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| author | ru <ru@FreeBSD.org> | 2005-02-18 22:31:19 +0000 |
|---|---|---|
| committer | ru <ru@FreeBSD.org> | 2005-02-18 22:31:19 +0000 |
| commit | 79c91b9063b488741efc68e2badefc608f4fb4d4 (patch) | |
| tree | d7beeb22153c2c6c50bd61f34eaab74d6bc20b1b /sys/sys/mbuf.h | |
| parent | f35103b728ad51548ba5fbf5f098634a370e7635 (diff) | |
| download | FreeBSD-src-79c91b9063b488741efc68e2badefc608f4fb4d4.zip FreeBSD-src-79c91b9063b488741efc68e2badefc608f4fb4d4.tar.gz | |
Allocate the M_VLANTAG m_pkthdr flag, and use it to indicate that
a packet has VLAN mbuf tag attached. This is faster to check than
m_tag_locate(), and allows us to use the tags in non-vlan(4) VLAN
producers.
The first argument to VLAN_OUTPUT_TAG() is now unused but retained
for backward compatibility.
While here, embellish a fix in rev. 1.174 of if_ethersubr.c -- it
now checks for packets with VLAN (mbuf) tags, and it should now
be possible to bridge(4) on vlan(4)'s whose parent interfaces
support VLAN decapsulation in hardware.
Reviewed by: sam
Diffstat (limited to 'sys/sys/mbuf.h')
| -rw-r--r-- | sys/sys/mbuf.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/sys/mbuf.h b/sys/sys/mbuf.h index d8e84a6..c954f92 100644 --- a/sys/sys/mbuf.h +++ b/sys/sys/mbuf.h @@ -178,6 +178,7 @@ struct mbuf { #define M_FRAG 0x0800 /* packet is a fragment of a larger packet */ #define M_FIRSTFRAG 0x1000 /* packet is first fragment */ #define M_LASTFRAG 0x2000 /* packet is last fragment */ +#define M_VLANTAG 0x10000 /* packet has VLAN tag attached */ /* * External buffer types: identify ext_buf type. @@ -195,7 +196,8 @@ struct mbuf { */ #define M_COPYFLAGS (M_PKTHDR|M_EOR|M_RDONLY|M_PROTO1|M_PROTO1|M_PROTO2|\ M_PROTO3|M_PROTO4|M_PROTO5|M_SKIP_FIREWALL|\ - M_BCAST|M_MCAST|M_FRAG|M_FIRSTFRAG|M_LASTFRAG) + M_BCAST|M_MCAST|M_FRAG|M_FIRSTFRAG|M_LASTFRAG|\ + M_VLANTAG) /* * Flags indicating hw checksum support and sw checksum requirements. |
