IPoIB: Disable NAPI while CQ is being drained

[pandora-kernel.git] / drivers / infiniband / ulp / ipoib / ipoib_ib.c

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index da60827..e7e5adf 100644 (file)
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -685,7 +685,8 @@ int ipoib_ib_dev_open(struct net_device *dev)
        queue_delayed_work(ipoib_workqueue, &priv->ah_reap_task,
                           round_jiffies_relative(HZ));
 
-       set_bit(IPOIB_FLAG_INITIALIZED, &priv->flags);
+       if (!test_and_set_bit(IPOIB_FLAG_INITIALIZED, &priv->flags))
+               napi_enable(&priv->napi);
 
        return 0;
 }
@@ -804,7 +805,8 @@ int ipoib_ib_dev_stop(struct net_device *dev, int flush)
        struct ipoib_tx_buf *tx_req;
        int i;
 
-       clear_bit(IPOIB_FLAG_INITIALIZED, &priv->flags);
+       if (test_and_clear_bit(IPOIB_FLAG_INITIALIZED, &priv->flags))
+               napi_disable(&priv->napi);
 
        ipoib_cm_dev_stop(dev);