linux-kernel - Re: [PATCH net-next v4] ptp: add Alibaba CIPU PTP clock driver

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Message-ID: <6a467d85-b524-4962-a3f4-bb2dab157ed7@linux.alibaba.com>
Date: Sun, 17 Aug 2025 11:01:23 +0800
From: Wen Gu <guwen@...ux.alibaba.com>
To: Andrew Lunn <andrew@...n.ch>
Cc: Jakub Kicinski <kuba@...nel.org>, richardcochran@...il.com,
 andrew+netdev@...n.ch, davem@...emloft.net, edumazet@...gle.com,
 pabeni@...hat.com, xuanzhuo@...ux.alibaba.com, dust.li@...ux.alibaba.com,
 netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
 Thomas Gleixner <tglx@...utronix.de>, David Woodhouse <dwmw2@...radead.org>
Subject: Re: [PATCH net-next v4] ptp: add Alibaba CIPU PTP clock driver



On 2025/8/16 23:37, Andrew Lunn wrote:
>> These sysfs are intended to provide diagnostics and informations.
> 
> Maybe they should be in debugfs if they are just diagnostics? You then
> don't need to document them, because they are not ABI.
> 
> 	Andrew

Hi Andrew,

Thank you for the suggestion.

But these sysfs aren't only for developer debugging, some cloud components
rely on the statistics to assess the health of PTP clocks or to perform
corresponding actions based on the reg values. So I prefer to use the stable
sysfs.

Thanks!