From: Javed Hasan <jhasan@marvell.com>
Date: Thu, 26 Mar 2020 23:02:07 -0700
Subject: scsi: libfc: If PRLI rejected, move rport to PLOGI state
Patch-mainline: v5.7-rc1
Git-commit: 45e544bfdab2014d11c7595b8ccc3c4715a09015
References: bsc#1173849
If PRLI reject code indicates "rejected status", move rport state machine
back to PLOGI state.
Link: https://lore.kernel.org/r/20200327060208.17104-2-skashyap@marvell.com
Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Daniel Wagner <dwagner@suse.de>
---
drivers/scsi/libfc/fc_rport.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
--- a/drivers/scsi/libfc/fc_rport.c
+++ b/drivers/scsi/libfc/fc_rport.c
@@ -1208,9 +1208,15 @@ static void fc_rport_prli_resp(struct fc
rjt = fc_frame_payload_get(fp, sizeof(*rjt));
if (!rjt)
FC_RPORT_DBG(rdata, "PRLI bad response\n");
- else
+ else {
FC_RPORT_DBG(rdata, "PRLI ELS rejected, reason %x expl %x\n",
rjt->er_reason, rjt->er_explan);
+ if (rjt->er_reason == ELS_RJT_UNAB &&
+ rjt->er_explan == ELS_EXPL_PLOGI_REQD) {
+ fc_rport_enter_plogi(rdata);
+ goto out;
+ }
+ }
fc_rport_error_retry(rdata, FC_EX_ELS_RJT);
}