include/trace/events/devlink.h

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