wifi: mac80211: pass the link id in start/stop ap

In start_ap and stop_ap mac80211 callbacks pass the link_id
to the drivers.
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c

@@ -2396,7 +2396,8 @@ static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
 }
 
 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
-				 struct ieee80211_vif *vif)
+				 struct ieee80211_vif *vif,
+				 unsigned int link_id)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
@@ -2522,8 +2523,22 @@ static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
 	return ret;
 }
 
+static int iwl_mvm_start_ap(struct ieee80211_hw *hw,
+			    struct ieee80211_vif *vif,
+			    unsigned int link_id)
+{
+	return iwl_mvm_start_ap_ibss(hw, vif, link_id);
+}
+
+static int iwl_mvm_start_ibss(struct ieee80211_hw *hw,
+			      struct ieee80211_vif *vif)
+{
+	return iwl_mvm_start_ap_ibss(hw, vif, 0);
+}
+
 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
-				 struct ieee80211_vif *vif)
+				 struct ieee80211_vif *vif,
+				 unsigned int link_id)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
@@ -2586,6 +2601,19 @@ static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
 	mutex_unlock(&mvm->mutex);
 }
 
+static void iwl_mvm_stop_ap(struct ieee80211_hw *hw,
+			    struct ieee80211_vif *vif,
+			    unsigned int link_id)
+{
+	iwl_mvm_stop_ap_ibss(hw, vif, link_id);
+}
+
+static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw,
+			      struct ieee80211_vif *vif)
+{
+	iwl_mvm_stop_ap_ibss(hw, vif, 0);
+}
+
 static void
 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
 				 struct ieee80211_vif *vif,
@@ -5408,10 +5436,10 @@ const struct ieee80211_ops iwl_mvm_hw_ops = {
 	.unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
 	.switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
 
-	.start_ap = iwl_mvm_start_ap_ibss,
-	.stop_ap = iwl_mvm_stop_ap_ibss,
-	.join_ibss = iwl_mvm_start_ap_ibss,
-	.leave_ibss = iwl_mvm_stop_ap_ibss,
+	.start_ap = iwl_mvm_start_ap,
+	.stop_ap = iwl_mvm_stop_ap,
+	.join_ibss = iwl_mvm_start_ibss,
+	.leave_ibss = iwl_mvm_stop_ibss,
 
 	.tx_last_beacon = iwl_mvm_tx_last_beacon,
 

drivers/net/wireless/realtek/rtw88/mac80211.c

@@ -429,7 +429,8 @@ static void rtw_ops_bss_info_changed(struct ieee80211_hw *hw,
 	mutex_unlock(&rtwdev->mutex);
 }
 
-static int rtw_ops_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+static int rtw_ops_start_ap(struct ieee80211_hw *hw,
+			    struct ieee80211_vif *vif, unsigned int link_id)
 {
 	struct rtw_dev *rtwdev = hw->priv;
 	struct rtw_chip_info *chip = rtwdev->chip;

drivers/net/wireless/realtek/rtw89/mac80211.c

@@ -381,7 +381,8 @@ static void rtw89_ops_bss_info_changed(struct ieee80211_hw *hw,
 	mutex_unlock(&rtwdev->mutex);
 }
 
-static int rtw89_ops_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+static int rtw89_ops_start_ap(struct ieee80211_hw *hw,
+			      struct ieee80211_vif *vif, unsigned int link_id)
 {
 	struct rtw89_dev *rtwdev = hw->priv;
 	struct rtw89_vif *rtwvif = (struct rtw89_vif *)vif->drv_priv;
@@ -401,7 +402,8 @@ static int rtw89_ops_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif
 }
 
 static
-void rtw89_ops_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+void rtw89_ops_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+		       unsigned int link_id)
 {
 	struct rtw89_dev *rtwdev = hw->priv;
 	struct rtw89_vif *rtwvif = (struct rtw89_vif *)vif->drv_priv;

drivers/net/wireless/silabs/wfx/sta.c

@@ -378,7 +378,8 @@ static void wfx_set_mfp_ap(struct wfx_vif *wvif)
 	}
 }
 
-int wfx_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+int wfx_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+		 unsigned int link_id)
 {
 	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
 	struct wfx_dev *wdev = wvif->wdev;
@@ -396,7 +397,8 @@ int wfx_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 	return ret;
 }
 
-void wfx_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+void wfx_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+		 unsigned int link_id)
 {
 	struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
 

drivers/net/wireless/silabs/wfx/sta.h

@@ -29,8 +29,10 @@ void wfx_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
 
 int wfx_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
 void wfx_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
-int wfx_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
-void wfx_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
+int wfx_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+		 unsigned int link_id);
+void wfx_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+		 unsigned int link_id);
 int wfx_join_ibss(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
 void wfx_leave_ibss(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
 int wfx_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,

include/net/mac80211.h

@@ -4084,8 +4084,10 @@ struct ieee80211_ops {
 				  struct ieee80211_vif *vif,
 				  unsigned int link_id, u64 changed);
 
-	int (*start_ap)(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
-	void (*stop_ap)(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
+	int (*start_ap)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+			unsigned int link_id);
+	void (*stop_ap)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+			unsigned int link_id);
 
 	u64 (*prepare_multicast)(struct ieee80211_hw *hw,
 				 struct netdev_hw_addr_list *mc_list);

net/mac80211/cfg.c

@@ -1287,7 +1287,7 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 		changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP;
 	}
 
-	err = drv_start_ap(sdata->local, sdata);
+	err = drv_start_ap(sdata->local, sdata, link_id);
 	if (err) {
 		old = sdata_dereference(link->u.ap.beacon, sdata);
 
@@ -1442,7 +1442,7 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
 				   GFP_KERNEL);
 	}
 
-	drv_stop_ap(sdata->local, sdata);
+	drv_stop_ap(sdata->local, sdata, link_id);
 
 	/* free all potentially still buffered bcast frames */
 	local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);

net/mac80211/driver-ops.h

@@ -985,7 +985,8 @@ int drv_switch_vif_chanctx(struct ieee80211_local *local,
 			   int n_vifs, enum ieee80211_chanctx_switch_mode mode);
 
 static inline int drv_start_ap(struct ieee80211_local *local,
-			       struct ieee80211_sub_if_data *sdata)
+			       struct ieee80211_sub_if_data *sdata,
+			       unsigned int link_id)
 {
 	int ret = 0;
 
@@ -994,22 +995,24 @@ static inline int drv_start_ap(struct ieee80211_local *local,
 	if (!check_sdata_in_driver(sdata))
 		return -EIO;
 
-	trace_drv_start_ap(local, sdata, &sdata->vif.bss_conf);
+	trace_drv_start_ap(local, sdata, sdata->vif.link_conf[link_id],
+			   link_id);
 	if (local->ops->start_ap)
-		ret = local->ops->start_ap(&local->hw, &sdata->vif);
+		ret = local->ops->start_ap(&local->hw, &sdata->vif, link_id);
 	trace_drv_return_int(local, ret);
 	return ret;
 }
 
 static inline void drv_stop_ap(struct ieee80211_local *local,
-			       struct ieee80211_sub_if_data *sdata)
+			       struct ieee80211_sub_if_data *sdata,
+			       unsigned int link_id)
 {
 	if (!check_sdata_in_driver(sdata))
 		return;
 
-	trace_drv_stop_ap(local, sdata);
+	trace_drv_stop_ap(local, sdata, link_id);
 	if (local->ops->stop_ap)
-		local->ops->stop_ap(&local->hw, &sdata->vif);
+		local->ops->stop_ap(&local->hw, &sdata->vif, link_id);
 	trace_drv_return_void(local);
 }
 

net/mac80211/trace.h

@@ -1752,13 +1752,15 @@ DEFINE_EVENT(local_sdata_chanctx, drv_unassign_vif_chanctx,
 TRACE_EVENT(drv_start_ap,
 	TP_PROTO(struct ieee80211_local *local,
 		 struct ieee80211_sub_if_data *sdata,
-		 struct ieee80211_bss_conf *info),
+		 struct ieee80211_bss_conf *info,
+		 unsigned int link_id),
 
-	TP_ARGS(local, sdata, info),
+	TP_ARGS(local, sdata, info, link_id),
 
 	TP_STRUCT__entry(
 		LOCAL_ENTRY
 		VIF_ENTRY
+		__field(u32, link_id)
 		__field(u8, dtimper)
 		__field(u16, bcnint)
 		__dynamic_array(u8, ssid, sdata->vif.cfg.ssid_len)
@@ -1768,6 +1770,7 @@ TRACE_EVENT(drv_start_ap,
 	TP_fast_assign(
 		LOCAL_ASSIGN;
 		VIF_ASSIGN;
+		__entry->link_id = link_id;
 		__entry->dtimper = info->dtim_period;
 		__entry->bcnint = info->beacon_int;
 		memcpy(__get_dynamic_array(ssid),
@@ -1777,15 +1780,34 @@ TRACE_EVENT(drv_start_ap,
 	),
 
 	TP_printk(
-		LOCAL_PR_FMT  VIF_PR_FMT,
-		LOCAL_PR_ARG, VIF_PR_ARG
+		LOCAL_PR_FMT  VIF_PR_FMT " link id %u",
+		LOCAL_PR_ARG, VIF_PR_ARG, __entry->link_id
 	)
 );
 
-DEFINE_EVENT(local_sdata_evt, drv_stop_ap,
+TRACE_EVENT(drv_stop_ap,
 	TP_PROTO(struct ieee80211_local *local,
-		 struct ieee80211_sub_if_data *sdata),
-	TP_ARGS(local, sdata)
+		 struct ieee80211_sub_if_data *sdata,
+		 unsigned int link_id),
+
+	TP_ARGS(local, sdata, link_id),
+
+	TP_STRUCT__entry(
+		LOCAL_ENTRY
+		VIF_ENTRY
+		__field(u32, link_id)
+	),
+
+	TP_fast_assign(
+		LOCAL_ASSIGN;
+		VIF_ASSIGN;
+		__entry->link_id = link_id;
+	),
+
+	TP_printk(
+		LOCAL_PR_FMT  VIF_PR_FMT " link id %u",
+		LOCAL_PR_ARG, VIF_PR_ARG, __entry->link_id
+	)
 );
 
 TRACE_EVENT(drv_reconfig_complete,

net/mac80211/util.c

@@ -2568,7 +2568,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 				changed |= BSS_CHANGED_AP_PROBE_RESP;
 
 				if (rcu_access_pointer(sdata->deflink.u.ap.beacon))
-					drv_start_ap(local, sdata);
+					drv_start_ap(local, sdata, 0);
 			}
 			fallthrough;
 		case NL80211_IFTYPE_MESH_POINT: