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[SCSI] lpfc 8.3.7: Fix SCSI protocol related errors. 

Fix SCSI protocol related errors:
- Avoid I/O failures during EEH and HBA/CNA reset by correcting when
  we block the targets on the adapter.

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
James Smart 2009-12-21 17:02:51 -05:00 committed by James Bottomley
parent def9c7a994
commit aacc20e35e
2 changed files with 7 additions and 2 deletions
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4
drivers/scsi/lpfc/lpfc_hbadisc.c
View File

@ -747,6 +747,10 @@ lpfc_linkdown(struct lpfc_hba *phba)
if (phba->link_state == LPFC_LINK_DOWN) if (phba->link_state == LPFC_LINK_DOWN)
return 0; return 0;
/* Block all SCSI stack I/Os */
lpfc_scsi_dev_block(phba);
spin_lock_irq(&phba->hbalock); spin_lock_irq(&phba->hbalock);
phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_DISCOVERED); phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_DISCOVERED);
if (phba->link_state > LPFC_LINK_DOWN) { if (phba->link_state > LPFC_LINK_DOWN) {

5
drivers/scsi/lpfc/lpfc_init.c
View File

@ -7226,8 +7226,6 @@ lpfc_prep_dev_for_perm_failure(struct lpfc_hba *phba)
{ {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT, lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2711 PCI channel permanent disable for failure\n"); "2711 PCI channel permanent disable for 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 */ /* Clean up all driver's outstanding SCSI I/Os */
lpfc_sli_flush_fcp_rings(phba); lpfc_sli_flush_fcp_rings(phba);
} }
@ -7256,6 +7254,9 @@ lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
struct Scsi_Host *shost = pci_get_drvdata(pdev); struct Scsi_Host *shost = pci_get_drvdata(pdev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
/* Block all SCSI devices' I/Os on the host */
lpfc_scsi_dev_block(phba);
switch (state) { switch (state) {
case pci_channel_io_normal: case pci_channel_io_normal:
/* Non-fatal error, prepare for recovery */ /* Non-fatal error, prepare for recovery */