netdev - Re: [PATCH net-next 1/2] net: phy: don't stop state machine in case of MDIO error

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Message-ID: <20181216153019.GA25181@lunn.ch>
Date:   Sun, 16 Dec 2018 16:30:19 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Heiner Kallweit <hkallweit1@...il.com>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        David Miller <davem@...emloft.net>,
        Fugang Duan <fugang.duan@....com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next 1/2] net: phy: don't stop state machine in case
 of MDIO error

> After checking the fec history it seems that at the time this
> workaround was added as part of phylib support (8 years ago),
> the MDIO access timeout value was too low and therefore sometimes
> MDIO access failed. Later timeout was set to a higher value and
> driver switched to an event-driven mechanism to signal end of
> MDIO access. So it should be safe to remove the workaround.

Hi Heiner

Thanks for digging into the details.

> 
> One issue with phy_error() is that it silently stops the PHY.
> We should at least add a phydev_err() to let the user know.

Yes, that is a good idea.

     Andrew