diff options
| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2019-12-29 13:03:07 +0300 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2020-02-14 12:06:03 +0300 |
| commit | 9cd82366a7c09a7cf2461fdb6c38ec603005fab4 (patch) | |
| tree | ce81cd9cb36b3799c75036b9787ecfd7d168f415 | |
| parent | 5498974bd5d060e203e814789a16bb347cc5b880 (diff) | |
| download | linux-9cd82366a7c09a7cf2461fdb6c38ec603005fab4.tar.xz | |
mt76: mt7615: add tracing support
Introduce token tracing support in mt7615_mac_tx_free routine
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
4 files changed, 77 insertions, 2 deletions
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 de80e8c7245b..16233ced0058 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@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> 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@kernel.org> + */ + +#include <linux/module.h> + +#ifndef __CHECKER__ +#define CREATE_TRACE_POINTS +#include "mt7615_trace.h" + +#endif |