ath10k: Fix reported HT MCS rates with NSS > 1

[Kalle Valo]

Sven Eckelmann <sven.eckelmann at openmesh.com> wrote:
> The QCA4019 firmware 10.4-3.2.1-00050 reports only HT MCS rates between
> 0-9. But 802.11n MCS rates can be larger than that. For example a 2x2
> device can send with up to MCS 15.
> 
> The firmware encodes the higher MCS rates using the NSS field. The actual
> calculation is not documented by QCA but it seems like the NSS field can be
> mapped for HT rates to following MCS offsets:
> 
>  * NSS 1: 0
>  * NSS 2: 8
>  * NSS 3: 16
>  * NSS 4: 24
> 
> This offset therefore has to be added for HT rates before they are stored
> in the rate_info struct.
> 
> Fixes: cec17c382140 ("ath10k: add per peer htt tx stats support for 10.4")
> Signed-off-by: Sven Eckelmann <sven.eckelmann at openmesh.com>

Patch applied to ath-next branch of ath.git, thanks.

c1dd8016ae02 ath10k: fix reported HT MCS rates with NSS > 1

-- 
https://patchwork.kernel.org/patch/9721111/

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