Multiple Qualcomm Hamilton cards on same host - none working

[david Atkins]

Hi,

Update on this, with an Intel CPU the first NIC is found but the second fails so slightly different behaviour, I'll update bug registered with logs

I note there was a patch with a comment:

" * support having multiple identical PCI devices (firmware needs to
  have ATH12K_FW_FEATURE_MULTI_QRTR_ID) "

would this address the issue? and is the updated firmware available?

In discussion with Qualcomm this week I think understood from them that the ath12k driver will not support Wi-Fi 7 in its current form, is this correct?

David

-----Original Message-----
From: Kalle Valo <kvalo at kernel.org> 
Sent: Wednesday, February 7, 2024 11:34 AM
To: david Atkins <david at 3adesign.co.uk>
Cc: ath12k at lists.infradead.org
Subject: Re: Multiple Qualcomm Hamilton cards on same host - none working

david Atkins <david at 3adesign.co.uk> writes:

> We need to run multiple wcn7850 (Hamilton) cards on the same host.
>
> A single wcn7850 works fine, more than one and all fail

Supporting multiple WCN7850 boards is a firmware limitation (and we need some extra ath12k patches). If you can please submit a report to bugzilla, easier to track that way:

https://wireless.wiki.kernel.org/en/users/drivers/ath12k/bugreport

> Logs from a working setup with a single card using Ubuntu 23.10.1 
> desktop install

BTW we don't support distro kernels as we don't know what patches they have. When reporting bugs to us please use vanilla kernel.org releases
from:

https://www.kernel.org/

And even better if you can use the latest and greatest from ath.git master branch:

https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git/

And do include the output from 'git describe --tags' when testing kernels so that we can exactly identify the release.

--
https://patchwork.kernel.org/project/linux-wireless/list/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches