From cb32f511a70be8967ac9025cf49c44324ced9a39 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sat, 19 Oct 2013 11:42:57 -0700 Subject: 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 Signed-off-by: David S. Miller --- net/ipv4/gre_offload.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'net/ipv4/gre_offload.c') 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)))) -- cgit v1.2.2