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net-next: dsa: add flow_dissect callback to struct dsa_device_ops

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When the flow dissector first sees packets coming in on a DSA devices the
802.3 header wont be located where the code expects it to be as the tag
is still present. Adding this new callback allows a DSA device to provide a
new function that the flow_dissector can use to get the correct protocol
and offset of the network header.

Signed-off-by: Muciri Gatimu <muciri@openmesh.com>
Signed-off-by: Shashidhar Lakkavalli <shashidhar.lakkavalli@openmesh.com>
Signed-off-by: John Crispin <john@phrozen.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
John Crispin 2017-08-09 14:41:17 +02:00 committed by David S. Miller
parent 68277a2c9d
commit 598a968011
1 changed files with 2 additions and 0 deletions
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2
include/net/dsa.h
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@ -106,6 +106,8 @@ struct dsa_device_ops {
struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev,
struct packet_type *pt,
struct net_device *orig_dev);
int (*flow_dissect)(const struct sk_buff *skb, __be16 *proto,
int *offset);
};
struct dsa_switch_tree {