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 <[email protected]>

makes sense


Acked-by: Michael S. Tsirkin <[email protected]>

> ---
>  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

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