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author | Vlad Yasevich <vyasevic@redhat.com> | 2012-11-15 08:49:13 +0000 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2012-11-15 17:36:17 -0500 |
commit | 8ca896cfdd17f32f5aa2747644733ebf3725360d (patch) | |
tree | 64a6ad61af635285a26a039f42bdc78ae8855979 /net/ipv6/protocol.c | |
parent | de27d001d187721de775ed9e0c485aa6f517c745 (diff) | |
download | linux-3.10-8ca896cfdd17f32f5aa2747644733ebf3725360d.tar.gz linux-3.10-8ca896cfdd17f32f5aa2747644733ebf3725360d.tar.bz2 linux-3.10-8ca896cfdd17f32f5aa2747644733ebf3725360d.zip |
ipv6: Add new offload registration infrastructure.
Create a new data structure for IPv6 protocols that holds GRO/GSO
callbacks and a new array to track the protocols that register GRO/GSO.
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/protocol.c')
-rw-r--r-- | net/ipv6/protocol.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/net/ipv6/protocol.c b/net/ipv6/protocol.c index 053082dfc93..f7c53a7d5cb 100644 --- a/net/ipv6/protocol.c +++ b/net/ipv6/protocol.c @@ -26,6 +26,7 @@ #include <net/protocol.h> const struct inet6_protocol __rcu *inet6_protos[MAX_INET_PROTOS] __read_mostly; +const struct net_offload __rcu *inet6_offloads[MAX_INET_PROTOS] __read_mostly; int inet6_add_protocol(const struct inet6_protocol *prot, unsigned char protocol) { @@ -34,6 +35,13 @@ int inet6_add_protocol(const struct inet6_protocol *prot, unsigned char protocol } EXPORT_SYMBOL(inet6_add_protocol); +int inet6_add_offload(const struct net_offload *prot, unsigned char protocol) +{ + return !cmpxchg((const struct net_offload **)&inet6_offloads[protocol], + NULL, prot) ? 0 : -1; +} +EXPORT_SYMBOL(inet6_add_offload); + /* * Remove a protocol from the hash tables. */ @@ -50,3 +58,16 @@ int inet6_del_protocol(const struct inet6_protocol *prot, unsigned char protocol return ret; } EXPORT_SYMBOL(inet6_del_protocol); + +int inet6_del_offload(const struct net_offload *prot, unsigned char protocol) +{ + int ret; + + ret = (cmpxchg((const struct net_offload **)&inet6_offloads[protocol], + prot, NULL) == prot) ? 0 : -1; + + synchronize_net(); + + return ret; +} +EXPORT_SYMBOL(inet6_del_offload); |