netdev - Re: [PATCH net-next 2/2] net: fixed_phy: set is_gigabit

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Date:   Sun, 11 Aug 2019 17:40:01 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Marek Behún <marek.behun@....cz>
Cc:     netdev@...r.kernel.org, Heiner Kallweit <hkallweit1@...il.com>,
        Sebastian Reichel <sebastian.reichel@...labora.co.uk>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S . Miller" <davem@...emloft.net>
Subject: Re: [PATCH net-next 2/2] net: fixed_phy: set is_gigabit_capable
 member when needed

On Sun, Aug 11, 2019 at 05:08:12PM +0200, Marek Behún wrote:
> The fixed_phy driver does not set the phydev->is_gigabit_capable member
> when the fixed_phy is gigabit capable.

Neither does any other PHY driver. It should be possible to tell if a
PHY supports 1G by looking at register values. If this does not work
for fixed_link, it means we are missing something in the emulation.
That is what we should be fixing.

Also, this change has nothing to do the lp_advertise, what you
previously said the problem was. At the moment, i don't get the
feeling you have really dug all the way down and really understand the
root causes.

     Andrew