From: Eric Dumazet <eric.dumazet@gmail.com>
To: netdev <netdev@vger.kernel.org>
Cc: Pravin B Shelar <pshelar@nicira.com>,
"Steinar H. Gunderson" <sesse@google.com>
Subject: [BUG] ipv6 and TSO on GRE is broken
Date: Wed, 01 May 2013 08:53:42 -0700 [thread overview]
Message-ID: <1367423622.11020.54.camel@edumazet-glaptop> (raw)
This was reported by Steinar.
Sending this to netdev, as I wont have time to debug this in the near
future. (~ 3 days)
3.9 and latest net-next are broken for IPv6 on top of GRE tunnel
GSO seems OK, but TSO not :
lpq83:~# ethtool -K gre1 tso off gso on
lpq83:~# netperf -H 4444::555:0084
MIGRATED TCP STREAM TEST from ::0 (::) port 0 AF_INET6 to 4444::555:0084
() port 0 AF_INET6
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 10.00 3789.10
lpq83:~# ethtool -K gre1 tso on
lpq83:~# netperf -H 4444::555:0084
MIGRATED TCP STREAM TEST from ::0 (::) port 0 AF_INET6 to 4444::555:0084
() port 0 AF_INET6
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 10.00 321.27
No problem for IPv4
Thanks
next reply other threads:[~2013-05-01 15:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-01 15:53 Eric Dumazet [this message]
2013-05-02 7:02 ` [BUG] ipv6 and TSO on GRE is broken Pravin Shelar
2013-05-02 8:00 ` Pravin Shelar
2013-05-02 8:32 ` Berge Schwebs Bjørlo
2013-05-03 2:17 ` Pravin Shelar
2013-05-03 14:52 ` Berge Schwebs Bjørlo
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