qcacld-3.0: Add maximum sta number limitation for each pe_session

Currently use maxStation to create dph_hash_table for each
pe_session, actually maxStation is total allowed maximum
sta for all pe_session that gets from ini gSoftApMaxPeers
and firmware capability.

SIR_SAP_MAX_NUM_PEERS is maximum sta number for each pe_session
and can be configured from config file, add max_sta_of_pe_session
to limit maximum sta number for each pe_session, set
max_sta_of_pe_session as minimum value between maxStation and
SIR_SAP_MAX_NUM_PEERS.

Change-Id: Iaa01c91cd164c470b3f76bffc826ca5abdd4d0d3
CRs-Fixed: 2676484

core/mac/inc/ani_global.h

@@ -624,6 +624,7 @@ typedef struct sAniSirLim {
 	/* wsc info required to form the wsc IE */
 	tLimWscIeInfo wscIeInfo;
 	struct pe_session *gpSession;  /* Pointer to  session table */
+	uint8_t max_sta_of_pe_session;
 
 	qdf_mutex_t lim_frame_register_lock;
 	qdf_list_t gLimMgmtFrameRegistratinQueue;

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

@@ -53,7 +53,7 @@
 void lim_init_peer_idxpool(struct mac_context *mac, struct pe_session *pe_session)
 {
 	uint8_t i;
-	uint8_t maxAssocSta = mac->lim.maxStation;
+	uint8_t maxAssocSta = mac->lim.max_sta_of_pe_session;
 
 	pe_session->gpLimPeerIdxpool[0] = 0;
 

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

@@ -798,6 +798,9 @@ QDF_STATUS pe_open(struct mac_context *mac, struct cds_config_info *cds_cfg)
 
 	mac->lim.maxBssId = cds_cfg->max_bssid;
 	mac->lim.maxStation = cds_cfg->max_station;
+	mac->lim.max_sta_of_pe_session =
+			(cds_cfg->max_station > SIR_SAP_MAX_NUM_PEERS) ?
+				SIR_SAP_MAX_NUM_PEERS : cds_cfg->max_station;
 	qdf_spinlock_create(&mac->sys.bbt_mgmt_lock);
 
 	if ((mac->lim.maxBssId == 0) || (mac->lim.maxStation == 0)) {
@@ -2437,7 +2440,8 @@ pe_roam_synch_callback(struct mac_context *mac_ctx,
 	}
 	status = QDF_STATUS_E_FAILURE;
 	ft_session_ptr = pe_create_session(mac_ctx, bss_desc->bssId,
-					   &session_id, mac_ctx->lim.maxStation,
+					   &session_id,
+					   mac_ctx->lim.max_sta_of_pe_session,
 					   session_ptr->bssType,
 					   session_ptr->vdev_id,
 					   session_ptr->opmode);
@@ -2792,7 +2796,7 @@ void lim_mon_init_session(struct mac_context *mac_ptr,
 
 	psession_entry = pe_create_session(mac_ptr, msg->bss_id.bytes,
 					   &session_id,
-					   mac_ptr->lim.maxStation,
+					   mac_ptr->lim.max_sta_of_pe_session,
 					   eSIR_MONITOR_MODE,
 					   msg->vdev_id,
 					   QDF_MONITOR_MODE);

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

@@ -439,7 +439,8 @@ void lim_handle_ft_pre_auth_rsp(struct mac_context *mac, QDF_STATUS status,
 		      pe_session->ftPEContext.pFTPreAuthReq->pbssDescription;
 		ft_session =
 			pe_create_session(mac, pbssDescription->bssId,
-					  &sessionId, mac->lim.maxStation,
+					  &sessionId,
+					  mac->lim.max_sta_of_pe_session,
 					  pe_session->bssType,
 					  pe_session->vdev_id,
 					  pe_session->opmode);

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

@@ -585,7 +585,8 @@ __lim_handle_sme_start_bss_request(struct mac_context *mac_ctx, uint32_t *msg_bu
 		} else {
 			session = pe_create_session(mac_ctx,
 					sme_start_bss_req->bssid.bytes,
-					&session_id, mac_ctx->lim.maxStation,
+					&session_id,
+					mac_ctx->lim.max_sta_of_pe_session,
 					sme_start_bss_req->bssType,
 					sme_start_bss_req->vdev_id,
 					sme_start_bss_req->bssPersona);
@@ -1233,7 +1234,8 @@ __lim_process_sme_join_req(struct mac_context *mac_ctx, void *msg_buf)
 			 * Try to Create a new session
 			 */
 			session = pe_create_session(mac_ctx, bss_desc->bssId,
-					&session_id, mac_ctx->lim.maxStation,
+					&session_id,
+					mac_ctx->lim.max_sta_of_pe_session,
 					eSIR_INFRASTRUCTURE_MODE,
 					sme_join_req->vdev_id,
 					sme_join_req->staPersona);
@@ -5245,7 +5247,7 @@ void send_extended_chan_switch_action_frame(struct mac_context *mac_ctx,
 	switch_count = session_entry->gLimChannelSwitch.switchCount;
 
 	if (LIM_IS_AP_ROLE(session_entry)) {
-		for (i = 0; i <= mac_ctx->lim.maxStation; i++) {
+		for (i = 0; i <= mac_ctx->lim.max_sta_of_pe_session; i++) {
 			psta =
 			  session_entry->dph.dphHashTable.pDphNodeArray + i;
 			if (psta && psta->added)
@@ -5289,7 +5291,7 @@ void lim_send_chan_switch_action_frame(struct mac_context *mac_ctx,
 	switch_count = session_entry->gLimChannelSwitch.switchCount;
 
 	if (LIM_IS_AP_ROLE(session_entry)) {
-		for (i = 0; i < mac_ctx->lim.maxStation; i++) {
+		for (i = 0; i <= mac_ctx->lim.max_sta_of_pe_session; i++) {
 			psta = dph_node_array_ptr + i;
 			if (!(psta && psta->added))
 				continue;

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

@@ -210,7 +210,7 @@ static void pe_reset_protection_callback(void *ptr)
 
 	qdf_mem_zero(&beacon_params, sizeof(tUpdateBeaconParams));
 	/* index 0, is self node, peers start from 1 */
-	for (i = 1 ; i <= mac_ctx->mlme_cfg->sap_cfg.assoc_sta_limit ; i++) {
+	for (i = 1 ; i <= mac_ctx->lim.max_sta_of_pe_session; i++) {
 		station_hash_node = dph_get_hash_entry(mac_ctx, i,
 					&pe_session_entry->dph.dphHashTable);
 		if (!station_hash_node)

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

@@ -5767,8 +5767,8 @@ void lim_del_pmf_sa_query_timer(struct mac_context *mac_ctx, struct pe_session *
 	tpDphHashNode sta_ds = NULL;
 
 	for (associated_sta = 1;
-			associated_sta <
-			mac_ctx->mlme_cfg->sap_cfg.assoc_sta_limit;
+			associated_sta <=
+			mac_ctx->lim.max_sta_of_pe_session;
 			associated_sta++) {
 		sta_ds = dph_get_hash_entry(mac_ctx, associated_sta,
 				&pe_session->dph.dphHashTable);