[libata scsi] add ata_scsi_set_sense helper
- add extern ata_scsi_set_sense() to build SCSI fixed sense data and corresponding SCSI status Signed-off-by: Douglas Gilbert <dougg@torque.net> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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@ -1450,6 +1450,34 @@ unsigned int ata_scsiop_report_luns(struct ata_scsi_args *args, u8 *rbuf,
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return 0;
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}
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/**
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* ata_scsi_set_sense - Set SCSI sense data and status
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* @cmd: SCSI request to be handled
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* @sk: SCSI-defined sense key
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* @asc: SCSI-defined additional sense code
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* @ascq: SCSI-defined additional sense code qualifier
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*
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* Helper function that builds a valid fixed format, current
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* response code and the given sense key (sk), additional sense
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* code (asc) and additional sense code qualifier (ascq) with
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* a SCSI command status of %SAM_STAT_CHECK_CONDITION and
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* DRIVER_SENSE set in the upper bits of scsi_cmnd::result .
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*
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* LOCKING:
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* Not required
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*/
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void ata_scsi_set_sense(struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq)
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{
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cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
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cmd->sense_buffer[0] = 0x70; /* fixed format, current */
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cmd->sense_buffer[2] = sk;
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cmd->sense_buffer[7] = 18 - 8; /* additional sense length */
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cmd->sense_buffer[12] = asc;
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cmd->sense_buffer[13] = ascq;
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}
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/**
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* ata_scsi_badcmd - End a SCSI request with an error
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* @cmd: SCSI request to be handled
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@ -80,6 +80,8 @@ extern unsigned int ata_scsiop_report_luns(struct ata_scsi_args *args, u8 *rbuf,
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extern void ata_scsi_badcmd(struct scsi_cmnd *cmd,
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void (*done)(struct scsi_cmnd *),
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u8 asc, u8 ascq);
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extern void ata_scsi_set_sense(struct scsi_cmnd *cmd,
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u8 sk, u8 asc, u8 ascq);
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extern void ata_scsi_rbuf_fill(struct ata_scsi_args *args,
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unsigned int (*actor) (struct ata_scsi_args *args,
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u8 *rbuf, unsigned int buflen));
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