netdev - Re: [PATCH bpf-next] selftests, bpf: remove AF

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Date:   Fri, 1 Jul 2022 18:34:01 +0530
From:   Srivats P <pstavirs@...il.com>
To:     Magnus Karlsson <magnus.karlsson@...il.com>
Cc:     Jesper Dangaard Brouer <jbrouer@...hat.com>,
        "Karlsson, Magnus" <magnus.karlsson@...el.com>,
        Björn Töpel <bjorn@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Network Development <netdev@...r.kernel.org>,
        "Fijalkowski, Maciej" <maciej.fijalkowski@...el.com>,
        Jonathan Lemon <jonathan.lemon@...il.com>,
        Andrii Nakryiko <andrii@...nel.org>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        Toke Høiland-Jørgensen <toke@...hat.com>,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        bpf <bpf@...r.kernel.org>, Xdp <xdp-newbies@...r.kernel.org>
Subject: Re: [PATCH bpf-next] selftests, bpf: remove AF_XDP samples

> I can push xsk_fwd to BPF-examples. Though I do think that xdpsock has
> become way too big to serve as a sample. It slowly turned into a catch
> all demonstrating every single feature of AF_XDP. We need a minimal
> example and then likely other samples for other features that should
> be demoed. So I suggest that xdpsock dies here and we start over with
> something minimal and use xsk_fwd for the forwarding and mempool
> example.

As an AF_XDP user, I want to say that I often refer to xdpsock to
understand how to use a feature - it is very useful especially when
there's a lack of good AF_XDP documentation.

Srivats