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

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Date:   Mon, 11 Jul 2022 08:14:39 +0300
From:   "naamax.meir" <naamax.meir@...ux.intel.com>
To:     Kurt Kanzenbach <kurt@...utronix.de>,
        Jesse Brandeburg <jesse.brandeburg@...el.com>,
        Tony Nguyen <anthony.l.nguyen@...el.com>,
        Vinicius Costa Gomes <vinicius.gomes@...el.com>
Cc:     netdev@...r.kernel.org, Eric Dumazet <edumazet@...gle.com>,
        intel-wired-lan@...ts.osuosl.org, Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        "David S. Miller" <davem@...emloft.net>
Subject: Re: [Intel-wired-lan] [PATCH net-next] igc: Lift TAPRIO schedule
 restriction

On 6/6/2022 12:27, Kurt Kanzenbach wrote:
> 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>
> ---
>   drivers/net/ethernet/intel/igc/igc_main.c | 23 +++++++++++++++++------
>   1 file changed, 17 insertions(+), 6 deletions(-)
Tested-by: Naama Meir <naamax.meir@...ux.intel.com>