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scsi: lpfc: Requeue SCSI I/O to upper layer when fw reports link down

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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>
This commit is contained in:
James Smart
2022-04-12 15:19:47 -07:00
committed by Martin K. Petersen
parent 787d0580ca
commit b6474465e9
1 changed files with 1 additions and 0 deletions
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drivers/scsi/lpfc/lpfc_scsi.c
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@@ -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 ||