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Date: Thu, 11 Sep 2025 19:18:46 -0700
From: Jakub Kicinski <kuba@kernel.org>
To: Oleksij Rempel <o.rempel@pengutronix.de>
Cc: Andrew Lunn <andrew@lunn.ch>, "David S. Miller" <davem@davemloft.net>,
 Eric Dumazet <edumazet@google.com>, Paolo Abeni <pabeni@redhat.com>, Simon
 Horman <horms@kernel.org>, Donald Hunter <donald.hunter@gmail.com>,
 Jonathan Corbet <corbet@lwn.net>, Heiner Kallweit <hkallweit1@gmail.com>,
 Russell King <linux@armlinux.org.uk>, Kory Maincent
 <kory.maincent@bootlin.com>, Maxime Chevallier
 <maxime.chevallier@bootlin.com>, Nishanth Menon <nm@ti.com>,
 kernel@pengutronix.de, linux-kernel@vger.kernel.org,
 netdev@vger.kernel.org, UNGLinuxDriver@microchip.com,
 linux-doc@vger.kernel.org, Michal Kubecek <mkubecek@suse.cz>, Roan van Dijk
 <roan@protonic.nl>
Subject: Re: [PATCH net-next v5 0/5] ethtool: introduce PHY MSE diagnostics
 UAPI and drivers
Message-ID: <20250911191846.273bc7db@kernel.org>
In-Reply-To: <20250908124610.2937939-1-o.rempel@pengutronix.de>
References: <20250908124610.2937939-1-o.rempel@pengutronix.de>
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On Mon,  8 Sep 2025 14:46:05 +0200 Oleksij Rempel wrote:
>  In practice, such scenarios can only be investigated in
> fixed-link mode; here, MSE can provide an empirically estimated value
> indicating conditions under which autonegotiation would not succeed.

Does fixed-link make sense here? I thought fixed-link meant MAC-to-MAC
in most contexts