netdev - phylib: Any PHY which reports link up during autoneg ?

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Date:   Thu, 16 Aug 2018 21:15:47 +0200
From:   Heiner Kallweit <hkallweit1@...il.com>
To:     Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: phylib: Any PHY which reports link up during autoneg ?

When reading through the state machine code in phy.c I wondered whether
there is any PHY which reports the link as up during autonegotiation.
(It's about handling PHY_AN in the state machine, once we know the link
is up we still check whether aneg was completed. Is this needed?)

At least the PHY's I have access to all report the link as down when
autonegotiating.
I checked also clause 22 of 802.3u, however found no clear definition
when a link should be considered up. There it's stated that it's
PHY-dependent.

Can you shed any light on this?

Thanks, Heiner