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| author | Hannes Reinecke <hare@suse.de> | 2016-04-04 12:43:54 +0300 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2016-04-04 19:07:40 +0300 |
| commit | 5b01e4b9efa0b78672cbbea830c9fbcc7f239e29 (patch) | |
| tree | 86eab8729d8327160e5c632befcea455a6e3bd32 /drivers/ata/libata-scsi.c | |
| parent | d991c872ac7ffaacc4df93efbfbcb4189cee6440 (diff) | |
| download | linux-5b01e4b9efa0b78672cbbea830c9fbcc7f239e29.tar.xz | |
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 | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 567859ce0512..6dc2fadfd7c5 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); @@ -1784,6 +1787,8 @@ static void ata_scsi_qc_complete(struct ata_queued_cmd *qc) if (((cdb[0] == ATA_16) || (cdb[0] == ATA_12)) && ((cdb[2] & 0x20) || need_sense)) ata_gen_passthru_sense(qc); + else if (qc->flags & ATA_QCFLAG_SENSE_VALID) + cmd->result = SAM_STAT_CHECK_CONDITION; else if (need_sense) ata_gen_ata_sense(qc); else |