[v2,2/3] ath10k: Configure rxnss_override for 10.4 firmware.

[Kalle Valo]

Sven Eckelmann <sven.eckelmann at openmesh.com> wrote:

> QCA9984 hardware can do 4x4 at 80Mhz, but only 2x2 at 160Mhz.
> 
> First, report this to user-space by setting the max-tx-speed
> and max-rx-speed vht capabilities.
> 
> Second, if the peer rx-speed is configured, and if we
> are in 160 or 80+80 mode, and the peer rx-speed matches
> the max speed for 2x2 or 1x1 at 160Mhz (long guard interval),
> then use that info to set the peer_bw_rxnss_override appropriately.
> 
> Without this, a 9984 firmware will not use 2x2 ratesets when
> transmitting to peer (it will be stuck at 1x1), because
> the firmware would not have configured the rxnss_override.
> 
> This could use some testing....
> 
> Signed-off-by: Ben Greear <greearb at candelatech.com>
> [sven.eckelmann at openmesh.com: rebase, cleanup, drop 160Mhz workaround cleanup]
> Signed-off-by: Sven Eckelmann <sven.eckelmann at openmesh.com>
> Signed-off-by: Kalle Valo <kvalo at qca.qualcomm.com>

This one had warnings, fixed in pending branch:

drivers/net/wireless/ath/ath10k/mac.c:4436:52: warning: incorrect type in assignment (different base types)
drivers/net/wireless/ath/ath10k/mac.c:4436:52:    expected restricted __le16 [assigned] [usertype] rx_highest
drivers/net/wireless/ath/ath10k/mac.c:4436:52:    got int
drivers/net/wireless/ath/ath10k/mac.c:4437:52: warning: incorrect type in assignment (different base types)
drivers/net/wireless/ath/ath10k/mac.c:4437:52:    expected restricted __le16 [assigned] [usertype] tx_highest
drivers/net/wireless/ath/ath10k/mac.c:4437:52:    got int

-- 
https://patchwork.kernel.org/patch/9778087/

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