diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index f45f32f3b5f6..d4aa4540c8e6 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -648,6 +648,18 @@ struct ath12k *ath12k_mac_get_ar_by_pdev_id(struct ath12k_base *ab, u32 pdev_id)
 	return NULL;
 }
 
+static bool ath12k_mac_is_ml_arvif(struct ath12k_link_vif *arvif)
+{
+	struct ath12k_vif *ahvif = arvif->ahvif;
+
+	lockdep_assert_wiphy(ahvif->ah->hw->wiphy);
+
+	if (ahvif->vif->valid_links & BIT(arvif->link_id))
+		return true;
+
+	return false;
+}
+
 static struct ath12k *ath12k_mac_get_ar_by_chan(struct ieee80211_hw *hw,
 						struct ieee80211_channel *channel)
 {
@@ -1512,7 +1524,8 @@ static int ath12k_mac_setup_bcn_tmpl_ema(struct ath12k_link_vif *arvif)
 	tx_ahvif = ath12k_vif_to_ahvif(ahvif->vif->mbssid_tx_vif);
 	tx_arvif = &tx_ahvif->deflink;
 	beacons = ieee80211_beacon_get_template_ema_list(ath12k_ar_to_hw(tx_arvif->ar),
-							 tx_ahvif->vif, 0);
+							 tx_ahvif->vif,
+							 tx_arvif->link_id);
 	if (!beacons || !beacons->cnt) {
 		ath12k_warn(arvif->ar->ab,
 			    "failed to get ema beacon templates from mac80211\n");
@@ -1577,7 +1590,7 @@ static int ath12k_mac_setup_bcn_tmpl(struct ath12k_link_vif *arvif)
 	}
 
 	bcn = ieee80211_beacon_get_template(ath12k_ar_to_hw(tx_arvif->ar), tx_ahvif->vif,
-					    &offs, 0);
+					    &offs, tx_arvif->link_id);
 	if (!bcn) {
 		ath12k_warn(ab, "failed to get beacon template from mac80211\n");
 		return -EPERM;
@@ -1658,7 +1671,7 @@ static void ath12k_control_beaconing(struct ath12k_link_vif *arvif,
 
 	ahvif->aid = 0;
 
-	ether_addr_copy(arvif->bssid, info->bssid);
+	ether_addr_copy(arvif->bssid, info->addr);
 
 	params.vdev_id = arvif->vdev_id;
 	params.aid = ahvif->aid;
@@ -6671,6 +6684,8 @@ static int ath12k_mac_setup_vdev_create_arg(struct ath12k_link_vif *arvif,
 	struct ath12k_vif *ahvif = arvif->ahvif;
 	int ret;
 
+	lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);
+
 	arg->if_id = arvif->vdev_id;
 	arg->type = ahvif->vdev_type;
 	arg->subtype = ahvif->vdev_subtype;
@@ -6702,6 +6717,17 @@ static int ath12k_mac_setup_vdev_create_arg(struct ath12k_link_vif *arvif,
 	}
 
 	arg->if_stats_id = ath12k_mac_get_vdev_stats_id(arvif);
+
+	if (ath12k_mac_is_ml_arvif(arvif)) {
+		if (hweight16(ahvif->vif->valid_links) > ATH12K_WMI_MLO_MAX_LINKS) {
+			ath12k_warn(ar->ab, "too many MLO links during setting up vdev: %d",
+				    ahvif->vif->valid_links);
+			return -EINVAL;
+		}
+
+		ether_addr_copy(arg->mld_addr, ahvif->vif->addr);
+	}
+
 	return 0;
 }
 
@@ -7639,6 +7665,61 @@ ath12k_mac_check_down_grade_phy_mode(struct ath12k *ar,
 	return down_mode;
 }
 
+static void
+ath12k_mac_mlo_get_vdev_args(struct ath12k_link_vif *arvif,
+			     struct wmi_ml_arg *ml_arg)
+{
+	struct ath12k_vif *ahvif = arvif->ahvif;
+	struct wmi_ml_partner_info *partner_info;
+	struct ieee80211_bss_conf *link_conf;
+	struct ath12k_link_vif *arvif_p;
+	unsigned long links;
+	u8 link_id;
+
+	lockdep_assert_wiphy(ahvif->ah->hw->wiphy);
+
+	if (!ath12k_mac_is_ml_arvif(arvif))
+		return;
+
+	if (hweight16(ahvif->vif->valid_links) > ATH12K_WMI_MLO_MAX_LINKS)
+		return;
+
+	rcu_read_lock();
+
+	ml_arg->enabled = true;
+
+	/* Driver always add a new link via VDEV START, FW takes
+	 * care of internally adding this link to existing
+	 * link vdevs which are advertised as partners below
+	 */
+	ml_arg->link_add = true;
+	partner_info = ml_arg->partner_info;
+
+	links = ahvif->links_map;
+	for_each_set_bit(link_id, &links, IEEE80211_MLD_MAX_NUM_LINKS) {
+		arvif_p = rcu_dereference(ahvif->link[link_id]);
+
+		if (WARN_ON(!arvif_p))
+			continue;
+
+		if (arvif == arvif_p)
+			continue;
+
+		link_conf = rcu_dereference(ahvif->vif->link_conf[arvif_p->link_id]);
+
+		if (!link_conf)
+			continue;
+
+		partner_info->vdev_id = arvif_p->vdev_id;
+		partner_info->hw_link_id = arvif_p->ar->pdev->hw_link_id;
+		ether_addr_copy(partner_info->addr, link_conf->addr);
+		ml_arg->num_partner_links++;
+		partner_info++;
+	}
+
+	rcu_read_unlock();
+}
+
 static int
 ath12k_mac_vdev_start_restart(struct ath12k_link_vif *arvif,
 			      struct ieee80211_chanctx_conf *ctx,
@@ -7717,6 +7798,9 @@ ath12k_mac_vdev_start_restart(struct ath12k_link_vif *arvif,
 
 	arg.passive |= !!(chandef->chan->flags & IEEE80211_CHAN_NO_IR);
 
+	if (!restart)
+		ath12k_mac_mlo_get_vdev_args(arvif, &arg.ml);
+
 	ath12k_dbg(ab, ATH12K_DBG_MAC,
 		   "mac vdev %d start center_freq %d phymode %s punct_bitmap 0x%x\n",
 		   arg.vdev_id, arg.freq,
diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c
index dced2aa9ba1a..e089b58bbea1 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.c
+++ b/drivers/net/wireless/ath/ath12k/wmi.c
@@ -821,6 +821,8 @@ int ath12k_wmi_vdev_create(struct ath12k *ar, u8 *macaddr,
 	struct wmi_vdev_create_cmd *cmd;
 	struct sk_buff *skb;
 	struct ath12k_wmi_vdev_txrx_streams_params *txrx_streams;
+	bool is_ml_vdev = is_valid_ether_addr(args->mld_addr);
+	struct wmi_vdev_create_mlo_params *ml_params;
 	struct wmi_tlv *tlv;
 	int ret, len;
 	void *ptr;
@@ -830,7 +832,8 @@ int ath12k_wmi_vdev_create(struct ath12k *ar, u8 *macaddr,
 	 * both the bands.
 	 */
 	len = sizeof(*cmd) + TLV_HDR_SIZE +
-		(WMI_NUM_SUPPORTED_BAND_MAX * sizeof(*txrx_streams));
+		(WMI_NUM_SUPPORTED_BAND_MAX * sizeof(*txrx_streams)) +
+		(is_ml_vdev ? TLV_HDR_SIZE + sizeof(*ml_params) : 0);
 
 	skb = ath12k_wmi_alloc_skb(wmi->wmi_ab, len);
 	if (!skb)
@@ -879,6 +882,21 @@ int ath12k_wmi_vdev_create(struct ath12k *ar, u8 *macaddr,
 	txrx_streams->supported_rx_streams =
 				cpu_to_le32(args->chains[NL80211_BAND_5GHZ].rx);
 
+	ptr += WMI_NUM_SUPPORTED_BAND_MAX * sizeof(*txrx_streams);
+
+	if (is_ml_vdev) {
+		tlv = ptr;
+		tlv->header = ath12k_wmi_tlv_hdr(WMI_TAG_ARRAY_STRUCT,
+						 sizeof(*ml_params));
+		ptr += TLV_HDR_SIZE;
+		ml_params = ptr;
+
+		ml_params->tlv_header =
+			ath12k_wmi_tlv_cmd_hdr(WMI_TAG_MLO_VDEV_CREATE_PARAMS,
+					       sizeof(*ml_params));
+		ether_addr_copy(ml_params->mld_macaddr.addr, args->mld_addr);
+	}
+
 	ath12k_dbg(ar->ab, ATH12K_DBG_WMI,
 		   "WMI vdev create: id %d type %d subtype %d macaddr %pM pdevid %d\n",
 		   args->if_id, args->type, args->subtype,
@@ -1020,19 +1038,27 @@ static void ath12k_wmi_put_wmi_channel(struct ath12k_wmi_channel_params *chan,
 int ath12k_wmi_vdev_start(struct ath12k *ar, struct wmi_vdev_start_req_arg *arg,
 			  bool restart)
 {
+	struct wmi_vdev_start_mlo_params *ml_params;
+	struct wmi_partner_link_info *partner_info;
 	struct ath12k_wmi_pdev *wmi = ar->wmi;
 	struct wmi_vdev_start_request_cmd *cmd;
 	struct sk_buff *skb;
 	struct ath12k_wmi_channel_params *chan;
 	struct wmi_tlv *tlv;
 	void *ptr;
-	int ret, len;
+	int ret, len, i, ml_arg_size = 0;
 
 	if (WARN_ON(arg->ssid_len > sizeof(cmd->ssid.ssid)))
 		return -EINVAL;
 
 	len = sizeof(*cmd) + sizeof(*chan) + TLV_HDR_SIZE;
 
+	if (!restart && arg->ml.enabled) {
+		ml_arg_size = TLV_HDR_SIZE + sizeof(*ml_params) +
+			      TLV_HDR_SIZE + (arg->ml.num_partner_links *
+					      sizeof(*partner_info));
+		len += ml_arg_size;
+	}
 	skb = ath12k_wmi_alloc_skb(wmi->wmi_ab, len);
 	if (!skb)
 		return -ENOMEM;
@@ -1085,6 +1111,61 @@ int ath12k_wmi_vdev_start(struct ath12k *ar, struct wmi_vdev_start_req_arg *arg,
 
 	ptr += sizeof(*tlv);
 
+	if (ml_arg_size) {
+		tlv = ptr;
+		tlv->header = ath12k_wmi_tlv_hdr(WMI_TAG_ARRAY_STRUCT,
+						 sizeof(*ml_params));
+		ptr += TLV_HDR_SIZE;
+
+		ml_params = ptr;
+
+		ml_params->tlv_header =
+			ath12k_wmi_tlv_cmd_hdr(WMI_TAG_MLO_VDEV_START_PARAMS,
+					       sizeof(*ml_params));
+
+		ml_params->flags = le32_encode_bits(arg->ml.enabled,
+						    ATH12K_WMI_FLAG_MLO_ENABLED) |
+				   le32_encode_bits(arg->ml.assoc_link,
+						    ATH12K_WMI_FLAG_MLO_ASSOC_LINK) |
+				   le32_encode_bits(arg->ml.mcast_link,
+						    ATH12K_WMI_FLAG_MLO_MCAST_VDEV) |
+				   le32_encode_bits(arg->ml.link_add,
+						    ATH12K_WMI_FLAG_MLO_LINK_ADD);
+
+		ath12k_dbg(ar->ab, ATH12K_DBG_WMI, "vdev %d start ml flags 0x%x\n",
+			   arg->vdev_id, ml_params->flags);
+
+		ptr += sizeof(*ml_params);
+
+		tlv = ptr;
+		tlv->header = ath12k_wmi_tlv_hdr(WMI_TAG_ARRAY_STRUCT,
+						 arg->ml.num_partner_links *
+						 sizeof(*partner_info));
+		ptr += TLV_HDR_SIZE;
+
+		partner_info = ptr;
+
+		for (i = 0; i < arg->ml.num_partner_links; i++) {
+			partner_info->tlv_header =
+				ath12k_wmi_tlv_cmd_hdr(WMI_TAG_MLO_PARTNER_LINK_PARAMS,
+						       sizeof(*partner_info));
+			partner_info->vdev_id =
+				cpu_to_le32(arg->ml.partner_info[i].vdev_id);
+			partner_info->hw_link_id =
+				cpu_to_le32(arg->ml.partner_info[i].hw_link_id);
+			ether_addr_copy(partner_info->vdev_addr.addr,
+					arg->ml.partner_info[i].addr);
+
+			ath12k_dbg(ar->ab, ATH12K_DBG_WMI, "partner vdev %d hw_link_id %d macaddr%pM\n",
+				   partner_info->vdev_id, partner_info->hw_link_id,
+				   partner_info->vdev_addr.addr);
+
+			partner_info++;
+		}
+
+		ptr = partner_info;
+	}
+
 	ath12k_dbg(ar->ab, ATH12K_DBG_WMI, "vdev %s id 0x%x freq 0x%x mode 0x%x\n",
 		   restart ? "restart" : "start", arg->vdev_id,
 		   arg->freq, arg->mode);
diff --git a/drivers/net/wireless/ath/ath12k/wmi.h b/drivers/net/wireless/ath/ath12k/wmi.h
index 6f55dbdf629d..33b9643644c6 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.h
+++ b/drivers/net/wireless/ath/ath12k/wmi.h
@@ -1929,6 +1929,19 @@ enum wmi_tlv_tag {
 	WMI_TAG_REGULATORY_RULE_EXT_STRUCT = 0x3A9,
 	WMI_TAG_REG_CHAN_LIST_CC_EXT_EVENT,
 	WMI_TAG_EHT_RATE_SET = 0x3C4,
+	WMI_TAG_DCS_AWGN_INT_TYPE = 0x3C5,
+	WMI_TAG_MLO_TX_SEND_PARAMS,
+	WMI_TAG_MLO_PARTNER_LINK_PARAMS,
+	WMI_TAG_MLO_PARTNER_LINK_PARAMS_PEER_ASSOC,
+	WMI_TAG_MLO_SETUP_CMD = 0x3C9,
+	WMI_TAG_MLO_SETUP_COMPLETE_EVENT,
+	WMI_TAG_MLO_READY_CMD,
+	WMI_TAG_MLO_TEARDOWN_CMD,
+	WMI_TAG_MLO_TEARDOWN_COMPLETE,
+	WMI_TAG_MLO_PEER_ASSOC_PARAMS = 0x3D0,
+	WMI_TAG_MLO_PEER_CREATE_PARAMS = 0x3D5,
+	WMI_TAG_MLO_VDEV_START_PARAMS = 0x3D6,
+	WMI_TAG_MLO_VDEV_CREATE_PARAMS = 0x3D7,
 	WMI_TAG_PDEV_SET_BIOS_SAR_TABLE_CMD = 0x3D8,
 	WMI_TAG_PDEV_SET_BIOS_GEO_TABLE_CMD = 0x3D9,
 	WMI_TAG_PDEV_SET_BIOS_INTERFACE_CMD = 0x3FB,
@@ -2740,6 +2753,7 @@ struct ath12k_wmi_vdev_create_arg {
 	u8 if_stats_id;
 	u32 mbssid_flags;
 	u32 mbssid_tx_vdev_id;
+	u8 mld_addr[ETH_ALEN];
 };
 
 #define ATH12K_MAX_VDEV_STATS_ID	0x30
@@ -2766,6 +2780,44 @@ struct ath12k_wmi_vdev_txrx_streams_params {
 	__le32 supported_rx_streams;
 } __packed;
 
+/* 2 word representation of MAC addr */
+struct wmi_mac_addr {
+	union {
+		u8 addr[6];
+		struct {
+			u32 word0;
+			u32 word1;
+		} __packed;
+	} __packed;
+} __packed;
+
+struct wmi_vdev_create_mlo_params {
+	__le32 tlv_header;
+	struct wmi_mac_addr mld_macaddr;
+} __packed;
+
+#define ATH12K_WMI_FLAG_MLO_ENABLED			BIT(0)
+#define ATH12K_WMI_FLAG_MLO_ASSOC_LINK			BIT(1)
+#define ATH12K_WMI_FLAG_MLO_PRIMARY_UMAC		BIT(2)
+#define ATH12K_WMI_FLAG_MLO_LOGICAL_LINK_IDX_VALID	BIT(3)
+#define ATH12K_WMI_FLAG_MLO_PEER_ID_VALID		BIT(4)
+#define ATH12K_WMI_FLAG_MLO_MCAST_VDEV			BIT(5)
+#define ATH12K_WMI_FLAG_MLO_EMLSR_SUPPORT		BIT(6)
+#define ATH12K_WMI_FLAG_MLO_FORCED_INACTIVE		BIT(7)
+#define ATH12K_WMI_FLAG_MLO_LINK_ADD			BIT(8)
+
+struct wmi_vdev_start_mlo_params {
+	__le32 tlv_header;
+	__le32 flags;
+} __packed;
+
+struct wmi_partner_link_info {
+	__le32 tlv_header;
+	__le32 vdev_id;
+	__le32 hw_link_id;
+	struct wmi_mac_addr vdev_addr;
+} __packed;
+
 struct wmi_vdev_delete_cmd {
 	__le32 tlv_header;
 	__le32 vdev_id;
@@ -2909,6 +2961,27 @@ enum wmi_phy_mode {
 	MODE_MAX = 33,
 };
 
+#define ATH12K_WMI_MLO_MAX_LINKS 4
+
+struct wmi_ml_partner_info {
+	u32 vdev_id;
+	u32 hw_link_id;
+	u8 addr[ETH_ALEN];
+	bool assoc_link;
+	bool primary_umac;
+	bool logical_link_idx_valid;
+	u32 logical_link_idx;
+};
+
+struct wmi_ml_arg {
+	bool enabled;
+	bool assoc_link;
+	bool mcast_link;
+	bool link_add;
+	u8 num_partner_links;
+	struct wmi_ml_partner_info partner_info[ATH12K_WMI_MLO_MAX_LINKS];
+};
+
 struct wmi_vdev_start_req_arg {
 	u32 vdev_id;
 	u32 freq;
@@ -2946,6 +3019,7 @@ struct wmi_vdev_start_req_arg {
 	u32 mbssid_flags;
 	u32 mbssid_tx_vdev_id;
 	u32 punct_bitmap;
+	struct wmi_ml_arg ml;
 };
 
 struct ath12k_wmi_peer_create_arg {
