[PATCH] libata: interrupt driven pio for LLD
libata.h:
libata-core:
Add ATA_FLAG_PIO_POLLING flag for LLDs that expect interrupt for
command completion only.
sata_nv.c:
sata_vsc.c:
irq handler is wrapper around ata_host_intr(), can handle PIO interrupts.
sata_promise.c:
sata_sx4.c:
sata_qstor.c:
sata_mv.c:
Private irq handler.
Polling mode ATA_FLAG_PIO_POLLING used for compatibility.
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
diff --git a/drivers/scsi/sata_vsc.c b/drivers/scsi/sata_vsc.c
index cf94e01..92378d7 100644
--- a/drivers/scsi/sata_vsc.c
+++ b/drivers/scsi/sata_vsc.c
@@ -193,12 +193,12 @@
struct ata_port *ap;
ap = host_set->ports[i];
- if (ap && !(ap->flags &
- (ATA_FLAG_PORT_DISABLED|ATA_FLAG_NOINTR))) {
+ if (ap &&
+ !(ap->flags & ATA_FLAG_PORT_DISABLED)) {
struct ata_queued_cmd *qc;
qc = ata_qc_from_tag(ap, ap->active_tag);
- if (qc && (!(qc->tf.ctl & ATA_NIEN)))
+ if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING)))
handled += ata_host_intr(ap, qc);
}
}