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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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11
drivers/scsi/lpfc/lpfc_sli.c
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@@ -18712,15 +18712,8 @@ next_priority:
goto initial_priority;
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
"2844 No roundrobin failover FCF available\n");
if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
return LPFC_FCOE_FCF_NEXT_NONE;
else {
lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
"3063 Only FCF available idx %d, flag %x\n",
next_fcf_index,
phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag);
return next_fcf_index;
}
return LPFC_FCOE_FCF_NEXT_NONE;
}
if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&