netdev - RE: [PATCH net-next v4 2/2] ixgbe: use mii

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Date:   Tue, 4 Dec 2018 16:59:21 +0000
From:   "Bowers, AndrewX" <andrewx.bowers@...el.com>
To:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>
Subject: RE: [PATCH net-next v4 2/2] ixgbe: use mii_bus to handle MII
 related ioctls

> -----Original Message-----
> From: Intel-wired-lan [mailto:intel-wired-lan-bounces@...osl.org] On
> Behalf Of Steve Douthit
> Sent: Monday, December 3, 2018 12:15 PM
> To: Kirsher, Jeffrey T <jeffrey.t.kirsher@...el.com>
> Cc: Andrew Lunn <andrew@...n.ch>; Florian Fainelli <f.fainelli@...il.com>;
> netdev@...r.kernel.org; intel-wired-lan@...ts.osuosl.org; David S. Miller
> <davem@...emloft.net>
> Subject: [Intel-wired-lan] [PATCH net-next v4 2/2] ixgbe: use mii_bus to
> handle MII related ioctls
> 
> Use the mii_bus callbacks to address the entire clause 22/45 address space.
> Enables userspace to poke switch registers instead of a single PHY address.
> 
> The ixgbe firmware may be polling PHYs in a way that is not protected by the
> mii_bus lock.  This isn't new behavior, but as Andrew Lunn pointed out there
> are more addresses available for conflicts.
> 
> Signed-off-by: Stephen Douthit <stephend@...icom-usa.com>
> Reviewed-by: Andrew Lunn <andrew@...n.ch>
> Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
> ---
>  drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)

Tested-by: Andrew Bowers <andrewx.bowers@...el.com>