ATA_MAX_DEVICES = 2, /* per bus/port */
ATA_MAX_PRD = 256, /* we could make these 256/256 */
ATA_SECT_SIZE = 512,
+ ATA_MAX_SECTORS_128 = 128,
+ ATA_MAX_SECTORS = 256,
+ ATA_MAX_SECTORS_LBA48 = 65535,/* TODO: 65536? */
+ ATA_MAX_SECTORS_TAPE = 65535,
ATA_ID_WORDS = 256,
- ATA_ID_SERNO_OFS = 10,
- ATA_ID_FW_REV_OFS = 23,
- ATA_ID_PROD_OFS = 27,
+ ATA_ID_SERNO = 10,
+ ATA_ID_FW_REV = 23,
+ ATA_ID_PROD = 27,
ATA_ID_OLD_PIO_MODES = 51,
ATA_ID_FIELD_VALID = 53,
ATA_ID_MWDMA_MODES = 63,
ATA_ID_MAJOR_VER = 80,
ATA_ID_PIO4 = (1 << 1),
+ ATA_ID_SERNO_LEN = 20,
+ ATA_ID_FW_REV_LEN = 8,
+ ATA_ID_PROD_LEN = 40,
+
ATA_PCI_CTL_OFS = 2,
- ATA_SERNO_LEN = 20,
+
+ ATA_PIO0 = (1 << 0),
+ ATA_PIO1 = ATA_PIO0 | (1 << 1),
+ ATA_PIO2 = ATA_PIO1 | (1 << 2),
+ ATA_PIO3 = ATA_PIO2 | (1 << 3),
+ ATA_PIO4 = ATA_PIO3 | (1 << 4),
+ ATA_PIO5 = ATA_PIO4 | (1 << 5),
+ ATA_PIO6 = ATA_PIO5 | (1 << 6),
+
+ ATA_SWDMA0 = (1 << 0),
+ ATA_SWDMA1 = ATA_SWDMA0 | (1 << 1),
+ ATA_SWDMA2 = ATA_SWDMA1 | (1 << 2),
+
+ ATA_SWDMA2_ONLY = (1 << 2),
+
+ ATA_MWDMA0 = (1 << 0),
+ ATA_MWDMA1 = ATA_MWDMA0 | (1 << 1),
+ ATA_MWDMA2 = ATA_MWDMA1 | (1 << 2),
+
+ ATA_MWDMA12_ONLY = (1 << 1) | (1 << 2),
+ ATA_MWDMA2_ONLY = (1 << 2),
+
ATA_UDMA0 = (1 << 0),
ATA_UDMA1 = ATA_UDMA0 | (1 << 1),
ATA_UDMA2 = ATA_UDMA1 | (1 << 2),
ATA_DRQ = (1 << 3), /* data request i/o */
ATA_ERR = (1 << 0), /* have an error */
ATA_SRST = (1 << 2), /* software reset */
+ ATA_ICRC = (1 << 7), /* interface CRC error */
+ ATA_UNC = (1 << 6), /* uncorrectable media error */
+ ATA_IDNF = (1 << 4), /* ID not found */
ATA_ABORTED = (1 << 2), /* command aborted */
/* ATA command block registers */
ATA_REG_IRQ = ATA_REG_NSECT,
/* ATA device commands */
+ ATA_CMD_DEV_RESET = 0x08, /* ATAPI device reset */
ATA_CMD_CHK_POWER = 0xE5, /* check power mode */
ATA_CMD_STANDBY = 0xE2, /* place in standby power mode */
ATA_CMD_IDLE = 0xE3, /* place in idle power mode */
ATA_CMD_READ_EXT = 0x25,
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,
ATA_CMD_READ_MULTI_EXT = 0x29,
ATA_CMD_WRITE_MULTI = 0xC5,
ATA_CMD_WRITE_MULTI_EXT = 0x39,
+ ATA_CMD_WRITE_MULTI_FUA_EXT = 0xCE,
ATA_CMD_SET_FEATURES = 0xEF,
+ ATA_CMD_SET_MULTI = 0xC6,
ATA_CMD_PACKET = 0xA0,
ATA_CMD_VERIFY = 0x40,
ATA_CMD_VERIFY_EXT = 0x42,
+ ATA_CMD_STANDBYNOW1 = 0xE0,
+ ATA_CMD_IDLEIMMEDIATE = 0xE1,
+ ATA_CMD_SLEEP = 0xE6,
ATA_CMD_INIT_DEV_PARAMS = 0x91,
+ ATA_CMD_READ_NATIVE_MAX = 0xF8,
+ ATA_CMD_READ_NATIVE_MAX_EXT = 0x27,
+ ATA_CMD_SET_MAX = 0xF9,
+ ATA_CMD_SET_MAX_EXT = 0x37,
+ ATA_CMD_READ_LOG_EXT = 0x2f,
+ ATA_CMD_PMP_READ = 0xE4,
+ ATA_CMD_PMP_WRITE = 0xE8,
+ ATA_CMD_CONF_OVERLAY = 0xB1,
+ ATA_CMD_SEC_FREEZE_LOCK = 0xF5,
+
+ /* READ_LOG_EXT pages */
+ ATA_LOG_SATA_NCQ = 0x10,
+
+ /* READ/WRITE LONG (obsolete) */
+ ATA_CMD_READ_LONG = 0x22,
+ ATA_CMD_READ_LONG_ONCE = 0x23,
+ ATA_CMD_WRITE_LONG = 0x32,
+ ATA_CMD_WRITE_LONG_ONCE = 0x33,
/* SETFEATURES stuff */
SETFEATURES_XFER = 0x03,
XFER_UDMA_2 = 0x42,
XFER_UDMA_1 = 0x41,
XFER_UDMA_0 = 0x40,
+ XFER_MW_DMA_4 = 0x24, /* CFA only */
+ XFER_MW_DMA_3 = 0x23, /* CFA only */
XFER_MW_DMA_2 = 0x22,
XFER_MW_DMA_1 = 0x21,
XFER_MW_DMA_0 = 0x20,
XFER_SW_DMA_2 = 0x12,
XFER_SW_DMA_1 = 0x11,
XFER_SW_DMA_0 = 0x10,
+ XFER_PIO_6 = 0x0E, /* CFA only */
+ XFER_PIO_5 = 0x0D, /* CFA only */
XFER_PIO_4 = 0x0C,
XFER_PIO_3 = 0x0B,
XFER_PIO_2 = 0x0A,
XFER_PIO_0 = 0x08,
XFER_PIO_SLOW = 0x00,
+ SETFEATURES_WC_ON = 0x02, /* Enable write cache */
+ SETFEATURES_WC_OFF = 0x82, /* Disable write cache */
+
+ SETFEATURES_SPINUP = 0x07, /* Spin-up drive */
+
+ SETFEATURES_SATA_ENABLE = 0x10, /* Enable use of SATA feature */
+ SETFEATURES_SATA_DISABLE = 0x90, /* Disable use of SATA feature */
+
+ /* SETFEATURE Sector counts for SATA features */
+ SATA_AN = 0x05, /* Asynchronous Notification */
+ SATA_DIPM = 0x03, /* Device Initiated Power Management */
+
+ /* feature values for SET_MAX */
+ ATA_SET_MAX_ADDR = 0x00,
+ ATA_SET_MAX_PASSWD = 0x01,
+ ATA_SET_MAX_LOCK = 0x02,
+ ATA_SET_MAX_UNLOCK = 0x03,
+ ATA_SET_MAX_FREEZE_LOCK = 0x04,
+
+ /* feature values for DEVICE CONFIGURATION OVERLAY */
+ ATA_DCO_RESTORE = 0xC0,
+ ATA_DCO_FREEZE_LOCK = 0xC1,
+ ATA_DCO_IDENTIFY = 0xC2,
+ ATA_DCO_SET = 0xC3,
+
/* ATAPI stuff */
ATAPI_PKT_DMA = (1 << 0),
ATAPI_DMADIR = (1 << 2), /* ATAPI data dir:
0=to device, 1=to host */
ATAPI_CDB_LEN = 16,
+ /* PMP stuff */
+ SATA_PMP_MAX_PORTS = 15,
+ SATA_PMP_CTRL_PORT = 15,
+
+ SATA_PMP_GSCR_DWORDS = 128,
+ SATA_PMP_GSCR_PROD_ID = 0,
+ SATA_PMP_GSCR_REV = 1,
+ SATA_PMP_GSCR_PORT_INFO = 2,
+ SATA_PMP_GSCR_ERROR = 32,
+ SATA_PMP_GSCR_ERROR_EN = 33,
+ SATA_PMP_GSCR_FEAT = 64,
+ SATA_PMP_GSCR_FEAT_EN = 96,
+
+ SATA_PMP_PSCR_STATUS = 0,
+ SATA_PMP_PSCR_ERROR = 1,
+ SATA_PMP_PSCR_CONTROL = 2,
+
+ SATA_PMP_FEAT_BIST = (1 << 0),
+ SATA_PMP_FEAT_PMREQ = (1 << 1),
+ SATA_PMP_FEAT_DYNSSC = (1 << 2),
+ SATA_PMP_FEAT_NOTIFY = (1 << 3),
+
/* cable types */
ATA_CBL_NONE = 0,
ATA_CBL_PATA40 = 1,
ATA_CBL_PATA80 = 2,
- ATA_CBL_PATA_UNK = 3,
- ATA_CBL_SATA = 4,
+ ATA_CBL_PATA40_SHORT = 3, /* 40 wire cable to high UDMA spec */
+ ATA_CBL_PATA_UNK = 4, /* don't know, maybe 80c? */
+ ATA_CBL_PATA_IGN = 5, /* don't know, ignore cable handling */
+ ATA_CBL_SATA = 6,
/* SATA Status and Control Registers */
SCR_STATUS = 0,
SCR_ACTIVE = 3,
SCR_NOTIFICATION = 4,
+ /* SError bits */
+ SERR_DATA_RECOVERED = (1 << 0), /* recovered data error */
+ SERR_COMM_RECOVERED = (1 << 1), /* recovered comm failure */
+ SERR_DATA = (1 << 8), /* unrecovered data error */
+ SERR_PERSISTENT = (1 << 9), /* persistent data/comm error */
+ SERR_PROTOCOL = (1 << 10), /* protocol violation */
+ SERR_INTERNAL = (1 << 11), /* host internal error */
+ SERR_PHYRDY_CHG = (1 << 16), /* PHY RDY changed */
+ SERR_PHY_INT_ERR = (1 << 17), /* PHY internal error */
+ SERR_COMM_WAKE = (1 << 18), /* Comm wake */
+ SERR_10B_8B_ERR = (1 << 19), /* 10b to 8b decode error */
+ SERR_DISPARITY = (1 << 20), /* Disparity */
+ SERR_CRC = (1 << 21), /* CRC error */
+ SERR_HANDSHAKE = (1 << 22), /* Handshake error */
+ SERR_LINK_SEQ_ERR = (1 << 23), /* Link sequence error */
+ SERR_TRANS_ST_ERROR = (1 << 24), /* Transport state trans. error */
+ SERR_UNRECOG_FIS = (1 << 25), /* Unrecognized FIS */
+ SERR_DEV_XCHG = (1 << 26), /* device exchanged */
+
/* struct ata_taskfile flags */
ATA_TFLAG_LBA48 = (1 << 0), /* enable 48-bit LBA and "HOB" */
ATA_TFLAG_ISADDR = (1 << 1), /* enable r/w to nsect/lba regs */
ATA_TFLAG_DEVICE = (1 << 2), /* enable r/w to device reg */
ATA_TFLAG_WRITE = (1 << 3), /* data dir: host->dev==1 (write) */
ATA_TFLAG_LBA = (1 << 4), /* enable LBA */
+ ATA_TFLAG_FUA = (1 << 5), /* enable FUA */
+ ATA_TFLAG_POLLING = (1 << 6), /* set nIEN to 1 and use polling */
+
+ /* protocol flags */
+ ATA_PROT_FLAG_PIO = (1 << 0), /* is PIO */
+ ATA_PROT_FLAG_DMA = (1 << 1), /* is DMA */
+ ATA_PROT_FLAG_DATA = ATA_PROT_FLAG_PIO | ATA_PROT_FLAG_DMA,
+ ATA_PROT_FLAG_NCQ = (1 << 2), /* is NCQ */
+ ATA_PROT_FLAG_ATAPI = (1 << 3), /* is ATAPI */
};
enum ata_tf_protocols {
/* ATA taskfile 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_PIO, /* PIO data xfer */
ATA_PROT_DMA, /* DMA */
- 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 */
+ ATA_PROT_NCQ, /* NCQ */
+ ATAPI_PROT_NODATA, /* packet command, no data */
+ ATAPI_PROT_PIO, /* packet command, PIO data xfer*/
+ ATAPI_PROT_DMA, /* packet command with special DMA sauce */
};
enum ata_ioctls {
/* core structures */
struct ata_prd {
- u32 addr;
- u32 flags_len;
+ __le32 addr;
+ __le32 flags_len;
};
struct ata_taskfile {
u8 command; /* IO operation */
};
+/*
+ * protocol tests
+ */
+static inline unsigned int ata_prot_flags(u8 prot)
+{
+ switch (prot) {
+ case ATA_PROT_NODATA:
+ return 0;
+ case ATA_PROT_PIO:
+ return ATA_PROT_FLAG_PIO;
+ case ATA_PROT_DMA:
+ return ATA_PROT_FLAG_DMA;
+ case ATA_PROT_NCQ:
+ return ATA_PROT_FLAG_DMA | ATA_PROT_FLAG_NCQ;
+ case ATAPI_PROT_NODATA:
+ return ATA_PROT_FLAG_ATAPI;
+ case ATAPI_PROT_PIO:
+ return ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_PIO;
+ case ATAPI_PROT_DMA:
+ return ATA_PROT_FLAG_ATAPI | ATA_PROT_FLAG_DMA;
+ }
+ return 0;
+}
+
+static inline int ata_is_atapi(u8 prot)
+{
+ return ata_prot_flags(prot) & ATA_PROT_FLAG_ATAPI;
+}
+
+static inline int ata_is_nodata(u8 prot)
+{
+ return !(ata_prot_flags(prot) & ATA_PROT_FLAG_DATA);
+}
+
+static inline int ata_is_pio(u8 prot)
+{
+ return ata_prot_flags(prot) & ATA_PROT_FLAG_PIO;
+}
+
+static inline int ata_is_dma(u8 prot)
+{
+ return ata_prot_flags(prot) & ATA_PROT_FLAG_DMA;
+}
+
+static inline int ata_is_ncq(u8 prot)
+{
+ return ata_prot_flags(prot) & ATA_PROT_FLAG_NCQ;
+}
+
+static inline int ata_is_data(u8 prot)
+{
+ return ata_prot_flags(prot) & ATA_PROT_FLAG_DATA;
+}
+
+/*
+ * id tests
+ */
#define ata_id_is_ata(id) (((id)[0] & (1 << 15)) == 0)
-#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_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_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_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_atapi_AN(id) \
+ ( (((id)[76] != 0x0000) && ((id)[76] != 0xffff)) && \
+ ((id)[78] & (1 << 5)) )
+#define ata_id_iordy_disable(id) ((id)[49] & (1 << 10))
+#define ata_id_has_iordy(id) ((id)[49] & (1 << 11))
#define ata_id_u32(id,n) \
(((u32) (id)[(n) + 1] << 16) | ((u32) (id)[(n)]))
#define ata_id_u64(id,n) \
((u64) (id)[(n) + 1] << 16) | \
((u64) (id)[(n) + 0]) )
-static inline int ata_id_current_chs_valid(u16 *id)
+#define ata_id_cdb_intr(id) (((id)[0] & 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[84] & 0xC000) != 0x4000)
+ return 0;
+ return id[84] & (1 << 6);
+}
+
+static inline int ata_id_has_flush(const u16 *id)
+{
+ if ((id[83] & 0xC000) != 0x4000)
+ return 0;
+ return id[83] & (1 << 12);
+}
+
+static inline int ata_id_has_flush_ext(const u16 *id)
+{
+ if ((id[83] & 0xC000) != 0x4000)
+ return 0;
+ return id[83] & (1 << 13);
+}
+
+static inline int ata_id_has_lba48(const u16 *id)
+{
+ if ((id[83] & 0xC000) != 0x4000)
+ return 0;
+ if (!ata_id_u64(id, 100))
+ return 0;
+ return id[83] & (1 << 10);
+}
+
+static inline int ata_id_hpa_enabled(const u16 *id)
+{
+ /* Yes children, word 83 valid bits cover word 82 data */
+ if ((id[83] & 0xC000) != 0x4000)
+ return 0;
+ /* And 87 covers 85-87 */
+ if ((id[87] & 0xC000) != 0x4000)
+ return 0;
+ /* Check command sets enabled as well as supported */
+ if ((id[85] & ( 1 << 10)) == 0)
+ return 0;
+ return id[82] & (1 << 10);
+}
+
+static inline int ata_id_has_wcache(const u16 *id)
+{
+ /* Yes children, word 83 valid bits cover word 82 data */
+ if ((id[83] & 0xC000) != 0x4000)
+ return 0;
+ return id[82] & (1 << 5);
+}
+
+static inline int ata_id_has_pm(const u16 *id)
+{
+ if ((id[83] & 0xC000) != 0x4000)
+ return 0;
+ return id[82] & (1 << 3);
+}
+
+static inline int ata_id_rahead_enabled(const u16 *id)
+{
+ if ((id[87] & 0xC000) != 0x4000)
+ return 0;
+ return id[85] & (1 << 6);
+}
+
+static inline int ata_id_wcache_enabled(const u16 *id)
+{
+ if ((id[87] & 0xC000) != 0x4000)
+ return 0;
+ return id[85] & (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.
+ */
+
+static inline unsigned int ata_id_major_version(const u16 *id)
+{
+ unsigned int mver;
+
+ if (id[ATA_ID_MAJOR_VER] == 0xFFFF)
+ return 0;
+
+ for (mver = 14; mver >= 1; mver--)
+ if (id[ATA_ID_MAJOR_VER] & (1 << mver))
+ break;
+ return mver;
+}
+
+static inline int ata_id_is_sata(const u16 *id)
+{
+ return ata_id_major_version(id) >= 5 && id[93] == 0;
+}
+
+static inline int ata_id_has_tpm(const u16 *id)
+{
+ /* The TPM bits are only valid on ATA8 */
+ if (ata_id_major_version(id) < 8)
+ return 0;
+ if ((id[48] & 0xC000) != 0x4000)
+ return 0;
+ return id[48] & (1 << 0);
+}
+
+static inline int ata_id_has_dword_io(const u16 *id)
{
- /* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command
- has not been issued to the device then the values of
+ /* ATA 8 reuses this flag for "trusted" computing */
+ if (ata_id_major_version(id) > 7)
+ return 0;
+ if (id[48] & (1 << 0))
+ return 1;
+ return 0;
+}
+
+static inline int ata_id_current_chs_valid(const u16 *id)
+{
+ /* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command
+ has not been issued to the device then the values of
id[54] to id[56] are vendor specific. */
return (id[53] & 0x01) && /* Current translation valid */
id[54] && /* cylinders in current translation */
id[56]; /* sectors in current translation */
}
-static inline int atapi_cdb_len(u16 *dev_id)
+static inline int ata_id_is_cfa(const u16 *id)
+{
+ u16 v = id[0];
+ if (v == 0x848A) /* Standard CF */
+ return 1;
+ /* Could be CF hiding as standard ATA */
+ if (ata_id_major_version(id) >= 3 && id[82] != 0xFFFF &&
+ (id[82] & ( 1 << 2)))
+ return 1;
+ return 0;
+}
+
+static inline int ata_drive_40wire(const u16 *dev_id)
+{
+ if (ata_id_is_sata(dev_id))
+ return 0; /* SATA */
+ if ((dev_id[93] & 0xE000) == 0x6000)
+ return 0; /* 80 wire */
+ return 1;
+}
+
+static inline int ata_drive_40wire_relaxed(const u16 *dev_id)
+{
+ if ((dev_id[93] & 0x2000) == 0x2000)
+ return 0; /* 80 wire */
+ return 1;
+}
+
+static inline int atapi_cdb_len(const u16 *dev_id)
{
u16 tmp = dev_id[0] & 0x3;
switch (tmp) {
}
}
-static inline int is_atapi_taskfile(struct ata_taskfile *tf)
+static inline int atapi_command_packet_set(const u16 *dev_id)
+{
+ return (dev_id[0] >> 8) & 0x1f;
+}
+
+static inline int is_multi_taskfile(struct ata_taskfile *tf)
{
- return (tf->protocol == ATA_PROT_ATAPI) ||
- (tf->protocol == ATA_PROT_ATAPI_NODATA) ||
- (tf->protocol == ATA_PROT_ATAPI_DMA);
+ return (tf->command == ATA_CMD_READ_MULTI) ||
+ (tf->command == ATA_CMD_WRITE_MULTI) ||
+ (tf->command == ATA_CMD_READ_MULTI_EXT) ||
+ (tf->command == ATA_CMD_WRITE_MULTI_EXT) ||
+ (tf->command == ATA_CMD_WRITE_MULTI_FUA_EXT);
}
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);
+}
+
+#define sata_pmp_gscr_vendor(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] & 0xffff)
+#define sata_pmp_gscr_devid(gscr) ((gscr)[SATA_PMP_GSCR_PROD_ID] >> 16)
+#define sata_pmp_gscr_rev(gscr) (((gscr)[SATA_PMP_GSCR_REV] >> 8) & 0xff)
+#define sata_pmp_gscr_ports(gscr) ((gscr)[SATA_PMP_GSCR_PORT_INFO] & 0xf)
+
#endif /* __LINUX_ATA_H__ */