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scsi: lpfc: fcoe: Fix link down issue after 1000+ link bounces

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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>
This commit is contained in:
James Smart
2018-10-23 13:41:06 -07:00
committed by Martin K. Petersen
parent 191e2f7493
commit 036cad1f1a
5 changed files with 26 additions and 10 deletions
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2
drivers/scsi/lpfc/lpfc_init.c
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@@ -5069,7 +5069,7 @@ lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
break;
}
/* If fast FCF failover rescan event is pending, do nothing */
if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
spin_unlock_irq(&phba->hbalock);
break;
}