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Message-ID: <Y/OWSjQ0m65fF5dk@lunn.ch>
Date: Mon, 20 Feb 2023 16:48:26 +0100
From: Andrew Lunn <andrew@...n.ch>
To: Oleksij Rempel <o.rempel@...gutronix.de>
Cc: "Russell King (Oracle)" <linux@...linux.org.uk>,
Heiner Kallweit <hkallweit1@...il.com>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>, kernel@...gutronix.de,
linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH net-next v1 3/4] net: phy: do not force EEE support
> Hm.. ethtool do not provide enough information about expected behavior.
> Here is my expectation:
> - "ethtool --set-eee lan1 eee on" should enable EEE if it is disabled.
> - "ethtool --set-eee lan1 advertise 0x10" should change set of
> advertised modes.
> - a sequence of "..advertise 0x10", "..eee on", "eee off" should restore
> preconfigured advertise modes. advertising_eee instead of
> supported_eee.
I agree ethtool is not very well documented. However, i would follow
what -s does. You can pass link modes you want to advertise, and you
can turn auto-neg on and off. Does turning auto-neg off and on again
reset the links modes which are advertised? I don't actually know, but
i think the behaviour should be consistent for link modes and EEE
modes.
Andrew
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