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linux_dsm_epyc7002/drivers/net/wireless/ath/ath10k/trace.h
Venkateswara Naralasetty 9d740d6380 ath10k: Add wrapper function to ath10k debug 
ath10k_dbg() is called in ath10k_process_rx() with huge set of arguments
which is causing CPU overhead even when debug_mask is not set.
Good improvement was observed in the receive side performance when call
to ath10k_dbg() is avoided in the RX path.

Since currently all debug messages are sent via tracing infrastructure,
we cannot entirely avoid calling ath10k_dbg. Therefore, call to
ath10k_dbg() is made conditional based on tracing config in the driver.

Trasmit performance remains unchanged with this patch; below are some
experimental results with this patch and tracing disabled.

mesh mode:

		w/o this patch          with this patch
Traffic       TP      CPU Usage      TP      CPU usage

TCP          840Mbps    76.53%      960Mbps    78.14%
UDP          1030Mbps   74.58%      1132Mbps   74.31%

Infra mode:

		w/o this patch          with this patch
Traffic        TP      CPU Usage      TP      CPU usage

TCP Rx       1241Mbps   80.89%      1270Mbps   73.50%
UDP Rx       1433Mbps   81.77%      1472Mbps   72.80%

Tested platform	: IPQ8064
hardware used	: QCA9984
firmware ver	: ver 10.4-3.5.3-00057

Signed-off-by: Kan Yan <kyan@chromium.org>
Signed-off-by: Venkateswara Naralasetty <vnaralas@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-06-25 15:48:47 +03:00

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/* SPDX-License-Identifier: ISC */
/*
* Copyright (c) 2005-2011 Atheros Communications Inc.
* Copyright (c) 2011-2016 Qualcomm Atheros, Inc.
*/
#if !defined(_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
#include <linux/tracepoint.h>
#include "core.h"
#if !defined(_TRACE_H_)
static inline u32 ath10k_frm_hdr_len(const void *buf, size_t len)
{
const struct ieee80211_hdr *hdr = buf;
/* In some rare cases (e.g. fcs error) device reports frame buffer
* shorter than what frame header implies (e.g. len = 0). The buffer
* can still be accessed so do a simple min() to guarantee caller
* doesn't get value greater than len.
*/
return min_t(u32, len, ieee80211_hdrlen(hdr->frame_control));
}
#endif
#define _TRACE_H_
/* create empty functions when tracing is disabled */
#if !defined(CONFIG_ATH10K_TRACING)
#undef TRACE_EVENT
#define TRACE_EVENT(name, proto, ...) \
static inline void trace_ ## name(proto) {} \
static inline bool trace_##name##_enabled(void) \
{ \
return false; \
}
#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_ATH10K_TRACING || __CHECKER__ */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM ath10k
#define ATH10K_MSG_MAX 400
DECLARE_EVENT_CLASS(ath10k_log_event,
TP_PROTO(struct ath10k *ar, struct va_format *vaf),
TP_ARGS(ar, vaf),
TP_STRUCT__entry(
__string(device, dev_name(ar->dev))
__string(driver, dev_driver_string(ar->dev))
__dynamic_array(char, msg, ATH10K_MSG_MAX)
),
TP_fast_assign(
__assign_str(device, dev_name(ar->dev));
__assign_str(driver, dev_driver_string(ar->dev));
WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
ATH10K_MSG_MAX,
vaf->fmt,
*vaf->va) >= ATH10K_MSG_MAX);
),
TP_printk(
"%s %s %s",
__get_str(driver),
__get_str(device),
__get_str(msg)
)
);
DEFINE_EVENT(ath10k_log_event, ath10k_log_err,
TP_PROTO(struct ath10k *ar, struct va_format *vaf),
TP_ARGS(ar, vaf)
);
DEFINE_EVENT(ath10k_log_event, ath10k_log_warn,
TP_PROTO(struct ath10k *ar, struct va_format *vaf),
TP_ARGS(ar, vaf)
);
DEFINE_EVENT(ath10k_log_event, ath10k_log_info,
TP_PROTO(struct ath10k *ar, struct va_format *vaf),
TP_ARGS(ar, vaf)
);
TRACE_EVENT(ath10k_log_dbg,
TP_PROTO(struct ath10k *ar, unsigned int level, struct va_format *vaf),
TP_ARGS(ar, level, vaf),
TP_STRUCT__entry(
__string(device, dev_name(ar->dev))
__string(driver, dev_driver_string(ar->dev))
__field(unsigned int, level)
__dynamic_array(char, msg, ATH10K_MSG_MAX)
),
TP_fast_assign(
__assign_str(device, dev_name(ar->dev));
__assign_str(driver, dev_driver_string(ar->dev));
__entry->level = level;
WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
ATH10K_MSG_MAX,
vaf->fmt,
*vaf->va) >= ATH10K_MSG_MAX);
),
TP_printk(
"%s %s %s",
__get_str(driver),
__get_str(device),
__get_str(msg)
)
);
TRACE_EVENT(ath10k_log_dbg_dump,
TP_PROTO(struct ath10k *ar, const char *msg, const char *prefix,
const void *buf, size_t buf_len),
TP_ARGS(ar, msg, prefix, buf, buf_len),
TP_STRUCT__entry(
__string(device, dev_name(ar->dev))
__string(driver, dev_driver_string(ar->dev))
__string(msg, msg)
__string(prefix, prefix)
__field(size_t, buf_len)
__dynamic_array(u8, buf, buf_len)
),
TP_fast_assign(
__assign_str(device, dev_name(ar->dev));
__assign_str(driver, dev_driver_string(ar->dev));
__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 %s/%s\n",
__get_str(driver),
__get_str(device),
__get_str(prefix),
__get_str(msg)
)
);
TRACE_EVENT(ath10k_wmi_cmd,
TP_PROTO(struct ath10k *ar, int id, const void *buf, size_t buf_len),
TP_ARGS(ar, id, buf, buf_len),
TP_STRUCT__entry(
__string(device, dev_name(ar->dev))
__string(driver, dev_driver_string(ar->dev))
__field(unsigned int, id)
__field(size_t, buf_len)
__dynamic_array(u8, buf, buf_len)
),
TP_fast_assign(
__assign_str(device, dev_name(ar->dev));
__assign_str(driver, dev_driver_string(ar->dev));
__entry->id = id;
__entry->buf_len = buf_len;
memcpy(__get_dynamic_array(buf), buf, buf_len);
),
TP_printk(
"%s %s id %d len %zu",
__get_str(driver),
__get_str(device),
__entry->id,
__entry->buf_len
)
);
TRACE_EVENT(ath10k_wmi_event,
TP_PROTO(struct ath10k *ar, int id, const void *buf, size_t buf_len),
TP_ARGS(ar, id, buf, buf_len),
TP_STRUCT__entry(
__string(device, dev_name(ar->dev))
__string(driver, dev_driver_string(ar->dev))
__field(unsigned int, id)
__field(size_t, buf_len)
__dynamic_array(u8, buf, buf_len)
),
TP_fast_assign(
__assign_str(device, dev_name(ar->dev));
__assign_str(driver, dev_driver_string(ar->dev));
__entry->id = id;
__entry->buf_len = buf_len;
memcpy(__get_dynamic_array(buf), buf, buf_len);
),
TP_printk(
"%s %s id %d len %zu",
__get_str(driver),
__get_str(device),
__entry->id,
__entry->buf_len
)
);
TRACE_EVENT(ath10k_htt_stats,
TP_PROTO(struct ath10k *ar, const void *buf, size_t buf_len),
TP_ARGS(ar, buf, buf_len),
TP_STRUCT__entry(
__string(device, dev_name(ar->dev))
__string(driver, dev_driver_string(ar->dev))
__field(size_t, buf_len)
__dynamic_array(u8, buf, buf_len)
),
TP_fast_assign(
__assign_str(device, dev_name(ar->dev));
__assign_str(driver, dev_driver_string(ar->dev));
__entry->buf_len = buf_len;
memcpy(__get_dynamic_array(buf), buf, buf_len);
),
TP_printk(
"%s %s len %zu",
__get_str(driver),
__get_str(device),
__entry->buf_len
)
);
TRACE_EVENT(ath10k_wmi_dbglog,
TP_PROTO(struct ath10k *ar, const void *buf, size_t buf_len),
TP_ARGS(ar, buf, buf_len),
TP_STRUCT__entry(
__string(device, dev_name(ar->dev))
__string(driver, dev_driver_string(ar->dev))
__field(u8, hw_type);
__field(size_t, buf_len)
__dynamic_array(u8, buf, buf_len)
),
TP_fast_assign(
__assign_str(device, dev_name(ar->dev));
__assign_str(driver, dev_driver_string(ar->dev));
__entry->hw_type = ar->hw_rev;
__entry->buf_len = buf_len;
memcpy(__get_dynamic_array(buf), buf, buf_len);
),
TP_printk(
"%s %s %d len %zu",
__get_str(driver),
__get_str(device),
__entry->hw_type,
__entry->buf_len
)
);
TRACE_EVENT(ath10k_htt_pktlog,
TP_PROTO(struct ath10k *ar, const void *buf, u16 buf_len),
TP_ARGS(ar, buf, buf_len),
TP_STRUCT__entry(
__string(device, dev_name(ar->dev))
__string(driver, dev_driver_string(ar->dev))
__field(u8, hw_type);
__field(u16, buf_len)
__dynamic_array(u8, pktlog, buf_len)
),
TP_fast_assign(
__assign_str(device, dev_name(ar->dev));
__assign_str(driver, dev_driver_string(ar->dev));
__entry->hw_type = ar->hw_rev;
__entry->buf_len = buf_len;
memcpy(__get_dynamic_array(pktlog), buf, buf_len);
),
TP_printk(
"%s %s %d size %hu",
__get_str(driver),
__get_str(device),
__entry->hw_type,
__entry->buf_len
)
);
TRACE_EVENT(ath10k_htt_tx,
TP_PROTO(struct ath10k *ar, u16 msdu_id, u16 msdu_len,
u8 vdev_id, u8 tid),
TP_ARGS(ar, msdu_id, msdu_len, vdev_id, tid),
TP_STRUCT__entry(
__string(device, dev_name(ar->dev))
__string(driver, dev_driver_string(ar->dev))
__field(u16, msdu_id)
__field(u16, msdu_len)
__field(u8, vdev_id)
__field(u8, tid)
),
TP_fast_assign(
__assign_str(device, dev_name(ar->dev));
__assign_str(driver, dev_driver_string(ar->dev));
__entry->msdu_id = msdu_id;
__entry->msdu_len = msdu_len;
__entry->vdev_id = vdev_id;
__entry->tid = tid;
),
TP_printk(
"%s %s msdu_id %d msdu_len %d vdev_id %d tid %d",
__get_str(driver),
__get_str(device),
__entry->msdu_id,
__entry->msdu_len,
__entry->vdev_id,
__entry->tid
)
);
TRACE_EVENT(ath10k_txrx_tx_unref,
TP_PROTO(struct ath10k *ar, u16 msdu_id),
TP_ARGS(ar, msdu_id),
TP_STRUCT__entry(
__string(device, dev_name(ar->dev))
__string(driver, dev_driver_string(ar->dev))
__field(u16, msdu_id)
),
TP_fast_assign(
__assign_str(device, dev_name(ar->dev));
__assign_str(driver, dev_driver_string(ar->dev));
__entry->msdu_id = msdu_id;
),
TP_printk(
"%s %s msdu_id %d",
__get_str(driver),
__get_str(device),
__entry->msdu_id
)
);
DECLARE_EVENT_CLASS(ath10k_hdr_event,
TP_PROTO(struct ath10k *ar, const void *data, size_t len),
TP_ARGS(ar, data, len),
TP_STRUCT__entry(
__string(device, dev_name(ar->dev))
__string(driver, dev_driver_string(ar->dev))
__field(size_t, len)
__dynamic_array(u8, data, ath10k_frm_hdr_len(data, len))
),
TP_fast_assign(
__assign_str(device, dev_name(ar->dev));
__assign_str(driver, dev_driver_string(ar->dev));
__entry->len = ath10k_frm_hdr_len(data, len);
memcpy(__get_dynamic_array(data), data, __entry->len);
),
TP_printk(
"%s %s len %zu\n",
__get_str(driver),
__get_str(device),
__entry->len
)
);
DECLARE_EVENT_CLASS(ath10k_payload_event,
TP_PROTO(struct ath10k *ar, const void *data, size_t len),
TP_ARGS(ar, data, len),
TP_STRUCT__entry(
__string(device, dev_name(ar->dev))
__string(driver, dev_driver_string(ar->dev))
__field(size_t, len)
__dynamic_array(u8, payload, (len -
ath10k_frm_hdr_len(data, len)))
),
TP_fast_assign(
__assign_str(device, dev_name(ar->dev));
__assign_str(driver, dev_driver_string(ar->dev));
__entry->len = len - ath10k_frm_hdr_len(data, len);
memcpy(__get_dynamic_array(payload),
data + ath10k_frm_hdr_len(data, len), __entry->len);
),
TP_printk(
"%s %s len %zu\n",
__get_str(driver),
__get_str(device),
__entry->len
)
);
DEFINE_EVENT(ath10k_hdr_event, ath10k_tx_hdr,
TP_PROTO(struct ath10k *ar, const void *data, size_t len),
TP_ARGS(ar, data, len)
);
DEFINE_EVENT(ath10k_payload_event, ath10k_tx_payload,
TP_PROTO(struct ath10k *ar, const void *data, size_t len),
TP_ARGS(ar, data, len)
);
DEFINE_EVENT(ath10k_hdr_event, ath10k_rx_hdr,
TP_PROTO(struct ath10k *ar, const void *data, size_t len),
TP_ARGS(ar, data, len)
);
DEFINE_EVENT(ath10k_payload_event, ath10k_rx_payload,
TP_PROTO(struct ath10k *ar, const void *data, size_t len),
TP_ARGS(ar, data, len)
);
TRACE_EVENT(ath10k_htt_rx_desc,
TP_PROTO(struct ath10k *ar, const void *data, size_t len),
TP_ARGS(ar, data, len),
TP_STRUCT__entry(
__string(device, dev_name(ar->dev))
__string(driver, dev_driver_string(ar->dev))
__field(u8, hw_type);
__field(u16, len)
__dynamic_array(u8, rxdesc, len)
),
TP_fast_assign(
__assign_str(device, dev_name(ar->dev));
__assign_str(driver, dev_driver_string(ar->dev));
__entry->hw_type = ar->hw_rev;
__entry->len = len;
memcpy(__get_dynamic_array(rxdesc), data, len);
),
TP_printk(
"%s %s %d rxdesc len %d",
__get_str(driver),
__get_str(device),
__entry->hw_type,
__entry->len
)
);
TRACE_EVENT(ath10k_wmi_diag_container,
TP_PROTO(struct ath10k *ar,
u8 type,
u32 timestamp,
u32 code,
u16 len,
const void *data),
TP_ARGS(ar, type, timestamp, code, len, data),
TP_STRUCT__entry(
__string(device, dev_name(ar->dev))
__string(driver, dev_driver_string(ar->dev))
__field(u8, type)
__field(u32, timestamp)
__field(u32, code)
__field(u16, len)
__dynamic_array(u8, data, len)
),
TP_fast_assign(
__assign_str(device, dev_name(ar->dev));
__assign_str(driver, dev_driver_string(ar->dev));
__entry->type = type;
__entry->timestamp = timestamp;
__entry->code = code;
__entry->len = len;
memcpy(__get_dynamic_array(data), data, len);
),
TP_printk(
"%s %s diag container type %hhu timestamp %u code %u len %d",
__get_str(driver),
__get_str(device),
__entry->type,
__entry->timestamp,
__entry->code,
__entry->len
)
);
TRACE_EVENT(ath10k_wmi_diag,
TP_PROTO(struct ath10k *ar, const void *data, size_t len),
TP_ARGS(ar, data, len),
TP_STRUCT__entry(
__string(device, dev_name(ar->dev))
__string(driver, dev_driver_string(ar->dev))
__field(u16, len)
__dynamic_array(u8, data, len)
),
TP_fast_assign(
__assign_str(device, dev_name(ar->dev));
__assign_str(driver, dev_driver_string(ar->dev));
__entry->len = len;
memcpy(__get_dynamic_array(data), data, len);
),
TP_printk(
"%s %s tlv diag len %d",
__get_str(driver),
__get_str(device),
__entry->len
)
);
#endif /* _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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