summaryrefslogtreecommitdiff
path: root/include/linux/ata.h
diff options
context:
space:
mode:
authorTom Yan <tom.ty89@gmail.com>2016-07-12 16:37:02 +0300
committerTejun Heo <tj@kernel.org>2016-07-12 17:52:49 +0300
commit0c12735e8abf4734b011aec979092db5e63556b0 (patch)
tree897c3d5a9ac676ee834349e5bc411cb01679d969 /include/linux/ata.h
parent56b8cbabb422366e89577c5862ce0aa79cada240 (diff)
downloadlinux-0c12735e8abf4734b011aec979092db5e63556b0.tar.xz
libata-scsi: fix SET FEATURES "filtering" for ata_msense_caching()
Without this fix, the DRA bit of the caching mode page would not be updated when the read look-ahead feature is toggled (e.g. with `smartctl --set`), but will only be until, for example, the write cache feature is touched. Signed-off-by: Tom Yan <tom.ty89@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'include/linux/ata.h')
-rw-r--r--include/linux/ata.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h
index 99346be5a7ca..2d6879392ae3 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -409,6 +409,9 @@ enum {
SETFEATURES_WC_ON = 0x02, /* Enable write cache */
SETFEATURES_WC_OFF = 0x82, /* Disable write cache */
+ SETFEATURES_RA_ON = 0xaa, /* Enable read look-ahead */
+ SETFEATURES_RA_OFF = 0x55, /* Disable read look-ahead */
+
/* Enable/Disable Automatic Acoustic Management */
SETFEATURES_AAM_ON = 0x42,
SETFEATURES_AAM_OFF = 0xC2,