netdev - Re: [PATCH bpf-next v4 08/19] bpf: net_sched: Support implementation of Qdisc

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Message-ID: <Z89CvCM7B/Lvkq5K@pop-os.localdomain>
Date: Mon, 10 Mar 2025 12:51:24 -0700
From: Cong Wang <xiyou.wangcong@...il.com>
To: Amery Hung <ameryhung@...il.com>
Cc: netdev@...r.kernel.org, bpf@...r.kernel.org, daniel@...earbox.net,
	andrii@...nel.org, alexei.starovoitov@...il.com,
	martin.lau@...nel.org, kuba@...nel.org, edumazet@...gle.com,
	cong.wang@...edance.com, jhs@...atatu.com, sinquersw@...il.com,
	toke@...hat.com, jiri@...nulli.us, stfomichev@...il.com,
	ekarani.silvestre@....ufcg.edu.br, yangpeihao@...u.edu.cn,
	yepeilin.cs@...il.com, kernel-team@...a.com
Subject: Re: [PATCH bpf-next v4 08/19] bpf: net_sched: Support implementation
 of Qdisc_ops in bpf

On Mon, Feb 10, 2025 at 09:43:22AM -0800, Amery Hung wrote:
> From: Amery Hung <amery.hung@...edance.com>
> 
> Enable users to implement a classless qdisc using bpf. The last few
> patches in this series has prepared struct_ops to support core operators
> in Qdisc_ops. The recent advancement in bpf such as allocated
> objects, bpf list and bpf rbtree has also provided powerful and flexible
> building blocks to realize sophisticated scheduling algorithms. Therefore,
> in this patch, we start allowing qdisc to be implemented using bpf
> struct_ops. Users can implement Qdisc_ops.{enqueue, dequeue, init, reset,
> and .destroy in Qdisc_ops in bpf and register the qdisc dynamically into
> the kernel.
> 
> Co-developed-by: Cong Wang <cong.wang@...edance.com>
> Signed-off-by: Cong Wang <cong.wang@...edance.com>
> Signed-off-by: Amery Hung <amery.hung@...edance.com>

Thanks for keeping updating this, Amery! It should be very close to be
merged. So acking this as TC maintainer:

Acked-by: Cong Wang <xiyou.wangcong@...il.com>

I can't wait for trying it by myself too since it is now completely
different with my original code. ;-)

Regards,
Cong