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| author | Adam Manzanares <adam.manzanares@hgst.com> | 2016-10-17 11:27:30 -0700 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2016-10-19 14:34:36 -0400 |
| commit | 84f95243b5439a20c33837075b88926bfa00c4ec (patch) | |
| tree | c1a795666af16d26984bdfda3cfaef4dfc659c93 /drivers/ata/libata-core.c | |
| parent | 8e061784b51ec4a4efed0deaafb5bd9725bf5b06 (diff) | |
| download | op-kernel-dev-84f95243b5439a20c33837075b88926bfa00c4ec.zip op-kernel-dev-84f95243b5439a20c33837075b88926bfa00c4ec.tar.gz | |
ata: ATA Command Priority Disabled By Default
Add a sysfs entry to turn on priority information being passed
to a ATA device. By default this feature is turned off.
This patch depends on ata: Enabling ATA Command Priorities
tj: Renamed ncq_prio_on to ncq_prio_enable and removed trivial
ata_ncq_prio_on() and open-coded the test.
Signed-off-by: Adam Manzanares <adam.manzanares@hgst.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/ata/libata-core.c')
| -rw-r--r-- | drivers/ata/libata-core.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 8346faf..b294339 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -787,7 +787,8 @@ int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev, if (tf->flags & ATA_TFLAG_FUA) tf->device |= 1 << 7; - if (dev->flags & ATA_DFLAG_NCQ_PRIO) { + if ((dev->flags & ATA_DFLAG_NCQ_PRIO) && + (dev->flags & ATA_DFLAG_NCQ_PRIO_ENABLE)) { if (class == IOPRIO_CLASS_RT) tf->hob_nsect |= ATA_PRIO_HIGH << ATA_SHIFT_PRIO; |
