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Date:   Wed, 18 Dec 2019 15:05:13 -0800
From:   Vinicius Costa Gomes <vinicius.gomes@...el.com>
To:     Jose Abreu <Jose.Abreu@...opsys.com>, netdev@...r.kernel.org
Cc:     Joao Pinto <Joao.Pinto@...opsys.com>,
        Jose Abreu <Jose.Abreu@...opsys.com>,
        David Ahern <dsahern@...il.com>
Subject: Re: [PATCH iproute2-next] taprio: Add support for the SetAndHold and SetAndRelease commands

Hi Jose,

Jose Abreu <Jose.Abreu@...opsys.com> writes:

> Although this is already in kernel, currently the tool does not support
> them. We need these commands for full TSN features which are currently
> supported in Synopsys IPs such as QoS and XGMAC3.
>
> Signed-off-by: Jose Abreu <Jose.Abreu@...opsys.com>

This patch looks good in itself. 

However, I feel that this is incomplete. At least the way I understand
things, without specifying which traffic classes are going to be
preemptible (or it's dual concept, express), I don't see how this is
going to be used in practice. Or does the hardware have a default
configuration, that all traffic classes are preemptible, for example.

What am I missing here?


Cheers,
--
Vinicius

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