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Diffstat (limited to 'include/linux/libata.h')
-rw-r--r--include/linux/libata.h16
1 files changed, 14 insertions, 2 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index a7cb46ca45e..2929282beb4 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -59,6 +59,8 @@
#define VPRINTK(fmt, args...)
#endif /* ATA_DEBUG */
+#define BPRINTK(fmt, args...) if (ap->flags & ATA_FLAG_DEBUGMSG) printk(KERN_ERR "%s: " fmt, __FUNCTION__, ## args)
+
#ifdef ATA_NDEBUG
#define assert(expr)
#else
@@ -120,6 +122,7 @@ enum {
ATA_FLAG_PIO_DMA = (1 << 8), /* PIO cmds via DMA */
ATA_FLAG_PIO_POLLING = (1 << 9), /* use polling PIO if LLD
* doesn't handle PIO interrupts */
+ ATA_FLAG_DEBUGMSG = (1 << 10),
ATA_QCFLAG_ACTIVE = (1 << 1), /* cmd not yet ack'd to scsi lyer */
ATA_QCFLAG_SG = (1 << 3), /* have s/g table? */
@@ -330,8 +333,6 @@ struct ata_port {
u8 ctl; /* cache of ATA control register */
u8 last_ctl; /* Cache last written value */
- unsigned int bus_state;
- unsigned int port_state;
unsigned int pio_mask;
unsigned int mwdma_mask;
unsigned int udma_mask;
@@ -660,6 +661,17 @@ static inline void ata_tf_init(struct ata_port *ap, struct ata_taskfile *tf, uns
tf->device = ATA_DEVICE_OBS | ATA_DEV1;
}
+static inline void ata_qc_reinit(struct ata_queued_cmd *qc)
+{
+ qc->__sg = NULL;
+ qc->flags = 0;
+ qc->cursect = qc->cursg = qc->cursg_ofs = 0;
+ qc->nsect = 0;
+ qc->nbytes = qc->curbytes = 0;
+
+ ata_tf_init(qc->ap, &qc->tf, qc->dev->devno);
+}
+
/**
* ata_irq_on - Enable interrupts on a port.