Large Receive Offload (ipv4/tcp)

modulename: inet_lro.ko

configname: CONFIG_INET_LRO

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>Large Receive Offload (ipv4/tcp)
In linux kernel since version 2.6.24 (release Date: 2008-01-24)  
Support for Large Receive Offload (ipv4/tcp).

If unsure, say Y.

source code:
net/ipv4/inet_lro.c