diff options
| author | Eric Dumazet <edumazet@google.com> | 2013-10-19 22:42:57 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-10-20 03:36:19 +0400 |
| commit | cb32f511a70be8967ac9025cf49c44324ced9a39 (patch) | |
| tree | 9e3fa3245096053bcf67cc61b60a72f3bb946008 /net/ipv4/af_inet.c | |
| parent | 3347c960295583eee3fd58e5c539fb1972fbc005 (diff) | |
| download | linux-cb32f511a70be8967ac9025cf49c44324ced9a39.tar.xz | |
ipip: add GSO/TSO support
Now inet_gso_segment() is stackable, its relatively easy to
implement GSO/TSO support for IPIP
Performance results, when segmentation is done after tunnel
device (as no NIC is yet enabled for TSO IPIP support) :
Before patch :
lpq83:~# ./netperf -H 7.7.9.84 -Cc
MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 7.7.9.84 () port 0 AF_INET
Recv Send Send Utilization Service Demand
Socket Socket Message Elapsed Send Recv Send Recv
Size Size Size Time Throughput local remote local remote
bytes bytes bytes secs. 10^6bits/s % S % S us/KB us/KB
87380 16384 16384 10.00 3357.88 5.09 3.70 2.983 2.167
After patch :
lpq83:~# ./netperf -H 7.7.9.84 -Cc
MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 7.7.9.84 () port 0 AF_INET
Recv Send Send Utilization Service Demand
Socket Socket Message Elapsed Send Recv Send Recv
Size Size Size Time Throughput local remote local remote
bytes bytes bytes secs. 10^6bits/s % S % S us/KB us/KB
87380 16384 16384 10.00 7710.19 4.52 6.62 1.152 1.687
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/af_inet.c')
| -rw-r--r-- | net/ipv4/af_inet.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 5783ab5b5ef8..4049906010f7 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -1291,6 +1291,7 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb, SKB_GSO_DODGY | SKB_GSO_TCP_ECN | SKB_GSO_GRE | + SKB_GSO_IPIP | SKB_GSO_TCPV6 | SKB_GSO_UDP_TUNNEL | SKB_GSO_MPLS | @@ -1656,6 +1657,13 @@ static struct packet_offload ip_packet_offload __read_mostly = { }, }; +static const struct net_offload ipip_offload = { + .callbacks = { + .gso_send_check = inet_gso_send_check, + .gso_segment = inet_gso_segment, + }, +}; + static int __init ipv4_offload_init(void) { /* @@ -1667,6 +1675,7 @@ static int __init ipv4_offload_init(void) pr_crit("%s: Cannot add TCP protocol offload\n", __func__); dev_add_offload(&ip_packet_offload); + inet_add_offload(&ipip_offload, IPPROTO_IPIP); return 0; } |