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c42b27336e
When running 'iw dev wlan0 survey dump' the values for the channel busy
time have the same sequence across bands. This is caused by indexing
into the ath12k survey array using a band-local index rather than the
global index passed by mac80211. This results in surveys for 5 GHz and 6
GHz channels returning values from 2.4 GHz slots, making the survey
unusable on those bands. Further, there are redundant survey slots for
multi-radio/single-phy instances.
Fix by moving the survey data into ath12k_hw so multiple radios under a
single wiphy share one table, and index into it using the global
mac80211 index. A new spinlock in ath12k_hw serialises access to the
survey array, which is now shared across all radios under a single hw.
Band busy-times Before this fix:
2.4 GHz: 9, 2, 2, 2, 4, 2, 10, 16, 4, 12, 5
5 GHz: 9, 2, 2, 2, 4, 2, 10, 16, 4, 12, 5
6 GHz: 9, 2, 2, 2, 4, 2, 10, 16, 4, 12, 5
After this fix, times are independent:
2.4 GHz: 23, 5, 5, 12, 2, 12, 26, 5, 3, 1, 27
5 GHz: 30, 40, 29, 27, 118, 118, 112, 120, 11, 11, 11
6 GHz: 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
Tested-on: wcn7850 hw2.0 PCI WLAN.IOE_HMT.1.1-00018-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1
Fixes: 4f242b1d69 ("wifi: ath12k: support get_survey mac op for single wiphy")
Signed-off-by: Matthew Leach <matthew.leach@collabora.com>
Reviewed-by: Baochen Qiang <baochen.qiang@oss.qualcomm.com>
Reviewed-by: Rameshkumar Sundaram <rameshkumar.sundaram@oss.qualcomm.com>
Link: https://patch.msgid.link/20260703-ath12-survey-band-fix-v3-1-2fb050c2505a@collabora.com
[fixed ath12k-check issues]
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
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