ata: Report 16/32bit PIO as best we can

[deliverable/linux.git] / include / linux / libata.h

diff --git a/include/linux/libata.h b/include/linux/libata.h
index b450a2628855214aea4057dc25c1bb5f7bee0279..3d501db36a26a52f0f960e59fc8e1a1504356c58 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 */
@@ -689,7 +693,10 @@ 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 +1602,7 @@ 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);