include/trace/events/devlink.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #if IS_ENABLED(CONFIG_NET_DEVLINK)
   3
   4 #undef TRACE_SYSTEM
   5 #define TRACE_SYSTEM devlink
   6
   7 #if !defined(_TRACE_DEVLINK_H) || defined(TRACE_HEADER_MULTI_READ)
   8 #define _TRACE_DEVLINK_H
   9
  10 #include <linux/device.h>
  11 #include <net/devlink.h>
  12 #include <linux/tracepoint.h>
  13
  14 /*
  15  * Tracepoint for devlink hardware message:
  16  */
  17 TRACE_EVENT(devlink_hwmsg,
  18         TP_PROTO(const struct devlink *devlink, bool incoming,
  19                  unsigned long type, const u8 *buf, size_t len),
  20
  21         TP_ARGS(devlink, incoming, type, buf, len),
  22
  23         TP_STRUCT__entry(
  24                 __string(bus_name, devlink->dev->bus->name)
  25                 __string(dev_name, dev_name(devlink->dev))
  26                 __string(driver_name, devlink->dev->driver->name)
  27                 __field(bool, incoming)
  28                 __field(unsigned long, type)
  29                 __dynamic_array(u8, buf, len)
  30                 __field(size_t, len)
  31         ),
  32
  33         TP_fast_assign(
  34                 __assign_str(bus_name, devlink->dev->bus->name);
  35                 __assign_str(dev_name, dev_name(devlink->dev));
  36                 __assign_str(driver_name, devlink->dev->driver->name);
  37                 __entry->incoming = incoming;
  38                 __entry->type = type;
  39                 memcpy(__get_dynamic_array(buf), buf, len);
  40                 __entry->len = len;
  41         ),
  42
  43         TP_printk("bus_name=%s dev_name=%s driver_name=%s incoming=%d type=%lu buf=0x[%*phD] len=%zu",
  44                   __get_str(bus_name), __get_str(dev_name),
  45                   __get_str(driver_name), __entry->incoming, __entry->type,
  46                   (int) __entry->len, __get_dynamic_array(buf), __entry->len)
  47 );
  48
  49 #endif /* _TRACE_DEVLINK_H */
  50
  51 /* This part must be outside protection */
  52 #include <trace/define_trace.h>
  53
  54 #else /* CONFIG_NET_DEVLINK */
  55
  56 #if !defined(_TRACE_DEVLINK_H)
  57 #define _TRACE_DEVLINK_H
  58
  59 #include <net/devlink.h>
  60
  61 static inline void trace_devlink_hwmsg(const struct devlink *devlink,
  62                                        bool incoming, unsigned long type,
  63                                        const u8 *buf, size_t len)
  64 {
  65 }
  66
  67 #endif /* _TRACE_DEVLINK_H */
  68
  69 #endif