Currently mac80211 will send 3 scan request for each scan of WCN7850, they are 2.4 GHz/5 GHz/6 GHz band scan. Firmware of WCN7850 will cache the RNR IE(Reduced Neighbor Report element) which exist in the beacon of 2.4 GHz/5 GHz of the AP which is co-located with 6 GHz, and then use the cache to scan in 6 GHz band scan if the 6 GHz scan is in the same scan with the 2.4 GHz/5 GHz band, this will helpful to search more AP of 6 GHz. Also it will decrease the time cost of scan because firmware will use dual-band scan for the 2.4 GHz/5 GHz, it means the 2.4 GHz and 5 GHz scans are doing simultaneously. Set the flag IEEE80211_HW_SINGLE_SCAN_ON_ALL_BANDS for WCN7850 since it supports 2.4 GHz/5 GHz/6 GHz in a single wiphy/ieee80211_hw. This does not impact QCN9274, because it is not single_phy, so does not have 2.4 GHz/5 GHz/6 GHz in the same wiphy, then it does not match the condition and then IEEE80211_HW_SINGLE_SCAN_ON_ALL_BANDS will not set for QCN9274. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4 Signed-off-by: Wen Gong <quic_wgong@xxxxxxxxxxx> --- drivers/net/wireless/ath/ath12k/mac.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c index 0f2af2f14ef7..d4dc03dc8d11 100644 --- a/drivers/net/wireless/ath/ath12k/mac.c +++ b/drivers/net/wireless/ath/ath12k/mac.c @@ -7232,6 +7232,11 @@ static int __ath12k_mac_register(struct ath12k *ar) ar->hw->wiphy->interface_modes = ab->hw_params->interface_modes; + if (ar->hw->wiphy->bands[NL80211_BAND_2GHZ] && + ar->hw->wiphy->bands[NL80211_BAND_5GHZ] && + ar->hw->wiphy->bands[NL80211_BAND_6GHZ]) + ieee80211_hw_set(ar->hw, SINGLE_SCAN_ON_ALL_BANDS); + ieee80211_hw_set(ar->hw, SIGNAL_DBM); ieee80211_hw_set(ar->hw, SUPPORTS_PS); ieee80211_hw_set(ar->hw, SUPPORTS_DYNAMIC_PS); base-commit: 3f257461ab0ab19806bae2bfde4c3cd88dbf050e -- 2.40.1
