wifi: ath10k: poll service ready message before failing
authorBaochen Qiang <quic_bqiang@quicinc.com>
Wed, 6 Mar 2024 05:15:14 +0000 (07:15 +0200)
committerKalle Valo <quic_kvalo@quicinc.com>
Fri, 8 Mar 2024 15:06:43 +0000 (17:06 +0200)
commite57b7d62a1b2f496caf0beba81cec3c90fad80d5
tree6068464625204b2f1a61d6775097b122f6367014
parentfa645e663165d69f05f95a0c3aa3b3d08f4fdeda
wifi: ath10k: poll service ready message before failing

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
drivers/net/wireless/ath/ath10k/wmi.c