linux-kernel - Re: [PATCH net-next 2/2] net: pse-pd: pd692x0: Add sysfs interface for configuration save/reset

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Message-ID: <20250828151554.7be363a7@kernel.org>
Date: Thu, 28 Aug 2025 15:15:54 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Kory Maincent <kory.maincent@...tlin.com>
Cc: Andrew Lunn <andrew@...n.ch>, Oleksij Rempel <o.rempel@...gutronix.de>,
 Andrew Lunn <andrew+netdev@...n.ch>, "David S. Miller"
 <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Paolo Abeni
 <pabeni@...hat.com>, kernel@...gutronix.de, Dent Project
 <dentproject@...uxfoundation.org>, Thomas Petazzoni
 <thomas.petazzoni@...tlin.com>, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org, Maxime Chevallier
 <maxime.chevallier@...tlin.com>, Kyle Swenson <kyle.swenson@....tech>
Subject: Re: [PATCH net-next 2/2] net: pse-pd: pd692x0: Add sysfs interface
 for configuration save/reset

On Thu, 28 Aug 2025 13:29:01 +0200 Kory Maincent wrote:
> > Resetting would work either via devlink reload, or ethtool --reset,
> > don't think we even need any API addition there.  
> 
> Is there no way for NIC to reset their configuration except through ethtool
> reload?

Hm, on second thought I'm actually no longer sure if even ethtool or
devlink are right. I think the expectation may be that ethtool resets
the underlying HW but doesn't actually lose the configuration.