wifi: cfg80211: include puncturing bitmap in channel switch events

Add puncturing bitmap in channel switch notifications
and corresponding trace functions.
Signed-off-by: NAloka Dixit <quic_alokad@quicinc.com>
Link: https://lore.kernel.org/r/20230131001227.25014-4-quic_alokad@quicinc.com
[fix qtnfmac]
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

drivers/net/wireless/ath/ath6kl/cfg80211.c

@@ -1119,7 +1119,7 @@ void ath6kl_cfg80211_ch_switch_notify(struct ath6kl_vif *vif, int freq,
 					NL80211_CHAN_HT20 : NL80211_CHAN_NO_HT);
 
 	mutex_lock(&vif->wdev.mtx);
-	cfg80211_ch_switch_notify(vif->ndev, &chandef, 0);
+	cfg80211_ch_switch_notify(vif->ndev, &chandef, 0, 0);
 	mutex_unlock(&vif->wdev.mtx);
 }
 

drivers/net/wireless/marvell/mwifiex/11h.c

@@ -292,6 +292,6 @@ void mwifiex_dfs_chan_sw_work_queue(struct work_struct *work)
 	mwifiex_dbg(priv->adapter, MSG,
 		    "indicating channel switch completion to kernel\n");
 	mutex_lock(&priv->wdev.mtx);
-	cfg80211_ch_switch_notify(priv->netdev, &priv->dfs_chandef, 0);
+	cfg80211_ch_switch_notify(priv->netdev, &priv->dfs_chandef, 0, 0);
 	mutex_unlock(&priv->wdev.mtx);
 }

drivers/net/wireless/quantenna/qtnfmac/event.c

@@ -478,7 +478,7 @@ qtnf_event_handle_freq_change(struct qtnf_wmac *mac,
 			continue;
 
 		mutex_lock(&vif->wdev.mtx);
-		cfg80211_ch_switch_notify(vif->netdev, &chandef, 0);
+		cfg80211_ch_switch_notify(vif->netdev, &chandef, 0, 0);
 		mutex_unlock(&vif->wdev.mtx);
 	}
 

include/net/cfg80211.h

@@ -8326,13 +8326,14 @@ bool cfg80211_reg_can_beacon_relax(struct wiphy *wiphy,
  * @dev: the device which switched channels
  * @chandef: the new channel definition
  * @link_id: the link ID for MLO, must be 0 for non-MLO
+ * @punct_bitmap: the new puncturing bitmap
  *
  * Caller must acquire wdev_lock, therefore must only be called from sleepable
  * driver context!
  */
 void cfg80211_ch_switch_notify(struct net_device *dev,
 			       struct cfg80211_chan_def *chandef,
-			       unsigned int link_id);
+			       unsigned int link_id, u16 punct_bitmap);
 
 /*
  * cfg80211_ch_switch_started_notify - notify channel switch start
@@ -8341,6 +8342,7 @@ void cfg80211_ch_switch_notify(struct net_device *dev,
  * @link_id: the link ID for MLO, must be 0 for non-MLO
  * @count: the number of TBTTs until the channel switch happens
  * @quiet: whether or not immediate quiet was requested by the AP
+ * @punct_bitmap: the future puncturing bitmap
  *
  * Inform the userspace about the channel switch that has just
  * started, so that it can take appropriate actions (eg. starting
@@ -8349,7 +8351,7 @@ void cfg80211_ch_switch_notify(struct net_device *dev,
 void cfg80211_ch_switch_started_notify(struct net_device *dev,
 				       struct cfg80211_chan_def *chandef,
 				       unsigned int link_id, u8 count,
-				       bool quiet);
+				       bool quiet, u16 punct_bitmap);
 
 /**
  * ieee80211_operating_class_to_band - convert operating class to band

net/mac80211/cfg.c

@@ -3587,7 +3587,8 @@ static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
 	if (err)
 		return err;
 
-	cfg80211_ch_switch_notify(sdata->dev, &sdata->deflink.csa_chandef, 0);
+	cfg80211_ch_switch_notify(sdata->dev, &sdata->deflink.csa_chandef, 0,
+				  0);
 
 	return 0;
 }
@@ -3859,7 +3860,7 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
 
 	cfg80211_ch_switch_started_notify(sdata->dev,
 					  &sdata->deflink.csa_chandef, 0,
-					  params->count, params->block_tx);
+					  params->count, params->block_tx, 0);
 
 	if (changed) {
 		ieee80211_link_info_change_notify(sdata, &sdata->deflink,

net/mac80211/mlme.c

@@ -1778,7 +1778,7 @@ static void ieee80211_chswitch_post_beacon(struct ieee80211_link_data *link)
 		return;
 	}
 
-	cfg80211_ch_switch_notify(sdata->dev, &link->reserved_chandef, 0);
+	cfg80211_ch_switch_notify(sdata->dev, &link->reserved_chandef, 0, 0);
 }
 
 void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success)
@@ -1988,7 +1988,7 @@ ieee80211_sta_process_chanswitch(struct ieee80211_link_data *link,
 	mutex_unlock(&local->mtx);
 
 	cfg80211_ch_switch_started_notify(sdata->dev, &csa_ie.chandef, 0,
-					  csa_ie.count, csa_ie.mode);
+					  csa_ie.count, csa_ie.mode, 0);
 
 	if (local->ops->channel_switch) {
 		/* use driver's channel switch callback */

net/wireless/nl80211.c

@@ -19045,7 +19045,7 @@ static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
 				     struct cfg80211_chan_def *chandef,
 				     gfp_t gfp,
 				     enum nl80211_commands notif,
-				     u8 count, bool quiet)
+				     u8 count, bool quiet, u16 punct_bitmap)
 {
 	struct wireless_dev *wdev = netdev->ieee80211_ptr;
 	struct sk_buff *msg;
@@ -19079,6 +19079,9 @@ static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
 			goto nla_put_failure;
 	}
 
+	if (nla_put_u32(msg, NL80211_ATTR_PUNCT_BITMAP, punct_bitmap))
+		goto nla_put_failure;
+
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
@@ -19091,7 +19094,7 @@ static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
 
 void cfg80211_ch_switch_notify(struct net_device *dev,
 			       struct cfg80211_chan_def *chandef,
-			       unsigned int link_id)
+			       unsigned int link_id, u16 punct_bitmap)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct wiphy *wiphy = wdev->wiphy;
@@ -19100,7 +19103,7 @@ void cfg80211_ch_switch_notify(struct net_device *dev,
 	ASSERT_WDEV_LOCK(wdev);
 	WARN_INVALID_LINK_ID(wdev, link_id);
 
-	trace_cfg80211_ch_switch_notify(dev, chandef, link_id);
+	trace_cfg80211_ch_switch_notify(dev, chandef, link_id, punct_bitmap);
 
 	switch (wdev->iftype) {
 	case NL80211_IFTYPE_STATION:
@@ -19128,14 +19131,15 @@ void cfg80211_ch_switch_notify(struct net_device *dev,
 	cfg80211_sched_dfs_chan_update(rdev);
 
 	nl80211_ch_switch_notify(rdev, dev, link_id, chandef, GFP_KERNEL,
-				 NL80211_CMD_CH_SWITCH_NOTIFY, 0, false);
+				 NL80211_CMD_CH_SWITCH_NOTIFY, 0, false,
+				 punct_bitmap);
 }
 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
 
 void cfg80211_ch_switch_started_notify(struct net_device *dev,
 				       struct cfg80211_chan_def *chandef,
 				       unsigned int link_id, u8 count,
-				       bool quiet)
+				       bool quiet, u16 punct_bitmap)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct wiphy *wiphy = wdev->wiphy;
@@ -19144,11 +19148,13 @@ void cfg80211_ch_switch_started_notify(struct net_device *dev,
 	ASSERT_WDEV_LOCK(wdev);
 	WARN_INVALID_LINK_ID(wdev, link_id);
 
-	trace_cfg80211_ch_switch_started_notify(dev, chandef, link_id);
+	trace_cfg80211_ch_switch_started_notify(dev, chandef, link_id,
+						punct_bitmap);
+
 
 	nl80211_ch_switch_notify(rdev, dev, link_id, chandef, GFP_KERNEL,
 				 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY,
-				 count, quiet);
+				 count, quiet, punct_bitmap);
 }
 EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
 

net/wireless/trace.h

@@ -3244,39 +3244,47 @@ TRACE_EVENT(cfg80211_chandef_dfs_required,
 TRACE_EVENT(cfg80211_ch_switch_notify,
 	TP_PROTO(struct net_device *netdev,
 		 struct cfg80211_chan_def *chandef,
-		 unsigned int link_id),
-	TP_ARGS(netdev, chandef, link_id),
+		 unsigned int link_id,
+		 u16 punct_bitmap),
+	TP_ARGS(netdev, chandef, link_id, punct_bitmap),
 	TP_STRUCT__entry(
 		NETDEV_ENTRY
 		CHAN_DEF_ENTRY
 		__field(unsigned int, link_id)
+		__field(u16, punct_bitmap)
 	),
 	TP_fast_assign(
 		NETDEV_ASSIGN;
 		CHAN_DEF_ASSIGN(chandef);
 		__entry->link_id = link_id;
+		__entry->punct_bitmap = punct_bitmap;
 	),
-	TP_printk(NETDEV_PR_FMT ", " CHAN_DEF_PR_FMT ", link:%d",
-		  NETDEV_PR_ARG, CHAN_DEF_PR_ARG, __entry->link_id)
+	TP_printk(NETDEV_PR_FMT ", " CHAN_DEF_PR_FMT ", link:%d, punct_bitmap:%u",
+		  NETDEV_PR_ARG, CHAN_DEF_PR_ARG, __entry->link_id,
+		  __entry->punct_bitmap)
 );
 
 TRACE_EVENT(cfg80211_ch_switch_started_notify,
 	TP_PROTO(struct net_device *netdev,
 		 struct cfg80211_chan_def *chandef,
-		 unsigned int link_id),
-	TP_ARGS(netdev, chandef, link_id),
+		 unsigned int link_id,
+		 u16 punct_bitmap),
+	TP_ARGS(netdev, chandef, link_id, punct_bitmap),
 	TP_STRUCT__entry(
 		NETDEV_ENTRY
 		CHAN_DEF_ENTRY
 		__field(unsigned int, link_id)
+		__field(u16, punct_bitmap)
 	),
 	TP_fast_assign(
 		NETDEV_ASSIGN;
 		CHAN_DEF_ASSIGN(chandef);
 		__entry->link_id = link_id;
+		__entry->punct_bitmap = punct_bitmap;
 	),
-	TP_printk(NETDEV_PR_FMT ", " CHAN_DEF_PR_FMT ", link:%d",
-		  NETDEV_PR_ARG, CHAN_DEF_PR_ARG, __entry->link_id)
+	TP_printk(NETDEV_PR_FMT ", " CHAN_DEF_PR_FMT ", link:%d, punct_bitmap:%u",
+		  NETDEV_PR_ARG, CHAN_DEF_PR_ARG, __entry->link_id,
+		  __entry->punct_bitmap)
 );
 
 TRACE_EVENT(cfg80211_radar_event,