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path: root/drivers/scsi/lpfc/lpfc_init.c
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Diffstat (limited to 'drivers/scsi/lpfc/lpfc_init.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_init.c685
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);