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lede/package/kernel/mac80211/patches/ath11k/0097-ath11k-add-trace-log-support.patch

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From fb12305aff12e735e599c79514dde5dac40f5a59 Mon Sep 17 00:00:00 2001
From: Venkateswara Naralasetty <quic_vnaralas@quicinc.com>
Date: Tue, 9 Nov 2021 12:05:55 +0530
Subject: [PATCH 097/120] ath11k: add trace log support
This change is to add trace log support for,
* WMI events
* WMI commands
* ath11k_dbg messages
* ath11k_dbg_dump messages
* ath11k_log_info messages
* ath11k_log_warn messages
* ath11k_log_err messages
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-00652-QCAHKSWPL_SILICONZ-1
Signed-off-by: Venkateswara Naralasetty <quic_vnaralas@quicinc.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1636439755-30419-1-git-send-email-quic_vnaralas@quicinc.com
---
drivers/net/wireless/ath/ath11k/debug.c | 12 +-
drivers/net/wireless/ath/ath11k/debug.h | 3 +-
drivers/net/wireless/ath/ath11k/trace.c | 1 +
drivers/net/wireless/ath/ath11k/trace.h | 172 ++++++++++++++++++++++++
drivers/net/wireless/ath/ath11k/wmi.c | 4 +
5 files changed, 187 insertions(+), 5 deletions(-)
--- a/drivers/net/wireless/ath/ath11k/debug.c
+++ b/drivers/net/wireless/ath/ath11k/debug.c
@@ -17,7 +17,7 @@ void ath11k_info(struct ath11k_base *ab,
va_start(args, fmt);
vaf.va = &args;
dev_info(ab->dev, "%pV", &vaf);
- /* TODO: Trace the log */
+ trace_ath11k_log_info(ab, &vaf);
va_end(args);
}
EXPORT_SYMBOL(ath11k_info);
@@ -32,7 +32,7 @@ void ath11k_err(struct ath11k_base *ab,
va_start(args, fmt);
vaf.va = &args;
dev_err(ab->dev, "%pV", &vaf);
- /* TODO: Trace the log */
+ trace_ath11k_log_err(ab, &vaf);
va_end(args);
}
EXPORT_SYMBOL(ath11k_err);
@@ -47,7 +47,7 @@ void ath11k_warn(struct ath11k_base *ab,
va_start(args, fmt);
vaf.va = &args;
dev_warn_ratelimited(ab->dev, "%pV", &vaf);
- /* TODO: Trace the log */
+ trace_ath11k_log_warn(ab, &vaf);
va_end(args);
}
EXPORT_SYMBOL(ath11k_warn);
@@ -68,7 +68,7 @@ void __ath11k_dbg(struct ath11k_base *ab
if (ath11k_debug_mask & mask)
dev_printk(KERN_DEBUG, ab->dev, "%pV", &vaf);
- /* TODO: trace log */
+ trace_ath11k_log_dbg(ab, mask, &vaf);
va_end(args);
}
@@ -100,6 +100,10 @@ void ath11k_dbg_dump(struct ath11k_base
dev_printk(KERN_DEBUG, ab->dev, "%s\n", linebuf);
}
}
+
+ /* tracing code doesn't like null strings */
+ trace_ath11k_log_dbg_dump(ab, msg ? msg : "", prefix ? prefix : "",
+ buf, len);
}
EXPORT_SYMBOL(ath11k_dbg_dump);
--- a/drivers/net/wireless/ath/ath11k/debug.h
+++ b/drivers/net/wireless/ath/ath11k/debug.h
@@ -60,7 +60,8 @@ static inline void ath11k_dbg_dump(struc
#define ath11k_dbg(ar, dbg_mask, fmt, ...) \
do { \
- if (ath11k_debug_mask & dbg_mask) \
+ if ((ath11k_debug_mask & dbg_mask) || \
+ trace_ath11k_log_dbg_enabled()) \
__ath11k_dbg(ar, dbg_mask, fmt, ##__VA_ARGS__); \
} while (0)
--- a/drivers/net/wireless/ath/ath11k/trace.c
+++ b/drivers/net/wireless/ath/ath11k/trace.c
@@ -7,3 +7,4 @@
#define CREATE_TRACE_POINTS
#include "trace.h"
+EXPORT_SYMBOL(__tracepoint_ath11k_log_dbg);
--- a/drivers/net/wireless/ath/ath11k/trace.h
+++ b/drivers/net/wireless/ath/ath11k/trace.h
@@ -14,12 +14,24 @@
#if !defined(CPTCFG_ATH11K_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 /* !CPTCFG_ATH11K_TRACING || __CHECKER__ */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM ath11k
+#define ATH11K_MSG_MAX 400
+
TRACE_EVENT(ath11k_htt_pktlog,
TP_PROTO(struct ath11k *ar, const void *buf, u16 buf_len,
u32 pktlog_checksum),
@@ -108,6 +120,166 @@ TRACE_EVENT(ath11k_htt_rxdesc,
)
);
+DECLARE_EVENT_CLASS(ath11k_log_event,
+ TP_PROTO(struct ath11k_base *ab, struct va_format *vaf),
+ TP_ARGS(ab, vaf),
+ TP_STRUCT__entry(
+ __string(device, dev_name(ab->dev))
+ __string(driver, dev_driver_string(ab->dev))
+ __dynamic_array(char, msg, ATH11K_MSG_MAX)
+ ),
+ TP_fast_assign(
+ __assign_str(device, dev_name(ab->dev));
+ __assign_str(driver, dev_driver_string(ab->dev));
+ WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
+ ATH11K_MSG_MAX,
+ vaf->fmt,
+ *vaf->va) >= ATH11K_MSG_MAX);
+ ),
+ TP_printk(
+ "%s %s %s",
+ __get_str(driver),
+ __get_str(device),
+ __get_str(msg)
+ )
+);
+
+DEFINE_EVENT(ath11k_log_event, ath11k_log_err,
+ TP_PROTO(struct ath11k_base *ab, struct va_format *vaf),
+ TP_ARGS(ab, vaf)
+);
+
+DEFINE_EVENT(ath11k_log_event, ath11k_log_warn,
+ TP_PROTO(struct ath11k_base *ab, struct va_format *vaf),
+ TP_ARGS(ab, vaf)
+);
+
+DEFINE_EVENT(ath11k_log_event, ath11k_log_info,
+ TP_PROTO(struct ath11k_base *ab, struct va_format *vaf),
+ TP_ARGS(ab, vaf)
+);
+
+TRACE_EVENT(ath11k_wmi_cmd,
+ TP_PROTO(struct ath11k_base *ab, int id, const void *buf, size_t buf_len),
+
+ TP_ARGS(ab, id, buf, buf_len),
+
+ TP_STRUCT__entry(
+ __string(device, dev_name(ab->dev))
+ __string(driver, dev_driver_string(ab->dev))
+ __field(unsigned int, id)
+ __field(size_t, buf_len)
+ __dynamic_array(u8, buf, buf_len)
+ ),
+
+ TP_fast_assign(
+ __assign_str(device, dev_name(ab->dev));
+ __assign_str(driver, dev_driver_string(ab->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(ath11k_wmi_event,
+ TP_PROTO(struct ath11k_base *ab, int id, const void *buf, size_t buf_len),
+
+ TP_ARGS(ab, id, buf, buf_len),
+
+ TP_STRUCT__entry(
+ __string(device, dev_name(ab->dev))
+ __string(driver, dev_driver_string(ab->dev))
+ __field(unsigned int, id)
+ __field(size_t, buf_len)
+ __dynamic_array(u8, buf, buf_len)
+ ),
+
+ TP_fast_assign(
+ __assign_str(device, dev_name(ab->dev));
+ __assign_str(driver, dev_driver_string(ab->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(ath11k_log_dbg,
+ TP_PROTO(struct ath11k_base *ab, unsigned int level, struct va_format *vaf),
+
+ TP_ARGS(ab, level, vaf),
+
+ TP_STRUCT__entry(
+ __string(device, dev_name(ab->dev))
+ __string(driver, dev_driver_string(ab->dev))
+ __field(unsigned int, level)
+ __dynamic_array(char, msg, ATH11K_MSG_MAX)
+ ),
+
+ TP_fast_assign(
+ __assign_str(device, dev_name(ab->dev));
+ __assign_str(driver, dev_driver_string(ab->dev));
+ __entry->level = level;
+ WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
+ ATH11K_MSG_MAX, vaf->fmt,
+ *vaf->va) >= ATH11K_MSG_MAX);
+ ),
+
+ TP_printk(
+ "%s %s %s",
+ __get_str(driver),
+ __get_str(device),
+ __get_str(msg)
+ )
+);
+
+TRACE_EVENT(ath11k_log_dbg_dump,
+ TP_PROTO(struct ath11k_base *ab, const char *msg, const char *prefix,
+ const void *buf, size_t buf_len),
+
+ TP_ARGS(ab, msg, prefix, buf, buf_len),
+
+ TP_STRUCT__entry(
+ __string(device, dev_name(ab->dev))
+ __string(driver, dev_driver_string(ab->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(ab->dev));
+ __assign_str(driver, dev_driver_string(ab->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)
+ )
+);
#endif /* _TRACE_H_ || TRACE_HEADER_MULTI_READ*/
/* we don't want to use include/trace/events */
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -249,6 +249,8 @@ static int ath11k_wmi_cmd_send_nowait(st
cmd_hdr = (struct wmi_cmd_hdr *)skb->data;
cmd_hdr->cmd_id = cmd;
+ trace_ath11k_wmi_cmd(ab, cmd_id, skb->data, skb->len);
+
memset(skb_cb, 0, sizeof(*skb_cb));
ret = ath11k_htc_send(&ab->htc, wmi->eid, skb);
@@ -7103,6 +7105,8 @@ static void ath11k_wmi_tlv_op_rx(struct
cmd_hdr = (struct wmi_cmd_hdr *)skb->data;
id = FIELD_GET(WMI_CMD_HDR_CMD_ID, (cmd_hdr->cmd_id));
+ trace_ath11k_wmi_event(ab, id, skb->data, skb->len);
+
if (skb_pull(skb, sizeof(struct wmi_cmd_hdr)) == NULL)
goto out;
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