CONFIG_NET_DSA_TAG_GSWIP (not configurable)

modulename: tag_gswip.ko

configname: CONFIG_NET_DSA_TAG_GSWIP

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>NET_DSA_TAG_GSWIP
In linux kernel since version 4.1 (release Date: 2015-06-21)