Currently mac80211 will send 3 scan request for each scan of WCN6855, they are 2.4 GHz/5 GHz/6 GHz band scan. Firmware of WCN6855 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 WCN6855 since it supports 2.4 GHz/5 GHz/6 GHz and it is single pdev which means all the 2.4 GHz/5 GHz/6 GHz exist in the same wiphy/ieee80211_hw. Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1 Signed-off-by: Wen Gong <quic_wgong@xxxxxxxxxxx> --- drivers/net/wireless/ath/ath11k/mac.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index 06d20658586a..8218ea52f285 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -7915,6 +7915,9 @@ static int __ath11k_mac_register(struct ath11k *ar) ar->hw->wiphy->interface_modes = ab->hw_params.interface_modes; + if (ab->hw_params.single_pdev_only && ar->supports_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); -- 2.31.1
