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 fine.
# ethtool -i enP2p1s0f1
driver: thunder-nicvf
version: 1.0
firmware-version:
expansion-rom-version:
bus-info: 0002:01:00.1
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: yes
supports-priv-flags: no
[0.000000] Boot CPU: AArch64 Processor [431f0a10]
[0.000000] Machine model: cavium,thunder-88xx
[0.000000] efi: Getting EFI parameters from FDT:
[0.000000] efi: EFI v2.40 by Cavium Thunder cn88xx EFI
ThunderX-Firmware-Release-1.22.17 Sep 21 2017 14:26:28
[0.000000] efi: ACPI=0xffff0000 ACPI 2.0=0xffff0014 SMBIOS=0xffef0000 SMBIOS
3.0=0x10ffaf30000 ESRT=0x10fff673e18
What other information do you need to debug this?
Thanks,
Florian
