+#define ata_id_cdb_intr(id) (((id)[ATA_ID_CONFIG] & 0x60) == 0x20)
+
+static inline bool ata_id_has_hipm(const u16 *id)
+{
+ u16 val = id[76];
+
+ if (val == 0 || val == 0xffff)
+ return false;
+
+ return val & (1 << 9);
+}
+
+static inline bool ata_id_has_dipm(const u16 *id)
+{
+ u16 val = id[78];
+
+ if (val == 0 || val == 0xffff)
+ return false;
+
+ return val & (1 << 3);
+}
+
+
+static inline int ata_id_has_fua(const u16 *id)
+{
+ if ((id[ATA_ID_CFSSE] & 0xC000) != 0x4000)
+ return 0;
+ return id[ATA_ID_CFSSE] & (1 << 6);
+}
+
+static inline int ata_id_has_flush(const u16 *id)
+{
+ if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000)
+ return 0;
+ return id[ATA_ID_COMMAND_SET_2] & (1 << 12);
+}
+
+static inline int ata_id_flush_enabled(const u16 *id)
+{
+ if (ata_id_has_flush(id) == 0)
+ return 0;
+ if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000)
+ return 0;
+ return id[ATA_ID_CFS_ENABLE_2] & (1 << 12);
+}
+
+static inline int ata_id_has_flush_ext(const u16 *id)
+{
+ if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000)
+ return 0;
+ return id[ATA_ID_COMMAND_SET_2] & (1 << 13);
+}
+
+static inline int ata_id_flush_ext_enabled(const u16 *id)
+{
+ if (ata_id_has_flush_ext(id) == 0)
+ return 0;
+ if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000)
+ return 0;
+ /*
+ * some Maxtor disks have bit 13 defined incorrectly
+ * so check bit 10 too
+ */
+ return (id[ATA_ID_CFS_ENABLE_2] & 0x2400) == 0x2400;
+}
+
+static inline int ata_id_has_large_logical_sectors(const u16 *id)
+{
+ if ((id[ATA_ID_SECTOR_SIZE] & 0xc000) != 0x4000)
+ return 0;
+ return id[ATA_ID_SECTOR_SIZE] & (1 << 13);
+}
+
+static inline u8 ata_id_logical_per_physical_sectors(const u16 *id)
+{
+ return id[ATA_ID_SECTOR_SIZE] & 0xf;
+}
+
+static inline int ata_id_has_lba48(const u16 *id)
+{
+ if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000)
+ return 0;
+ if (!ata_id_u64(id, ATA_ID_LBA_CAPACITY_2))
+ return 0;
+ return id[ATA_ID_COMMAND_SET_2] & (1 << 10);
+}
+
+static inline int ata_id_lba48_enabled(const u16 *id)
+{
+ if (ata_id_has_lba48(id) == 0)
+ return 0;
+ if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000)
+ return 0;
+ return id[ATA_ID_CFS_ENABLE_2] & (1 << 10);
+}
+
+static inline int ata_id_hpa_enabled(const u16 *id)
+{
+ /* Yes children, word 83 valid bits cover word 82 data */
+ if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000)
+ return 0;
+ /* And 87 covers 85-87 */
+ if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000)
+ return 0;
+ /* Check command sets enabled as well as supported */
+ if ((id[ATA_ID_CFS_ENABLE_1] & (1 << 10)) == 0)
+ return 0;
+ return id[ATA_ID_COMMAND_SET_1] & (1 << 10);
+}
+
+static inline int ata_id_has_wcache(const u16 *id)
+{
+ /* Yes children, word 83 valid bits cover word 82 data */
+ if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000)
+ return 0;
+ return id[ATA_ID_COMMAND_SET_1] & (1 << 5);
+}
+
+static inline int ata_id_has_pm(const u16 *id)
+{
+ if ((id[ATA_ID_COMMAND_SET_2] & 0xC000) != 0x4000)
+ return 0;
+ return id[ATA_ID_COMMAND_SET_1] & (1 << 3);
+}
+
+static inline int ata_id_rahead_enabled(const u16 *id)
+{
+ if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000)
+ return 0;
+ return id[ATA_ID_CFS_ENABLE_1] & (1 << 6);
+}
+
+static inline int ata_id_wcache_enabled(const u16 *id)
+{
+ if ((id[ATA_ID_CSF_DEFAULT] & 0xC000) != 0x4000)
+ return 0;
+ return id[ATA_ID_CFS_ENABLE_1] & (1 << 5);
+}
+
+/**
+ * ata_id_major_version - get ATA level of drive
+ * @id: Identify data
+ *
+ * Caveats:
+ * ATA-1 considers identify optional
+ * ATA-2 introduces mandatory identify
+ * ATA-3 introduces word 80 and accurate reporting
+ *
+ * The practical impact of this is that ata_id_major_version cannot
+ * reliably report on drives below ATA3.
+ */