netdev - Re: [PATCH net-next v3 1/2] ixgbe: register a mdiobus

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Message-ID: <20181203190047.GP25748@lunn.ch>
Date:   Mon, 3 Dec 2018 20:00:47 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Steve Douthit <stephend@...icom-usa.com>
Cc:     Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
        "David S. Miller" <davem@...emloft.net>,
        "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Florian Fainelli <f.fainelli@...il.com>
Subject: Re: [PATCH net-next v3 1/2] ixgbe: register a mdiobus

On Mon, Dec 03, 2018 at 06:55:22PM +0000, Steve Douthit wrote:
> Most dsa devices expect a 'struct mii_bus' pointer to talk to switches
> via the MII interface.
> 
> While this works for dsa devices, it will not work safely with Linux
> PHYs in all configurations since the firmware of the ixgbe device may
> be polling some PHY addresses in the background.
> 
> Signed-off-by: Stephen Douthit <stephend@...icom-usa.com>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew