qcacld-3.0: Limit unicast probe req during join timeout in MCC

Currently probe request is sent every 200ms during join timeout
this can lead to 16+ probe req, send during join time.

Change logic to send max 5 probe req during join time,
if candidate freq can lead to MCC concurrency scenario.

Change-Id: I7956771e2cf6724754f59c6db5b07fb45426ae41
CRs-Fixed: 3338329

components/cmn_services/policy_mgr/inc/wlan_policy_mgr_api.h

@@ -2730,6 +2730,17 @@ void policy_mgr_hw_mode_transition_cb(uint32_t old_hw_mode_index,
 		struct policy_mgr_pdev_mac_freq_map *mac_freq_range,
 		struct wlan_objmgr_psoc *context);
 
+/**
+ * policy_mgr_will_freq_lead_to_mcc() - Check if the given freq can lead to
+ * MCC scenario with existing connection
+ * @psoc: psoc pointer
+ * @freq: freq to check with existing connections
+ *
+ * Return: true or false
+ */
+bool policy_mgr_will_freq_lead_to_mcc(struct wlan_objmgr_psoc *psoc,
+				      qdf_freq_t freq);
+
 /**
  * policy_mgr_current_concurrency_is_scc() - To check the current
  * concurrency combination if it is doing SCC

components/cmn_services/policy_mgr/src/wlan_policy_mgr_get_set_utils.c

@@ -6852,6 +6852,34 @@ QDF_STATUS policy_mgr_set_user_cfg(struct wlan_objmgr_psoc *psoc,
 	return QDF_STATUS_SUCCESS;
 }
 
+bool policy_mgr_will_freq_lead_to_mcc(struct wlan_objmgr_psoc *psoc,
+				      qdf_freq_t freq)
+{
+	bool is_mcc = false;
+	uint32_t conn_index;
+	struct policy_mgr_psoc_priv_obj *pm_ctx;
+
+	pm_ctx = policy_mgr_get_context(psoc);
+	if (!pm_ctx) {
+		policy_mgr_err("Invalid Context");
+		return is_mcc;
+	}
+
+	qdf_mutex_acquire(&pm_ctx->qdf_conc_list_lock);
+	for (conn_index = 0; conn_index < MAX_NUMBER_OF_CONC_CONNECTIONS;
+	     conn_index++) {
+		if (pm_conc_connection_list[conn_index].in_use &&
+		    policy_mgr_2_freq_always_on_same_mac(psoc, freq,
+		     pm_conc_connection_list[conn_index].freq)) {
+			is_mcc = true;
+			break;
+		}
+	}
+	qdf_mutex_release(&pm_ctx->qdf_conc_list_lock);
+
+	return is_mcc;
+}
+
 /**
  * policy_mgr_is_two_connection_mcc() - Check if MCC scenario
  * when there are two connections

components/mlme/core/inc/wlan_mlme_main.h

@@ -34,6 +34,9 @@
 #include "wlan_connectivity_logging.h"
 
 #define MAC_MAX_ADD_IE_LENGTH       2048
+/* Join probe request Retry  timer default (200)ms */
+#define JOIN_PROBE_REQ_TIMER_MS              200
+#define MAX_JOIN_PROBE_REQ                   5
 
 /*
  * Following time is used to program WOW_TIMER_PATTERN to FW so that FW will

components/mlme/core/src/wlan_mlme_main.c

@@ -864,6 +864,7 @@ static void mlme_init_timeout_cfg(struct wlan_objmgr_psoc *psoc,
 	timeouts->join_failure_timeout =
 			cfg_get(psoc, CFG_JOIN_FAILURE_TIMEOUT);
 	timeouts->join_failure_timeout_ori = timeouts->join_failure_timeout;
+	timeouts->probe_req_retry_timeout = JOIN_PROBE_REQ_TIMER_MS;
 	timeouts->auth_failure_timeout =
 			cfg_get(psoc, CFG_AUTH_FAILURE_TIMEOUT);
 	timeouts->auth_rsp_timeout =

components/mlme/dispatcher/inc/wlan_mlme_public_struct.h

@@ -2328,6 +2328,7 @@ struct wlan_mlme_power {
 /*
  * struct wlan_mlme_timeout - mlme timeout related config items
  * @join_failure_timeout: join failure timeout (can be changed in connect req)
+ * @probe_req_retry_timeout: Probe req retry timeout during join time
  * @join_failure_timeout_ori: original value of above join timeout
  * @auth_failure_timeout: authenticate failure timeout
  * @auth_rsp_timeout: authenticate response timeout
@@ -2343,6 +2344,7 @@ struct wlan_mlme_power {
  */
 struct wlan_mlme_timeout {
 	uint32_t join_failure_timeout;
+	uint32_t probe_req_retry_timeout;
 	uint32_t join_failure_timeout_ori;
 	uint32_t auth_failure_timeout;
 	uint32_t auth_rsp_timeout;

core/mac/src/pe/lim/lim_process_sme_req_messages.c

@@ -2987,7 +2987,7 @@ lim_fill_pe_session(struct mac_context *mac_ctx, struct pe_session *session,
 	struct ps_global_info *ps_global_info = &mac_ctx->sme.ps_global_info;
 	struct ps_params *ps_param =
 				&ps_global_info->ps_params[session->vdev_id];
-	uint32_t join_timeout;
+	uint32_t timeout;
 	uint8_t programmed_country[REG_ALPHA2_LEN + 1];
 	enum reg_6g_ap_type power_type_6g;
 	bool ctry_code_match;
@@ -3072,14 +3072,27 @@ lim_fill_pe_session(struct mac_context *mac_ctx, struct pe_session *session,
 	 * Join timeout: if we find a BeaconInterval in the BssDescription,
 	 * then set the Join Timeout to be 10 x the BeaconInterval.
 	 */
-	join_timeout = mac_ctx->mlme_cfg->timeouts.join_failure_timeout_ori;
+	timeout = mac_ctx->mlme_cfg->timeouts.join_failure_timeout_ori;
 	if (bss_desc->beaconInterval)
-		join_timeout = QDF_MAX(10 * bss_desc->beaconInterval,
-				       join_timeout);
+		timeout = QDF_MAX(10 * bss_desc->beaconInterval, timeout);
 
 	mac_ctx->mlme_cfg->timeouts.join_failure_timeout =
-		QDF_MIN(join_timeout,
+		QDF_MIN(timeout,
 			mac_ctx->mlme_cfg->timeouts.join_failure_timeout_ori);
+	/*
+	 * Calculate probe request retry timeout,
+	 * Change probe req retry to MAX_JOIN_PROBE_REQ if sta freq
+	 * can cause MCC
+	 */
+	timeout = JOIN_PROBE_REQ_TIMER_MS;
+	if (policy_mgr_will_freq_lead_to_mcc(mac_ctx->psoc,
+					     bss_desc->chan_freq)) {
+		 /* Send MAX_JOIN_PROBE_REQ probe req during join timeout */
+		timeout = mac_ctx->mlme_cfg->timeouts.join_failure_timeout/
+							MAX_JOIN_PROBE_REQ;
+		timeout = QDF_MAX(JOIN_PROBE_REQ_TIMER_MS, timeout);
+	}
+	mac_ctx->mlme_cfg->timeouts.probe_req_retry_timeout = timeout;
 
 	lim_join_req_update_ht_vht_caps(mac_ctx, session, bss_desc,
 					ie_struct);

core/mac/src/pe/lim/lim_timer_utils.c

@@ -40,8 +40,6 @@
 #define LIM_QUIET_BSS_TIMER_TICK                 100
 /* Lim KeepAlive timer default (3000)ms */
 #define LIM_KEEPALIVE_TIMER_MS                   3000
-/* Lim JoinProbeRequest Retry  timer default (200)ms */
-#define LIM_JOIN_PROBE_REQ_TIMER_MS              200
 /* Lim Periodic Auth Retry timer default 60 ms */
 #define LIM_AUTH_RETRY_TIMER_MS   60
 
@@ -68,13 +66,15 @@ static bool lim_create_non_ap_timers(struct mac_context *mac)
 		pe_err("could not create Join failure timer");
 		return false;
 	}
+	cfgValue = SYS_MS_TO_TICKS(
+			mac->mlme_cfg->timeouts.probe_req_retry_timeout);
 	/* Send unicast probe req frame every 200 ms */
 	if (tx_timer_create(mac,
 			    &mac->lim.lim_timers.gLimPeriodicJoinProbeReqTimer,
 			    "Periodic Join Probe Request Timer",
 			    lim_timer_handler,
 			    SIR_LIM_PERIODIC_JOIN_PROBE_REQ_TIMEOUT,
-			    SYS_MS_TO_TICKS(LIM_JOIN_PROBE_REQ_TIMER_MS), 0,
+			    cfgValue, 0,
 			    TX_NO_ACTIVATE) != TX_SUCCESS) {
 		pe_err("could not create Periodic Join Probe Request tmr");
 		return false;
@@ -533,8 +533,8 @@ void lim_deactivate_and_change_timer(struct mac_context *mac, uint32_t timerId)
 			/* Could not deactivate periodic join req Times. */
 			pe_err("Unable to deactivate periodic join request timer");
 		}
-
-		val = SYS_MS_TO_TICKS(LIM_JOIN_PROBE_REQ_TIMER_MS);
+		val = SYS_MS_TO_TICKS(
+			mac->mlme_cfg->timeouts.probe_req_retry_timeout);
 		if (tx_timer_change
 			    (&mac->lim.lim_timers.gLimPeriodicJoinProbeReqTimer,
 			     val, 0) != TX_SUCCESS) {