Re: broken ipv6 tcp csum offload on thunderx

2017-11-22 Thread Sunil Kovvuri
On Wed, Nov 22, 2017 at 2:24 PM, Florian Westphal wrote: > Hi. > > We are experiencing broken ipv6 connectivity with 4.14 kernel > on arm64 with thunderx. > > ping6 still works, but it looks like tcp syn packets get sent > with a wrong checksum -- socket remains in SYN-SENT state. > > after runnin

broken ipv6 tcp csum offload on thunderx

2017-11-22 Thread Florian Westphal
Hi. We are experiencing broken ipv6 connectivity with 4.14 kernel on arm64 with thunderx. ping6 still works, but it looks like tcp syn packets get sent with a wrong checksum -- socket remains in SYN-SENT state. after running ethtool -K enP2p1s0f1 tx-checksum-ipv6 off ipv6 tcp appears to works