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| author | James Smart <jsmart2021@gmail.com> | 2021-12-03 16:26:37 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-12-06 22:35:36 -0500 |
| commit | 2e81b1a374da5d6024208c16c4a5224a70cafa64 (patch) | |
| tree | b2c3a64dad193093fa838ad9582eb98ad3163b29 /drivers/scsi/lpfc | |
| parent | f0d3919697492950f57a26a1093aee53880d669d (diff) | |
| download | linux-2e81b1a374da5d6024208c16c4a5224a70cafa64.tar.gz linux-2e81b1a374da5d6024208c16c4a5224a70cafa64.tar.bz2 linux-2e81b1a374da5d6024208c16c4a5224a70cafa64.zip | |
scsi: lpfc: Change return code on I/Os received during link bounce
During heavy I/O testing with issue_lip to bounce the link, occasionally
I/O is terminated with status 3 result 9, which means the RPI is suspended.
The I/O is completed and this type of error will result in immediate retry
by the SCSI layer. The retry count expires and the I/O fails and returns
error to the application.
To avoid these quick retry/retries exhausted scenarios change the return
code given to the midlayer to DID_REQUEUE rather than DID_ERROR. This gets
them retried, and eventually succeed when the link recovers.
Link: https://lore.kernel.org/r/20211204002644.116455-3-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>
Diffstat (limited to 'drivers/scsi/lpfc')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_hw.h | 2 | ||||
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_scsi.c | 8 |
2 files changed, 6 insertions, 4 deletions
diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h index 634f8fff7425..61c9db31d9da 100644 --- a/drivers/scsi/lpfc/lpfc_hw.h +++ b/drivers/scsi/lpfc/lpfc_hw.h @@ -3746,7 +3746,7 @@ typedef struct { #define IOERR_ILLEGAL_COMMAND 0x06 #define IOERR_XCHG_DROPPED 0x07 #define IOERR_ILLEGAL_FIELD 0x08 -#define IOERR_BAD_CONTINUE 0x09 +#define IOERR_RPI_SUSPENDED 0x09 #define IOERR_TOO_MANY_BUFFERS 0x0A #define IOERR_RCV_BUFFER_WAITING 0x0B #define IOERR_NO_CONNECTION 0x0C diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 6ccf573acdec..5a3da38a9067 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -4393,6 +4393,7 @@ lpfc_fcp_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn, if (lpfc_cmd->result == IOERR_INVALID_RPI || lpfc_cmd->result == IOERR_NO_RESOURCES || lpfc_cmd->result == IOERR_ABORT_REQUESTED || + lpfc_cmd->result == IOERR_RPI_SUSPENDED || lpfc_cmd->result == IOERR_SLER_CMD_RCV_FAILURE) { cmd->result = DID_REQUEUE << 16; break; @@ -4448,10 +4449,11 @@ lpfc_fcp_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn, lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, "9039 Iodone <%d/%llu> cmd x%px, error " - "x%x SNS x%x x%x Data: x%x x%x\n", + "x%x SNS x%x x%x LBA x%llx Data: x%x x%x\n", cmd->device->id, cmd->device->lun, cmd, - cmd->result, *lp, *(lp + 3), cmd->retries, - scsi_get_resid(cmd)); + cmd->result, *lp, *(lp + 3), + (u64)scsi_get_lba(cmd), + cmd->retries, scsi_get_resid(cmd)); } lpfc_update_stats(vport, lpfc_cmd); |