linux-kernel - [PATCH RFC net-next 11/19] net: dsa: tag_lan9303: add .flow

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Message-Id: <20191230143028.27313-12-alobakin@dlink.ru>
Date:   Mon, 30 Dec 2019 17:30:19 +0300
From:   Alexander Lobakin <alobakin@...nk.ru>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     Edward Cree <ecree@...arflare.com>, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Hauke Mehrtens <hauke@...ke-m.de>,
        Sean Wang <sean.wang@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Jiri Pirko <jiri@...lanox.com>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Alexander Lobakin <alobakin@...nk.ru>,
        Taehee Yoo <ap420073@...il.com>,
        Stephen Hemminger <stephen@...workplumber.org>,
        Stanislav Fomichev <sdf@...gle.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Song Liu <songliubraving@...com>,
        Matteo Croce <mcroce@...hat.com>,
        Jakub Sitnicki <jakub@...udflare.com>,
        Paul Blakey <paulb@...lanox.com>,
        Yoshiki Komachi <komachi.yoshiki@...il.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: [PATCH RFC net-next 11/19] net: dsa: tag_lan9303: add .flow_dissect() callback

This fixes Rx packet hashing on RPS-enabled systems.
Misc: fix lan9303_netdev_ops identation.

Signed-off-by: Alexander Lobakin <alobakin@...nk.ru>
---
 net/dsa/tag_lan9303.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/net/dsa/tag_lan9303.c b/net/dsa/tag_lan9303.c
index eb0e7a32e53d..d328a44381a9 100644
--- a/net/dsa/tag_lan9303.c
+++ b/net/dsa/tag_lan9303.c
@@ -128,12 +128,20 @@ static struct sk_buff *lan9303_rcv(struct sk_buff *skb, struct net_device *dev,
 	return skb;
 }
 
+static void lan9303_flow_dissect(const struct sk_buff *skb, __be16 *proto,
+				 int *offset)
+{
+	*offset = LAN9303_TAG_LEN;
+	*proto = *(__be16 *)(skb->data + 2);
+}
+
 static const struct dsa_device_ops lan9303_netdev_ops = {
-	.name = "lan9303",
-	.proto	= DSA_TAG_PROTO_LAN9303,
-	.xmit = lan9303_xmit,
-	.rcv = lan9303_rcv,
-	.overhead = LAN9303_TAG_LEN,
+	.name		= "lan9303",
+	.proto		= DSA_TAG_PROTO_LAN9303,
+	.xmit		= lan9303_xmit,
+	.rcv		= lan9303_rcv,
+	.flow_dissect	= lan9303_flow_dissect,
+	.overhead	= LAN9303_TAG_LEN,
 };
 
 MODULE_LICENSE("GPL");
-- 
2.24.1