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authorJames Smart <James.Smart@Emulex.Com>2008-04-07 10:16:00 -0400
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-04-10 07:52:36 -0500
commit9b37960523afb1b519b406dec4c4f3155b82b2ba (patch)
treeb6a2d07f0f441911c4f7d7580770c23f90c5167e /drivers/scsi/lpfc/lpfc_init.c
parent58da1ffb2b1234e9c6c75013a649c659cc38ebd4 (diff)
[SCSI] lpfc 8.2.6 : PCI Parity and EEH handling fixes
PCI Parity and EEH handling Fixes: - Under a PCI Data Parity Error, remove a completion routine callback that was on a command that we had already failed and released. - Under PCI parity error, we were not reinstalling the interrupt handler in the slot_reset callback, so we never became functional again. Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_init.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_init.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 26c67c866d1f..dba6770b506b 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -2371,6 +2371,7 @@ 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;
dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
if (pci_enable_device_mem(pdev)) {
@@ -2385,6 +2386,36 @@ static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev)
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) {
+ error = lpfc_enable_msix(phba);
+ if (!error)
+ phba->intr_type = MSIX;
+ }
+
+ /* 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;
+ else
+ lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+ "0470 Enable MSI failed, continuing "
+ "with IRQ\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;
+ }
/* Take device offline; this will perform cleanup */
lpfc_offline(phba);