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yaml
---
r: 284253
b: refs/heads/master
c: 0741bcb
h: refs/heads/master
i:
  284251: e3accd1
v: v3
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Amit Shah authored and Rusty Russell committed Jan 12, 2012
1 parent 9d36383 commit e887086
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Showing 2 changed files with 47 additions and 1 deletion.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 04486ed019d249249c00546704af12498a432c15
refs/heads/master: 0741bcb5584f9e2390ae6261573c4de8314999f2
46 changes: 46 additions & 0 deletions trunk/drivers/net/virtio_net.c
Original file line number Diff line number Diff line change
Expand Up @@ -1178,6 +1178,48 @@ static void __devexit virtnet_remove(struct virtio_device *vdev)
free_netdev(vi->dev);
}

#ifdef CONFIG_PM
static int virtnet_freeze(struct virtio_device *vdev)
{
struct virtnet_info *vi = vdev->priv;

virtqueue_disable_cb(vi->rvq);
virtqueue_disable_cb(vi->svq);
if (virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_VQ))
virtqueue_disable_cb(vi->cvq);

netif_device_detach(vi->dev);
cancel_delayed_work_sync(&vi->refill);

if (netif_running(vi->dev))
napi_disable(&vi->napi);

remove_vq_common(vi);

return 0;
}

static int virtnet_restore(struct virtio_device *vdev)
{
struct virtnet_info *vi = vdev->priv;
int err;

err = init_vqs(vi);
if (err)
return err;

if (netif_running(vi->dev))
virtnet_napi_enable(vi);

netif_device_attach(vi->dev);

if (!try_fill_recv(vi, GFP_KERNEL))
queue_delayed_work(system_nrt_wq, &vi->refill, 0);

return 0;
}
#endif

static struct virtio_device_id id_table[] = {
{ VIRTIO_ID_NET, VIRTIO_DEV_ANY_ID },
{ 0 },
Expand All @@ -1202,6 +1244,10 @@ static struct virtio_driver virtio_net_driver = {
.probe = virtnet_probe,
.remove = __devexit_p(virtnet_remove),
.config_changed = virtnet_config_changed,
#ifdef CONFIG_PM
.freeze = virtnet_freeze,
.restore = virtnet_restore,
#endif
};

static int __init init(void)
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