CONFIG_NET_DSA_MSCC_FELIX_DSA_LIB (not configurable)

modulename: mscc_felix_dsa_lib.ko

configname: CONFIG_NET_DSA_MSCC_FELIX_DSA_LIB

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Distributed Switch Architecture drivers
└─>NET_DSA_MSCC_FELIX_DSA_LIB
In linux kernel since version 6.3 (release Date: 2023-04-23)  
This is an umbrella module for all network switches that are
register-compatible with Ocelot and that perform I/O to their host
CPU through an NPI (Node Processor Interface) Ethernet port.
Its name comes from the first hardware chip to make use of it
(VSC9959), code named Felix.

source code: