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Re: mac80211: AQM and block_tx

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On Donnerstag, 5. Juli 2018 10:47:11 CEST Sven Eckelmann wrote:
> Hi Toke,
> 
> we are currently testing DFS with ath10k and noticed that AQM seems to ignore 
> cfg80211_csa_settings->block_tx. Problem is now that the channel switch is 
> started on a detected radar
> 
>   echo 1 >/sys/kernel/debug/ieee80211/phy1/ath10k/dfs_simulate_radar
> 
> NL80211_ATTR_CH_SWITCH_BLOCK_TX is set for the channel switch by hostapd but 
> the AP still sends QoS data to the client.
> 
> Was there a fix for such a problem which I might have missed? I've just worked 
> around that by setting wake_tx_queue TO NULL in ath10k. This still must be 
> verified but at least I didn't see any packets anymore on a monitor interface.


Just as information, the ath10k Dakota devices went through DFS certification 
but the AQM had to be disabled. Otherwise we would have had problems with the 
FCC closing time.

Kind regards,
	Sven

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