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author | Vlad Yasevich | 2012-11-15 09:49:12 +0100 |
---|---|---|
committer | David S. Miller | 2012-11-15 23:36:17 +0100 |
commit | de27d001d187721de775ed9e0c485aa6f517c745 (patch) | |
tree | 08947ffb402922f7384e61563d201761171fdbb1 /net | |
parent | net: Switch to using the new packet offload infrustructure (diff) | |
download | kernel-qcow2-linux-de27d001d187721de775ed9e0c485aa6f517c745.tar.gz kernel-qcow2-linux-de27d001d187721de775ed9e0c485aa6f517c745.tar.xz kernel-qcow2-linux-de27d001d187721de775ed9e0c485aa6f517c745.zip |
net: Add net protocol offload registration infrustructure
Create a new data structure for IPv4 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')
-rw-r--r-- | net/ipv4/af_inet.c | 12 | ||||
-rw-r--r-- | net/ipv4/protocol.c | 21 |
2 files changed, 33 insertions, 0 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 4c99c5fdba3f..3918d869d6d4 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -1566,6 +1566,13 @@ static const struct net_protocol tcp_protocol = { .netns_ok = 1, }; +static const struct net_offload tcp_offload = { + .gso_send_check = tcp_v4_gso_send_check, + .gso_segment = tcp_tso_segment, + .gro_receive = tcp4_gro_receive, + .gro_complete = tcp4_gro_complete, +}; + static const struct net_protocol udp_protocol = { .handler = udp_rcv, .err_handler = udp_err, @@ -1575,6 +1582,11 @@ static const struct net_protocol udp_protocol = { .netns_ok = 1, }; +static const struct net_offload udp_offload = { + .gso_send_check = udp4_ufo_send_check, + .gso_segment = udp4_ufo_fragment, +}; + static const struct net_protocol icmp_protocol = { .handler = icmp_rcv, .err_handler = ping_err, diff --git a/net/ipv4/protocol.c b/net/ipv4/protocol.c index 8918eff1426d..0f9d09f54bd9 100644 --- a/net/ipv4/protocol.c +++ b/net/ipv4/protocol.c @@ -29,6 +29,7 @@ #include <net/protocol.h> const struct net_protocol __rcu *inet_protos[MAX_INET_PROTOS] __read_mostly; +const struct net_offload __rcu *inet_offloads[MAX_INET_PROTOS] __read_mostly; /* * Add a protocol handler to the hash tables @@ -41,6 +42,13 @@ int inet_add_protocol(const struct net_protocol *prot, unsigned char protocol) } EXPORT_SYMBOL(inet_add_protocol); +int inet_add_offload(const struct net_offload *prot, unsigned char protocol) +{ + return !cmpxchg((const struct net_offload **)&inet_offloads[protocol], + NULL, prot) ? 0 : -1; +} +EXPORT_SYMBOL(inet_add_offload); + /* * Remove a protocol from the hash tables. */ @@ -57,3 +65,16 @@ int inet_del_protocol(const struct net_protocol *prot, unsigned char protocol) return ret; } EXPORT_SYMBOL(inet_del_protocol); + +int inet_del_offload(const struct net_offload *prot, unsigned char protocol) +{ + int ret; + + ret = (cmpxchg((const struct net_offload **)&inet_offloads[protocol], + prot, NULL) == prot) ? 0 : -1; + + synchronize_net(); + + return ret; +} +EXPORT_SYMBOL(inet_del_offload); |