User`s guide

Chapter XI. UDP Segmentation Offload and Pacing
Chelsio T5/T4 Unified Wire For Linux Page 175
2. Software/Driver Loading
The driver must be loaded by the root user. Any attempt to load the driver as a regular user will
fail.
Run the following commands to load the driver:
[root@host]# modprobe cxgb4
[root@host]# modprobe t4_tom
Though normally associated with the Chelsio TCP Offload engine, the t4_tom module is
required in order to allow for the proper redirection of UDP socket calls.