net: dsa: Implement flow_dissect callback for tag_qca

xiaofeis · davem330 · commit 6e57d72a84db · 2019-03-28T16:57:19.000-07:00
Add flow_dissect for qca tagged packet to get the right hash.

Signed-off-by: Xiaofei Shen &lt;xiaofeis@codeaurora.org&gt;
Reviewed-by: Andrew Lunn &lt;andrew@lunn.ch&gt;
Reviewed-by: Vinod Koul &lt;vkoul@kernel.org&gt;
Reviewed-by: Florian Fainelli &lt;f.fainelli@gmail.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
diff --git a/net/dsa/tag_qca.c b/net/dsa/tag_qca.c
@@ -98,8 +98,18 @@ static struct sk_buff *qca_tag_rcv(struct sk_buff *skb, struct net_device *dev,
 	return skb;
 }
 
+static int qca_tag_flow_dissect(const struct sk_buff *skb, __be16 *proto,
+                                int *offset)
+{
+	*offset = QCA_HDR_LEN;
+	*proto = ((__be16 *)skb->data)[0];
+
+	return 0;
+}
+
 const struct dsa_device_ops qca_netdev_ops = {
 	.xmit	= qca_tag_xmit,
 	.rcv	= qca_tag_rcv,
+	.flow_dissect = qca_tag_flow_dissect,
 	.overhead = QCA_HDR_LEN,
 };
