1 files changed, 18 insertions, 7 deletions

diff --git a/include/linux/ata.h b/include/linux/ata.h
index a53318b8cbd0..6617c9f8f2ca 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -89,6 +89,8 @@ enum {
         ATA_ID_DLF              = 128,
         ATA_ID_CSFO             = 129,
         ATA_ID_CFA_POWER        = 160,
+        ATA_ID_CFA_KEY_MGMT     = 162,
+        ATA_ID_CFA_MODES        = 163,
         ATA_ID_ROT_SPEED        = 217,
         ATA_ID_PIO4             = (1 << 1),
 
@@ -106,6 +108,8 @@ enum {
         ATA_PIO5                = ATA_PIO4 | (1 << 5),
         ATA_PIO6                = ATA_PIO5 | (1 << 6),
 
+        ATA_PIO4_ONLY           = (1 << 4),
+
         ATA_SWDMA0              = (1 << 0),
         ATA_SWDMA1              = ATA_SWDMA0 | (1 << 1),
         ATA_SWDMA2              = ATA_SWDMA1 | (1 << 2),
@@ -115,6 +119,8 @@ enum {
         ATA_MWDMA0              = (1 << 0),
         ATA_MWDMA1              = ATA_MWDMA0 | (1 << 1),
         ATA_MWDMA2              = ATA_MWDMA1 | (1 << 2),
+        ATA_MWDMA3              = ATA_MWDMA2 | (1 << 3),
+        ATA_MWDMA4              = ATA_MWDMA3 | (1 << 4),
 
         ATA_MWDMA12_ONLY        = (1 << 1) | (1 << 2),
         ATA_MWDMA2_ONLY         = (1 << 2),
@@ -129,6 +135,8 @@ enum {
         ATA_UDMA7               = ATA_UDMA6 | (1 << 7),
         /* ATA_UDMA7 is just for completeness... doesn't exist (yet?).  */
 
+        ATA_UDMA24_ONLY         = (1 << 2) | (1 << 4),
+
         ATA_UDMA_MASK_40C       = ATA_UDMA2,    /* udma0-2 */
 
         /* DMA-related */
@@ -242,8 +250,6 @@ enum {
         ATA_CMD_MEDIA_UNLOCK    = 0xDF,
         /* marked obsolete in the ATA/ATAPI-7 spec */
         ATA_CMD_RESTORE         = 0x10,
-        /* EXABYTE specific */
-        ATA_EXABYTE_ENABLE_NEST = 0xF0,
 
         /* READ_LOG_EXT pages */
         ATA_LOG_SATA_NCQ        = 0x10,
@@ -731,12 +737,17 @@ static inline int ata_id_current_chs_valid(const u16 *id)
 
 static inline int ata_id_is_cfa(const u16 *id)
 {
-        if (id[ATA_ID_CONFIG] == 0x848A)        /* Standard CF */
+        if (id[ATA_ID_CONFIG] == 0x848A)        /* Traditional CF */
                 return 1;
-        /* Could be CF hiding as standard ATA */
-        if (ata_id_major_version(id) >= 3 &&
-            id[ATA_ID_COMMAND_SET_1] != 0xFFFF &&
-           (id[ATA_ID_COMMAND_SET_1] & (1 << 2)))
+        /*
+         * CF specs don't require specific value in the word 0 anymore and yet
+         * they forbid to report the ATA version in the word 80 and require the
+         * CFA feature set support to be indicated in the word 83 in this case.
+         * Unfortunately, some cards only follow either of this requirements,
+         * and while those that don't indicate CFA feature support need some
+         * sort of quirk list, it seems impractical for the ones that do...
+         */
+        if ((id[ATA_ID_COMMAND_SET_2] & 0xC004) == 0x4004)
                 return 1;
         return 0;
 }