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aa8705fc65
linux/drivers/net/wireless/ath/ath6kl/trace.h
Kalle Valo aa8705fc65 ath6kl: add tracing support to debug message macros 
Now all log messages are sent through the tracing infrastruture as well.
Tracing point doesn't follow debug_mask module parameter, instead it sends
all debug messages, so once you enable ath6kl_log_dbg tracing point you will
get a lot of messages. Needs to be discussed if this is sensible or not.
The overhead should be small enough and we anyway include debug level as
well so it's easy to filter in user space.

I wasn't really sure what to do with ath6kl_dbg_dump() and for now decided
that it also sends the buffer to user space. But most likely in the future
ath6kl_dbg_dump() should go away in favor of using proper tracing points, but
we will see.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-03-18 13:44:43 +02:00

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#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"
#include "hif.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) {}
#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(...)
#undef DEFINE_EVENT
#define DEFINE_EVENT(evt_class, 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
)
);
TRACE_EVENT(ath6kl_sdio,
TP_PROTO(unsigned int addr, int flags,
void *buf, size_t buf_len),
TP_ARGS(addr, flags, buf, buf_len),
TP_STRUCT__entry(
__field(unsigned int, tx)
__field(unsigned int, addr)
__field(int, flags)
__field(size_t, buf_len)
__dynamic_array(u8, buf, buf_len)
),
TP_fast_assign(
__entry->addr = addr;
__entry->flags = flags;
__entry->buf_len = buf_len;
memcpy(__get_dynamic_array(buf), buf, buf_len);
if (flags & HIF_WRITE)
__entry->tx = 1;
else
__entry->tx = 0;
),
TP_printk(
"%s addr 0x%x flags 0x%x len %d\n",
__entry->tx ? "tx" : "rx",
__entry->addr,
__entry->flags,
__entry->buf_len
)
);
TRACE_EVENT(ath6kl_sdio_scat,
TP_PROTO(unsigned int addr, int flags, unsigned int total_len,
unsigned int entries, struct hif_scatter_item *list),
TP_ARGS(addr, flags, total_len, entries, list),
TP_STRUCT__entry(
__field(unsigned int, tx)
__field(unsigned int, addr)
__field(int, flags)
__field(unsigned int, entries)
__field(size_t, total_len)
__dynamic_array(unsigned int, len_array, entries)
__dynamic_array(u8, data, total_len)
),
TP_fast_assign(
unsigned int *len_array;
int i, offset = 0;
size_t len;
__entry->addr = addr;
__entry->flags = flags;
__entry->entries = entries;
__entry->total_len = total_len;
if (flags & HIF_WRITE)
__entry->tx = 1;
else
__entry->tx = 0;
len_array = __get_dynamic_array(len_array);
for (i = 0; i < entries; i++) {
len = list[i].len;
memcpy((u8 *) __get_dynamic_array(data) + offset,
list[i].buf, len);
len_array[i] = len;
offset += len;
}
),
TP_printk(
"%s addr 0x%x flags 0x%x entries %d total_len %d\n",
__entry->tx ? "tx" : "rx",
__entry->addr,
__entry->flags,
__entry->entries,
__entry->total_len
)
);
TRACE_EVENT(ath6kl_sdio_irq,
TP_PROTO(void *buf, size_t buf_len),
TP_ARGS(buf, buf_len),
TP_STRUCT__entry(
__field(size_t, buf_len)
__dynamic_array(u8, buf, buf_len)
),
TP_fast_assign(
__entry->buf_len = buf_len;
memcpy(__get_dynamic_array(buf), buf, buf_len);
),
TP_printk(
"irq len %d\n", __entry->buf_len
)
);
TRACE_EVENT(ath6kl_htc_rx,
TP_PROTO(int status, int endpoint, void *buf,
size_t buf_len),
TP_ARGS(status, endpoint, buf, buf_len),
TP_STRUCT__entry(
__field(int, status)
__field(int, endpoint)
__field(size_t, buf_len)
__dynamic_array(u8, buf, buf_len)
),
TP_fast_assign(
__entry->status = status;
__entry->endpoint = endpoint;
__entry->buf_len = buf_len;
memcpy(__get_dynamic_array(buf), buf, buf_len);
),
TP_printk(
"status %d endpoint %d len %d\n",
__entry->status,
__entry->endpoint,
__entry->buf_len
)
);
TRACE_EVENT(ath6kl_htc_tx,
TP_PROTO(int status, int endpoint, void *buf,
size_t buf_len),
TP_ARGS(status, endpoint, buf, buf_len),
TP_STRUCT__entry(
__field(int, status)
__field(int, endpoint)
__field(size_t, buf_len)
__dynamic_array(u8, buf, buf_len)
),
TP_fast_assign(
__entry->status = status;
__entry->endpoint = endpoint;
__entry->buf_len = buf_len;
memcpy(__get_dynamic_array(buf), buf, buf_len);
),
TP_printk(
"status %d endpoint %d len %d\n",
__entry->status,
__entry->endpoint,
__entry->buf_len
)
);
#define ATH6KL_MSG_MAX 200
DECLARE_EVENT_CLASS(ath6kl_log_event,
TP_PROTO(struct va_format *vaf),
TP_ARGS(vaf),
TP_STRUCT__entry(
__dynamic_array(char, msg, ATH6KL_MSG_MAX)
),
TP_fast_assign(
WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
ATH6KL_MSG_MAX,
vaf->fmt,
*vaf->va) >= ATH6KL_MSG_MAX);
),
TP_printk("%s", __get_str(msg))
);
DEFINE_EVENT(ath6kl_log_event, ath6kl_log_err,
TP_PROTO(struct va_format *vaf),
TP_ARGS(vaf)
);
DEFINE_EVENT(ath6kl_log_event, ath6kl_log_warn,
TP_PROTO(struct va_format *vaf),
TP_ARGS(vaf)
);
DEFINE_EVENT(ath6kl_log_event, ath6kl_log_info,
TP_PROTO(struct va_format *vaf),
TP_ARGS(vaf)
);
TRACE_EVENT(ath6kl_log_dbg,
TP_PROTO(unsigned int level, struct va_format *vaf),
TP_ARGS(level, vaf),
TP_STRUCT__entry(
__field(unsigned int, level)
__dynamic_array(char, msg, ATH6KL_MSG_MAX)
),
TP_fast_assign(
__entry->level = level;
WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
ATH6KL_MSG_MAX,
vaf->fmt,
*vaf->va) >= ATH6KL_MSG_MAX);
),
TP_printk("%s", __get_str(msg))
);
TRACE_EVENT(ath6kl_log_dbg_dump,
TP_PROTO(const char *msg, const char *prefix,
const void *buf, size_t buf_len),
TP_ARGS(msg, prefix, buf, buf_len),
TP_STRUCT__entry(
__string(msg, msg)
__string(prefix, prefix)
__field(size_t, buf_len)
__dynamic_array(u8, buf, buf_len)
),
TP_fast_assign(
__assign_str(msg, msg);
__assign_str(prefix, prefix);
__entry->buf_len = buf_len;
memcpy(__get_dynamic_array(buf), buf, buf_len);
),
TP_printk(
"%s/%s\n", __get_str(prefix), __get_str(msg)
)
);
#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>
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