"changed. The Linux SCSI layer does not "
"automatically adjust these parameters.\n");
- if (blk_barrier_rq(scmd->request))
+ if (scmd->request->cmd_flags & REQ_HARDBARRIER)
/*
* barrier requests should always retry on UA
* otherwise block will get a spurious error
*/
return SUCCESS;
case RESERVATION_CONFLICT:
- /*
- * let issuer deal with this, it could be just fine
- */
- return SUCCESS;
+ if (scmd->cmnd[0] == TEST_UNIT_READY)
+ /* it is a success, we probed the device and
+ * found it */
+ return SUCCESS;
+ /* otherwise, we failed to send the command */
+ return FAILED;
case QUEUE_FULL:
scsi_handle_queue_full(scmd->device);
/* fall through */
case BUSY:
+ return NEEDS_RETRY;
default:
return FAILED;
}
case DID_OK:
break;
case DID_BUS_BUSY:
- return blk_failfast_transport(scmd->request);
+ return (scmd->request->cmd_flags & REQ_FAILFAST_TRANSPORT);
case DID_PARITY:
- return blk_failfast_dev(scmd->request);
+ return (scmd->request->cmd_flags & REQ_FAILFAST_DEV);
case DID_ERROR:
if (msg_byte(scmd->result) == COMMAND_COMPLETE &&
status_byte(scmd->result) == RESERVATION_CONFLICT)
return 0;
/* fall through */
case DID_SOFT_ERROR:
- return blk_failfast_driver(scmd->request);
+ return (scmd->request->cmd_flags & REQ_FAILFAST_DRIVER);
}
switch (status_byte(scmd->result)) {
* assume caller has checked sense and determinted
* the check condition was retryable.
*/
- return blk_failfast_dev(scmd->request);
+ if (scmd->request->cmd_flags & REQ_FAILFAST_DEV ||
+ scmd->request->cmd_type == REQ_TYPE_BLOCK_PC)
+ return 1;
}
return 0;