netdev - [PATCH] net: dsa: Implement flow_dissect callback for tag

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Message-Id: <1553650359-15959-1-git-send-email-xiaofeis@codeaurora.org>
Date:   Wed, 27 Mar 2019 09:32:39 +0800
From:   xiaofeis <xiaofeis@...eaurora.org>
To:     davem@...emloft.net
Cc:     vkoul@...nel.org, netdev@...r.kernel.org, andrew@...n.ch,
        linux-arm-msm@...r.kernel.org, bjorn.andersson@...aro.org,
        vivien.didelot@...il.com, f.fainelli@...il.com,
        niklas.cassel@...aro.org, xiazha@...eaurora.org,
        xiaofeis <xiaofeis@...eaurora.org>
Subject: [PATCH] net: dsa: Implement flow_dissect callback for tag_qca

Add flow_dissect for qca tagged packet to get the right hash.

Signed-off-by: xiaofeis <xiaofeis@...eaurora.org>
---
 net/dsa/tag_qca.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/net/dsa/tag_qca.c b/net/dsa/tag_qca.c
index e886a3c..f4b4de3 100644
--- a/net/dsa/tag_qca.c
+++ b/net/dsa/tag_qca.c
@@ -113,8 +113,18 @@ 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,
 };
-- 
1.9.1