diff options
Diffstat (limited to 'net/mac80211')
-rw-r--r-- | net/mac80211/Kconfig | 8 | ||||
-rw-r--r-- | net/mac80211/agg-tx.c | 8 | ||||
-rw-r--r-- | net/mac80211/driver-trace.h | 275 | ||||
-rw-r--r-- | net/mac80211/main.c | 2 | ||||
-rw-r--r-- | net/mac80211/mlme.c | 6 | ||||
-rw-r--r-- | net/mac80211/scan.c | 2 | ||||
-rw-r--r-- | net/mac80211/sta_info.c | 2 | ||||
-rw-r--r-- | net/mac80211/util.c | 4 |
8 files changed, 303 insertions, 4 deletions
diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig index 334c359..8a91f6c 100644 --- a/net/mac80211/Kconfig +++ b/net/mac80211/Kconfig @@ -221,8 +221,8 @@ config MAC80211_DRIVER_API_TRACER depends on EVENT_TRACING help Say Y here to make mac80211 register with the ftrace - framework for the driver API -- you can see which - driver methods it is calling then by looking at the - trace. + framework for the driver API -- you can then see which + driver methods it is calling and which API functions + drivers are calling by looking at the trace. - If unsure, say N. + If unsure, say Y. diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c index 32d2148..6bb4d0a 100644 --- a/net/mac80211/agg-tx.c +++ b/net/mac80211/agg-tx.c @@ -214,6 +214,8 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid) int ret = 0; u16 start_seq_num; + trace_api_start_tx_ba_session(pubsta, tid); + if (WARN_ON(!local->ops->ampdu_action)) return -EINVAL; @@ -440,6 +442,8 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid) struct sta_info *sta; u8 *state; + trace_api_start_tx_ba_cb(sdata, ra, tid); + if (tid >= STA_TID_NUM) { #ifdef CONFIG_MAC80211_HT_DEBUG printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n", @@ -541,6 +545,8 @@ int ieee80211_stop_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, struct ieee80211_sub_if_data *sdata = sta->sdata; struct ieee80211_local *local = sdata->local; + trace_api_stop_tx_ba_session(pubsta, tid, initiator); + if (!local->ops->ampdu_action) return -EINVAL; @@ -558,6 +564,8 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid) struct sta_info *sta; u8 *state; + trace_api_stop_tx_ba_cb(sdata, ra, tid); + if (tid >= STA_TID_NUM) { #ifdef CONFIG_MAC80211_HT_DEBUG printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n", diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h index 41baf73..e209cb82 100644 --- a/net/mac80211/driver-trace.h +++ b/net/mac80211/driver-trace.h @@ -32,6 +32,10 @@ static inline void trace_ ## name(proto) {} #define VIF_PR_FMT " vif:%s(%d)" #define VIF_PR_ARG __get_str(vif_name), __entry->vif_type +/* + * Tracing for driver callbacks. + */ + TRACE_EVENT(drv_start, TP_PROTO(struct ieee80211_local *local, int ret), @@ -766,6 +770,277 @@ TRACE_EVENT(drv_flush, LOCAL_PR_ARG, __entry->drop ) ); + +/* + * Tracing for API calls that drivers call. + */ + +TRACE_EVENT(api_start_tx_ba_session, + TP_PROTO(struct ieee80211_sta *sta, u16 tid), + + TP_ARGS(sta, tid), + + TP_STRUCT__entry( + STA_ENTRY + __field(u16, tid) + ), + + TP_fast_assign( + STA_ASSIGN; + __entry->tid = tid; + ), + + TP_printk( + STA_PR_FMT " tid:%d", + STA_PR_ARG, __entry->tid + ) +); + +TRACE_EVENT(api_start_tx_ba_cb, + TP_PROTO(struct ieee80211_sub_if_data *sdata, const u8 *ra, u16 tid), + + TP_ARGS(sdata, ra, tid), + + TP_STRUCT__entry( + VIF_ENTRY + __array(u8, ra, ETH_ALEN) + __field(u16, tid) + ), + + TP_fast_assign( + VIF_ASSIGN; + memcpy(__entry->ra, ra, ETH_ALEN); + __entry->tid = tid; + ), + + TP_printk( + VIF_PR_FMT " ra:%pM tid:%d", + VIF_PR_ARG, __entry->ra, __entry->tid + ) +); + +TRACE_EVENT(api_stop_tx_ba_session, + TP_PROTO(struct ieee80211_sta *sta, u16 tid, u16 initiator), + + TP_ARGS(sta, tid, initiator), + + TP_STRUCT__entry( + STA_ENTRY + __field(u16, tid) + __field(u16, initiator) + ), + + TP_fast_assign( + STA_ASSIGN; + __entry->tid = tid; + __entry->initiator = initiator; + ), + + TP_printk( + STA_PR_FMT " tid:%d initiator:%d", + STA_PR_ARG, __entry->tid, __entry->initiator + ) +); + +TRACE_EVENT(api_stop_tx_ba_cb, + TP_PROTO(struct ieee80211_sub_if_data *sdata, const u8 *ra, u16 tid), + + TP_ARGS(sdata, ra, tid), + + TP_STRUCT__entry( + VIF_ENTRY + __array(u8, ra, ETH_ALEN) + __field(u16, tid) + ), + + TP_fast_assign( + VIF_ASSIGN; + memcpy(__entry->ra, ra, ETH_ALEN); + __entry->tid = tid; + ), + + TP_printk( + VIF_PR_FMT " ra:%pM tid:%d", + VIF_PR_ARG, __entry->ra, __entry->tid + ) +); + +TRACE_EVENT(api_restart_hw, + TP_PROTO(struct ieee80211_local *local), + + TP_ARGS(local), + + TP_STRUCT__entry( + LOCAL_ENTRY + ), + + TP_fast_assign( + LOCAL_ASSIGN; + ), + + TP_printk( + LOCAL_PR_FMT, + LOCAL_PR_ARG + ) +); + +TRACE_EVENT(api_beacon_loss, + TP_PROTO(struct ieee80211_sub_if_data *sdata), + + TP_ARGS(sdata), + + TP_STRUCT__entry( + VIF_ENTRY + ), + + TP_fast_assign( + VIF_ASSIGN; + ), + + TP_printk( + VIF_PR_FMT, + VIF_PR_ARG + ) +); + +TRACE_EVENT(api_connection_loss, + TP_PROTO(struct ieee80211_sub_if_data *sdata), + + TP_ARGS(sdata), + + TP_STRUCT__entry( + VIF_ENTRY + ), + + TP_fast_assign( + VIF_ASSIGN; + ), + + TP_printk( + VIF_PR_FMT, + VIF_PR_ARG + ) +); + +TRACE_EVENT(api_cqm_rssi_notify, + TP_PROTO(struct ieee80211_sub_if_data *sdata, + enum nl80211_cqm_rssi_threshold_event rssi_event), + + TP_ARGS(sdata, rssi_event), + + TP_STRUCT__entry( + VIF_ENTRY + __field(u32, rssi_event) + ), + + TP_fast_assign( + VIF_ASSIGN; + __entry->rssi_event = rssi_event; + ), + + TP_printk( + VIF_PR_FMT " event:%d", + VIF_PR_ARG, __entry->rssi_event + ) +); + +TRACE_EVENT(api_scan_completed, + TP_PROTO(struct ieee80211_local *local, bool aborted), + + TP_ARGS(local, aborted), + + TP_STRUCT__entry( + LOCAL_ENTRY + __field(bool, aborted) + ), + + TP_fast_assign( + LOCAL_ASSIGN; + __entry->aborted = aborted; + ), + + TP_printk( + LOCAL_PR_FMT " aborted:%d", + LOCAL_PR_ARG, __entry->aborted + ) +); + +TRACE_EVENT(api_sta_block_awake, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sta *sta, bool block), + + TP_ARGS(local, sta, block), + + TP_STRUCT__entry( + LOCAL_ENTRY + STA_ENTRY + __field(bool, block) + ), + + TP_fast_assign( + LOCAL_ASSIGN; + STA_ASSIGN; + __entry->block = block; + ), + + TP_printk( + LOCAL_PR_FMT STA_PR_FMT " block:%d", + LOCAL_PR_ARG, STA_PR_FMT, __entry->block + ) +); + +/* + * Tracing for internal functions + * (which may also be called in response to driver calls) + */ + +TRACE_EVENT(wake_queue, + TP_PROTO(struct ieee80211_local *local, u16 queue, + enum queue_stop_reason reason), + + TP_ARGS(local, queue, reason), + + TP_STRUCT__entry( + LOCAL_ENTRY + __field(u16, queue) + __field(u32, reason) + ), + + TP_fast_assign( + LOCAL_ASSIGN; + __entry->queue = queue; + __entry->reason = reason; + ), + + TP_printk( + LOCAL_PR_FMT " queue:%d, reason:%d", + LOCAL_PR_ARG, __entry->queue, __entry->reason + ) +); + +TRACE_EVENT(stop_queue, + TP_PROTO(struct ieee80211_local *local, u16 queue, + enum queue_stop_reason reason), + + TP_ARGS(local, queue, reason), + + TP_STRUCT__entry( + LOCAL_ENTRY + __field(u16, queue) + __field(u32, reason) + ), + + TP_fast_assign( + LOCAL_ASSIGN; + __entry->queue = queue; + __entry->reason = reason; + ), + + TP_printk( + LOCAL_PR_FMT " queue:%d, reason:%d", + LOCAL_PR_ARG, __entry->queue, __entry->reason + ) +); #endif /* !__MAC80211_DRIVER_TRACE || TRACE_HEADER_MULTI_READ */ #undef TRACE_INCLUDE_PATH diff --git a/net/mac80211/main.c b/net/mac80211/main.c index b887e48..4afe851 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -309,6 +309,8 @@ void ieee80211_restart_hw(struct ieee80211_hw *hw) { struct ieee80211_local *local = hw_to_local(hw); + trace_api_restart_hw(local); + /* use this reason, __ieee80211_resume will unblock it */ ieee80211_stop_queues_by_reason(hw, IEEE80211_QUEUE_STOP_REASON_SUSPEND); diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 461167d..d11a54c 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -1007,6 +1007,8 @@ void ieee80211_beacon_loss(struct ieee80211_vif *vif) struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); struct ieee80211_hw *hw = &sdata->local->hw; + trace_api_beacon_loss(sdata); + WARN_ON(hw->flags & IEEE80211_HW_CONNECTION_MONITOR); ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work); } @@ -1017,6 +1019,8 @@ void ieee80211_connection_loss(struct ieee80211_vif *vif) struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); struct ieee80211_hw *hw = &sdata->local->hw; + trace_api_connection_loss(sdata); + WARN_ON(!(hw->flags & IEEE80211_HW_CONNECTION_MONITOR)); ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work); } @@ -2261,6 +2265,8 @@ void ieee80211_cqm_rssi_notify(struct ieee80211_vif *vif, { struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + trace_api_cqm_rssi_notify(sdata, rssi_event); + cfg80211_cqm_rssi_notify(sdata->dev, rssi_event, gfp); } EXPORT_SYMBOL(ieee80211_cqm_rssi_notify); diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index 75a8597..eb86a5f 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -247,6 +247,8 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted) struct ieee80211_local *local = hw_to_local(hw); bool was_hw_scan; + trace_api_scan_completed(local, aborted); + mutex_lock(&local->scan_mtx); /* diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 4de987c..ff0eb94 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -957,6 +957,8 @@ void ieee80211_sta_block_awake(struct ieee80211_hw *hw, { struct sta_info *sta = container_of(pubsta, struct sta_info, sta); + trace_api_sta_block_awake(sta->local, pubsta, block); + if (block) set_sta_flags(sta, WLAN_STA_PS_DRIVER); else diff --git a/net/mac80211/util.c b/net/mac80211/util.c index ad9009f..2b75b4f 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -270,6 +270,8 @@ static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue, struct ieee80211_local *local = hw_to_local(hw); struct ieee80211_sub_if_data *sdata; + trace_wake_queue(local, queue, reason); + if (WARN_ON(queue >= hw->queues)) return; @@ -312,6 +314,8 @@ static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue, struct ieee80211_local *local = hw_to_local(hw); struct ieee80211_sub_if_data *sdata; + trace_stop_queue(local, queue, reason); + if (WARN_ON(queue >= hw->queues)) return; |