netdev - Re: [net-next v8 2/2] net: sched: support hash/classid/cpuid selecting tx queue

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Message-ID: <CAMDZJNX_DqQjSeHu3c8nEiOT3FrN3x7SQ1gL+g23iXATNddWJA@mail.gmail.com>
Date:   Thu, 27 Jan 2022 09:40:28 +0800
From:   Tonghao Zhang <xiangxia.m.yue@...il.com>
To:     Cong Wang <xiyou.wangcong@...il.com>
Cc:     Linux Kernel Network Developers <netdev@...r.kernel.org>,
        Jamal Hadi Salim <jhs@...atatu.com>,
        Jiri Pirko <jiri@...nulli.us>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Jonathan Lemon <jonathan.lemon@...il.com>,
        Eric Dumazet <edumazet@...gle.com>,
        Alexander Lobakin <alobakin@...me>,
        Paolo Abeni <pabeni@...hat.com>,
        Talal Ahmad <talalahmad@...gle.com>,
        Kevin Hao <haokexin@...il.com>,
        Ilias Apalodimas <ilias.apalodimas@...aro.org>,
        Kees Cook <keescook@...omium.org>,
        Kumar Kartikeya Dwivedi <memxor@...il.com>,
        Antoine Tenart <atenart@...nel.org>,
        Wei Wang <weiwan@...gle.com>, Arnd Bergmann <arnd@...db.de>
Subject: Re: [net-next v8 2/2] net: sched: support hash/classid/cpuid
 selecting tx queue

On Thu, Jan 27, 2022 at 9:23 AM Tonghao Zhang <xiangxia.m.yue@...il.com> wrote:
>
> On Thu, Jan 27, 2022 at 3:52 AM Cong Wang <xiyou.wangcong@...il.com> wrote:
> >
> > On Wed, Jan 26, 2022 at 6:32 AM <xiangxia.m.yue@...il.com> wrote:
> > >
> > > From: Tonghao Zhang <xiangxia.m.yue@...il.com>
> > >
> > > This patch allows user to select queue_mapping, range
> > > from A to B. And user can use skbhash, cgroup classid
> > > and cpuid to select Tx queues. Then we can load balance
> > > packets from A to B queue. The range is an unsigned 16bit
> > > value in decimal format.
> > >
> > > $ tc filter ... action skbedit queue_mapping skbhash A B
> > >
> > > "skbedit queue_mapping QUEUE_MAPPING" (from "man 8 tc-skbedit")
> > > is enhanced with flags:
> > > * SKBEDIT_F_TXQ_SKBHASH
> > > * SKBEDIT_F_TXQ_CLASSID
> > > * SKBEDIT_F_TXQ_CPUID
> >
> > NAK.
> >
> > Keeping resending the same non-sense can't help anything at all.
> >
> > You really should just use eBPF, with eBPF code you don't even need
> > to send anything to upstream, you can do whatever you want without
> I know ebpf can do more things. but we can let everyone to use ebpf in
can ->can't
> tc. For them, the
> tc command is more easy to use in data center. we have talked this in
> another thread.
> > arguing with anyone. It is a win-win. I have no idea why you don't even
> > get this after wasting so much time.
> >
> > Thanks.
>
>
>
> --
> Best regards, Tonghao



-- 
Best regards, Tonghao