From: James Smart <James.Smart@Emulex.Com>
To: linux-scsi <linux-scsi@vger.kernel.org>
Subject: [PATCH 8/17] lpfc 8.3.2 : Addition of SLI4 Interface - Base Support - Part 5 of 6
Date: Fri, 22 May 2009 14:52:19 -0400 [thread overview]
Message-ID: <1243018339.7729.53.camel@ogier> (raw)
Addition of SLI4 Interface - Base Support - Part 5 of 6
Adds new hardware and interface definitions.
Adds new interface routines - utilizing the reorganized layout of the
driver. Adds SLI-4 specific functions for attachment, initialization,
teardown, etc.
Signed-off-by: James Smart <james.smart@emulex.com>
---
lpfc_init.c | 2879 +++++++++++++++++++++++++++++++++++++++++++++++++++++++-----
1 file changed, 2647 insertions(+), 232 deletions(-)
diff -upNr a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
--- a/drivers/scsi/lpfc/lpfc_init.c 2009-05-22 13:16:55.000000000 -0400
+++ b/drivers/scsi/lpfc/lpfc_init.c 2009-05-22 13:17:16.000000000 -0400
@@ -4454,340 +4454,2755 @@ lpfc_sli_pci_mem_unset(struct lpfc_hba *
}
/**
- * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
+ * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
* @phba: pointer to lpfc hba data structure.
*
- * This routine is invoked to enable the MSI-X interrupt vectors to device
- * with SLI-3 interface specs. The kernel function pci_enable_msix() is
- * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
- * invoked, enables either all or nothing, depending on the current
- * availability of PCI vector resources. The device driver is responsible
- * for calling the individual request_irq() to register each MSI-X vector
- * with a interrupt handler, which is done in this function. Note that
- * later when device is unloading, the driver should always call free_irq()
- * on all MSI-X vectors it has done request_irq() on before calling
- * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
- * will be left with MSI-X enabled and leaks its vectors.
+ * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
+ * done and check status.
*
- * Return codes
- * 0 - sucessful
- * other values - error
+ * Return 0 if successful, otherwise -ENODEV.
**/
-static int
-lpfc_sli_enable_msix(struct lpfc_hba *phba)
+int
+lpfc_sli4_post_status_check(struct lpfc_hba *phba)
{
- int rc, i;
- LPFC_MBOXQ_t *pmb;
-
- /* Set up MSI-X multi-message vectors */
- for (i = 0; i < LPFC_MSIX_VECTORS; i++)
- phba->msix_entries[i].entry = i;
+ struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg, scratchpad;
+ uint32_t onlnreg0, onlnreg1;
+ int i, port_error = -ENODEV;
- /* Configure MSI-X capability structure */
- rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
- ARRAY_SIZE(phba->msix_entries));
- if (rc) {
- lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
- "0420 PCI enable MSI-X failed (%d)\n", rc);
- goto msi_fail_out;
- }
- for (i = 0; i < LPFC_MSIX_VECTORS; i++)
- lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
- "0477 MSI-X entry[%d]: vector=x%x "
- "message=%d\n", i,
- phba->msix_entries[i].vector,
- phba->msix_entries[i].entry);
- /*
- * Assign MSI-X vectors to interrupt handlers
- */
+ if (!phba->sli4_hba.STAregaddr)
+ return -ENODEV;
- /* vector-0 is associated to slow-path handler */
- rc = request_irq(phba->msix_entries[0].vector,
- &lpfc_sli_sp_intr_handler, IRQF_SHARED,
- LPFC_SP_DRIVER_HANDLER_NAME, phba);
- if (rc) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
- "0421 MSI-X slow-path request_irq failed "
- "(%d)\n", rc);
- goto msi_fail_out;
+ /* With uncoverable error, log the error message and return error */
+ onlnreg0 = readl(phba->sli4_hba.ONLINE0regaddr);
+ onlnreg1 = readl(phba->sli4_hba.ONLINE1regaddr);
+ if ((onlnreg0 != LPFC_ONLINE_NERR) || (onlnreg1 != LPFC_ONLINE_NERR)) {
+ uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr);
+ uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr);
+ if (uerrlo_reg.word0 || uerrhi_reg.word0) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1422 HBA Unrecoverable error: "
+ "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
+ "online0_reg=0x%x, online1_reg=0x%x\n",
+ uerrlo_reg.word0, uerrhi_reg.word0,
+ onlnreg0, onlnreg1);
+ }
+ return -ENODEV;
}
- /* vector-1 is associated to fast-path handler */
- rc = request_irq(phba->msix_entries[1].vector,
- &lpfc_sli_fp_intr_handler, IRQF_SHARED,
- LPFC_FP_DRIVER_HANDLER_NAME, phba);
-
- if (rc) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
- "0429 MSI-X fast-path request_irq failed "
- "(%d)\n", rc);
- goto irq_fail_out;
+ /* Wait up to 30 seconds for the SLI Port POST done and ready */
+ for (i = 0; i < 3000; i++) {
+ sta_reg.word0 = readl(phba->sli4_hba.STAregaddr);
+ /* Encounter fatal POST error, break out */
+ if (bf_get(lpfc_hst_state_perr, &sta_reg)) {
+ port_error = -ENODEV;
+ break;
+ }
+ if (LPFC_POST_STAGE_ARMFW_READY ==
+ bf_get(lpfc_hst_state_port_status, &sta_reg)) {
+ port_error = 0;
+ break;
+ }
+ msleep(10);
}
- /*
- * Configure HBA MSI-X attention conditions to messages
- */
- pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
-
- if (!pmb) {
- rc = -ENOMEM;
+ if (port_error)
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
- "0474 Unable to allocate memory for issuing "
- "MBOX_CONFIG_MSI command\n");
- goto mem_fail_out;
- }
- rc = lpfc_config_msi(phba, pmb);
- if (rc)
- goto mbx_fail_out;
- rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
- if (rc != MBX_SUCCESS) {
- lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
- "0351 Config MSI mailbox command failed, "
- "mbxCmd x%x, mbxStatus x%x\n",
- pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
- goto mbx_fail_out;
- }
-
- /* Free memory allocated for mailbox command */
- mempool_free(pmb, phba->mbox_mem_pool);
- return rc;
-
-mbx_fail_out:
- /* Free memory allocated for mailbox command */
- mempool_free(pmb, phba->mbox_mem_pool);
-
-mem_fail_out:
- /* free the irq already requested */
- free_irq(phba->msix_entries[1].vector, phba);
+ "1408 Failure HBA POST Status: sta_reg=0x%x, "
+ "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, "
+ "dl=x%x, pstatus=x%x\n", sta_reg.word0,
+ bf_get(lpfc_hst_state_perr, &sta_reg),
+ bf_get(lpfc_hst_state_sfi, &sta_reg),
+ bf_get(lpfc_hst_state_nip, &sta_reg),
+ bf_get(lpfc_hst_state_ipc, &sta_reg),
+ bf_get(lpfc_hst_state_xrom, &sta_reg),
+ bf_get(lpfc_hst_state_dl, &sta_reg),
+ bf_get(lpfc_hst_state_port_status, &sta_reg));
-irq_fail_out:
- /* free the irq already requested */
- free_irq(phba->msix_entries[0].vector, phba);
+ /* Log device information */
+ scratchpad.word0 = readl(phba->sli4_hba.SCRATCHPADregaddr);
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2534 Device Info: ChipType=0x%x, SliRev=0x%x, "
+ "FeatureL1=0x%x, FeatureL2=0x%x\n",
+ bf_get(lpfc_scratchpad_chiptype, &scratchpad),
+ bf_get(lpfc_scratchpad_slirev, &scratchpad),
+ bf_get(lpfc_scratchpad_featurelevel1, &scratchpad),
+ bf_get(lpfc_scratchpad_featurelevel2, &scratchpad));
-msi_fail_out:
- /* Unconfigure MSI-X capability structure */
- pci_disable_msix(phba->pcidev);
- return rc;
+ return port_error;
}
/**
- * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
+ * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
* @phba: pointer to lpfc hba data structure.
*
- * This routine is invoked to release the MSI-X vectors and then disable the
- * MSI-X interrupt mode to device with SLI-3 interface spec.
+ * This routine is invoked to set up SLI4 BAR0 PCI config space register
+ * memory map.
**/
static void
-lpfc_sli_disable_msix(struct lpfc_hba *phba)
+lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba)
{
- int i;
+ phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_UERR_STATUS_LO;
+ phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_UERR_STATUS_HI;
+ phba->sli4_hba.ONLINE0regaddr = phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_ONLINE0;
+ phba->sli4_hba.ONLINE1regaddr = phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_ONLINE1;
+ phba->sli4_hba.SCRATCHPADregaddr = phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_SCRATCHPAD;
+}
- /* Free up MSI-X multi-message vectors */
- for (i = 0; i < LPFC_MSIX_VECTORS; i++)
- free_irq(phba->msix_entries[i].vector, phba);
- /* Disable MSI-X */
- pci_disable_msix(phba->pcidev);
+/**
+ * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
+ * memory map.
+ **/
+static void
+lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
+{
+ phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
+ LPFC_HST_STATE;
+ phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
+ LPFC_HST_ISR0;
+ phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
+ LPFC_HST_IMR0;
+ phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
+ LPFC_HST_ISCR0;
return;
}
/**
- * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
+ * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
* @phba: pointer to lpfc hba data structure.
+ * @vf: virtual function number
*
- * This routine is invoked to enable the MSI interrupt mode to device with
- * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
- * enable the MSI vector. The device driver is responsible for calling the
- * request_irq() to register MSI vector with a interrupt the handler, which
- * is done in this function.
+ * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
+ * based on the given viftual function number, @vf.
+ *
+ * Return 0 if successful, otherwise -ENODEV.
+ **/
+static int
+lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
+{
+ if (vf > LPFC_VIR_FUNC_MAX)
+ return -ENODEV;
+
+ phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
+ vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
+ phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
+ vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
+ phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
+ vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
+ phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
+ vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
+ phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
+ vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
+ return 0;
+}
+
+/**
+ * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to create the bootstrap mailbox
+ * region consistent with the SLI-4 interface spec. This
+ * routine allocates all memory necessary to communicate
+ * mailbox commands to the port and sets up all alignment
+ * needs. No locks are expected to be held when calling
+ * this routine.
*
* Return codes
* 0 - sucessful
- * other values - error
- */
+ * ENOMEM - could not allocated memory.
+ **/
static int
-lpfc_sli_enable_msi(struct lpfc_hba *phba)
+lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
{
- int rc;
+ uint32_t bmbx_size;
+ struct lpfc_dmabuf *dmabuf;
+ struct dma_address *dma_address;
+ uint32_t pa_addr;
+ uint64_t phys_addr;
- rc = pci_enable_msi(phba->pcidev);
- if (!rc)
- lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
- "0462 PCI enable MSI mode success.\n");
- else {
- lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
- "0471 PCI enable MSI mode failed (%d)\n", rc);
- return rc;
- }
+ dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
+ if (!dmabuf)
+ return -ENOMEM;
- rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
- IRQF_SHARED, LPFC_DRIVER_NAME, phba);
- if (rc) {
- pci_disable_msi(phba->pcidev);
- lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
- "0478 MSI request_irq failed (%d)\n", rc);
+ /*
+ * The bootstrap mailbox region is comprised of 2 parts
+ * plus an alignment restriction of 16 bytes.
+ */
+ bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
+ dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
+ bmbx_size,
+ &dmabuf->phys,
+ GFP_KERNEL);
+ if (!dmabuf->virt) {
+ kfree(dmabuf);
+ return -ENOMEM;
}
- return rc;
+ memset(dmabuf->virt, 0, bmbx_size);
+
+ /*
+ * Initialize the bootstrap mailbox pointers now so that the register
+ * operations are simple later. The mailbox dma address is required
+ * to be 16-byte aligned. Also align the virtual memory as each
+ * maibox is copied into the bmbx mailbox region before issuing the
+ * command to the port.
+ */
+ phba->sli4_hba.bmbx.dmabuf = dmabuf;
+ phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
+
+ phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
+ LPFC_ALIGN_16_BYTE);
+ phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
+ LPFC_ALIGN_16_BYTE);
+
+ /*
+ * Set the high and low physical addresses now. The SLI4 alignment
+ * requirement is 16 bytes and the mailbox is posted to the port
+ * as two 30-bit addresses. The other data is a bit marking whether
+ * the 30-bit address is the high or low address.
+ * Upcast bmbx aphys to 64bits so shift instruction compiles
+ * clean on 32 bit machines.
+ */
+ dma_address = &phba->sli4_hba.bmbx.dma_address;
+ phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
+ pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
+ dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
+ LPFC_BMBX_BIT1_ADDR_HI);
+
+ pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
+ dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
+ LPFC_BMBX_BIT1_ADDR_LO);
+ return 0;
}
/**
- * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
+ * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
* @phba: pointer to lpfc hba data structure.
*
- * This routine is invoked to disable the MSI interrupt mode to device with
- * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
- * done request_irq() on before calling pci_disable_msi(). Failure to do so
- * results in a BUG_ON() and a device will be left with MSI enabled and leaks
- * its vector.
- */
+ * This routine is invoked to teardown the bootstrap mailbox
+ * region and release all host resources. This routine requires
+ * the caller to ensure all mailbox commands recovered, no
+ * additional mailbox comands are sent, and interrupts are disabled
+ * before calling this routine.
+ *
+ **/
static void
-lpfc_sli_disable_msi(struct lpfc_hba *phba)
+lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
{
- free_irq(phba->pcidev->irq, phba);
- pci_disable_msi(phba->pcidev);
- return;
+ dma_free_coherent(&phba->pcidev->dev,
+ phba->sli4_hba.bmbx.bmbx_size,
+ phba->sli4_hba.bmbx.dmabuf->virt,
+ phba->sli4_hba.bmbx.dmabuf->phys);
+
+ kfree(phba->sli4_hba.bmbx.dmabuf);
+ memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
}
/**
- * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
+ * lpfc_sli4_read_config - Get the config parameters.
* @phba: pointer to lpfc hba data structure.
*
- * This routine is invoked to enable device interrupt and associate driver's
- * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
- * spec. Depends on the interrupt mode configured to the driver, the driver
- * will try to fallback from the configured interrupt mode to an interrupt
- * mode which is supported by the platform, kernel, and device in the order
- * of:
- * MSI-X -> MSI -> IRQ.
+ * This routine is invoked to read the configuration parameters from the HBA.
+ * The configuration parameters are used to set the base and maximum values
+ * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
+ * allocation for the port.
*
* Return codes
- * 0 - sucessful
- * other values - error
+ * 0 - sucessful
+ * ENOMEM - No availble memory
+ * EIO - The mailbox failed to complete successfully.
**/
-static uint32_t
-lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
+static int
+lpfc_sli4_read_config(struct lpfc_hba *phba)
{
- uint32_t intr_mode = LPFC_INTR_ERROR;
- int retval;
+ LPFC_MBOXQ_t *pmb;
+ struct lpfc_mbx_read_config *rd_config;
+ uint32_t rc = 0;
- if (cfg_mode == 2) {
- /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
- retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
- if (!retval) {
- /* Now, try to enable MSI-X interrupt mode */
- retval = lpfc_sli_enable_msix(phba);
- if (!retval) {
- /* Indicate initialization to MSI-X mode */
- phba->intr_type = MSIX;
- intr_mode = 2;
- }
- }
+ pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!pmb) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2011 Unable to allocate memory for issuing "
+ "SLI_CONFIG_SPECIAL mailbox command\n");
+ return -ENOMEM;
}
- /* Fallback to MSI if MSI-X initialization failed */
- if (cfg_mode >= 1 && phba->intr_type == NONE) {
- retval = lpfc_sli_enable_msi(phba);
- if (!retval) {
- /* Indicate initialization to MSI mode */
- phba->intr_type = MSI;
- intr_mode = 1;
- }
- }
+ lpfc_read_config(phba, pmb);
- /* Fallback to INTx if both MSI-X/MSI initalization failed */
- if (phba->intr_type == NONE) {
- retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
- IRQF_SHARED, LPFC_DRIVER_NAME, phba);
- if (!retval) {
- /* Indicate initialization to INTx mode */
- phba->intr_type = INTx;
- intr_mode = 0;
- }
+ rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
+ if (rc != MBX_SUCCESS) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2012 Mailbox failed , mbxCmd x%x "
+ "READ_CONFIG, mbxStatus x%x\n",
+ bf_get(lpfc_mqe_command, &pmb->u.mqe),
+ bf_get(lpfc_mqe_status, &pmb->u.mqe));
+ rc = -EIO;
+ } else {
+ rd_config = &pmb->u.mqe.un.rd_config;
+ phba->sli4_hba.max_cfg_param.max_xri =
+ bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
+ phba->sli4_hba.max_cfg_param.xri_base =
+ bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
+ phba->sli4_hba.max_cfg_param.max_vpi =
+ bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
+ phba->sli4_hba.max_cfg_param.vpi_base =
+ bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
+ phba->sli4_hba.max_cfg_param.max_rpi =
+ bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
+ phba->sli4_hba.max_cfg_param.rpi_base =
+ bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
+ phba->sli4_hba.max_cfg_param.max_vfi =
+ bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
+ phba->sli4_hba.max_cfg_param.vfi_base =
+ bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
+ phba->sli4_hba.max_cfg_param.max_fcfi =
+ bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
+ phba->sli4_hba.max_cfg_param.fcfi_base =
+ bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config);
+ phba->sli4_hba.max_cfg_param.max_eq =
+ bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
+ phba->sli4_hba.max_cfg_param.max_rq =
+ bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
+ phba->sli4_hba.max_cfg_param.max_wq =
+ bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
+ phba->sli4_hba.max_cfg_param.max_cq =
+ bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
+ phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
+ phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
+ phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
+ phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
+ phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
+ phba->max_vpi = phba->sli4_hba.max_cfg_param.max_vpi;
+ phba->max_vports = phba->max_vpi;
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "2003 cfg params XRI(B:%d M:%d), "
+ "VPI(B:%d M:%d) "
+ "VFI(B:%d M:%d) "
+ "RPI(B:%d M:%d) "
+ "FCFI(B:%d M:%d)\n",
+ phba->sli4_hba.max_cfg_param.xri_base,
+ phba->sli4_hba.max_cfg_param.max_xri,
+ phba->sli4_hba.max_cfg_param.vpi_base,
+ phba->sli4_hba.max_cfg_param.max_vpi,
+ phba->sli4_hba.max_cfg_param.vfi_base,
+ phba->sli4_hba.max_cfg_param.max_vfi,
+ phba->sli4_hba.max_cfg_param.rpi_base,
+ phba->sli4_hba.max_cfg_param.max_rpi,
+ phba->sli4_hba.max_cfg_param.fcfi_base,
+ phba->sli4_hba.max_cfg_param.max_fcfi);
}
- return intr_mode;
+ mempool_free(pmb, phba->mbox_mem_pool);
+
+ /* Reset the DFT_HBA_Q_DEPTH to the max xri */
+ if (phba->cfg_hba_queue_depth > (phba->sli4_hba.max_cfg_param.max_xri))
+ phba->cfg_hba_queue_depth =
+ phba->sli4_hba.max_cfg_param.max_xri;
+ return rc;
}
/**
- * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
+ * lpfc_dev_endian_order_setup - Notify the port of the host's endian order.
* @phba: pointer to lpfc hba data structure.
*
- * This routine is invoked to disable device interrupt and disassociate the
- * driver's interrupt handler(s) from interrupt vector(s) to device with
- * SLI-3 interface spec. Depending on the interrupt mode, the driver will
- * release the interrupt vector(s) for the message signaled interrupt.
+ * This routine is invoked to setup the host-side endian order to the
+ * HBA consistent with the SLI-4 interface spec.
+ *
+ * Return codes
+ * 0 - sucessful
+ * ENOMEM - No availble memory
+ * EIO - The mailbox failed to complete successfully.
**/
-static void
+static int
+lpfc_setup_endian_order(struct lpfc_hba *phba)
+{
+ LPFC_MBOXQ_t *mboxq;
+ uint32_t rc = 0;
+ uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
+ HOST_ENDIAN_HIGH_WORD1};
+
+ mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mboxq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0492 Unable to allocate memory for issuing "
+ "SLI_CONFIG_SPECIAL mailbox command\n");
+ return -ENOMEM;
+ }
+
+ /*
+ * The SLI4_CONFIG_SPECIAL mailbox command requires the first two
+ * words to contain special data values and no other data.
+ */
+ memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
+ memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
+ if (rc != MBX_SUCCESS) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0493 SLI_CONFIG_SPECIAL mailbox failed with "
+ "status x%x\n",
+ rc);
+ rc = -EIO;
+ }
+
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ return rc;
+}
+
+/**
+ * lpfc_sli4_queue_create - Create all the SLI4 queues
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
+ * operation. For each SLI4 queue type, the parameters such as queue entry
+ * count (queue depth) shall be taken from the module parameter. For now,
+ * we just use some constant number as place holder.
+ *
+ * Return codes
+ * 0 - sucessful
+ * ENOMEM - No availble memory
+ * EIO - The mailbox failed to complete successfully.
+ **/
+static int
+lpfc_sli4_queue_create(struct lpfc_hba *phba)
+{
+ struct lpfc_queue *qdesc;
+ int fcp_eqidx, fcp_cqidx, fcp_wqidx;
+ int cfg_fcp_wq_count;
+ int cfg_fcp_eq_count;
+
+ /*
+ * Sanity check for confiugred queue parameters against the run-time
+ * device parameters
+ */
+
+ /* Sanity check on FCP fast-path WQ parameters */
+ cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
+ if (cfg_fcp_wq_count >
+ (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
+ cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
+ LPFC_SP_WQN_DEF;
+ if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2581 Not enough WQs (%d) from "
+ "the pci function for supporting "
+ "FCP WQs (%d)\n",
+ phba->sli4_hba.max_cfg_param.max_wq,
+ phba->cfg_fcp_wq_count);
+ goto out_error;
+ }
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "2582 Not enough WQs (%d) from the pci "
+ "function for supporting the requested "
+ "FCP WQs (%d), the actual FCP WQs can "
+ "be supported: %d\n",
+ phba->sli4_hba.max_cfg_param.max_wq,
+ phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
+ }
+ /* The actual number of FCP work queues adopted */
+ phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
+
+ /* Sanity check on FCP fast-path EQ parameters */
+ cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
+ if (cfg_fcp_eq_count >
+ (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
+ cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
+ LPFC_SP_EQN_DEF;
+ if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2574 Not enough EQs (%d) from the "
+ "pci function for supporting FCP "
+ "EQs (%d)\n",
+ phba->sli4_hba.max_cfg_param.max_eq,
+ phba->cfg_fcp_eq_count);
+ goto out_error;
+ }
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "2575 Not enough EQs (%d) from the pci "
+ "function for supporting the requested "
+ "FCP EQs (%d), the actual FCP EQs can "
+ "be supported: %d\n",
+ phba->sli4_hba.max_cfg_param.max_eq,
+ phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
+ }
+ /* It does not make sense to have more EQs than WQs */
+ if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "2593 The number of FCP EQs (%d) is more "
+ "than the number of FCP WQs (%d), take "
+ "the number of FCP EQs same as than of "
+ "WQs (%d)\n", cfg_fcp_eq_count,
+ phba->cfg_fcp_wq_count,
+ phba->cfg_fcp_wq_count);
+ cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
+ }
+ /* The actual number of FCP event queues adopted */
+ phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
+ /* The overall number of event queues used */
+ phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
+
+ /*
+ * Create Event Queues (EQs)
+ */
+
+ /* Get EQ depth from module parameter, fake the default for now */
+ phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
+ phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
+
+ /* Create slow path event queue */
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
+ phba->sli4_hba.eq_ecount);
+ if (!qdesc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0496 Failed allocate slow-path EQ\n");
+ goto out_error;
+ }
+ phba->sli4_hba.sp_eq = qdesc;
+
+ /* Create fast-path FCP Event Queue(s) */
+ phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
+ phba->cfg_fcp_eq_count), GFP_KERNEL);
+ if (!phba->sli4_hba.fp_eq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2576 Failed allocate memory for fast-path "
+ "EQ record array\n");
+ goto out_free_sp_eq;
+ }
+ for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
+ phba->sli4_hba.eq_ecount);
+ if (!qdesc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0497 Failed allocate fast-path EQ\n");
+ goto out_free_fp_eq;
+ }
+ phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
+ }
+
+ /*
+ * Create Complete Queues (CQs)
+ */
+
+ /* Get CQ depth from module parameter, fake the default for now */
+ phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
+ phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
+
+ /* Create slow-path Mailbox Command Complete Queue */
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
+ phba->sli4_hba.cq_ecount);
+ if (!qdesc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0500 Failed allocate slow-path mailbox CQ\n");
+ goto out_free_fp_eq;
+ }
+ phba->sli4_hba.mbx_cq = qdesc;
+
+ /* Create slow-path ELS Complete Queue */
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
+ phba->sli4_hba.cq_ecount);
+ if (!qdesc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0501 Failed allocate slow-path ELS CQ\n");
+ goto out_free_mbx_cq;
+ }
+ phba->sli4_hba.els_cq = qdesc;
+
+ /* Create slow-path Unsolicited Receive Complete Queue */
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
+ phba->sli4_hba.cq_ecount);
+ if (!qdesc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0502 Failed allocate slow-path USOL RX CQ\n");
+ goto out_free_els_cq;
+ }
+ phba->sli4_hba.rxq_cq = qdesc;
+
+ /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
+ phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
+ phba->cfg_fcp_eq_count), GFP_KERNEL);
+ if (!phba->sli4_hba.fcp_cq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2577 Failed allocate memory for fast-path "
+ "CQ record array\n");
+ goto out_free_rxq_cq;
+ }
+ for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
+ phba->sli4_hba.cq_ecount);
+ if (!qdesc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0499 Failed allocate fast-path FCP "
+ "CQ (%d)\n", fcp_cqidx);
+ goto out_free_fcp_cq;
+ }
+ phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
+ }
+
+ /* Create Mailbox Command Queue */
+ phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
+ phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
+
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
+ phba->sli4_hba.mq_ecount);
+ if (!qdesc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0505 Failed allocate slow-path MQ\n");
+ goto out_free_fcp_cq;
+ }
+ phba->sli4_hba.mbx_wq = qdesc;
+
+ /*
+ * Create all the Work Queues (WQs)
+ */
+ phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
+ phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
+
+ /* Create slow-path ELS Work Queue */
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
+ phba->sli4_hba.wq_ecount);
+ if (!qdesc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0504 Failed allocate slow-path ELS WQ\n");
+ goto out_free_mbx_wq;
+ }
+ phba->sli4_hba.els_wq = qdesc;
+
+ /* Create fast-path FCP Work Queue(s) */
+ phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
+ phba->cfg_fcp_wq_count), GFP_KERNEL);
+ if (!phba->sli4_hba.fcp_wq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2578 Failed allocate memory for fast-path "
+ "WQ record array\n");
+ goto out_free_els_wq;
+ }
+ for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
+ phba->sli4_hba.wq_ecount);
+ if (!qdesc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0503 Failed allocate fast-path FCP "
+ "WQ (%d)\n", fcp_wqidx);
+ goto out_free_fcp_wq;
+ }
+ phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
+ }
+
+ /*
+ * Create Receive Queue (RQ)
+ */
+ phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
+ phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
+
+ /* Create Receive Queue for header */
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
+ phba->sli4_hba.rq_ecount);
+ if (!qdesc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0506 Failed allocate receive HRQ\n");
+ goto out_free_fcp_wq;
+ }
+ phba->sli4_hba.hdr_rq = qdesc;
+
+ /* Create Receive Queue for data */
+ qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
+ phba->sli4_hba.rq_ecount);
+ if (!qdesc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0507 Failed allocate receive DRQ\n");
+ goto out_free_hdr_rq;
+ }
+ phba->sli4_hba.dat_rq = qdesc;
+
+ return 0;
+
+out_free_hdr_rq:
+ lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
+ phba->sli4_hba.hdr_rq = NULL;
+out_free_fcp_wq:
+ for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
+ lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
+ phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
+ }
+ kfree(phba->sli4_hba.fcp_wq);
+out_free_els_wq:
+ lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
+ phba->sli4_hba.els_wq = NULL;
+out_free_mbx_wq:
+ lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
+ phba->sli4_hba.mbx_wq = NULL;
+out_free_fcp_cq:
+ for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
+ lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
+ phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
+ }
+ kfree(phba->sli4_hba.fcp_cq);
+out_free_rxq_cq:
+ lpfc_sli4_queue_free(phba->sli4_hba.rxq_cq);
+ phba->sli4_hba.rxq_cq = NULL;
+out_free_els_cq:
+ lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
+ phba->sli4_hba.els_cq = NULL;
+out_free_mbx_cq:
+ lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
+ phba->sli4_hba.mbx_cq = NULL;
+out_free_fp_eq:
+ for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
+ lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
+ phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
+ }
+ kfree(phba->sli4_hba.fp_eq);
+out_free_sp_eq:
+ lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
+ phba->sli4_hba.sp_eq = NULL;
+out_error:
+ return -ENOMEM;
+}
+
+/**
+ * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to release all the SLI4 queues with the FCoE HBA
+ * operation.
+ *
+ * Return codes
+ * 0 - sucessful
+ * ENOMEM - No availble memory
+ * EIO - The mailbox failed to complete successfully.
+ **/
+static void
+lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
+{
+ int fcp_qidx;
+
+ /* Release mailbox command work queue */
+ lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
+ phba->sli4_hba.mbx_wq = NULL;
+
+ /* Release ELS work queue */
+ lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
+ phba->sli4_hba.els_wq = NULL;
+
+ /* Release FCP work queue */
+ for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
+ lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
+ kfree(phba->sli4_hba.fcp_wq);
+ phba->sli4_hba.fcp_wq = NULL;
+
+ /* Release unsolicited receive queue */
+ lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
+ phba->sli4_hba.hdr_rq = NULL;
+ lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
+ phba->sli4_hba.dat_rq = NULL;
+
+ /* Release unsolicited receive complete queue */
+ lpfc_sli4_queue_free(phba->sli4_hba.rxq_cq);
+ phba->sli4_hba.rxq_cq = NULL;
+
+ /* Release ELS complete queue */
+ lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
+ phba->sli4_hba.els_cq = NULL;
+
+ /* Release mailbox command complete queue */
+ lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
+ phba->sli4_hba.mbx_cq = NULL;
+
+ /* Release FCP response complete queue */
+ for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
+ lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
+ kfree(phba->sli4_hba.fcp_cq);
+ phba->sli4_hba.fcp_cq = NULL;
+
+ /* Release fast-path event queue */
+ for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
+ lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
+ kfree(phba->sli4_hba.fp_eq);
+ phba->sli4_hba.fp_eq = NULL;
+
+ /* Release slow-path event queue */
+ lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
+ phba->sli4_hba.sp_eq = NULL;
+
+ return;
+}
+
+/**
+ * lpfc_sli4_queue_setup - Set up all the SLI4 queues
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
+ * operation.
+ *
+ * Return codes
+ * 0 - sucessful
+ * ENOMEM - No availble memory
+ * EIO - The mailbox failed to complete successfully.
+ **/
+int
+lpfc_sli4_queue_setup(struct lpfc_hba *phba)
+{
+ int rc = -ENOMEM;
+ int fcp_eqidx, fcp_cqidx, fcp_wqidx;
+ int fcp_cq_index = 0;
+
+ /*
+ * Set up Event Queues (EQs)
+ */
+
+ /* Set up slow-path event queue */
+ if (!phba->sli4_hba.sp_eq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0520 Slow-path EQ not allocated\n");
+ goto out_error;
+ }
+ rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
+ LPFC_SP_DEF_IMAX);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0521 Failed setup of slow-path EQ: "
+ "rc = 0x%x\n", rc);
+ goto out_error;
+ }
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2583 Slow-path EQ setup: queue-id=%d\n",
+ phba->sli4_hba.sp_eq->queue_id);
+
+ /* Set up fast-path event queue */
+ for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
+ if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0522 Fast-path EQ (%d) not "
+ "allocated\n", fcp_eqidx);
+ goto out_destroy_fp_eq;
+ }
+ rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
+ phba->cfg_fcp_imax);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0523 Failed setup of fast-path EQ "
+ "(%d), rc = 0x%x\n", fcp_eqidx, rc);
+ goto out_destroy_fp_eq;
+ }
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2584 Fast-path EQ setup: "
+ "queue[%d]-id=%d\n", fcp_eqidx,
+ phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
+ }
+
+ /*
+ * Set up Complete Queues (CQs)
+ */
+
+ /* Set up slow-path MBOX Complete Queue as the first CQ */
+ if (!phba->sli4_hba.mbx_cq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0528 Mailbox CQ not allocated\n");
+ goto out_destroy_fp_eq;
+ }
+ rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
+ LPFC_MCQ, LPFC_MBOX);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0529 Failed setup of slow-path mailbox CQ: "
+ "rc = 0x%x\n", rc);
+ goto out_destroy_fp_eq;
+ }
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
+ phba->sli4_hba.mbx_cq->queue_id,
+ phba->sli4_hba.sp_eq->queue_id);
+
+ /* Set up slow-path ELS Complete Queue */
+ if (!phba->sli4_hba.els_cq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0530 ELS CQ not allocated\n");
+ goto out_destroy_mbx_cq;
+ }
+ rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
+ LPFC_WCQ, LPFC_ELS);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0531 Failed setup of slow-path ELS CQ: "
+ "rc = 0x%x\n", rc);
+ goto out_destroy_mbx_cq;
+ }
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
+ phba->sli4_hba.els_cq->queue_id,
+ phba->sli4_hba.sp_eq->queue_id);
+
+ /* Set up slow-path Unsolicited Receive Complete Queue */
+ if (!phba->sli4_hba.rxq_cq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0532 USOL RX CQ not allocated\n");
+ goto out_destroy_els_cq;
+ }
+ rc = lpfc_cq_create(phba, phba->sli4_hba.rxq_cq, phba->sli4_hba.sp_eq,
+ LPFC_RCQ, LPFC_USOL);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0533 Failed setup of slow-path USOL RX CQ: "
+ "rc = 0x%x\n", rc);
+ goto out_destroy_els_cq;
+ }
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2587 USL CQ setup: cq-id=%d, parent eq-id=%d\n",
+ phba->sli4_hba.rxq_cq->queue_id,
+ phba->sli4_hba.sp_eq->queue_id);
+
+ /* Set up fast-path FCP Response Complete Queue */
+ for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
+ if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0526 Fast-path FCP CQ (%d) not "
+ "allocated\n", fcp_cqidx);
+ goto out_destroy_fcp_cq;
+ }
+ rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
+ phba->sli4_hba.fp_eq[fcp_cqidx],
+ LPFC_WCQ, LPFC_FCP);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0527 Failed setup of fast-path FCP "
+ "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
+ goto out_destroy_fcp_cq;
+ }
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2588 FCP CQ setup: cq[%d]-id=%d, "
+ "parent eq[%d]-id=%d\n",
+ fcp_cqidx,
+ phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
+ fcp_cqidx,
+ phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id);
+ }
+
+ /*
+ * Set up all the Work Queues (WQs)
+ */
+
+ /* Set up Mailbox Command Queue */
+ if (!phba->sli4_hba.mbx_wq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0538 Slow-path MQ not allocated\n");
+ goto out_destroy_fcp_cq;
+ }
+ rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
+ phba->sli4_hba.mbx_cq, LPFC_MBOX);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0539 Failed setup of slow-path MQ: "
+ "rc = 0x%x\n", rc);
+ goto out_destroy_fcp_cq;
+ }
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
+ phba->sli4_hba.mbx_wq->queue_id,
+ phba->sli4_hba.mbx_cq->queue_id);
+
+ /* Set up slow-path ELS Work Queue */
+ if (!phba->sli4_hba.els_wq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0536 Slow-path ELS WQ not allocated\n");
+ goto out_destroy_mbx_wq;
+ }
+ rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
+ phba->sli4_hba.els_cq, LPFC_ELS);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0537 Failed setup of slow-path ELS WQ: "
+ "rc = 0x%x\n", rc);
+ goto out_destroy_mbx_wq;
+ }
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
+ phba->sli4_hba.els_wq->queue_id,
+ phba->sli4_hba.els_cq->queue_id);
+
+ /* Set up fast-path FCP Work Queue */
+ for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
+ if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0534 Fast-path FCP WQ (%d) not "
+ "allocated\n", fcp_wqidx);
+ goto out_destroy_fcp_wq;
+ }
+ rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
+ phba->sli4_hba.fcp_cq[fcp_cq_index],
+ LPFC_FCP);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0535 Failed setup of fast-path FCP "
+ "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
+ goto out_destroy_fcp_wq;
+ }
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2591 FCP WQ setup: wq[%d]-id=%d, "
+ "parent cq[%d]-id=%d\n",
+ fcp_wqidx,
+ phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
+ fcp_cq_index,
+ phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
+ /* Round robin FCP Work Queue's Completion Queue assignment */
+ fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count);
+ }
+
+ /*
+ * Create Receive Queue (RQ)
+ */
+ if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0540 Receive Queue not allocated\n");
+ goto out_destroy_fcp_wq;
+ }
+ rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
+ phba->sli4_hba.rxq_cq, LPFC_USOL);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0541 Failed setup of Receive Queue: "
+ "rc = 0x%x\n", rc);
+ goto out_destroy_fcp_wq;
+ }
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
+ "parent cq-id=%d\n",
+ phba->sli4_hba.hdr_rq->queue_id,
+ phba->sli4_hba.dat_rq->queue_id,
+ phba->sli4_hba.rxq_cq->queue_id);
+ return 0;
+
+out_destroy_fcp_wq:
+ for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
+ lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
+ lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
+out_destroy_mbx_wq:
+ lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
+out_destroy_fcp_cq:
+ for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
+ lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
+ lpfc_cq_destroy(phba, phba->sli4_hba.rxq_cq);
+out_destroy_els_cq:
+ lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
+out_destroy_mbx_cq:
+ lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
+out_destroy_fp_eq:
+ for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
+ lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
+ lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
+out_error:
+ return rc;
+}
+
+/**
+ * lpfc_sli4_queue_unset - Unset all the SLI4 queues
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
+ * operation.
+ *
+ * Return codes
+ * 0 - sucessful
+ * ENOMEM - No availble memory
+ * EIO - The mailbox failed to complete successfully.
+ **/
+void
+lpfc_sli4_queue_unset(struct lpfc_hba *phba)
+{
+ int fcp_qidx;
+
+ /* Unset mailbox command work queue */
+ lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
+ /* Unset ELS work queue */
+ lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
+ /* Unset unsolicited receive queue */
+ lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
+ /* Unset FCP work queue */
+ for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
+ lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
+ /* Unset mailbox command complete queue */
+ lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
+ /* Unset ELS complete queue */
+ lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
+ /* Unset unsolicited receive complete queue */
+ lpfc_cq_destroy(phba, phba->sli4_hba.rxq_cq);
+ /* Unset FCP response complete queue */
+ for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
+ lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
+ /* Unset fast-path event queue */
+ for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
+ lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
+ /* Unset slow-path event queue */
+ lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
+}
+
+/**
+ * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to allocate and set up a pool of completion queue
+ * events. The body of the completion queue event is a completion queue entry
+ * CQE. For now, this pool is used for the interrupt service routine to queue
+ * the following HBA completion queue events for the worker thread to process:
+ * - Mailbox asynchronous events
+ * - Receive queue completion unsolicited events
+ * Later, this can be used for all the slow-path events.
+ *
+ * Return codes
+ * 0 - sucessful
+ * -ENOMEM - No availble memory
+ **/
+static int
+lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
+{
+ struct lpfc_cq_event *cq_event;
+ int i;
+
+ for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
+ cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
+ if (!cq_event)
+ goto out_pool_create_fail;
+ list_add_tail(&cq_event->list,
+ &phba->sli4_hba.sp_cqe_event_pool);
+ }
+ return 0;
+
+out_pool_create_fail:
+ lpfc_sli4_cq_event_pool_destroy(phba);
+ return -ENOMEM;
+}
+
+/**
+ * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to free the pool of completion queue events at
+ * driver unload time. Note that, it is the responsibility of the driver
+ * cleanup routine to free all the outstanding completion-queue events
+ * allocated from this pool back into the pool before invoking this routine
+ * to destroy the pool.
+ **/
+static void
+lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
+{
+ struct lpfc_cq_event *cq_event, *next_cq_event;
+
+ list_for_each_entry_safe(cq_event, next_cq_event,
+ &phba->sli4_hba.sp_cqe_event_pool, list) {
+ list_del(&cq_event->list);
+ kfree(cq_event);
+ }
+}
+
+/**
+ * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is the lock free version of the API invoked to allocate a
+ * completion-queue event from the free pool.
+ *
+ * Return: Pointer to the newly allocated completion-queue event if successful
+ * NULL otherwise.
+ **/
+struct lpfc_cq_event *
+__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
+{
+ struct lpfc_cq_event *cq_event = NULL;
+
+ list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
+ struct lpfc_cq_event, list);
+ return cq_event;
+}
+
+/**
+ * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is the lock version of the API invoked to allocate a
+ * completion-queue event from the free pool.
+ *
+ * Return: Pointer to the newly allocated completion-queue event if successful
+ * NULL otherwise.
+ **/
+struct lpfc_cq_event *
+lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
+{
+ struct lpfc_cq_event *cq_event;
+ unsigned long iflags;
+
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ cq_event = __lpfc_sli4_cq_event_alloc(phba);
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+ return cq_event;
+}
+
+/**
+ * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
+ * @phba: pointer to lpfc hba data structure.
+ * @cq_event: pointer to the completion queue event to be freed.
+ *
+ * This routine is the lock free version of the API invoked to release a
+ * completion-queue event back into the free pool.
+ **/
+void
+__lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
+ struct lpfc_cq_event *cq_event)
+{
+ list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
+}
+
+/**
+ * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
+ * @phba: pointer to lpfc hba data structure.
+ * @cq_event: pointer to the completion queue event to be freed.
+ *
+ * This routine is the lock version of the API invoked to release a
+ * completion-queue event back into the free pool.
+ **/
+void
+lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
+ struct lpfc_cq_event *cq_event)
+{
+ unsigned long iflags;
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ __lpfc_sli4_cq_event_release(phba, cq_event);
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+}
+
+/**
+ * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is to free all the pending completion-queue events to the
+ * back into the free pool for device reset.
+ **/
+static void
+lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
+{
+ LIST_HEAD(cqelist);
+ struct lpfc_cq_event *cqe;
+ unsigned long iflags;
+
+ /* Retrieve all the pending WCQEs from pending WCQE lists */
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ /* Pending FCP XRI abort events */
+ list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
+ &cqelist);
+ /* Pending ELS XRI abort events */
+ list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
+ &cqelist);
+ /* Pending asynnc events */
+ list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
+ &cqelist);
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+
+ while (!list_empty(&cqelist)) {
+ list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
+ lpfc_sli4_cq_event_release(phba, cqe);
+ }
+}
+
+/**
+ * lpfc_pci_function_reset - Reset pci function.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to request a PCI function reset. It will destroys
+ * all resources assigned to the PCI function which originates this request.
+ *
+ * Return codes
+ * 0 - sucessful
+ * ENOMEM - No availble memory
+ * EIO - The mailbox failed to complete successfully.
+ **/
+int
+lpfc_pci_function_reset(struct lpfc_hba *phba)
+{
+ LPFC_MBOXQ_t *mboxq;
+ uint32_t rc = 0;
+ uint32_t shdr_status, shdr_add_status;
+ union lpfc_sli4_cfg_shdr *shdr;
+
+ mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mboxq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0494 Unable to allocate memory for issuing "
+ "SLI_FUNCTION_RESET mailbox command\n");
+ return -ENOMEM;
+ }
+
+ /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */
+ lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
+ LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
+ LPFC_SLI4_MBX_EMBED);
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
+ shdr = (union lpfc_sli4_cfg_shdr *)
+ &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+ if (rc != MBX_TIMEOUT)
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ if (shdr_status || shdr_add_status || rc) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0495 SLI_FUNCTION_RESET mailbox failed with "
+ "status x%x add_status x%x, mbx status x%x\n",
+ shdr_status, shdr_add_status, rc);
+ rc = -ENXIO;
+ }
+ return rc;
+}
+
+/**
+ * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
+ * @phba: pointer to lpfc hba data structure.
+ * @cnt: number of nop mailbox commands to send.
+ *
+ * This routine is invoked to send a number @cnt of NOP mailbox command and
+ * wait for each command to complete.
+ *
+ * Return: the number of NOP mailbox command completed.
+ **/
+static int
+lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
+{
+ LPFC_MBOXQ_t *mboxq;
+ int length, cmdsent;
+ uint32_t mbox_tmo;
+ uint32_t rc = 0;
+ uint32_t shdr_status, shdr_add_status;
+ union lpfc_sli4_cfg_shdr *shdr;
+
+ if (cnt == 0) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "2518 Requested to send 0 NOP mailbox cmd\n");
+ return cnt;
+ }
+
+ mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mboxq) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2519 Unable to allocate memory for issuing "
+ "NOP mailbox command\n");
+ return 0;
+ }
+
+ /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
+ length = (sizeof(struct lpfc_mbx_nop) -
+ sizeof(struct lpfc_sli4_cfg_mhdr));
+ lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
+ LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
+
+ mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
+ for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
+ if (!phba->sli4_hba.intr_enable)
+ rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
+ else
+ rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
+ if (rc == MBX_TIMEOUT)
+ break;
+ /* Check return status */
+ shdr = (union lpfc_sli4_cfg_shdr *)
+ &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
+ &shdr->response);
+ if (shdr_status || shdr_add_status || rc) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "2520 NOP mailbox command failed "
+ "status x%x add_status x%x mbx "
+ "status x%x\n", shdr_status,
+ shdr_add_status, rc);
+ break;
+ }
+ }
+
+ if (rc != MBX_TIMEOUT)
+ mempool_free(mboxq, phba->mbox_mem_pool);
+
+ return cmdsent;
+}
+
+/**
+ * lpfc_sli4_fcfi_unreg - Unregister fcfi to device
+ * @phba: pointer to lpfc hba data structure.
+ * @fcfi: fcf index.
+ *
+ * This routine is invoked to unregister a FCFI from device.
+ **/
+void
+lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi)
+{
+ LPFC_MBOXQ_t *mbox;
+ uint32_t mbox_tmo;
+ int rc;
+ unsigned long flags;
+
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+
+ if (!mbox)
+ return;
+
+ lpfc_unreg_fcfi(mbox, fcfi);
+
+ if (!phba->sli4_hba.intr_enable)
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
+ else {
+ mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
+ rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
+ }
+ if (rc != MBX_TIMEOUT)
+ mempool_free(mbox, phba->mbox_mem_pool);
+ if (rc != MBX_SUCCESS)
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "2517 Unregister FCFI command failed "
+ "status %d, mbxStatus x%x\n", rc,
+ bf_get(lpfc_mqe_status, &mbox->u.mqe));
+ else {
+ spin_lock_irqsave(&phba->hbalock, flags);
+ /* Mark the FCFI is no longer registered */
+ phba->fcf.fcf_flag &=
+ ~(FCF_AVAILABLE | FCF_REGISTERED | FCF_DISCOVERED);
+ spin_unlock_irqrestore(&phba->hbalock, flags);
+ }
+}
+
+/**
+ * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to set up the PCI device memory space for device
+ * with SLI-4 interface spec.
+ *
+ * Return codes
+ * 0 - sucessful
+ * other values - error
+ **/
+static int
+lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
+{
+ struct pci_dev *pdev;
+ unsigned long bar0map_len, bar1map_len, bar2map_len;
+ int error = -ENODEV;
+
+ /* Obtain PCI device reference */
+ if (!phba->pcidev)
+ return error;
+ else
+ pdev = phba->pcidev;
+
+ /* Set the device DMA mask size */
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)
+ return error;
+
+ /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
+ * number of bytes required by each mapping. They are actually
+ * mapping to the PCI BAR regions 1, 2, and 4 by the SLI4 device.
+ */
+ phba->pci_bar0_map = pci_resource_start(pdev, LPFC_SLI4_BAR0);
+ bar0map_len = pci_resource_len(pdev, LPFC_SLI4_BAR0);
+
+ phba->pci_bar1_map = pci_resource_start(pdev, LPFC_SLI4_BAR1);
+ bar1map_len = pci_resource_len(pdev, LPFC_SLI4_BAR1);
+
+ phba->pci_bar2_map = pci_resource_start(pdev, LPFC_SLI4_BAR2);
+ bar2map_len = pci_resource_len(pdev, LPFC_SLI4_BAR2);
+
+ /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */
+ phba->sli4_hba.conf_regs_memmap_p =
+ ioremap(phba->pci_bar0_map, bar0map_len);
+ if (!phba->sli4_hba.conf_regs_memmap_p) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "ioremap failed for SLI4 PCI config registers.\n");
+ goto out;
+ }
+
+ /* Map SLI4 HBA Control Register base to a kernel virtual address. */
+ phba->sli4_hba.ctrl_regs_memmap_p =
+ ioremap(phba->pci_bar1_map, bar1map_len);
+ if (!phba->sli4_hba.ctrl_regs_memmap_p) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "ioremap failed for SLI4 HBA control registers.\n");
+ goto out_iounmap_conf;
+ }
+
+ /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */
+ phba->sli4_hba.drbl_regs_memmap_p =
+ ioremap(phba->pci_bar2_map, bar2map_len);
+ if (!phba->sli4_hba.drbl_regs_memmap_p) {
+ dev_printk(KERN_ERR, &pdev->dev,
+ "ioremap failed for SLI4 HBA doorbell registers.\n");
+ goto out_iounmap_ctrl;
+ }
+
+ /* Set up BAR0 PCI config space register memory map */
+ lpfc_sli4_bar0_register_memmap(phba);
+
+ /* Set up BAR1 register memory map */
+ lpfc_sli4_bar1_register_memmap(phba);
+
+ /* Set up BAR2 register memory map */
+ error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
+ if (error)
+ goto out_iounmap_all;
+
+ return 0;
+
+out_iounmap_all:
+ iounmap(phba->sli4_hba.drbl_regs_memmap_p);
+out_iounmap_ctrl:
+ iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
+out_iounmap_conf:
+ iounmap(phba->sli4_hba.conf_regs_memmap_p);
+out:
+ return error;
+}
+
+/**
+ * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to unset the PCI device memory space for device
+ * with SLI-4 interface spec.
+ **/
+static void
+lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
+{
+ struct pci_dev *pdev;
+
+ /* Obtain PCI device reference */
+ if (!phba->pcidev)
+ return;
+ else
+ pdev = phba->pcidev;
+
+ /* Free coherent DMA memory allocated */
+
+ /* Unmap I/O memory space */
+ iounmap(phba->sli4_hba.drbl_regs_memmap_p);
+ iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
+ iounmap(phba->sli4_hba.conf_regs_memmap_p);
+
+ return;
+}
+
+/**
+ * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to enable the MSI-X interrupt vectors to device
+ * with SLI-3 interface specs. The kernel function pci_enable_msix() is
+ * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
+ * invoked, enables either all or nothing, depending on the current
+ * availability of PCI vector resources. The device driver is responsible
+ * for calling the individual request_irq() to register each MSI-X vector
+ * with a interrupt handler, which is done in this function. Note that
+ * later when device is unloading, the driver should always call free_irq()
+ * on all MSI-X vectors it has done request_irq() on before calling
+ * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
+ * will be left with MSI-X enabled and leaks its vectors.
+ *
+ * Return codes
+ * 0 - sucessful
+ * other values - error
+ **/
+static int
+lpfc_sli_enable_msix(struct lpfc_hba *phba)
+{
+ int rc, i;
+ LPFC_MBOXQ_t *pmb;
+
+ /* Set up MSI-X multi-message vectors */
+ for (i = 0; i < LPFC_MSIX_VECTORS; i++)
+ phba->msix_entries[i].entry = i;
+
+ /* Configure MSI-X capability structure */
+ rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
+ ARRAY_SIZE(phba->msix_entries));
+ if (rc) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0420 PCI enable MSI-X failed (%d)\n", rc);
+ goto msi_fail_out;
+ }
+ for (i = 0; i < LPFC_MSIX_VECTORS; i++)
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0477 MSI-X entry[%d]: vector=x%x "
+ "message=%d\n", i,
+ phba->msix_entries[i].vector,
+ phba->msix_entries[i].entry);
+ /*
+ * Assign MSI-X vectors to interrupt handlers
+ */
+
+ /* vector-0 is associated to slow-path handler */
+ rc = request_irq(phba->msix_entries[0].vector,
+ &lpfc_sli_sp_intr_handler, IRQF_SHARED,
+ LPFC_SP_DRIVER_HANDLER_NAME, phba);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "0421 MSI-X slow-path request_irq failed "
+ "(%d)\n", rc);
+ goto msi_fail_out;
+ }
+
+ /* vector-1 is associated to fast-path handler */
+ rc = request_irq(phba->msix_entries[1].vector,
+ &lpfc_sli_fp_intr_handler, IRQF_SHARED,
+ LPFC_FP_DRIVER_HANDLER_NAME, phba);
+
+ if (rc) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "0429 MSI-X fast-path request_irq failed "
+ "(%d)\n", rc);
+ goto irq_fail_out;
+ }
+
+ /*
+ * Configure HBA MSI-X attention conditions to messages
+ */
+ pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+
+ if (!pmb) {
+ rc = -ENOMEM;
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0474 Unable to allocate memory for issuing "
+ "MBOX_CONFIG_MSI command\n");
+ goto mem_fail_out;
+ }
+ rc = lpfc_config_msi(phba, pmb);
+ if (rc)
+ goto mbx_fail_out;
+ rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
+ if (rc != MBX_SUCCESS) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
+ "0351 Config MSI mailbox command failed, "
+ "mbxCmd x%x, mbxStatus x%x\n",
+ pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
+ goto mbx_fail_out;
+ }
+
+ /* Free memory allocated for mailbox command */
+ mempool_free(pmb, phba->mbox_mem_pool);
+ return rc;
+
+mbx_fail_out:
+ /* Free memory allocated for mailbox command */
+ mempool_free(pmb, phba->mbox_mem_pool);
+
+mem_fail_out:
+ /* free the irq already requested */
+ free_irq(phba->msix_entries[1].vector, phba);
+
+irq_fail_out:
+ /* free the irq already requested */
+ free_irq(phba->msix_entries[0].vector, phba);
+
+msi_fail_out:
+ /* Unconfigure MSI-X capability structure */
+ pci_disable_msix(phba->pcidev);
+ return rc;
+}
+
+/**
+ * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to release the MSI-X vectors and then disable the
+ * MSI-X interrupt mode to device with SLI-3 interface spec.
+ **/
+static void
+lpfc_sli_disable_msix(struct lpfc_hba *phba)
+{
+ int i;
+
+ /* Free up MSI-X multi-message vectors */
+ for (i = 0; i < LPFC_MSIX_VECTORS; i++)
+ free_irq(phba->msix_entries[i].vector, phba);
+ /* Disable MSI-X */
+ pci_disable_msix(phba->pcidev);
+
+ return;
+}
+
+/**
+ * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to enable the MSI interrupt mode to device with
+ * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
+ * enable the MSI vector. The device driver is responsible for calling the
+ * request_irq() to register MSI vector with a interrupt the handler, which
+ * is done in this function.
+ *
+ * Return codes
+ * 0 - sucessful
+ * other values - error
+ */
+static int
+lpfc_sli_enable_msi(struct lpfc_hba *phba)
+{
+ int rc;
+
+ rc = pci_enable_msi(phba->pcidev);
+ if (!rc)
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0462 PCI enable MSI mode success.\n");
+ else {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0471 PCI enable MSI mode failed (%d)\n", rc);
+ return rc;
+ }
+
+ rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
+ IRQF_SHARED, LPFC_DRIVER_NAME, phba);
+ if (rc) {
+ pci_disable_msi(phba->pcidev);
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "0478 MSI request_irq failed (%d)\n", rc);
+ }
+ return rc;
+}
+
+/**
+ * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to disable the MSI interrupt mode to device with
+ * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
+ * done request_irq() on before calling pci_disable_msi(). Failure to do so
+ * results in a BUG_ON() and a device will be left with MSI enabled and leaks
+ * its vector.
+ */
+static void
+lpfc_sli_disable_msi(struct lpfc_hba *phba)
+{
+ free_irq(phba->pcidev->irq, phba);
+ pci_disable_msi(phba->pcidev);
+ return;
+}
+
+/**
+ * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to enable device interrupt and associate driver's
+ * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
+ * spec. Depends on the interrupt mode configured to the driver, the driver
+ * will try to fallback from the configured interrupt mode to an interrupt
+ * mode which is supported by the platform, kernel, and device in the order
+ * of:
+ * MSI-X -> MSI -> IRQ.
+ *
+ * Return codes
+ * 0 - sucessful
+ * other values - error
+ **/
+static uint32_t
+lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
+{
+ uint32_t intr_mode = LPFC_INTR_ERROR;
+ int retval;
+
+ if (cfg_mode == 2) {
+ /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
+ retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
+ if (!retval) {
+ /* Now, try to enable MSI-X interrupt mode */
+ retval = lpfc_sli_enable_msix(phba);
+ if (!retval) {
+ /* Indicate initialization to MSI-X mode */
+ phba->intr_type = MSIX;
+ intr_mode = 2;
+ }
+ }
+ }
+
+ /* Fallback to MSI if MSI-X initialization failed */
+ if (cfg_mode >= 1 && phba->intr_type == NONE) {
+ retval = lpfc_sli_enable_msi(phba);
+ if (!retval) {
+ /* Indicate initialization to MSI mode */
+ phba->intr_type = MSI;
+ intr_mode = 1;
+ }
+ }
+
+ /* Fallback to INTx if both MSI-X/MSI initalization failed */
+ if (phba->intr_type == NONE) {
+ retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
+ IRQF_SHARED, LPFC_DRIVER_NAME, phba);
+ if (!retval) {
+ /* Indicate initialization to INTx mode */
+ phba->intr_type = INTx;
+ intr_mode = 0;
+ }
+ }
+ return intr_mode;
+}
+
+/**
+ * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to disable device interrupt and disassociate the
+ * driver's interrupt handler(s) from interrupt vector(s) to device with
+ * SLI-3 interface spec. Depending on the interrupt mode, the driver will
+ * release the interrupt vector(s) for the message signaled interrupt.
+ **/
+static void
lpfc_sli_disable_intr(struct lpfc_hba *phba)
{
- /* Disable the currently initialized interrupt mode */
- if (phba->intr_type == MSIX)
- lpfc_sli_disable_msix(phba);
- else if (phba->intr_type == MSI)
- lpfc_sli_disable_msi(phba);
- else if (phba->intr_type == INTx)
- free_irq(phba->pcidev->irq, phba);
+ /* Disable the currently initialized interrupt mode */
+ if (phba->intr_type == MSIX)
+ lpfc_sli_disable_msix(phba);
+ else if (phba->intr_type == MSI)
+ lpfc_sli_disable_msi(phba);
+ else if (phba->intr_type == INTx)
+ free_irq(phba->pcidev->irq, phba);
+
+ /* Reset interrupt management states */
+ phba->intr_type = NONE;
+ phba->sli.slistat.sli_intr = 0;
+
+ return;
+}
+
+/**
+ * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to enable the MSI-X interrupt vectors to device
+ * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
+ * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
+ * enables either all or nothing, depending on the current availability of
+ * PCI vector resources. The device driver is responsible for calling the
+ * individual request_irq() to register each MSI-X vector with a interrupt
+ * handler, which is done in this function. Note that later when device is
+ * unloading, the driver should always call free_irq() on all MSI-X vectors
+ * it has done request_irq() on before calling pci_disable_msix(). Failure
+ * to do so results in a BUG_ON() and a device will be left with MSI-X
+ * enabled and leaks its vectors.
+ *
+ * Return codes
+ * 0 - sucessful
+ * other values - error
+ **/
+static int
+lpfc_sli4_enable_msix(struct lpfc_hba *phba)
+{
+ int rc, index;
+
+ /* Set up MSI-X multi-message vectors */
+ for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
+ phba->sli4_hba.msix_entries[index].entry = index;
+
+ /* Configure MSI-X capability structure */
+ rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
+ phba->sli4_hba.cfg_eqn);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0484 PCI enable MSI-X failed (%d)\n", rc);
+ goto msi_fail_out;
+ }
+ /* Log MSI-X vector assignment */
+ for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0489 MSI-X entry[%d]: vector=x%x "
+ "message=%d\n", index,
+ phba->sli4_hba.msix_entries[index].vector,
+ phba->sli4_hba.msix_entries[index].entry);
+ /*
+ * Assign MSI-X vectors to interrupt handlers
+ */
+
+ /* The first vector must associated to slow-path handler for MQ */
+ rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
+ &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
+ LPFC_SP_DRIVER_HANDLER_NAME, phba);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "0485 MSI-X slow-path request_irq failed "
+ "(%d)\n", rc);
+ goto msi_fail_out;
+ }
+
+ /* The rest of the vector(s) are associated to fast-path handler(s) */
+ for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) {
+ phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
+ phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
+ rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
+ &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
+ LPFC_FP_DRIVER_HANDLER_NAME,
+ &phba->sli4_hba.fcp_eq_hdl[index - 1]);
+ if (rc) {
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "0486 MSI-X fast-path (%d) "
+ "request_irq failed (%d)\n", index, rc);
+ goto cfg_fail_out;
+ }
+ }
+
+ return rc;
+
+cfg_fail_out:
+ /* free the irq already requested */
+ for (--index; index >= 1; index--)
+ free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
+ &phba->sli4_hba.fcp_eq_hdl[index - 1]);
+
+ /* free the irq already requested */
+ free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
+
+msi_fail_out:
+ /* Unconfigure MSI-X capability structure */
+ pci_disable_msix(phba->pcidev);
+ return rc;
+}
+
+/**
+ * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to release the MSI-X vectors and then disable the
+ * MSI-X interrupt mode to device with SLI-4 interface spec.
+ **/
+static void
+lpfc_sli4_disable_msix(struct lpfc_hba *phba)
+{
+ int index;
+
+ /* Free up MSI-X multi-message vectors */
+ free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
+
+ for (index = 1; index < phba->sli4_hba.cfg_eqn; index++)
+ free_irq(phba->sli4_hba.msix_entries[index].vector,
+ &phba->sli4_hba.fcp_eq_hdl[index - 1]);
+ /* Disable MSI-X */
+ pci_disable_msix(phba->pcidev);
+
+ return;
+}
+
+/**
+ * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to enable the MSI interrupt mode to device with
+ * SLI-4 interface spec. The kernel function pci_enable_msi() is called
+ * to enable the MSI vector. The device driver is responsible for calling
+ * the request_irq() to register MSI vector with a interrupt the handler,
+ * which is done in this function.
+ *
+ * Return codes
+ * 0 - sucessful
+ * other values - error
+ **/
+static int
+lpfc_sli4_enable_msi(struct lpfc_hba *phba)
+{
+ int rc, index;
+
+ rc = pci_enable_msi(phba->pcidev);
+ if (!rc)
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0487 PCI enable MSI mode success.\n");
+ else {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0488 PCI enable MSI mode failed (%d)\n", rc);
+ return rc;
+ }
+
+ rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
+ IRQF_SHARED, LPFC_DRIVER_NAME, phba);
+ if (rc) {
+ pci_disable_msi(phba->pcidev);
+ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+ "0490 MSI request_irq failed (%d)\n", rc);
+ }
+
+ for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
+ phba->sli4_hba.fcp_eq_hdl[index].idx = index;
+ phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
+ }
+
+ return rc;
+}
+
+/**
+ * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to disable the MSI interrupt mode to device with
+ * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
+ * done request_irq() on before calling pci_disable_msi(). Failure to do so
+ * results in a BUG_ON() and a device will be left with MSI enabled and leaks
+ * its vector.
+ **/
+static void
+lpfc_sli4_disable_msi(struct lpfc_hba *phba)
+{
+ free_irq(phba->pcidev->irq, phba);
+ pci_disable_msi(phba->pcidev);
+ return;
+}
+
+/**
+ * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to enable device interrupt and associate driver's
+ * interrupt handler(s) to interrupt vector(s) to device with SLI-4
+ * interface spec. Depends on the interrupt mode configured to the driver,
+ * the driver will try to fallback from the configured interrupt mode to an
+ * interrupt mode which is supported by the platform, kernel, and device in
+ * the order of:
+ * MSI-X -> MSI -> IRQ.
+ *
+ * Return codes
+ * 0 - sucessful
+ * other values - error
+ **/
+static uint32_t
+lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
+{
+ uint32_t intr_mode = LPFC_INTR_ERROR;
+ int retval, index;
+
+ if (cfg_mode == 2) {
+ /* Preparation before conf_msi mbox cmd */
+ retval = 0;
+ if (!retval) {
+ /* Now, try to enable MSI-X interrupt mode */
+ retval = lpfc_sli4_enable_msix(phba);
+ if (!retval) {
+ /* Indicate initialization to MSI-X mode */
+ phba->intr_type = MSIX;
+ intr_mode = 2;
+ }
+ }
+ }
+
+ /* Fallback to MSI if MSI-X initialization failed */
+ if (cfg_mode >= 1 && phba->intr_type == NONE) {
+ retval = lpfc_sli4_enable_msi(phba);
+ if (!retval) {
+ /* Indicate initialization to MSI mode */
+ phba->intr_type = MSI;
+ intr_mode = 1;
+ }
+ }
+
+ /* Fallback to INTx if both MSI-X/MSI initalization failed */
+ if (phba->intr_type == NONE) {
+ retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
+ IRQF_SHARED, LPFC_DRIVER_NAME, phba);
+ if (!retval) {
+ /* Indicate initialization to INTx mode */
+ phba->intr_type = INTx;
+ intr_mode = 0;
+ for (index = 0; index < phba->cfg_fcp_eq_count;
+ index++) {
+ phba->sli4_hba.fcp_eq_hdl[index].idx = index;
+ phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
+ }
+ }
+ }
+ return intr_mode;
+}
+
+/**
+ * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to disable device interrupt and disassociate
+ * the driver's interrupt handler(s) from interrupt vector(s) to device
+ * with SLI-4 interface spec. Depending on the interrupt mode, the driver
+ * will release the interrupt vector(s) for the message signaled interrupt.
+ **/
+static void
+lpfc_sli4_disable_intr(struct lpfc_hba *phba)
+{
+ /* Disable the currently initialized interrupt mode */
+ if (phba->intr_type == MSIX)
+ lpfc_sli4_disable_msix(phba);
+ else if (phba->intr_type == MSI)
+ lpfc_sli4_disable_msi(phba);
+ else if (phba->intr_type == INTx)
+ free_irq(phba->pcidev->irq, phba);
+
+ /* Reset interrupt management states */
+ phba->intr_type = NONE;
+ phba->sli.slistat.sli_intr = 0;
+
+ return;
+}
+
+/**
+ * lpfc_unset_hba - Unset SLI3 hba device initialization
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to unset the HBA device initialization steps to
+ * a device with SLI-3 interface spec.
+ **/
+static void
+lpfc_unset_hba(struct lpfc_hba *phba)
+{
+ struct lpfc_vport *vport = phba->pport;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+ spin_lock_irq(shost->host_lock);
+ vport->load_flag |= FC_UNLOADING;
+ spin_unlock_irq(shost->host_lock);
+
+ lpfc_stop_hba_timers(phba);
+
+ phba->pport->work_port_events = 0;
+
+ lpfc_sli_hba_down(phba);
+
+ lpfc_sli_brdrestart(phba);
+
+ lpfc_sli_disable_intr(phba);
+
+ return;
+}
+
+/**
+ * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to unset the HBA device initialization steps to
+ * a device with SLI-4 interface spec.
+ **/
+static void
+lpfc_sli4_unset_hba(struct lpfc_hba *phba)
+{
+ struct lpfc_vport *vport = phba->pport;
+ struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+
+ spin_lock_irq(shost->host_lock);
+ vport->load_flag |= FC_UNLOADING;
+ spin_unlock_irq(shost->host_lock);
+
+ phba->pport->work_port_events = 0;
+
+ lpfc_sli4_hba_down(phba);
+
+ lpfc_sli4_disable_intr(phba);
+
+ return;
+}
+
+/**
+ * lpfc_sli4_hba_unset - Unset the fcoe hba
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is called in the SLI4 code path to reset the HBA's FCoE
+ * function. The caller is not required to hold any lock. This routine
+ * issues PCI function reset mailbox command to reset the FCoE function.
+ * At the end of the function, it calls lpfc_hba_down_post function to
+ * free any pending commands.
+ **/
+static void
+lpfc_sli4_hba_unset(struct lpfc_hba *phba)
+{
+ int wait_cnt = 0;
+ LPFC_MBOXQ_t *mboxq;
+
+ lpfc_stop_hba_timers(phba);
+ phba->sli4_hba.intr_enable = 0;
+
+ /*
+ * Gracefully wait out the potential current outstanding asynchronous
+ * mailbox command.
+ */
+
+ /* First, block any pending async mailbox command from posted */
+ spin_lock_irq(&phba->hbalock);
+ phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
+ spin_unlock_irq(&phba->hbalock);
+ /* Now, trying to wait it out if we can */
+ while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
+ msleep(10);
+ if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
+ break;
+ }
+ /* Forcefully release the outstanding mailbox command if timed out */
+ if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
+ spin_lock_irq(&phba->hbalock);
+ mboxq = phba->sli.mbox_active;
+ mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
+ __lpfc_mbox_cmpl_put(phba, mboxq);
+ phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ phba->sli.mbox_active = NULL;
+ spin_unlock_irq(&phba->hbalock);
+ }
+
+ /* Tear down the queues in the HBA */
+ lpfc_sli4_queue_unset(phba);
+
+ /* Disable PCI subsystem interrupt */
+ lpfc_sli4_disable_intr(phba);
+
+ /* Stop kthread signal shall trigger work_done one more time */
+ kthread_stop(phba->worker_thread);
+
+ /* Stop the SLI4 device port */
+ phba->pport->work_port_events = 0;
+}
+
+/**
+ * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
+ * @pdev: pointer to PCI device
+ * @pid: pointer to PCI device identifier
+ *
+ * This routine is to be called to attach a device with SLI-3 interface spec
+ * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
+ * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
+ * information of the device and driver to see if the driver state that it can
+ * support this kind of device. If the match is successful, the driver core
+ * invokes this routine. If this routine determines it can claim the HBA, it
+ * does all the initialization that it needs to do to handle the HBA properly.
+ *
+ * Return code
+ * 0 - driver can claim the device
+ * negative value - driver can not claim the device
+ **/
+static int __devinit
+lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
+{
+ struct lpfc_hba *phba;
+ struct lpfc_vport *vport = NULL;
+ int error;
+ uint32_t cfg_mode, intr_mode;
+
+ /* Allocate memory for HBA structure */
+ phba = lpfc_hba_alloc(pdev);
+ if (!phba)
+ return -ENOMEM;
+
+ /* Perform generic PCI device enabling operation */
+ error = lpfc_enable_pci_dev(phba);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1401 Failed to enable pci device.\n");
+ goto out_free_phba;
+ }
+
+ /* Set up SLI API function jump table for PCI-device group-0 HBAs */
+ error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
+ if (error)
+ goto out_disable_pci_dev;
+
+ /* Set up SLI-3 specific device PCI memory space */
+ error = lpfc_sli_pci_mem_setup(phba);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1402 Failed to set up pci memory space.\n");
+ goto out_disable_pci_dev;
+ }
+
+ /* Set up phase-1 common device driver resources */
+ error = lpfc_setup_driver_resource_phase1(phba);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1403 Failed to set up driver resource.\n");
+ goto out_unset_pci_mem_s3;
+ }
+
+ /* Set up SLI-3 specific device driver resources */
+ error = lpfc_sli_driver_resource_setup(phba);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1404 Failed to set up driver resource.\n");
+ goto out_unset_pci_mem_s3;
+ }
+
+ /* Initialize and populate the iocb list per host */
+ error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1405 Failed to initialize iocb list.\n");
+ goto out_unset_driver_resource_s3;
+ }
+
+ /* Set up common device driver resources */
+ error = lpfc_setup_driver_resource_phase2(phba);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1406 Failed to set up driver resource.\n");
+ goto out_free_iocb_list;
+ }
+
+ /* Create SCSI host to the physical port */
+ error = lpfc_create_shost(phba);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1407 Failed to create scsi host.\n");
+ goto out_unset_driver_resource;
+ }
+
+ /* Configure sysfs attributes */
+ vport = phba->pport;
+ error = lpfc_alloc_sysfs_attr(vport);
+ if (error) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1476 Failed to allocate sysfs attr\n");
+ goto out_destroy_shost;
+ }
+
+ /* Now, trying to enable interrupt and bring up the device */
+ cfg_mode = phba->cfg_use_msi;
+ while (true) {
+ /* Put device to a known state before enabling interrupt */
+ lpfc_stop_port(phba);
+ /* Configure and enable interrupt */
+ intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
+ if (intr_mode == LPFC_INTR_ERROR) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0431 Failed to enable interrupt.\n");
+ error = -ENODEV;
+ goto out_free_sysfs_attr;
+ }
+ /* SLI-3 HBA setup */
+ if (lpfc_sli_hba_setup(phba)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "1477 Failed to set up hba\n");
+ error = -ENODEV;
+ goto out_remove_device;
+ }
+
+ /* Wait 50ms for the interrupts of previous mailbox commands */
+ msleep(50);
+ /* Check active interrupts on message signaled interrupts */
+ if (intr_mode == 0 ||
+ phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
+ /* Log the current active interrupt mode */
+ phba->intr_mode = intr_mode;
+ lpfc_log_intr_mode(phba, intr_mode);
+ break;
+ } else {
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0447 Configure interrupt mode (%d) "
+ "failed active interrupt test.\n",
+ intr_mode);
+ /* Disable the current interrupt mode */
+ lpfc_sli_disable_intr(phba);
+ /* Try next level of interrupt mode */
+ cfg_mode = --intr_mode;
+ }
+ }
+
+ /* Perform post initialization setup */
+ lpfc_post_init_setup(phba);
+
+ /* Check if there are static vports to be created. */
+ lpfc_create_static_vport(phba);
+
+ return 0;
+
+out_remove_device:
+ lpfc_unset_hba(phba);
+out_free_sysfs_attr:
+ lpfc_free_sysfs_attr(vport);
+out_destroy_shost:
+ lpfc_destroy_shost(phba);
+out_unset_driver_resource:
+ lpfc_unset_driver_resource_phase2(phba);
+out_free_iocb_list:
+ lpfc_free_iocb_list(phba);
+out_unset_driver_resource_s3:
+ lpfc_sli_driver_resource_unset(phba);
+out_unset_pci_mem_s3:
+ lpfc_sli_pci_mem_unset(phba);
+out_disable_pci_dev:
+ lpfc_disable_pci_dev(phba);
+out_free_phba:
+ lpfc_hba_free(phba);
+ return error;
+}
+
+/**
+ * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
+ * @pdev: pointer to PCI device
+ *
+ * This routine is to be called to disattach a device with SLI-3 interface
+ * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
+ * removed from PCI bus, it performs all the necessary cleanup for the HBA
+ * device to be removed from the PCI subsystem properly.
+ **/
+static void __devexit
+lpfc_pci_remove_one_s3(struct pci_dev *pdev)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+ struct lpfc_vport **vports;
+ struct lpfc_hba *phba = vport->phba;
+ int i;
+ int bars = pci_select_bars(pdev, IORESOURCE_MEM);
+
+ spin_lock_irq(&phba->hbalock);
+ vport->load_flag |= FC_UNLOADING;
+ spin_unlock_irq(&phba->hbalock);
+
+ lpfc_free_sysfs_attr(vport);
+
+ /* Release all the vports against this physical port */
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL)
+ for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
+ fc_vport_terminate(vports[i]->fc_vport);
+ lpfc_destroy_vport_work_array(phba, vports);
+
+ /* Remove FC host and then SCSI host with the physical port */
+ fc_remove_host(shost);
+ scsi_remove_host(shost);
+ lpfc_cleanup(vport);
+
+ /*
+ * Bring down the SLI Layer. This step disable all interrupts,
+ * clears the rings, discards all mailbox commands, and resets
+ * the HBA.
+ */
+
+ /* HBA interrupt will be diabled after this call */
+ lpfc_sli_hba_down(phba);
+ /* Stop kthread signal shall trigger work_done one more time */
+ kthread_stop(phba->worker_thread);
+ /* Final cleanup of txcmplq and reset the HBA */
+ lpfc_sli_brdrestart(phba);
+
+ lpfc_stop_hba_timers(phba);
+ spin_lock_irq(&phba->hbalock);
+ list_del_init(&vport->listentry);
+ spin_unlock_irq(&phba->hbalock);
+
+ lpfc_debugfs_terminate(vport);
+
+ /* Disable interrupt */
+ lpfc_sli_disable_intr(phba);
+
+ pci_set_drvdata(pdev, NULL);
+ scsi_host_put(shost);
+
+ /*
+ * Call scsi_free before mem_free since scsi bufs are released to their
+ * corresponding pools here.
+ */
+ lpfc_scsi_free(phba);
+ lpfc_mem_free_all(phba);
+
+ dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
+ phba->hbqslimp.virt, phba->hbqslimp.phys);
+
+ /* Free resources associated with SLI2 interface */
+ dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
+ phba->slim2p.virt, phba->slim2p.phys);
+
+ /* unmap adapter SLIM and Control Registers */
+ iounmap(phba->ctrl_regs_memmap_p);
+ iounmap(phba->slim_memmap_p);
+
+ lpfc_hba_free(phba);
+
+ pci_release_selected_regions(pdev, bars);
+ pci_disable_device(pdev);
+}
+
+/**
+ * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
+ * @pdev: pointer to PCI device
+ * @msg: power management message
+ *
+ * This routine is to be called from the kernel's PCI subsystem to support
+ * system Power Management (PM) to device with SLI-3 interface spec. When
+ * PM invokes this method, it quiesces the device by stopping the driver's
+ * worker thread for the device, turning off device's interrupt and DMA,
+ * and bring the device offline. Note that as the driver implements the
+ * minimum PM requirements to a power-aware driver's PM support for the
+ * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
+ * to the suspend() method call will be treated as SUSPEND and the driver will
+ * fully reinitialize its device during resume() method call, the driver will
+ * set device to PCI_D3hot state in PCI config space instead of setting it
+ * according to the @msg provided by the PM.
+ *
+ * Return code
+ * 0 - driver suspended the device
+ * Error otherwise
+ **/
+static int
+lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
- /* Reset interrupt management states */
- phba->intr_type = NONE;
- phba->sli.slistat.sli_intr = 0;
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0473 PCI device Power Management suspend.\n");
- return;
+ /* Bring down the device */
+ lpfc_offline_prep(phba);
+ lpfc_offline(phba);
+ kthread_stop(phba->worker_thread);
+
+ /* Disable interrupt from device */
+ lpfc_sli_disable_intr(phba);
+
+ /* Save device state to PCI config space */
+ pci_save_state(pdev);
+ pci_set_power_state(pdev, PCI_D3hot);
+
+ return 0;
}
/**
- * lpfc_unset_hba - Unset SLI3 hba device initialization
- * @phba: pointer to lpfc hba data structure.
+ * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
+ * @pdev: pointer to PCI device
*
- * This routine is invoked to unset the HBA device initialization steps to
- * a device with SLI-3 interface spec.
+ * This routine is to be called from the kernel's PCI subsystem to support
+ * system Power Management (PM) to device with SLI-3 interface spec. When PM
+ * invokes this method, it restores the device's PCI config space state and
+ * fully reinitializes the device and brings it online. Note that as the
+ * driver implements the minimum PM requirements to a power-aware driver's
+ * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
+ * FREEZE) to the suspend() method call will be treated as SUSPEND and the
+ * driver will fully reinitialize its device during resume() method call,
+ * the device will be set to PCI_D0 directly in PCI config space before
+ * restoring the state.
+ *
+ * Return code
+ * 0 - driver suspended the device
+ * Error otherwise
**/
-static void
-lpfc_unset_hba(struct lpfc_hba *phba)
+static int
+lpfc_pci_resume_one_s3(struct pci_dev *pdev)
{
- struct lpfc_vport *vport = phba->pport;
- struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+ uint32_t intr_mode;
+ int error;
- spin_lock_irq(shost->host_lock);
- vport->load_flag |= FC_UNLOADING;
- spin_unlock_irq(shost->host_lock);
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0452 PCI device Power Management resume.\n");
- lpfc_stop_hba_timers(phba);
+ /* Restore device state from PCI config space */
+ pci_set_power_state(pdev, PCI_D0);
+ pci_restore_state(pdev);
+ if (pdev->is_busmaster)
+ pci_set_master(pdev);
- phba->pport->work_port_events = 0;
+ /* Startup the kernel thread for this host adapter. */
+ phba->worker_thread = kthread_run(lpfc_do_work, phba,
+ "lpfc_worker_%d", phba->brd_no);
+ if (IS_ERR(phba->worker_thread)) {
+ error = PTR_ERR(phba->worker_thread);
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0434 PM resume failed to start worker "
+ "thread: error=x%x.\n", error);
+ return error;
+ }
- lpfc_sli_hba_down(phba);
+ /* Configure and enable interrupt */
+ intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
+ if (intr_mode == LPFC_INTR_ERROR) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0430 PM resume Failed to enable interrupt\n");
+ return -EIO;
+ } else
+ phba->intr_mode = intr_mode;
+ /* Restart HBA and bring it online */
lpfc_sli_brdrestart(phba);
+ lpfc_online(phba);
+
+ /* Log the current active interrupt mode */
+ lpfc_log_intr_mode(phba, phba->intr_mode);
+
+ return 0;
+}
+
+/**
+ * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
+ * @pdev: pointer to PCI device.
+ * @state: the current PCI connection state.
+ *
+ * This routine is called from the PCI subsystem for I/O error handling to
+ * device with SLI-3 interface spec. This function is called by the PCI
+ * subsystem after a PCI bus error affecting this device has been detected.
+ * When this function is invoked, it will need to stop all the I/Os and
+ * interrupt(s) to the device. Once that is done, it will return
+ * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
+ * as desired.
+ *
+ * Return codes
+ * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
+ * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
+ **/
+static pci_ers_result_t
+lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+ struct lpfc_sli *psli = &phba->sli;
+ struct lpfc_sli_ring *pring;
+
+ if (state == pci_channel_io_perm_failure) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0472 PCI channel I/O permanent failure\n");
+ /* Block all SCSI devices' I/Os on the host */
+ lpfc_scsi_dev_block(phba);
+ /* Clean up all driver's outstanding SCSI I/Os */
+ lpfc_sli_flush_fcp_rings(phba);
+ return PCI_ERS_RESULT_DISCONNECT;
+ }
+
+ pci_disable_device(pdev);
+ /*
+ * There may be I/Os dropped by the firmware.
+ * Error iocb (I/O) on txcmplq and let the SCSI layer
+ * retry it after re-establishing link.
+ */
+ pring = &psli->ring[psli->fcp_ring];
+ lpfc_sli_abort_iocb_ring(phba, pring);
+ /* Disable interrupt */
lpfc_sli_disable_intr(phba);
- return;
+ /* Request a slot reset. */
+ return PCI_ERS_RESULT_NEED_RESET;
}
/**
- * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
+ * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
+ * @pdev: pointer to PCI device.
+ *
+ * This routine is called from the PCI subsystem for error handling to
+ * device with SLI-3 interface spec. This is called after PCI bus has been
+ * reset to restart the PCI card from scratch, as if from a cold-boot.
+ * During the PCI subsystem error recovery, after driver returns
+ * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
+ * recovery and then call this routine before calling the .resume method
+ * to recover the device. This function will initialize the HBA device,
+ * enable the interrupt, but it will just put the HBA to offline state
+ * without passing any I/O traffic.
+ *
+ * Return codes
+ * PCI_ERS_RESULT_RECOVERED - the device has been recovered
+ * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
+ */
+static pci_ers_result_t
+lpfc_io_slot_reset_s3(struct pci_dev *pdev)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+ struct lpfc_sli *psli = &phba->sli;
+ uint32_t intr_mode;
+
+ dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
+ if (pci_enable_device_mem(pdev)) {
+ printk(KERN_ERR "lpfc: Cannot re-enable "
+ "PCI device after reset.\n");
+ return PCI_ERS_RESULT_DISCONNECT;
+ }
+
+ pci_restore_state(pdev);
+ if (pdev->is_busmaster)
+ pci_set_master(pdev);
+
+ spin_lock_irq(&phba->hbalock);
+ psli->sli_flag &= ~LPFC_SLI_ACTIVE;
+ spin_unlock_irq(&phba->hbalock);
+
+ /* Configure and enable interrupt */
+ intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
+ if (intr_mode == LPFC_INTR_ERROR) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0427 Cannot re-enable interrupt after "
+ "slot reset.\n");
+ return PCI_ERS_RESULT_DISCONNECT;
+ } else
+ phba->intr_mode = intr_mode;
+
+ /* Take device offline; this will perform cleanup */
+ lpfc_offline(phba);
+ lpfc_sli_brdrestart(phba);
+
+ /* Log the current active interrupt mode */
+ lpfc_log_intr_mode(phba, phba->intr_mode);
+
+ return PCI_ERS_RESULT_RECOVERED;
+}
+
+/**
+ * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
+ * @pdev: pointer to PCI device
+ *
+ * This routine is called from the PCI subsystem for error handling to device
+ * with SLI-3 interface spec. It is called when kernel error recovery tells
+ * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
+ * error recovery. After this call, traffic can start to flow from this device
+ * again.
+ */
+static void
+lpfc_io_resume_s3(struct pci_dev *pdev)
+{
+ struct Scsi_Host *shost = pci_get_drvdata(pdev);
+ struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+
+ lpfc_online(phba);
+}
+
+/**
+ * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * returns the number of ELS/CT IOCBs to reserve
+ **/
+int
+lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
+{
+ int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
+
+ if (max_xri <= 100)
+ return 4;
+ else if (max_xri <= 256)
+ return 8;
+ else if (max_xri <= 512)
+ return 16;
+ else if (max_xri <= 1024)
+ return 32;
+ else
+ return 48;
+}
+
+/**
+ * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
* @pdev: pointer to PCI device
* @pid: pointer to PCI device identifier
*
- * This routine is to be called to attach a device with SLI-3 interface spec
- * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
+ * This routine is called from the kernel's PCI subsystem to device with
+ * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
* presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
- * information of the device and driver to see if the driver state that it can
- * support this kind of device. If the match is successful, the driver core
- * invokes this routine. If this routine determines it can claim the HBA, it
- * does all the initialization that it needs to do to handle the HBA properly.
+ * information of the device and driver to see if the driver state that it
+ * can support this kind of device. If the match is successful, the driver
+ * core invokes this routine. If this routine determines it can claim the HBA,
+ * it does all the initialization that it needs to do to handle the HBA
+ * properly.
*
* Return code
* 0 - driver can claim the device
* negative value - driver can not claim the device
**/
static int __devinit
-lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
+lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
{
struct lpfc_hba *phba;
struct lpfc_vport *vport = NULL;
int error;
uint32_t cfg_mode, intr_mode;
+ int mcnt;
/* Allocate memory for HBA structure */
phba = lpfc_hba_alloc(pdev);
reply other threads:[~2009-05-22 18:52 UTC|newest]
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