From b6474465e962369c1cd4b00324c2e175e2cf30cf Mon Sep 17 00:00:00 2001
From: James Smart <jsmart2021@gmail.com>
Date: Tue, 12 Apr 2022 15:19:47 -0700
Subject: [PATCH] scsi: lpfc: Requeue SCSI I/O to upper layer when fw reports
 link down

During heavy I/O stress tests with 100+ vports and cable pulls, it may take
a while before the vport logs back into the fabric to resume I/O.

Currently, the driver immediately fails the I/O with DID_ERROR.

Change behavior to return DID_REQUEUE, and rely on SCSI layer's max retry
of 5 before erroring out the I/O.

Link: https://lore.kernel.org/r/20220412222008.126521-6-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
---
 drivers/scsi/lpfc/lpfc_scsi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index ba9dbb51b75f..ae340850d94f 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -4276,6 +4276,7 @@ lpfc_fcp_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn,
 			break;
 		}
 		if (lpfc_cmd->result == IOERR_INVALID_RPI ||
+		    lpfc_cmd->result == IOERR_LINK_DOWN ||
 		    lpfc_cmd->result == IOERR_NO_RESOURCES ||
 		    lpfc_cmd->result == IOERR_ABORT_REQUESTED ||
 		    lpfc_cmd->result == IOERR_RPI_SUSPENDED ||
-- 
2.30.9