Introduce token tracing support in mt7615_mac_tx_free routine
Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
---
.../wireless/mediatek/mt76/mt7615/Makefile | 4 +-
.../net/wireless/mediatek/mt76/mt7615/mac.c | 7 ++-
.../mediatek/mt76/mt7615/mt7615_trace.h | 56 +++++++++++++++++++
.../net/wireless/mediatek/mt76/mt7615/trace.c | 12 ++++
4 files changed, 77 insertions(+), 2 deletions(-)
create mode 100644 drivers/net/wireless/mediatek/mt76/mt7615/mt7615_trace.h
create mode 100644 drivers/net/wireless/mediatek/mt76/mt7615/trace.c
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/Makefile b/drivers/net/wireless/mediatek/mt76/mt7615/Makefile
index 5aaac69849d6..dcd6b0e7ce84 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/Makefile
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/Makefile
@@ -2,5 +2,7 @@
obj-$(CONFIG_MT7615E) += mt7615e.o
+CFLAGS_trace.o := -I$(src)
+
mt7615e-y := pci.o init.o dma.o eeprom.o main.o mcu.o mac.o \
- debugfs.o
+ debugfs.o trace.o
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
index 3819a330804c..c958137465c9 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
@@ -12,6 +12,7 @@
#include "mt7615.h"
#include "../trace.h"
#include "../dma.h"
+#include "mt7615_trace.h"
#include "mac.h"
#define to_rssi(field, rxv) ((FIELD_GET(field, rxv) - 220) / 2)
@@ -1300,13 +1301,17 @@ void mt7615_mac_tx_free(struct mt7615_dev *dev, struct sk_buff *skb)
count = FIELD_GET(MT_TX_FREE_MSDU_ID_CNT, le16_to_cpu(free->ctrl));
for (i = 0; i < count; i++) {
+ u16 token = le16_to_cpu(free->token[i]);
+
spin_lock_bh(&dev->token_lock);
- txwi = idr_remove(&dev->token, le16_to_cpu(free->token[i]));
+ txwi = idr_remove(&dev->token, token);
spin_unlock_bh(&dev->token_lock);
if (!txwi)
continue;
+ trace_mac_tx_free(dev, token);
+
mt7615_txp_skb_unmap(mdev, txwi);
if (txwi->skb) {
mt76_tx_complete_skb(mdev, txwi->skb);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615_trace.h b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615_trace.h
new file mode 100644
index 000000000000..d3eb49d83b98
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615_trace.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: ISC */
+/*
+ * Copyright (C) 2019 Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
+ */
+
+#if !defined(__MT7615_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define __MT7615_TRACE_H
+
+#include <linux/tracepoint.h>
+#include "mt7615.h"
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM mt7615
+
+#define MAXNAME 32
+#define DEV_ENTRY __array(char, wiphy_name, 32)
+#define DEV_ASSIGN strlcpy(__entry->wiphy_name, \
+ wiphy_name(mt76_hw(dev)->wiphy), MAXNAME)
+#define DEV_PR_FMT "%s"
+#define DEV_PR_ARG __entry->wiphy_name
+
+#define TOKEN_ENTRY __field(u16, token)
+#define TOKEN_ASSIGN __entry->token = token
+#define TOKEN_PR_FMT " %d"
+#define TOKEN_PR_ARG __entry->token
+
+DECLARE_EVENT_CLASS(dev_token,
+ TP_PROTO(struct mt7615_dev *dev, u16 token),
+ TP_ARGS(dev, token),
+ TP_STRUCT__entry(
+ DEV_ENTRY
+ TOKEN_ENTRY
+ ),
+ TP_fast_assign(
+ DEV_ASSIGN;
+ TOKEN_ASSIGN;
+ ),
+ TP_printk(
+ DEV_PR_FMT TOKEN_PR_FMT,
+ DEV_PR_ARG, TOKEN_PR_ARG
+ )
+);
+
+DEFINE_EVENT(dev_token, mac_tx_free,
+ TP_PROTO(struct mt7615_dev *dev, u16 token),
+ TP_ARGS(dev, token)
+);
+
+#endif
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE mt7615_trace
+
+#include <trace/define_trace.h>
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/trace.c b/drivers/net/wireless/mediatek/mt76/mt7615/trace.c
new file mode 100644
index 000000000000..6c02d5aff68f
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/trace.c
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Copyright (C) 2019 Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
+ */
+
+#include <linux/module.h>
+
+#ifndef __CHECKER__
+#define CREATE_TRACE_POINTS
+#include "mt7615_trace.h"
+
+#endif
--
2.21.0
