netdev - Re: [patch net-next v2 0/9] net: sched: introduce chain templates support with offloading to mlxsw

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Message-ID: <CAM_iQpVzuX4P_C=APtWcTMGtuFZiS_ncAaJvtF6Chz19pG_oJg@mail.gmail.com>
Date:   Tue, 26 Jun 2018 17:04:31 -0700
From:   Cong Wang <xiyou.wangcong@...il.com>
To:     Jiri Pirko <jiri@...nulli.us>
Cc:     Linux Kernel Network Developers <netdev@...r.kernel.org>,
        David Miller <davem@...emloft.net>,
        Jamal Hadi Salim <jhs@...atatu.com>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Simon Horman <simon.horman@...ronome.com>,
        john.hurley@...ronome.com, David Ahern <dsahern@...il.com>,
        mlxsw@...lanox.com
Subject: Re: [patch net-next v2 0/9] net: sched: introduce chain templates
 support with offloading to mlxsw

On Tue, Jun 26, 2018 at 1:01 AM Jiri Pirko <jiri@...nulli.us> wrote:
> Create dummy device with clsact first:
> # ip link add type dummy
> # tc qdisc add dev dummy0 clsact
>
> There is no template assigned by default:
> # tc filter template show dev dummy0 ingress
>
> Add a template of type flower allowing to insert rules matching on last
> 2 bytes of destination mac address:
> # tc filter template add dev dummy0 ingress proto ip flower dst_mac 00:00:00:00:00:00/00:00:00:00:FF:FF

Now you are extending 'tc filter' command with a new
subcommand 'template', which looks weird.

Why not make it a new property of filter like you did for chain?
Like:

tc filter add dev dummy0 ingress proto ip template flower

which is much better IMHO.