* Re: areca RAID driver
2006-04-20 20:07 ` Andrew Morton
@ 2006-04-20 20:36 ` Christoph Hellwig
0 siblings, 0 replies; 7+ messages in thread
From: Christoph Hellwig @ 2006-04-20 20:36 UTC (permalink / raw)
To: Andrew Morton
Cc: Christoph Hellwig, James.Bottomley, axboe, erich, billion.wu,
linux-scsi
Here's another patch doign some basic cleanup, this time for the scsi
entry points.
Index: hch/areca/drivers/scsi/arcmsr/arcmsr_hba.c
===================================================================
--- hch.orig/areca/drivers/scsi/arcmsr/arcmsr_hba.c 2006-04-20 21:46:49.000000000 +0200
+++ hch/areca/drivers/scsi/arcmsr/arcmsr_hba.c 2006-04-20 22:33:21.000000000 +0200
@@ -74,43 +74,10 @@
MODULE_VERSION(ARCMSR_DRIVER_VERSION);
static int arcmsr_iop_message_xfer(struct AdapterControlBlock *pACB, struct scsi_cmnd *cmd);
-static int arcmsr_cmd_abort(struct scsi_cmnd *);
-static int arcmsr_bus_reset(struct scsi_cmnd *);
-static int arcmsr_bios_param(struct scsi_device *sdev,
- struct block_device *bdev, sector_t capacity, int *info);
-static int arcmsr_queue_command(struct scsi_cmnd * cmd,
- void (*done) (struct scsi_cmnd *));
static void arcmsr_free_ccb_pool(struct AdapterControlBlock *pACB);
static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *pACB);
static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *pACB);
static uint8_t arcmsr_wait_msgint_ready(struct AdapterControlBlock *pACB);
-static const char *arcmsr_info(struct Scsi_Host *);
-
-static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev, int queue_depth)
-{
- if (queue_depth > ARCMSR_MAX_CMD_PERLUN)
- queue_depth = ARCMSR_MAX_CMD_PERLUN;
- scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth);
- return queue_depth;
-}
-
-static struct scsi_host_template arcmsr_scsi_host_template = {
- .module = THIS_MODULE,
- .name = "ARCMSR ARECA SATA RAID HOST Adapter" ARCMSR_DRIVER_VERSION,
- .info = arcmsr_info,
- .queuecommand = arcmsr_queue_command,
- .eh_abort_handler = arcmsr_cmd_abort,
- .eh_bus_reset_handler = arcmsr_bus_reset,
- .bios_param = arcmsr_bios_param,
- .change_queue_depth = arcmsr_adjust_disk_queue_depth,
- .can_queue = ARCMSR_MAX_OUTSTANDING_CMD,
- .this_id = ARCMSR_SCSI_INITIATOR_ID,
- .sg_tablesize = ARCMSR_MAX_SG_ENTRIES,
- .max_sectors = ARCMSR_MAX_XFER_SECTORS,
- .cmd_per_lun = ARCMSR_MAX_CMD_PERLUN,
- .use_clustering = ENABLE_CLUSTERING,
- .shost_attrs = arcmsr_host_attrs,
-};
static irqreturn_t arcmsr_do_interrupt(int irq, void *dev_id,
struct pt_regs *regs)
@@ -127,8 +94,486 @@
return handle_state;
}
+static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb)
+{
+ struct MessageUnit __iomem *reg = acb->pmu;
+ u32 orig_mask = readl(®->outbound_intmask);
+
+ writel(orig_mask | ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE,
+ ®->outbound_intmask);
+ return orig_mask;
+}
+
+static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb,
+ u32 orig_mask)
+{
+ struct MessageUnit __iomem *reg = acb->pmu;
+ u32 mask;
+
+ mask = orig_mask & ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE |
+ ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE);
+ writel(mask, ®->outbound_intmask);
+}
+
+static void arcmsr_pci_unmap_dma(struct CommandControlBlock *pCCB)
+{
+ struct AdapterControlBlock *acb = pCCB->pACB;
+ struct scsi_cmnd *pcmd = pCCB->pcmd;
+
+ if (pcmd->use_sg != 0) {
+ struct scatterlist *sl;
+
+ sl = (struct scatterlist *)pcmd->request_buffer;
+ pci_unmap_sg(acb->pdev, sl, pcmd->use_sg, pcmd->sc_data_direction);
+ }
+ else if (pcmd->request_bufflen != 0)
+ pci_unmap_single(acb->pdev,
+ (dma_addr_t)(unsigned long)pcmd->SCp.ptr,
+ pcmd->request_bufflen, pcmd->sc_data_direction);
+}
+
+static void arcmsr_ccb_complete(struct CommandControlBlock *pCCB, int stand_flag)
+{
+ struct AdapterControlBlock *acb = pCCB->pACB;
+ struct scsi_cmnd *pcmd = pCCB->pcmd;
+
+ arcmsr_pci_unmap_dma(pCCB);
+ if (stand_flag == 1)
+ atomic_dec(&acb->ccboutstandingcount);
+ pCCB->startdone = ARCMSR_CCB_DONE;
+ pCCB->ccb_flags = 0;
+ list_add_tail(&pCCB->list, &acb->ccb_free_list);
+ pcmd->scsi_done(pcmd);
+}
+
+static struct CommandControlBlock *arcmsr_get_freeccb(
+ struct AdapterControlBlock *acb)
+{
+ struct list_head *head = &acb->ccb_free_list;
+ struct CommandControlBlock *pCCB = NULL;
+
+ if (!list_empty(head)) {
+ pCCB = list_entry(head->next, struct CommandControlBlock, list);
+ list_del(head->next);
+ }
+ return pCCB;
+}
+
+static void arcmsr_build_ccb(struct AdapterControlBlock *pACB, struct CommandControlBlock *pCCB,
+ struct scsi_cmnd *pcmd)
+{
+ struct ARCMSR_CDB *pARCMSR_CDB = (struct ARCMSR_CDB *)&pCCB->arcmsr_cdb;
+ int8_t *psge = (int8_t *)&pARCMSR_CDB->u;
+ uint32_t address_lo, address_hi;
+ int arccdbsize = 0x30;
+
+ pCCB->pcmd = pcmd;
+ memset(pARCMSR_CDB, 0, sizeof (struct ARCMSR_CDB));
+ pARCMSR_CDB->Bus = 0;
+ pARCMSR_CDB->TargetID = pcmd->device->id;
+ pARCMSR_CDB->LUN = pcmd->device->lun;
+ pARCMSR_CDB->Function = 1;
+ pARCMSR_CDB->CdbLength = (uint8_t)pcmd->cmd_len;
+ pARCMSR_CDB->Context = (unsigned long)pARCMSR_CDB;
+ memcpy(pARCMSR_CDB->Cdb, pcmd->cmnd, pcmd->cmd_len);
+ if (pcmd->use_sg) {
+ int length, sgcount, i, cdb_sgcount = 0;
+ struct scatterlist *sl;
+
+ /* Get Scatter Gather List from scsiport. */
+ sl = (struct scatterlist *) pcmd->request_buffer;
+ sgcount = pci_map_sg(pACB->pdev, sl, pcmd->use_sg,
+ pcmd->sc_data_direction);
+ /* map stor port SG list to our iop SG List. */
+ for(i = 0; i < sgcount; i++) {
+ /* Get the physical address of the current data pointer */
+ length = cpu_to_le32(sg_dma_len(sl));
+ address_lo = cpu_to_le32(dma_addr_lo32(sg_dma_address(sl)));
+ address_hi = cpu_to_le32(dma_addr_hi32(sg_dma_address(sl)));
+ if (address_hi == 0) {
+ struct SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge;
+
+ pdma_sg->address = address_lo;
+ pdma_sg->length = length;
+ psge += sizeof (struct SG32ENTRY);
+ arccdbsize += sizeof (struct SG32ENTRY);
+ } else {
+ struct SG64ENTRY *pdma_sg = (struct SG64ENTRY *)psge;
+
+ pdma_sg->addresshigh = address_hi;
+ pdma_sg->address = address_lo;
+ pdma_sg->length = length|IS_SG64_ADDR;
+ psge += sizeof (struct SG64ENTRY);
+ arccdbsize += sizeof (struct SG64ENTRY);
+ }
+ sl++;
+ cdb_sgcount++;
+ }
+ pARCMSR_CDB->sgcount = (uint8_t)cdb_sgcount;
+ pARCMSR_CDB->DataLength = pcmd->request_bufflen;
+ if ( arccdbsize > 256)
+ pARCMSR_CDB->Flags |= ARCMSR_CDB_FLAG_SGL_BSIZE;
+ } else if (pcmd->request_bufflen) {
+ dma_addr_t dma_addr;
+ dma_addr = pci_map_single(pACB->pdev, pcmd->request_buffer,
+ pcmd->request_bufflen, pcmd->sc_data_direction);
+ pcmd->SCp.ptr = (char *)(unsigned long) dma_addr;
+ address_lo = cpu_to_le32(dma_addr_lo32(dma_addr));
+ address_hi = cpu_to_le32(dma_addr_hi32(dma_addr));
+ if (address_hi == 0) {
+ struct SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge;
+ pdma_sg->address = address_lo;
+ pdma_sg->length = pcmd->request_bufflen;
+ } else {
+ struct SG64ENTRY *pdma_sg = (struct SG64ENTRY *)psge;
+ pdma_sg->addresshigh = address_hi;
+ pdma_sg->address = address_lo;
+ pdma_sg->length = pcmd->request_bufflen|IS_SG64_ADDR;
+ }
+ pARCMSR_CDB->sgcount = 1;
+ pARCMSR_CDB->DataLength = pcmd->request_bufflen;
+ }
+ if (pcmd->sc_data_direction == DMA_TO_DEVICE ) {
+ pARCMSR_CDB->Flags |= ARCMSR_CDB_FLAG_WRITE;
+ pCCB->ccb_flags |= CCB_FLAG_WRITE;
+ }
+}
+
+static void arcmsr_post_ccb(struct AdapterControlBlock *pACB, struct CommandControlBlock *pCCB)
+{
+ struct MessageUnit __iomem *reg = pACB->pmu;
+ uint32_t cdb_shifted_phyaddr = pCCB->cdb_shifted_phyaddr;
+ struct ARCMSR_CDB *pARCMSR_CDB = (struct ARCMSR_CDB *)&pCCB->arcmsr_cdb;
+
+ atomic_inc(&pACB->ccboutstandingcount);
+ pCCB->startdone = ARCMSR_CCB_START;
+ if (pARCMSR_CDB->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE)
+ writel(cdb_shifted_phyaddr | ARCMSR_CCBPOST_FLAG_SGL_BSIZE,
+ ®->inbound_queueport);
+ else
+ writel(cdb_shifted_phyaddr, ®->inbound_queueport);
+}
+
+static void arcmsr_report_sense_info(struct CommandControlBlock *pCCB)
+{
+ struct scsi_cmnd *pcmd = pCCB->pcmd;
+ struct SENSE_DATA *psenseBuffer = (struct SENSE_DATA *)pcmd->sense_buffer;
+
+ pcmd->result = DID_OK << 16;
+ if (psenseBuffer) {
+ int sense_data_length =
+ sizeof (struct SENSE_DATA) < sizeof (pcmd->sense_buffer)
+ ? sizeof (struct SENSE_DATA) : sizeof (pcmd->sense_buffer);
+ memset(psenseBuffer, 0, sizeof (pcmd->sense_buffer));
+ memcpy(psenseBuffer, pCCB->arcmsr_cdb.SenseData, sense_data_length);
+ psenseBuffer->ErrorCode = SCSI_SENSE_CURRENT_ERRORS;
+ psenseBuffer->Valid = 1;
+ }
+}
+
+static void arcmsr_polling_ccbdone(struct AdapterControlBlock *pACB,
+ struct CommandControlBlock *poll_ccb)
+{
+ struct MessageUnit __iomem *reg = pACB->pmu;
+ struct CommandControlBlock *pCCB;
+ uint32_t flag_ccb, outbound_intstatus, poll_ccb_done = 0, poll_count = 0;
+ int id, lun;
+
+polling_ccb_retry:
+ poll_count++;
+ outbound_intstatus = readl(®->outbound_intstatus)
+ & pACB->outbound_int_enable;
+ writel(outbound_intstatus, ®->outbound_intstatus);/*clear interrupt*/
+ while (1) {
+ flag_ccb = readl(®->outbound_queueport);
+ if (flag_ccb == 0xFFFFFFFF) {
+ if (poll_ccb_done)
+ break;
+ msleep(25);
+ if (poll_count > 100)
+ break;
+ goto polling_ccb_retry;
+ }
+
+ pCCB = (struct CommandControlBlock *)(pACB->vir2phy_offset + (flag_ccb << 5));
+ if ((pCCB->pACB != pACB) || (pCCB->startdone != ARCMSR_CCB_START)) {
+ if ((pCCB->startdone == ARCMSR_CCB_ABORTED) && (pCCB == poll_ccb)) {
+ printk(KERN_NOTICE
+ "arcmsr%d: scsi id=%d lun=%d ccb='0x%p'"
+ " poll command abort successfully \n"
+ , pACB->host->host_no
+ , pCCB->pcmd->device->id
+ , pCCB->pcmd->device->lun
+ , pCCB);
+ pCCB->pcmd->result = DID_ABORT << 16;
+ arcmsr_ccb_complete(pCCB, 1);
+ poll_ccb_done = 1;
+ continue;
+ }
+ printk(KERN_NOTICE
+ "arcmsr%d: polling get an illegal ccb"
+ " command done ccb='0x%p'"
+ "ccboutstandingcount=%d \n"
+ , pACB->host->host_no
+ , pCCB
+ , atomic_read(&pACB->ccboutstandingcount));
+ continue;
+ }
+ id = pCCB->pcmd->device->id;
+ lun = pCCB->pcmd->device->lun;
+ if (!(flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR)) {
+ if (pACB->devstate[id][lun] == ARECA_RAID_GONE)
+ pACB->devstate[id][lun] = ARECA_RAID_GOOD;
+ pCCB->pcmd->result = DID_OK << 16;
+ arcmsr_ccb_complete(pCCB, 1);
+ continue;
+ }
+
+ switch(pCCB->arcmsr_cdb.DeviceStatus) {
+ case ARCMSR_DEV_SELECT_TIMEOUT:
+ pACB->devstate[id][lun] = ARECA_RAID_GONE;
+ pCCB->pcmd->result = DID_TIME_OUT << 16;
+ arcmsr_ccb_complete(pCCB, 1);
+ break;
+ case ARCMSR_DEV_ABORTED:
+ case ARCMSR_DEV_INIT_FAIL:
+ pACB->devstate[id][lun] = ARECA_RAID_GONE;
+ pCCB->pcmd->result = DID_BAD_TARGET << 16;
+ arcmsr_ccb_complete(pCCB, 1);
+ break;
+ case ARCMSR_DEV_CHECK_CONDITION:
+ pACB->devstate[id][lun] = ARECA_RAID_GOOD;
+ arcmsr_report_sense_info(pCCB);
+ arcmsr_ccb_complete(pCCB, 1);
+ break;
+ default:
+ printk(KERN_NOTICE "arcmsr%d: scsi id=%d lun=%d "
+ "polling and getting command error done "
+ "but got unknown DeviceStatus = 0x%x\n",
+ pACB->host->host_no, id, lun,
+ pCCB->arcmsr_cdb.DeviceStatus);
+ pACB->devstate[id][lun] = ARECA_RAID_GONE;
+ pCCB->pcmd->result = DID_BAD_TARGET << 16;
+ arcmsr_ccb_complete(pCCB, 1);
+ break;
+ }
+ }
+}
+
+static void arcmsr_get_firmware_spec(struct AdapterControlBlock *acb)
+{
+ struct MessageUnit __iomem *reg = acb->pmu;
+ char *acb_firm_model = acb->firm_model;
+ char *acb_firm_version = acb->firm_version;
+ char __iomem *iop_firm_model = (char __iomem *) ®->message_rwbuffer[15];
+ char __iomem *iop_firm_version = (char __iomem *) ®->message_rwbuffer[17];
+ int count;
+
+ writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
+ if (arcmsr_wait_msgint_ready(acb))
+ printk(KERN_NOTICE
+ "arcmsr%d: wait "
+ "'get adapter firmware miscellaneous data' timeout \n",
+ acb->host->host_no);
+ count = 8;
+ while (count) {
+ *acb_firm_model = readb(iop_firm_model);
+ acb_firm_model++;
+ iop_firm_model++;
+ count--;
+ }
+ count = 16;
+ while (count) {
+ *acb_firm_version = readb(iop_firm_version);
+ acb_firm_version++;
+ iop_firm_version++;
+ count--;
+ }
+
+ acb->firm_request_len = readl(®->message_rwbuffer[1]);
+ acb->firm_numbers_queue = readl(®->message_rwbuffer[2]);
+ acb->firm_sdram_size = readl(®->message_rwbuffer[3]);
+ acb->firm_hd_channels = readl(®->message_rwbuffer[4]);
+}
+
+static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb,
+ struct scsi_cmnd *cmd)
+{
+ switch (cmd->cmnd[0]) {
+ case INQUIRY: {
+ unsigned char inqdata[36];
+ char *buffer;
+
+ if (cmd->device->lun) {
+ cmd->result = (DID_TIME_OUT << 16);
+ cmd->scsi_done(cmd);
+ return;
+ }
+
+ inqdata[0] = TYPE_PROCESSOR;
+ /* Periph Qualifier & Periph Dev Type */
+ inqdata[1] = 0;
+ /* rem media bit & Dev Type Modifier */
+ inqdata[2] = 0;
+ /* ISO,ECMA,& ANSI versions */
+ inqdata[4] = 31;
+ /* length of additional data */
+ strncpy(&inqdata[8], "Areca ", 8);
+ /* Vendor Identification */
+ strncpy(&inqdata[16], "RAID controller ", 16);
+ /* Product Identification */
+ strncpy(&inqdata[32], "R001", 4); /* Product Revision */
+ if (cmd->use_sg) {
+ struct scatterlist *sg;
+
+ sg = (struct scatterlist *) cmd->request_buffer;
+ buffer = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
+ } else {
+ buffer = cmd->request_buffer;
+ }
+ memcpy(buffer, inqdata, sizeof(inqdata));
+ if (cmd->use_sg) {
+ struct scatterlist *sg;
+
+ sg = (struct scatterlist *) cmd->request_buffer;
+ kunmap_atomic(buffer - sg->offset, KM_IRQ0);
+ }
+ cmd->scsi_done(cmd);
+ }
+ case WRITE_BUFFER:
+ case READ_BUFFER:
+ if (arcmsr_iop_message_xfer(acb, cmd))
+ cmd->result = (DID_ERROR << 16);
+ cmd->scsi_done(cmd);
+ default:
+ cmd->scsi_done(cmd);
+ }
+}
+
+static int arcmsr_queue_command(struct scsi_cmnd *cmd,
+ void (*done)(struct scsi_cmnd *))
+{
+ struct Scsi_Host *host = cmd->device->host;
+ struct AdapterControlBlock *acb =
+ (struct AdapterControlBlock *) host->hostdata;
+ struct CommandControlBlock *pCCB;
+ int target = cmd->device->id;
+ int lun = cmd->device->lun;
+
+ cmd->scsi_done = done;
+ cmd->host_scribble = NULL;
+ cmd->result = 0;
+
+ if (acb->acb_flags & ACB_F_BUS_RESET) {
+ printk(KERN_NOTICE "arcmsr%d: bus reset"
+ " and return busy\n",
+ acb->host->host_no);
+ return SCSI_MLQUEUE_HOST_BUSY;
+ }
+
+ if (target == 16) {
+ arcmsr_handle_virtual_command(acb, cmd);
+ return 0;
+ }
+
+ if (acb->devstate[target][lun] == ARECA_RAID_GONE) {
+ uint8_t block_cmd;
+
+ block_cmd = cmd->cmnd[0] & 0x0f;
+ if (block_cmd == 0x08 || block_cmd == 0x0a) {
+ printk(KERN_NOTICE
+ "arcmsr%d: block 'read/write'"
+ "command with gone raid volume"
+ " Cmd=%2x, TargetId=%d, Lun=%d\n",
+ acb->host->host_no, cmd->cmnd[0],
+ target, lun);
+ cmd->result = (DID_NO_CONNECT << 16);
+ cmd->scsi_done(cmd);
+ return 0;
+ }
+ }
+
+ if (atomic_read(&acb->ccboutstandingcount) >=
+ ARCMSR_MAX_OUTSTANDING_CMD)
+ return SCSI_MLQUEUE_HOST_BUSY;
+
+ pCCB = arcmsr_get_freeccb(acb);
+ if (!pCCB)
+ return SCSI_MLQUEUE_HOST_BUSY;
+ arcmsr_build_ccb(acb, pCCB, cmd);
+ arcmsr_post_ccb(acb, pCCB);
+ return 0;
+}
+
+static void arcmsr_abort_one_cmd(struct AdapterControlBlock *acb,
+ struct CommandControlBlock *ccb)
+{
+ u32 intmask;
+
+ ccb->startdone = ARCMSR_CCB_ABORTED;
+
+ /*
+ * Wait for 3 sec for all command done.
+ */
+ msleep_interruptible(3000);
+
+ intmask = arcmsr_disable_outbound_ints(acb);
+ arcmsr_polling_ccbdone(acb, ccb);
+ arcmsr_enable_outbound_ints(acb, intmask);
+}
+
+static int arcmsr_abort(struct scsi_cmnd *cmd)
+{
+ struct AdapterControlBlock *acb =
+ (struct AdapterControlBlock *)cmd->device->host->hostdata;
+ int i = 0;
+
+ printk(KERN_NOTICE
+ "arcmsr%d: abort device command of scsi id=%d lun=%d\n",
+ acb->host->host_no, cmd->device->id, cmd->device->lun);
+ acb->num_aborts++;
+
+ /*
+ * First determine if we currently own this command.
+ * Start by searching the device queue. If not found
+ * at all, and the system wanted us to just abort the
+ * command return success.
+ */
+ if (!atomic_read(&acb->ccboutstandingcount))
+ return SUCCESS;
+
+ for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
+ struct CommandControlBlock *ccb = acb->pccb_pool[i];
+ if (ccb->startdone == ARCMSR_CCB_START && ccb->pcmd == cmd) {
+ arcmsr_abort_one_cmd(acb, ccb);
+ break;
+ }
+ }
+
+ return SUCCESS;
+}
+
+static int arcmsr_bus_reset(struct scsi_cmnd *cmd)
+{
+ struct AdapterControlBlock *acb =
+ (struct AdapterControlBlock *)cmd->device->host->hostdata;
+ int i;
+
+ acb->num_resets++;
+ acb->acb_flags |= ACB_F_BUS_RESET;
+ for (i = 0; i < 400; i++) {
+ if (!atomic_read(&acb->ccboutstandingcount))
+ break;
+ arcmsr_interrupt(acb);
+ msleep(25);
+ }
+ arcmsr_iop_reset(acb);
+ acb->acb_flags &= ~ACB_F_BUS_RESET;
+ return SUCCESS;
+}
+
static int arcmsr_bios_param(struct scsi_device *sdev,
- struct block_device *bdev, sector_t capacity, int *geom)
+ struct block_device *bdev, sector_t capacity, int *geom)
{
int ret, heads, sectors, cylinders, total_capacity;
unsigned char *buffer;/* return copy of block device's partition table */
@@ -155,73 +600,73 @@
return 0;
}
-static void arcmsr_pci_unmap_dma(struct CommandControlBlock *pCCB)
-{
- struct AdapterControlBlock *acb = pCCB->pACB;
- struct scsi_cmnd *pcmd = pCCB->pcmd;
-
- if (pcmd->use_sg != 0) {
- struct scatterlist *sl;
-
- sl = (struct scatterlist *)pcmd->request_buffer;
- pci_unmap_sg(acb->pdev, sl, pcmd->use_sg, pcmd->sc_data_direction);
- }
- else if (pcmd->request_bufflen != 0)
- pci_unmap_single(acb->pdev,
- (dma_addr_t)(unsigned long)pcmd->SCp.ptr,
- pcmd->request_bufflen, pcmd->sc_data_direction);
-}
-
-static void arcmsr_ccb_complete(struct CommandControlBlock *pCCB, int stand_flag)
+static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev,
+ int queue_depth)
{
- struct AdapterControlBlock *acb = pCCB->pACB;
- struct scsi_cmnd *pcmd = pCCB->pcmd;
-
- arcmsr_pci_unmap_dma(pCCB);
- if (stand_flag == 1)
- atomic_dec(&acb->ccboutstandingcount);
- pCCB->startdone = ARCMSR_CCB_DONE;
- pCCB->ccb_flags = 0;
- list_add_tail(&pCCB->list, &acb->ccb_free_list);
- pcmd->scsi_done(pcmd);
+ if (queue_depth > ARCMSR_MAX_CMD_PERLUN)
+ queue_depth = ARCMSR_MAX_CMD_PERLUN;
+ scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth);
+ return queue_depth;
}
-static void arcmsr_get_firmware_spec(struct AdapterControlBlock *acb)
+static const char *arcmsr_info(struct Scsi_Host *host)
{
- struct MessageUnit __iomem *reg = acb->pmu;
- char *acb_firm_model = acb->firm_model;
- char *acb_firm_version = acb->firm_version;
- char __iomem *iop_firm_model = (char __iomem *) ®->message_rwbuffer[15];
- char __iomem *iop_firm_version = (char __iomem *) ®->message_rwbuffer[17];
- int count;
+ struct AdapterControlBlock *acb =
+ (struct AdapterControlBlock *) host->hostdata;
+ static char buf[256];
+ char *type;
+ int raid6 = 1;
- writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, ®->inbound_msgaddr0);
- if (arcmsr_wait_msgint_ready(acb))
- printk(KERN_NOTICE
- "arcmsr%d: wait "
- "'get adapter firmware miscellaneous data' timeout \n",
- acb->host->host_no);
- count = 8;
- while (count) {
- *acb_firm_model = readb(iop_firm_model);
- acb_firm_model++;
- iop_firm_model++;
- count--;
- }
- count = 16;
- while (count) {
- *acb_firm_version = readb(iop_firm_version);
- acb_firm_version++;
- iop_firm_version++;
- count--;
+ switch (acb->pdev->device) {
+ case PCI_DEVICE_ID_ARECA_1110:
+ case PCI_DEVICE_ID_ARECA_1210:
+ raid6 = 0;
+ /*FALLTHRU*/
+ case PCI_DEVICE_ID_ARECA_1120:
+ case PCI_DEVICE_ID_ARECA_1130:
+ case PCI_DEVICE_ID_ARECA_1160:
+ case PCI_DEVICE_ID_ARECA_1170:
+ case PCI_DEVICE_ID_ARECA_1220:
+ case PCI_DEVICE_ID_ARECA_1230:
+ case PCI_DEVICE_ID_ARECA_1260:
+ case PCI_DEVICE_ID_ARECA_1270:
+ case PCI_DEVICE_ID_ARECA_1280:
+ type = "SATA";
+ break;
+ case PCI_DEVICE_ID_ARECA_1380:
+ case PCI_DEVICE_ID_ARECA_1381:
+ case PCI_DEVICE_ID_ARECA_1680:
+ case PCI_DEVICE_ID_ARECA_1681:
+ type = "SAS";
+ break;
+ default:
+ type = "X-TYPE";
+ break;
}
- acb->firm_request_len = readl(®->message_rwbuffer[1]);
- acb->firm_numbers_queue = readl(®->message_rwbuffer[2]);
- acb->firm_sdram_size = readl(®->message_rwbuffer[3]);
- acb->firm_hd_channels = readl(®->message_rwbuffer[4]);
+ sprintf(buf, "Areca %s Host Adapter RAID Controller%s\n %s",
+ type, raid6 ? "( RAID6 capable)" : "",
+ ARCMSR_DRIVER_VERSION);
+ return buf;
}
+static struct scsi_host_template arcmsr_scsi_host_template = {
+ .module = THIS_MODULE,
+ .name = "ARCMSR ARECA SATA RAID HOST Adapter" ARCMSR_DRIVER_VERSION,
+ .info = arcmsr_info,
+ .queuecommand = arcmsr_queue_command,
+ .eh_abort_handler = arcmsr_abort,
+ .eh_bus_reset_handler = arcmsr_bus_reset,
+ .bios_param = arcmsr_bios_param,
+ .change_queue_depth = arcmsr_adjust_disk_queue_depth,
+ .can_queue = ARCMSR_MAX_OUTSTANDING_CMD,
+ .this_id = ARCMSR_SCSI_INITIATOR_ID,
+ .sg_tablesize = ARCMSR_MAX_SG_ENTRIES,
+ .max_sectors = ARCMSR_MAX_XFER_SECTORS,
+ .cmd_per_lun = ARCMSR_MAX_CMD_PERLUN,
+ .use_clustering = ENABLE_CLUSTERING,
+ .shost_attrs = arcmsr_host_attrs,
+};
static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
{
@@ -282,9 +727,6 @@
acb->host->host_no);
}
- writel(readl(®->outbound_intmask) |
- ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE,
- ®->outbound_intmask);
return 0;
}
@@ -311,8 +753,8 @@
outbound_doorbell = readl(®->outbound_doorbell);
writel(outbound_doorbell, ®->outbound_doorbell);
writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK, ®->inbound_doorbell);
- mask = ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE
- | ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE);
+ mask = ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE |
+ ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE);
writel(intmask_org & mask, ®->outbound_intmask);
acb->outbound_int_enable = ~(intmask_org & mask) & 0x000000ff;
acb->acb_flags |= ACB_F_IOP_INITED;
@@ -400,6 +842,8 @@
if (error)
goto out_iounmap;
+ arcmsr_disable_outbound_ints(acb);
+
error = request_irq(pdev->irq, arcmsr_do_interrupt,
SA_INTERRUPT | SA_SHIRQ, "arcmsr", acb);
if (error)
@@ -444,9 +888,7 @@
arcmsr_stop_adapter_bgrb(acb);
arcmsr_flush_adapter_cache(acb);
- writel(readl(®->outbound_intmask) |
- ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE,
- ®->outbound_intmask);
+ arcmsr_disable_outbound_ints(acb);
acb->acb_flags |= ACB_F_SCSISTOPADAPTER;
acb->acb_flags &= ~ACB_F_IOP_INITED;
@@ -536,180 +978,64 @@
static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *pACB)
{
- struct MessageUnit __iomem *reg=pACB->pmu;
-
- writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, ®->inbound_msgaddr0);
- if (arcmsr_wait_msgint_ready(pACB))
- printk(KERN_NOTICE
- "arcmsr%d: wait 'flush adapter cache' timeout \n"
- , pACB->host->host_no);
-}
-
-static void arcmsr_report_sense_info(struct CommandControlBlock *pCCB)
-{
- struct scsi_cmnd *pcmd = pCCB->pcmd;
- struct SENSE_DATA *psenseBuffer = (struct SENSE_DATA *)pcmd->sense_buffer;
-
- pcmd->result = DID_OK << 16;
- if (psenseBuffer) {
- int sense_data_length =
- sizeof (struct SENSE_DATA) < sizeof (pcmd->sense_buffer)
- ? sizeof (struct SENSE_DATA) : sizeof (pcmd->sense_buffer);
- memset(psenseBuffer, 0, sizeof (pcmd->sense_buffer));
- memcpy(psenseBuffer, pCCB->arcmsr_cdb.SenseData, sense_data_length);
- psenseBuffer->ErrorCode = SCSI_SENSE_CURRENT_ERRORS;
- psenseBuffer->Valid = 1;
- }
-}
-
-static uint8_t arcmsr_wait_msgint_ready(struct AdapterControlBlock *pACB)
-{
- struct MessageUnit __iomem *reg = pACB->pmu;
- uint32_t Index;
- uint8_t Retries = 0x00;
-
- do {
- for(Index = 0; Index < 100; Index++) {
- if (readl(®->outbound_intstatus)
- & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
- writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT
- , ®->outbound_intstatus);
- return 0x00;
- }
- msleep_interruptible(10);
- }/*max 1 seconds*/
- } while (Retries++ < 20);/*max 20 sec*/
- return 0xff;
-}
-
-void arcmsr_iop_reset(struct AdapterControlBlock *pACB)
-{
- struct MessageUnit __iomem *reg = pACB->pmu;
- struct CommandControlBlock *pCCB;
- uint32_t intmask_org, mask;
- int i = 0;
-
- if (atomic_read(&pACB->ccboutstandingcount) != 0) {
- /* talk to iop 331 outstanding command aborted */
- arcmsr_abort_allcmd(pACB);
- /* wait for 3 sec for all command aborted*/
- msleep_interruptible(3000);
- /* disable all outbound interrupt */
- intmask_org = readl(®->outbound_intmask);
- writel(intmask_org | ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE,
- ®->outbound_intmask);
- /* clear all outbound posted Q */
- for(i = 0; i < ARCMSR_MAX_OUTSTANDING_CMD; i++)
- readl(®->outbound_queueport);
- for(i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
- pCCB = pACB->pccb_pool[i];
- if (pCCB->startdone == ARCMSR_CCB_START) {
- pCCB->startdone = ARCMSR_CCB_ABORTED;
- pCCB->pcmd->result = DID_ABORT << 16;
- arcmsr_ccb_complete(pCCB, 1);
- }
- }
- /* enable all outbound interrupt */
- mask =~ (ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE
- | ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE);
- writel(intmask_org & mask, ®->outbound_intmask);
- }
- atomic_set(&pACB->ccboutstandingcount, 0);
-}
-
-static void arcmsr_build_ccb(struct AdapterControlBlock *pACB, struct CommandControlBlock *pCCB,
- struct scsi_cmnd *pcmd)
-{
- struct ARCMSR_CDB *pARCMSR_CDB = (struct ARCMSR_CDB *)&pCCB->arcmsr_cdb;
- int8_t *psge = (int8_t *)&pARCMSR_CDB->u;
- uint32_t address_lo, address_hi;
- int arccdbsize = 0x30;
-
- pCCB->pcmd = pcmd;
- memset(pARCMSR_CDB, 0, sizeof (struct ARCMSR_CDB));
- pARCMSR_CDB->Bus = 0;
- pARCMSR_CDB->TargetID = pcmd->device->id;
- pARCMSR_CDB->LUN = pcmd->device->lun;
- pARCMSR_CDB->Function = 1;
- pARCMSR_CDB->CdbLength = (uint8_t)pcmd->cmd_len;
- pARCMSR_CDB->Context = (unsigned long)pARCMSR_CDB;
- memcpy(pARCMSR_CDB->Cdb, pcmd->cmnd, pcmd->cmd_len);
- if (pcmd->use_sg) {
- int length, sgcount, i, cdb_sgcount = 0;
- struct scatterlist *sl;
-
- /* Get Scatter Gather List from scsiport. */
- sl = (struct scatterlist *) pcmd->request_buffer;
- sgcount = pci_map_sg(pACB->pdev, sl, pcmd->use_sg,
- pcmd->sc_data_direction);
- /* map stor port SG list to our iop SG List. */
- for(i = 0; i < sgcount; i++) {
- /* Get the physical address of the current data pointer */
- length = cpu_to_le32(sg_dma_len(sl));
- address_lo = cpu_to_le32(dma_addr_lo32(sg_dma_address(sl)));
- address_hi = cpu_to_le32(dma_addr_hi32(sg_dma_address(sl)));
- if (address_hi == 0) {
- struct SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge;
-
- pdma_sg->address = address_lo;
- pdma_sg->length = length;
- psge += sizeof (struct SG32ENTRY);
- arccdbsize += sizeof (struct SG32ENTRY);
- } else {
- struct SG64ENTRY *pdma_sg = (struct SG64ENTRY *)psge;
-
- pdma_sg->addresshigh = address_hi;
- pdma_sg->address = address_lo;
- pdma_sg->length = length|IS_SG64_ADDR;
- psge += sizeof (struct SG64ENTRY);
- arccdbsize += sizeof (struct SG64ENTRY);
- }
- sl++;
- cdb_sgcount++;
- }
- pARCMSR_CDB->sgcount = (uint8_t)cdb_sgcount;
- pARCMSR_CDB->DataLength = pcmd->request_bufflen;
- if ( arccdbsize > 256)
- pARCMSR_CDB->Flags |= ARCMSR_CDB_FLAG_SGL_BSIZE;
- } else if (pcmd->request_bufflen) {
- dma_addr_t dma_addr;
- dma_addr = pci_map_single(pACB->pdev, pcmd->request_buffer,
- pcmd->request_bufflen, pcmd->sc_data_direction);
- pcmd->SCp.ptr = (char *)(unsigned long) dma_addr;
- address_lo = cpu_to_le32(dma_addr_lo32(dma_addr));
- address_hi = cpu_to_le32(dma_addr_hi32(dma_addr));
- if (address_hi == 0) {
- struct SG32ENTRY *pdma_sg = (struct SG32ENTRY *)psge;
- pdma_sg->address = address_lo;
- pdma_sg->length = pcmd->request_bufflen;
- } else {
- struct SG64ENTRY *pdma_sg = (struct SG64ENTRY *)psge;
- pdma_sg->addresshigh = address_hi;
- pdma_sg->address = address_lo;
- pdma_sg->length = pcmd->request_bufflen|IS_SG64_ADDR;
- }
- pARCMSR_CDB->sgcount = 1;
- pARCMSR_CDB->DataLength = pcmd->request_bufflen;
- }
- if (pcmd->sc_data_direction == DMA_TO_DEVICE ) {
- pARCMSR_CDB->Flags |= ARCMSR_CDB_FLAG_WRITE;
- pCCB->ccb_flags |= CCB_FLAG_WRITE;
- }
+ struct MessageUnit __iomem *reg=pACB->pmu;
+
+ writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, ®->inbound_msgaddr0);
+ if (arcmsr_wait_msgint_ready(pACB))
+ printk(KERN_NOTICE
+ "arcmsr%d: wait 'flush adapter cache' timeout \n"
+ , pACB->host->host_no);
}
-static void arcmsr_post_ccb(struct AdapterControlBlock *pACB, struct CommandControlBlock *pCCB)
+static uint8_t arcmsr_wait_msgint_ready(struct AdapterControlBlock *pACB)
{
struct MessageUnit __iomem *reg = pACB->pmu;
- uint32_t cdb_shifted_phyaddr = pCCB->cdb_shifted_phyaddr;
- struct ARCMSR_CDB *pARCMSR_CDB = (struct ARCMSR_CDB *)&pCCB->arcmsr_cdb;
+ uint32_t Index;
+ uint8_t Retries = 0x00;
- atomic_inc(&pACB->ccboutstandingcount);
- pCCB->startdone = ARCMSR_CCB_START;
- if (pARCMSR_CDB->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE)
- writel(cdb_shifted_phyaddr | ARCMSR_CCBPOST_FLAG_SGL_BSIZE,
- ®->inbound_queueport);
- else
- writel(cdb_shifted_phyaddr, ®->inbound_queueport);
+ do {
+ for(Index = 0; Index < 100; Index++) {
+ if (readl(®->outbound_intstatus)
+ & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
+ writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT
+ , ®->outbound_intstatus);
+ return 0x00;
+ }
+ msleep_interruptible(10);
+ }/*max 1 seconds*/
+ } while (Retries++ < 20);/*max 20 sec*/
+ return 0xff;
+}
+
+void arcmsr_iop_reset(struct AdapterControlBlock *pACB)
+{
+ struct MessageUnit __iomem *reg = pACB->pmu;
+ struct CommandControlBlock *pCCB;
+ uint32_t intmask_org;
+ int i = 0;
+
+ if (atomic_read(&pACB->ccboutstandingcount) != 0) {
+ /* talk to iop 331 outstanding command aborted */
+ arcmsr_abort_allcmd(pACB);
+ /* wait for 3 sec for all command aborted*/
+ msleep_interruptible(3000);
+ /* disable all outbound interrupt */
+ intmask_org = arcmsr_disable_outbound_ints(pACB);
+ /* clear all outbound posted Q */
+ for(i = 0; i < ARCMSR_MAX_OUTSTANDING_CMD; i++)
+ readl(®->outbound_queueport);
+ for(i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
+ pCCB = pACB->pccb_pool[i];
+ if (pCCB->startdone == ARCMSR_CCB_START) {
+ pCCB->startdone = ARCMSR_CCB_ABORTED;
+ pCCB->pcmd->result = DID_ABORT << 16;
+ arcmsr_ccb_complete(pCCB, 1);
+ }
+ }
+ /* enable all outbound interrupt */
+ arcmsr_enable_outbound_ints(pACB, intmask_org);
+ }
+ atomic_set(&pACB->ccboutstandingcount, 0);
}
void arcmsr_post_Qbuffer(struct AdapterControlBlock *pACB)
@@ -1130,374 +1456,3 @@
}
return retvalue;
}
-
-static struct CommandControlBlock *arcmsr_get_freeccb(struct AdapterControlBlock *pACB)
-{
- struct list_head *head = &pACB->ccb_free_list;
- struct CommandControlBlock *pCCB = NULL;
-
- if (!list_empty(head)) {
- pCCB = list_entry(head->next, struct CommandControlBlock, list);
- list_del(head->next);
- }
- return pCCB;
-}
-
-static int arcmsr_queue_command(struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd *))
-{
- struct Scsi_Host *host = cmd->device->host;
- struct AdapterControlBlock *pACB = (struct AdapterControlBlock *) host->hostdata;
- struct CommandControlBlock *pCCB;
- int target = cmd->device->id;
- int lun = cmd->device->lun;
- uint8_t scsicmd = cmd->cmnd[0];
-
- cmd->scsi_done = done;
- cmd->host_scribble = NULL;
- cmd->result = 0;
- if (scsicmd == SYNCHRONIZE_CACHE) {
- /*
- ** 0x35 avoid synchronizing disk cache cmd after
- ** .remove : arcmsr_device_remove (linux bug)
- */
- if (pACB->devstate[target][lun] == ARECA_RAID_GONE)
- cmd->result = (DID_NO_CONNECT << 16);
- cmd->scsi_done(cmd);
- return 0;
- }
- if (pACB->acb_flags & ACB_F_BUS_RESET) {
- printk(KERN_NOTICE "arcmsr%d: bus reset"
- " and return busy \n"
- , pACB->host->host_no);
- return SCSI_MLQUEUE_HOST_BUSY;
- }
- if(target == 16) {
- /* virtual device for iop message transfer */
- switch(scsicmd) {
- case INQUIRY: {
- unsigned char inqdata[36];
- char *buffer;
-
- if(lun != 0) {
- cmd->result = (DID_TIME_OUT << 16);
- cmd->scsi_done(cmd);
- return 0;
- }
- inqdata[0] = TYPE_PROCESSOR;
- /* Periph Qualifier & Periph Dev Type */
- inqdata[1] = 0;
- /* rem media bit & Dev Type Modifier */
- inqdata[2] = 0;
- /* ISO,ECMA,& ANSI versions */
- inqdata[4] = 31;
- /* length of additional data */
- strncpy(&inqdata[8], "Areca ", 8);
- /* Vendor Identification */
- strncpy(&inqdata[16], "RAID controller ", 16);
- /* Product Identification */
- strncpy(&inqdata[32], "R001", 4); /* Product Revision */
- if (cmd->use_sg) {
- struct scatterlist *sg;
-
- sg = (struct scatterlist *) cmd->request_buffer;
- buffer = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
- } else {
- buffer = cmd->request_buffer;
- }
- memcpy(buffer, inqdata, sizeof(inqdata));
- if (cmd->use_sg) {
- struct scatterlist *sg;
-
- sg = (struct scatterlist *) cmd->request_buffer;
- kunmap_atomic(buffer - sg->offset, KM_IRQ0);
- }
- cmd->scsi_done(cmd);
- return 0;
- }
- case WRITE_BUFFER:
- case READ_BUFFER: {
- if (arcmsr_iop_message_xfer(pACB, cmd)) {
- cmd->result = (DID_ERROR << 16);
- }
- cmd->scsi_done(cmd);
- return 0;
- }
- default:
- cmd->scsi_done(cmd);
- return 0;
- }
- }
- if (pACB->devstate[target][lun] == ARECA_RAID_GONE) {
- uint8_t block_cmd;
-
- block_cmd = cmd->cmnd[0] & 0x0f;
- if (block_cmd == 0x08 || block_cmd == 0x0a) {
- printk(KERN_NOTICE
- "arcmsr%d: block 'read/write'"
- "command with gone raid volume"
- " Cmd=%2x, TargetId=%d, Lun=%d \n"
- , pACB->host->host_no
- , cmd->cmnd[0]
- , target
- , lun);
- cmd->result = (DID_NO_CONNECT << 16);
- cmd->scsi_done(cmd);
- return 0;
- }
- }
- if (atomic_read(&pACB->ccboutstandingcount) < ARCMSR_MAX_OUTSTANDING_CMD) {
- pCCB = arcmsr_get_freeccb(pACB);
- if (pCCB) {
- arcmsr_build_ccb(pACB, pCCB, cmd);
- arcmsr_post_ccb(pACB, pCCB);
- return 0;
- }
- }
- return SCSI_MLQUEUE_HOST_BUSY;
-}
-
-static void arcmsr_polling_ccbdone(struct AdapterControlBlock *pACB, struct CommandControlBlock *poll_ccb)
-{
- struct MessageUnit __iomem *reg = pACB->pmu;
- struct CommandControlBlock *pCCB;
- uint32_t flag_ccb, outbound_intstatus, poll_ccb_done = 0, poll_count = 0;
- int id, lun;
-
-polling_ccb_retry:
- poll_count++;
- outbound_intstatus = readl(®->outbound_intstatus)
- & pACB->outbound_int_enable;
- writel(outbound_intstatus, ®->outbound_intstatus);/*clear interrupt*/
- while (1) {
- if ((flag_ccb = readl(®->outbound_queueport)) == 0xFFFFFFFF) {
- if (poll_ccb_done)
- break;
- else {
- msleep(25);
- if (poll_count > 100)
- break;
- goto polling_ccb_retry;
- }
- }
- pCCB = (struct CommandControlBlock *)(pACB->vir2phy_offset + (flag_ccb << 5));
- if ((pCCB->pACB != pACB) || (pCCB->startdone != ARCMSR_CCB_START)) {
- if ((pCCB->startdone == ARCMSR_CCB_ABORTED) && (pCCB == poll_ccb)) {
- printk(KERN_NOTICE
- "arcmsr%d: scsi id=%d lun=%d ccb='0x%p'"
- " poll command abort successfully \n"
- , pACB->host->host_no
- , pCCB->pcmd->device->id
- , pCCB->pcmd->device->lun
- , pCCB);
- pCCB->pcmd->result = DID_ABORT << 16;
- arcmsr_ccb_complete(pCCB, 1);
- poll_ccb_done = 1;
- continue;
- }
- printk(KERN_NOTICE
- "arcmsr%d: polling get an illegal ccb"
- " command done ccb='0x%p'"
- "ccboutstandingcount=%d \n"
- , pACB->host->host_no
- , pCCB
- , atomic_read(&pACB->ccboutstandingcount));
- continue;
- }
- id = pCCB->pcmd->device->id;
- lun = pCCB->pcmd->device->lun;
- if (!(flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR)) {
- if (pACB->devstate[id][lun] == ARECA_RAID_GONE)
- pACB->devstate[id][lun] = ARECA_RAID_GOOD;
- pCCB->pcmd->result = DID_OK << 16;
- arcmsr_ccb_complete(pCCB, 1);
- } else {
- switch(pCCB->arcmsr_cdb.DeviceStatus) {
- case ARCMSR_DEV_SELECT_TIMEOUT: {
- pACB->devstate[id][lun] = ARECA_RAID_GONE;
- pCCB->pcmd->result = DID_TIME_OUT << 16;
- arcmsr_ccb_complete(pCCB, 1);
- }
- break;
- case ARCMSR_DEV_ABORTED:
- case ARCMSR_DEV_INIT_FAIL: {
- pACB->devstate[id][lun] = ARECA_RAID_GONE;
- pCCB->pcmd->result = DID_BAD_TARGET << 16;
- arcmsr_ccb_complete(pCCB, 1);
- }
- break;
- case ARCMSR_DEV_CHECK_CONDITION: {
- pACB->devstate[id][lun] = ARECA_RAID_GOOD;
- arcmsr_report_sense_info(pCCB);
- arcmsr_ccb_complete(pCCB, 1);
- }
- break;
- default:
- printk(KERN_NOTICE
- "arcmsr%d: scsi id=%d lun=%d"
- " polling and getting command error done"
- "but got unknown DeviceStatus = 0x%x \n"
- , pACB->host->host_no
- , id
- , lun
- , pCCB->arcmsr_cdb.DeviceStatus);
- pACB->devstate[id][lun] = ARECA_RAID_GONE;
- pCCB->pcmd->result = DID_BAD_TARGET << 16;
- arcmsr_ccb_complete(pCCB, 1);
- break;
- }
- }
- }
-}
-
-static int arcmsr_bus_reset(struct scsi_cmnd *cmd)
-{
- struct AdapterControlBlock *pACB;
- int retry = 0;
-
- pACB = (struct AdapterControlBlock *) cmd->device->host->hostdata;
- printk(KERN_NOTICE "arcmsr%d: bus reset ..... \n", pACB->host->host_no);
- pACB->num_resets++;
- pACB->acb_flags |= ACB_F_BUS_RESET;
- while (atomic_read(&pACB->ccboutstandingcount) != 0 && retry < 400) {
- arcmsr_interrupt(pACB);
- msleep(25);
- retry++;
- }
- arcmsr_iop_reset(pACB);
- pACB->acb_flags &= ~ACB_F_BUS_RESET;
- return SUCCESS;
-}
-
-static int arcmsr_seek_cmd2abort(struct scsi_cmnd *abortcmd)
-{
- struct AdapterControlBlock *pACB = (struct AdapterControlBlock *)
- abortcmd->device->host->hostdata;
- struct MessageUnit __iomem *reg = pACB->pmu;
- struct CommandControlBlock *pCCB;
- uint32_t intmask_org, mask;
- int i = 0;
-
- pACB->num_aborts++;
- /*
- *****************************************************************
- ** It is the upper layer do abort command this lock just prior
- ** to calling us.
- ** First determine if we currently own this command.
- ** Start by searching the device queue. If not found
- ** at all, and the system wanted us to just abort the
- ** command return success.
- *****************************************************************
- */
- if (atomic_read(&pACB->ccboutstandingcount) != 0) {
- for(i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
- pCCB = pACB->pccb_pool[i];
- if (pCCB->startdone == ARCMSR_CCB_START) {
- if (pCCB->pcmd == abortcmd) {
- pCCB->startdone = ARCMSR_CCB_ABORTED;
- printk(KERN_NOTICE
- "arcmsr%d: scsi id=%d lun=%d"
- " abort ccb '0x%p' outstanding command\n"
- , pACB->host->host_no
- , abortcmd->device->id
- , abortcmd->device->lun
- , pCCB);
- goto abort_outstanding_cmd;
- }
- }
- }
- }
- return SUCCESS;
-abort_outstanding_cmd:
- /*wait for 3 sec for all command done*/
- msleep_interruptible(3000);
- /* disable all outbound interrupt */
- intmask_org = readl(®->outbound_intmask);
- writel(intmask_org | ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE
- , ®->outbound_intmask);
- arcmsr_polling_ccbdone(pACB, pCCB);
- /* enable all outbound interrupt */
- mask = ~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE
- | ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE);
- writel(intmask_org & mask, ®->outbound_intmask);
- return SUCCESS;
-}
-
-static int arcmsr_cmd_abort(struct scsi_cmnd *cmd)
-{
- struct AdapterControlBlock *pACB = (struct AdapterControlBlock *)
- cmd->device->host->hostdata;
- int error;
-
- printk(KERN_NOTICE
- "arcmsr%d: abort device command of scsi id=%d lun=%d \n"
- , pACB->host->host_no
- , cmd->device->id
- , cmd->device->lun);
- /*
- ************************************************
- ** the all interrupt service routine is locked
- ** we need to handle it as soon as possible and exit
- ************************************************
- */
- error = arcmsr_seek_cmd2abort(cmd);
- if (error != SUCCESS)
- printk(KERN_NOTICE
- "arcmsr%d: abort command failed scsi id=%d lun=%d \n"
- , pACB->host->host_no
- , cmd->device->id
- , cmd->device->lun);
- return error;
-}
-
-static const char *arcmsr_info(struct Scsi_Host *host)
-{
- static char buf[256];
- struct AdapterControlBlock *pACB;
- uint16_t device_id;
-
- pACB = (struct AdapterControlBlock *) host->hostdata;
- device_id = pACB->pdev->device;
- switch(device_id) {
- case PCI_DEVICE_ID_ARECA_1110:
- case PCI_DEVICE_ID_ARECA_1210:{
- sprintf(buf,
- "ARECA SATA HOST ADAPTER RAID CONTROLLER "
- "\n %s"
- , ARCMSR_DRIVER_VERSION);
- break;
- }
- case PCI_DEVICE_ID_ARECA_1120:
- case PCI_DEVICE_ID_ARECA_1130:
- case PCI_DEVICE_ID_ARECA_1160:
- case PCI_DEVICE_ID_ARECA_1170:
- case PCI_DEVICE_ID_ARECA_1220:
- case PCI_DEVICE_ID_ARECA_1230:
- case PCI_DEVICE_ID_ARECA_1260:
- case PCI_DEVICE_ID_ARECA_1270:
- case PCI_DEVICE_ID_ARECA_1280: {
- sprintf(buf,
- "ARECA SATA HOST ADAPTER RAID CONTROLLER "
- "(RAID6-ENGINE Inside)\n %s"
- , ARCMSR_DRIVER_VERSION);
- break;
- }
- case PCI_DEVICE_ID_ARECA_1380:
- case PCI_DEVICE_ID_ARECA_1381:
- case PCI_DEVICE_ID_ARECA_1680:
- case PCI_DEVICE_ID_ARECA_1681: {
- sprintf(buf,
- "ARECA SAS HOST ADAPTER RAID CONTROLLER "
- "(RAID6-ENGINE Inside)\n %s"
- , ARCMSR_DRIVER_VERSION);
- break;
- }
- default: {
- sprintf(buf,
- "ARECA X-TYPE HOST ADAPTER RAID CONTROLLER "
- "(RAID6-ENGINE Inside)\n %s"
- , ARCMSR_DRIVER_VERSION);
- break;
- }
- }
- return buf;
-}
^ permalink raw reply [flat|nested] 7+ messages in thread