netdev - Re: [PATCH net-next v3 0/5] TC: refactor act

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Message-ID: <168de66002c665d817e7ad5f3137a7db42b0bec9.camel@redhat.com>
Date:   Wed, 25 Jul 2018 14:07:15 +0200
From:   Paolo Abeni <pabeni@...hat.com>
To:     Jiri Pirko <jiri@...nulli.us>
Cc:     netdev@...r.kernel.org, Jamal Hadi Salim <jhs@...atatu.com>,
        Cong Wang <xiyou.wangcong@...il.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Marcelo Ricardo Leitner <marcelo.leitner@...il.com>,
        Eyal Birger <eyal.birger@...il.com>,
        "David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH net-next v3 0/5] TC: refactor act_mirred packets
 re-injection

Hi,

On Wed, 2018-07-25 at 13:53 +0200, Jiri Pirko wrote:
> Could you please send the userspace iproute2 patch and list some
> examples of usage along with the next patchset version?

There are no iproute2 patches, as TC_ACT_REINJECT is not accessible
from user-space: act_mirred will use such value when possible.

User-space can have any notion of the above only via the perf tool
and/or performances tests ;)

An use case is the OVS TC S/W datapath. openvswitch alreday leverage
this when configured with:

other_config:hw-offload=true
other_config:tc-policy=none

> Also, I would like you to do selftest script to test this and have it as
> a part of this patchset.

As said, there is no user-space change. AFAICS the current act_mirred
self tests already cover this. Do you have other things in mind?

Cheers,

Paolo