Commit cf8f3d4d authored by Tamizh Chelvam Raja's avatar Tamizh Chelvam Raja Committed by Kalle Valo
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wifi: ath11k: Set ext passive scan flag to adjust passive scan start time 



Set the WMI_SCAN_FLAG_EXT_PASSIVE_SCAN_START_TIME_ENHANCE flag
while sending the scan command.  If this flag is enabled when the
incoming scan request comes with a strict start time and its duration
overlaps with next TBTT, then target adjust the start time accordingly
for passive scan. Target supporting this feature will advertise
WMI_TLV_SERVICE_PASSIVE_SCAN_START_TIME_ENHANCE.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01467-QCAHKSWPL_SILICONZ-1

Signed-off-by: default avatarTamizh Chelvam Raja <quic_tamizhr@quicinc.com>
Signed-off-by: default avatarKalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20221222131720.11368-1-quic_tamizhr@quicinc.com
parent 3caf31e7

drivers/net/wireless/ath/ath11k/wmi.c

+8 −0
Original line number Diff line number Diff line
@@ -2068,6 +2068,12 @@ void ath11k_wmi_start_scan_init(struct ath11k *ar, 
				  WMI_SCAN_EVENT_FOREIGN_CHAN |

				  WMI_SCAN_EVENT_DEQUEUED;

	arg->scan_flags |= WMI_SCAN_CHAN_STAT_EVENT;



	if (test_bit(WMI_TLV_SERVICE_PASSIVE_SCAN_START_TIME_ENHANCE,

		     ar->ab->wmi_ab.svc_map))

		arg->scan_ctrl_flags_ext |=

			WMI_SCAN_FLAG_EXT_PASSIVE_SCAN_START_TIME_ENHANCE;



	arg->num_bssid = 1;



	/* fill bssid_list[0] with 0xff, otherwise bssid and RA will be
@@ -2149,6 +2155,8 @@ ath11k_wmi_copy_scan_event_cntrl_flags(struct wmi_start_scan_cmd *cmd, 
	/* for adaptive scan mode using 3 bits (21 - 23 bits) */

	WMI_SCAN_SET_DWELL_MODE(cmd->scan_ctrl_flags,

				param->adaptive_dwell_time_mode);



	cmd->scan_ctrl_flags_ext = param->scan_ctrl_flags_ext;

}



int ath11k_wmi_send_scan_start_cmd(struct ath11k *ar,

drivers/net/wireless/ath/ath11k/wmi.h

+3 −0
Original line number Diff line number Diff line
@@ -2093,6 +2093,7 @@ enum wmi_tlv_service { 
	WMI_TLV_SERVICE_EXT2_MSG = 220,

	WMI_TLV_SERVICE_PEER_POWER_SAVE_DURATION_SUPPORT = 246,

	WMI_TLV_SERVICE_SRG_SRP_SPATIAL_REUSE_SUPPORT = 249,

	WMI_TLV_SERVICE_PASSIVE_SCAN_START_TIME_ENHANCE = 263,



	/* The second 128 bits */

	WMI_MAX_EXT_SERVICE = 256,
@@ -3223,6 +3224,7 @@ struct wmi_start_scan_cmd { 


#define WMI_SCAN_DWELL_MODE_MASK 0x00E00000

#define WMI_SCAN_DWELL_MODE_SHIFT        21

#define WMI_SCAN_FLAG_EXT_PASSIVE_SCAN_START_TIME_ENHANCE   0x00000800



enum {

	WMI_SCAN_DWELL_MODE_DEFAULT      = 0,
@@ -3270,6 +3272,7 @@ struct scan_req_params { 
		};

		u32 scan_events;

	};

	u32 scan_ctrl_flags_ext;

	u32 dwell_time_active;

	u32 dwell_time_active_2g;

	u32 dwell_time_passive;