netdev - Re: [net-next Patch v5 4/6] octeontx2-pf: Refactor schedular queue alloc/free calls

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Message-ID: <ZCL9a5kXqMCx7n7L@corigine.com>
Date:   Tue, 28 Mar 2023 16:44:59 +0200
From:   Simon Horman <simon.horman@...igine.com>
To:     Hariprasad Kelam <hkelam@...vell.com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        kuba@...nel.org, davem@...emloft.net,
        willemdebruijn.kernel@...il.com, andrew@...n.ch,
        sgoutham@...vell.com, lcherian@...vell.com, gakula@...vell.com,
        jerinj@...vell.com, sbhatta@...vell.com, naveenm@...vel.com,
        edumazet@...gle.com, pabeni@...hat.com, jhs@...atatu.com,
        xiyou.wangcong@...il.com, jiri@...nulli.us, maxtram95@...il.com
Subject: Re: [net-next Patch v5 4/6] octeontx2-pf: Refactor schedular queue
 alloc/free calls

On Sun, Mar 26, 2023 at 11:42:43PM +0530, Hariprasad Kelam wrote:
> Multiple transmit scheduler queues can be configured at different
> levels to support traffic shaping and scheduling. But on txschq free
> requests, the transmit schedular config in hardware is not getting
> reset. This patch adds support to reset the stale config.
> 
> The txschq alloc response handler updates the default txschq
> array which is used to configure the transmit packet path from
> SMQ to TL2 levels. However, for new features such as QoS offload
> that requires it's own txschq queues, this handler is still
> invoked and results in undefined behavior. The code now handles
> txschq response in the mbox caller function.
> 
> Signed-off-by: Hariprasad Kelam <hkelam@...vell.com>
> Signed-off-by: Naveen Mamindlapalli <naveenm@...vell.com>
> Signed-off-by: Sunil Kovvuri Goutham <sgoutham@...vell.com>

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