[PATCH v2] wifi: ath10k: poll service ready message before failing

[Jeff Johnson]

On 2/26/2024 7:04 PM, Baochen Qiang wrote:
> Currently host relies on CE interrupts to get notified that
> the service ready message is ready. This results in timeout
> issue if the interrupt is not fired, due to some unknown
> reasons. See below logs:
> 
> [76321.937866] ath10k_pci 0000:02:00.0: wmi service ready event not received
> ...
> [76322.016738] ath10k_pci 0000:02:00.0: Could not init core: -110
> 
> And finally it causes WLAN interface bring up failure.
> 
> Change to give it one more chance here by polling CE rings,
> before failing directly.
> 
> Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00157-QCARMSWPZ-1
> 
> Fixes: 5e3dd157d7e7 ("ath10k: mac80211 driver for Qualcomm Atheros 802.11ac CQA98xx devices")
> Reported-by: James Prestwood <prestwoj at gmail.com>
> Link: https://lore.kernel.org/linux-wireless/304ce305-fbe6-420e-ac2a-d61ae5e6ca1a@gmail.com/
> Signed-off-by: Baochen Qiang <quic_bqiang at quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson at quicinc.com>