2 files changed, 22 insertions, 14 deletions

diff --git a/include/linux/ata.h b/include/linux/ata.h
index 312a2c0c64e6..206d859083ea 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -199,6 +199,7 @@ enum {
         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 */
 };
 
 enum ata_tf_protocols {
@@ -272,6 +273,8 @@ struct ata_taskfile {
           ((u64) (id)[(n) + 1] << 16) | \
           ((u64) (id)[(n) + 0]) )
 
+#define ata_id_cdb_intr(id)     (((id)[0] & 0x60) == 0x20)
+
 static inline unsigned int ata_id_major_version(const u16 *id)
 {
         unsigned int mver;
@@ -311,6 +314,15 @@ static inline int is_atapi_taskfile(const struct ata_taskfile *tf)
                (tf->protocol == ATA_PROT_ATAPI_DMA);
 }
 
+static inline int is_multi_taskfile(struct ata_taskfile *tf)
+{
+        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)
 {
         return ((status & (ATA_BUSY | ATA_DRDY | ATA_DF | ATA_DRQ | ATA_ERR))
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 9fcc061e3adf..0eb71c1773a1 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -123,6 +123,7 @@ enum {
         ATA_DFLAG_LBA48         = (1 << 0), /* device supports LBA48 */
         ATA_DFLAG_PIO           = (1 << 1), /* device currently in PIO mode */
         ATA_DFLAG_LBA           = (1 << 2), /* device supports LBA */
+        ATA_DFLAG_CDB_INTR      = (1 << 3), /* device asserts INTRQ when ready for CDB */
 
         ATA_DEV_UNKNOWN         = 0,    /* unknown device */
         ATA_DEV_ATA             = 1,    /* ATA device */
@@ -141,8 +142,8 @@ enum {
         ATA_FLAG_MMIO           = (1 << 6), /* use MMIO, not PIO */
         ATA_FLAG_SATA_RESET     = (1 << 7), /* (obsolete) use COMRESET */
         ATA_FLAG_PIO_DMA        = (1 << 8), /* PIO cmds via DMA */
-        ATA_FLAG_NOINTR         = (1 << 9), /* FIXME: Remove this once
-                                             * proper HSM is in place. */
+        ATA_FLAG_PIO_POLLING    = (1 << 9), /* use polling PIO if LLD
+                                             * doesn't handle PIO interrupts */
         ATA_FLAG_DEBUGMSG       = (1 << 10),
         ATA_FLAG_NO_ATAPI       = (1 << 11), /* No ATAPI support */
 
@@ -161,11 +162,8 @@ enum {
         ATA_QCFLAG_EH_SCHEDULED = (1 << 5), /* EH scheduled */
 
         /* various lengths of time */
-        ATA_TMOUT_PIO           = 30 * HZ,
         ATA_TMOUT_BOOT          = 30 * HZ,      /* heuristic */
         ATA_TMOUT_BOOT_QUICK    = 7 * HZ,       /* heuristic */
-        ATA_TMOUT_CDB           = 30 * HZ,
-        ATA_TMOUT_CDB_QUICK     = 5 * HZ,
         ATA_TMOUT_INTERNAL      = 30 * HZ,
         ATA_TMOUT_INTERNAL_QUICK = 5 * HZ,
 
@@ -211,14 +209,13 @@ enum {
 };
 
 enum hsm_task_states {
-        HSM_ST_UNKNOWN,
-        HSM_ST_IDLE,
-        HSM_ST_POLL,
-        HSM_ST_TMOUT,
-        HSM_ST,
-        HSM_ST_LAST,
-        HSM_ST_LAST_POLL,
-        HSM_ST_ERR,
+        HSM_ST_UNKNOWN,         /* state unknown */
+        HSM_ST_IDLE,            /* no command on going */
+        HSM_ST,                 /* (waiting the device to) transfer data */
+        HSM_ST_LAST,            /* (waiting the device to) complete command */
+        HSM_ST_ERR,             /* error */
+        HSM_ST_FIRST,           /* (waiting the device to)
+                                   write CDB or first data block */
 };
 
 enum ata_completion_errors {
@@ -404,7 +401,6 @@ struct ata_port {
         struct work_struct      port_task;
 
         unsigned int            hsm_task_state;
-        unsigned long           pio_task_timeout;
 
         u32                     msg_enable;
         struct list_head        eh_done_q;