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authorAndrew Lunn <andrew@lunn.ch>2018-12-06 13:36:04 +0300
committerDavid S. Miller <davem@davemloft.net>2018-12-06 23:18:16 +0300
commita5dd308778a4e05e7b0b927cf18b89d1ebbff59c (patch)
tree719e191c23600a465a6281f0ee79dcc23bfa78d4 /include/net/dsa.h
parent5c327f673d2f134ac01c068b511c6ab816b4b41c (diff)
downloadlinux-a5dd308778a4e05e7b0b927cf18b89d1ebbff59c.tar.xz
net: dsa: Add overhead to tag protocol ops.
Each DSA tag protocol needs to add additional headers to the Ethernet frame in order to direct it towards a specific switch egress port. It must also remove the head from a frame received from a switch. Indicate the maximum size of these headers in the tag protocol ops structure, so the core can take these overheads into account. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/dsa.h')
-rw-r--r--include/net/dsa.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 23690c44e167..6ee2e24e0a6e 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -113,6 +113,7 @@ struct dsa_device_ops {
struct packet_type *pt);
int (*flow_dissect)(const struct sk_buff *skb, __be16 *proto,
int *offset);
+ unsigned int overhead;
};
struct dsa_switch_tree {