\n"); @@ -9318,7 +9235,7 @@ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) shost = scp->device->host; ASC_STATS(shost, callback); - ASC_DBG1(1, "asc_isr_callback: shost 0x%lx\n", (ulong)shost); + ASC_DBG(1, "shost 0x%p\n", shost); boardp = shost_priv(shost); BUG_ON(asc_dvc_varp != &boardp->dvc_var.asc_dvc_var); @@ -9328,7 +9245,7 @@ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) */ switch (qdonep->d3.done_stat) { case QD_NO_ERROR: - ASC_DBG(2, "asc_isr_callback: QD_NO_ERROR\n"); + ASC_DBG(2, "QD_NO_ERROR\n"); scp->result = 0; /* @@ -9339,20 +9256,18 @@ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) */ if (scp->request_bufflen != 0 && qdonep->remain_bytes != 0 && qdonep->remain_bytes <= scp->request_bufflen) { - ASC_DBG1(1, - "asc_isr_callback: underrun condition %u bytes\n", + ASC_DBG(1, "underrun condition %u bytes\n", (unsigned)qdonep->remain_bytes); scp->resid = qdonep->remain_bytes; } break; case QD_WITH_ERROR: - ASC_DBG(2, "asc_isr_callback: QD_WITH_ERROR\n"); + ASC_DBG(2, "QD_WITH_ERROR\n"); switch (qdonep->d3.host_stat) { case QHSTA_NO_ERROR: if (qdonep->d3.scsi_stat == SAM_STAT_CHECK_CONDITION) { - ASC_DBG(2, - "asc_isr_callback: SAM_STAT_CHECK_CONDITION\n"); + ASC_DBG(2, "SAM_STAT_CHECK_CONDITION\n"); ASC_DBG_PRT_SENSE(2, scp->sense_buffer, sizeof(scp->sense_buffer)); /* @@ -9376,15 +9291,14 @@ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) default: /* QHSTA error occurred */ - ASC_DBG1(1, "asc_isr_callback: host_stat 0x%x\n", - qdonep->d3.host_stat); + ASC_DBG(1, "host_stat 0x%x\n", qdonep->d3.host_stat); scp->result = HOST_BYTE(DID_BAD_TARGET); break; } break; case QD_ABORTED_BY_HOST: - ASC_DBG(1, "asc_isr_callback: QD_ABORTED_BY_HOST\n"); + ASC_DBG(1, "QD_ABORTED_BY_HOST\n"); scp->result = HOST_BYTE(DID_ABORT) | MSG_BYTE(qdonep->d3. scsi_msg) | @@ -9392,8 +9306,7 @@ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) break; default: - ASC_DBG1(1, "asc_isr_callback: done_stat 0x%x\n", - qdonep->d3.done_stat); + ASC_DBG(1, "done_stat 0x%x\n", qdonep->d3.done_stat); scp->result = HOST_BYTE(DID_ERROR) | MSG_BYTE(qdonep->d3. scsi_msg) | @@ -9681,7 +9594,7 @@ static int advansys_reset(struct scsi_cmnd *scp) int status; int ret = SUCCESS; - ASC_DBG1(1, "advansys_reset: 0x%p\n", scp); + ASC_DBG(1, "0x%p\n", scp); ASC_STATS(shost, reset); @@ -9691,7 +9604,7 @@ static int advansys_reset(struct scsi_cmnd *scp) ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; /* Reset the chip and SCSI bus. */ - ASC_DBG(1, "advansys_reset: before AscInitAsc1000Driver()\n"); + ASC_DBG(1, "before AscInitAsc1000Driver()\n"); status = AscInitAsc1000Driver(asc_dvc); /* Refer to ASC_IERR_* defintions for meaning of 'err_code'. */ @@ -9707,7 +9620,7 @@ static int advansys_reset(struct scsi_cmnd *scp) "successful\n"); } - ASC_DBG(1, "advansys_reset: after AscInitAsc1000Driver()\n"); + ASC_DBG(1, "after AscInitAsc1000Driver()\n"); spin_lock_irqsave(&boardp->lock, flags); } else { /* @@ -9719,7 +9632,7 @@ static int advansys_reset(struct scsi_cmnd *scp) /* * Reset the target's SCSI bus. */ - ASC_DBG(1, "advansys_reset: before AdvResetChipAndSB()\n"); + ASC_DBG(1, "before AdvResetChipAndSB()\n"); switch (AdvResetChipAndSB(adv_dvc)) { case ASC_TRUE: scmd_printk(KERN_INFO, scp, "SCSI bus reset " @@ -9739,7 +9652,7 @@ static int advansys_reset(struct scsi_cmnd *scp) boardp->last_reset = jiffies; spin_unlock_irqrestore(&boardp->lock, flags); - ASC_DBG1(1, "advansys_reset: ret %d\n", ret); + ASC_DBG(1, "ret %d\n", ret); return ret; } @@ -9761,7 +9674,7 @@ advansys_biosparam(struct scsi_device *sdev, struct block_device *bdev, { struct asc_board *boardp = shost_priv(sdev->host); - ASC_DBG(1, "advansys_biosparam: begin\n"); + ASC_DBG(1, "begin\n"); ASC_STATS(sdev->host, biosparam); if (ASC_NARROW_BOARD(boardp)) { if ((boardp->dvc_var.asc_dvc_var.dvc_cntl & @@ -9783,7 +9696,7 @@ advansys_biosparam(struct scsi_device *sdev, struct block_device *bdev, } } ip[2] = (unsigned long)capacity / (ip[0] * ip[1]); - ASC_DBG(1, "advansys_biosparam: end\n"); + ASC_DBG(1, "end\n"); return 0; } @@ -9799,17 +9712,17 @@ static irqreturn_t advansys_interrupt(int irq, void *dev_id) struct asc_board *boardp = shost_priv(shost); irqreturn_t result = IRQ_NONE; - ASC_DBG1(2, "advansys_interrupt: boardp 0x%p\n", boardp); + ASC_DBG(2, "boardp 0x%p\n", boardp); spin_lock_irqsave(&boardp->lock, flags); if (ASC_NARROW_BOARD(boardp)) { if (AscIsIntPending(shost->io_port)) { result = IRQ_HANDLED; ASC_STATS(shost, interrupt); - ASC_DBG(1, "advansys_interrupt: before AscISR()\n"); + ASC_DBG(1, "before AscISR()\n"); AscISR(&boardp->dvc_var.asc_dvc_var); } } else { - ASC_DBG(1, "advansys_interrupt: before AdvISR()\n"); + ASC_DBG(1, "before AdvISR()\n"); if (AdvISR(&boardp->dvc_var.adv_dvc_var)) { result = IRQ_HANDLED; ASC_STATS(shost, interrupt); @@ -9817,7 +9730,7 @@ static irqreturn_t advansys_interrupt(int irq, void *dev_id) } spin_unlock_irqrestore(&boardp->lock, flags); - ASC_DBG(1, "advansys_interrupt: end\n"); + ASC_DBG(1, "end\n"); return result; } @@ -10186,7 +10099,7 @@ static int asc_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, } } - ASC_DBG_PRT_ASC_SCSI_Q(2, &asc_scsi_q); + ASC_DBG_PRT_ASC_SCSI_Q(2, asc_scsi_q); ASC_DBG_PRT_CDB(1, scp->cmnd, scp->cmd_len); return ASC_NOERROR; @@ -10229,7 +10142,7 @@ adv_get_sglist(struct asc_board *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, * (15) scatter-gather elements. */ if ((sgblkp = boardp->adv_sgblkp) == NULL) { - ASC_DBG(1, "adv_get_sglist: no free adv_sgblk_t\n"); + ASC_DBG(1, "no free adv_sgblk_t\n"); ASC_STATS(scp->device->host, adv_build_nosg); /* @@ -10328,7 +10241,7 @@ adv_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, * the command. */ if (boardp->adv_reqp == NULL) { - ASC_DBG(1, "adv_build_req: no free adv_req_t\n"); + ASC_DBG(1, "no free adv_req_t\n"); ASC_STATS(scp->device->host, adv_build_noreq); return ASC_BUSY; } else { @@ -11205,7 +11118,7 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) int ret, err_code; struct asc_board *boardp = shost_priv(scp->device->host); - ASC_DBG1(1, "asc_execute_scsi_cmnd: scp 0x%p\n", scp); + ASC_DBG(1, "scp 0x%p\n", scp); if (ASC_NARROW_BOARD(boardp)) { ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; @@ -11227,12 +11140,10 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) switch (adv_build_req(boardp, scp, &adv_scsiqp)) { case ASC_NOERROR: - ASC_DBG(3, "asc_execute_scsi_cmnd: adv_build_req " - "ASC_NOERROR\n"); + ASC_DBG(3, "adv_build_req ASC_NOERROR\n"); break; case ASC_BUSY: - ASC_DBG(1, "asc_execute_scsi_cmnd: adv_build_req " - "ASC_BUSY\n"); + ASC_DBG(1, "adv_build_req ASC_BUSY\n"); /* * The asc_stats fields 'adv_build_noreq' and * 'adv_build_nosg' count wide board busy conditions. @@ -11242,8 +11153,7 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) return ASC_BUSY; case ASC_ERROR: default: - ASC_DBG(1, "asc_execute_scsi_cmnd: adv_build_req " - "ASC_ERROR\n"); + ASC_DBG(1, "adv_build_req ASC_ERROR\n"); ASC_STATS(scp->device->host, build_error); return ASC_ERROR; } @@ -11260,8 +11170,7 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) * successful request counter. Wrapping doesn't matter. */ boardp->reqcnt[scp->device->id]++; - ASC_DBG(1, "asc_execute_scsi_cmnd: ExeScsiQueue(), " - "ASC_NOERROR\n"); + ASC_DBG(1, "ExeScsiQueue() ASC_NOERROR\n"); break; case ASC_BUSY: ASC_STATS(scp->device->host, exe_busy); @@ -11280,7 +11189,7 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) break; } - ASC_DBG(1, "asc_execute_scsi_cmnd: end\n"); + ASC_DBG(1, "end\n"); return ret; } @@ -11911,7 +11820,7 @@ static ushort __devinit AscInitFromEEP(ASC_DVC_VAR *asc_dvc) AscSetChipCfgMsw(iop_base, cfg_msw); } chksum = AscGetEEPConfig(iop_base, eep_config, asc_dvc->bus_type); - ASC_DBG1(1, "AscInitFromEEP: chksum 0x%x\n", chksum); + ASC_DBG(1, "chksum 0x%x\n", chksum); if (chksum == 0) { chksum = 0xaa55; } @@ -11932,13 +11841,11 @@ static ushort __devinit AscInitFromEEP(ASC_DVC_VAR *asc_dvc) } eep_config->cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; eep_config->cfg_lsw |= ASC_CFG0_HOST_INT_ON; - ASC_DBG1(1, "AscInitFromEEP: eep_config->chksum 0x%x\n", - eep_config->chksum); + ASC_DBG(1, "eep_config->chksum 0x%x\n", eep_config->chksum); if (chksum != eep_config->chksum) { if (AscGetChipVersion(iop_base, asc_dvc->bus_type) == ASC_CHIP_VER_PCI_ULTRA_3050) { - ASC_DBG(1, - "AscInitFromEEP: chksum error ignored; EEPROM-less board\n"); + ASC_DBG(1, "chksum error ignored; EEPROM-less board\n"); eep_config->init_sdtr = 0xFF; eep_config->disc_enable = 0xFF; eep_config->start_motor = 0xFF; @@ -13517,11 +13424,11 @@ AdvInitGetConfig(struct pci_dev *pdev, struct asc_board *boardp) asc_dvc->cfg->chip_version = AdvGetChipVersion(iop_base, asc_dvc->bus_type); - ASC_DBG2(1, "AdvInitGetConfig: iopb_chip_id_1: 0x%x 0x%x\n", + ASC_DBG(1, "iopb_chip_id_1: 0x%x 0x%x\n", (ushort)AdvReadByteRegister(iop_base, IOPB_CHIP_ID_1), (ushort)ADV_CHIP_ID_BYTE); - ASC_DBG2(1, "AdvInitGetConfig: iopw_chip_id_0: 0x%x 0x%x\n", + ASC_DBG(1, "iopw_chip_id_0: 0x%x 0x%x\n", (ushort)AdvReadWordRegister(iop_base, IOPW_CHIP_ID_0), (ushort)ADV_CHIP_ID_WORD); @@ -13616,7 +13523,7 @@ advansys_wide_init_chip(struct asc_board *boardp, ADV_DVC_VAR *adv_dvc_varp) * is about 4 KB, so allocate all at once. */ boardp->carrp = kmalloc(ADV_CARRIER_BUFSIZE, GFP_KERNEL); - ASC_DBG1(1, "advansys_wide_init_chip: carrp 0x%p\n", boardp->carrp); + ASC_DBG(1, "carrp 0x%p\n", boardp->carrp); if (!boardp->carrp) goto kmalloc_failed; @@ -13629,8 +13536,7 @@ advansys_wide_init_chip(struct asc_board *boardp, ADV_DVC_VAR *adv_dvc_varp) for (req_cnt = adv_dvc_varp->max_host_qng; req_cnt > 0; req_cnt--) { reqp = kmalloc(sizeof(adv_req_t) * req_cnt, GFP_KERNEL); - ASC_DBG3(1, "advansys_wide_init_chip: reqp 0x%p, req_cnt %d, " - "bytes %lu\n", reqp, req_cnt, + ASC_DBG(1, "reqp 0x%p, req_cnt %d, bytes %lu\n", reqp, req_cnt, (ulong)sizeof(adv_req_t) * req_cnt); if (reqp) @@ -13658,8 +13564,7 @@ advansys_wide_init_chip(struct asc_board *boardp, ADV_DVC_VAR *adv_dvc_varp) } - ASC_DBG3(1, "advansys_wide_init_chip: sg_cnt %d * %u = %u bytes\n", - sg_cnt, sizeof(adv_sgblk_t), + ASC_DBG(1, "sg_cnt %d * %u = %u bytes\n", sg_cnt, sizeof(adv_sgblk_t), (unsigned)(sizeof(adv_sgblk_t) * sg_cnt)); if (!boardp->adv_sgblkp) @@ -13679,15 +13584,13 @@ advansys_wide_init_chip(struct asc_board *boardp, ADV_DVC_VAR *adv_dvc_varp) boardp->adv_reqp = &reqp[0]; if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { - ASC_DBG(2, "advansys_wide_init_chip: AdvInitAsc3550Driver()\n"); + ASC_DBG(2, "AdvInitAsc3550Driver()\n"); warn_code = AdvInitAsc3550Driver(adv_dvc_varp); } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) { - ASC_DBG(2, "advansys_wide_init_chip: AdvInitAsc38C0800Driver()" - "\n"); + ASC_DBG(2, "AdvInitAsc38C0800Driver()\n"); warn_code = AdvInitAsc38C0800Driver(adv_dvc_varp); } else { - ASC_DBG(2, "advansys_wide_init_chip: AdvInitAsc38C1600Driver()" - "\n"); + ASC_DBG(2, "AdvInitAsc38C1600Driver()\n"); warn_code = AdvInitAsc38C1600Driver(adv_dvc_varp); } err_code = adv_dvc_varp->err_code; @@ -13734,7 +13637,7 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, pdev = (bus_type == ASC_IS_PCI) ? to_pci_dev(boardp->dev) : NULL; if (ASC_NARROW_BOARD(boardp)) { - ASC_DBG(1, "advansys_board_found: narrow board\n"); + ASC_DBG(1, "narrow board\n"); asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; asc_dvc_varp->bus_type = bus_type; asc_dvc_varp->drv_ptr = boardp; @@ -13743,18 +13646,17 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, asc_dvc_varp->iop_base = iop; } else { #ifdef CONFIG_PCI - ASC_DBG(1, "advansys_board_found: wide board\n"); adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; adv_dvc_varp->drv_ptr = boardp; adv_dvc_varp->cfg = &boardp->dvc_cfg.adv_dvc_cfg; if (pdev->device == PCI_DEVICE_ID_ASP_ABP940UW) { - ASC_DBG(1, "advansys_board_found: ASC-3550\n"); + ASC_DBG(1, "wide board ASC-3550\n"); adv_dvc_varp->chip_type = ADV_CHIP_ASC3550; } else if (pdev->device == PCI_DEVICE_ID_38C0800_REV1) { - ASC_DBG(1, "advansys_board_found: ASC-38C0800\n"); + ASC_DBG(1, "wide board ASC-38C0800\n"); adv_dvc_varp->chip_type = ADV_CHIP_ASC38C0800; } else { - ASC_DBG(1, "advansys_board_found: ASC-38C1600\n"); + ASC_DBG(1, "wide board ASC-38C1600\n"); adv_dvc_varp->chip_type = ADV_CHIP_ASC38C1600; } @@ -13769,9 +13671,8 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, ret = -ENODEV; goto err_shost; } - adv_dvc_varp->iop_base = (AdvPortAddr)boardp->ioremap_addr - ASC_DBG1(1, "advansys_board_found: iop_base: 0x%lx\n", - adv_dvc_varp->iop_base); + adv_dvc_varp->iop_base = (AdvPortAddr)boardp->ioremap_addr; + ASC_DBG(1, "iop_base: 0x%p\n", adv_dvc_varp->iop_base); /* * Even though it isn't used to access wide boards, other @@ -13780,9 +13681,8 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, */ boardp->ioport = iop; - ASC_DBG2(1, "advansys_board_found: iopb_chip_id_1 0x%x, " - "iopw_chip_id_0 0x%x\n", (ushort)inp(iop + 1), - (ushort)inpw(iop)); + ASC_DBG(1, "iopb_chip_id_1 0x%x, iopw_chip_id_0 0x%x\n", + (ushort)inp(iop + 1), (ushort)inpw(iop)); #endif /* CONFIG_PCI */ } @@ -13841,7 +13741,7 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, * longer be used. If the bus_type field must be * referenced only use the bit-wise AND operator "&". */ - ASC_DBG(2, "advansys_board_found: AscInitGetConfig()\n"); + ASC_DBG(2, "AscInitGetConfig()\n"); ret = AscInitGetConfig(boardp) ? -ENODEV : 0; } else { #ifdef CONFIG_PCI @@ -13851,7 +13751,7 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, */ shost->unchecked_isa_dma = FALSE; share_irq = IRQF_SHARED; - ASC_DBG(2, "advansys_board_found: AdvInitGetConfig()\n"); + ASC_DBG(2, "AdvInitGetConfig()\n"); ret = AdvInitGetConfig(pdev, boardp) ? -ENODEV : 0; #endif /* CONFIG_PCI */ @@ -13900,7 +13800,7 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, /* * Modify board configuration. */ - ASC_DBG(2, "advansys_board_found: AscInitSetConfig()\n"); + ASC_DBG(2, "AscInitSetConfig()\n"); ret = AscInitSetConfig(pdev, boardp) ? -ENODEV : 0; if (ret) goto err_free_proc; @@ -14081,7 +13981,7 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, shost->sg_tablesize = SG_ALL; } - ASC_DBG1(1, "advansys_board_found: sg_tablesize: %d\n", shost->sg_tablesize); + ASC_DBG(1, "sg_tablesize: %d\n", shost->sg_tablesize); /* BIOS start address. */ if (ASC_NARROW_BOARD(boardp)) { @@ -14101,12 +14001,10 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, AdvReadWordLram(adv_dvc_varp->iop_base, BIOS_CODELEN, boardp->bios_codelen); - ASC_DBG2(1, - "advansys_board_found: bios_signature 0x%x, bios_version 0x%x\n", + ASC_DBG(1, "bios_signature 0x%x, bios_version 0x%x\n", boardp->bios_signature, boardp->bios_version); - ASC_DBG2(1, - "advansys_board_found: bios_codeseg 0x%x, bios_codelen 0x%x\n", + ASC_DBG(1, "bios_codeseg 0x%x, bios_codelen 0x%x\n", boardp->bios_codeseg, boardp->bios_codelen); /* @@ -14148,7 +14046,7 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, #endif /* CONFIG_ISA */ /* Register IRQ Number. */ - ASC_DBG1(2, "advansys_board_found: request_irq() %d\n", boardp->irq); + ASC_DBG(2, "request_irq(%d, %p)\n", boardp->irq, shost); ret = request_irq(boardp->irq, advansys_interrupt, share_irq, DRV_NAME, shost); @@ -14174,7 +14072,7 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, * Initialize board RISC chip and enable interrupts. */ if (ASC_NARROW_BOARD(boardp)) { - ASC_DBG(2, "advansys_board_found: AscInitAsc1000Driver()\n"); + ASC_DBG(2, "AscInitAsc1000Driver()\n"); warn_code = AscInitAsc1000Driver(asc_dvc_varp); if (warn_code || asc_dvc_varp->err_code) { @@ -14225,11 +14123,11 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, static int advansys_release(struct Scsi_Host *shost) { struct asc_board *boardp = shost_priv(shost); - ASC_DBG(1, "advansys_release: begin\n"); + ASC_DBG(1, "begin\n"); scsi_remove_host(shost); free_irq(boardp->irq, shost); if (shost->dma_channel != NO_ISA_DMA) { - ASC_DBG(1, "advansys_release: free_dma()\n"); + ASC_DBG(1, "free_dma()\n"); free_dma(shost->dma_channel); } if (!ASC_NARROW_BOARD(boardp)) { @@ -14238,7 +14136,7 @@ static int advansys_release(struct Scsi_Host *shost) } kfree(boardp->prtbuf); scsi_host_put(shost); - ASC_DBG(1, "advansys_release: end\n"); + ASC_DBG(1, "end\n"); return 0; } @@ -14273,11 +14171,10 @@ static int __devinit advansys_isa_probe(struct device *dev, unsigned int id) struct asc_board *board; if (!request_region(iop_base, ASC_IOADR_GAP, DRV_NAME)) { - ASC_DBG1(1, "advansys_isa_match: I/O port 0x%x busy\n", - iop_base); + ASC_DBG(1, "I/O port 0x%x busy\n", iop_base); return -ENODEV; } - ASC_DBG1(1, "advansys_isa_match: probing I/O port 0x%x\n", iop_base); + ASC_DBG(1, "probing I/O port 0x%x\n", iop_base); if (!AscFindSignature(iop_base)) goto release_region; if (!(AscGetChipVersion(iop_base, ASC_IS_ISA) & ASC_CHIP_VER_ISA_BIT)) @@ -14351,11 +14248,10 @@ static int __devinit advansys_vlb_probe(struct device *dev, unsigned int id) struct asc_board *board; if (!request_region(iop_base, ASC_IOADR_GAP, DRV_NAME)) { - ASC_DBG1(1, "advansys_vlb_match: I/O port 0x%x busy\n", - iop_base); + ASC_DBG(1, "I/O port 0x%x busy\n", iop_base); return -ENODEV; } - ASC_DBG1(1, "advansys_vlb_match: probing I/O port 0x%x\n", iop_base); + ASC_DBG(1, "probing I/O port 0x%x\n", iop_base); if (!AscFindSignature(iop_base)) goto release_region; /* -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 13/17] advansys: Remove private lock 2007-09-15 14:39 ` James Bottomley ` (12 preceding siblings ...) 2007-09-16 15:37 ` [PATCH 12/17] advansys: Sort out debug macros Matthew Wilcox @ 2007-09-16 15:37 ` Matthew Wilcox 2007-09-16 15:37 ` [PATCH 14/17] advansys: Get rid of board index number Matthew Wilcox ` (4 subsequent siblings) 18 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-16 15:37 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox The board lock was essentially identical with the host lock. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 21 +++++---------------- 1 files changed, 5 insertions(+), 16 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 95df291..b652032 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -2439,7 +2439,6 @@ struct asc_board { ADVEEP_38C1600_CONFIG adv_38C1600_eep; /* 38C1600 EEPROM config. */ } eep_config; ulong last_reset; /* Saved last reset time */ - spinlock_t lock; /* Board spinlock */ /* /proc/scsi/advansys/[0...] */ char *prtbuf; /* /proc print buffer */ #ifdef ADVANSYS_STATS @@ -9621,7 +9620,7 @@ static int advansys_reset(struct scsi_cmnd *scp) } ASC_DBG(1, "after AscInitAsc1000Driver()\n"); - spin_lock_irqsave(&boardp->lock, flags); + spin_lock_irqsave(shost->host_lock, flags); } else { /* * If the suggest reset bus flags are set, then reset the bus. @@ -9644,13 +9643,13 @@ static int advansys_reset(struct scsi_cmnd *scp) ret = FAILED; break; } - spin_lock_irqsave(&boardp->lock, flags); + spin_lock_irqsave(shost->host_lock, flags); AdvISR(adv_dvc); } /* Save the time of the most recently completed reset. */ boardp->last_reset = jiffies; - spin_unlock_irqrestore(&boardp->lock, flags); + spin_unlock_irqrestore(shost->host_lock, flags); ASC_DBG(1, "ret %d\n", ret); @@ -9707,13 +9706,12 @@ advansys_biosparam(struct scsi_device *sdev, struct block_device *bdev, */ static irqreturn_t advansys_interrupt(int irq, void *dev_id) { - unsigned long flags; struct Scsi_Host *shost = dev_id; struct asc_board *boardp = shost_priv(shost); irqreturn_t result = IRQ_NONE; ASC_DBG(2, "boardp 0x%p\n", boardp); - spin_lock_irqsave(&boardp->lock, flags); + spin_lock(shost->host_lock); if (ASC_NARROW_BOARD(boardp)) { if (AscIsIntPending(shost->io_port)) { result = IRQ_HANDLED; @@ -9728,7 +9726,7 @@ static irqreturn_t advansys_interrupt(int irq, void *dev_id) ASC_STATS(shost, interrupt); } } - spin_unlock_irqrestore(&boardp->lock, flags); + spin_unlock(shost->host_lock); ASC_DBG(1, "end\n"); return result; @@ -11203,20 +11201,12 @@ static int advansys_queuecommand(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd *)) { struct Scsi_Host *shost = scp->device->host; - struct asc_board *boardp = shost_priv(shost); - unsigned long flags; int asc_res, result = 0; ASC_STATS(shost, queuecommand); scp->scsi_done = done; - /* - * host_lock taken by mid-level prior to call, but need - * to protect against own ISR - */ - spin_lock_irqsave(&boardp->lock, flags); asc_res = asc_execute_scsi_cmnd(scp); - spin_unlock_irqrestore(&boardp->lock, flags); switch (asc_res) { case ASC_NOERROR: @@ -13633,7 +13623,6 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, int share_irq, warn_code, ret; boardp->id = asc_board_count++; - spin_lock_init(&boardp->lock); pdev = (bus_type == ASC_IS_PCI) ? to_pci_dev(boardp->dev) : NULL; if (ASC_NARROW_BOARD(boardp)) { -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 14/17] advansys: Get rid of board index number 2007-09-15 14:39 ` James Bottomley ` (13 preceding siblings ...) 2007-09-16 15:37 ` [PATCH 13/17] advansys: Remove private lock Matthew Wilcox @ 2007-09-16 15:37 ` Matthew Wilcox 2007-09-16 15:37 ` [PATCH 15/17] advansys: Make sdtr_period_tbl a pointer Matthew Wilcox ` (3 subsequent siblings) 18 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-16 15:37 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox It's always a mistake to have your own index of boards; just use the scsi host number. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 236 ++++++++++++++++++++--------------------------- 1 files changed, 100 insertions(+), 136 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index b652032..798545d 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -66,8 +66,7 @@ * 5. check DMA mapping functions for failure * 6. Use scsi_transport_spi * 7. advansys_info is not safe against multiple simultaneous callers - * 8. Kill boardp->id - * 9. Add module_param to override ISA/VLB ioport array + * 8. Add module_param to override ISA/VLB ioport array */ #warning this driver is still not properly converted to the DMA API @@ -2416,7 +2415,6 @@ typedef struct adv_req { */ struct asc_board { struct device *dev; - int id; /* Board Id */ uint flags; /* Board flags */ unsigned int irq; union { @@ -2467,9 +2465,6 @@ struct asc_board { dvc_var.adv_dvc_var) #define adv_dvc_to_pdev(adv_dvc) to_pci_dev(adv_dvc_to_board(adv_dvc)->dev) -/* Number of boards detected in system. */ -static int asc_board_count; - /* Overrun buffer used by all narrow boards. */ static uchar overrun_buf[ASC_OVERRUN_BSIZE] = { 0 }; @@ -2848,9 +2843,8 @@ static const char *advansys_info(struct Scsi_Host *shost) } } else { busname = "?"; - ASC_PRINT2("advansys_info: board %d: unknown " - "bus type %d\n", boardp->id, - asc_dvc_varp->bus_type); + shost_printk(KERN_ERR, shost, "unknown bus " + "type %d\n", asc_dvc_varp->bus_type); } sprintf(info, "AdvanSys SCSI %s: %s: IO 0x%lX-0x%lX, IRQ 0x%X", @@ -4382,7 +4376,6 @@ static void AscSetBank(PortAddr iop_base, uchar bank) val &= ~CC_BANK_ONE; } AscSetChipControl(iop_base, val); - return; } static void AscSetChipIH(PortAddr iop_base, ushort ins_code) @@ -4390,7 +4383,6 @@ static void AscSetChipIH(PortAddr iop_base, ushort ins_code) AscSetBank(iop_base, 1); AscWriteChipIH(iop_base, ins_code); AscSetBank(iop_base, 0); - return; } static int AscStartChip(PortAddr iop_base) @@ -4475,7 +4467,6 @@ static void AscEnableInterrupt(PortAddr iop_base) cfg = AscGetChipCfgLsw(iop_base); AscSetChipCfgLsw(iop_base, cfg | ASC_CFG0_HOST_INT_ON); - return; } static void AscDisableInterrupt(PortAddr iop_base) @@ -4484,7 +4475,6 @@ static void AscDisableInterrupt(PortAddr iop_base) cfg = AscGetChipCfgLsw(iop_base); AscSetChipCfgLsw(iop_base, cfg & (~ASC_CFG0_HOST_INT_ON)); - return; } static uchar AscReadLramByte(PortAddr iop_base, ushort addr) @@ -4542,7 +4532,6 @@ static void AscWriteLramWord(PortAddr iop_base, ushort addr, ushort word_val) { AscSetChipLramAddr(iop_base, addr); AscSetChipLramData(iop_base, word_val); - return; } static void AscWriteLramByte(PortAddr iop_base, ushort addr, uchar byte_val) @@ -4560,7 +4549,6 @@ static void AscWriteLramByte(PortAddr iop_base, ushort addr, uchar byte_val) word_data |= ((ushort)byte_val & 0x00FF); } AscWriteLramWord(iop_base, addr, word_data); - return; } /* @@ -4588,7 +4576,6 @@ AscMemWordCopyPtrToLram(PortAddr iop_base, outpw(iop_base + IOP_RAM_DATA, ((ushort)s_buffer[i + 1] << 8) | s_buffer[i]); } - return; } /* @@ -4608,7 +4595,6 @@ AscMemDWordCopyPtrToLram(PortAddr iop_base, outpw(iop_base + IOP_RAM_DATA, ((ushort)s_buffer[i + 1] << 8) | s_buffer[i]); /* LSW */ outpw(iop_base + IOP_RAM_DATA, ((ushort)s_buffer[i + 3] << 8) | s_buffer[i + 2]); /* MSW */ } - return; } /* @@ -4630,7 +4616,6 @@ AscMemWordCopyPtrFromLram(PortAddr iop_base, d_buffer[i] = word & 0xff; d_buffer[i + 1] = (word >> 8) & 0xff; } - return; } static ASC_DCNT AscMemSumLramWord(PortAddr iop_base, ushort s_addr, int words) @@ -8397,8 +8382,6 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) boardp->adv_reqp = reqp; ASC_DBG(1, "done\n"); - - return; } /* @@ -8569,7 +8552,6 @@ static void AscAckInterrupt(PortAddr iop_base) } } AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, host_flag); - return; } static uchar AscGetSynPeriodIndex(ASC_DVC_VAR *asc_dvc, uchar syn_time) @@ -9325,8 +9307,6 @@ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) } asc_scsi_done(scp); - - return; } static int AscIsrQDone(ASC_DVC_VAR *asc_dvc) @@ -10055,9 +10035,9 @@ static int asc_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, scp->sc_data_direction); if (use_sg > scp->device->host->sg_tablesize) { - ASC_PRINT3("asc_build_req: board %d: use_sg %d > " - "sg_tablesize %d\n", boardp->id, use_sg, - scp->device->host->sg_tablesize); + scmd_printk(KERN_ERR, scp, "use_sg %d > " + "sg_tablesize %d\n", use_sg, + scp->device->host->sg_tablesize); dma_unmap_sg(boardp->dev, slp, scp->use_sg, scp->sc_data_direction); scp->result = HOST_BYTE(DID_ERROR); @@ -10332,8 +10312,8 @@ adv_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, scp->sc_data_direction); if (use_sg > ADV_MAX_SG_LIST) { - ASC_PRINT3("adv_build_req: board %d: use_sg %d > " - "ADV_MAX_SG_LIST %d\n", boardp->id, use_sg, + scmd_printk(KERN_ERR, scp, "use_sg %d > " + "ADV_MAX_SG_LIST %d\n", use_sg, scp->device->host->sg_tablesize); dma_unmap_sg(boardp->dev, slp, scp->use_sg, scp->sc_data_direction); @@ -11174,14 +11154,14 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) ASC_STATS(scp->device->host, exe_busy); break; case ASC_ERROR: - ASC_PRINT2("asc_execute_scsi_cmnd: board %d: ExeScsiQueue() " - "ASC_ERROR, err_code 0x%x\n", boardp->id, err_code); + scmd_printk(KERN_ERR, scp, "ExeScsiQueue() ASC_ERROR, " + "err_code 0x%x\n", err_code); ASC_STATS(scp->device->host, exe_error); scp->result = HOST_BYTE(DID_ERROR); break; default: - ASC_PRINT2("asc_execute_scsi_cmnd: board %d: ExeScsiQueue() " - "unknown, err_code 0x%x\n", boardp->id, err_code); + scmd_printk(KERN_ERR, scp, "ExeScsiQueue() unknown, " + "err_code 0x%x\n", err_code); ASC_STATS(scp->device->host, exe_unknown); scp->result = HOST_BYTE(DID_ERROR); break; @@ -11314,7 +11294,6 @@ static void __devinit AscEnableIsaDma(uchar dma_channel) outp(0x00D6, (ushort)(0xC0 | (dma_channel - 4))); outp(0x00D4, (ushort)(dma_channel - 4)); } - return; } #endif /* CONFIG_ISA */ @@ -11613,7 +11592,6 @@ static int __devinit AscTestExternalLram(ASC_DVC_VAR *asc_dvc) static void __devinit AscWaitEEPWrite(void) { mdelay(20); - return; } static int __devinit AscWriteEEPDataReg(PortAddr iop_base, ushort data_reg) @@ -11936,9 +11914,10 @@ static ushort __devinit AscInitFromEEP(ASC_DVC_VAR *asc_dvc) return (warn_code); } -static int __devinit AscInitGetConfig(struct asc_board *boardp) +static int __devinit AscInitGetConfig(struct Scsi_Host *shost) { - ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; + struct asc_board *board = shost_priv(shost); + ASC_DVC_VAR *asc_dvc = &board->dvc_var.asc_dvc_var; unsigned short warn_code = 0; asc_dvc->init_state = ASC_INIT_STATE_BEG_GET_CFG; @@ -11959,43 +11938,40 @@ static int __devinit AscInitGetConfig(struct asc_board *boardp) case 0: /* No error */ break; case ASC_WARN_IO_PORT_ROTATE: - ASC_PRINT1("AscInitGetConfig: board %d: I/O port address " - "modified\n", boardp->id); + shost_printk(KERN_WARNING, shost, "I/O port address " + "modified\n"); break; case ASC_WARN_AUTO_CONFIG: - ASC_PRINT1("AscInitGetConfig: board %d: I/O port increment " - "switch enabled\n", boardp->id); + shost_printk(KERN_WARNING, shost, "I/O port increment switch " + "enabled\n"); break; case ASC_WARN_EEPROM_CHKSUM: - ASC_PRINT1("AscInitGetConfig: board %d: EEPROM checksum " - "error\n", boardp->id); + shost_printk(KERN_WARNING, shost, "EEPROM checksum error\n"); break; case ASC_WARN_IRQ_MODIFIED: - ASC_PRINT1("AscInitGetConfig: board %d: IRQ modified\n", - boardp->id); + shost_printk(KERN_WARNING, shost, "IRQ modified\n"); break; case ASC_WARN_CMD_QNG_CONFLICT: - ASC_PRINT1("AscInitGetConfig: board %d: tag queuing enabled " - "w/o disconnects\n", boardp->id); + shost_printk(KERN_WARNING, shost, "tag queuing enabled w/o " + "disconnects\n"); break; default: - ASC_PRINT2("AscInitGetConfig: board %d: unknown warning: " - "0x%x\n", boardp->id, warn_code); + shost_printk(KERN_WARNING, shost, "unknown warning: 0x%x\n", + warn_code); break; } - if (asc_dvc->err_code != 0) { - ASC_PRINT3("AscInitGetConfig: board %d error: init_state 0x%x, " - "err_code 0x%x\n", boardp->id, asc_dvc->init_state, - asc_dvc->err_code); - } + if (asc_dvc->err_code != 0) + shost_printk(KERN_ERR, shost, "error 0x%x at init_state " + "0x%x\n", asc_dvc->err_code, asc_dvc->init_state); return asc_dvc->err_code; } -static int __devinit AscInitSetConfig(struct pci_dev *pdev, struct asc_board *boardp) +static int __devinit AscInitSetConfig(struct pci_dev *pdev, struct Scsi_Host *shost) { - ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; + struct asc_board *board = shost_priv(shost); + ASC_DVC_VAR *asc_dvc = &board->dvc_var.asc_dvc_var; PortAddr iop_base = asc_dvc->iop_base; unsigned short cfg_msw; unsigned short warn_code = 0; @@ -12060,37 +12036,32 @@ static int __devinit AscInitSetConfig(struct pci_dev *pdev, struct asc_board *bo case 0: /* No error. */ break; case ASC_WARN_IO_PORT_ROTATE: - ASC_PRINT1("AscInitSetConfig: board %d: I/O port address " - "modified\n", boardp->id); + shost_printk(KERN_WARNING, shost, "I/O port address " + "modified\n"); break; case ASC_WARN_AUTO_CONFIG: - ASC_PRINT1("AscInitSetConfig: board %d: I/O port increment " - "switch enabled\n", boardp->id); + shost_printk(KERN_WARNING, shost, "I/O port increment switch " + "enabled\n"); break; case ASC_WARN_EEPROM_CHKSUM: - ASC_PRINT1("AscInitSetConfig: board %d: EEPROM checksum " - "error\n", boardp->id); + shost_printk(KERN_WARNING, shost, "EEPROM checksum error\n"); break; case ASC_WARN_IRQ_MODIFIED: - ASC_PRINT1("AscInitSetConfig: board %d: IRQ modified\n", - boardp->id); + shost_printk(KERN_WARNING, shost, "IRQ modified\n"); break; case ASC_WARN_CMD_QNG_CONFLICT: - ASC_PRINT1("AscInitSetConfig: board %d: tag queuing w/o " - "disconnects\n", - boardp->id); + shost_printk(KERN_WARNING, shost, "tag queuing w/o " + "disconnects\n"); break; default: - ASC_PRINT2("AscInitSetConfig: board %d: unknown warning: " - "0x%x\n", boardp->id, warn_code); + shost_printk(KERN_WARNING, shost, "unknown warning: 0x%x\n", + warn_code); break; } - if (asc_dvc->err_code != 0) { - ASC_PRINT3("AscInitSetConfig: board %d error: init_state 0x%x, " - "err_code 0x%x\n", boardp->id, asc_dvc->init_state, - asc_dvc->err_code); - } + if (asc_dvc->err_code != 0) + shost_printk(KERN_ERR, shost, "error 0x%x at init_state " + "0x%x\n", asc_dvc->err_code, asc_dvc->init_state); return asc_dvc->err_code; } @@ -13390,9 +13361,10 @@ static int __devinit AdvInitFrom38C1600EEP(ADV_DVC_VAR *asc_dvc) * then 0 is returned. */ static int __devinit -AdvInitGetConfig(struct pci_dev *pdev, struct asc_board *boardp) +AdvInitGetConfig(struct pci_dev *pdev, struct Scsi_Host *shost) { - ADV_DVC_VAR *asc_dvc = &boardp->dvc_var.adv_dvc_var; + struct asc_board *board = shost_priv(shost); + ADV_DVC_VAR *asc_dvc = &board->dvc_var.adv_dvc_var; unsigned short warn_code = 0; AdvPortAddr iop_base = asc_dvc->iop_base; u16 cmd; @@ -13458,15 +13430,12 @@ AdvInitGetConfig(struct pci_dev *pdev, struct asc_board *boardp) warn_code |= status; } - if (warn_code != 0) { - ASC_PRINT2("AdvInitGetConfig: board %d: warning: 0x%x\n", - boardp->id, warn_code); - } + if (warn_code != 0) + shost_printk(KERN_WARNING, shost, "warning: 0x%x\n", warn_code); - if (asc_dvc->err_code) { - ASC_PRINT2("AdvInitGetConfig: board %d error: err_code 0x%x\n", - boardp->id, asc_dvc->err_code); - } + if (asc_dvc->err_code) + shost_printk(KERN_ERR, shost, "error code 0x%x\n", + asc_dvc->err_code); return asc_dvc->err_code; } @@ -13499,9 +13468,10 @@ static struct scsi_host_template advansys_template = { .use_clustering = ENABLE_CLUSTERING, }; -static int __devinit -advansys_wide_init_chip(struct asc_board *boardp, ADV_DVC_VAR *adv_dvc_varp) +static int __devinit advansys_wide_init_chip(struct Scsi_Host *shost) { + struct asc_board *board = shost_priv(shost); + struct adv_dvc_var *adv_dvc = &board->dvc_var.adv_dvc_var; int req_cnt = 0; adv_req_t *reqp = NULL; int sg_cnt = 0; @@ -13512,10 +13482,10 @@ advansys_wide_init_chip(struct asc_board *boardp, ADV_DVC_VAR *adv_dvc_varp) * Allocate buffer carrier structures. The total size * is about 4 KB, so allocate all at once. */ - boardp->carrp = kmalloc(ADV_CARRIER_BUFSIZE, GFP_KERNEL); - ASC_DBG(1, "carrp 0x%p\n", boardp->carrp); + board->carrp = kmalloc(ADV_CARRIER_BUFSIZE, GFP_KERNEL); + ASC_DBG(1, "carrp 0x%p\n", board->carrp); - if (!boardp->carrp) + if (!board->carrp) goto kmalloc_failed; /* @@ -13523,7 +13493,7 @@ advansys_wide_init_chip(struct asc_board *boardp, ADV_DVC_VAR *adv_dvc_varp) * board. The total size is about 16 KB, so allocate all at once. * If the allocation fails decrement and try again. */ - for (req_cnt = adv_dvc_varp->max_host_qng; req_cnt > 0; req_cnt--) { + for (req_cnt = adv_dvc->max_host_qng; req_cnt > 0; req_cnt--) { reqp = kmalloc(sizeof(adv_req_t) * req_cnt, GFP_KERNEL); ASC_DBG(1, "reqp 0x%p, req_cnt %d, bytes %lu\n", reqp, req_cnt, @@ -13536,31 +13506,31 @@ advansys_wide_init_chip(struct asc_board *boardp, ADV_DVC_VAR *adv_dvc_varp) if (!reqp) goto kmalloc_failed; - boardp->orig_reqp = reqp; + board->orig_reqp = reqp; /* * Allocate up to ADV_TOT_SG_BLOCK request structures for * the Wide board. Each structure is about 136 bytes. */ - boardp->adv_sgblkp = NULL; + board->adv_sgblkp = NULL; for (sg_cnt = 0; sg_cnt < ADV_TOT_SG_BLOCK; sg_cnt++) { sgp = kmalloc(sizeof(adv_sgblk_t), GFP_KERNEL); if (!sgp) break; - sgp->next_sgblkp = boardp->adv_sgblkp; - boardp->adv_sgblkp = sgp; + sgp->next_sgblkp = board->adv_sgblkp; + board->adv_sgblkp = sgp; } ASC_DBG(1, "sg_cnt %d * %u = %u bytes\n", sg_cnt, sizeof(adv_sgblk_t), (unsigned)(sizeof(adv_sgblk_t) * sg_cnt)); - if (!boardp->adv_sgblkp) + if (!board->adv_sgblkp) goto kmalloc_failed; - adv_dvc_varp->carrier_buf = boardp->carrp; + adv_dvc->carrier_buf = board->carrp; /* * Point 'adv_reqp' to the request structures and @@ -13571,30 +13541,29 @@ advansys_wide_init_chip(struct asc_board *boardp, ADV_DVC_VAR *adv_dvc_varp) for (; req_cnt > 0; req_cnt--) { reqp[req_cnt - 1].next_reqp = &reqp[req_cnt]; } - boardp->adv_reqp = &reqp[0]; + board->adv_reqp = &reqp[0]; - if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { + if (adv_dvc->chip_type == ADV_CHIP_ASC3550) { ASC_DBG(2, "AdvInitAsc3550Driver()\n"); - warn_code = AdvInitAsc3550Driver(adv_dvc_varp); - } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) { + warn_code = AdvInitAsc3550Driver(adv_dvc); + } else if (adv_dvc->chip_type == ADV_CHIP_ASC38C0800) { ASC_DBG(2, "AdvInitAsc38C0800Driver()\n"); - warn_code = AdvInitAsc38C0800Driver(adv_dvc_varp); + warn_code = AdvInitAsc38C0800Driver(adv_dvc); } else { ASC_DBG(2, "AdvInitAsc38C1600Driver()\n"); - warn_code = AdvInitAsc38C1600Driver(adv_dvc_varp); + warn_code = AdvInitAsc38C1600Driver(adv_dvc); } - err_code = adv_dvc_varp->err_code; + err_code = adv_dvc->err_code; if (warn_code || err_code) { - ASC_PRINT3("advansys_wide_init_chip: board %d error: warn 0x%x," - " error 0x%x\n", boardp->id, warn_code, err_code); + shost_printk(KERN_WARNING, shost, "error: warn 0x%x, error " + "0x%x\n", warn_code, err_code); } goto exit; kmalloc_failed: - ASC_PRINT1("advansys_wide_init_chip: board %d error: kmalloc() " - "failed\n", boardp->id); + shost_printk(KERN_ERR, shost, "error: kmalloc() failed\n"); err_code = ADV_ERROR; exit: return err_code; @@ -13622,7 +13591,6 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, ADV_DVC_VAR *adv_dvc_varp = NULL; int share_irq, warn_code, ret; - boardp->id = asc_board_count++; pdev = (bus_type == ASC_IS_PCI) ? to_pci_dev(boardp->dev) : NULL; if (ASC_NARROW_BOARD(boardp)) { @@ -13653,10 +13621,10 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, boardp->ioremap_addr = ioremap(pci_resource_start(pdev, 1), boardp->asc_n_io_port); if (!boardp->ioremap_addr) { - ASC_PRINT3 - ("advansys_board_found: board %d: ioremap(%x, %d) returned NULL\n", - boardp->id, pci_resource_start(pdev, 1), - boardp->asc_n_io_port); + shost_printk(KERN_ERR, shost, "ioremap(%x, %d) " + "returned NULL\n", + pci_resource_start(pdev, 1), + boardp->asc_n_io_port); ret = -ENODEV; goto err_shost; } @@ -13682,8 +13650,8 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, */ boardp->prtbuf = kmalloc(ASC_PRTBUF_SIZE, GFP_KERNEL); if (!boardp->prtbuf) { - ASC_PRINT2("advansys_board_found: board %d: kmalloc(%d) " - "returned NULL\n", boardp->id, ASC_PRTBUF_SIZE); + shost_printk(KERN_ERR, shost, "kmalloc(%d) returned NULL\n", + ASC_PRTBUF_SIZE); ret = -ENOMEM; goto err_unmap; } @@ -13716,9 +13684,8 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, break; #endif /* CONFIG_PCI */ default: - ASC_PRINT2 - ("advansys_board_found: board %d: unknown adapter type: %d\n", - boardp->id, asc_dvc_varp->bus_type); + shost_printk(KERN_ERR, shost, "unknown adapter type: " + "%d\n", asc_dvc_varp->bus_type); shost->unchecked_isa_dma = TRUE; share_irq = 0; break; @@ -13731,7 +13698,7 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, * referenced only use the bit-wise AND operator "&". */ ASC_DBG(2, "AscInitGetConfig()\n"); - ret = AscInitGetConfig(boardp) ? -ENODEV : 0; + ret = AscInitGetConfig(shost) ? -ENODEV : 0; } else { #ifdef CONFIG_PCI /* @@ -13742,7 +13709,7 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, share_irq = IRQF_SHARED; ASC_DBG(2, "AdvInitGetConfig()\n"); - ret = AdvInitGetConfig(pdev, boardp) ? -ENODEV : 0; + ret = AdvInitGetConfig(pdev, shost) ? -ENODEV : 0; #endif /* CONFIG_PCI */ } @@ -13790,7 +13757,7 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, * Modify board configuration. */ ASC_DBG(2, "AscInitSetConfig()\n"); - ret = AscInitSetConfig(pdev, boardp) ? -ENODEV : 0; + ret = AscInitSetConfig(pdev, shost) ? -ENODEV : 0; if (ret) goto err_free_proc; } else { @@ -14024,9 +13991,9 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, shost->dma_channel = asc_dvc_varp->cfg->isa_dma_channel; ret = request_dma(shost->dma_channel, DRV_NAME); if (ret) { - ASC_PRINT3 - ("advansys_board_found: board %d: request_dma() %d failed %d\n", - boardp->id, shost->dma_channel, ret); + shost_printk(KERN_ERR, shost, "request_dma() " + "%d failed %d\n", + shost->dma_channel, ret); goto err_free_proc; } AscEnableIsaDma(shost->dma_channel); @@ -14042,17 +14009,14 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, if (ret) { if (ret == -EBUSY) { - ASC_PRINT2 - ("advansys_board_found: board %d: request_irq(): IRQ 0x%x already in use.\n", - boardp->id, boardp->irq); + shost_printk(KERN_ERR, shost, "request_irq(): IRQ 0x%x " + "already in use\n", boardp->irq); } else if (ret == -EINVAL) { - ASC_PRINT2 - ("advansys_board_found: board %d: request_irq(): IRQ 0x%x not valid.\n", - boardp->id, boardp->irq); + shost_printk(KERN_ERR, shost, "request_irq(): IRQ 0x%x " + "not valid\n", boardp->irq); } else { - ASC_PRINT3 - ("advansys_board_found: board %d: request_irq(): IRQ 0x%x failed with %d\n", - boardp->id, boardp->irq, ret); + shost_printk(KERN_ERR, shost, "request_irq(): IRQ 0x%x " + "failed with %d\n", boardp->irq, ret); } goto err_free_dma; } @@ -14065,15 +14029,15 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, warn_code = AscInitAsc1000Driver(asc_dvc_varp); if (warn_code || asc_dvc_varp->err_code) { - ASC_PRINT4("advansys_board_found: board %d error: " - "init_state 0x%x, warn 0x%x, error 0x%x\n", - boardp->id, asc_dvc_varp->init_state, - warn_code, asc_dvc_varp->err_code); + shost_printk(KERN_ERR, shost, "error: init_state 0x%x, " + "warn 0x%x, error 0x%x\n", + asc_dvc_varp->init_state, warn_code, + asc_dvc_varp->err_code); if (asc_dvc_varp->err_code) ret = -ENODEV; } } else { - if (advansys_wide_init_chip(boardp, adv_dvc_varp)) + if (advansys_wide_init_chip(shost)) ret = -ENODEV; } -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 15/17] advansys: Make sdtr_period_tbl a pointer 2007-09-15 14:39 ` James Bottomley ` (14 preceding siblings ...) 2007-09-16 15:37 ` [PATCH 14/17] advansys: Get rid of board index number Matthew Wilcox @ 2007-09-16 15:37 ` Matthew Wilcox 2007-09-16 15:37 ` [PATCH 16/17] advansys: Move a couple of fields from struct board to struct adv_dvc Matthew Wilcox ` (2 subsequent siblings) 18 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-16 15:37 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox It's somewhat neater to make this a pointer to one of two tables than initialising an array in the driver. Also delete the unused AscSynIndexToPeriod and rename host_init_sdtr_index to min_sdtr_index Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 90 +++++++++++++---------------------------------- 1 files changed, 25 insertions(+), 65 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 798545d..899151a 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -481,34 +481,22 @@ typedef struct asc_risc_sg_list_q { #define ASC_MAX_PCI_INRAM_TOTAL_QNG 20 #define ASC_MAX_INRAM_TAG_QNG 16 #define ASC_IOADR_GAP 0x10 -#define ASC_MAX_SYN_XFER_NO 16 #define ASC_SYN_MAX_OFFSET 0x0F #define ASC_DEF_SDTR_OFFSET 0x0F #define ASC_SDTR_ULTRA_PCI_10MB_INDEX 0x02 -#define SYN_XFER_NS_0 25 -#define SYN_XFER_NS_1 30 -#define SYN_XFER_NS_2 35 -#define SYN_XFER_NS_3 40 -#define SYN_XFER_NS_4 50 -#define SYN_XFER_NS_5 60 -#define SYN_XFER_NS_6 70 -#define SYN_XFER_NS_7 85 -#define SYN_ULTRA_XFER_NS_0 12 -#define SYN_ULTRA_XFER_NS_1 19 -#define SYN_ULTRA_XFER_NS_2 25 -#define SYN_ULTRA_XFER_NS_3 32 -#define SYN_ULTRA_XFER_NS_4 38 -#define SYN_ULTRA_XFER_NS_5 44 -#define SYN_ULTRA_XFER_NS_6 50 -#define SYN_ULTRA_XFER_NS_7 57 -#define SYN_ULTRA_XFER_NS_8 63 -#define SYN_ULTRA_XFER_NS_9 69 -#define SYN_ULTRA_XFER_NS_10 75 -#define SYN_ULTRA_XFER_NS_11 82 -#define SYN_ULTRA_XFER_NS_12 88 -#define SYN_ULTRA_XFER_NS_13 94 -#define SYN_ULTRA_XFER_NS_14 100 -#define SYN_ULTRA_XFER_NS_15 107 +#define ASYN_SDTR_DATA_FIX_PCI_REV_AB 0x41 + +/* The narrow chip only supports a limited selection of transfer rates. + * These are encoded in the range 0..7 or 0..15 depending whether the chip + * is Ultra-capable or not. These tables let us convert from one to the other. + */ +static const unsigned char asc_syn_xfer_period[8] = { + 25, 30, 35, 40, 50, 60, 70, 85 +}; + +static const unsigned char asc_syn_ultra_xfer_period[16] = { + 12, 19, 25, 32, 38, 44, 50, 57, 63, 69, 75, 82, 88, 94, 100, 107 +}; typedef struct ext_msg { uchar msg_type; @@ -572,7 +560,6 @@ typedef struct asc_dvc_cfg { #define ASC_INIT_STATE_WITHOUT_EEP 0x8000 #define ASC_BUG_FIX_IF_NOT_DWB 0x0001 #define ASC_BUG_FIX_ASYN_USE_SYN 0x0002 -#define ASYN_SDTR_DATA_FIX_PCI_REV_AB 0x41 #define ASC_MIN_TAGGED_CMD 7 #define ASC_MAX_SCSI_RESET_WAIT 30 @@ -602,7 +589,7 @@ typedef struct asc_dvc_var { uchar max_dvc_qng[ASC_MAX_TID + 1]; ASC_SCSI_Q *scsiq_busy_head[ASC_MAX_TID + 1]; ASC_SCSI_Q *scsiq_busy_tail[ASC_MAX_TID + 1]; - uchar sdtr_period_tbl[ASC_MAX_SYN_XFER_NO]; + const uchar *sdtr_period_tbl; ASC_DVC_CFG *cfg; ASC_SCSI_BIT_ID_TYPE pci_fix_asyn_xfer_always; char redo_scam; @@ -611,8 +598,8 @@ typedef struct asc_dvc_var { ASC_DCNT max_dma_count; ASC_SCSI_BIT_ID_TYPE no_scam; ASC_SCSI_BIT_ID_TYPE pci_fix_asyn_xfer; + uchar min_sdtr_index; uchar max_sdtr_index; - uchar host_init_sdtr_index; struct asc_board *drv_ptr; ASC_DCNT uc_break; } ASC_DVC_VAR; @@ -896,7 +883,6 @@ typedef struct asc_mc_saved { #define AscGetMCodeSDTRDoneAtID(port, id) AscReadLramByte((port), (ushort)((ushort)ASCV_SDTR_DONE_BEG+(ushort)id)) #define AscPutMCodeInitSDTRAtID(port, id, data) AscWriteLramByte((port), (ushort)((ushort)ASCV_SDTR_DATA_BEG+(ushort)id), data) #define AscGetMCodeInitSDTRAtID(port, id) AscReadLramByte((port), (ushort)((ushort)ASCV_SDTR_DATA_BEG+(ushort)id)) -#define AscSynIndexToPeriod(index) (uchar)(asc_dvc->sdtr_period_tbl[ (index) ]) #define AscGetChipSignatureByte(port) (uchar)inp((port)+IOP_SIG_BYTE) #define AscGetChipSignatureWord(port) (ushort)inpw((port)+IOP_SIG_WORD) #define AscGetChipVerNo(port) (uchar)inp((port)+IOP_VERSION) @@ -8556,14 +8542,14 @@ static void AscAckInterrupt(PortAddr iop_base) static uchar AscGetSynPeriodIndex(ASC_DVC_VAR *asc_dvc, uchar syn_time) { - uchar *period_table; + const uchar *period_table; int max_index; int min_index; int i; period_table = asc_dvc->sdtr_period_tbl; max_index = (int)asc_dvc->max_sdtr_index; - min_index = (int)asc_dvc->host_init_sdtr_index; + min_index = (int)asc_dvc->min_sdtr_index; if ((syn_time <= period_table[max_index])) { for (i = min_index; i < (max_index - 1); i++) { if (syn_time <= period_table[i]) { @@ -8612,9 +8598,8 @@ AscCalSDTRData(ASC_DVC_VAR *asc_dvc, uchar sdtr_period, uchar syn_offset) uchar sdtr_period_ix; sdtr_period_ix = AscGetSynPeriodIndex(asc_dvc, sdtr_period); - if (sdtr_period_ix > asc_dvc->max_sdtr_index) { + if (sdtr_period_ix > asc_dvc->max_sdtr_index) return 0xFF; - } byte = (sdtr_period_ix << 4) | (syn_offset & ASC_SYN_MAX_OFFSET); return byte; } @@ -8725,15 +8710,14 @@ static int AscIsrChipHalted(ASC_DVC_VAR *asc_dvc) ext_msg.req_ack_offset = ASC_SYN_MAX_OFFSET; } if ((ext_msg.xfer_period < - asc_dvc->sdtr_period_tbl[asc_dvc-> - host_init_sdtr_index]) + asc_dvc->sdtr_period_tbl[asc_dvc->min_sdtr_index]) || (ext_msg.xfer_period > asc_dvc->sdtr_period_tbl[asc_dvc-> max_sdtr_index])) { sdtr_accept = FALSE; ext_msg.xfer_period = asc_dvc->sdtr_period_tbl[asc_dvc-> - host_init_sdtr_index]; + min_sdtr_index]; } if (sdtr_accept) { sdtr_data = @@ -8757,7 +8741,6 @@ static int AscIsrChipHalted(ASC_DVC_VAR *asc_dvc) AscSetChipSDTR(iop_base, asyn_sdtr, tid_no); } else { if (sdtr_accept && (q_cntl & QC_MSG_OUT)) { - q_cntl &= ~QC_MSG_OUT; asc_dvc->sdtr_done |= target_id; asc_dvc->init_sdtr |= target_id; @@ -8772,7 +8755,6 @@ static int AscIsrChipHalted(ASC_DVC_VAR *asc_dvc) tid_no); boardp->sdtr_data[tid_no] = sdtr_data; } else { - q_cntl |= QC_MSG_OUT; AscMsgOutSDTR(asc_dvc, ext_msg.xfer_period, @@ -11407,7 +11389,7 @@ static ushort __devinit AscInitAscDvcVar(ASC_DVC_VAR *asc_dvc) asc_dvc->queue_full_or_busy = 0; asc_dvc->redo_scam = 0; asc_dvc->res2 = 0; - asc_dvc->host_init_sdtr_index = 0; + asc_dvc->min_sdtr_index = 0; asc_dvc->cfg->can_tagged_qng = 0; asc_dvc->cfg->cmd_qng_enabled = 0; asc_dvc->dvc_cntl = ASC_DEF_DVC_CNTL; @@ -11421,34 +11403,12 @@ static ushort __devinit AscInitAscDvcVar(ASC_DVC_VAR *asc_dvc) asc_dvc->cfg->chip_scsi_id = ASC_DEF_CHIP_SCSI_ID; chip_version = AscGetChipVersion(iop_base, asc_dvc->bus_type); asc_dvc->cfg->chip_version = chip_version; - asc_dvc->sdtr_period_tbl[0] = SYN_XFER_NS_0; - asc_dvc->sdtr_period_tbl[1] = SYN_XFER_NS_1; - asc_dvc->sdtr_period_tbl[2] = SYN_XFER_NS_2; - asc_dvc->sdtr_period_tbl[3] = SYN_XFER_NS_3; - asc_dvc->sdtr_period_tbl[4] = SYN_XFER_NS_4; - asc_dvc->sdtr_period_tbl[5] = SYN_XFER_NS_5; - asc_dvc->sdtr_period_tbl[6] = SYN_XFER_NS_6; - asc_dvc->sdtr_period_tbl[7] = SYN_XFER_NS_7; + asc_dvc->sdtr_period_tbl = asc_syn_xfer_period; asc_dvc->max_sdtr_index = 7; if ((asc_dvc->bus_type & ASC_IS_PCI) && (chip_version >= ASC_CHIP_VER_PCI_ULTRA_3150)) { asc_dvc->bus_type = ASC_IS_PCI_ULTRA; - asc_dvc->sdtr_period_tbl[0] = SYN_ULTRA_XFER_NS_0; - asc_dvc->sdtr_period_tbl[1] = SYN_ULTRA_XFER_NS_1; - asc_dvc->sdtr_period_tbl[2] = SYN_ULTRA_XFER_NS_2; - asc_dvc->sdtr_period_tbl[3] = SYN_ULTRA_XFER_NS_3; - asc_dvc->sdtr_period_tbl[4] = SYN_ULTRA_XFER_NS_4; - asc_dvc->sdtr_period_tbl[5] = SYN_ULTRA_XFER_NS_5; - asc_dvc->sdtr_period_tbl[6] = SYN_ULTRA_XFER_NS_6; - asc_dvc->sdtr_period_tbl[7] = SYN_ULTRA_XFER_NS_7; - asc_dvc->sdtr_period_tbl[8] = SYN_ULTRA_XFER_NS_8; - asc_dvc->sdtr_period_tbl[9] = SYN_ULTRA_XFER_NS_9; - asc_dvc->sdtr_period_tbl[10] = SYN_ULTRA_XFER_NS_10; - asc_dvc->sdtr_period_tbl[11] = SYN_ULTRA_XFER_NS_11; - asc_dvc->sdtr_period_tbl[12] = SYN_ULTRA_XFER_NS_12; - asc_dvc->sdtr_period_tbl[13] = SYN_ULTRA_XFER_NS_13; - asc_dvc->sdtr_period_tbl[14] = SYN_ULTRA_XFER_NS_14; - asc_dvc->sdtr_period_tbl[15] = SYN_ULTRA_XFER_NS_15; + asc_dvc->sdtr_period_tbl = asc_syn_ultra_xfer_period; asc_dvc->max_sdtr_index = 15; if (chip_version == ASC_CHIP_VER_PCI_ULTRA_3150) { AscSetExtraControl(iop_base, @@ -11889,7 +11849,7 @@ static ushort __devinit AscInitFromEEP(ASC_DVC_VAR *asc_dvc) asc_dvc->cfg->chip_scsi_id = ASC_EEP_GET_CHIP_ID(eep_config); if (((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == ASC_IS_PCI_ULTRA) && !(asc_dvc->dvc_cntl & ASC_CNTL_SDTR_ENABLE_ULTRA)) { - asc_dvc->host_init_sdtr_index = ASC_SDTR_ULTRA_PCI_10MB_INDEX; + asc_dvc->min_sdtr_index = ASC_SDTR_ULTRA_PCI_10MB_INDEX; } for (i = 0; i <= ASC_MAX_TID; i++) { @@ -11897,7 +11857,7 @@ static ushort __devinit AscInitFromEEP(ASC_DVC_VAR *asc_dvc) asc_dvc->cfg->max_tag_qng[i] = eep_config->max_tag_qng; asc_dvc->cfg->sdtr_period_offset[i] = (uchar)(ASC_DEF_SDTR_OFFSET | - (asc_dvc->host_init_sdtr_index << 4)); + (asc_dvc->min_sdtr_index << 4)); } eep_config->cfg_msw = AscGetChipCfgMsw(iop_base); if (write_eep) { -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 16/17] advansys: Move a couple of fields from struct board to struct adv_dvc 2007-09-15 14:39 ` James Bottomley ` (15 preceding siblings ...) 2007-09-16 15:37 ` [PATCH 15/17] advansys: Make sdtr_period_tbl a pointer Matthew Wilcox @ 2007-09-16 15:37 ` Matthew Wilcox 2007-09-16 15:37 ` [PATCH 17/17] advansys: Remove DvcGetPhyAddr Matthew Wilcox 2007-09-16 20:39 ` [PATCH 10/17] advansys: Remove asc_board_t typedef and ASC_BOARDP macro Matthew Wilcox 18 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-16 15:37 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox board->carrp is a duplicate of asc_dvc->carrier_buf, so cut out the middle-man and assign directly to carrier_buf. Move orig_reqp to adv_dvc too, since it's wide-board specific. Also eliminate an unnecessary BUG_ON (we'll never get there with a NULL carrier_buf, and will crash if we do). The bulk of this patch is rearranging structures so everything's declared in the right order. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 193 ++++++++++++++++++++++------------------------ 1 files changed, 92 insertions(+), 101 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 899151a..2b50aa1 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -983,15 +983,14 @@ typedef struct asc_mc_saved { * elements. Allow each command to have at least one ADV_SG_BLOCK structure. * This allows about 15 commands to have the maximum 17 ADV_SG_BLOCK * structures or 255 scatter-gather elements. - * */ #define ADV_TOT_SG_BLOCK ASC_DEF_MAX_HOST_QNG /* - * Define Adv Library required maximum number of scatter-gather - * elements per request. + * Define maximum number of scatter-gather elements per request. */ #define ADV_MAX_SG_LIST 255 +#define NO_OF_SG_PER_BLOCK 15 /* Number of SG blocks needed. */ #define ADV_NUM_SG_BLOCK \ @@ -1839,55 +1838,6 @@ typedef struct adv_dvc_cfg { struct adv_dvc_var; struct adv_scsi_req_q; -/* - * Adapter operation variable structure. - * - * One structure is required per host adapter. - * - * Field naming convention: - * - * *_able indicates both whether a feature should be enabled or disabled - * and whether a device isi capable of the feature. At initialization - * this field may be set, but later if a device is found to be incapable - * of the feature, the field is cleared. - */ -typedef struct adv_dvc_var { - AdvPortAddr iop_base; /* I/O port address */ - ushort err_code; /* fatal error code */ - ushort bios_ctrl; /* BIOS control word, EEPROM word 12 */ - ushort wdtr_able; /* try WDTR for a device */ - ushort sdtr_able; /* try SDTR for a device */ - ushort ultra_able; /* try SDTR Ultra speed for a device */ - ushort sdtr_speed1; /* EEPROM SDTR Speed for TID 0-3 */ - ushort sdtr_speed2; /* EEPROM SDTR Speed for TID 4-7 */ - ushort sdtr_speed3; /* EEPROM SDTR Speed for TID 8-11 */ - ushort sdtr_speed4; /* EEPROM SDTR Speed for TID 12-15 */ - ushort tagqng_able; /* try tagged queuing with a device */ - ushort ppr_able; /* PPR message capable per TID bitmask. */ - uchar max_dvc_qng; /* maximum number of tagged commands per device */ - ushort start_motor; /* start motor command allowed */ - uchar scsi_reset_wait; /* delay in seconds after scsi bus reset */ - uchar chip_no; /* should be assigned by caller */ - uchar max_host_qng; /* maximum number of Q'ed command allowed */ - ushort no_scam; /* scam_tolerant of EEPROM */ - struct asc_board *drv_ptr; /* driver pointer to private structure */ - uchar chip_scsi_id; /* chip SCSI target ID */ - uchar chip_type; - uchar bist_err_code; - ADV_CARR_T *carrier_buf; - ADV_CARR_T *carr_freelist; /* Carrier free list. */ - ADV_CARR_T *icq_sp; /* Initiator command queue stopper pointer. */ - ADV_CARR_T *irq_sp; /* Initiator response queue stopper pointer. */ - ushort carr_pending_cnt; /* Count of pending carriers. */ - /* - * Note: The following fields will not be used after initialization. The - * driver may discard the buffer after initialization is done. - */ - ADV_DVC_CFG *cfg; /* temporary configuration structure */ -} ADV_DVC_VAR; - -#define NO_OF_SG_PER_BLOCK 15 - typedef struct asc_sg_block { uchar reserved1; uchar reserved2; @@ -1946,6 +1896,83 @@ typedef struct adv_scsi_req_q { } ADV_SCSI_REQ_Q; /* + * The following two structures are used to process Wide Board requests. + * + * The ADV_SCSI_REQ_Q structure in adv_req_t is passed to the Adv Library + * and microcode with the ADV_SCSI_REQ_Q field 'srb_ptr' pointing to the + * adv_req_t. The adv_req_t structure 'cmndp' field in turn points to the + * Mid-Level SCSI request structure. + * + * Zero or more ADV_SG_BLOCK are used with each ADV_SCSI_REQ_Q. Each + * ADV_SG_BLOCK structure holds 15 scatter-gather elements. Under Linux + * up to 255 scatter-gather elements may be used per request or + * ADV_SCSI_REQ_Q. + * + * Both structures must be 32 byte aligned. + */ +typedef struct adv_sgblk { + ADV_SG_BLOCK sg_block; /* Sgblock structure. */ + uchar align[32]; /* Sgblock structure padding. */ + struct adv_sgblk *next_sgblkp; /* Next scatter-gather structure. */ +} adv_sgblk_t; + +typedef struct adv_req { + ADV_SCSI_REQ_Q scsi_req_q; /* Adv Library request structure. */ + uchar align[32]; /* Request structure padding. */ + struct scsi_cmnd *cmndp; /* Mid-Level SCSI command pointer. */ + adv_sgblk_t *sgblkp; /* Adv Library scatter-gather pointer. */ + struct adv_req *next_reqp; /* Next Request Structure. */ +} adv_req_t; + +/* + * Adapter operation variable structure. + * + * One structure is required per host adapter. + * + * Field naming convention: + * + * *_able indicates both whether a feature should be enabled or disabled + * and whether a device isi capable of the feature. At initialization + * this field may be set, but later if a device is found to be incapable + * of the feature, the field is cleared. + */ +typedef struct adv_dvc_var { + AdvPortAddr iop_base; /* I/O port address */ + ushort err_code; /* fatal error code */ + ushort bios_ctrl; /* BIOS control word, EEPROM word 12 */ + ushort wdtr_able; /* try WDTR for a device */ + ushort sdtr_able; /* try SDTR for a device */ + ushort ultra_able; /* try SDTR Ultra speed for a device */ + ushort sdtr_speed1; /* EEPROM SDTR Speed for TID 0-3 */ + ushort sdtr_speed2; /* EEPROM SDTR Speed for TID 4-7 */ + ushort sdtr_speed3; /* EEPROM SDTR Speed for TID 8-11 */ + ushort sdtr_speed4; /* EEPROM SDTR Speed for TID 12-15 */ + ushort tagqng_able; /* try tagged queuing with a device */ + ushort ppr_able; /* PPR message capable per TID bitmask. */ + uchar max_dvc_qng; /* maximum number of tagged commands per device */ + ushort start_motor; /* start motor command allowed */ + uchar scsi_reset_wait; /* delay in seconds after scsi bus reset */ + uchar chip_no; /* should be assigned by caller */ + uchar max_host_qng; /* maximum number of Q'ed command allowed */ + ushort no_scam; /* scam_tolerant of EEPROM */ + struct asc_board *drv_ptr; /* driver pointer to private structure */ + uchar chip_scsi_id; /* chip SCSI target ID */ + uchar chip_type; + uchar bist_err_code; + ADV_CARR_T *carrier_buf; + ADV_CARR_T *carr_freelist; /* Carrier free list. */ + ADV_CARR_T *icq_sp; /* Initiator command queue stopper pointer. */ + ADV_CARR_T *irq_sp; /* Initiator response queue stopper pointer. */ + ushort carr_pending_cnt; /* Count of pending carriers. */ + struct adv_req *orig_reqp; /* adv_req_t memory block. */ + /* + * Note: The following fields will not be used after initialization. The + * driver may discard the buffer after initialization is done. + */ + ADV_DVC_CFG *cfg; /* temporary configuration structure */ +} ADV_DVC_VAR; + +/* * Microcode idle loop commands */ #define IDLE_CMD_COMPLETED 0 @@ -2362,37 +2389,6 @@ struct asc_stats { #endif /* ADVANSYS_STATS */ /* - * Adv Library Request Structures - * - * The following two structures are used to process Wide Board requests. - * - * The ADV_SCSI_REQ_Q structure in adv_req_t is passed to the Adv Library - * and microcode with the ADV_SCSI_REQ_Q field 'srb_ptr' pointing to the - * adv_req_t. The adv_req_t structure 'cmndp' field in turn points to the - * Mid-Level SCSI request structure. - * - * Zero or more ADV_SG_BLOCK are used with each ADV_SCSI_REQ_Q. Each - * ADV_SG_BLOCK structure holds 15 scatter-gather elements. Under Linux - * up to 255 scatter-gather elements may be used per request or - * ADV_SCSI_REQ_Q. - * - * Both structures must be 32 byte aligned. - */ -typedef struct adv_sgblk { - ADV_SG_BLOCK sg_block; /* Sgblock structure. */ - uchar align[32]; /* Sgblock structure padding. */ - struct adv_sgblk *next_sgblkp; /* Next scatter-gather structure. */ -} adv_sgblk_t; - -typedef struct adv_req { - ADV_SCSI_REQ_Q scsi_req_q; /* Adv Library request structure. */ - uchar align[32]; /* Request structure padding. */ - struct scsi_cmnd *cmndp; /* Mid-Level SCSI command pointer. */ - adv_sgblk_t *sgblkp; /* Adv Library scatter-gather pointer. */ - struct adv_req *next_reqp; /* Next Request Structure. */ -} adv_req_t; - -/* * Structure allocated for each board. * * This structure is allocated by scsi_host_alloc() at the end @@ -2437,8 +2433,6 @@ struct asc_board { */ void __iomem *ioremap_addr; /* I/O Memory remap address. */ ushort ioport; /* I/O Port address. */ - ADV_CARR_T *carrp; /* ADV_CARR_T memory block. */ - adv_req_t *orig_reqp; /* adv_req_t memory block. */ adv_req_t *adv_reqp; /* Request structures. */ adv_sgblk_t *adv_sgblkp; /* Scatter-gather structures. */ ushort bios_signature; /* BIOS Signature. */ @@ -6518,8 +6512,6 @@ static void AdvBuildCarrierFreelist(struct adv_dvc_var *asc_dvc) ADV_SDCNT buf_size; ADV_PADDR carr_paddr; - BUG_ON(!asc_dvc->carrier_buf); - carrp = (ADV_CARR_T *) ADV_16BALIGN(asc_dvc->carrier_buf); asc_dvc->carr_freelist = NULL; if (carrp == asc_dvc->carrier_buf) { @@ -13442,10 +13434,10 @@ static int __devinit advansys_wide_init_chip(struct Scsi_Host *shost) * Allocate buffer carrier structures. The total size * is about 4 KB, so allocate all at once. */ - board->carrp = kmalloc(ADV_CARRIER_BUFSIZE, GFP_KERNEL); - ASC_DBG(1, "carrp 0x%p\n", board->carrp); + adv_dvc->carrier_buf = kmalloc(ADV_CARRIER_BUFSIZE, GFP_KERNEL); + ASC_DBG(1, "carrier_buf 0x%p\n", adv_dvc->carrier_buf); - if (!board->carrp) + if (!adv_dvc->carrier_buf) goto kmalloc_failed; /* @@ -13466,7 +13458,7 @@ static int __devinit advansys_wide_init_chip(struct Scsi_Host *shost) if (!reqp) goto kmalloc_failed; - board->orig_reqp = reqp; + adv_dvc->orig_reqp = reqp; /* * Allocate up to ADV_TOT_SG_BLOCK request structures for @@ -13490,8 +13482,6 @@ static int __devinit advansys_wide_init_chip(struct Scsi_Host *shost) if (!board->adv_sgblkp) goto kmalloc_failed; - adv_dvc->carrier_buf = board->carrp; - /* * Point 'adv_reqp' to the request structures and * link them together. @@ -13529,15 +13519,16 @@ static int __devinit advansys_wide_init_chip(struct Scsi_Host *shost) return err_code; } -static void advansys_wide_free_mem(struct asc_board *boardp) +static void advansys_wide_free_mem(struct asc_board *board) { - kfree(boardp->carrp); - boardp->carrp = NULL; - kfree(boardp->orig_reqp); - boardp->orig_reqp = boardp->adv_reqp = NULL; - while (boardp->adv_sgblkp) { - adv_sgblk_t *sgp = boardp->adv_sgblkp; - boardp->adv_sgblkp = sgp->next_sgblkp; + struct adv_dvc_var *adv_dvc = &board->dvc_var.adv_dvc_var; + kfree(adv_dvc->carrier_buf); + adv_dvc->carrier_buf = NULL; + kfree(adv_dvc->orig_reqp); + adv_dvc->orig_reqp = board->adv_reqp = NULL; + while (board->adv_sgblkp) { + adv_sgblk_t *sgp = board->adv_sgblkp; + board->adv_sgblkp = sgp->next_sgblkp; kfree(sgp); } } -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 17/17] advansys: Remove DvcGetPhyAddr 2007-09-15 14:39 ` James Bottomley ` (16 preceding siblings ...) 2007-09-16 15:37 ` [PATCH 16/17] advansys: Move a couple of fields from struct board to struct adv_dvc Matthew Wilcox @ 2007-09-16 15:37 ` Matthew Wilcox 2007-09-16 20:39 ` [PATCH 10/17] advansys: Remove asc_board_t typedef and ASC_BOARDP macro Matthew Wilcox 18 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-16 15:37 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox This rather complex function boiled down to calling virt_to_bus(). Also get rid of some obsolete defines and variables that could never vary. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 73 ++--------------------------------------------- 1 files changed, 3 insertions(+), 70 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 2b50aa1..bd5bbc9 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -992,19 +992,6 @@ typedef struct asc_mc_saved { #define ADV_MAX_SG_LIST 255 #define NO_OF_SG_PER_BLOCK 15 -/* Number of SG blocks needed. */ -#define ADV_NUM_SG_BLOCK \ - ((ADV_MAX_SG_LIST + (NO_OF_SG_PER_BLOCK - 1))/NO_OF_SG_PER_BLOCK) - -/* Total contiguous memory needed for SG blocks. */ -#define ADV_SG_TOTAL_MEM_SIZE \ - (sizeof(ADV_SG_BLOCK) * ADV_NUM_SG_BLOCK) - -#define ADV_PAGE_SIZE PAGE_SIZE - -#define ADV_NUM_PAGE_CROSSING \ - ((ADV_SG_TOTAL_MEM_SIZE + (ADV_PAGE_SIZE - 1))/ADV_PAGE_SIZE) - #define ADV_EEP_DVC_CFG_BEGIN (0x00) #define ADV_EEP_DVC_CFG_END (0x15) #define ADV_EEP_DVC_CTL_BEGIN (0x16) /* location of OEM name */ @@ -1792,8 +1779,7 @@ typedef struct adv_carr_t { #define ASC_GET_CARRP(carrp) ((carrp) & ASC_NEXT_VPA_MASK) #define ADV_CARRIER_NUM_PAGE_CROSSING \ - (((ADV_CARRIER_COUNT * sizeof(ADV_CARR_T)) + \ - (ADV_PAGE_SIZE - 1))/ADV_PAGE_SIZE) + (((ADV_CARRIER_COUNT * sizeof(ADV_CARR_T)) + (PAGE_SIZE - 1))/PAGE_SIZE) #define ADV_CARRIER_BUFSIZE \ ((ADV_CARRIER_COUNT + ADV_CARRIER_NUM_PAGE_CROSSING) * sizeof(ADV_CARR_T)) @@ -2174,16 +2160,6 @@ do { \ #define QHSTA_M_FROZEN_TIDQ 0x46 /* TID Queue frozen. */ #define QHSTA_M_SGBACKUP_ERROR 0x47 /* Scatter-Gather backup error */ -/* - * DvcGetPhyAddr() flag arguments - */ -#define ADV_IS_SCSIQ_FLAG 0x01 /* 'addr' is ASC_SCSI_REQ_Q pointer */ -#define ADV_ASCGETSGLIST_VADDR 0x02 /* 'addr' is AscGetSGList() virtual addr */ -#define ADV_IS_SENSE_FLAG 0x04 /* 'addr' is sense virtual pointer */ -#define ADV_IS_DATA_FLAG 0x08 /* 'addr' is data virtual pointer */ -#define ADV_IS_SGLIST_FLAG 0x10 /* 'addr' is sglist virtual pointer */ -#define ADV_IS_CARRIER_FLAG 0x20 /* 'addr' is ADV_CARR_T pointer */ - /* Return the address that is aligned at the next doubleword >= to 'addr'. */ #define ADV_8BALIGN(addr) (((ulong) (addr) + 0x7) & ~0x7) #define ADV_16BALIGN(addr) (((ulong) (addr) + 0xF) & ~0xF) @@ -6483,29 +6459,6 @@ static int AdvLoadMicrocode(AdvPortAddr iop_base, unsigned char *buf, int size, return 0; } -/* - * DvcGetPhyAddr() - * - * Return the physical address of 'vaddr' and set '*lenp' to the - * number of physically contiguous bytes that follow 'vaddr'. - * 'flag' indicates the type of structure whose physical address - * is being translated. - * - * Note: Because Linux currently doesn't page the kernel and all - * kernel buffers are physically contiguous, leave '*lenp' unchanged. - */ -ADV_PADDR -DvcGetPhyAddr(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq, - uchar *vaddr, ADV_SDCNT *lenp, int flag) -{ - ADV_PADDR paddr = virt_to_bus(vaddr); - - ASC_DBG(4, "vaddr 0x%p, lenp 0x%p *lenp %lu, paddr 0x%lx\n", - vaddr, lenp, (ulong)*((ulong *)lenp), (ulong)paddr); - - return paddr; -} - static void AdvBuildCarrierFreelist(struct adv_dvc_var *asc_dvc) { ADV_CARR_T *carrp; @@ -6522,24 +6475,10 @@ static void AdvBuildCarrierFreelist(struct adv_dvc_var *asc_dvc) do { /* Get physical address of the carrier 'carrp'. */ - ADV_DCNT contig_len = sizeof(ADV_CARR_T); - carr_paddr = cpu_to_le32(DvcGetPhyAddr(asc_dvc, NULL, - (uchar *)carrp, - (ADV_SDCNT *)&contig_len, - ADV_IS_CARRIER_FLAG)); + carr_paddr = cpu_to_le32(virt_to_bus(carrp)); buf_size -= sizeof(ADV_CARR_T); - /* - * If the current carrier is not physically contiguous, then - * maybe there was a page crossing. Try the next carrier - * aligned start address. - */ - if (contig_len < sizeof(ADV_CARR_T)) { - carrp++; - continue; - } - carrp->carr_pa = carr_paddr; carrp->carr_va = cpu_to_le32(ADV_VADDR_TO_U32(carrp)); @@ -10915,7 +10854,6 @@ static int AscExeScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq) static int AdvExeScsiQueue(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq) { AdvPortAddr iop_base; - ADV_DCNT req_size; ADV_PADDR req_paddr; ADV_CARR_T *new_carrp; @@ -10953,13 +10891,8 @@ static int AdvExeScsiQueue(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq) */ scsiq->a_flag &= ~ADV_SCSIQ_DONE; - req_size = sizeof(ADV_SCSI_REQ_Q); - req_paddr = DvcGetPhyAddr(asc_dvc, scsiq, (uchar *)scsiq, - (ADV_SDCNT *)&req_size, ADV_IS_SCSIQ_FLAG); - + req_paddr = virt_to_bus(scsiq); BUG_ON(req_paddr & 31); - BUG_ON(req_size < sizeof(ADV_SCSI_REQ_Q)); - /* Wait for assertion before making little-endian */ req_paddr = cpu_to_le32(req_paddr); -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 10/17] advansys: Remove asc_board_t typedef and ASC_BOARDP macro 2007-09-15 14:39 ` James Bottomley ` (17 preceding siblings ...) 2007-09-16 15:37 ` [PATCH 17/17] advansys: Remove DvcGetPhyAddr Matthew Wilcox @ 2007-09-16 20:39 ` Matthew Wilcox 18 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-16 20:39 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox asc_board_t was simply a typedef for struct asc_board. ASC_BOARDP() can be replaced by shost_priv() except in the ASC_STATS* macros which rely on the cast; add an explicit cast there. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 132 ++++++++++++++++++----------------------------- 1 files changed, 51 insertions(+), 81 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 4c792db..e17626c 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -2203,10 +2203,7 @@ do { \ (sizeof(ADV_SG_BLOCK) * \ ((ADV_MAX_SG_LIST + (NO_OF_SG_PER_BLOCK - 1))/NO_OF_SG_PER_BLOCK)) -/* Reference Scsi_Host hostdata */ -#define ASC_BOARDP(host) ((asc_board_t *) &((host)->hostdata)) - -/* asc_board_t flags */ +/* struct asc_board flags */ #define ASC_IS_WIDE_BOARD 0x04 /* AdvanSys Wide Board */ #define ASC_NARROW_BOARD(boardp) (((boardp)->flags & ASC_IS_WIDE_BOARD) == 0) @@ -2244,15 +2241,12 @@ do { \ #define HOST_BYTE(byte) ((byte) << 16) #define DRIVER_BYTE(byte) ((byte) << 24) +#define ASC_STATS(shost, counter) ASC_STATS_ADD(shost, counter, 1) #ifndef ADVANSYS_STATS -#define ASC_STATS(shost, counter) #define ASC_STATS_ADD(shost, counter, count) #else /* ADVANSYS_STATS */ -#define ASC_STATS(shost, counter) \ - (ASC_BOARDP(shost)->asc_stats.counter++) - #define ASC_STATS_ADD(shost, counter, count) \ - (ASC_BOARDP(shost)->asc_stats.counter += (count)) + (((struct asc_board *) shost_priv(shost))->asc_stats.counter += (count)) #endif /* ADVANSYS_STATS */ #define ASC_CEILING(val, unit) (((val) + ((unit) - 1))/(unit)) @@ -2475,7 +2469,7 @@ typedef struct adv_req { * of the 'Scsi_Host' structure starting at the 'hostdata' * field. It is guaranteed to be allocated from DMA-able memory. */ -typedef struct asc_board { +struct asc_board { struct device *dev; int id; /* Board Id */ uint flags; /* Board flags */ @@ -2523,7 +2517,7 @@ typedef struct asc_board { ushort bios_version; /* BIOS Version. */ ushort bios_codeseg; /* BIOS Code Segment. */ ushort bios_codelen; /* BIOS Code Segment Length. */ -} asc_board_t; +}; #define adv_dvc_to_board(adv_dvc) container_of(adv_dvc, struct asc_board, \ dvc_var.adv_dvc_var) @@ -2543,9 +2537,7 @@ static int asc_dbglvl = 3; */ static void asc_prt_scsi_host(struct Scsi_Host *s) { - asc_board_t *boardp; - - boardp = ASC_BOARDP(s); + struct asc_board *boardp = shost_priv(s); printk("Scsi_Host at addr 0x%lx\n", (ulong)s); printk(" host_busy %u, host_no %d, last_reset %d,\n", @@ -2561,11 +2553,11 @@ static void asc_prt_scsi_host(struct Scsi_Host *s) s->cmd_per_lun, s->sg_tablesize, s->unchecked_isa_dma); if (ASC_NARROW_BOARD(boardp)) { - asc_prt_asc_dvc_var(&ASC_BOARDP(s)->dvc_var.asc_dvc_var); - asc_prt_asc_dvc_cfg(&ASC_BOARDP(s)->dvc_cfg.asc_dvc_cfg); + asc_prt_asc_dvc_var(boardp->dvc_var.asc_dvc_var); + asc_prt_asc_dvc_cfg(boardp->dvc_cfg.asc_dvc_cfg); } else { - asc_prt_adv_dvc_var(&ASC_BOARDP(s)->dvc_var.adv_dvc_var); - asc_prt_adv_dvc_cfg(&ASC_BOARDP(s)->dvc_cfg.adv_dvc_cfg); + asc_prt_adv_dvc_var(boardp->dvc_var.adv_dvc_var); + asc_prt_adv_dvc_cfg(boardp->dvc_cfg.adv_dvc_cfg); } } @@ -2914,13 +2906,12 @@ static void asc_prt_hex(char *f, uchar *s, int l) static const char *advansys_info(struct Scsi_Host *shost) { static char info[ASC_INFO_SIZE]; - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(shost); ASC_DVC_VAR *asc_dvc_varp; ADV_DVC_VAR *adv_dvc_varp; char *busname; char *widename = NULL; - boardp = ASC_BOARDP(shost); if (ASC_NARROW_BOARD(boardp)) { asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; ASC_DBG(1, "advansys_info: begin\n"); @@ -3032,14 +3023,13 @@ static int asc_prt_line(char *buf, int buflen, char *fmt, ...) */ static int asc_prt_board_devices(struct Scsi_Host *shost, char *cp, int cplen) { - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(shost); int leftlen; int totlen; int len; int chip_scsi_id; int i; - boardp = ASC_BOARDP(shost); leftlen = cplen; totlen = len = 0; @@ -3073,13 +3063,12 @@ static int asc_prt_board_devices(struct Scsi_Host *shost, char *cp, int cplen) */ static int asc_prt_adv_bios(struct Scsi_Host *shost, char *cp, int cplen) { - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(shost); int leftlen; int totlen; int len; ushort major, minor, letter; - boardp = ASC_BOARDP(shost); leftlen = cplen; totlen = len = 0; @@ -3239,7 +3228,7 @@ static int asc_get_eeprom_string(ushort *serialnum, uchar *cp) */ static int asc_prt_asc_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen) { - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(shost); ASC_DVC_VAR *asc_dvc_varp; int leftlen; int totlen; @@ -3251,7 +3240,6 @@ static int asc_prt_asc_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen #endif /* CONFIG_ISA */ uchar serialstr[13]; - boardp = ASC_BOARDP(shost); asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; ep = &boardp->eep_config.asc_eep; @@ -3373,7 +3361,7 @@ static int asc_prt_asc_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen */ static int asc_prt_adv_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen) { - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(shost); ADV_DVC_VAR *adv_dvc_varp; int leftlen; int totlen; @@ -3388,7 +3376,6 @@ static int asc_prt_adv_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen ushort *wordp; ushort sdtr_speed = 0; - boardp = ASC_BOARDP(shost); adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { ep_3550 = &boardp->eep_config.adv_3550_eep; @@ -3660,14 +3647,12 @@ static int asc_prt_adv_board_eeprom(struct Scsi_Host *shost, char *cp, int cplen */ static int asc_prt_driver_conf(struct Scsi_Host *shost, char *cp, int cplen) { - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(shost); int leftlen; int totlen; int len; int chip_scsi_id; - boardp = ASC_BOARDP(shost); - leftlen = cplen; totlen = len = 0; @@ -3724,7 +3709,7 @@ static int asc_prt_driver_conf(struct Scsi_Host *shost, char *cp, int cplen) */ static int asc_prt_asc_board_info(struct Scsi_Host *shost, char *cp, int cplen) { - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(shost); int chip_scsi_id; int leftlen; int totlen; @@ -3734,7 +3719,6 @@ static int asc_prt_asc_board_info(struct Scsi_Host *shost, char *cp, int cplen) int i; int renegotiate = 0; - boardp = ASC_BOARDP(shost); v = &boardp->dvc_var.asc_dvc_var; c = &boardp->dvc_cfg.asc_dvc_cfg; chip_scsi_id = c->chip_scsi_id; @@ -3912,7 +3896,7 @@ static int asc_prt_asc_board_info(struct Scsi_Host *shost, char *cp, int cplen) */ static int asc_prt_adv_board_info(struct Scsi_Host *shost, char *cp, int cplen) { - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(shost); int leftlen; int totlen; int len; @@ -3929,7 +3913,6 @@ static int asc_prt_adv_board_info(struct Scsi_Host *shost, char *cp, int cplen) ushort period = 0; int renegotiate = 0; - boardp = ASC_BOARDP(shost); v = &boardp->dvc_var.adv_dvc_var; c = &boardp->dvc_cfg.adv_dvc_cfg; iop_base = v->iop_base; @@ -4192,17 +4175,11 @@ asc_proc_copy(off_t advoffset, off_t offset, char *curbuf, int leftlen, */ static int asc_prt_board_stats(struct Scsi_Host *shost, char *cp, int cplen) { - int leftlen; - int totlen; - int len; - struct asc_stats *s; - asc_board_t *boardp; - - leftlen = cplen; - totlen = len = 0; + struct asc_board *boardp = shost_priv(shost); + struct asc_stats *s = &boardp->asc_stats; - boardp = ASC_BOARDP(shost); - s = &boardp->asc_stats; + int leftlen = cplen; + int len, totlen = 0; len = asc_prt_line(cp, leftlen, "\nLinux Driver Statistics for AdvanSys SCSI Host %d:\n", @@ -4309,7 +4286,7 @@ static int advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, off_t offset, int length, int inout) { - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(shost); char *cp; int cplen; int cnt; @@ -4323,16 +4300,13 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, /* * User write not supported. */ - if (inout == TRUE) { - return (-ENOSYS); - } + if (inout == TRUE) + return -ENOSYS; /* * User read of /proc/scsi/advansys/[0...] file. */ - boardp = ASC_BOARDP(shost); - /* Copy read data starting at the beginning of the buffer. */ *start = buffer; curbuf = buffer; @@ -4477,7 +4451,7 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, static void asc_scsi_done(struct scsi_cmnd *scp) { - struct asc_board *boardp = ASC_BOARDP(scp->device->host); + struct asc_board *boardp = shost_priv(scp->device->host); if (scp->use_sg) dma_unmap_sg(boardp->dev, @@ -8376,7 +8350,7 @@ static void adv_async_callback(ADV_DVC_VAR *adv_dvc_varp, uchar code) */ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) { - asc_board_t *boardp; + struct asc_board *boardp; adv_req_t *reqp; adv_sgblk_t *sgblkp; struct scsi_cmnd *scp; @@ -8420,7 +8394,7 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) ASC_STATS(shost, callback); ASC_DBG1(1, "adv_isr_callback: shost 0x%lx\n", (ulong)shost); - boardp = ASC_BOARDP(shost); + boardp = shost_priv(shost); BUG_ON(adv_dvc_varp != &boardp->dvc_var.adv_dvc_var); /* @@ -8825,7 +8799,7 @@ static int AscIsrChipHalted(ASC_DVC_VAR *asc_dvc) uchar cur_dvc_qng; uchar asyn_sdtr; uchar scsi_status; - asc_board_t *boardp; + struct asc_board *boardp; BUG_ON(!asc_dvc->drv_ptr); boardp = asc_dvc->drv_ptr; @@ -9346,7 +9320,7 @@ _AscCopyLramScsiDoneQ(PortAddr iop_base, */ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) { - asc_board_t *boardp; + struct asc_board *boardp; struct scsi_cmnd *scp; struct Scsi_Host *shost; @@ -9371,7 +9345,7 @@ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) ASC_STATS(shost, callback); ASC_DBG1(1, "asc_isr_callback: shost 0x%lx\n", (ulong)shost); - boardp = ASC_BOARDP(shost); + boardp = shost_priv(shost); BUG_ON(asc_dvc_varp != &boardp->dvc_var.asc_dvc_var); /* @@ -9727,7 +9701,7 @@ static int AscISR(ASC_DVC_VAR *asc_dvc) static int advansys_reset(struct scsi_cmnd *scp) { struct Scsi_Host *shost = scp->device->host; - struct asc_board *boardp = ASC_BOARDP(shost); + struct asc_board *boardp = shost_priv(shost); unsigned long flags; int status; int ret = SUCCESS; @@ -9810,11 +9784,10 @@ static int advansys_biosparam(struct scsi_device *sdev, struct block_device *bdev, sector_t capacity, int ip[]) { - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(sdev->host); ASC_DBG(1, "advansys_biosparam: begin\n"); ASC_STATS(sdev->host, biosparam); - boardp = ASC_BOARDP(sdev->host); if (ASC_NARROW_BOARD(boardp)) { if ((boardp->dvc_var.asc_dvc_var.dvc_cntl & ASC_CNTL_BIOS_GT_1GB) && capacity > 0x200000) { @@ -9848,7 +9821,7 @@ static irqreturn_t advansys_interrupt(int irq, void *dev_id) { unsigned long flags; struct Scsi_Host *shost = dev_id; - asc_board_t *boardp = ASC_BOARDP(shost); + struct asc_board *boardp = shost_priv(shost); irqreturn_t result = IRQ_NONE; ASC_DBG1(2, "advansys_interrupt: boardp 0x%p\n", boardp); @@ -10110,7 +10083,7 @@ advansys_wide_slave_configure(struct scsi_device *sdev, ADV_DVC_VAR *adv_dvc) */ static int advansys_slave_configure(struct scsi_device *sdev) { - asc_board_t *boardp = ASC_BOARDP(sdev->host); + struct asc_board *boardp = shost_priv(sdev->host); if (ASC_NARROW_BOARD(boardp)) advansys_narrow_slave_configure(sdev, @@ -10122,7 +10095,7 @@ static int advansys_slave_configure(struct scsi_device *sdev) return 0; } -static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, +static int asc_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, struct asc_scsi_q *asc_scsi_q) { memset(asc_scsi_q, 0, sizeof(*asc_scsi_q)); @@ -10257,7 +10230,7 @@ static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, * ADV_ERROR(-1) - SG List creation failed */ static int -adv_get_sglist(asc_board_t *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, +adv_get_sglist(struct asc_board *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, int use_sg) { adv_sgblk_t *sgblkp; @@ -10367,7 +10340,7 @@ adv_get_sglist(asc_board_t *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, * to little-endian order. */ static int -adv_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, +adv_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, ADV_SCSI_REQ_Q **adv_scsiqpp) { adv_req_t *reqp; @@ -11255,7 +11228,7 @@ static int AdvExeScsiQueue(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq) static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) { int ret, err_code; - asc_board_t *boardp = ASC_BOARDP(scp->device->host); + struct asc_board *boardp = shost_priv(scp->device->host); ASC_DBG1(1, "asc_execute_scsi_cmnd: scp 0x%p\n", scp); @@ -11346,7 +11319,7 @@ static int advansys_queuecommand(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd *)) { struct Scsi_Host *shost = scp->device->host; - asc_board_t *boardp = ASC_BOARDP(shost); + struct asc_board *boardp = shost_priv(shost); unsigned long flags; int asc_res, result = 0; @@ -12094,7 +12067,7 @@ static ushort __devinit AscInitFromEEP(ASC_DVC_VAR *asc_dvc) return (warn_code); } -static int __devinit AscInitGetConfig(asc_board_t *boardp) +static int __devinit AscInitGetConfig(struct asc_board *boardp) { ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; unsigned short warn_code = 0; @@ -12151,7 +12124,7 @@ static int __devinit AscInitGetConfig(asc_board_t *boardp) return asc_dvc->err_code; } -static int __devinit AscInitSetConfig(struct pci_dev *pdev, asc_board_t *boardp) +static int __devinit AscInitSetConfig(struct pci_dev *pdev, struct asc_board *boardp) { ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; PortAddr iop_base = asc_dvc->iop_base; @@ -13548,7 +13521,7 @@ static int __devinit AdvInitFrom38C1600EEP(ADV_DVC_VAR *asc_dvc) * then 0 is returned. */ static int __devinit -AdvInitGetConfig(struct pci_dev *pdev, asc_board_t *boardp) +AdvInitGetConfig(struct pci_dev *pdev, struct asc_board *boardp) { ADV_DVC_VAR *asc_dvc = &boardp->dvc_var.adv_dvc_var; unsigned short warn_code = 0; @@ -13660,7 +13633,7 @@ static struct scsi_host_template advansys_template = { }; static int __devinit -advansys_wide_init_chip(asc_board_t *boardp, ADV_DVC_VAR *adv_dvc_varp) +advansys_wide_init_chip(struct asc_board *boardp, ADV_DVC_VAR *adv_dvc_varp) { int req_cnt = 0; adv_req_t *reqp = NULL; @@ -13764,7 +13737,7 @@ advansys_wide_init_chip(asc_board_t *boardp, ADV_DVC_VAR *adv_dvc_varp) return err_code; } -static void advansys_wide_free_mem(asc_board_t *boardp) +static void advansys_wide_free_mem(struct asc_board *boardp) { kfree(boardp->carrp); boardp->carrp = NULL; @@ -13781,12 +13754,11 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, unsigned int iop, int bus_type) { struct pci_dev *pdev; - asc_board_t *boardp; + struct asc_board *boardp = shost_priv(shost); ASC_DVC_VAR *asc_dvc_varp = NULL; ADV_DVC_VAR *adv_dvc_varp = NULL; int share_irq, warn_code, ret; - boardp = ASC_BOARDP(shost); boardp->id = asc_board_count++; spin_lock_init(&boardp->lock); pdev = (bus_type == ASC_IS_PCI) ? to_pci_dev(boardp->dev) : NULL; @@ -14282,11 +14254,9 @@ static int __devinit advansys_board_found(struct Scsi_Host *shost, */ static int advansys_release(struct Scsi_Host *shost) { - asc_board_t *boardp; - + struct asc_board *boardp = shost_priv(shost); ASC_DBG(1, "advansys_release: begin\n"); scsi_remove_host(shost); - boardp = ASC_BOARDP(shost); free_irq(boardp->irq, shost); if (shost->dma_channel != NO_ISA_DMA) { ASC_DBG(1, "advansys_release: free_dma()\n"); @@ -14348,7 +14318,7 @@ static int __devinit advansys_isa_probe(struct device *dev, unsigned int id) if (!shost) goto release_region; - board = ASC_BOARDP(shost); + board = shost_priv(shost); board->irq = advansys_isa_irq_no(iop_base); board->dev = dev; @@ -14431,7 +14401,7 @@ static int __devinit advansys_vlb_probe(struct device *dev, unsigned int id) if (!shost) goto release_region; - board = ASC_BOARDP(shost); + board = shost_priv(shost); board->irq = advansys_vlb_irq_no(iop_base); board->dev = dev; @@ -14538,7 +14508,7 @@ static int __devinit advansys_eisa_probe(struct device *dev) if (!shost) goto release_region; - board = ASC_BOARDP(shost); + board = shost_priv(shost); board->irq = irq; board->dev = dev; @@ -14654,7 +14624,7 @@ advansys_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (!shost) goto release_region; - board = ASC_BOARDP(shost); + board = shost_priv(shost); board->irq = pdev->irq; board->dev = &pdev->dev; -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 17/22] advansys: Remove array of scsi targets 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox ` (15 preceding siblings ...) 2007-09-09 14:56 ` [PATCH 16/22] advansys: Eliminate prototypes Matthew Wilcox @ 2007-09-09 14:56 ` Matthew Wilcox 2007-09-09 14:56 ` [PATCH 18/22] advansys: Restructure asc_execute_scsi_cmnd() Matthew Wilcox ` (5 subsequent siblings) 22 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 14:56 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox The driver was saving a scsi_device for each target, but wasn't doing anything useful with them. Just delete the array. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 10 ---------- 1 files changed, 0 insertions(+), 10 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 01c8571..f1f2bfe 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -2514,7 +2514,6 @@ typedef struct asc_board { } dvc_cfg; ushort asc_n_io_port; /* Number I/O ports. */ ADV_SCSI_BIT_ID_TYPE init_tidmask; /* Target init./valid mask */ - struct scsi_device *device[ADV_MAX_TID + 1]; /* Mid-Level Scsi Device */ ushort reqcnt[ADV_MAX_TID + 1]; /* Starvation request count */ ADV_SCSI_BIT_ID_TYPE queue_full; /* Queue full mask */ ushort queue_full_cnt[ADV_MAX_TID + 1]; /* Queue full count */ @@ -10183,13 +10182,6 @@ static int advansys_slave_configure(struct scsi_device *sdev) asc_board_t *boardp = ASC_BOARDP(sdev->host); boardp->flags |= ASC_SELECT_QUEUE_DEPTHS; - /* - * Save a pointer to the sdev and set its initial/maximum - * queue depth. Only save the pointer for a lun0 dev though. - */ - if (sdev->lun == 0) - boardp->device[sdev->id] = sdev; - if (ASC_NARROW_BOARD(boardp)) advansys_narrow_slave_configure(sdev, &boardp->dvc_var.asc_dvc_var); @@ -11343,14 +11335,12 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) ASC_DVC_VAR *asc_dvc_varp; ADV_DVC_VAR *adv_dvc_varp; ADV_SCSI_REQ_Q *adv_scsiqp; - struct scsi_device *device; int ret; ASC_DBG2(1, "asc_execute_scsi_cmnd: scp 0x%lx, done 0x%lx\n", (ulong)scp, (ulong)scp->scsi_done); boardp = ASC_BOARDP(scp->device->host); - device = boardp->device[scp->device->id]; if (ASC_NARROW_BOARD(boardp)) { /* -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 18/22] advansys: Restructure asc_execute_scsi_cmnd() 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox ` (16 preceding siblings ...) 2007-09-09 14:56 ` [PATCH 17/22] advansys: Remove array of scsi targets Matthew Wilcox @ 2007-09-09 14:56 ` Matthew Wilcox 2007-09-09 14:56 ` [PATCH 19/22] advansys: Fix simultaneous calls to ->queuecommand Matthew Wilcox ` (4 subsequent siblings) 22 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 14:56 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox The wide and narrow boards share identical handling of the return value, except for some trivial error messages. Move the handling to the common end of the function. Also move variable declarations to the arms of the `if' that they're used in and delete some pointless comments. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 131 ++++++++++++++--------------------------------- 1 files changed, 39 insertions(+), 92 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index f1f2bfe..36c557f 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -11331,80 +11331,26 @@ static int AdvExeScsiQueue(ADV_DVC_VAR *asc_dvc, ADV_SCSI_REQ_Q *scsiq) */ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) { - asc_board_t *boardp; - ASC_DVC_VAR *asc_dvc_varp; - ADV_DVC_VAR *adv_dvc_varp; - ADV_SCSI_REQ_Q *adv_scsiqp; - int ret; + int ret, err_code; + asc_board_t *boardp = ASC_BOARDP(scp->device->host); - ASC_DBG2(1, "asc_execute_scsi_cmnd: scp 0x%lx, done 0x%lx\n", - (ulong)scp, (ulong)scp->scsi_done); - - boardp = ASC_BOARDP(scp->device->host); + ASC_DBG1(1, "asc_execute_scsi_cmnd: scp 0x%p\n", scp); if (ASC_NARROW_BOARD(boardp)) { - /* - * Build and execute Narrow Board request. - */ - - asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; + ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; - /* - * Build Asc Library request structure using the - * global structures 'asc_scsi_req' and 'asc_sg_head'. - * - * If an error is returned, then the request has been - * queued on the board done queue. It will be completed - * by the caller. - * - * asc_build_req() can not return ASC_BUSY. - */ + /* asc_build_req() can not return ASC_BUSY. */ if (asc_build_req(boardp, scp) == ASC_ERROR) { ASC_STATS(scp->device->host, build_error); return ASC_ERROR; } - switch (ret = AscExeScsiQueue(asc_dvc_varp, &asc_scsi_q)) { - case ASC_NOERROR: - ASC_STATS(scp->device->host, exe_noerror); - /* - * Increment monotonically increasing per device - * successful request counter. Wrapping doesn't matter. - */ - boardp->reqcnt[scp->device->id]++; - ASC_DBG(1, "asc_execute_scsi_cmnd: AscExeScsiQueue(), " - "ASC_NOERROR\n"); - break; - case ASC_BUSY: - ASC_STATS(scp->device->host, exe_busy); - break; - case ASC_ERROR: - ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " - "AscExeScsiQueue() ASC_ERROR, err_code 0x%x\n", - boardp->id, asc_dvc_varp->err_code); - ASC_STATS(scp->device->host, exe_error); - scp->result = HOST_BYTE(DID_ERROR); - break; - default: - ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " - "AscExeScsiQueue() unknown, err_code 0x%x\n", - boardp->id, asc_dvc_varp->err_code); - ASC_STATS(scp->device->host, exe_unknown); - scp->result = HOST_BYTE(DID_ERROR); - break; - } + ret = AscExeScsiQueue(asc_dvc, &asc_scsi_q); + err_code = asc_dvc->err_code; } else { - /* - * Build and execute Wide Board request. - */ - adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; + ADV_DVC_VAR *adv_dvc = &boardp->dvc_var.adv_dvc_var; + ADV_SCSI_REQ_Q *adv_scsiqp; - /* - * Build and get a pointer to an Adv Library request structure. - * - * If the request is successfully built then send it below, - * otherwise return with an error. - */ switch (adv_build_req(boardp, scp, &adv_scsiqp)) { case ASC_NOERROR: ASC_DBG(3, "asc_execute_scsi_cmnd: adv_build_req " @@ -11428,35 +11374,36 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) return ASC_ERROR; } - switch (ret = AdvExeScsiQueue(adv_dvc_varp, adv_scsiqp)) { - case ASC_NOERROR: - ASC_STATS(scp->device->host, exe_noerror); - /* - * Increment monotonically increasing per device - * successful request counter. Wrapping doesn't matter. - */ - boardp->reqcnt[scp->device->id]++; - ASC_DBG(1, "asc_execute_scsi_cmnd: AdvExeScsiQueue(), " - "ASC_NOERROR\n"); - break; - case ASC_BUSY: - ASC_STATS(scp->device->host, exe_busy); - break; - case ASC_ERROR: - ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " - "AdvExeScsiQueue() ASC_ERROR, err_code 0x%x\n", - boardp->id, adv_dvc_varp->err_code); - ASC_STATS(scp->device->host, exe_error); - scp->result = HOST_BYTE(DID_ERROR); - break; - default: - ASC_PRINT2("asc_execute_scsi_cmnd: board %d: " - "AdvExeScsiQueue() unknown, err_code 0x%x\n", - boardp->id, adv_dvc_varp->err_code); - ASC_STATS(scp->device->host, exe_unknown); - scp->result = HOST_BYTE(DID_ERROR); - break; - } + ret = AdvExeScsiQueue(adv_dvc, adv_scsiqp); + err_code = adv_dvc->err_code; + } + + switch (ret) { + case ASC_NOERROR: + ASC_STATS(scp->device->host, exe_noerror); + /* + * Increment monotonically increasing per device + * successful request counter. Wrapping doesn't matter. + */ + boardp->reqcnt[scp->device->id]++; + ASC_DBG(1, "asc_execute_scsi_cmnd: ExeScsiQueue(), " + "ASC_NOERROR\n"); + break; + case ASC_BUSY: + ASC_STATS(scp->device->host, exe_busy); + break; + case ASC_ERROR: + ASC_PRINT2("asc_execute_scsi_cmnd: board %d: ExeScsiQueue() " + "ASC_ERROR, err_code 0x%x\n", boardp->id, err_code); + ASC_STATS(scp->device->host, exe_error); + scp->result = HOST_BYTE(DID_ERROR); + break; + default: + ASC_PRINT2("asc_execute_scsi_cmnd: board %d: ExeScsiQueue() " + "unknown, err_code 0x%x\n", boardp->id, err_code); + ASC_STATS(scp->device->host, exe_unknown); + scp->result = HOST_BYTE(DID_ERROR); + break; } ASC_DBG(1, "asc_execute_scsi_cmnd: end\n"); -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 19/22] advansys: Fix simultaneous calls to ->queuecommand 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox ` (17 preceding siblings ...) 2007-09-09 14:56 ` [PATCH 18/22] advansys: Restructure asc_execute_scsi_cmnd() Matthew Wilcox @ 2007-09-09 14:56 ` Matthew Wilcox 2007-09-09 14:56 ` [PATCH 20/22] advansys: Improve reset handler Matthew Wilcox ` (3 subsequent siblings) 22 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 14:56 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox The narrow board used two global structures to set up a command; unfortunately they weren't locked, so with two boards in the machine, one call to queuecommand could corrupt the data being used by the other call to queuecommand. Fix this by allocating asc_scsi_q on the stack (64 bytes) and using kmalloc for the asc_sg_head (2k) Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 88 +++++++++++++++++++++-------------------------- 1 files changed, 39 insertions(+), 49 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 36c557f..3fbeea7 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -380,7 +380,7 @@ typedef struct asc_sg_head { ushort queue_cnt; ushort entry_to_copy; ushort res; - ASC_SG_LIST sg_list[ASC_MAX_SG_LIST]; + ASC_SG_LIST sg_list[0]; } ASC_SG_HEAD; typedef struct asc_scsi_q { @@ -2559,12 +2559,6 @@ static int asc_board_count; /* Overrun buffer used by all narrow boards. */ static uchar overrun_buf[ASC_OVERRUN_BSIZE] = { 0 }; -/* - * Global structures required to issue a command. - */ -static ASC_SCSI_Q asc_scsi_q = { {0} }; -static ASC_SG_HEAD asc_sg_head = { 0 }; - #ifdef ADVANSYS_DEBUG static int asc_dbglvl = 3; @@ -10192,39 +10186,28 @@ static int advansys_slave_configure(struct scsi_device *sdev) return 0; } -/* - * Build a request structure for the Asc Library (Narrow Board). - * - * The global structures 'asc_scsi_q' and 'asc_sg_head' are - * used to build the request. - * - * If an error occurs, then return ASC_ERROR. - */ -static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp) +static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, + struct asc_scsi_q *asc_scsi_q) { - /* - * Mutually exclusive access is required to 'asc_scsi_q' and - * 'asc_sg_head' until after the request is started. - */ - memset(&asc_scsi_q, 0, sizeof(ASC_SCSI_Q)); + memset(asc_scsi_q, 0, sizeof(*asc_scsi_q)); /* * Point the ASC_SCSI_Q to the 'struct scsi_cmnd'. */ - asc_scsi_q.q2.srb_ptr = ASC_VADDR_TO_U32(scp); + asc_scsi_q->q2.srb_ptr = ASC_VADDR_TO_U32(scp); /* * Build the ASC_SCSI_Q request. */ - asc_scsi_q.cdbptr = &scp->cmnd[0]; - asc_scsi_q.q2.cdb_len = scp->cmd_len; - asc_scsi_q.q1.target_id = ASC_TID_TO_TARGET_ID(scp->device->id); - asc_scsi_q.q1.target_lun = scp->device->lun; - asc_scsi_q.q2.target_ix = + asc_scsi_q->cdbptr = &scp->cmnd[0]; + asc_scsi_q->q2.cdb_len = scp->cmd_len; + asc_scsi_q->q1.target_id = ASC_TID_TO_TARGET_ID(scp->device->id); + asc_scsi_q->q1.target_lun = scp->device->lun; + asc_scsi_q->q2.target_ix = ASC_TIDLUN_TO_IX(scp->device->id, scp->device->lun); - asc_scsi_q.q1.sense_addr = + asc_scsi_q->q1.sense_addr = cpu_to_le32(virt_to_bus(&scp->sense_buffer[0])); - asc_scsi_q.q1.sense_len = sizeof(scp->sense_buffer); + asc_scsi_q->q1.sense_len = sizeof(scp->sense_buffer); /* * If there are any outstanding requests for the current target, @@ -10239,9 +10222,9 @@ static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp) */ if ((boardp->dvc_var.asc_dvc_var.cur_dvc_qng[scp->device->id] > 0) && (boardp->reqcnt[scp->device->id] % 255) == 0) { - asc_scsi_q.q2.tag_code = MSG_ORDERED_TAG; + asc_scsi_q->q2.tag_code = MSG_ORDERED_TAG; } else { - asc_scsi_q.q2.tag_code = MSG_SIMPLE_TAG; + asc_scsi_q->q2.tag_code = MSG_SIMPLE_TAG; } /* @@ -10257,12 +10240,12 @@ static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp) dma_map_single(boardp->dev, scp->request_buffer, scp->request_bufflen, scp->sc_data_direction) : 0; - asc_scsi_q.q1.data_addr = cpu_to_le32(scp->SCp.dma_handle); - asc_scsi_q.q1.data_cnt = cpu_to_le32(scp->request_bufflen); + asc_scsi_q->q1.data_addr = cpu_to_le32(scp->SCp.dma_handle); + asc_scsi_q->q1.data_cnt = cpu_to_le32(scp->request_bufflen); ASC_STATS_ADD(scp->device->host, cont_xfer, ASC_CEILING(scp->request_bufflen, 512)); - asc_scsi_q.q1.sg_queue_cnt = 0; - asc_scsi_q.sg_head = NULL; + asc_scsi_q->q1.sg_queue_cnt = 0; + asc_scsi_q->sg_head = NULL; } else { /* * CDB scatter-gather request list. @@ -10270,6 +10253,7 @@ static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp) int sgcnt; int use_sg; struct scatterlist *slp; + struct asc_sg_head *asc_sg_head; slp = (struct scatterlist *)scp->request_buffer; use_sg = dma_map_sg(boardp->dev, slp, scp->use_sg, @@ -10287,28 +10271,31 @@ static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp) ASC_STATS(scp->device->host, sg_cnt); - /* - * Use global ASC_SG_HEAD structure and set the ASC_SCSI_Q - * structure to point to it. - */ - memset(&asc_sg_head, 0, sizeof(ASC_SG_HEAD)); + asc_sg_head = kzalloc(sizeof(asc_scsi_q->sg_head) + + use_sg * sizeof(struct asc_sg_list), GFP_ATOMIC); + if (!asc_sg_head) { + dma_unmap_sg(boardp->dev, slp, scp->use_sg, + scp->sc_data_direction); + scp->result = HOST_BYTE(DID_SOFT_ERROR); + return ASC_ERROR; + } - asc_scsi_q.q1.cntl |= QC_SG_HEAD; - asc_scsi_q.sg_head = &asc_sg_head; - asc_scsi_q.q1.data_cnt = 0; - asc_scsi_q.q1.data_addr = 0; + asc_scsi_q->q1.cntl |= QC_SG_HEAD; + asc_scsi_q->sg_head = asc_sg_head; + asc_scsi_q->q1.data_cnt = 0; + asc_scsi_q->q1.data_addr = 0; /* This is a byte value, otherwise it would need to be swapped. */ - asc_sg_head.entry_cnt = asc_scsi_q.q1.sg_queue_cnt = use_sg; + asc_sg_head->entry_cnt = asc_scsi_q->q1.sg_queue_cnt = use_sg; ASC_STATS_ADD(scp->device->host, sg_elem, - asc_sg_head.entry_cnt); + asc_sg_head->entry_cnt); /* * Convert scatter-gather list into ASC_SG_HEAD list. */ for (sgcnt = 0; sgcnt < use_sg; sgcnt++, slp++) { - asc_sg_head.sg_list[sgcnt].addr = + asc_sg_head->sg_list[sgcnt].addr = cpu_to_le32(sg_dma_address(slp)); - asc_sg_head.sg_list[sgcnt].bytes = + asc_sg_head->sg_list[sgcnt].bytes = cpu_to_le32(sg_dma_len(slp)); ASC_STATS_ADD(scp->device->host, sg_xfer, ASC_CEILING(sg_dma_len(slp), 512)); @@ -11338,14 +11325,17 @@ static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) if (ASC_NARROW_BOARD(boardp)) { ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; + struct asc_scsi_q asc_scsi_q; /* asc_build_req() can not return ASC_BUSY. */ - if (asc_build_req(boardp, scp) == ASC_ERROR) { + ret = asc_build_req(boardp, scp, &asc_scsi_q); + if (ret == ASC_ERROR) { ASC_STATS(scp->device->host, build_error); return ASC_ERROR; } ret = AscExeScsiQueue(asc_dvc, &asc_scsi_q); + kfree(asc_scsi_q.sg_head); err_code = asc_dvc->err_code; } else { ADV_DVC_VAR *adv_dvc = &boardp->dvc_var.adv_dvc_var; -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 20/22] advansys: Improve reset handler 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox ` (18 preceding siblings ...) 2007-09-09 14:56 ` [PATCH 19/22] advansys: Fix simultaneous calls to ->queuecommand Matthew Wilcox @ 2007-09-09 14:56 ` Matthew Wilcox 2007-09-09 14:56 ` [PATCH 21/22] advansys: Remove ASC_SELECT_QUEUE_DEPTHS Matthew Wilcox ` (2 subsequent siblings) 22 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 14:56 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox - Don't need to set ASC_HOST_IN_RESET any more - Don't need to test scp->device->host for NULL -- if it's NULL, we couldn't've been called. - Use scmd_printk instead of ASC_PRINT Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 83 ++++++++++++---------------------------------- 1 files changed, 22 insertions(+), 61 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 3fbeea7..76dfb0c 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -2229,7 +2229,6 @@ do { \ #define ASC_BOARDP(host) ((asc_board_t *) &((host)->hostdata)) /* asc_board_t flags */ -#define ASC_HOST_IN_RESET 0x01 #define ASC_IS_WIDE_BOARD 0x04 /* AdvanSys Wide Board */ #define ASC_SELECT_QUEUE_DEPTHS 0x08 @@ -9751,106 +9750,68 @@ static int AscISR(ASC_DVC_VAR *asc_dvc) */ static int advansys_reset(struct scsi_cmnd *scp) { - struct Scsi_Host *shost; - asc_board_t *boardp; - ASC_DVC_VAR *asc_dvc_varp; - ADV_DVC_VAR *adv_dvc_varp; - ulong flags; + struct Scsi_Host *shost = scp->device->host; + struct asc_board *boardp = ASC_BOARDP(shost); + unsigned long flags; int status; int ret = SUCCESS; - ASC_DBG1(1, "advansys_reset: 0x%lx\n", (ulong)scp); + ASC_DBG1(1, "advansys_reset: 0x%p\n", scp); -#ifdef ADVANSYS_STATS - if (scp->device->host != NULL) { - ASC_STATS(scp->device->host, reset); - } -#endif /* ADVANSYS_STATS */ - - if ((shost = scp->device->host) == NULL) { - scp->result = HOST_BYTE(DID_ERROR); - return FAILED; - } + ASC_STATS(shost, reset); - boardp = ASC_BOARDP(shost); - - ASC_PRINT1("advansys_reset: board %d: SCSI bus reset started...\n", - boardp->id); - /* - * Check for re-entrancy. - */ - spin_lock_irqsave(&boardp->lock, flags); - if (boardp->flags & ASC_HOST_IN_RESET) { - spin_unlock_irqrestore(&boardp->lock, flags); - return FAILED; - } - boardp->flags |= ASC_HOST_IN_RESET; - spin_unlock_irqrestore(&boardp->lock, flags); + scmd_printk(KERN_INFO, scp, "SCSI bus reset started...\n"); if (ASC_NARROW_BOARD(boardp)) { - /* - * Narrow Board - */ - asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; + ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; - /* - * Reset the chip and SCSI bus. - */ + /* Reset the chip and SCSI bus. */ ASC_DBG(1, "advansys_reset: before AscInitAsc1000Driver()\n"); - status = AscInitAsc1000Driver(asc_dvc_varp); + status = AscInitAsc1000Driver(asc_dvc); /* Refer to ASC_IERR_* defintions for meaning of 'err_code'. */ - if (asc_dvc_varp->err_code) { - ASC_PRINT2("advansys_reset: board %d: SCSI bus reset " - "error: 0x%x\n", boardp->id, - asc_dvc_varp->err_code); + if (asc_dvc->err_code) { + scmd_printk(KERN_INFO, scp, "SCSI bus reset error: " + "0x%x\n", asc_dvc->err_code); ret = FAILED; } else if (status) { - ASC_PRINT2("advansys_reset: board %d: SCSI bus reset " - "warning: 0x%x\n", boardp->id, status); + scmd_printk(KERN_INFO, scp, "SCSI bus reset warning: " + "0x%x\n", status); } else { - ASC_PRINT1("advansys_reset: board %d: SCSI bus reset " - "successful.\n", boardp->id); + scmd_printk(KERN_INFO, scp, "SCSI bus reset " + "successful\n"); } ASC_DBG(1, "advansys_reset: after AscInitAsc1000Driver()\n"); spin_lock_irqsave(&boardp->lock, flags); - } else { /* - * Wide Board - * * If the suggest reset bus flags are set, then reset the bus. * Otherwise only reset the device. */ - adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; + ADV_DVC_VAR *adv_dvc = &boardp->dvc_var.adv_dvc_var; /* * Reset the target's SCSI bus. */ ASC_DBG(1, "advansys_reset: before AdvResetChipAndSB()\n"); - switch (AdvResetChipAndSB(adv_dvc_varp)) { + switch (AdvResetChipAndSB(adv_dvc)) { case ASC_TRUE: - ASC_PRINT1("advansys_reset: board %d: SCSI bus reset " - "successful.\n", boardp->id); + scmd_printk(KERN_INFO, scp, "SCSI bus reset " + "successful\n"); break; case ASC_FALSE: default: - ASC_PRINT1("advansys_reset: board %d: SCSI bus reset " - "error.\n", boardp->id); + scmd_printk(KERN_INFO, scp, "SCSI bus reset error\n"); ret = FAILED; break; } spin_lock_irqsave(&boardp->lock, flags); - AdvISR(adv_dvc_varp); + AdvISR(adv_dvc); } - /* Board lock is held. */ /* Save the time of the most recently completed reset. */ boardp->last_reset = jiffies; - - /* Clear reset flag. */ - boardp->flags &= ~ASC_HOST_IN_RESET; spin_unlock_irqrestore(&boardp->lock, flags); ASC_DBG1(1, "advansys_reset: ret %d\n", ret); -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 21/22] advansys: Remove ASC_SELECT_QUEUE_DEPTHS 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox ` (19 preceding siblings ...) 2007-09-09 14:56 ` [PATCH 20/22] advansys: Improve reset handler Matthew Wilcox @ 2007-09-09 14:56 ` Matthew Wilcox 2007-09-09 14:56 ` [PATCH 22/22] advansys: Remove ASC_WIDE_BOARD predicate Matthew Wilcox 2007-09-10 20:00 ` [0/22] Advansys updates 2007-09-09 FUJITA Tomonori 22 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 14:56 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox It was only ever set; never tested, nor cleared. Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 2 -- 1 files changed, 0 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 76dfb0c..13fb23c 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -2230,7 +2230,6 @@ do { \ /* asc_board_t flags */ #define ASC_IS_WIDE_BOARD 0x04 /* AdvanSys Wide Board */ -#define ASC_SELECT_QUEUE_DEPTHS 0x08 #define ASC_NARROW_BOARD(boardp) (((boardp)->flags & ASC_IS_WIDE_BOARD) == 0) #define ASC_WIDE_BOARD(boardp) ((boardp)->flags & ASC_IS_WIDE_BOARD) @@ -10135,7 +10134,6 @@ advansys_wide_slave_configure(struct scsi_device *sdev, ADV_DVC_VAR *adv_dvc) static int advansys_slave_configure(struct scsi_device *sdev) { asc_board_t *boardp = ASC_BOARDP(sdev->host); - boardp->flags |= ASC_SELECT_QUEUE_DEPTHS; if (ASC_NARROW_BOARD(boardp)) advansys_narrow_slave_configure(sdev, -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* [PATCH 22/22] advansys: Remove ASC_WIDE_BOARD predicate 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox ` (20 preceding siblings ...) 2007-09-09 14:56 ` [PATCH 21/22] advansys: Remove ASC_SELECT_QUEUE_DEPTHS Matthew Wilcox @ 2007-09-09 14:56 ` Matthew Wilcox 2007-09-10 20:00 ` [0/22] Advansys updates 2007-09-09 FUJITA Tomonori 22 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-09 14:56 UTC (permalink / raw) To: linux-scsi; +Cc: Matthew Wilcox Replace it with !ASC_NARROW_BOARD Signed-off-by: Matthew Wilcox <matthew@wil.cx> --- drivers/scsi/advansys.c | 5 ++--- 1 files changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 13fb23c..abad6d1 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -2232,7 +2232,6 @@ do { \ #define ASC_IS_WIDE_BOARD 0x04 /* AdvanSys Wide Board */ #define ASC_NARROW_BOARD(boardp) (((boardp)->flags & ASC_IS_WIDE_BOARD) == 0) -#define ASC_WIDE_BOARD(boardp) ((boardp)->flags & ASC_IS_WIDE_BOARD) #define NO_ISA_DMA 0xff /* No ISA DMA Channel Used */ @@ -4385,7 +4384,7 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, /* * Display Wide Board BIOS Information. */ - if (ASC_WIDE_BOARD(boardp)) { + if (!ASC_NARROW_BOARD(boardp)) { cp = boardp->prtbuf; cplen = asc_prt_adv_bios(shost, cp, ASC_PRTBUF_SIZE); BUG_ON(cplen >= ASC_PRTBUF_SIZE); @@ -14436,7 +14435,7 @@ static int advansys_release(struct Scsi_Host *shost) ASC_DBG(1, "advansys_release: free_dma()\n"); free_dma(shost->dma_channel); } - if (ASC_WIDE_BOARD(boardp)) { + if (!ASC_NARROW_BOARD(boardp)) { iounmap(boardp->ioremap_addr); advansys_wide_free_mem(boardp); } -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* Re: [0/22] Advansys updates 2007-09-09 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox ` (21 preceding siblings ...) 2007-09-09 14:56 ` [PATCH 22/22] advansys: Remove ASC_WIDE_BOARD predicate Matthew Wilcox @ 2007-09-10 20:00 ` FUJITA Tomonori 2007-09-11 18:18 ` Matthew Wilcox 22 siblings, 1 reply; 52+ messages in thread From: FUJITA Tomonori @ 2007-09-10 20:00 UTC (permalink / raw) To: matthew, jens.axboe; +Cc: linux-scsi, fujita.tomonori On Sun, 9 Sep 2007 08:53:58 -0600 Matthew Wilcox <matthew@wil.cx> wrote: > Here's another mammoth patch series for the advansys driver against > scsi-misc. I've tested that it compiles at each stage and that the > final result works. > > Some important parts to note: > > 1/22 Essential bugfix. Please apply ASAP. > 4/22 Reformat microcode. Boring and large. > 6,7,8,9/22 Remove internal queueing from driver > 11/22 Allow advansys to accept 16-byte commands for wide boards > 13/22 Remove some custom wrappers > 15/22 Add DRV_NAME > 16/22 Eliminate prototypes. Boring and large. > 19/22 Fix simultaneous calls to ->queuecommand This is on the top of the patchset. Can I get your ACK on it? This depends on scsi-misc, the patchset, and sg chaining stuff. -- From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Subject: [PATCH] advansys: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. - add sg chaining support Jens Axboe <jens.axboe@oracle.com> added sg chaining support. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> --- drivers/scsi/advansys.c | 93 +++++++++++++++-------------------------------- 1 files changed, 29 insertions(+), 64 deletions(-) diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index abad6d1..62b58a7 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -4499,15 +4499,7 @@ advansys_proc_info(struct Scsi_Host *shost, char *buffer, char **start, static void asc_scsi_done(struct scsi_cmnd *scp) { - struct asc_board *boardp = ASC_BOARDP(scp->device->host); - - if (scp->use_sg) - dma_unmap_sg(boardp->dev, - (struct scatterlist *)scp->request_buffer, - scp->use_sg, scp->sc_data_direction); - else if (scp->request_bufflen) - dma_unmap_single(boardp->dev, scp->SCp.dma_handle, - scp->request_bufflen, scp->sc_data_direction); + scsi_dma_unmap(scp); ASC_STATS(scp->device->host, done); @@ -8460,12 +8452,12 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) * then return the number of underrun bytes. */ resid_cnt = le32_to_cpu(scsiqp->data_cnt); - if (scp->request_bufflen != 0 && resid_cnt != 0 && - resid_cnt <= scp->request_bufflen) { + if (scsi_bufflen(scp) != 0 && resid_cnt != 0 && + resid_cnt <= scsi_bufflen(scp)) { ASC_DBG1(1, "adv_isr_callback: underrun condition %lu bytes\n", (ulong)resid_cnt); - scp->resid = resid_cnt; + scsi_set_resid(scp, resid_cnt); } break; @@ -9410,12 +9402,12 @@ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) * If there was no error and an underrun condition, then * return the number of underrun bytes. */ - if (scp->request_bufflen != 0 && qdonep->remain_bytes != 0 && - qdonep->remain_bytes <= scp->request_bufflen) { + if (scsi_bufflen(scp) != 0 && qdonep->remain_bytes != 0 && + qdonep->remain_bytes <= scsi_bufflen(scp)) { ASC_DBG1(1, "asc_isr_callback: underrun condition %u bytes\n", (unsigned)qdonep->remain_bytes); - scp->resid = qdonep->remain_bytes; + scsi_set_resid(scp, qdonep->remain_bytes); } break; @@ -10147,6 +10139,8 @@ static int advansys_slave_configure(struct scsi_device *sdev) static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, struct asc_scsi_q *asc_scsi_q) { + int use_sg; + memset(asc_scsi_q, 0, sizeof(*asc_scsi_q)); /* @@ -10189,40 +10183,27 @@ static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, * Build ASC_SCSI_Q for a contiguous buffer or a scatter-gather * buffer command. */ - if (scp->use_sg == 0) { + use_sg = scsi_dma_map(scp); + if (use_sg == 0) { /* * CDB request of single contiguous buffer. */ ASC_STATS(scp->device->host, cont_cnt); - scp->SCp.dma_handle = scp->request_bufflen ? - dma_map_single(boardp->dev, scp->request_buffer, - scp->request_bufflen, - scp->sc_data_direction) : 0; - asc_scsi_q->q1.data_addr = cpu_to_le32(scp->SCp.dma_handle); - asc_scsi_q->q1.data_cnt = cpu_to_le32(scp->request_bufflen); - ASC_STATS_ADD(scp->device->host, cont_xfer, - ASC_CEILING(scp->request_bufflen, 512)); - asc_scsi_q->q1.sg_queue_cnt = 0; - asc_scsi_q->sg_head = NULL; + scp->SCp.dma_handle = 0; + ASC_STATS_ADD(scp->device->host, cont_xfer, 0); } else { /* * CDB scatter-gather request list. */ int sgcnt; - int use_sg; struct scatterlist *slp; struct asc_sg_head *asc_sg_head; - slp = (struct scatterlist *)scp->request_buffer; - use_sg = dma_map_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); - if (use_sg > scp->device->host->sg_tablesize) { ASC_PRINT3("asc_build_req: board %d: use_sg %d > " "sg_tablesize %d\n", boardp->id, use_sg, scp->device->host->sg_tablesize); - dma_unmap_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); + scsi_dma_unmap(scp); scp->result = HOST_BYTE(DID_ERROR); return ASC_ERROR; } @@ -10232,8 +10213,7 @@ static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, asc_sg_head = kzalloc(sizeof(asc_scsi_q->sg_head) + use_sg * sizeof(struct asc_sg_list), GFP_ATOMIC); if (!asc_sg_head) { - dma_unmap_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); + scsi_dma_unmap(scp); scp->result = HOST_BYTE(DID_SOFT_ERROR); return ASC_ERROR; } @@ -10250,7 +10230,7 @@ static int asc_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, /* * Convert scatter-gather list into ASC_SG_HEAD list. */ - for (sgcnt = 0; sgcnt < use_sg; sgcnt++, slp++) { + scsi_for_each_sg(scp, slp, use_sg, sgcnt) { asc_sg_head->sg_list[sgcnt].addr = cpu_to_le32(sg_dma_address(slp)); asc_sg_head->sg_list[sgcnt].bytes = @@ -10291,7 +10271,7 @@ adv_get_sglist(asc_board_t *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, int i; scsiqp = (ADV_SCSI_REQ_Q *)ADV_32BALIGN(&reqp->scsi_req_q); - slp = (struct scatterlist *)scp->request_buffer; + slp = scsi_sglist(scp); sg_elem_cnt = use_sg; prev_sg_block = NULL; reqp->sgblkp = NULL; @@ -10371,7 +10351,7 @@ adv_get_sglist(asc_board_t *boardp, adv_req_t *reqp, struct scsi_cmnd *scp, sg_block->sg_ptr = 0L; /* Last ADV_SG_BLOCK in list. */ return ADV_SUCCESS; } - slp++; + slp = sg_next(slp); } sg_block->sg_cnt = NO_OF_SG_PER_BLOCK; prev_sg_block = sg_block; @@ -10396,6 +10376,7 @@ adv_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, ADV_SCSI_REQ_Q *scsiqp; int i; int ret; + int use_sg; /* * Allocate an adv_req_t structure from the board to execute @@ -10457,49 +10438,33 @@ adv_build_req(asc_board_t *boardp, struct scsi_cmnd *scp, * buffer command. */ - scsiqp->data_cnt = cpu_to_le32(scp->request_bufflen); - scsiqp->vdata_addr = scp->request_buffer; - scsiqp->data_addr = cpu_to_le32(virt_to_bus(scp->request_buffer)); + scsiqp->data_cnt = cpu_to_le32(scsi_bufflen(scp)); - if (scp->use_sg == 0) { + use_sg = scsi_dma_map(scp); + if (use_sg == 0) { /* * CDB request of single contiguous buffer. */ reqp->sgblkp = NULL; - scsiqp->data_cnt = cpu_to_le32(scp->request_bufflen); - if (scp->request_bufflen) { - scsiqp->vdata_addr = scp->request_buffer; - scp->SCp.dma_handle = - dma_map_single(boardp->dev, scp->request_buffer, - scp->request_bufflen, - scp->sc_data_direction); - } else { - scsiqp->vdata_addr = NULL; - scp->SCp.dma_handle = 0; - } - scsiqp->data_addr = cpu_to_le32(scp->SCp.dma_handle); + scsiqp->data_cnt = 0; + scsiqp->vdata_addr = NULL; + scp->SCp.dma_handle = 0; + + scsiqp->data_addr = 0; scsiqp->sg_list_ptr = NULL; scsiqp->sg_real_addr = 0; ASC_STATS(scp->device->host, cont_cnt); - ASC_STATS_ADD(scp->device->host, cont_xfer, - ASC_CEILING(scp->request_bufflen, 512)); + ASC_STATS_ADD(scp->device->host, cont_xfer, 0); } else { /* * CDB scatter-gather request list. */ - struct scatterlist *slp; - int use_sg; - - slp = (struct scatterlist *)scp->request_buffer; - use_sg = dma_map_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); if (use_sg > ADV_MAX_SG_LIST) { ASC_PRINT3("adv_build_req: board %d: use_sg %d > " "ADV_MAX_SG_LIST %d\n", boardp->id, use_sg, scp->device->host->sg_tablesize); - dma_unmap_sg(boardp->dev, slp, scp->use_sg, - scp->sc_data_direction); + scsi_dma_unmap(scp); scp->result = HOST_BYTE(DID_ERROR); /* -- 1.5.2.4 ^ permalink raw reply related [flat|nested] 52+ messages in thread
* Re: [0/22] Advansys updates 2007-09-09 2007-09-10 20:00 ` [0/22] Advansys updates 2007-09-09 FUJITA Tomonori @ 2007-09-11 18:18 ` Matthew Wilcox 0 siblings, 0 replies; 52+ messages in thread From: Matthew Wilcox @ 2007-09-11 18:18 UTC (permalink / raw) To: FUJITA Tomonori; +Cc: jens.axboe, linux-scsi, fujita.tomonori On Tue, Sep 11, 2007 at 05:00:27AM +0900, FUJITA Tomonori wrote: > On Sun, 9 Sep 2007 08:53:58 -0600 > Matthew Wilcox <matthew@wil.cx> wrote: > > > Here's another mammoth patch series for the advansys driver against > > scsi-misc. I've tested that it compiles at each stage and that the > > final result works. > > This is on the top of the patchset. Can I get your ACK on it? > > This depends on scsi-misc, the patchset, and sg chaining stuff. Phew, that's one of the items on my todo list that I now don't have to do. Thanks! I haven't tested it (I'm away from my machines for this week), but please do submit it with the other sg work you've done. Any bugs can be figured out later. Acked-by: Matthew Wilcox <matthew@wil.cx> -- Intel are signing my paycheques ... these opinions are still mine "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." ^ permalink raw reply [flat|nested] 52+ messages in thread
end of thread, other threads:[~2007-09-17 12:21 UTC | newest] Thread overview: 52+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2007-09-09 14:53 [0/22] Advansys updates 2007-09-09 Matthew Wilcox 2007-09-09 14:56 ` [PATCH 01/22] advansys: Fix VLB driver name Matthew Wilcox 2007-09-09 14:56 ` [PATCH 02/22] advansys: Create AdvBuildCarrierFreelist Matthew Wilcox 2007-09-09 14:56 ` [PATCH 03/22] advansys: Create AdvLoadMicrocode Matthew Wilcox 2007-09-09 14:56 ` [PATCH 04/22] advansys: Reformat microcode Matthew Wilcox 2007-09-09 14:56 ` [PATCH 05/22] advansys: Shrink advansys_board_found a little more Matthew Wilcox 2007-09-09 14:56 ` [PATCH 06/22] advansys: Remove `waiting' queue Matthew Wilcox 2007-09-09 14:56 ` [PATCH 07/22] advansys: Remove a check for an impossible condition Matthew Wilcox 2007-09-09 14:56 ` [PATCH 08/22] advansys: Remove `done' queue Matthew Wilcox 2007-09-09 14:56 ` [PATCH 09/22] advansys: Remove `active' queue and all remaining internal queueing code Matthew Wilcox 2007-09-09 14:56 ` [PATCH 10/22] advansys: Enable interrupts earlier in queuecommand Matthew Wilcox 2007-09-09 14:56 ` [PATCH 11/22] advansys: Support 16-byte commands properly Matthew Wilcox 2007-09-09 14:56 ` [PATCH 12/22] advansys: Remove a check for an impossible condition Matthew Wilcox 2007-09-09 14:56 ` [PATCH 13/22] advansys: Remove some custom wrappers Matthew Wilcox 2007-09-09 14:56 ` [PATCH 14/22] advansys: Comment/indentation/macro cleanup Matthew Wilcox 2007-09-09 14:56 ` [PATCH 15/22] advansys: Use DRV_NAME Matthew Wilcox 2007-09-09 14:56 ` [PATCH 16/22] advansys: Eliminate prototypes Matthew Wilcox 2007-09-09 15:29 ` Jeff Garzik 2007-09-09 17:48 ` Matthew Wilcox 2007-09-15 14:39 ` James Bottomley 2007-09-16 15:31 ` Matthew Wilcox 2007-09-16 22:41 ` FUJITA Tomonori 2007-09-16 23:03 ` Matthew Wilcox 2007-09-16 23:17 ` FUJITA Tomonori 2007-09-17 12:21 ` Matthew Wilcox 2007-09-16 15:37 ` [PATCH 01/17] " Matthew Wilcox 2007-09-16 15:37 ` [PATCH 02/17] advansys: Remove array of scsi targets Matthew Wilcox 2007-09-16 15:37 ` [PATCH 03/17] advansys: Restructure asc_execute_scsi_cmnd() Matthew Wilcox 2007-09-16 15:37 ` [PATCH 04/17] advansys: Fix simultaneous calls to ->queuecommand Matthew Wilcox 2007-09-16 15:37 ` [PATCH 05/17] advansys: Improve reset handler Matthew Wilcox 2007-09-16 15:37 ` [PATCH 06/17] advansys: Remove ASC_SELECT_QUEUE_DEPTHS Matthew Wilcox 2007-09-16 15:37 ` [PATCH 07/17] advansys: Remove ASC_WIDE_BOARD predicate Matthew Wilcox 2007-09-16 15:37 ` [PATCH 08/17] advansys: Sort out irq number mess Matthew Wilcox 2007-09-16 15:37 ` [PATCH 09/17] advansys: Merge ASC_IERR definitions Matthew Wilcox 2007-09-16 15:37 ` [PATCH 10/17] advansys: Remove asc_board_t typedef and ASC_BOARDP macro Matthew Wilcox 2007-09-16 16:14 ` Matthew Wilcox 2007-09-16 15:37 ` [PATCH 11/17] advansys: Remove library version & serial numbers Matthew Wilcox 2007-09-16 15:37 ` [PATCH 12/17] advansys: Sort out debug macros Matthew Wilcox 2007-09-16 15:37 ` [PATCH 13/17] advansys: Remove private lock Matthew Wilcox 2007-09-16 15:37 ` [PATCH 14/17] advansys: Get rid of board index number Matthew Wilcox 2007-09-16 15:37 ` [PATCH 15/17] advansys: Make sdtr_period_tbl a pointer Matthew Wilcox 2007-09-16 15:37 ` [PATCH 16/17] advansys: Move a couple of fields from struct board to struct adv_dvc Matthew Wilcox 2007-09-16 15:37 ` [PATCH 17/17] advansys: Remove DvcGetPhyAddr Matthew Wilcox 2007-09-16 20:39 ` [PATCH 10/17] advansys: Remove asc_board_t typedef and ASC_BOARDP macro Matthew Wilcox 2007-09-09 14:56 ` [PATCH 17/22] advansys: Remove array of scsi targets Matthew Wilcox 2007-09-09 14:56 ` [PATCH 18/22] advansys: Restructure asc_execute_scsi_cmnd() Matthew Wilcox 2007-09-09 14:56 ` [PATCH 19/22] advansys: Fix simultaneous calls to ->queuecommand Matthew Wilcox 2007-09-09 14:56 ` [PATCH 20/22] advansys: Improve reset handler Matthew Wilcox 2007-09-09 14:56 ` [PATCH 21/22] advansys: Remove ASC_SELECT_QUEUE_DEPTHS Matthew Wilcox 2007-09-09 14:56 ` [PATCH 22/22] advansys: Remove ASC_WIDE_BOARD predicate Matthew Wilcox 2007-09-10 20:00 ` [0/22] Advansys updates 2007-09-09 FUJITA Tomonori 2007-09-11 18:18 ` Matthew Wilcox
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