qcacld-3.0: Fetch max num of active links

Fetch max num of active links recommended by AP
from beacon ie in case of ML connection.

CRs-Fixed: 3599428
Change-Id: I82581cbf7b3f6c6ac7f1b31040dad178a3fad27d

Kbuild

@@ -4657,6 +4657,17 @@ CONFIG_WLAN_MAX_ML_DEFAULT_LINK  ?= 1
 endif
 ccflags-y += -DWLAN_MAX_ML_DEFAULT_LINK=$(CONFIG_WLAN_MAX_ML_DEFAULT_LINK)
 
+ifdef CONFIG_WLAN_FEATURE_11BE_MLO
+ifndef CONFIG_WLAN_DEFAULT_REC_LINK_VALUE
+CONFIG_WLAN_DEFAULT_REC_LINK_VALUE  ?= 2
+endif
+else
+ifndef CONFIG_WLAN_DEFAULT_REC_LINK_VALUE
+CONFIG_WLAN_DEFAULT_REC_LINK_VALUE  ?= 2
+endif
+endif
+ccflags-y += -DWLAN_DEFAULT_REC_LINK_VALUE=$(CONFIG_WLAN_DEFAULT_REC_LINK_VALUE)
+
 ifdef CONFIG_WLAN_FEATURE_11BE_MLO
 CONFIG_WLAN_MAX_ML_BSS_LINKS ?= 3
 else

configs/config_to_feature.h

@@ -2891,6 +2891,20 @@
 #define WLAN_MAX_ML_DEFAULT_LINK CONFIG_WLAN_MAX_ML_DEFAULT_LINK
 #endif
 
+#ifdef CONFIG_WLAN_FEATURE_11BE_MLO
+#ifndef CONFIG_WLAN_DEFAULT_REC_LINK_VALUE
+#define CONFIG_WLAN_DEFAULT_REC_LINK_VALUE (2)
+#endif
+#else
+#ifndef CONFIG_WLAN_DEFAULT_REC_LINK_VALUE
+#define CONFIG_WLAN_DEFAULT_REC_LINK_VALUE (2)
+#endif
+#endif
+
+#ifdef CONFIG_WLAN_DEFAULT_REC_LINK_VALUE
+#define WLAN_DEFAULT_REC_LINK_VALUE CONFIG_WLAN_DEFAULT_REC_LINK_VALUE
+#endif
+
 #ifdef CONFIG_WLAN_FEATURE_11BE_MLO
 #ifndef CONFIG_WLAN_MAX_ML_BSS_LINKS
 #define CONFIG_WLAN_MAX_ML_BSS_LINKS (3)

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

@@ -51,6 +51,9 @@
 #endif
 #include "wlan_t2lm_api.h"
 
+/*Invalid Recommended Max Simultaneous Links value */
+#define RESERVED_REC_LINK_VALUE 1
+
 #ifdef WLAN_FEATURE_11BE_MLO
 
 void lim_process_bcn_prb_rsp_t2lm(struct mac_context *mac_ctx,
@@ -82,6 +85,14 @@ void lim_process_bcn_prb_rsp_t2lm(struct mac_context *mac_ctx,
 	wlan_update_t2lm_mapping(vdev, &bcn_ptr->t2lm_ctx, t2lm_ctx->tsf);
 }
 
+static uint8_t valid_max_rec_links(uint8_t value)
+{
+	if (value > RESERVED_REC_LINK_VALUE &&
+	    value <= WLAN_DEFAULT_REC_LINK_VALUE)
+		return value;
+	return WLAN_DEFAULT_REC_LINK_VALUE;
+}
+
 void lim_process_beacon_mlo(struct mac_context *mac_ctx,
 			    struct pe_session *session,
 			    tSchBeaconStruct *bcn_ptr)
@@ -102,6 +113,7 @@ void lim_process_beacon_mlo(struct mac_context *mac_ctx,
 	uint8_t is_sta_csa_synced;
 	struct mlo_link_info *link_info;
 	uint8_t sta_info_len = 0;
+	uint8_t tmp_rec_value;
 
 	if (!session || !bcn_ptr || !mac_ctx) {
 		pe_err("invalid input parameters");
@@ -127,6 +139,12 @@ void lim_process_beacon_mlo(struct mac_context *mac_ctx,
 		pe_debug("EMLSR not supported with D2.0 AP");
 	}
 
+	/** max num of active links recommended by AP */
+	tmp_rec_value =
+	bcn_ptr->mlo_ie.mlo_ie.ext_mld_capab_and_op_info.rec_max_simultaneous_links;
+	mlo_ctx->mlo_max_recom_simult_links =
+		valid_max_rec_links(tmp_rec_value);
+
 	for (i = 0; i < bcn_ptr->mlo_ie.mlo_ie.num_sta_profile; i++) {
 		csa_ie = NULL;
 		xcsa_ie = NULL;

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

@@ -9372,6 +9372,9 @@ void lim_extract_ml_info(struct pe_session *session,
 	ml_link->vdev_id = wlan_vdev_get_id(session->vdev);
 	ml_link->link_id = wlan_vdev_get_link_id(session->vdev);
 
+	ml_link->rec_max_simultaneous_links =
+	session->vdev->mlo_dev_ctx->mlo_max_recom_simult_links;
+
 	link_info = mlo_mgr_get_ap_link_by_link_id(session->vdev->mlo_dev_ctx,
 						   ml_link->link_id);
 	if (!link_info)

core/mac/src/sys/legacy/src/utils/src/parser_api.c

@@ -5281,6 +5281,8 @@ sir_convert_beacon_frame2_mlo_struct(uint8_t *pframe, uint32_t nframe,
 	QDF_STATUS status = QDF_STATUS_SUCCESS;
 	uint8_t bpcc;
 	bool bpcc_found;
+	bool ext_mld_cap_found = false;
+	uint16_t ext_mld_cap = 0;
 
 	if (bcn_frm->mlo_ie.present) {
 		status = util_find_mlie(pframe + WLAN_BEACON_IES_OFFSET,
@@ -5304,6 +5306,17 @@ sir_convert_beacon_frame2_mlo_struct(uint8_t *pframe, uint32_t nframe,
 						  ml_ie_total_len,
 						  &bcn_struct->mlo_ie.mlo_ie);
 
+			util_get_bvmlie_ext_mld_cap_op_info(ml_ie,
+							    ml_ie_total_len,
+							    &ext_mld_cap_found,
+							    &ext_mld_cap);
+			if (ext_mld_cap_found) {
+				bcn_struct->mlo_ie.mlo_ie.ext_mld_capab_and_op_info.rec_max_simultaneous_links =
+				QDF_GET_BITS(
+				ext_mld_cap,
+				WLAN_ML_BV_CINFO_EXTMLDCAPINFO_RECOM_MAX_SIMULT_LINKS_IDX,
+				WLAN_ML_BV_CINFO_EXTMLDCAPINFO_RECOM_MAX_SIMULT_LINKS_BITS);
+			}
 			util_get_bvmlie_bssparamchangecnt(ml_ie,
 							  ml_ie_total_len,
 							  &bpcc_found, &bpcc);

core/wma/inc/wma_if.h

@@ -159,6 +159,7 @@ struct peer_ml_info {
 	struct qdf_mac_addr self_mac_addr;
 	uint8_t num_links;
 	struct ml_partner_link_info partner_info[MLD_MAX_LINKS - 1];
+	uint8_t rec_max_simultaneous_links;
 };
 #endif
 

core/wma/src/wma_mgmt.c

@@ -1158,6 +1158,9 @@ static void wma_populate_peer_mlo_cap(struct peer_assoc_params *peer,
 	qdf_mem_copy(&mlo_params->mac_addr, &ml_info->self_mac_addr,
 		     QDF_MAC_ADDR_SIZE);
 
+	mlo_params->rec_max_simultaneous_links =
+		ml_info->rec_max_simultaneous_links;
+
 	/* Fill partner link info */
 	ml_links->num_links = ml_info->num_links;
 	for (i = 0; i < ml_links->num_links; i++) {