From: James Smart <jsmart2021@gmail.com>
Date: Fri, 8 Dec 2017 17:18:08 -0800
Subject: [PATCH] scsi: lpfc: Fix issues connecting with nvme initiator
References: bsc#1076693
Git-commit: e06351a002214d152142906a546006e3446d1ef7
Patch-mainline: v4.16-rc1
In the lpfc discovery engine, when as a nvme target, where the driver
was performing mailbox io with the adapter for port login when a NVME
PRLI is received from the host. Rather than queue and eventually get
back to sending a response after the mailbox traffic, the driver
rejected the io with an error response.
Turns out this particular initiator didn't like the rejection values
(unable to process command/command in progress) so it never attempted a
retry of the PRLI. Thus the host never established nvme connectivity
with the lpfc target.
By changing the rejection values (to Logical Busy/nothing more), the
initiator accepted the response and would retry the PRLI, resulting in
nvme connectivity.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
---
drivers/scsi/lpfc/lpfc_nportdisc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index 283382ac0456..d841aa42f607 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -1603,8 +1603,8 @@ lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport,
* rpi registration does complete.
*/
memset(&stat, 0, sizeof(struct ls_rjt));
- stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
- stat.un.b.lsRjtRsnCodeExp = LSEXP_CMD_IN_PROGRESS;
+ stat.un.b.lsRjtRsnCode = LSRJT_LOGICAL_BSY;
+ stat.un.b.lsRjtRsnCodeExp = LSEXP_NOTHING_MORE;
lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb,
ndlp, NULL);
return ndlp->nlp_state;
--
2.12.3