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authorAmit Shah <amitshah@gmx.net>2008-02-29 16:24:50 +0530
committerRusty Russell <rusty@rustcorp.com.au>2008-03-17 22:58:20 +1100
commitda74e89d40995600b3b07ac500084920247687ce (patch)
treeee38d53aa14ed15f0fc1474426210e8a89485ad0
parentbdc1681cdf1ab6a65fa935a2b3f8fc63b20c54ea (diff)
virtio: Enable netpoll interface for netconsole logging
Add a new poll_controller handler that the netpoll interface needs. This enables netconsole logging from a kvm guest over the virtio net interface. Signed-off-by: Amit Shah <amitshah@gmx.net> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
-rw-r--r--drivers/net/virtio_net.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 19fd4cb0ddf8..e575df83e5c2 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -294,6 +294,15 @@ again:
return 0;
}
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void virtnet_netpoll(struct net_device *dev)
+{
+ struct virtnet_info *vi = netdev_priv(dev);
+
+ napi_schedule(&vi->napi);
+}
+#endif
+
static int virtnet_open(struct net_device *dev)
{
struct virtnet_info *vi = netdev_priv(dev);
@@ -336,6 +345,9 @@ static int virtnet_probe(struct virtio_device *vdev)
dev->stop = virtnet_close;
dev->hard_start_xmit = start_xmit;
dev->features = NETIF_F_HIGHDMA;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ dev->poll_controller = virtnet_netpoll;
+#endif
SET_NETDEV_DEV(dev, &vdev->dev);
/* Do we support "hardware" checksums? */