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Re: [PATCH] ath10k: support bus and device specific API 1 BDF selection

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Robert Marko <robimarko@xxxxxxxxx> wrote:

> Some ath10k IPQ40xx devices like the MikroTik hAP ac2 and ac3 require the
> BDF-s to be extracted from the device storage instead of shipping packaged
> API 2 BDF-s.
> 
> This is required as MikroTik has started shipping boards that require BDF-s
> to be updated, as otherwise their WLAN performance really suffers.
> This is however impossible as the devices that require this are release
> under the same revision and its not possible to differentiate them from
> devices using the older BDF-s.
> 
> In OpenWrt we are extracting the calibration data during runtime and we are
> able to extract the BDF-s in the same manner, however we cannot package the
> BDF-s to API 2 format on the fly and can only use API 1 to provide BDF-s on
> the fly.
> This is an issue as the ath10k driver explicitly looks only for the
> board.bin file and not for something like board-bus-device.bin like it does
> for pre-cal data.
> Due to this we have no way of providing correct BDF-s on the fly, so lets
> extend the ath10k driver to first look for BDF-s in the
> board-bus-device.bin format, for example: board-ahb-a800000.wifi.bin
> If that fails, look for the default board file name as defined previously.
> 
> Signed-off-by: Robert Marko <robimarko@xxxxxxxxx>
> Signed-off-by: Kalle Valo <quic_kvalo@xxxxxxxxxxx>

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

f2a7064a78b2 ath10k: support bus and device specific API 1 BDF selection

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20211009221711.2315352-1-robimarko@xxxxxxxxx/

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




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