netdev - Re: [PATCH net-next] igc: Lift TAPRIO schedule restriction

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Date:   Fri, 24 Jun 2022 16:56:23 -0700
From:   Vinicius Costa Gomes <vinicius.gomes@...el.com>
To:     Kurt Kanzenbach <kurt@...utronix.de>,
        Jesse Brandeburg <jesse.brandeburg@...el.com>,
        Tony Nguyen <anthony.l.nguyen@...el.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        intel-wired-lan@...ts.osuosl.org, netdev@...r.kernel.org,
        Kurt Kanzenbach <kurt@...utronix.de>
Subject: Re: [PATCH net-next] igc: Lift TAPRIO schedule restriction

Hi,

Kurt Kanzenbach <kurt@...utronix.de> writes:

> Add support for Qbv schedules where one queue stays open
> in consecutive entries. Currently that's not supported.
>
> Example schedule:
>
> |tc qdisc replace dev ${INTERFACE} handle 100 parent root taprio num_tc 3 \
> |   map 2 2 1 0 2 2 2 2 2 2 2 2 2 2 2 2 \
> |   queues 1@0 1@1 2@2 \
> |   base-time ${BASETIME} \
> |   sched-entry S 0x01 300000 \ # Stream High/Low
> |   sched-entry S 0x06 500000 \ # Management and Best Effort
> |   sched-entry S 0x04 200000 \ # Best Effort
> |   flags 0x02
>
> Signed-off-by: Kurt Kanzenbach <kurt@...utronix.de>
> ---

Finally did a few rounds of testing here, everything worked as expected:

Reviewed-by: Vinicius Costa Gomes <vinicius.gomes@...el.com>


Cheers,
-- 
Vinicius