drivers/infiniband/hw/qedr · keep

QLogic/Marvell FastLinQ 41000/45000 RDMA (RoCE/iWARP) NICs

RDMA support for Marvell (formerly QLogic) FastLinQ 41000 and 45000 series enterprise Ethernet adapters, which run at 10/25/40/50/100 Gigabit speeds and offer hardware-accelerated RoCE and iWARP for low-latency networking in storage fabrics, HPC, and virtualization deployments. The cards remain on Marvell's current product pages in 2025.

keep conf=0.83 last_sold=2026 deploy=low replacement=none subsystem=infiniband category=networking-ethernet

83%

recommendation

It should stay in the kernel because Marvell still actively sells the underlying FastLinQ 41000/45000 NICs as current products, and the driver continues to receive upstream maintenance, including patches landing on the linux-rdma list as recently as 2026. Deployment is niche compared to mainstream Ethernet, but there is no alternative in-tree driver for this hardware, so removing it would strand existing enterprise users.

repository signals

11 files

8,680 source lines

25 commits, 5y

+154 / −169 lines added / removed, 5y

19 authors, 5y

monthly commits · 2021-04-21 → 2026-04-21 · 25 total · active in 16/61 months

sources

lore.kernel.org
qedr still receives upstream RDMA-tree maintenance in 2026; not obviously abandoned or under removal.
marvell.com
Marvell still markets FastLinQ 41000 Ethernet NICs with Universal RDMA (RoCE/RoCEv2/iWARP), indicating ongoing new-hardware availability around 2025-2026.
marvell.com
Marvell still lists FastLinQ 45000 controllers supporting 40/50/100/25/10GbE and multiprotocol RDMA, matching qedr's hardware class.

codex reasoning notes (technical)

Kernel source grep via shell shows qedr is the QLogic/Marvell FastLinQ RoCE/iWARP RDMA driver (main.c advertises 40G/100G RoCE; code references both RoCE and iWARP). lore_activity on drivers/infiniband/hw/qedr/qedr.h returned a 2026 linux-rdma patch touching qedr, so there is still upstream attention; the provided static history also shows 22 substantive commits in 5y with 16 authors, which argues against deprecation. Vendor URLs were obtained by web search for Marvell FastLinQ 41000/45000 pages and show current product marketing, so hardware is still sold new in/after 2025. Deployment is low rather than none because this is a niche enterprise RDMA NIC family, but there is no natural in-tree replacement for the same hardware beyond keeping qedr.