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[SCSI] Do not retry a request whose data integrity check failed
If initiator or target reject the I/O due to DIF errors there is no point in retrying. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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2 changed files with 10 additions and 2 deletions
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@ -344,6 +344,9 @@ static int scsi_check_sense(struct scsi_cmnd *scmd)
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return /* soft_error */ SUCCESS;
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case ABORTED_COMMAND:
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if (sshdr.asc == 0x10) /* DIF */
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return SUCCESS;
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return NEEDS_RETRY;
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case NOT_READY:
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case UNIT_ATTENTION:
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@ -950,9 +950,14 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes)
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* 6-byte command.
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*/
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scsi_requeue_command(q, cmd);
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return;
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} else {
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} else if (sshdr.asc == 0x10) /* DIX */
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scsi_end_request(cmd, -EIO, this_count, 0);
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else
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scsi_end_request(cmd, -EIO, this_count, 1);
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return;
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case ABORTED_COMMAND:
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if (sshdr.asc == 0x10) { /* DIF */
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scsi_end_request(cmd, -EIO, this_count, 0);
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return;
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}
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break;
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