netdev - Re: [PATCH bpf-next v5 12/13] selftests/bpf: Add a bpf fq qdisc to selftest

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Message-ID: <CAADnVQKrndZ25SuRj-Ofv8tA50XjTwVVyQWmasN94LT9zeV7JQ@mail.gmail.com>
Date: Fri, 14 Mar 2025 13:35:16 -0700
From: Alexei Starovoitov <alexei.starovoitov@...il.com>
To: Amery Hung <ameryhung@...il.com>
Cc: Network Development <netdev@...r.kernel.org>, bpf <bpf@...r.kernel.org>, 
	Daniel Borkmann <daniel@...earbox.net>, Andrii Nakryiko <andrii@...nel.org>, 
	Martin KaFai Lau <martin.lau@...nel.org>, Jakub Kicinski <kuba@...nel.org>, 
	Eric Dumazet <edumazet@...gle.com>, Cong Wang <xiyou.wangcong@...il.com>, 
	Jamal Hadi Salim <jhs@...atatu.com>, Kui-Feng Lee <sinquersw@...il.com>, 
	Toke Høiland-Jørgensen <toke@...hat.com>, 
	Jiri Pirko <jiri@...nulli.us>, Stanislav Fomichev <stfomichev@...il.com>, 
	ekarani.silvestre@....ufcg.edu.br, yangpeihao@...u.edu.cn, 
	Peilin Ye <yepeilin.cs@...il.com>, Kernel Team <kernel-team@...a.com>
Subject: Re: [PATCH bpf-next v5 12/13] selftests/bpf: Add a bpf fq qdisc to selftest

On Thu, Mar 13, 2025 at 12:03 PM Amery Hung <ameryhung@...il.com> wrote:
>
> From: Amery Hung <amery.hung@...edance.com>
>
> This test implements a more sophisticated qdisc using bpf. The bpf fair-
> queueing (fq) qdisc gives each flow an equal chance to transmit data. It
> also respects the timestamp of skb for rate limiting.
>
> Signed-off-by: Amery Hung <amery.hung@...edance.com>
> ---
>  .../selftests/bpf/prog_tests/bpf_qdisc.c      |  24 +
>  .../selftests/bpf/progs/bpf_qdisc_fq.c        | 718 ++++++++++++++++++

On the look of it, it's a pretty functional qdisc.
Since bpftool supports loading st_ops,
please list commands bpftool and tc the one can enter
to use this qdisc without running selftests.

Probably at the comment section at the top of bpf_qdisc_fq.c

It also needs SPDX and copyright.

pw-bot: cr