diff options
| author | Eric Dumazet <edumazet@google.com> | 2013-10-19 11:42:57 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-10-19 19:36:19 -0400 |
| commit | cb32f511a70be8967ac9025cf49c44324ced9a39 (patch) | |
| tree | 9e3fa3245096053bcf67cc61b60a72f3bb946008 /net/ipv4/gre_offload.c | |
| parent | 3347c960295583eee3fd58e5c539fb1972fbc005 (diff) | |
| download | lwn-cb32f511a70be8967ac9025cf49c44324ced9a39.tar.gz lwn-cb32f511a70be8967ac9025cf49c44324ced9a39.zip | |
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/gre_offload.c')
| -rw-r--r-- | net/ipv4/gre_offload.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv4/gre_offload.c b/net/ipv4/gre_offload.c index 55e6bfb3a289..e5d436188464 100644 --- a/net/ipv4/gre_offload.c +++ b/net/ipv4/gre_offload.c @@ -39,7 +39,8 @@ static struct sk_buff *gre_gso_segment(struct sk_buff *skb, SKB_GSO_UDP | SKB_GSO_DODGY | SKB_GSO_TCP_ECN | - SKB_GSO_GRE))) + SKB_GSO_GRE | + SKB_GSO_IPIP))) goto out; if (unlikely(!pskb_may_pull(skb, sizeof(*greh)))) |