Tehuti TN40xx / TN4010 10 Gigabit Ethernet adapters
A family of 10 Gigabit Ethernet PCIe network cards built around Tehuti Networks' TN40xx/TN4010 controller silicon, typically paired with an Aquantia AQR105 PHY. The chipset shows up in retail and small-business adapters such as the Tehuti TN9310, D-Link DXE-810S, ASUS XG-C100F, and Edimax EN-9320, sold from the mid-2010s into 2025 as an affordable 10GbE upgrade for desktops and small servers.
recommendation
Worth keeping but documenting as a niche/legacy driver. The hardware is still sold new in 2025-2026 through brands like ASUS, Edimax, D-Link, and Kuroutoshikou, and the code saw real upstream and stable-tree activity in 2025 (including new PCI ID support and an MDIO/AQR105 PHY fix), so it is not abandonware. However, deployments are small and concentrated in the consumer/SMB 10GbE upgrade market, with no in-tree replacement covering the same silicon — removing it would strand remaining users, so the right move is to keep it while flagging that it serves a small audience.
repository signals
sources
- lore.kernel.org
The driver was still receiving upstream/stable traffic in 2025, including a patch adding PCI ID support for AQR105-based Tehuti TN4010 cards.
- lore.kernel.org
The driver also received a 2025 functional update to create an MDIO software node and attach the AQR105 PHY.
- kuroutoshikou.com
A retail product page describes a PCIe 10GbE board built on Tehuti TN4010 plus Aquantia/AQR105, indicating new-product availability around 2025-2026.
- edimax.com
Edimax still publishes a current product page for a supported 10GbE adapter family named in the kernel Kconfig, supporting continuing niche deployment.
- asus.com
ASUS still maintains a support page for the XG-C100F, another board explicitly named in the kernel Kconfig for this driver.
codex reasoning notes (technical)
Local source inspection via `rg`/`sed` showed this is the tn40xx/Tehuti 10GbE driver and Kconfig names supported boards (Tehuti TN9310, DLink DXE-810S, ASUS XG-C100F, Edimax EN-9320). Lore evidence came from `lore_file_timeline` on `drivers/net/ethernet/tehuti/tn40.c`, which showed substantial 2024-2025 patch activity and stable backports, so this is not abandonware. A `lore_regex` removal/deprecation scan timed out and the directory-level timeline returned no hits, so I found no concrete upstream removal series, but that absence is not fully exhaustive. Product/support URLs were obtained by web search; they suggest the hardware family is still sold or at least supported in 2025-2026, but only in niche desktop/server-upgrade markets. No natural in-tree replacement driver covers the same Tehuti silicon, so removal would strand remaining users; keep the driver, but annotate as legacy/niche rather than strategically important.