libata: ATA_12/16 doesn't fall into ATAPI_MISC

SAT passthrus don't really fit into ATAPI_MISC class.  SAT passthru
commands always transfer multiple of 512 bytes and variable length
response is not allowed.  This patch creates a separate category -
ATAPI_PASS_THRU - for these.

This fixes HSM violation on "hdparm -I".

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/linux/libata.h b/include/linux/libata.h
index 92c64909ed25..37ee881c42ac 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -350,7 +350,8 @@ enum {
         ATAPI_READ              = 0,            /* READs */
         ATAPI_WRITE             = 1,            /* WRITEs */
         ATAPI_READ_CD           = 2,            /* READ CD [MSF] */
-        ATAPI_MISC              = 3,            /* the rest */
+        ATAPI_PASS_THRU         = 3,            /* SAT pass-thru */
+        ATAPI_MISC              = 4,            /* the rest */
 };
 
 enum ata_xfer_mask {