netdev - Re: [PATCH] add virtual PHY for PHY-less devices

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Date:   Thu, 17 Sep 2020 15:16:30 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Sergej Bauer <sbauer@...ckbox.su>,
        "David S. Miller" <davem@...emloft.net>,
        Andrew Lunn <andrew@...n.ch>
Cc:     Jakub Kicinski <kuba@...nel.org>,
        Bryan Whitehead <bryan.whitehead@...rochip.com>,
        Microchip Linux Driver Support <UNGLinuxDriver@...rochip.com>,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Rob Herring <robh@...nel.org>, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org
Subject: Re: [PATCH] add virtual PHY for PHY-less devices



On 9/17/2020 2:40 PM, Sergej Bauer wrote:
> From: sbauer@...ckbox.su
> 
>      Here is a kernel related part of my work which was helps to develop brand
> new PHY device.
> 
>      It is migth be helpful for developers work with PHY-less lan743x
> (7431:0011 in my case). It's just a fake virtual PHY which can change speed of
> network card processing as a loopback device. Baud rate can be tuned with
> ethtool from command line or by means of SIOCSMIIREG ioctl. Duplex mode not
> configurable and it's allways DUPLEX_FULL.
> 
>      It also provides module parameter mii_regs for setting initial values of
> IEEE 802.3 Control Register.

You appear to have re-implemented the fixed PHY driver, please use that 
instead of rolling your own.
-- 
Florian