Tag driver for Mediatek switches

modulename: tag_mtk.ko

configname: CONFIG_NET_DSA_TAG_MTK

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>Distributed Switch Architecture
└─>Tag driver for Mediatek switches
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Say Y or M if you want to enable support for tagging frames for
Mediatek switches.

source code: