1 files changed, 94 insertions, 25 deletions

diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index b13446a..020a94a 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -3,6 +3,7 @@
 
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
+#include "driver-trace.h"
 
 static inline int drv_tx(struct ieee80211_local *local, struct sk_buff *skb)
 {
@@ -11,29 +12,49 @@ static inline int drv_tx(struct ieee80211_local *local, struct sk_buff *skb)
 
 static inline int drv_start(struct ieee80211_local *local)
 {
-	return local->ops->start(&local->hw);
+	int ret;
+
+	local->started = true;
+	smp_mb();
+	ret = local->ops->start(&local->hw);
+	trace_drv_start(local, ret);
+	return ret;
 }
 
 static inline void drv_stop(struct ieee80211_local *local)
 {
 	local->ops->stop(&local->hw);
+	trace_drv_stop(local);
+
+	/* sync away all work on the tasklet before clearing started */
+	tasklet_disable(&local->tasklet);
+	tasklet_enable(&local->tasklet);
+
+	barrier();
+
+	local->started = false;
 }
 
 static inline int drv_add_interface(struct ieee80211_local *local,
 				    struct ieee80211_if_init_conf *conf)
 {
-	return local->ops->add_interface(&local->hw, conf);
+	int ret = local->ops->add_interface(&local->hw, conf);
+	trace_drv_add_interface(local, conf->mac_addr, conf->vif, ret);
+	return ret;
 }
 
 static inline void drv_remove_interface(struct ieee80211_local *local,
 					struct ieee80211_if_init_conf *conf)
 {
 	local->ops->remove_interface(&local->hw, conf);
+	trace_drv_remove_interface(local, conf->mac_addr, conf->vif);
 }
 
 static inline int drv_config(struct ieee80211_local *local, u32 changed)
 {
-	return local->ops->config(&local->hw, changed);
+	int ret = local->ops->config(&local->hw, changed);
+	trace_drv_config(local, changed, ret);
+	return ret;
 }
 
 static inline void drv_bss_info_changed(struct ieee80211_local *local,
@@ -43,24 +64,45 @@ static inline void drv_bss_info_changed(struct ieee80211_local *local,
 {
 	if (local->ops->bss_info_changed)
 		local->ops->bss_info_changed(&local->hw, vif, info, changed);
+	trace_drv_bss_info_changed(local, vif, info, changed);
+}
+
+static inline u64 drv_prepare_multicast(struct ieee80211_local *local,
+					int mc_count,
+					struct dev_addr_list *mc_list)
+{
+	u64 ret = 0;
+
+	if (local->ops->prepare_multicast)
+		ret = local->ops->prepare_multicast(&local->hw, mc_count,
+						    mc_list);
+
+	trace_drv_prepare_multicast(local, mc_count, ret);
+
+	return ret;
 }
 
 static inline void drv_configure_filter(struct ieee80211_local *local,
 					unsigned int changed_flags,
 					unsigned int *total_flags,
-					int mc_count,
-					struct dev_addr_list *mc_list)
+					u64 multicast)
 {
+	might_sleep();
+
 	local->ops->configure_filter(&local->hw, changed_flags, total_flags,
-				     mc_count, mc_list);
+				     multicast);
+	trace_drv_configure_filter(local, changed_flags, total_flags,
+				   multicast);
 }
 
 static inline int drv_set_tim(struct ieee80211_local *local,
 			      struct ieee80211_sta *sta, bool set)
 {
+	int ret = 0;
 	if (local->ops->set_tim)
-		return local->ops->set_tim(&local->hw, sta, set);
-	return 0;
+		ret = local->ops->set_tim(&local->hw, sta, set);
+	trace_drv_set_tim(local, sta, set, ret);
+	return ret;
 }
 
 static inline int drv_set_key(struct ieee80211_local *local,
@@ -68,7 +110,9 @@ static inline int drv_set_key(struct ieee80211_local *local,
 			      struct ieee80211_sta *sta,
 			      struct ieee80211_key_conf *key)
 {
-	return local->ops->set_key(&local->hw, cmd, vif, sta, key);
+	int ret = local->ops->set_key(&local->hw, cmd, vif, sta, key);
+	trace_drv_set_key(local, cmd, vif, sta, key, ret);
+	return ret;
 }
 
 static inline void drv_update_tkip_key(struct ieee80211_local *local,
@@ -79,32 +123,41 @@ static inline void drv_update_tkip_key(struct ieee80211_local *local,
 	if (local->ops->update_tkip_key)
 		local->ops->update_tkip_key(&local->hw, conf, address,
 					    iv32, phase1key);
+	trace_drv_update_tkip_key(local, conf, address, iv32);
 }
 
 static inline int drv_hw_scan(struct ieee80211_local *local,
 			      struct cfg80211_scan_request *req)
 {
-	return local->ops->hw_scan(&local->hw, req);
+	int ret = local->ops->hw_scan(&local->hw, req);
+	trace_drv_hw_scan(local, req, ret);
+	return ret;
 }
 
 static inline void drv_sw_scan_start(struct ieee80211_local *local)
 {
 	if (local->ops->sw_scan_start)
 		local->ops->sw_scan_start(&local->hw);
+	trace_drv_sw_scan_start(local);
 }
 
 static inline void drv_sw_scan_complete(struct ieee80211_local *local)
 {
 	if (local->ops->sw_scan_complete)
 		local->ops->sw_scan_complete(&local->hw);
+	trace_drv_sw_scan_complete(local);
 }
 
 static inline int drv_get_stats(struct ieee80211_local *local,
 				struct ieee80211_low_level_stats *stats)
 {
-	if (!local->ops->get_stats)
-		return -EOPNOTSUPP;
-	return local->ops->get_stats(&local->hw, stats);
+	int ret = -EOPNOTSUPP;
+
+	if (local->ops->get_stats)
+		ret = local->ops->get_stats(&local->hw, stats);
+	trace_drv_get_stats(local, stats, ret);
+
+	return ret;
 }
 
 static inline void drv_get_tkip_seq(struct ieee80211_local *local,
@@ -112,14 +165,17 @@ static inline void drv_get_tkip_seq(struct ieee80211_local *local,
 {
 	if (local->ops->get_tkip_seq)
 		local->ops->get_tkip_seq(&local->hw, hw_key_idx, iv32, iv16);
+	trace_drv_get_tkip_seq(local, hw_key_idx, iv32, iv16);
 }
 
 static inline int drv_set_rts_threshold(struct ieee80211_local *local,
 					u32 value)
 {
+	int ret = 0;
 	if (local->ops->set_rts_threshold)
-		return local->ops->set_rts_threshold(&local->hw, value);
-	return 0;
+		ret = local->ops->set_rts_threshold(&local->hw, value);
+	trace_drv_set_rts_threshold(local, value, ret);
+	return ret;
 }
 
 static inline void drv_sta_notify(struct ieee80211_local *local,
@@ -129,46 +185,57 @@ static inline void drv_sta_notify(struct ieee80211_local *local,
 {
 	if (local->ops->sta_notify)
 		local->ops->sta_notify(&local->hw, vif, cmd, sta);
+	trace_drv_sta_notify(local, vif, cmd, sta);
 }
 
 static inline int drv_conf_tx(struct ieee80211_local *local, u16 queue,
 			      const struct ieee80211_tx_queue_params *params)
 {
+	int ret = -EOPNOTSUPP;
 	if (local->ops->conf_tx)
-		return local->ops->conf_tx(&local->hw, queue, params);
-	return -EOPNOTSUPP;
+		ret = local->ops->conf_tx(&local->hw, queue, params);
+	trace_drv_conf_tx(local, queue, params, ret);
+	return ret;
 }
 
 static inline int drv_get_tx_stats(struct ieee80211_local *local,
 				   struct ieee80211_tx_queue_stats *stats)
 {
-	return local->ops->get_tx_stats(&local->hw, stats);
+	int ret = local->ops->get_tx_stats(&local->hw, stats);
+	trace_drv_get_tx_stats(local, stats, ret);
+	return ret;
 }
 
 static inline u64 drv_get_tsf(struct ieee80211_local *local)
 {
+	u64 ret = -1ULL;
 	if (local->ops->get_tsf)
-		return local->ops->get_tsf(&local->hw);
-	return -1ULL;
+		ret = local->ops->get_tsf(&local->hw);
+	trace_drv_get_tsf(local, ret);
+	return ret;
 }
 
 static inline void drv_set_tsf(struct ieee80211_local *local, u64 tsf)
 {
 	if (local->ops->set_tsf)
 		local->ops->set_tsf(&local->hw, tsf);
+	trace_drv_set_tsf(local, tsf);
 }
 
 static inline void drv_reset_tsf(struct ieee80211_local *local)
 {
 	if (local->ops->reset_tsf)
 		local->ops->reset_tsf(&local->hw);
+	trace_drv_reset_tsf(local);
 }
 
 static inline int drv_tx_last_beacon(struct ieee80211_local *local)
 {
+	int ret = 1;
 	if (local->ops->tx_last_beacon)
-		return local->ops->tx_last_beacon(&local->hw);
-	return 1;
+		ret = local->ops->tx_last_beacon(&local->hw);
+	trace_drv_tx_last_beacon(local, ret);
+	return ret;
 }
 
 static inline int drv_ampdu_action(struct ieee80211_local *local,
@@ -176,10 +243,12 @@ static inline int drv_ampdu_action(struct ieee80211_local *local,
 				   struct ieee80211_sta *sta, u16 tid,
 				   u16 *ssn)
 {
+	int ret = -EOPNOTSUPP;
 	if (local->ops->ampdu_action)
-		return local->ops->ampdu_action(&local->hw, action,
-						sta, tid, ssn);
-	return -EOPNOTSUPP;
+		ret = local->ops->ampdu_action(&local->hw, action,
+					       sta, tid, ssn);
+	trace_drv_ampdu_action(local, action, sta, tid, ssn, ret);
+	return ret;
 }