An implementation on RDMA communication between FPGA and NIC
L.K. Liu, Xiaoyun Ma, Ran Duan, Fei Liu, Di Li · 2023
With the increase of the amount of radio astronomical observation data, the radio astronomical signal processing technology needs more high-speed communication methods.RDMA technology can significantly reduce the communication cost of server and meet the need of high speed communication by transferring reliable transport protocol to hardware part processing in network card and supporting zero-copy network which bypassing kernel. [1]RoCE v2 protocol in RDMA is widely used in today's artificial intelligence and data center by encapsulating RDMA payload in UDP/IP datagram, which has the characteristics of being routable and low overhead. [2]