From: Lorenzo Bianconi Date: Sun, 11 Apr 2021 19:03:45 +0000 (+0200) Subject: mt76: mt7921: introduce MCU_EVENT_LP_INFO event parsing X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=2afd17b4d0fc15cba0144e7a4c26549b0e829ce9;p=linux.git mt76: mt7921: introduce MCU_EVENT_LP_INFO event parsing Report trace event related to MCU_EVENT_LP_INFO that is sent by the mcu when it is ready to enter in deep sleep state Signed-off-by: Lorenzo Bianconi Signed-off-by: Felix Fietkau --- diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/Makefile b/drivers/net/wireless/mediatek/mt76/mt7921/Makefile index 09d1446ad9335..e531666f9fb43 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/Makefile +++ b/drivers/net/wireless/mediatek/mt76/mt7921/Makefile @@ -2,4 +2,6 @@ obj-$(CONFIG_MT7921E) += mt7921e.o -mt7921e-y := pci.o mac.o mcu.o dma.o eeprom.o main.o init.o debugfs.o +CFLAGS_trace.o := -I$(src) + +mt7921e-y := pci.o mac.o mcu.o dma.o eeprom.o main.o init.o debugfs.o trace.o diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c index b233b12860ef6..7d45e8795e15b 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c @@ -4,6 +4,7 @@ #include #include #include "mt7921.h" +#include "mt7921_trace.h" #include "mcu.h" #include "mac.h" @@ -498,6 +499,20 @@ mt7921_mcu_debug_msg_event(struct mt7921_dev *dev, struct sk_buff *skb) } } +static void +mt7921_mcu_low_power_event(struct mt7921_dev *dev, struct sk_buff *skb) +{ + struct mt7921_mcu_lp_event { + u8 state; + u8 reserved[3]; + } __packed * event; + + skb_pull(skb, sizeof(struct mt7921_mcu_rxd)); + event = (struct mt7921_mcu_lp_event *)skb->data; + + trace_lp_event(dev, event->state); +} + static void mt7921_mcu_rx_unsolicited_event(struct mt7921_dev *dev, struct sk_buff *skb) { @@ -521,6 +536,9 @@ mt7921_mcu_rx_unsolicited_event(struct mt7921_dev *dev, struct sk_buff *skb) mt76_connac_mcu_coredump_event(&dev->mt76, skb, &dev->coredump); return; + case MCU_EVENT_LP_INFO: + mt7921_mcu_low_power_event(dev, skb); + break; default: break; } @@ -543,6 +561,7 @@ void mt7921_mcu_rx_event(struct mt7921_dev *dev, struct sk_buff *skb) rxd->eid == MCU_EVENT_SCAN_DONE || rxd->eid == MCU_EVENT_DBG_MSG || rxd->eid == MCU_EVENT_COREDUMP || + rxd->eid == MCU_EVENT_LP_INFO || !rxd->seq) mt7921_mcu_rx_unsolicited_event(dev, skb); else diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h index af8b42983a00d..13e125f322835 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h @@ -79,6 +79,7 @@ struct mt7921_uni_txd { /* event table */ enum { MCU_EVENT_REG_ACCESS = 0x05, + MCU_EVENT_LP_INFO = 0x07, MCU_EVENT_SCAN_DONE = 0x0d, MCU_EVENT_BSS_ABSENCE = 0x11, MCU_EVENT_BSS_BEACON_LOSS = 0x13, diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921_trace.h b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921_trace.h new file mode 100644 index 0000000000000..9bc4db67f352d --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921_trace.h @@ -0,0 +1,51 @@ +/* SPDX-License-Identifier: ISC */ +/* + * Copyright (C) 2021 Lorenzo Bianconi + */ + +#if !defined(__MT7921_TRACE_H) || defined(TRACE_HEADER_MULTI_READ) +#define __MT7921_TRACE_H + +#include +#include "mt7921.h" + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM mt7921 + +#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 LP_STATE_PR_ARG __entry->lp_state ? "lp ready" : "lp not ready" + +TRACE_EVENT(lp_event, + TP_PROTO(struct mt7921_dev *dev, u8 lp_state), + + TP_ARGS(dev, lp_state), + + TP_STRUCT__entry( + DEV_ENTRY + __field(u8, lp_state) + ), + + TP_fast_assign( + DEV_ASSIGN; + __entry->lp_state = lp_state; + ), + + TP_printk( + DEV_PR_FMT " %s", + DEV_PR_ARG, LP_STATE_PR_ARG + ) +); + +#endif + +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH . +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_FILE mt7921_trace + +#include diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/trace.c b/drivers/net/wireless/mediatek/mt76/mt7921/trace.c new file mode 100644 index 0000000000000..4dc3c7b89ebd5 --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/mt7921/trace.c @@ -0,0 +1,12 @@ +// SPDX-License-Identifier: ISC +/* + * Copyright (C) 2021 Lorenzo Bianconi + */ + +#include + +#ifndef __CHECKER__ +#define CREATE_TRACE_POINTS +#include "mt7921_trace.h" + +#endif