[libata] add DMA setup FIS auto-activate feature

Hopefully results in fewer on-the-wire FIS's and no breakage.  We'll see!

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

2 files changed, 6 insertions, 0 deletions

diff --git a/include/linux/ata.h b/include/linux/ata.h
index 9c75921f0c16..f5494050df83 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -306,6 +306,7 @@ enum {
         /* SETFEATURE Sector counts for SATA features */
         SATA_AN                 = 0x05,  /* Asynchronous Notification */
         SATA_DIPM               = 0x03,  /* Device Initiated Power Management */
+        SATA_FPDMA_AA           = 0x02,  /* DMA Setup FIS Auto-Activate */
 
         /* feature values for SET_MAX */
         ATA_SET_MAX_ADDR        = 0x00,
@@ -525,6 +526,9 @@ static inline int ata_is_data(u8 prot)
 #define ata_id_has_atapi_AN(id) \
         ( (((id)[76] != 0x0000) && ((id)[76] != 0xffff)) && \
           ((id)[78] & (1 << 5)) )
+#define ata_id_has_fpdma_aa(id) \
+        ( (((id)[76] != 0x0000) && ((id)[76] != 0xffff)) && \
+          ((id)[78] & (1 << 2)) )
 #define ata_id_iordy_disable(id) ((id)[ATA_ID_CAPABILITY] & (1 << 10))
 #define ata_id_has_iordy(id) ((id)[ATA_ID_CAPABILITY] & (1 << 11))
 #define ata_id_u32(id,n)        \
diff --git a/include/linux/libata.h b/include/linux/libata.h
index e5b6e33c6571..d3f7cab4873e 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -190,6 +190,7 @@ enum {
         ATA_FLAG_NO_POWEROFF_SPINDOWN = (1 << 11), /* don't spindown before poweroff */
         ATA_FLAG_NO_HIBERNATE_SPINDOWN = (1 << 12), /* don't spindown before hibernation */
         ATA_FLAG_DEBUGMSG       = (1 << 13),
+        ATA_FLAG_FPDMA_AA               = (1 << 14), /* driver supports Auto-Activate */
         ATA_FLAG_IGN_SIMPLEX    = (1 << 15), /* ignore SIMPLEX */
         ATA_FLAG_NO_IORDY       = (1 << 16), /* controller lacks iordy */
         ATA_FLAG_ACPI_SATA      = (1 << 17), /* need native SATA ACPI layout */
@@ -386,6 +387,7 @@ enum {
         ATA_HORKAGE_FIRMWARE_WARN = (1 << 12),  /* firmware update warning */
         ATA_HORKAGE_1_5_GBPS    = (1 << 13),    /* force 1.5 Gbps */
         ATA_HORKAGE_NOSETXFER   = (1 << 14),    /* skip SETXFER, SATA only */
+        ATA_HORKAGE_BROKEN_FPDMA_AA     = (1 << 15),    /* skip AA */
 
          /* DMA mask for user DMA control: User visible values; DO NOT
             renumber */