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| author | Eric Dumazet <edumazet@google.com> | 2013-10-20 20:47:30 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-10-21 18:49:39 -0400 |
| commit | 61c1db7fae21ed33c614356a43bf6580c5e53118 (patch) | |
| tree | 74e9756895dcf0006f57791684f6435d29c226ab /include/linux/skbuff.h | |
| parent | d3e5e0062de5f2c6444455b5708a62a50c93a50c (diff) | |
| download | lwn-61c1db7fae21ed33c614356a43bf6580c5e53118.tar.gz lwn-61c1db7fae21ed33c614356a43bf6580c5e53118.zip | |
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 'include/linux/skbuff.h')
| -rw-r--r-- | include/linux/skbuff.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 60729134d253..2c154976394b 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -320,9 +320,11 @@ enum { SKB_GSO_IPIP = 1 << 7, - SKB_GSO_UDP_TUNNEL = 1 << 8, + SKB_GSO_SIT = 1 << 8, - SKB_GSO_MPLS = 1 << 9, + SKB_GSO_UDP_TUNNEL = 1 << 9, + + SKB_GSO_MPLS = 1 << 10, }; #if BITS_PER_LONG > 32 |