Arrow XRS7000X series switch in MDIO mode

modulename: xrs700x_mdio.ko

configname: CONFIG_NET_DSA_XRS700X_MDIO

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Distributed Switch Architecture drivers
└─>Arrow XRS7000X series switch in MDIO mode
In linux kernel since version 5.2 (release Date: 2019-07-07)  
Enable MDIO support for Arrow SpeedChips XRS7003/7004 gigabit Ethernet
switches.

source code:
drivers/net/dsa/xrs700x/xrs700x_mdio.c