ath11k: IPQ6018: support for 802.11s MESH

[Kalle Valo]

Stefan Zegenhagen <stefan.zegenhagen at azg-tech.com> writes:

> Dear Kalle, dear all,
>
> I can understand your concern regarding unknown patches. I've checked
> carefully that there's no OpenWRT patch on the ath11k driver that could
> possibly cause this behaviour. Most patches are vanilla kernel
> backports, others do harmless things like
>  - disabling coldboot calibration on IPQ6018
>  - setting FW memory mode via DTB
>  - tweaking QRTR instance IDs to allow multiple ath11k cards to be used

So there are changes to ath11k and mac80211?

> However, vanilla kernel still requires numerous patches to actually
> work on the Mango board. So it's difficult to test without any patches,
> since the IPQ6018 is a built-in AHB core and I cannot simply plug it
> somewhere else.

Sure, I understand that. But we have been bitten by distro changes so
many times in the past that we simply don't have time to support them.

> Could you please at least answer the question whether mesh is supposed
> to be working on IPQ6018 with vanilla kernel, which firmware version is
> required and whether it is required to enable raw mode data path? Is
> there some knowledge around? With ath10k, there was at least a WMI
> services file in debugfs and a feature list in the 'bin' file. Both are
> no longer available and I can no longer see anything about firmware
> capabilities.

I have not tested mesh mode myself with IPQ6018 but I did saw a report
claiming that at least this firmware has working mesh mode:

https://git.codelinaro.org/clo/ath-firmware/ath11k-firmware/-/tree/main/IPQ6018/hw1.0/2.6.0.1/WLAN.HK.2.6.0.1-01291-QCAHKSWPL_SILICONZ-1?ref_type=heads

Though that's not the most reliable source so I'm taking the report as a
grain of salt.

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