On Mon, 5 Jan 2026, Tassilo Philipp wrote:
Hi,
I thought I simply share this here, maybe it's useful to someone. I got an
intel wifi-6 ax200 m.2 slot card working on a HiFive Unmatched board w/ fbsd
15.0. It seems to work fine for me, so far, but it's in no way thoroughly
tested...
In order to build the if_iwlwifi kernel module I needed to disable ACPI in
the module's Makefile, and patch a source file to add some missing ACPI
related #ifdefs.
Also, some firmware files need to be built and installed via ports'
net/wifi-firmware-iwlwifi-kmod. Those firmware files can be built on any
platform - when building them on riscv64 themselves, a small patch needs to
be applied to net/wifi-firmware-kmod so riscv64 isn't excluded, though.
Anywho, to have a seemingly working iwlwifi(4) on my riscv64 setup, the
following steps were needed:
1) make sure src is installed
2) apply attached patch (which does the tweaks described above)
3) build/install kernel module from source:
cd /usr/src/sys/modules/iwlwifi
make
make install clean
4) install firmware port:
cd /usr/ports/net/wifi-firmware-iwlwifi-kmod
make install clean
5) kldload wlan_ccmp wlan_amrr if_iwlwifi
As said, thought that I share this here, happy that it's working, but no idea
or guarantee about stability and correctness.
There is a stack of 5 changes open for review as of last night:
https://reviews.freebsd.org/D54694
One is for the firmware in ports.
The others are (a) ACPI related for RISC-V so we get the headers on __riscv
as well so we do not have to change other driver code, and (b) module Makefile
related to enable ACPI based on DEV_ACPI and factor out the LinuxKPI wireless
drivers in their own block also compiling them on RISC-V. Turns out rtw89 is
broken requiring ACPI unconditionally (also on Linux it seems) so it's currently
disabled until I get to the point of fixing that in an upstreamable way.
Hope they can land soon.
Thanks a lot again for letting us know!
/bz
--
Bjoern A. Zeeb r15:7
