Re: xdpgeneric, XDP_PASS, and bpf_xdp_adjust_head decapsulation dropping packets

[Brandon Cazander <brandon.cazander@xxxxxxxxxxxxxxx>]

[...]

> Thanks for also confirming. I've just send a patchset with fixes:
>  https://patchwork.ozlabs.org/project/netdev/list/?series=122796&state=%2a

Thank you for this; I tested this against my environment and it works as
expected again.

> I can recommend that you look at the selftest script test_xdp_vlan.sh:
>  https://github.com/torvalds/linux/blob/master/tools/testing/selftests/bpf/test_xdp_vlan.sh
> 
> Which uses veth and network namespaces for testing.  If you get the
> hint, then you can actually create these small scripts, that can
> function as unit and regression tests for XDP code snippets.
> 
> Our XDP-tutorial also uses veth as a development environment:
>  https://github.com/xdp-project/xdp-tutorial/tree/master/testenv

Great hint, I will definitely use these going forward!