On Tue, Feb 07, 2023 at 10:53:40AM +0100, Lorenzo Bianconi wrote:
> Now virtio-net supports xdp multi-buffer so add it to xdp_features
>
> Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
makes sense
Acked-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
> ---
> drivers/net/virtio_net.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
> index 692dff071782..ddc3dc7ea73c 100644
> --- a/drivers/net/virtio_net.c
> +++ b/drivers/net/virtio_net.c
> @@ -3281,7 +3281,7 @@ static int virtnet_xdp_set(struct net_device *dev, struct bpf_prog *prog,
> virtnet_clear_guest_offloads(vi);
> }
> if (!old_prog)
> - xdp_features_set_redirect_target(dev, false);
> + xdp_features_set_redirect_target(dev, true);
> } else {
> xdp_features_clear_redirect_target(dev);
> vi->xdp_enabled = false;
> @@ -3940,8 +3940,10 @@ static int virtnet_probe(struct virtio_device *vdev)
> INIT_WORK(&vi->config_work, virtnet_config_changed_work);
> spin_lock_init(&vi->refill_lock);
>
> - if (virtio_has_feature(vdev, VIRTIO_NET_F_MRG_RXBUF))
> + if (virtio_has_feature(vdev, VIRTIO_NET_F_MRG_RXBUF)) {
> vi->mergeable_rx_bufs = true;
> + dev->xdp_features |= NETDEV_XDP_ACT_RX_SG;
> + }
>
> if (virtio_has_feature(vi->vdev, VIRTIO_NET_F_NOTF_COAL)) {
> vi->rx_usecs = 0;
> --
> 2.39.1
