netdev - Re: [PATCH bpf-next v8 11/17] selftests/bpf: Verify xdp_metadata xdp->af

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Message-ID: <CAKH8qBtaH0uN9WJ_rhD5bHynvsGjrXK4X61fA+pa8kJwjxxwhQ@mail.gmail.com>
Date:   Fri, 20 Jan 2023 14:48:31 -0800
From:   Stanislav Fomichev <sdf@...gle.com>
To:     Martin KaFai Lau <martin.lau@...ux.dev>
Cc:     ast@...nel.org, daniel@...earbox.net, andrii@...nel.org,
        song@...nel.org, yhs@...com, john.fastabend@...il.com,
        kpsingh@...nel.org, haoluo@...gle.com, jolsa@...nel.org,
        David Ahern <dsahern@...il.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Willem de Bruijn <willemb@...gle.com>,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        Anatoly Burakov <anatoly.burakov@...el.com>,
        Alexander Lobakin <alexandr.lobakin@...el.com>,
        Magnus Karlsson <magnus.karlsson@...il.com>,
        Maryam Tahhan <mtahhan@...hat.com>, xdp-hints@...-project.net,
        netdev@...r.kernel.org, bpf@...r.kernel.org
Subject: Re: [PATCH bpf-next v8 11/17] selftests/bpf: Verify xdp_metadata
 xdp->af_xdp path

On Fri, Jan 20, 2023 at 2:19 PM Martin KaFai Lau <martin.lau@...ux.dev> wrote:
>
> On 1/19/23 2:15 PM, Stanislav Fomichev wrote:
> > - create new netns
> > - create veth pair (veTX+veRX)
> > - setup AF_XDP socket for both interfaces
> > - attach bpf to veRX
> > - send packet via veTX
> > - verify the packet has expected metadata at veRX
> >
> > Cc: John Fastabend <john.fastabend@...il.com>
> > Cc: David Ahern <dsahern@...il.com>
> > Cc: Martin KaFai Lau <martin.lau@...ux.dev>
> > Cc: Jakub Kicinski <kuba@...nel.org>
> > Cc: Willem de Bruijn <willemb@...gle.com>
> > Cc: Jesper Dangaard Brouer <brouer@...hat.com>
> > Cc: Anatoly Burakov <anatoly.burakov@...el.com>
> > Cc: Alexander Lobakin <alexandr.lobakin@...el.com>
> > Cc: Magnus Karlsson <magnus.karlsson@...il.com>
> > Cc: Maryam Tahhan <mtahhan@...hat.com>
> > Cc: xdp-hints@...-project.net
> > Cc: netdev@...r.kernel.org
> > Signed-off-by: Stanislav Fomichev <sdf@...gle.com>
> > ---
> >   tools/testing/selftests/bpf/Makefile          |   2 +-
> >   .../selftests/bpf/prog_tests/xdp_metadata.c   | 410 ++++++++++++++++++
> The test cannot be run in s390x, so it needs to be in DENYLIST.s390x.

Ahh, good point, will add, thanks!