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authorJames Smart <jsmart2021@gmail.com>2018-10-23 13:41:06 -0700
committerMartin K. Petersen <martin.petersen@oracle.com>2018-11-06 20:42:51 -0500
commit036cad1f1ac9ce03e2db94b8460f98eaf1e1ee4c (patch)
tree0dd9854f93ce4e558848f9fc2e138221b2f5f5f6 /drivers/scsi/lpfc/lpfc_els.c
parentscsi: lpfc: Correct errors accessing fw log (diff)
downloadlinux-dev-036cad1f1ac9ce03e2db94b8460f98eaf1e1ee4c.tar.xz
linux-dev-036cad1f1ac9ce03e2db94b8460f98eaf1e1ee4c.zip
scsi: lpfc: fcoe: Fix link down issue after 1000+ link bounces
On FCoE adapters, when running link bounce test in a loop, initiator failed to login with switch switch and required driver reload to recover. Switch reached a point where all subsequent FLOGIs would be LS_RJT'd. Further testing showed the condition to be related to not performing FCF discovery between FLOGI's. Fix by monitoring FLOGI failures and once a repeated error is seen repeat FCF discovery. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_els.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_els.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index e3e851931394..25625c03a5b3 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -1157,6 +1157,7 @@ stop_rr_fcf_flogi:
phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
spin_unlock_irq(&phba->hbalock);
+ phba->fcf.fcf_redisc_attempted = 0; /* reset */
goto out;
}
if (!rc) {
@@ -1171,6 +1172,7 @@ stop_rr_fcf_flogi:
phba->fcf.fcf_flag &= ~FCF_DISCOVERY;
phba->hba_flag &= ~(FCF_RR_INPROG | HBA_DEVLOSS_TMO);
spin_unlock_irq(&phba->hbalock);
+ phba->fcf.fcf_redisc_attempted = 0; /* reset */
goto out;
}
}