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[PATCH] sata_nv: add hotplug support

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Add hotplug support.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo 2006-06-17 15:49:56 +09:00 committed by Jeff Garzik
parent 39f8758259
commit 5a44efff4f
1 changed files with 8 additions and 1 deletions
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9
drivers/scsi/sata_nv.c
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@ -69,7 +69,8 @@ enum {
NV_INT_PORT_SHIFT = 4, /* each port occupies 4 bits */
NV_INT_ALL = 0x0f,
NV_INT_MASK = NV_INT_DEV,
NV_INT_MASK = NV_INT_DEV |
NV_INT_ADDED | NV_INT_REMOVED,
/* INT_CONFIG */
NV_INT_CONFIG = 0x12,
@ -324,6 +325,12 @@ static int nv_host_intr(struct ata_port *ap, u8 irq_stat)
struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->active_tag);
int handled;
/* freeze if hotplugged */
if (unlikely(irq_stat & (NV_INT_ADDED | NV_INT_REMOVED))) {
ata_port_freeze(ap);
return 1;
}
/* bail out if not our interrupt */
if (!(irq_stat & NV_INT_DEV))
return 0;