Re: [PATCH 10/10] wifi: ath12k: reset MLO global memory during recovery

Jeff Johnson
2025-01-13T19:25:55Z

On 1/8/2025 8:25 PM, Aditya Kumar Singh wrote:
> When operating with multiple devices grouped together, the firmware stores
> data related to the state machine of each partner device in the MLO global
> memory region. If the firmware crashes, it updates the state to 'crashed'.
> During recovery, this memory is shared with the firmware again, and upon
> detecting the 'crashed' state, it reasserts. This leads to a loop of
> firmware asserts and it never recovers.
>
> Hence to fix this issue, once all devices in the group have been asserted
> and powered down, reset the MLO global memory region.
>
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1
>
> Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>

Acked-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>