[PATCH v12 17/20] scsi: ses: Have scsi-ml retry scsi_execute_cmd errors

Mike Christie
2023-11-14T01:40:29Z

This has ses have scsi-ml retry scsi_execute_cmd errors instead of
driving them itself.

Signed-off-by: Mike Christie <michael.christie@oracle.com>
---
drivers/scsi/ses.c | 66 ++++++++++++++++++++++++++++++++--------------
1 file changed, 46 insertions(+), 20 deletions(-)

diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c
index d7d0c35c58b8..0f2c87cc95e6 100644
--- a/drivers/scsi/ses.c
+++ b/drivers/scsi/ses.c
@@ -87,19 +87,32 @@ static int ses_recv_diag(struct scsi_device *sdev, int page_code,
0
};
unsigned char recv_page_code;
- unsigned int retries = SES_RETRIES;
- struct scsi_sense_hdr sshdr;
+ struct scsi_failure failure_defs[] = {
+ {
+ .sense = UNIT_ATTENTION,
+ .asc = 0x29,
+ .ascq = SCMD_FAILURE_ASCQ_ANY,
+ .allowed = SES_RETRIES,
+ .result = SAM_STAT_CHECK_CONDITION,
+ },
+ {
+ .sense = NOT_READY,
+ .asc = SCMD_FAILURE_ASC_ANY,
+ .ascq = SCMD_FAILURE_ASCQ_ANY,
+ .allowed = SES_RETRIES,
+ .result = SAM_STAT_CHECK_CONDITION,
+ },
+ {}
+ };
+ struct scsi_failures failures = {
+ .failure_definitions = failure_defs,
+ };
const struct scsi_exec_args exec_args = {
- .sshdr = &sshdr,
+ .failures = &failures,
};

- do {
- ret = scsi_execute_cmd(sdev, cmd, REQ_OP_DRV_IN, buf, bufflen,
- SES_TIMEOUT, 1, &exec_args);
- } while (ret > 0 && --retries && scsi_sense_valid(&sshdr) &&
- (sshdr.sense_key == NOT_READY ||
- (sshdr.sense_key == UNIT_ATTENTION && sshdr.asc == 0x29)));
-
+ ret = scsi_execute_cmd(sdev, cmd, REQ_OP_DRV_IN, buf, bufflen,
+ SES_TIMEOUT, 1, &exec_args);
if (unlikely(ret))
return ret;

@@ -131,19 +144,32 @@ static int ses_send_diag(struct scsi_device *sdev, int page_code,
bufflen & 0xff,
0
};
- struct scsi_sense_hdr sshdr;
- unsigned int retries = SES_RETRIES;
+ struct scsi_failure failure_defs[] = {
+ {
+ .sense = UNIT_ATTENTION,
+ .asc = 0x29,
+ .ascq = SCMD_FAILURE_ASCQ_ANY,
+ .allowed = SES_RETRIES,
+ .result = SAM_STAT_CHECK_CONDITION,
+ },
+ {
+ .sense = NOT_READY,
+ .asc = SCMD_FAILURE_ASC_ANY,
+ .ascq = SCMD_FAILURE_ASCQ_ANY,
+ .allowed = SES_RETRIES,
+ .result = SAM_STAT_CHECK_CONDITION,
+ },
+ {}
+ };
+ struct scsi_failures failures = {
+ .failure_definitions = failure_defs,
+ };
const struct scsi_exec_args exec_args = {
- .sshdr = &sshdr,
+ .failures = &failures,
};

- do {
- result = scsi_execute_cmd(sdev, cmd, REQ_OP_DRV_OUT, buf,
- bufflen, SES_TIMEOUT, 1, &exec_args);
- } while (result > 0 && --retries && scsi_sense_valid(&sshdr) &&
- (sshdr.sense_key == NOT_READY ||
- (sshdr.sense_key == UNIT_ATTENTION && sshdr.asc == 0x29)));
-
+ result = scsi_execute_cmd(sdev, cmd, REQ_OP_DRV_OUT, buf, bufflen,
+ SES_TIMEOUT, 1, &exec_args);
if (result)
sdev_printk(KERN_ERR, sdev, "SEND DIAGNOSTIC result: %8x\n",
result);
--
2.34.1