Re: [PATCH net-next v2 0/4] r8152: Add support for the RTL8159 10Gbit USB Ethernet chip

[Aleksander Jan Bajkowski <olek2@wp.pl>]

Hi Birger,
I ran a few tests on the RTL8157 and RTL8159. The 1/2.5/5/10G link
establishes correctly. The device also behaves normally under iperf load.
Everything is working fine so far.

On 29/04/2026 19:01, Birger Koblitz wrote:
> Add support for the RTL8159, which is a 10GBit USB-Ethernet adapter
> chip in the RTL815x family of chips.
>
> The RTL8159 re-uses the frame descriptor format and SRAM2 access introduced
> with the RTL8157 as well as most of the setup and PM logic of the RTL8157.
>
> The module was tested with a Lekuo DR59R11 USB-C 10GbE Ethernet Adapter:
> [ 2502.906947] usb 2-1: new SuperSpeed USB device number 3 using xhci_hcd
> [ 2502.927859] usb 2-1: New USB device found, idVendor=0bda, idProduct=815a, bcdDevice=30.00
> [ 2502.927867] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=7
> [ 2502.927871] usb 2-1: Product: USB 10/100/1G/2.5G/5G/10G LAN
> [ 2502.927873] usb 2-1: Manufacturer: Realtek
> [ 2502.927875] usb 2-1: SerialNumber: 000388C9B3B5XXXX
> [ 2503.063745] r8152-cfgselector 2-1: reset SuperSpeed USB device number 3 using xhci_hcd
> [ 2503.123876] r8152 2-1:1.0: Requesting firmware: rtl_nic/rtl8159-1.fw
> [ 2503.126267] r8152 2-1:1.0: PHY firmware installed 0 to be loaded: 20
> [ 2503.156265] r8152 2-1:1.0: load rtl8159-1 v1 2026/01/01 successfully
> [ 2503.270729] r8152 2-1:1.0 eth0: v1.12.13
> [ 2503.289349] r8152 2-1:1.0 enx88c9b3b5xxxx: renamed from eth0
> [ 2507.777055] r8152 2-1:1.0 enx88c9b3b5xxxx: carrier on
>
> The RTL8159 adapter was tested against an AQC107 PCIe-card supporting
> 10GBit/s and an RTL8157 5Gbit USB-Ethernet adapter supporting 5GBit/s for
> performance, link speed and EEE negotiation. Using USB3.2 Gen 2 (20GBit) with
> the RTL8159 USB adapter and running iperf3 against the AQC107 PCIe
> card resulted in 8.96 Gbits/sec transfer speed.
>
> The code is based on the out-of-tree r8152 driver published by Realtek under
> the GPL.
>
> The RTL8159 requires firmware for the PHY in order to achieve a 10GBit link
> speed. Without firmware, only 5GBit were achieved. The firmware can be
> extracted from the out-of-tree r8152 driver-code where it is stored in the
> ram17 u8-array. Code is added to use the existing firmware upload mechanism
> of the driver for the RTL8157/9 PHY firmware code. The firmware will be
> submitted separately to linux-firmware.
>
> Signed-off-by: Birger Koblitz <mail@birger-koblitz.de>
Tested-by: Aleksander Jan Bajkowski <olek2@wp.pl>
> ---
> Changes in v2:
> - Correct formatting of comments
> - Order case statement values correctly
> - Add error message when backup-restore fails
> - Correct commit message of support for firmware upload
> - Link to v1: https://lore.kernel.org/r/20260428-rtl8159_net_next-v1-0-52d03927b46f@birger-koblitz.de
>
> ---
> Birger Koblitz (4):
>        r8152: Add support for 10Gbit Link Speeds and EEE
>        r8152: Add support for the RTL8159 chip
>        r8152: Add irq mitigation for RTL8157/9
>        r8152: Add firmware upload capability for RTL8157/RTL8159
>
>   drivers/net/usb/r8152.c | 336 ++++++++++++++++++++++++++++++++++++++++++++++--
>   1 file changed, 324 insertions(+), 12 deletions(-)
> ---
> base-commit: 35c2c39832e569449b9192fa1afbbc4c66227af7
> change-id: 20260427-rtl8159_net_next-4f778a614fa7
>
> Best regards,