[SCSI] aacraid: driver shutdown method
Add in pci shutdown method so that the adapter shuts down correctly and
flushes its cache. Shutdown should also disable the adapter's interrupt
when shutdown (in particularly if the driver is rmmod'd) to prevent
spurious hardware activities.
Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/aacraid/sa.c b/drivers/scsi/aacraid/sa.c
index 0680249..3900abc 100644
--- a/drivers/scsi/aacraid/sa.c
+++ b/drivers/scsi/aacraid/sa.c
@@ -82,6 +82,16 @@
}
/**
+ * aac_sa_disable_interrupt - disable interrupt
+ * @dev: Which adapter to enable.
+ */
+
+static void aac_sa_disable_interrupt (struct aac_dev *dev)
+{
+ sa_writew(dev, SaDbCSR.PRISETIRQMASK, 0xffff);
+}
+
+/**
* aac_sa_notify_adapter - handle adapter notification
* @dev: Adapter that notification is for
* @event: Event to notidy
@@ -214,9 +224,8 @@
static void aac_sa_interrupt_adapter (struct aac_dev *dev)
{
- u32 ret;
sa_sync_cmd(dev, BREAKPOINT_REQUEST, 0, 0, 0, 0, 0, 0,
- &ret, NULL, NULL, NULL, NULL);
+ NULL, NULL, NULL, NULL, NULL);
}
/**
@@ -352,10 +361,18 @@
*/
dev->a_ops.adapter_interrupt = aac_sa_interrupt_adapter;
+ dev->a_ops.adapter_disable_int = aac_sa_disable_interrupt;
dev->a_ops.adapter_notify = aac_sa_notify_adapter;
dev->a_ops.adapter_sync_cmd = sa_sync_cmd;
dev->a_ops.adapter_check_health = aac_sa_check_health;
+ /*
+ * First clear out all interrupts. Then enable the one's that
+ * we can handle.
+ */
+ sa_writew(dev, SaDbCSR.PRISETIRQMASK, 0xffff);
+ sa_writew(dev, SaDbCSR.PRICLEARIRQMASK, (PrintfReady | DOORBELL_1 |
+ DOORBELL_2 | DOORBELL_3 | DOORBELL_4));
if(aac_init_adapter(dev) == NULL)
goto error_irq;
@@ -381,6 +398,7 @@
kfree(dev->queues);
error_irq:
+ sa_writew(dev, SaDbCSR.PRISETIRQMASK, 0xffff);
free_irq(dev->scsi_host_ptr->irq, (void *)dev);
error_iounmap: