MPTCP: Multipath TCP

modulename: mptcp.ko

configname: CONFIG_MPTCP

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>MPTCP: Multipath TCP
In linux kernel since version 5.1 (release Date: 2019-05-05)  
Multipath TCP (MPTCP) connections send and receive data over multiple
subflows in order to utilize multiple network paths. Each subflow
uses the TCP protocol, and TCP options carry header information for
MPTCP.

source code:
net/mptcp/