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OpenRDMA-An Open Source FPGA-Based 400G RDMA-Like SmartNIC

OpenRDMA-An Open Source FPGA-Based 400G RDMA-Like SmartNIC

May 23, 2026 Hardware & IoT
fpga networking open source rdma smartnic

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OpenRDMA-An Open Source FPGA-Based 400G RDMA-Like SmartNIC

About

We’ve been building an open-source FPGA-based 400G RDMA-like SmartNIC called OpenRDMA.The project includes RTL, drivers, and the FPGA data path implementation. Current hardware throughput has reached around 200Gbps so far.One interesting aspect has been verification: we’ve been using LLM-generated cocotb testbenches quite extensively. AI is still weak at SystemVerilog, but surprisingly useful for Python-based cocotb verification workflows.The entire stack is open-source: github.com/open-rdma/open-rdmaWould love feedback from people working on FPGA networking, RDMA, SmartNICs, or high-performance infrastructure.

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