Messages in this thread Patch in this message | | | From | Rusty Russell <> | Subject | [PATCH 4/4] virtio: Enable netpoll interface for netconsole logging | Date | Tue, 11 Mar 2008 23:06:30 +1100 |
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From: "Amit Shah" <amitshah@gmx.net>
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> --- drivers/net/virtio_net.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c --- 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_d 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? */
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