From: John Crispin Date: Wed, 9 Aug 2017 12:41:18 +0000 (+0200) Subject: net-next: tag_mtk: add flow_dissect callback to the ops struct X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=2dd592b274861021018446102fb443e24f72fe72;p=openwrt%2Fstaging%2Fblogic.git net-next: tag_mtk: add flow_dissect callback to the ops struct The MT7530 inserts the 4 magic header in between the 802.3 address and protocol field. The patch implements the callback that can be called by the flow dissector to figure out the real protocol and offset of the network header. With this patch applied we can properly parse the packet and thus make hashing function properly. Signed-off-by: Muciri Gatimu Signed-off-by: Shashidhar Lakkavalli Signed-off-by: John Crispin Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- diff --git a/net/dsa/tag_mtk.c b/net/dsa/tag_mtk.c index 2f32b7ea3365..02163c045a96 100644 --- a/net/dsa/tag_mtk.c +++ b/net/dsa/tag_mtk.c @@ -87,7 +87,17 @@ static struct sk_buff *mtk_tag_rcv(struct sk_buff *skb, struct net_device *dev, return skb; } +static int mtk_tag_flow_dissect(const struct sk_buff *skb, __be16 *proto, + int *offset) +{ + *offset = 4; + *proto = ((__be16 *)skb->data)[1]; + + return 0; +} + const struct dsa_device_ops mtk_netdev_ops = { - .xmit = mtk_tag_xmit, - .rcv = mtk_tag_rcv, + .xmit = mtk_tag_xmit, + .rcv = mtk_tag_rcv, + .flow_dissect = mtk_tag_flow_dissect, };