> From: Pablo Cascón <pablo.cas...@netronome.com>
>
> Add general use per-vNIC mailbox area and use it for VLAN filtering support.
> Initially proto is hardcoded to 802.1q.
>
...
> +static int
> +nfp_net_vlan_rx_add_vid(struct net_device *netdev, __be16 proto, u16
> +vid) {
> + struct nfp_net *nn = netdev_priv(netdev);
> +
> + /* Priority tagged packets with vlan id 0 are processed by the
> + * NFP as untagged packets
> + */
> + if (!vid)
> + return 0;
> +
> + nn_writew(nn, NFP_NET_CFG_VLAN_FILTER_VID, vid);
> + nn_writew(nn, NFP_NET_CFG_VLAN_FILTER_PROTO, ETH_P_8021Q);
If it's hard-coded, don't you want to fail the request in case proto is
different?
