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ieee802154: Add trace events for rdev->ops

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Enabling tracing via

 echo 1 > /sys/kernel/debug/tracing/events/cfg802154/enable

enables event tracing like

 iwpan dev wpan0 set pan_id 0xbeef
 cat /sys/kernel/debug/tracing/trace
 # tracer: nop
 #
 # entries-in-buffer/entries-written: 2/2   #P:1
 #
 #                              _-----=> irqs-off
 #                             / _----=> need-resched
 #                            | / _---=> hardirq/softirq
 #                            || / _--=> preempt-depth
 #                            ||| /     delay
 #           TASK-PID   CPU#  ||||    TIMESTAMP  FUNCTION
 #              | |       |   ||||       |         |
            iwpan-2663  [000] ....   170.369142: 802154_rdev_set_pan_id: phy0, wpan_dev(1), pan id: 0xbeef
            iwpan-2663  [000] ....   170.369177: 802154_rdev_return_int: phy0, returned: 0

Signed-off-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Guido Günther 2015-04-30 17:44:55 +02:00 committed by Marcel Holtmann
parent 42fb23e2f5
commit 1cc800e7aa
4 changed files with 322 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
net/ieee802154/Makefile
View File

@ -3,7 +3,9 @@ obj-$(CONFIG_IEEE802154_SOCKET) += ieee802154_socket.o
obj-y += 6lowpan/
ieee802154-y := netlink.o nl-mac.o nl-phy.o nl_policy.o core.o \
header_ops.o sysfs.o nl802154.o
header_ops.o sysfs.o nl802154.o trace.o
ieee802154_socket-y := socket.o
CFLAGS_trace.o := -I$(src)
ccflags-y += -D__CHECK_ENDIAN__

77
net/ieee802154/rdev-ops.h
View File

@ -4,6 +4,7 @@
#include <net/cfg802154.h>
#include "core.h"
#include "trace.h"
static inline struct net_device *
rdev_add_virtual_intf_deprecated(struct cfg802154_registered_device *rdev,
@ -24,73 +25,127 @@ static inline int
rdev_add_virtual_intf(struct cfg802154_registered_device *rdev, char *name,
enum nl802154_iftype type, __le64 extended_addr)
{
return rdev->ops->add_virtual_intf(&rdev->wpan_phy, name, type,
int ret;
trace_802154_rdev_add_virtual_intf(&rdev->wpan_phy, name, type,
extended_addr);
ret = rdev->ops->add_virtual_intf(&rdev->wpan_phy, name, type,
extended_addr);
trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
return ret;
}
static inline int
rdev_del_virtual_intf(struct cfg802154_registered_device *rdev,
struct wpan_dev *wpan_dev)
{
return rdev->ops->del_virtual_intf(&rdev->wpan_phy, wpan_dev);
int ret;
trace_802154_rdev_del_virtual_intf(&rdev->wpan_phy, wpan_dev);
ret = rdev->ops->del_virtual_intf(&rdev->wpan_phy, wpan_dev);
trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
return ret;
}
static inline int
rdev_set_channel(struct cfg802154_registered_device *rdev, u8 page, u8 channel)
{
return rdev->ops->set_channel(&rdev->wpan_phy, page, channel);
int ret;
trace_802154_rdev_set_channel(&rdev->wpan_phy, page, channel);
ret = rdev->ops->set_channel(&rdev->wpan_phy, page, channel);
trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
return ret;
}
static inline int
rdev_set_cca_mode(struct cfg802154_registered_device *rdev,
const struct wpan_phy_cca *cca)
{
return rdev->ops->set_cca_mode(&rdev->wpan_phy, cca);
int ret;
trace_802154_rdev_set_cca_mode(&rdev->wpan_phy, cca);
ret = rdev->ops->set_cca_mode(&rdev->wpan_phy, cca);
trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
return ret;
}
static inline int
rdev_set_pan_id(struct cfg802154_registered_device *rdev,
struct wpan_dev *wpan_dev, __le16 pan_id)
{
return rdev->ops->set_pan_id(&rdev->wpan_phy, wpan_dev, pan_id);
int ret;
trace_802154_rdev_set_pan_id(&rdev->wpan_phy, wpan_dev, pan_id);
ret = rdev->ops->set_pan_id(&rdev->wpan_phy, wpan_dev, pan_id);
trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
return ret;
}
static inline int
rdev_set_short_addr(struct cfg802154_registered_device *rdev,
struct wpan_dev *wpan_dev, __le16 short_addr)
{
return rdev->ops->set_short_addr(&rdev->wpan_phy, wpan_dev, short_addr);
int ret;
trace_802154_rdev_set_short_addr(&rdev->wpan_phy, wpan_dev, short_addr);
ret = rdev->ops->set_short_addr(&rdev->wpan_phy, wpan_dev, short_addr);
trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
return ret;
}
static inline int
rdev_set_backoff_exponent(struct cfg802154_registered_device *rdev,
struct wpan_dev *wpan_dev, u8 min_be, u8 max_be)
{
return rdev->ops->set_backoff_exponent(&rdev->wpan_phy, wpan_dev,
int ret;
trace_802154_rdev_set_backoff_exponent(&rdev->wpan_phy, wpan_dev,
min_be, max_be);
ret = rdev->ops->set_backoff_exponent(&rdev->wpan_phy, wpan_dev,
min_be, max_be);
trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
return ret;
}
static inline int
rdev_set_max_csma_backoffs(struct cfg802154_registered_device *rdev,
struct wpan_dev *wpan_dev, u8 max_csma_backoffs)
{
return rdev->ops->set_max_csma_backoffs(&rdev->wpan_phy, wpan_dev,
max_csma_backoffs);
int ret;
trace_802154_rdev_set_csma_backoffs(&rdev->wpan_phy, wpan_dev,
max_csma_backoffs);
ret = rdev->ops->set_max_csma_backoffs(&rdev->wpan_phy, wpan_dev,
max_csma_backoffs);
trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
return ret;
}
static inline int
rdev_set_max_frame_retries(struct cfg802154_registered_device *rdev,
struct wpan_dev *wpan_dev, s8 max_frame_retries)
{
return rdev->ops->set_max_frame_retries(&rdev->wpan_phy, wpan_dev,
int ret;
trace_802154_rdev_set_max_frame_retries(&rdev->wpan_phy, wpan_dev,
max_frame_retries);
ret = rdev->ops->set_max_frame_retries(&rdev->wpan_phy, wpan_dev,
max_frame_retries);
trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
return ret;
}
static inline int
rdev_set_lbt_mode(struct cfg802154_registered_device *rdev,
struct wpan_dev *wpan_dev, bool mode)
{
return rdev->ops->set_lbt_mode(&rdev->wpan_phy, wpan_dev, mode);
int ret;
trace_802154_rdev_set_lbt_mode(&rdev->wpan_phy, wpan_dev, mode);
ret = rdev->ops->set_lbt_mode(&rdev->wpan_phy, wpan_dev, mode);
trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
return ret;
}
#endif /* __CFG802154_RDEV_OPS */

7
net/ieee802154/trace.c Normal file
View File

@ -0,0 +1,7 @@
#include <linux/module.h>
#ifndef __CHECKER__
#define CREATE_TRACE_POINTS
#include "trace.h"
#endif

246
net/ieee802154/trace.h Normal file
View File

@ -0,0 +1,246 @@
/* Based on net/wireless/tracing.h */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM cfg802154
#if !defined(__RDEV_CFG802154_OPS_TRACE) || defined(TRACE_HEADER_MULTI_READ)
#define __RDEV_CFG802154_OPS_TRACE
#include <linux/tracepoint.h>
#include <net/cfg802154.h>
#define MAXNAME 32
#define WPAN_PHY_ENTRY __array(char, wpan_phy_name, MAXNAME)
#define WPAN_PHY_ASSIGN strlcpy(__entry->wpan_phy_name, \
wpan_phy_name(wpan_phy), \
MAXNAME)
#define WPAN_PHY_PR_FMT "%s"
#define WPAN_PHY_PR_ARG __entry->wpan_phy_name
#define WPAN_DEV_ENTRY __field(u32, identifier)
#define WPAN_DEV_ASSIGN (__entry->identifier) = (!IS_ERR_OR_NULL(wpan_dev) \
? wpan_dev->identifier : 0)
#define WPAN_DEV_PR_FMT "wpan_dev(%u)"
#define WPAN_DEV_PR_ARG (__entry->identifier)
#define WPAN_CCA_ENTRY __field(enum nl802154_cca_modes, cca_mode) \
__field(enum nl802154_cca_opts, cca_opt)
#define WPAN_CCA_ASSIGN \
do { \
(__entry->cca_mode) = cca->mode; \
(__entry->cca_opt) = cca->opt; \
} while (0)
#define WPAN_CCA_PR_FMT "cca_mode: %d, cca_opt: %d"
#define WPAN_CCA_PR_ARG __entry->cca_mode, __entry->cca_opt
#define BOOL_TO_STR(bo) (bo) ? "true" : "false"
/*************************************************************
* rdev->ops traces *
*************************************************************/
TRACE_EVENT(802154_rdev_add_virtual_intf,
TP_PROTO(struct wpan_phy *wpan_phy, char *name,
enum nl802154_iftype type, __le64 extended_addr),
TP_ARGS(wpan_phy, name, type, extended_addr),
TP_STRUCT__entry(
WPAN_PHY_ENTRY
__string(vir_intf_name, name ? name : "<noname>")
__field(enum nl802154_iftype, type)
__field(__le64, extended_addr)
),
TP_fast_assign(
WPAN_PHY_ASSIGN;
__assign_str(vir_intf_name, name ? name : "<noname>");
__entry->type = type;
__entry->extended_addr = extended_addr;
),
TP_printk(WPAN_PHY_PR_FMT ", virtual intf name: %s, type: %d, ea %llx",
WPAN_PHY_PR_ARG, __get_str(vir_intf_name), __entry->type,
__entry->extended_addr)
);
TRACE_EVENT(802154_rdev_del_virtual_intf,
TP_PROTO(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev),
TP_ARGS(wpan_phy, wpan_dev),
TP_STRUCT__entry(
WPAN_PHY_ENTRY
WPAN_DEV_ENTRY
),
TP_fast_assign(
WPAN_PHY_ASSIGN;
WPAN_DEV_ASSIGN;
),
TP_printk(WPAN_PHY_PR_FMT ", " WPAN_DEV_PR_FMT, WPAN_PHY_PR_ARG,
WPAN_DEV_PR_ARG)
);
TRACE_EVENT(802154_rdev_set_channel,
TP_PROTO(struct wpan_phy *wpan_phy, u8 page, u8 channel),
TP_ARGS(wpan_phy, page, channel),
TP_STRUCT__entry(
WPAN_PHY_ENTRY
__field(u8, page)
__field(u8, channel)
),
TP_fast_assign(
WPAN_PHY_ASSIGN;
__entry->page = page;
__entry->channel = channel;
),
TP_printk(WPAN_PHY_PR_FMT ", page: %d, channel: %d", WPAN_PHY_PR_ARG,
__entry->page, __entry->channel)
);
TRACE_EVENT(802154_rdev_set_cca_mode,
TP_PROTO(struct wpan_phy *wpan_phy, const struct wpan_phy_cca *cca),
TP_ARGS(wpan_phy, cca),
TP_STRUCT__entry(
WPAN_PHY_ENTRY
WPAN_CCA_ENTRY
),
TP_fast_assign(
WPAN_PHY_ASSIGN;
WPAN_CCA_ASSIGN;
),
TP_printk(WPAN_PHY_PR_FMT ", " WPAN_CCA_PR_FMT, WPAN_PHY_PR_ARG,
WPAN_CCA_PR_ARG)
);
DECLARE_EVENT_CLASS(802154_le16_template,
TP_PROTO(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
__le16 le16arg),
TP_ARGS(wpan_phy, wpan_dev, le16arg),
TP_STRUCT__entry(
WPAN_PHY_ENTRY
WPAN_DEV_ENTRY
__field(__le16, le16arg)
),
TP_fast_assign(
WPAN_PHY_ASSIGN;
WPAN_DEV_ASSIGN;
__entry->le16arg = le16arg;
),
TP_printk(WPAN_PHY_PR_FMT ", " WPAN_DEV_PR_FMT ", pan id: 0x%04x",
WPAN_PHY_PR_ARG, WPAN_DEV_PR_ARG,
__le16_to_cpu(__entry->le16arg))
);
DEFINE_EVENT(802154_le16_template, 802154_rdev_set_pan_id,
TP_PROTO(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
__le16 le16arg),
TP_ARGS(wpan_phy, wpan_dev, le16arg)
);
DEFINE_EVENT_PRINT(802154_le16_template, 802154_rdev_set_short_addr,
TP_PROTO(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
__le16 le16arg),
TP_ARGS(wpan_phy, wpan_dev, le16arg),
TP_printk(WPAN_PHY_PR_FMT ", " WPAN_DEV_PR_FMT ", sa: 0x%04x",
WPAN_PHY_PR_ARG, WPAN_DEV_PR_ARG, __entry->le16arg)
);
TRACE_EVENT(802154_rdev_set_backoff_exponent,
TP_PROTO(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
u8 min_be, u8 max_be),
TP_ARGS(wpan_phy, wpan_dev, min_be, max_be),
TP_STRUCT__entry(
WPAN_PHY_ENTRY
WPAN_DEV_ENTRY
__field(u8, min_be)
__field(u8, max_be)
),
TP_fast_assign(
WPAN_PHY_ASSIGN;
WPAN_DEV_ASSIGN;
__entry->min_be = min_be;
__entry->max_be = max_be;
),
TP_printk(WPAN_PHY_PR_FMT ", " WPAN_DEV_PR_FMT
", min be: %d, max_be: %d", WPAN_PHY_PR_ARG,
WPAN_DEV_PR_ARG, __entry->min_be, __entry->max_be)
);
TRACE_EVENT(802154_rdev_set_csma_backoffs,
TP_PROTO(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
u8 max_csma_backoffs),
TP_ARGS(wpan_phy, wpan_dev, max_csma_backoffs),
TP_STRUCT__entry(
WPAN_PHY_ENTRY
WPAN_DEV_ENTRY
__field(u8, max_csma_backoffs)
),
TP_fast_assign(
WPAN_PHY_ASSIGN;
WPAN_DEV_ASSIGN;
__entry->max_csma_backoffs = max_csma_backoffs;
),
TP_printk(WPAN_PHY_PR_FMT ", " WPAN_DEV_PR_FMT
", max csma backoffs: %d", WPAN_PHY_PR_ARG,
WPAN_DEV_PR_ARG, __entry->max_csma_backoffs)
);
TRACE_EVENT(802154_rdev_set_max_frame_retries,
TP_PROTO(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
s8 max_frame_retries),
TP_ARGS(wpan_phy, wpan_dev, max_frame_retries),
TP_STRUCT__entry(
WPAN_PHY_ENTRY
WPAN_DEV_ENTRY
__field(s8, max_frame_retries)
),
TP_fast_assign(
WPAN_PHY_ASSIGN;
WPAN_DEV_ASSIGN;
__entry->max_frame_retries = max_frame_retries;
),
TP_printk(WPAN_PHY_PR_FMT ", " WPAN_DEV_PR_FMT
", max frame retries: %d", WPAN_PHY_PR_ARG,
WPAN_DEV_PR_ARG, __entry->max_frame_retries)
);
TRACE_EVENT(802154_rdev_set_lbt_mode,
TP_PROTO(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
bool mode),
TP_ARGS(wpan_phy, wpan_dev, mode),
TP_STRUCT__entry(
WPAN_PHY_ENTRY
WPAN_DEV_ENTRY
__field(bool, mode)
),
TP_fast_assign(
WPAN_PHY_ASSIGN;
WPAN_DEV_ASSIGN;
__entry->mode = mode;
),
TP_printk(WPAN_PHY_PR_FMT ", " WPAN_DEV_PR_FMT
", lbt mode: %s", WPAN_PHY_PR_ARG,
WPAN_DEV_PR_ARG, BOOL_TO_STR(__entry->mode))
);
TRACE_EVENT(802154_rdev_return_int,
TP_PROTO(struct wpan_phy *wpan_phy, int ret),
TP_ARGS(wpan_phy, ret),
TP_STRUCT__entry(
WPAN_PHY_ENTRY
__field(int, ret)
),
TP_fast_assign(
WPAN_PHY_ASSIGN;
__entry->ret = ret;
),
TP_printk(WPAN_PHY_PR_FMT ", returned: %d", WPAN_PHY_PR_ARG,
__entry->ret)
);
#endif /* !__RDEV_CFG802154_OPS_TRACE || TRACE_HEADER_MULTI_READ */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE trace
#include <trace/define_trace.h>