linux-kernel - Re: [net-next PATCH] octeontx2-af: Workaround SQM/PSE stalls by disabling sticky

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Message-Id: 
 <176974143835.3149010.13587073395074604681.git-patchwork-notify@kernel.org>
Date: Fri, 30 Jan 2026 02:50:38 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Geetha sowjanya <gakula@...vell.com>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, kuba@...nel.org,
 davem@...emloft.net, pabeni@...hat.com, edumazet@...gle.com,
 andrew+netdev@...n.ch, sgoutham@...vell.com, sbhatta@...vell.com,
 hkelam@...vell.com
Subject: Re: [net-next PATCH] octeontx2-af: Workaround SQM/PSE stalls by
 disabling
 sticky

Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Tue, 27 Jan 2026 18:21:47 +0530 you wrote:
> NIX SQ manager sticky mode is known to cause stalls when multiple SQs
> share an SMQ and transmit concurrently. Additionally, PSE may deadlock
> on transitions between sticky and non-sticky transmissions. There is
> also a credit drop issue observed when certain condition clocks are
> gated.
> 
> work around these hardware errata by:
> - Disabling SQM sticky operation:
>   - Clear TM6 (bit 15)
>   - Clear TM11 (bit 14)
> - Disabling sticky → non-sticky transition path that can deadlock PSE:
>   - Clear TM5 (bit 23)
> - Preventing credit drops by keeping the control-flow clock enabled:
>   - Set TM9 (bit 21)
> 
> [...]

Here is the summary with links:
  - [net-next] octeontx2-af: Workaround SQM/PSE stalls by disabling sticky
    https://git.kernel.org/netdev/net-next/c/70e9a5760abf

You are awesome, thank you!
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