On Mon, Feb 25, 2019 at 1:07 PM <xiangxia.m....@gmail.com> wrote:

> The encapsulation is not supported for mlx5 VFs. When we try to
> offload that action, the -EINVAL is returned, but not -EOPNOTSUPP.
> This patch changes the returned value and ignore to confuse user.

FWIW, note that this changes the behavior towards user-space, I don't see
concrete harm done here but we should realize that

> For example: (p2p1_0 is VF net device)
> tc filter add dev p2p1_0 protocol ip  parent ffff: prio 1 flower skip_sw \
>         src_mac e4:11:22:33:44:01       \
>         action tunnel_key set           \
>         src_ip 1.1.1.100                \
>         dst_ip 1.1.1.200                \
>         dst_port 4789 id 100            \
>         action mirred egress redirect dev vxlan0
>
> "RTNETLINK answers: Invalid argument"

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