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

From: Florian Fainelli
Date: Thu Sep 17 2020 - 18:16:36 EST

On 9/17/2020 2:40 PM, Sergej Bauer wrote:
From: sbauer@xxxxxxxxxxx

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.