# corundum/corundum

Open source FPGA-based NIC and platform for in-network compute

Repository: https://github.com/corundum/corundum
Canonical: https://ross.abutalabs.com/products/corundum
Homepage: https://corundum.io/
Language: Verilog
License: NOASSERTION
License Family: other
Topics: fpga, nic, in-network-compute, linux, networking
Last push: 2024-07-05T08:24:12+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 2606, "days_push": 789, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2438, forks 550 (observed 2026-08-28T04:06:51.510656+00:00)

## What it is
Corundum is an open-source FPGA-based network interface card (NIC) and platform for in-network compute, written in Verilog/SystemVerilog. It provides a high-performance 10G/25G/100G Ethernet datapath with PCIe DMA, thousands of hardware queues, PTP timestamping, TDMA scheduling, a Linux kernel driver, and an extensive simulation framework.

## Use cases
- build a custom FPGA-based network interface card
- implement in-network compute offload on an FPGA
- run high-precision TDMA packet scheduling with PTP timestamping
- develop and simulate a full PCIe-to-Ethernet NIC design
- experiment with programmable network hardware on supported FPGA boards
- write a custom Linux network driver for FPGA hardware

## When to choose
- you need an open-source, high-performance FPGA NIC with a mature Linux driver and simulation framework
- you want fine-grained control over transmit scheduling, queues, and PTP-based timing
- you are doing research on in-network compute or programmable networking
- your hardware is one of the many supported Xilinx or Intel FPGA boards

## When to avoid
- you need a simple software-only networking solution without FPGA hardware
- your FPGA board is not among the supported devices and porting effort is too high
- you need a turnkey commercial NIC with vendor support rather than an open research platform
- you are not comfortable working with RTL (Verilog/SystemVerilog) and FPGA toolchains

## Facets
- artifact type: library
- maturity: active
- function: networking, embedded, simulation, developer-tools
- domain: hardware, networking, embedded-systems, developer-tools
- platform: cpp, python
- tags: fpga, nic, verilog, in-network-compute, pcie, ethernet, ptp, tdma, linux-driver, rtl, linux

## Member repositories
- corundum/corundum (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:51.510656+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:30:47.319684+00:00, confidence not recorded.
  - readme: https://github.com/corundum/corundum (fetched 2026-08-28T04:06:51.510656+00:00, sha 2476462cb37f)
  - homepage: https://corundum.io/ (fetched 2026-08-29T10:12:12.764905+00:00, sha c48f414eccba)
- Data as of 2026-08-30T08:39:29.467469+00:00.