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authorEric Dumazet <edumazet@google.com>2013-10-20 20:47:30 -0700
committerDavid S. Miller <davem@davemloft.net>2013-10-21 18:49:39 -0400
commit61c1db7fae21ed33c614356a43bf6580c5e53118 (patch)
tree74e9756895dcf0006f57791684f6435d29c226ab /net/core/ethtool.c
parentd3e5e0062de5f2c6444455b5708a62a50c93a50c (diff)
downloadlinux-61c1db7fae21ed33c614356a43bf6580c5e53118.tar.bz2
ipv6: sit: add GSO/TSO support
Now ipv6_gso_segment() is stackable, its relatively easy to implement GSO/TSO support for SIT tunnels Performance results, when segmentation is done after tunnel device (as no NIC is yet enabled for TSO SIT support) : Before patch : lpq84:~# ./netperf -H 2002:af6:1153:: -Cc MIGRATED TCP STREAM TEST from ::0 (::) port 0 AF_INET6 to 2002:af6:1153:: () port 0 AF_INET6 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 3168.31 4.81 4.64 2.988 2.877 After patch : lpq84:~# ./netperf -H 2002:af6:1153:: -Cc MIGRATED TCP STREAM TEST from ::0 (::) port 0 AF_INET6 to 2002:af6:1153:: () port 0 AF_INET6 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 5525.00 7.76 5.17 2.763 1.840 Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/ethtool.c')
-rw-r--r--net/core/ethtool.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 8cab7744790e..862989898f61 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -82,6 +82,7 @@ static const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN]
[NETIF_F_FSO_BIT] = "tx-fcoe-segmentation",
[NETIF_F_GSO_GRE_BIT] = "tx-gre-segmentation",
[NETIF_F_GSO_IPIP_BIT] = "tx-ipip-segmentation",
+ [NETIF_F_GSO_SIT_BIT] = "tx-sit-segmentation",
[NETIF_F_GSO_UDP_TUNNEL_BIT] = "tx-udp_tnl-segmentation",
[NETIF_F_GSO_MPLS_BIT] = "tx-mpls-segmentation",