netdev - Re: [PATCH v4 net-next 08/15] net/sched: mqprio: allow offloading drivers to request queue count validation

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Message-ID: <Y9pyZgIt54tPGMPW@corigine.com>
Date:   Wed, 1 Feb 2023 15:08:38 +0100
From:   Simon Horman <simon.horman@...igine.com>
To:     Vladimir Oltean <vladimir.oltean@....com>
Cc:     netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Vinicius Costa Gomes <vinicius.gomes@...el.com>,
        Kurt Kanzenbach <kurt@...utronix.de>,
        Jacob Keller <jacob.e.keller@...el.com>,
        Jamal Hadi Salim <jhs@...atatu.com>,
        Cong Wang <xiyou.wangcong@...il.com>,
        Jiri Pirko <jiri@...nulli.us>
Subject: Re: [PATCH v4 net-next 08/15] net/sched: mqprio: allow offloading
 drivers to request queue count validation

On Mon, Jan 30, 2023 at 07:31:38PM +0200, Vladimir Oltean wrote:
> mqprio_parse_opt() proudly has a comment:
> 
> 	/* If hardware offload is requested we will leave it to the device
> 	 * to either populate the queue counts itself or to validate the
> 	 * provided queue counts.
> 	 */
> 
> Unfortunately some device drivers did not get this memo, and don't
> validate the queue counts.
> 
> Introduce a tc capability, and make mqprio query it.
> 
> Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
> Reviewed-by: Jacob Keller <jacob.e.keller@...el.com>

Reviewed-by: Simon Horman <simon.horman@...igine.com>