Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream

Conflicts:

	drivers/uwb/wlp/eda.c

1 files changed, 541 insertions, 144 deletions

diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 909be3301bb..4c77038c8f1 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -45,6 +45,12 @@
 #include "lpfc_vport.h"
 #include "lpfc_version.h"
 
+char *_dump_buf_data;
+unsigned long _dump_buf_data_order;
+char *_dump_buf_dif;
+unsigned long _dump_buf_dif_order;
+spinlock_t _dump_buf_lock;
+
 static int lpfc_parse_vpd(struct lpfc_hba *, uint8_t *, int);
 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
 static int lpfc_post_rcv_buf(struct lpfc_hba *);
@@ -236,6 +242,51 @@ lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 }
 
 /**
+ * lpfc_dump_wakeup_param_cmpl: Completion handler for dump memory mailbox
+ *     command used for getting wake up parameters.
+ * @phba: pointer to lpfc hba data structure.
+ * @pmboxq: pointer to the driver internal queue element for mailbox command.
+ *
+ * This is the completion handler for dump mailbox command for getting
+ * wake up parameters. When this command complete, the response contain
+ * Option rom version of the HBA. This function translate the version number
+ * into a human readable string and store it in OptionROMVersion.
+ **/
+static void
+lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
+{
+	struct prog_id *prg;
+	uint32_t prog_id_word;
+	char dist = ' ';
+	/* character array used for decoding dist type. */
+	char dist_char[] = "nabx";
+
+	if (pmboxq->mb.mbxStatus != MBX_SUCCESS) {
+		mempool_free(pmboxq, phba->mbox_mem_pool);
+		return;
+	}
+
+	prg = (struct prog_id *) &prog_id_word;
+
+	/* word 7 contain option rom version */
+	prog_id_word = pmboxq->mb.un.varWords[7];
+
+	/* Decode the Option rom version word to a readable string */
+	if (prg->dist < 4)
+		dist = dist_char[prg->dist];
+
+	if ((prg->dist == 3) && (prg->num == 0))
+		sprintf(phba->OptionROMVersion, "%d.%d%d",
+			prg->ver, prg->rev, prg->lev);
+	else
+		sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
+			prg->ver, prg->rev, prg->lev,
+			dist, prg->num);
+	mempool_free(pmboxq, phba->mbox_mem_pool);
+	return;
+}
+
+/**
  * lpfc_config_port_post: Perform lpfc initialization after config port.
  * @phba: pointer to lpfc hba data structure.
  *
@@ -482,6 +533,20 @@ lpfc_config_port_post(struct lpfc_hba *phba)
 				rc);
 		mempool_free(pmb, phba->mbox_mem_pool);
 	}
+
+	/* Get Option rom version */
+	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+	lpfc_dump_wakeup_param(phba, pmb);
+	pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
+	pmb->vport = phba->pport;
+	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
+
+	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
+				"to get Option ROM version status x%x\n.", rc);
+		mempool_free(pmb, phba->mbox_mem_pool);
+	}
+
 	return 0;
 }
 
@@ -686,11 +751,6 @@ lpfc_hb_timeout_handler(struct lpfc_hba *phba)
 		return;
 
 	spin_lock_irq(&phba->pport->work_port_lock);
-	/* If the timer is already canceled do nothing */
-	if (!(phba->pport->work_port_events & WORKER_HB_TMO)) {
-		spin_unlock_irq(&phba->pport->work_port_lock);
-		return;
-	}
 
 	if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
 		jiffies)) {
@@ -833,8 +893,7 @@ lpfc_handle_eratt(struct lpfc_hba *phba)
 	fc_host_post_vendor_event(shost, fc_get_event_number(),
 				  sizeof(board_event),
 				  (char *) &board_event,
-				  SCSI_NL_VID_TYPE_PCI
-				  | PCI_VENDOR_ID_EMULEX);
+				  LPFC_NL_VENDOR_ID);
 
 	if (phba->work_hs & HS_FFER6) {
 		/* Re-establishing Link */
@@ -1984,6 +2043,7 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
 	shost->max_lun = vport->cfg_max_luns;
 	shost->this_id = -1;
 	shost->max_cmd_len = 16;
+
 	/*
 	 * Set initial can_queue value since 0 is no longer supported and
 	 * scsi_add_host will fail. This will be adjusted later based on the
@@ -2042,8 +2102,6 @@ destroy_port(struct lpfc_vport *vport)
 	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 	struct lpfc_hba  *phba = vport->phba;
 
-	kfree(vport->vname);
-
 	lpfc_debugfs_terminate(vport);
 	fc_remove_host(shost);
 	scsi_remove_host(shost);
@@ -2226,8 +2284,7 @@ lpfc_enable_msix(struct lpfc_hba *phba)
 				ARRAY_SIZE(phba->msix_entries));
 	if (rc) {
 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-				"0420 Enable MSI-X failed (%d), continuing "
-				"with MSI\n", rc);
+				"0420 PCI enable MSI-X failed (%d)\n", rc);
 		goto msi_fail_out;
 	} else
 		for (i = 0; i < LPFC_MSIX_VECTORS; i++)
@@ -2244,9 +2301,9 @@ lpfc_enable_msix(struct lpfc_hba *phba)
 	rc = request_irq(phba->msix_entries[0].vector, &lpfc_sp_intr_handler,
 			 IRQF_SHARED, LPFC_SP_DRIVER_HANDLER_NAME, phba);
 	if (rc) {
-		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 				"0421 MSI-X slow-path request_irq failed "
-				"(%d), continuing with MSI\n", rc);
+				"(%d)\n", rc);
 		goto msi_fail_out;
 	}
 
@@ -2255,9 +2312,9 @@ lpfc_enable_msix(struct lpfc_hba *phba)
 			 IRQF_SHARED, LPFC_FP_DRIVER_HANDLER_NAME, phba);
 
 	if (rc) {
-		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 				"0429 MSI-X fast-path request_irq failed "
-				"(%d), continuing with MSI\n", rc);
+				"(%d)\n", rc);
 		goto irq_fail_out;
 	}
 
@@ -2278,7 +2335,7 @@ lpfc_enable_msix(struct lpfc_hba *phba)
 		goto mbx_fail_out;
 	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 	if (rc != MBX_SUCCESS) {
-		lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
+		lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
 				"0351 Config MSI mailbox command failed, "
 				"mbxCmd x%x, mbxStatus x%x\n",
 				pmb->mb.mbxCommand, pmb->mb.mbxStatus);
@@ -2327,6 +2384,195 @@ lpfc_disable_msix(struct lpfc_hba *phba)
 }
 
 /**
+ * lpfc_enable_msi: Enable MSI interrupt mode.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to enable the MSI interrupt mode. 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_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_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_disable_msi: Disable MSI interrupt mode.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to disable the MSI interrupt mode. 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_disable_msi(struct lpfc_hba *phba)
+{
+	free_irq(phba->pcidev->irq, phba);
+	pci_disable_msi(phba->pcidev);
+	return;
+}
+
+/**
+ * lpfc_log_intr_mode: Log the active interrupt mode
+ * @phba: pointer to lpfc hba data structure.
+ * @intr_mode: active interrupt mode adopted.
+ *
+ * This routine it invoked to log the currently used active interrupt mode
+ * to the device.
+ */
+static void
+lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
+{
+	switch (intr_mode) {
+	case 0:
+		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+				"0470 Enable INTx interrupt mode.\n");
+		break;
+	case 1:
+		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+				"0481 Enabled MSI interrupt mode.\n");
+		break;
+	case 2:
+		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+				"0480 Enabled MSI-X interrupt mode.\n");
+		break;
+	default:
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"0482 Illegal interrupt mode.\n");
+		break;
+	}
+	return;
+}
+
+static void
+lpfc_stop_port(struct lpfc_hba *phba)
+{
+	/* Clear all interrupt enable conditions */
+	writel(0, phba->HCregaddr);
+	readl(phba->HCregaddr); /* flush */
+	/* Clear all pending interrupts */
+	writel(0xffffffff, phba->HAregaddr);
+	readl(phba->HAregaddr); /* flush */
+
+	/* Reset some HBA SLI setup states */
+	lpfc_stop_phba_timers(phba);
+	phba->pport->work_port_events = 0;
+
+	return;
+}
+
+/**
+ * lpfc_enable_intr: Enable device interrupt.
+ * @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). 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_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, 3);
+		if (!retval) {
+			/* Now, try to enable MSI-X interrupt mode */
+			retval = lpfc_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_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_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_disable_intr: Disable device interrupt.
+ * @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). Depending on the
+ * interrupt mode, the driver will release the interrupt vector(s) for the
+ * message signaled interrupt.
+ **/
+static void
+lpfc_disable_intr(struct lpfc_hba *phba)
+{
+	/* Disable the currently initialized interrupt mode */
+	if (phba->intr_type == MSIX)
+		lpfc_disable_msix(phba);
+	else if (phba->intr_type == MSI)
+		lpfc_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_pci_probe_one: lpfc PCI probe func to register device to PCI subsystem.
  * @pdev: pointer to PCI device
  * @pid: pointer to PCI device identifier
@@ -2356,6 +2602,7 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
 	int error = -ENODEV, retval;
 	int  i, hbq_count;
 	uint16_t iotag;
+	uint32_t cfg_mode, intr_mode;
 	int bars = pci_select_bars(pdev, IORESOURCE_MEM);
 	struct lpfc_adapter_event_header adapter_event;
 
@@ -2409,6 +2656,7 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
 	phba->eratt_poll.data = (unsigned long) phba;
 
 	pci_set_master(pdev);
+	pci_save_state(pdev);
 	pci_try_set_mwi(pdev);
 
 	if (pci_set_dma_mask(phba->pcidev, DMA_64BIT_MASK) != 0)
@@ -2557,7 +2805,6 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
 	lpfc_debugfs_initialize(vport);
 
 	pci_set_drvdata(pdev, shost);
-	phba->intr_type = NONE;
 
 	phba->MBslimaddr = phba->slim_memmap_p;
 	phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
@@ -2565,63 +2812,58 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
 	phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
 	phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
 
-	/* Configure and enable interrupt */
-	if (phba->cfg_use_msi == 2) {
-		/* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
-		error = lpfc_sli_config_port(phba, 3);
-		if (error)
-			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-				"0427 Firmware not capable of SLI 3 mode.\n");
-		else {
-			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-				"0426 Firmware capable of SLI 3 mode.\n");
-			/* Now, try to enable MSI-X interrupt mode */
-			error = lpfc_enable_msix(phba);
-			if (!error) {
-				phba->intr_type = MSIX;
-				lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-						"0430 enable MSI-X mode.\n");
-			}
-		}
-	}
-
-	/* Fallback to MSI if MSI-X initialization failed */
-	if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) {
-		retval = pci_enable_msi(phba->pcidev);
-		if (!retval) {
-			phba->intr_type = MSI;
-			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-					"0473 enable MSI mode.\n");
-		} else
-			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-					"0452 enable IRQ mode.\n");
-	}
-
-	/* MSI-X is the only case the doesn't need to call request_irq */
-	if (phba->intr_type != MSIX) {
-		retval = request_irq(phba->pcidev->irq, lpfc_intr_handler,
-				     IRQF_SHARED, LPFC_DRIVER_NAME, phba);
-		if (retval) {
-			lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0451 Enable "
-					"interrupt handler failed\n");
-			error = retval;
-			goto out_disable_msi;
-		} else if (phba->intr_type != MSI)
-			phba->intr_type = INTx;
-	}
-
+	/* Configure sysfs attributes */
 	if (lpfc_alloc_sysfs_attr(vport)) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"1476 Failed to allocate sysfs attr\n");
 		error = -ENOMEM;
-		goto out_free_irq;
+		goto out_destroy_port;
 	}
 
-	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;
+	cfg_mode = phba->cfg_use_msi;
+	while (true) {
+		/* Configure and enable interrupt */
+		intr_mode = lpfc_enable_intr(phba, cfg_mode);
+		if (intr_mode == LPFC_INTR_ERROR) {
+			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+					"0426 Failed to enable interrupt.\n");
+			goto out_free_sysfs_attr;
+		}
+		/* HBA SLI 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 received */
+		if (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,
+					"0451 Configure interrupt mode (%d) "
+					"failed active interrupt test.\n",
+					intr_mode);
+			if (intr_mode == 0) {
+				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+						"0479 Failed to enable "
+						"interrupt.\n");
+				error = -ENODEV;
+				goto out_remove_device;
+			}
+			/* Stop HBA SLI setups */
+			lpfc_stop_port(phba);
+			/* Disable the current interrupt mode */
+			lpfc_disable_intr(phba);
+			/* Try next level of interrupt mode */
+			cfg_mode = --intr_mode;
+		}
 	}
 
 	/*
@@ -2629,6 +2871,75 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
 	 * the value of can_queue.
 	 */
 	shost->can_queue = phba->cfg_hba_queue_depth - 10;
+	if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
+
+		if (lpfc_prot_mask && lpfc_prot_guard) {
+			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+					"1478 Registering BlockGuard with the "
+					"SCSI layer\n");
+
+			scsi_host_set_prot(shost, lpfc_prot_mask);
+			scsi_host_set_guard(shost, lpfc_prot_guard);
+		}
+	}
+
+	if (!_dump_buf_data) {
+		int pagecnt = 10;
+		while (pagecnt) {
+			spin_lock_init(&_dump_buf_lock);
+			_dump_buf_data =
+				(char *) __get_free_pages(GFP_KERNEL, pagecnt);
+			if (_dump_buf_data) {
+				printk(KERN_ERR "BLKGRD allocated %d pages for "
+						"_dump_buf_data at 0x%p\n",
+						(1 << pagecnt), _dump_buf_data);
+				_dump_buf_data_order = pagecnt;
+				memset(_dump_buf_data, 0, ((1 << PAGE_SHIFT)
+							   << pagecnt));
+				break;
+			} else {
+				--pagecnt;
+			}
+
+		}
+
+		if (!_dump_buf_data_order)
+			printk(KERN_ERR "BLKGRD ERROR unable to allocate "
+					"memory for hexdump\n");
+
+	} else {
+		printk(KERN_ERR "BLKGRD already allocated _dump_buf_data=0x%p"
+		       "\n", _dump_buf_data);
+	}
+
+
+	if (!_dump_buf_dif) {
+		int pagecnt = 10;
+		while (pagecnt) {
+			_dump_buf_dif =
+				(char *) __get_free_pages(GFP_KERNEL, pagecnt);
+			if (_dump_buf_dif) {
+				printk(KERN_ERR "BLKGRD allocated %d pages for "
+						"_dump_buf_dif at 0x%p\n",
+						(1 << pagecnt), _dump_buf_dif);
+				_dump_buf_dif_order = pagecnt;
+				memset(_dump_buf_dif, 0, ((1 << PAGE_SHIFT)
+							  << pagecnt));
+				break;
+			} else {
+				--pagecnt;
+			}
+
+		}
+
+		if (!_dump_buf_dif_order)
+			printk(KERN_ERR "BLKGRD ERROR unable to allocate "
+					"memory for hexdump\n");
+
+	} else {
+		printk(KERN_ERR "BLKGRD already allocated _dump_buf_dif=0x%p\n",
+				_dump_buf_dif);
+	}
 
 	lpfc_host_attrib_init(shost);
 
@@ -2646,29 +2957,22 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
 	fc_host_post_vendor_event(shost, fc_get_event_number(),
 		sizeof(adapter_event),
 		(char *) &adapter_event,
-		SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
-
-	scsi_scan_host(shost);
+		LPFC_NL_VENDOR_ID);
 
 	return 0;
 
 out_remove_device:
-	lpfc_free_sysfs_attr(vport);
 	spin_lock_irq(shost->host_lock);
 	vport->load_flag |= FC_UNLOADING;
 	spin_unlock_irq(shost->host_lock);
-out_free_irq:
 	lpfc_stop_phba_timers(phba);
 	phba->pport->work_port_events = 0;
-
-	if (phba->intr_type == MSIX)
-		lpfc_disable_msix(phba);
-	else
-		free_irq(phba->pcidev->irq, phba);
-
-out_disable_msi:
-	if (phba->intr_type == MSI)
-		pci_disable_msi(phba->pcidev);
+	lpfc_disable_intr(phba);
+	lpfc_sli_hba_down(phba);
+	lpfc_sli_brdrestart(phba);
+out_free_sysfs_attr:
+	lpfc_free_sysfs_attr(vport);
+out_destroy_port:
 	destroy_port(vport);
 out_kthread_stop:
 	kthread_stop(phba->worker_thread);
@@ -2709,7 +3013,7 @@ out:
  * @pdev: pointer to PCI device
  *
  * This routine is to be registered to the kernel's PCI subsystem. When an
- * Emulex HBA is removed from PCI bus. It perform all the necessary cleanup
+ * Emulex HBA 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
@@ -2717,18 +3021,27 @@ lpfc_pci_remove_one(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);
 
-	kfree(vport->vname);
 	lpfc_free_sysfs_attr(vport);
 
 	kthread_stop(phba->worker_thread);
 
+	/* Release all the vports against this physical port */
+	vports = lpfc_create_vport_work_array(phba);
+	if (vports != NULL)
+		for (i = 1; i <= phba->max_vpi && 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);
@@ -2748,13 +3061,8 @@ lpfc_pci_remove_one(struct pci_dev *pdev)
 
 	lpfc_debugfs_terminate(vport);
 
-	if (phba->intr_type == MSIX)
-		lpfc_disable_msix(phba);
-	else {
-		free_irq(phba->pcidev->irq, phba);
-		if (phba->intr_type == MSI)
-			pci_disable_msi(phba->pcidev);
-	}
+	/* Disable interrupt */
+	lpfc_disable_intr(phba);
 
 	pci_set_drvdata(pdev, NULL);
 	scsi_host_put(shost);
@@ -2786,6 +3094,115 @@ lpfc_pci_remove_one(struct pci_dev *pdev)
 }
 
 /**
+ * lpfc_pci_suspend_one: lpfc PCI func to suspend device for power management.
+ * @pdev: pointer to PCI device
+ * @msg: power management message
+ *
+ * This routine is to be registered to the kernel's PCI subsystem to support
+ * system Power Management (PM). 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 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(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;
+
+	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+			"0473 PCI device Power Management suspend.\n");
+
+	/* Bring down the device */
+	lpfc_offline_prep(phba);
+	lpfc_offline(phba);
+	kthread_stop(phba->worker_thread);
+
+	/* Disable interrupt from device */
+	lpfc_disable_intr(phba);
+
+	/* Save device state to PCI config space */
+	pci_save_state(pdev);
+	pci_set_power_state(pdev, PCI_D3hot);
+
+	return 0;
+}
+
+/**
+ * lpfc_pci_resume_one: lpfc PCI func to resume device for power management.
+ * @pdev: pointer to PCI device
+ *
+ * This routine is to be registered to the kernel's PCI subsystem to support
+ * system Power Management (PM). 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 int
+lpfc_pci_resume_one(struct pci_dev *pdev)
+{
+	struct Scsi_Host *shost = pci_get_drvdata(pdev);
+	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+	uint32_t intr_mode;
+	int error;
+
+	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+			"0452 PCI device Power Management resume.\n");
+
+	/* 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);
+
+	/* 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;
+	}
+
+	/* Configure and enable interrupt */
+	intr_mode = lpfc_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: Driver method for handling PCI I/O error detected.
  * @pdev: pointer to PCI device.
  * @state: the current PCI connection state.
@@ -2828,13 +3245,8 @@ static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev,
 	pring = &psli->ring[psli->fcp_ring];
 	lpfc_sli_abort_iocb_ring(phba, pring);
 
-	if (phba->intr_type == MSIX)
-		lpfc_disable_msix(phba);
-	else {
-		free_irq(phba->pcidev->irq, phba);
-		if (phba->intr_type == MSI)
-			pci_disable_msi(phba->pcidev);
-	}
+	/* Disable interrupt */
+	lpfc_disable_intr(phba);
 
 	/* Request a slot reset. */
 	return PCI_ERS_RESULT_NEED_RESET;
@@ -2862,7 +3274,7 @@ static pci_ers_result_t lpfc_io_slot_reset(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;
-	int error, retval;
+	uint32_t intr_mode;
 
 	dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
 	if (pci_enable_device_mem(pdev)) {
@@ -2871,61 +3283,31 @@ static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev)
 		return PCI_ERS_RESULT_DISCONNECT;
 	}
 
-	pci_set_master(pdev);
+	pci_restore_state(pdev);
+	if (pdev->is_busmaster)
+		pci_set_master(pdev);
 
 	spin_lock_irq(&phba->hbalock);
 	psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
 	spin_unlock_irq(&phba->hbalock);
 
-	/* Enable configured interrupt method */
-	phba->intr_type = NONE;
-	if (phba->cfg_use_msi == 2) {
-		/* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
-		error = lpfc_sli_config_port(phba, 3);
-		if (error)
-			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-				"0478 Firmware not capable of SLI 3 mode.\n");
-		else {
-			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-				"0479 Firmware capable of SLI 3 mode.\n");
-			/* Now, try to enable MSI-X interrupt mode */
-			error = lpfc_enable_msix(phba);
-			if (!error) {
-				phba->intr_type = MSIX;
-				lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-						"0480 enable MSI-X mode.\n");
-			}
-		}
-	}
-
-	/* Fallback to MSI if MSI-X initialization failed */
-	if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) {
-		retval = pci_enable_msi(phba->pcidev);
-		if (!retval) {
-			phba->intr_type = MSI;
-			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-					"0481 enable MSI mode.\n");
-		} else
-			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-					"0470 enable IRQ mode.\n");
-	}
-
-	/* MSI-X is the only case the doesn't need to call request_irq */
-	if (phba->intr_type != MSIX) {
-		retval = request_irq(phba->pcidev->irq, lpfc_intr_handler,
-				     IRQF_SHARED, LPFC_DRIVER_NAME, phba);
-		if (retval) {
-			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-					"0471 Enable interrupt handler "
-					"failed\n");
-		} else if (phba->intr_type != MSI)
-			phba->intr_type = INTx;
-	}
+	/* Configure and enable interrupt */
+	intr_mode = lpfc_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;
 }
 
@@ -3037,6 +3419,8 @@ static struct pci_driver lpfc_driver = {
 	.id_table	= lpfc_id_table,
 	.probe		= lpfc_pci_probe_one,
 	.remove		= __devexit_p(lpfc_pci_remove_one),
+	.suspend        = lpfc_pci_suspend_one,
+	.resume         = lpfc_pci_resume_one,
 	.err_handler    = &lpfc_err_handler,
 };
 
@@ -3100,6 +3484,19 @@ lpfc_exit(void)
 	fc_release_transport(lpfc_transport_template);
 	if (lpfc_enable_npiv)
 		fc_release_transport(lpfc_vport_transport_template);
+	if (_dump_buf_data) {
+		printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_data "
+				"at 0x%p\n",
+				(1L << _dump_buf_data_order), _dump_buf_data);
+		free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
+	}
+
+	if (_dump_buf_dif) {
+		printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_dif "
+				"at 0x%p\n",
+				(1L << _dump_buf_dif_order), _dump_buf_dif);
+		free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
+	}
 }
 
 module_init(lpfc_init);