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Message-ID: <1367423622.11020.54.camel@edumazet-glaptop> Date: Wed, 01 May 2013 08:53:42 -0700 From: Eric Dumazet <eric.dumazet@...il.com> To: netdev <netdev@...r.kernel.org> Cc: Pravin B Shelar <pshelar@...ira.com>, "Steinar H. Gunderson" <sesse@...gle.com> Subject: [BUG] ipv6 and TSO on GRE is broken 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 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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