tree e4e9bd46a55e0e88262a058978ea893c49b42cac
parent 520ccb81e3976c1c21d19d43265958faad0aee46
author Baochen Qiang <quic_bqiang@quicinc.com> 1709702114 +0200
committer Vegard Nossum <vegard.nossum@oracle.com> 1720426480 +0000

wifi: ath10k: poll service ready message before failing

[ Upstream commit e57b7d62a1b2f496caf0beba81cec3c90fad80d5 ]

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@gmail.com>
Tested-By: James Prestwood <prestwoj@gmail.com> # on QCA6174 hw3.2
Link: https://lore.kernel.org/linux-wireless/304ce305-fbe6-420e-ac2a-d61ae5e6ca1a@gmail.com/
Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://msgid.link/20240227030409.89702-1-quic_bqiang@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
(cherry picked from commit 54e3970b1848856e49f8cd08751dcb010ac3296b)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>