RDMA CNI plugin is intended to be run as a chained CNI plugin (introduced in CNI Specifications v0.3.0). It ensures isolation of RDMA traffic from other workloads in the system by moving the associated RDMA interfaces of the provided network interface to the container's network namespace path.

The main use-case (for now...) is for containerized SR-IOV workloads orchestrated by Kubernetes that perform RDMA and wish to leverage network namespace isolation of RDMA devices introduced in linux kernel 5.3.0.