libata: implement and use HORKAGE_NOSETXFER, take#2

[safe/jmp/linux-2.6] / include / linux / libata.h

diff --git a/include/linux/libata.h b/include/linux/libata.h
index 76262d8..79b6d7f 100644 (file)
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -209,6 +209,7 @@ enum {
 
        /* bits 24:31 of ap->flags are reserved for LLD specific flags */
 
+
        /* struct ata_port pflags */
        ATA_PFLAG_EH_PENDING    = (1 << 0), /* EH pending */
        ATA_PFLAG_EH_IN_PROGRESS = (1 << 1), /* EH in progress */
@@ -225,6 +226,9 @@ enum {
        ATA_PFLAG_PM_PENDING    = (1 << 18), /* PM operation pending */
        ATA_PFLAG_INIT_GTM_VALID = (1 << 19), /* initial gtm data valid */
 
+       ATA_PFLAG_PIO32         = (1 << 20),  /* 32bit PIO */
+       ATA_PFLAG_PIO32CHANGE   = (1 << 21),  /* 32bit PIO can be turned on/off */
+
        /* struct ata_queued_cmd flags */
        ATA_QCFLAG_ACTIVE       = (1 << 0), /* cmd not yet ack'd to scsi lyer */
        ATA_QCFLAG_DMAMAP       = (1 << 1), /* SG table is DMA mapped */
@@ -379,8 +383,9 @@ enum {
        ATA_HORKAGE_BRIDGE_OK   = (1 << 10),    /* no bridge limits */
        ATA_HORKAGE_ATAPI_MOD16_DMA = (1 << 11), /* use ATAPI DMA for commands
                                                    not multiple of 16 bytes */
-       ATA_HORKAGE_FIRMWARE_WARN = (1 << 12),  /* firwmare update warning */
+       ATA_HORKAGE_FIRMWARE_WARN = (1 << 12),  /* firmware update warning */
        ATA_HORKAGE_1_5_GBPS    = (1 << 13),    /* force 1.5 Gbps */
+       ATA_HORKAGE_NOSETXFER   = (1 << 14),    /* skip SETXFER, SATA only */
 
         /* DMA mask for user DMA control: User visible values; DO NOT
            renumber */
@@ -689,7 +694,10 @@ struct ata_port {
        struct Scsi_Host        *scsi_host; /* our co-allocated scsi host */
        struct ata_port_operations *ops;
        spinlock_t              *lock;
+       /* Flags owned by the EH context. Only EH should touch these once the
+          port is active */
        unsigned long           flags;  /* ATA_FLAG_xxx */
+       /* Flags that change dynamically, protected by ap->lock */
        unsigned int            pflags; /* ATA_PFLAG_xxx */
        unsigned int            print_id; /* user visible unique port ID */
        unsigned int            port_no; /* 0 based port no. inside the host */
@@ -1595,6 +1603,7 @@ extern void ata_sff_drain_fifo(struct ata_queued_cmd *qc);
 extern void ata_sff_error_handler(struct ata_port *ap);
 extern void ata_sff_post_internal_cmd(struct ata_queued_cmd *qc);
 extern int ata_sff_port_start(struct ata_port *ap);
+extern int ata_sff_port_start32(struct ata_port *ap);
 extern void ata_sff_std_ports(struct ata_ioports *ioaddr);
 extern unsigned long ata_bmdma_mode_filter(struct ata_device *dev,
                                           unsigned long xfer_mask);