[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>

1 files changed, 20 insertions, 0 deletions

diff --git a/drivers/scsi/aacraid/rx.c b/drivers/scsi/aacraid/rx.c
index 1ff25f49fada..a8459faf87ca 100644
--- a/drivers/scsi/aacraid/rx.c
+++ b/drivers/scsi/aacraid/rx.c
@@ -88,6 +88,16 @@ static irqreturn_t aac_rx_intr(int irq, void *dev_id, struct pt_regs *regs)
 }
 
 /**
+ *      aac_rx_disable_interrupt        -       Disable interrupts
+ *      @dev: Adapter
+ */
+
+static void aac_rx_disable_interrupt(struct aac_dev *dev)
+{
+        rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
+}
+
+/**
  *      rx_sync_cmd     -       send a command and wait
  *      @dev: Adapter
  *      @command: Command to execute
@@ -412,10 +422,19 @@ int aac_rx_init(struct aac_dev *dev)
          *      Fill in the function dispatch table.
          */
         dev->a_ops.adapter_interrupt = aac_rx_interrupt_adapter;
+        dev->a_ops.adapter_disable_int = aac_rx_disable_interrupt;
         dev->a_ops.adapter_notify = aac_rx_notify_adapter;
         dev->a_ops.adapter_sync_cmd = rx_sync_cmd;
         dev->a_ops.adapter_check_health = aac_rx_check_health;
 
+        /*
+         *      First clear out all interrupts.  Then enable the one's that we
+         *      can handle.
+         */
+        rx_writeb(dev, MUnit.OIMR, 0xff);
+        rx_writel(dev, MUnit.ODR, 0xffffffff);
+        rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xfb);
+
         if (aac_init_adapter(dev) == NULL)
                 goto error_irq;
         /*
@@ -438,6 +457,7 @@ error_kfree:
         kfree(dev->queues);
 
 error_irq:
+        rx_writeb(dev, MUnit.OIMR, dev->OIMR = 0xff);
         free_irq(dev->scsi_host_ptr->irq, (void *)dev);
 
 error_iounmap: