Ocelot External Ethernet switch support

modulename: mscc_ocelot_ext.ko

configname: CONFIG_NET_DSA_MSCC_OCELOT_EXT

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Distributed Switch Architecture drivers
└─>Ocelot External Ethernet switch support
In linux kernel since version 6.3 (release Date: 2023-04-23)  
This driver supports the VSC7511, VSC7512, VSC7513 and VSC7514 chips
when controlled through SPI.

The Ocelot switch family is a set of multi-port networking chips. All
of these chips have the ability to be controlled externally through
SPI or PCIe interfaces.

Say "Y" here to enable external control to these chips.

source code: