diff options
| author | Hannes Reinecke <hare@suse.de> | 2015-03-27 16:46:35 +0100 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2015-03-27 11:59:22 -0400 |
| commit | 42b966fbf35da9c87f08d98f9b8978edf9e717cf (patch) | |
| tree | a7fd32da1b3a746cab71966d42a08aeeb0d7203d /drivers/ata/libata-scsi.c | |
| parent | 1308d7f0107b264b480e7048dc345fc6b7408e7e (diff) | |
libata: Implement NCQ autosense
Some newer devices support NCQ autosense (cf ACS-4), so we should
be using it to retrieve the sense code and speed up recovery.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/ata/libata-scsi.c')
| -rw-r--r-- | drivers/ata/libata-scsi.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index bb57d81083ca..3ac5be3acdbe 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -270,8 +270,11 @@ DEVICE_ATTR(unload_heads, S_IRUGO | S_IWUSR, ata_scsi_park_show, ata_scsi_park_store); EXPORT_SYMBOL_GPL(dev_attr_unload_heads); -static void ata_scsi_set_sense(struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq) +void ata_scsi_set_sense(struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq) { + if (!cmd) + return; + cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION; scsi_build_sense_buffer(0, cmd->sense_buffer, sk, asc, ascq); @@ -1777,7 +1780,9 @@ static void ata_scsi_qc_complete(struct ata_queued_cmd *qc) ((cdb[2] & 0x20) || need_sense)) { ata_gen_passthru_sense(qc); } else { - if (!need_sense) { + if (qc->flags & ATA_QCFLAG_SENSE_VALID) { + cmd->result = SAM_STAT_CHECK_CONDITION; + } else if (!need_sense) { cmd->result = SAM_STAT_GOOD; } else { /* TODO: decide which descriptor format to use |