netdev - Re: [PATCH] [net] net: wwan: t7xx: Change PM_AUTOSUSPEND

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Message-ID: <20241031185150.6ef22ce0@kernel.org>
Date: Thu, 31 Oct 2024 18:51:50 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: wojackbb@...il.com
Cc: netdev@...r.kernel.org, chandrashekar.devegowda@...el.com,
 chiranjeevi.rapolu@...ux.intel.com, haijun.liu@...iatek.com,
 m.chetan.kumar@...ux.intel.com, ricardo.martinez@...ux.intel.com,
 loic.poulain@...aro.org, ryazanov.s.a@...il.com, johannes@...solutions.net,
 davem@...emloft.net, edumazet@...gle.com, pabeni@...hat.com,
 linux-arm-kernel@...ts.infradead.org,
 angelogioacchino.delregno@...labora.com,
 linux-mediatek@...ts.infradead.org, matthias.bgg@...il.com
Subject: Re: [PATCH] [net] net: wwan: t7xx: Change PM_AUTOSUSPEND_MS to 5000

On Mon, 28 Oct 2024 15:30:15 +0800 wojackbb@...il.com wrote:
> Because optimizing the power consumption of t7XX,
> change auto suspend time to 5000.
> 
> The Tests uses a script to loop through the power_state
> of t7XX.
> (for example: /sys/bus/pci/devices/0000\:72\:00.0/power_state)
> 
> * If Auto suspend is 20 seconds,
>   test script show power_state have 0~5% of the time was in D3 state
>   when host don't have data packet transmission.
> 
> * Changed auto suspend time to 5 seconds,
>   test script show power_state have 50%~80% of the time was in D3 state
>   when host don't have data packet transmission.

I'm going to drop this from PW while we wait for your reply to Sergey
If the patch is still good after answering his questions please update
the commit message and resend with a [net-next] tag (we use [net] to
designate fixes for current release and stable)