[TCP]: tcp_simple_retransmit can cause S+L

[linux-2.6-omap-h63xx.git] / include / linux / libata.h

diff --git a/include/linux/libata.h b/include/linux/libata.h
index ce7603a73156b15490d054e4374fe1560d04a57f..b064bfeb69ee236a189aa1d1c81adad8df24fbf8 100644 (file)
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -138,6 +138,7 @@ enum {
        ATA_DFLAG_AN            = (1 << 7), /* AN configured */
        ATA_DFLAG_HIPM          = (1 << 8), /* device supports HIPM */
        ATA_DFLAG_DIPM          = (1 << 9), /* device supports DIPM */
+       ATA_DFLAG_DMADIR        = (1 << 10), /* device requires DMADIR */
        ATA_DFLAG_CFG_MASK      = (1 << 12) - 1,
 
        ATA_DFLAG_PIO           = (1 << 12), /* device limited to PIO mode */
@@ -294,6 +295,7 @@ enum {
        ATA_EH_SOFTRESET        = (1 << 1),
        ATA_EH_HARDRESET        = (1 << 2),
        ATA_EH_ENABLE_LINK      = (1 << 3),
+       ATA_EH_LPM              = (1 << 4),  /* link power management action */
 
        ATA_EH_RESET_MASK       = ATA_EH_SOFTRESET | ATA_EH_HARDRESET,
        ATA_EH_PERDEV_MASK      = ATA_EH_REVALIDATE,
@@ -303,7 +305,6 @@ enum {
        ATA_EHI_RESUME_LINK     = (1 << 1),  /* resume link (reset modifier) */
        ATA_EHI_NO_AUTOPSY      = (1 << 2),  /* no autopsy */
        ATA_EHI_QUIET           = (1 << 3),  /* be quiet */
-       ATA_EHI_LPM             = (1 << 4),  /* link power management action */
 
        ATA_EHI_DID_SOFTRESET   = (1 << 16), /* already soft-reset this port */
        ATA_EHI_DID_HARDRESET   = (1 << 17), /* already soft-reset this port */
@@ -462,6 +463,7 @@ struct ata_queued_cmd {
        unsigned int            sect_size;
 
        unsigned int            nbytes;
+       unsigned int            extrabytes;
        unsigned int            curbytes;
 
        struct scatterlist      *cursg;
@@ -1335,6 +1337,11 @@ static inline struct ata_queued_cmd *ata_qc_from_tag(struct ata_port *ap,
        return NULL;
 }
 
+static inline unsigned int ata_qc_raw_nbytes(struct ata_queued_cmd *qc)
+{
+       return qc->nbytes - min(qc->extrabytes, qc->nbytes);
+}
+
 static inline void ata_tf_init(struct ata_device *dev, struct ata_taskfile *tf)
 {
        memset(tf, 0, sizeof(*tf));
@@ -1353,7 +1360,7 @@ static inline void ata_qc_reinit(struct ata_queued_cmd *qc)
        qc->flags = 0;
        qc->cursg = NULL;
        qc->cursg_ofs = 0;
-       qc->nbytes = qc->curbytes = 0;
+       qc->nbytes = qc->extrabytes = qc->curbytes = 0;
        qc->n_elem = 0;
        qc->err_mask = 0;
        qc->sect_size = ATA_SECT_SIZE;