[PATCH] libata-ncq: add NCQ related ATA/libata constants and macros

Add NCQ related ATA/libata constants and macros.

Signed-off-by: Tejun Heo <htejun@gmail.com>

2 files changed, 11 insertions, 0 deletions

diff --git a/include/linux/ata.h b/include/linux/ata.h
index 1cbeb434af9a..c494e1c0531e 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -133,6 +133,8 @@ enum {
         ATA_CMD_WRITE           = 0xCA,
         ATA_CMD_WRITE_EXT       = 0x35,
         ATA_CMD_WRITE_FUA_EXT   = 0x3D,
+        ATA_CMD_FPDMA_READ      = 0x60,
+        ATA_CMD_FPDMA_WRITE     = 0x61,
         ATA_CMD_PIO_READ        = 0x20,
         ATA_CMD_PIO_READ_EXT    = 0x24,
         ATA_CMD_PIO_WRITE       = 0x30,
@@ -151,6 +153,10 @@ enum {
         ATA_CMD_INIT_DEV_PARAMS = 0x91,
         ATA_CMD_READ_NATIVE_MAX = 0xF8,
         ATA_CMD_READ_NATIVE_MAX_EXT = 0x27,
+        ATA_CMD_READ_LOG_EXT    = 0x2f,
+
+        /* READ_LOG_EXT pages */
+        ATA_LOG_SATA_NCQ        = 0x10,
 
         /* SETFEATURES stuff */
         SETFEATURES_XFER        = 0x03,
@@ -221,6 +227,7 @@ enum ata_tf_protocols {
         ATA_PROT_NODATA,        /* no data */
         ATA_PROT_PIO,           /* PIO single sector */
         ATA_PROT_DMA,           /* DMA */
+        ATA_PROT_NCQ,           /* NCQ */
         ATA_PROT_ATAPI,         /* packet command, PIO data xfer*/
         ATA_PROT_ATAPI_NODATA,  /* packet command, no data */
         ATA_PROT_ATAPI_DMA,     /* packet command with special DMA sauce */
@@ -276,6 +283,8 @@ struct ata_taskfile {
 #define ata_id_has_pm(id)       ((id)[82] & (1 << 3))
 #define ata_id_has_lba(id)      ((id)[49] & (1 << 9))
 #define ata_id_has_dma(id)      ((id)[49] & (1 << 8))
+#define ata_id_has_ncq(id)      ((id)[76] & (1 << 8))
+#define ata_id_queue_depth(id)  (((id)[75] & 0x1f) + 1)
 #define ata_id_removeable(id)   ((id)[0] & (1 << 7))
 #define ata_id_has_dword_io(id) ((id)[50] & (1 << 0))
 #define ata_id_u32(id,n)        \
diff --git a/include/linux/libata.h b/include/linux/libata.h
index db17723e23fb..7c9e280a4829 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -125,6 +125,7 @@ enum {
         ATA_DFLAG_LBA           = (1 << 0), /* device supports LBA */
         ATA_DFLAG_LBA48         = (1 << 1), /* device supports LBA48 */
         ATA_DFLAG_CDB_INTR      = (1 << 2), /* device asserts INTRQ when ready for CDB */
+        ATA_DFLAG_NCQ           = (1 << 3), /* device supports NCQ */
         ATA_DFLAG_CFG_MASK      = (1 << 8) - 1,
 
         ATA_DFLAG_PIO           = (1 << 8), /* device currently in PIO mode */
@@ -150,6 +151,7 @@ enum {
         ATA_FLAG_IRQ_MASK       = (1 << 9), /* Mask IRQ in PIO xfers */
         ATA_FLAG_PIO_POLLING    = (1 << 10), /* use polling PIO if LLD
                                               * doesn't handle PIO interrupts */
+        ATA_FLAG_NCQ            = (1 << 11), /* host supports NCQ */
 
         ATA_FLAG_DEBUGMSG       = (1 << 14),
         ATA_FLAG_FLUSH_PORT_TASK = (1 << 15), /* flush port task */