net: dsa: point out the tail taggers (7a6ffe76) · Commits · 戴 / test

The Marvell 88E6060 uses tag_trailer.c and the KSZ8795, KSZ9477 and KSZ9893 switches also use tail tags. Tell that to the DSA core, since this makes a difference for the flow dissector. Most switches break the parsing of frame headers, but these ones don't, so no flow dissector adjustment needs to be done for them. Signed-off-by:

Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by:

Andrew Lunn <andrew@lunn.ch> Signed-off-by:

David S. Miller <davem@davemloft.net>

include/net/dsa.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -90,6 +90,7 @@ struct dsa_device_ops {
		* its RX filter.
		*/
		bool promisc_on_master;
		bool tail_tag;
		};

		/* This structure defines the control interfaces that are overlayed by the

net/dsa/tag_ksz.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -237,6 +237,7 @@ static const struct dsa_device_ops ksz9893_netdev_ops = {
		.xmit = ksz9893_xmit,
		.rcv = ksz9477_rcv,
		.overhead = KSZ_INGRESS_TAG_LEN,
		.tail_tag = true,
		};

		DSA_TAG_DRIVER(ksz9893_netdev_ops);

net/dsa/tag_trailer.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -83,6 +83,7 @@ static const struct dsa_device_ops trailer_netdev_ops = {
		.xmit = trailer_xmit,
		.rcv = trailer_rcv,
		.overhead = 4,
		.tail_tag = true,
		};

		MODULE_LICENSE("GPL");

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