1 files changed, 94 insertions, 65 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/coex.c b/drivers/net/wireless/intel/iwlwifi/mvm/coex.c
index ee3c8a786199..ca63f780140f 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/coex.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/coex.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
 /*
- * Copyright (C) 2013-2014, 2018-2020, 2022 Intel Corporation
+ * Copyright (C) 2013-2014, 2018-2020, 2022-2025 Intel Corporation
  * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
  */
 #include <linux/ieee80211.h>
@@ -116,11 +116,6 @@ iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
 
 	ret = BT_COEX_TX_DIS_LUT;
 
-	if (mvm->cfg->bt_shared_single_ant) {
-		rcu_read_unlock();
-		return ret;
-	}
-
 	phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
 	primary_ch_phy_id = le32_to_cpu(mvm->last_bt_ci_cmd.primary_ch_phy_id);
 	secondary_ch_phy_id =
@@ -186,6 +181,9 @@ static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
 	struct iwl_mvm_sta *mvmsta;
 	u32 value;
 
+	if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_AX210)
+		return 0;
+
 	mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
 	if (!mvmsta)
 		return 0;
@@ -194,7 +192,7 @@ static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
 	if (mvmsta->bt_reduced_txpower == enable)
 		return 0;
 
-	value = mvmsta->sta_id;
+	value = mvmsta->deflink.sta_id;
 
 	if (enable)
 		value |= BT_REDUCED_TX_POWER_BIT;
@@ -210,7 +208,7 @@ static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
 }
 
 struct iwl_bt_iterator_data {
-	struct iwl_bt_coex_profile_notif *notif;
+	struct iwl_bt_coex_prof_old_notif *notif;
 	struct iwl_mvm *mvm;
 	struct ieee80211_chanctx_conf *primary;
 	struct ieee80211_chanctx_conf *secondary;
@@ -221,15 +219,13 @@ struct iwl_bt_iterator_data {
 
 static inline
 void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
-				       struct ieee80211_vif *vif,
+				       struct iwl_mvm_vif_link_info *link_info,
 				       bool enable, int rssi)
 {
-	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
-
-	mvmvif->bf_data.last_bt_coex_event = rssi;
-	mvmvif->bf_data.bt_coex_max_thold =
+	link_info->bf_data.last_bt_coex_event = rssi;
+	link_info->bf_data.bt_coex_max_thold =
 		enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0;
-	mvmvif->bf_data.bt_coex_min_thold =
+	link_info->bf_data.bt_coex_min_thold =
 		enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0;
 }
 
@@ -257,33 +253,35 @@ static void iwl_mvm_bt_coex_tcm_based_ci(struct iwl_mvm *mvm,
 	swap(data->primary, data->secondary);
 }
 
-/* must be called under rcu_read_lock */
-static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
-				      struct ieee80211_vif *vif)
+static void iwl_mvm_bt_notif_per_link(struct iwl_mvm *mvm,
+				      struct ieee80211_vif *vif,
+				      struct iwl_bt_iterator_data *data,
+				      unsigned int link_id)
 {
-	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
-	struct iwl_bt_iterator_data *data = _data;
-	struct iwl_mvm *mvm = data->mvm;
-	struct ieee80211_chanctx_conf *chanctx_conf;
 	/* default smps_mode is AUTOMATIC - only used for client modes */
 	enum ieee80211_smps_mode smps_mode = IEEE80211_SMPS_AUTOMATIC;
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 	u32 bt_activity_grading, min_ag_for_static_smps;
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	struct iwl_mvm_vif_link_info *link_info;
+	struct ieee80211_bss_conf *link_conf;
 	int ave_rssi;
 
 	lockdep_assert_held(&mvm->mutex);
 
-	switch (vif->type) {
-	case NL80211_IFTYPE_STATION:
-		break;
-	case NL80211_IFTYPE_AP:
-		if (!mvmvif->ap_ibss_active)
-			return;
-		break;
-	default:
+	link_info = mvmvif->link[link_id];
+	if (!link_info)
 		return;
-	}
 
-	chanctx_conf = rcu_dereference(vif->bss_conf.chanctx_conf);
+	link_conf = rcu_dereference(vif->link_conf[link_id]);
+	/* This can happen due to races: if we receive the notification
+	 * and have the mutex held, while mac80211 is stuck on our mutex
+	 * in the middle of removing the link.
+	 */
+	if (!link_conf)
+		return;
+
+	chanctx_conf = rcu_dereference(link_conf->chanctx_conf);
 
 	/* If channel context is invalid or not on 2.4GHz .. */
 	if ((!chanctx_conf ||
@@ -291,10 +289,11 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 		if (vif->type == NL80211_IFTYPE_STATION) {
 			/* ... relax constraints and disable rssi events */
 			iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
-					    smps_mode);
-			iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
+					    smps_mode, link_id);
+			iwl_mvm_bt_coex_reduced_txp(mvm, link_info->ap_sta_id,
 						    false);
-			iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
+			iwl_mvm_bt_coex_enable_rssi_event(mvm, link_info, false,
+							  0);
 		}
 		return;
 	}
@@ -314,17 +313,18 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 	if (!vif->cfg.assoc)
 		smps_mode = IEEE80211_SMPS_AUTOMATIC;
 
-	if (mvmvif->phy_ctxt &&
-	    (mvm->last_bt_notif.rrc_status & BIT(mvmvif->phy_ctxt->id)))
+	if (link_info->phy_ctxt &&
+	    (mvm->last_bt_notif.rrc_status & BIT(link_info->phy_ctxt->id)))
 		smps_mode = IEEE80211_SMPS_AUTOMATIC;
 
 	IWL_DEBUG_COEX(data->mvm,
-		       "mac %d: bt_activity_grading %d smps_req %d\n",
-		       mvmvif->id, bt_activity_grading, smps_mode);
+		       "mac %d link %d: bt_activity_grading %d smps_req %d\n",
+		       mvmvif->id, link_info->fw_link_id,
+		       bt_activity_grading, smps_mode);
 
 	if (vif->type == NL80211_IFTYPE_STATION)
 		iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
-				    smps_mode);
+				    smps_mode, link_id);
 
 	/* low latency is always primary */
 	if (iwl_mvm_vif_low_latency(mvmvif)) {
@@ -353,6 +353,7 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 			data->secondary = chanctx_conf;
 		}
 
+		/* FIXME: TCM load per interface? or need something per link? */
 		if (data->primary == chanctx_conf)
 			data->primary_load = mvm->tcm.result.load[mvmvif->id];
 		else if (data->secondary == chanctx_conf)
@@ -370,6 +371,7 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 		/* if secondary is not NULL, it might be a GO */
 		data->secondary = chanctx_conf;
 
+	/* FIXME: TCM load per interface? or need something per link? */
 	if (data->primary == chanctx_conf)
 		data->primary_load = mvm->tcm.result.load[mvmvif->id];
 	else if (data->secondary == chanctx_conf)
@@ -377,34 +379,61 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 	/*
 	 * don't reduce the Tx power if one of these is true:
 	 *  we are in LOOSE
-	 *  single share antenna product
 	 *  BT is inactive
 	 *  we are not associated
 	 */
 	if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
-	    mvm->cfg->bt_shared_single_ant || !vif->cfg.assoc ||
-	    le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF) {
-		iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false);
-		iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
+	    le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF ||
+	    !vif->cfg.assoc) {
+		iwl_mvm_bt_coex_reduced_txp(mvm, link_info->ap_sta_id, false);
+		iwl_mvm_bt_coex_enable_rssi_event(mvm, link_info, false, 0);
 		return;
 	}
 
 	/* try to get the avg rssi from fw */
-	ave_rssi = mvmvif->bf_data.ave_beacon_signal;
+	ave_rssi = link_info->bf_data.ave_beacon_signal;
 
 	/* if the RSSI isn't valid, fake it is very low */
 	if (!ave_rssi)
 		ave_rssi = -100;
 	if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) {
-		if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
+		if (iwl_mvm_bt_coex_reduced_txp(mvm, link_info->ap_sta_id,
+						true))
 			IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 	} else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) {
-		if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
+		if (iwl_mvm_bt_coex_reduced_txp(mvm, link_info->ap_sta_id,
+						false))
 			IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
 	}
 
 	/* Begin to monitor the RSSI: it may influence the reduced Tx power */
-	iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
+	iwl_mvm_bt_coex_enable_rssi_event(mvm, link_info, true, ave_rssi);
+}
+
+/* must be called under rcu_read_lock */
+static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
+				      struct ieee80211_vif *vif)
+{
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	struct iwl_bt_iterator_data *data = _data;
+	struct iwl_mvm *mvm = data->mvm;
+	unsigned int link_id;
+
+	lockdep_assert_held(&mvm->mutex);
+
+	switch (vif->type) {
+	case NL80211_IFTYPE_STATION:
+		break;
+	case NL80211_IFTYPE_AP:
+		if (!mvmvif->ap_ibss_active)
+			return;
+		break;
+	default:
+		return;
+	}
+
+	for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++)
+		iwl_mvm_bt_notif_per_link(mvm, vif, data, link_id);
 }
 
 static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
@@ -425,6 +454,11 @@ static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
 					mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 					iwl_mvm_bt_notif_iterator, &data);
 
+	if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) {
+		rcu_read_unlock();
+		return;
+	}
+
 	iwl_mvm_bt_coex_tcm_based_ci(mvm, &data);
 
 	if (data.primary) {
@@ -484,11 +518,11 @@ static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
 	}
 }
 
-void iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
-			      struct iwl_rx_cmd_buffer *rxb)
+void iwl_mvm_rx_bt_coex_old_notif(struct iwl_mvm *mvm,
+				  struct iwl_rx_cmd_buffer *rxb)
 {
 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
-	struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data;
+	struct iwl_bt_coex_prof_old_notif *notif = (void *)pkt->data;
 
 	IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
 	IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
@@ -521,7 +555,7 @@ void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	 * Rssi update while not associated - can happen since the statistics
 	 * are handled asynchronously
 	 */
-	if (mvmvif->ap_sta_id == IWL_MVM_INVALID_STA)
+	if (mvmvif->deflink.ap_sta_id == IWL_INVALID_STA)
 		return;
 
 	/* No BT - reports should be disabled */
@@ -535,12 +569,15 @@ void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	 * Check if rssi is good enough for reduced Tx power, but not in loose
 	 * scheme.
 	 */
-	if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
+	if (rssi_event == RSSI_EVENT_LOW ||
 	    iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
-		ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
+		ret = iwl_mvm_bt_coex_reduced_txp(mvm,
+						  mvmvif->deflink.ap_sta_id,
 						  false);
 	else
-		ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
+		ret = iwl_mvm_bt_coex_reduced_txp(mvm,
+						  mvmvif->deflink.ap_sta_id,
+						  true);
 
 	if (ret)
 		IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
@@ -554,7 +591,7 @@ u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm,
 {
 	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
-	struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->phy_ctxt;
+	struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->deflink.phy_ctxt;
 	enum iwl_bt_coex_lut_type lut_type;
 
 	if (mvm->last_bt_notif.ttc_status & BIT(phy_ctxt->id))
@@ -578,7 +615,7 @@ bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
 {
 	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
-	struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->phy_ctxt;
+	struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->deflink.phy_ctxt;
 	enum iwl_bt_coex_lut_type lut_type;
 
 	if (mvm->last_bt_notif.ttc_status & BIT(phy_ctxt->id))
@@ -601,10 +638,6 @@ bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
 
 bool iwl_mvm_bt_coex_is_ant_avail(struct iwl_mvm *mvm, u8 ant)
 {
-	/* there is no other antenna, shared antenna is always available */
-	if (mvm->cfg->bt_shared_single_ant)
-		return true;
-
 	if (ant & mvm->cfg->non_shared_ant)
 		return true;
 
@@ -614,10 +647,6 @@ bool iwl_mvm_bt_coex_is_ant_avail(struct iwl_mvm *mvm, u8 ant)
 
 bool iwl_mvm_bt_coex_is_shared_ant_avail(struct iwl_mvm *mvm)
 {
-	/* there is no other antenna, shared antenna is always available */
-	if (mvm->cfg->bt_shared_single_ant)
-		return true;
-
 	return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < BT_HIGH_TRAFFIC;
 }