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authorAdam Manzanares <adam.manzanares@hgst.com>2016-10-17 11:27:30 -0700
committerTejun Heo <tj@kernel.org>2016-10-19 14:34:36 -0400
commit84f95243b5439a20c33837075b88926bfa00c4ec (patch)
treec1a795666af16d26984bdfda3cfaef4dfc659c93 /include/linux/libata.h
parent8e061784b51ec4a4efed0deaafb5bd9725bf5b06 (diff)
downloadop-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 'include/linux/libata.h')
-rw-r--r--include/linux/libata.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 90b69a6..c170be5 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -167,6 +167,7 @@ enum {
ATA_DFLAG_UNLOCK_HPA = (1 << 18), /* unlock HPA */
ATA_DFLAG_NCQ_SEND_RECV = (1 << 19), /* device supports NCQ SEND and RECV */
ATA_DFLAG_NCQ_PRIO = (1 << 20), /* device supports NCQ priority */
+ ATA_DFLAG_NCQ_PRIO_ENABLE = (1 << 21), /* Priority cmds sent to dev */
ATA_DFLAG_INIT_MASK = (1 << 24) - 1,
ATA_DFLAG_DETACH = (1 << 24),
@@ -545,6 +546,7 @@ typedef void (*ata_postreset_fn_t)(struct ata_link *link, unsigned int *classes)
extern struct device_attribute dev_attr_link_power_management_policy;
extern struct device_attribute dev_attr_unload_heads;
+extern struct device_attribute dev_attr_ncq_prio_enable;
extern struct device_attribute dev_attr_em_message_type;
extern struct device_attribute dev_attr_em_message;
extern struct device_attribute dev_attr_sw_activity;
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