Re: support for 802.11n?

dmesg shows

iwm0: hw rev 0x210, fw ver 22.361476.0, address 9c:da:3e:e0:12:34
iwm0: 11a rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
iwm0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
iwm0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps

Trying to set it to 11n anyway:

$ ifconfig iwm0 mode 11n
ifconfig: unknown IEEE802.11 media mode: 11n

which is consistent with ifconfig(1) only mentioning 11a, 11b and 11g. OTOH

$ ifconfig iwm0 mode 11ac
ifconfig: SIOCSIFMEDIA: Invalid argument

11ac is a valid mode but not supported???

I tried a current NetBSD 10 a few days ago, but with the same results.

The device in question is an Intel Dual Band Wireless AC 3165 that supports 2.4 and 5 GHz and up to 802.11ac. I am running ESXi 6.7 on the hardware and attach the wifi device via PCI-pass-trough to a NetBSD 9.3 VM.

Do you have an example of a device actually working with higher speeds?

Thanks,

Joern

On Wed, Jul 26, 2023 at 1:07 PM Jeandre Kruger <jeandreckruger%gmail.com@localhost> wrote:

On Wed, 26 Jul 2023, 8:27 pm Jörn Clausen, <joernc%googlemail.com@localhost> wrote:
>
>
> What is the state of support for 802.11n in NetBSD?
>
> Between the NetBSD Guide, the Networking FAQ and the Wiki, it is a little bit hard to assess the current state of affairs with regard to 802.11n. The Wiki mentions "the new Wifi stack", but it is not entirley clear if this a current work in project or stale - and if this project would actually bring support for 11n.
>
> I would like to use iwm(4) with mode 11n. Is this on any roadmap in the foreseeable future?
>
> --
> Joern Clausen
> https://www.oe-files.de/photography/

Hi,

11n does work on both the old and new wifi stacks (the latter is in
progress) with at least some drivers. 11ng (2.4 GHz) works and I
think 11na (5 GHz) does also (at least I think it does on the new
stack). Have you tried it? ifconfig will report the current mode.

It looks like iwm(4) does support it.

Jeandre