From 396138f03f4521c55ecc3a5dd75d4c56e6323244 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Tue, 7 Oct 2008 13:46:07 +0000 Subject: dsa: add support for Trailer tagging format This adds support for the Trailer switch tagging format. This is another tagging that doesn't explicitly mark tagged packets with a distinct ethertype, so that we need to add a similar hack in the receive path as for the Original DSA tagging format. Signed-off-by: Lennert Buytenhek Tested-by: Byron Bradley Tested-by: Tim Ellis Signed-off-by: David S. Miller --- include/linux/netdevice.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 97f0c64c152a..d3ea3de70a8a 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -812,6 +812,16 @@ static inline bool netdev_uses_dsa_tags(struct net_device *dev) return 0; } +static inline bool netdev_uses_trailer_tags(struct net_device *dev) +{ +#ifdef CONFIG_NET_DSA_TAG_TRAILER + if (dev->dsa_ptr != NULL) + return dsa_uses_trailer_tags(dev->dsa_ptr); +#endif + + return 0; +} + /** * netdev_priv - access network device private data * @dev: network device -- cgit v1.2.1