Merge branch 'linus'

1 files changed, 28 insertions, 1 deletions

diff --git a/include/linux/ata.h b/include/linux/ata.h
index 94f77cce27fa..312a2c0c64e6 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -146,6 +146,8 @@ enum {
         ATA_CMD_STANDBYNOW1     = 0xE0,
         ATA_CMD_IDLEIMMEDIATE   = 0xE1,
         ATA_CMD_INIT_DEV_PARAMS = 0x91,
+        ATA_CMD_READ_NATIVE_MAX = 0xF8,
+        ATA_CMD_READ_NATIVE_MAX_EXT = 0x27,
 
         /* SETFEATURES stuff */
         SETFEATURES_XFER        = 0x03,
@@ -204,7 +206,6 @@ enum ata_tf_protocols {
         ATA_PROT_UNKNOWN,       /* unknown/invalid */
         ATA_PROT_NODATA,        /* no data */
         ATA_PROT_PIO,           /* PIO single sector */
-        ATA_PROT_PIO_MULT,      /* PIO multiple sector */
         ATA_PROT_DMA,           /* DMA */
         ATA_PROT_ATAPI,         /* packet command, PIO data xfer*/
         ATA_PROT_ATAPI_NODATA,  /* packet command, no data */
@@ -247,18 +248,22 @@ struct ata_taskfile {
 };
 
 #define ata_id_is_ata(id)       (((id)[0] & (1 << 15)) == 0)
+#define ata_id_is_cfa(id)       ((id)[0] == 0x848A)
 #define ata_id_is_sata(id)      ((id)[93] == 0)
 #define ata_id_rahead_enabled(id) ((id)[85] & (1 << 6))
 #define ata_id_wcache_enabled(id) ((id)[85] & (1 << 5))
+#define ata_id_hpa_enabled(id)  ((id)[85] & (1 << 10))
 #define ata_id_has_fua(id)      ((id)[84] & (1 << 6))
 #define ata_id_has_flush(id)    ((id)[83] & (1 << 12))
 #define ata_id_has_flush_ext(id) ((id)[83] & (1 << 13))
 #define ata_id_has_lba48(id)    ((id)[83] & (1 << 10))
+#define ata_id_has_hpa(id)      ((id)[82] & (1 << 10))
 #define ata_id_has_wcache(id)   ((id)[82] & (1 << 5))
 #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_removeable(id)   ((id)[0] & (1 << 7))
+#define ata_id_has_dword_io(id) ((id)[50] & (1 << 0))
 #define ata_id_u32(id,n)        \
         (((u32) (id)[(n) + 1] << 16) | ((u32) (id)[(n)]))
 #define ata_id_u64(id,n)        \
@@ -267,6 +272,16 @@ struct ata_taskfile {
           ((u64) (id)[(n) + 1] << 16) | \
           ((u64) (id)[(n) + 0]) )
 
+static inline unsigned int ata_id_major_version(const u16 *id)
+{
+        unsigned int mver;
+
+        for (mver = 14; mver >= 1; mver--)
+                if (id[ATA_ID_MAJOR_VER] & (1 << mver))
+                        break;
+        return mver;
+}
+
 static inline int ata_id_current_chs_valid(const u16 *id)
 {
         /* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command 
@@ -302,4 +317,16 @@ static inline int ata_ok(u8 status)
                         == ATA_DRDY);
 }
 
+static inline int lba_28_ok(u64 block, u32 n_block)
+{
+        /* check the ending block number */
+        return ((block + n_block - 1) < ((u64)1 << 28)) && (n_block <= 256);
+}
+
+static inline int lba_48_ok(u64 block, u32 n_block)
+{
+        /* check the ending block number */
+        return ((block + n_block - 1) < ((u64)1 << 48)) && (n_block <= 65536);
+}
+
 #endif /* __LINUX_ATA_H__ */