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Commit 416cf0b4 authored by Kalle Valo's avatar Kalle Valo
Browse files

ath6kl: add tracing support and tracing points for wmi packets 



Add basic tracing infrastructure support to ath6kl and which can be
enabled with CONFIG_ATH6KL_TRACING.

Signed-off-by: default avatarKalle Valo <kvalo@qca.qualcomm.com>
parent 44af3442

drivers/net/wireless/ath/ath6kl/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -31,6 +31,15 @@ config ATH6KL_DEBUG 
	---help---

	  Enables debug support



config ATH6KL_TRACING

	bool "Atheros ath6kl tracing support"

	depends on ATH6KL

	depends on EVENT_TRACING

	---help---

	  Select this to ath6kl use tracing infrastructure.



	  If unsure, say Y to make it easier to debug problems.



config ATH6KL_REGDOMAIN

	bool "Atheros ath6kl regdomain support"

	depends on ATH6KL

drivers/net/wireless/ath/ath6kl/Makefile

+5 −0
Original line number Diff line number Diff line
@@ -35,10 +35,15 @@ ath6kl_core-y += txrx.o 
ath6kl_core-y += wmi.o

ath6kl_core-y += core.o

ath6kl_core-y += recovery.o



ath6kl_core-$(CONFIG_NL80211_TESTMODE) += testmode.o

ath6kl_core-$(CONFIG_ATH6KL_TRACING) += trace.o



obj-$(CONFIG_ATH6KL_SDIO) += ath6kl_sdio.o

ath6kl_sdio-y += sdio.o



obj-$(CONFIG_ATH6KL_USB) += ath6kl_usb.o

ath6kl_usb-y += usb.o



# for tracing framework to find trace.h

CFLAGS_trace.o := -I$(src)

drivers/net/wireless/ath/ath6kl/trace.c

0 → 100644
+18 −0
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2012 Qualcomm Atheros, Inc.

 *

 * Permission to use, copy, modify, and/or distribute this software for any

 * purpose with or without fee is hereby granted, provided that the above

 * copyright notice and this permission notice appear in all copies.

 *

 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN

 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF

 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

 */



#define CREATE_TRACE_POINTS

#include "trace.h"

drivers/net/wireless/ath/ath6kl/trace.h

0 → 100644
+87 −0
Original line number Diff line number Diff line 
#if !defined(_ATH6KL_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)



#include <net/cfg80211.h>

#include <linux/skbuff.h>

#include <linux/tracepoint.h>

#include "wmi.h"



#if !defined(_ATH6KL_TRACE_H)

static inline unsigned int ath6kl_get_wmi_id(void *buf, size_t buf_len)

{

	struct wmi_cmd_hdr *hdr = buf;



	if (buf_len < sizeof(*hdr))

		return 0;



	return le16_to_cpu(hdr->cmd_id);

}

#endif /* __ATH6KL_TRACE_H */



#define _ATH6KL_TRACE_H



/* create empty functions when tracing is disabled */

#if !defined(CONFIG_ATH6KL_TRACING)

#undef TRACE_EVENT

#define TRACE_EVENT(name, proto, ...) \

static inline void trace_ ## name(proto) {}

#endif /* !CONFIG_ATH6KL_TRACING || __CHECKER__ */



#undef TRACE_SYSTEM

#define TRACE_SYSTEM ath6kl



TRACE_EVENT(ath6kl_wmi_cmd,

	TP_PROTO(void *buf, size_t buf_len),



	TP_ARGS(buf, buf_len),



	TP_STRUCT__entry(

		__field(unsigned int, id)

		__field(size_t, buf_len)

		__dynamic_array(u8, buf, buf_len)

	),



	TP_fast_assign(

		__entry->id = ath6kl_get_wmi_id(buf, buf_len);

		__entry->buf_len = buf_len;

		memcpy(__get_dynamic_array(buf), buf, buf_len);

	),



	TP_printk(

		"id %d len %d",

		__entry->id, __entry->buf_len

	)

);



TRACE_EVENT(ath6kl_wmi_event,

	TP_PROTO(void *buf, size_t buf_len),



	TP_ARGS(buf, buf_len),



	TP_STRUCT__entry(

		__field(unsigned int, id)

		__field(size_t, buf_len)

		__dynamic_array(u8, buf, buf_len)

	),



	TP_fast_assign(

		__entry->id = ath6kl_get_wmi_id(buf, buf_len);

		__entry->buf_len = buf_len;

		memcpy(__get_dynamic_array(buf), buf, buf_len);

	),



	TP_printk(

		"id %d len %d",

		__entry->id, __entry->buf_len

	)

);



#endif /* _ ATH6KL_TRACE_H || TRACE_HEADER_MULTI_READ*/



/* we don't want to use include/trace/events */

#undef TRACE_INCLUDE_PATH

#define TRACE_INCLUDE_PATH .

#undef TRACE_INCLUDE_FILE

#define TRACE_INCLUDE_FILE trace



/* This part must be outside protection */

#include <trace/define_trace.h>

drivers/net/wireless/ath/ath6kl/txrx.c

+3 −0
Original line number Diff line number Diff line
@@ -20,6 +20,7 @@ 
#include "core.h"

#include "debug.h"

#include "htc-ops.h"

#include "trace.h"



/*

 * tid - tid_mux0..tid_mux3
@@ -288,6 +289,8 @@ int ath6kl_control_tx(void *devt, struct sk_buff *skb, 
	int status = 0;

	struct ath6kl_cookie *cookie = NULL;



	trace_ath6kl_wmi_cmd(skb->data, skb->len);



	if (WARN_ON_ONCE(ar->state == ATH6KL_STATE_WOW)) {

		dev_kfree_skb(skb);

		return -EACCES;