linux-drivers/
drivers/infiniband/hw/hns

HiSilicon Hip08 RoCE RDMA controllers (Kunpeng 920)

RDMA over Converged Ethernet engines built into HiSilicon's Hip08-generation network controllers, which ship as part of Huawei's Kunpeng 920 Arm server platform and TaiShan 200 systems. They provide low-latency, high-throughput networking (up to 25/100 GbE) for datacenter workloads such as storage fabrics, HPC, and AI clusters.

keep conf=0.87 deploy=low replacement=none subsystem=infiniband category=networking-other
87%

recommendation

It should stay because the hardware is still being sold and certified in Huawei's Kunpeng 920 and TaiShan 200 servers as of 2025, and the code is actively maintained upstream with patches landing as recently as April 2026. Deployments are niche compared to mainstream RDMA NICs from Mellanox or Broadcom, but no other driver covers this silicon, so removal would strand real Arm-server customers.

repository signals

25 files
20,233 source lines
304 commits, 5y
+8,809 / −12,325 lines added / removed, 5y
41 authors, 5y
monthly commits · 2021-04-21 → 2026-04-21 · 304 total · active in 51/61 months
2021 2022 2023 2024 2025 2026 2021-04: 1 commit · +1 −2 2021-05: 14 commits · +650 −711 2021-06: 31 commits · +979 −1,628 2021-07: 3 commits · +15 −33 2021-08: 20 commits · +200 −280 2021-09: 4 commits · +34 −30 2021-10: 4 commits · +150 −40 2021-11: 10 commits · +58 −60 2021-12: 6 commits · +197 −6,278 2022-01: 1 commit · +3 −10 2022-02: 0 commits · +0 −0 2022-03: 10 commits · +691 −362 2022-04: 8 commits · +48 −50 2022-05: 2 commits · +261 −524 2022-06: 0 commits · +0 −0 2022-07: 5 commits · +232 −40 2022-08: 11 commits · +307 −155 2022-09: 13 commits · +98 −122 2022-10: 5 commits · +10 −21 2022-11: 9 commits · +300 −84 2022-12: 4 commits · +53 −161 2023-01: 0 commits · +0 −0 2023-02: 0 commits · +0 −0 2023-03: 1 commit · +56 −164 2023-04: 0 commits · +0 −0 2023-05: 6 commits · +99 −46 2023-06: 0 commits · +0 −0 2023-07: 4 commits · +15 −92 2023-08: 7 commits · +196 −88 2023-09: 2 commits · +187 −11 2023-10: 8 commits · +52 −32 2023-11: 3 commits · +321 −46 2023-12: 5 commits · +25 −6 2024-01: 6 commits · +363 −313 2024-02: 1 commit · +19 −14 2024-03: 3 commits · +232 −44 2024-04: 11 commits · +140 −88 2024-05: 0 commits · +0 −0 2024-06: 1 commit · +3 −2 2024-07: 8 commits · +127 −61 2024-08: 0 commits · +0 −0 2024-09: 10 commits · +57 −37 2024-10: 5 commits · +178 −117 2024-11: 4 commits · +94 −48 2024-12: 4 commits · +38 −21 2025-01: 1 commit · +8 −21 2025-02: 1 commit · +50 −16 2025-03: 9 commits · +37 −19 2025-04: 7 commits · +256 −5 2025-05: 2 commits · +10 −6 2025-06: 2 commits · +6 −196 2025-07: 8 commits · +98 −60 2025-08: 1 commit · +1 −1 2025-09: 1 commit · +4 −4 2025-10: 4 commits · +71 −9 2025-11: 8 commits · +1,434 −57 2025-12: 1 commit · +60 −12 2026-01: 5 commits · +219 −28 2026-02: 4 commits · +66 −70 2026-03: 0 commits · +0 −0 2026-04: 0 commits · +0 −0

sources

  1. lore.kernel.org

    The driver is still seeing upstream changes in 2026; this April 6, 2026 linux-rdma patch touched drivers/infiniband/hw/hns/hns_roce_main.c.

  2. hisilicon.com

    HiSilicon still publishes the Kunpeng 920 product page, describing it as an Arm server CPU with 100G-capable datacenter I/O.

  3. support.huawei.com

    A Huawei TaiShan 200 server technical-specifications page published about 8 months before 2026-04-25 still lists multiple Kunpeng 920 processor SKUs; only one SKU is marked EOM, implying the platform family remained marketed into 2025.

  4. ubuntu.com

    Ubuntu certification for Kunpeng 920 lists Huawei HNS GE/10GE/25GE RDMA network controllers, showing real deployed systems using this RDMA hardware family.

codex reasoning notes (technical)

Real driver, not an early-exit case. Local tree inspection via shell showed Kconfig names this as 'Hisilicon Hip08 Family RoCE support' and the module as the Hip08 RoCE driver. Upstream activity was checked with lore_file_timeline on hns_roce_main.c; it shows steady 2021-2026 traffic and a newest touch on 2026-04-06 (source 1), which strongly argues against deprecation. Deployment evidence came from web search/open on official HiSilicon and Huawei support pages plus Ubuntu certification (sources 2-4). Those indicate Kunpeng 920/TaiShan systems and matching HNS RDMA controllers remained present in marketed or certified systems into 2025, but this is a niche enterprise/server platform rather than broad commodity hardware, so deployments_today is low. No natural replacement driver covers the same hardware; other RDMA drivers serve different NICs.