Commit 9cd82366 authored by Lorenzo Bianconi's avatar Lorenzo Bianconi Committed by Felix Fietkau
Browse files

mt76: mt7615: add tracing support 



Introduce token tracing support in mt7615_mac_tx_free routine

Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: default avatarFelix Fietkau <nbd@nbd.name>
parent 5498974b

drivers/net/wireless/mediatek/mt76/mt7615/Makefile

+3 −1
Original line number Diff line number Diff line
@@ -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

drivers/net/wireless/mediatek/mt76/mt7615/mac.c

+6 −1
Original line number Diff line number Diff line
@@ -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);

drivers/net/wireless/mediatek/mt76/mt7615/mt7615_trace.h

0 → 100644
+56 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: ISC */

/*

 * Copyright (C) 2019 Lorenzo Bianconi <lorenzo@kernel.org>

 */



#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>

drivers/net/wireless/mediatek/mt76/mt7615/trace.c

0 → 100644
+12 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: ISC

/*

 * Copyright (C) 2019 Lorenzo Bianconi <lorenzo@kernel.org>

 */



#include <linux/module.h>



#ifndef __CHECKER__

#define CREATE_TRACE_POINTS

#include "mt7615_trace.h"



#endif