TC index classifier

modulename: cls_tcindex.ko

configname: CONFIG_NET_CLS_TCINDEX

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>QoS and/or fair queueing
└─>TC index classifier
In linux kernel since version 2.6.12  
If you say Y here, you will be able to classify outgoing packets
according to the tc_index field of the skb. You will want this
feature if you want to implement Differentiated Services using
sch_dsmark. If unsure, say Y.

To compile this code as a module, choose M here: the
module will be called cls_tcindex.

source code: