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[05/26] lpfc: Requeue SCSI I/O to upper layer when fw reports link down

Message ID 20220412222008.126521-6-jsmart2021@gmail.com (mailing list archive)
State Accepted
Headers show
Series lpfc: Update lpfc to revision 14.2.0.2 | expand

Commit Message

James Smart April 12, 2022, 10:19 p.m. UTC 
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.

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>
---
 drivers/scsi/lpfc/lpfc_scsi.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

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 ||