net: dsa: point out the tail taggers

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>
This commit is contained in:
Vladimir Oltean 2020-09-26 22:32:07 +03:00 committed by David S. Miller
parent 9790cf20a8
commit 7a6ffe764b
3 changed files with 3 additions and 0 deletions

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@ -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

View File

@ -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);

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@ -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");