[PATCH] wifi: ath11k: stop tx queues immediately upon firmware exit

[Kalle Valo]

Aditya Kumar Singh <quic_adisi at quicinc.com> wrote:

> Currently, recovery flag is set immediately upon firmware
> exit but tx queues are stopped once firmware arrives back
> and is ready which is during ath11k_core_restart. Once
> ieee80211 hw restart is completed, tx queues are resumed.
> If during the time delta between firmware exit and firmware
> ready, mac80211 send packets, currently ath11k will drop it
> since recovery flag will be set. But warning prints will
> come -
>   "ath11k c000000.wifi: failed to transmit frame -108"
> 
> If more tx packets are there, this could lead to flooding
> of above print.
> 
> However, actually tx queues should be stopped immediately
> when firmware leaves. This will prevent packets to get
> dropped when firmware is recovering.
> 
> Add fix to stop tx queues immediately after firmware exit.
> 
> Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1
> 
> Signed-off-by: Aditya Kumar Singh <quic_adisi at quicinc.com>
> Signed-off-by: Kalle Valo <quic_kvalo at quicinc.com>

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

81e60b2dfb27 wifi: ath11k: stop tx queues immediately upon firmware exit

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20220923170235.18873-1-quic_adisi@quicinc.com/

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