On Mon, Dec 5, 2011 at 8:59 AM, Jason Wang <jasowang@xxxxxxxxxx> wrote:
> +static int virtnet_set_fd(struct net_device *dev, u32 pfn)
> +{
> + struct virtnet_info *vi = netdev_priv(dev);
> + struct virtio_device *vdev = vi->vdev;
> +
> + if (virtio_has_feature(vdev, VIRTIO_NET_F_HOST_FD)) {
> + vdev->config->set(vdev,
> + offsetof(struct virtio_net_config_fd, addr),
> + &pfn, sizeof(u32));
Please use the virtio model (i.e. virtqueues) instead of shared
memory. Mapping a page breaks the virtio abstraction.
Stefan
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