scsi: lpfc: fcoe: Fix link down issue after 1000+ link bounces
authorJames Smart <jsmart2021@gmail.com>
Tue, 23 Oct 2018 20:41:06 +0000 (13:41 -0700)
committerMartin K. Petersen <martin.petersen@oracle.com>
Wed, 7 Nov 2018 01:42:51 +0000 (20:42 -0500)
commit036cad1f1ac9ce03e2db94b8460f98eaf1e1ee4c
tree0dd9854f93ce4e558848f9fc2e138221b2f5f5f6
parent191e2f749370ea7f319c2b1d626e459f4ee37384
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>
drivers/scsi/lpfc/lpfc_els.c
drivers/scsi/lpfc/lpfc_hbadisc.c
drivers/scsi/lpfc/lpfc_init.c
drivers/scsi/lpfc/lpfc_sli.c
drivers/scsi/lpfc/lpfc_sli4.h