devlink.h 7.2 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. #if IS_ENABLED(CONFIG_NET_DEVLINK)
  3. #undef TRACE_SYSTEM
  4. #define TRACE_SYSTEM devlink
  5. #if !defined(_TRACE_DEVLINK_H) || defined(TRACE_HEADER_MULTI_READ)
  6. #define _TRACE_DEVLINK_H
  7. #include <linux/device.h>
  8. #include <net/devlink.h>
  9. #include <linux/tracepoint.h>
  10. /*
  11. * Tracepoint for devlink hardware message:
  12. */
  13. TRACE_EVENT(devlink_hwmsg,
  14. TP_PROTO(const struct devlink *devlink, bool incoming,
  15. unsigned long type, const u8 *buf, size_t len),
  16. TP_ARGS(devlink, incoming, type, buf, len),
  17. TP_STRUCT__entry(
  18. __string(bus_name, devlink_to_dev(devlink)->bus->name)
  19. __string(dev_name, dev_name(devlink_to_dev(devlink)))
  20. __string(driver_name, devlink_to_dev(devlink)->driver->name)
  21. __field(bool, incoming)
  22. __field(unsigned long, type)
  23. __dynamic_array(u8, buf, len)
  24. __field(size_t, len)
  25. ),
  26. TP_fast_assign(
  27. __assign_str(bus_name, devlink_to_dev(devlink)->bus->name);
  28. __assign_str(dev_name, dev_name(devlink_to_dev(devlink)));
  29. __assign_str(driver_name, devlink_to_dev(devlink)->driver->name);
  30. __entry->incoming = incoming;
  31. __entry->type = type;
  32. memcpy(__get_dynamic_array(buf), buf, len);
  33. __entry->len = len;
  34. ),
  35. TP_printk("bus_name=%s dev_name=%s driver_name=%s incoming=%d type=%lu buf=0x[%*phD] len=%zu",
  36. __get_str(bus_name), __get_str(dev_name),
  37. __get_str(driver_name), __entry->incoming, __entry->type,
  38. (int) __entry->len, __get_dynamic_array(buf), __entry->len)
  39. );
  40. /*
  41. * Tracepoint for devlink hardware error:
  42. */
  43. TRACE_EVENT(devlink_hwerr,
  44. TP_PROTO(const struct devlink *devlink, int err, const char *msg),
  45. TP_ARGS(devlink, err, msg),
  46. TP_STRUCT__entry(
  47. __string(bus_name, devlink_to_dev(devlink)->bus->name)
  48. __string(dev_name, dev_name(devlink_to_dev(devlink)))
  49. __string(driver_name, devlink_to_dev(devlink)->driver->name)
  50. __field(int, err)
  51. __string(msg, msg)
  52. ),
  53. TP_fast_assign(
  54. __assign_str(bus_name, devlink_to_dev(devlink)->bus->name);
  55. __assign_str(dev_name, dev_name(devlink_to_dev(devlink)));
  56. __assign_str(driver_name, devlink_to_dev(devlink)->driver->name);
  57. __entry->err = err;
  58. __assign_str(msg, msg);
  59. ),
  60. TP_printk("bus_name=%s dev_name=%s driver_name=%s err=%d %s",
  61. __get_str(bus_name), __get_str(dev_name),
  62. __get_str(driver_name), __entry->err, __get_str(msg))
  63. );
  64. /*
  65. * Tracepoint for devlink health message:
  66. */
  67. TRACE_EVENT(devlink_health_report,
  68. TP_PROTO(const struct devlink *devlink, const char *reporter_name,
  69. const char *msg),
  70. TP_ARGS(devlink, reporter_name, msg),
  71. TP_STRUCT__entry(
  72. __string(bus_name, devlink_to_dev(devlink)->bus->name)
  73. __string(dev_name, dev_name(devlink_to_dev(devlink)))
  74. __string(driver_name, devlink_to_dev(devlink)->driver->name)
  75. __string(reporter_name, reporter_name)
  76. __string(msg, msg)
  77. ),
  78. TP_fast_assign(
  79. __assign_str(bus_name, devlink_to_dev(devlink)->bus->name);
  80. __assign_str(dev_name, dev_name(devlink_to_dev(devlink)));
  81. __assign_str(driver_name, devlink_to_dev(devlink)->driver->name);
  82. __assign_str(reporter_name, reporter_name);
  83. __assign_str(msg, msg);
  84. ),
  85. TP_printk("bus_name=%s dev_name=%s driver_name=%s reporter_name=%s: %s",
  86. __get_str(bus_name), __get_str(dev_name),
  87. __get_str(driver_name), __get_str(reporter_name),
  88. __get_str(msg))
  89. );
  90. /*
  91. * Tracepoint for devlink health recover aborted message:
  92. */
  93. TRACE_EVENT(devlink_health_recover_aborted,
  94. TP_PROTO(const struct devlink *devlink, const char *reporter_name,
  95. bool health_state, u64 time_since_last_recover),
  96. TP_ARGS(devlink, reporter_name, health_state, time_since_last_recover),
  97. TP_STRUCT__entry(
  98. __string(bus_name, devlink_to_dev(devlink)->bus->name)
  99. __string(dev_name, dev_name(devlink_to_dev(devlink)))
  100. __string(driver_name, devlink_to_dev(devlink)->driver->name)
  101. __string(reporter_name, reporter_name)
  102. __field(bool, health_state)
  103. __field(u64, time_since_last_recover)
  104. ),
  105. TP_fast_assign(
  106. __assign_str(bus_name, devlink_to_dev(devlink)->bus->name);
  107. __assign_str(dev_name, dev_name(devlink_to_dev(devlink)));
  108. __assign_str(driver_name, devlink_to_dev(devlink)->driver->name);
  109. __assign_str(reporter_name, reporter_name);
  110. __entry->health_state = health_state;
  111. __entry->time_since_last_recover = time_since_last_recover;
  112. ),
  113. TP_printk("bus_name=%s dev_name=%s driver_name=%s reporter_name=%s: health_state=%d time_since_last_recover=%llu recover aborted",
  114. __get_str(bus_name), __get_str(dev_name),
  115. __get_str(driver_name), __get_str(reporter_name),
  116. __entry->health_state,
  117. __entry->time_since_last_recover)
  118. );
  119. /*
  120. * Tracepoint for devlink health reporter state update:
  121. */
  122. TRACE_EVENT(devlink_health_reporter_state_update,
  123. TP_PROTO(const struct devlink *devlink, const char *reporter_name,
  124. bool new_state),
  125. TP_ARGS(devlink, reporter_name, new_state),
  126. TP_STRUCT__entry(
  127. __string(bus_name, devlink_to_dev(devlink)->bus->name)
  128. __string(dev_name, dev_name(devlink_to_dev(devlink)))
  129. __string(driver_name, devlink_to_dev(devlink)->driver->name)
  130. __string(reporter_name, reporter_name)
  131. __field(u8, new_state)
  132. ),
  133. TP_fast_assign(
  134. __assign_str(bus_name, devlink_to_dev(devlink)->bus->name);
  135. __assign_str(dev_name, dev_name(devlink_to_dev(devlink)));
  136. __assign_str(driver_name, devlink_to_dev(devlink)->driver->name);
  137. __assign_str(reporter_name, reporter_name);
  138. __entry->new_state = new_state;
  139. ),
  140. TP_printk("bus_name=%s dev_name=%s driver_name=%s reporter_name=%s: new_state=%d",
  141. __get_str(bus_name), __get_str(dev_name),
  142. __get_str(driver_name), __get_str(reporter_name),
  143. __entry->new_state)
  144. );
  145. /*
  146. * Tracepoint for devlink packet trap:
  147. */
  148. TRACE_EVENT(devlink_trap_report,
  149. TP_PROTO(const struct devlink *devlink, struct sk_buff *skb,
  150. const struct devlink_trap_metadata *metadata),
  151. TP_ARGS(devlink, skb, metadata),
  152. TP_STRUCT__entry(
  153. __string(bus_name, devlink_to_dev(devlink)->bus->name)
  154. __string(dev_name, dev_name(devlink_to_dev(devlink)))
  155. __string(driver_name, devlink_to_dev(devlink)->driver->name)
  156. __string(trap_name, metadata->trap_name)
  157. __string(trap_group_name, metadata->trap_group_name)
  158. __array(char, input_dev_name, IFNAMSIZ)
  159. ),
  160. TP_fast_assign(
  161. struct net_device *input_dev = metadata->input_dev;
  162. __assign_str(bus_name, devlink_to_dev(devlink)->bus->name);
  163. __assign_str(dev_name, dev_name(devlink_to_dev(devlink)));
  164. __assign_str(driver_name, devlink_to_dev(devlink)->driver->name);
  165. __assign_str(trap_name, metadata->trap_name);
  166. __assign_str(trap_group_name, metadata->trap_group_name);
  167. strscpy(__entry->input_dev_name, input_dev ? input_dev->name : "NULL", IFNAMSIZ);
  168. ),
  169. TP_printk("bus_name=%s dev_name=%s driver_name=%s trap_name=%s "
  170. "trap_group_name=%s input_dev_name=%s", __get_str(bus_name),
  171. __get_str(dev_name), __get_str(driver_name),
  172. __get_str(trap_name), __get_str(trap_group_name),
  173. __entry->input_dev_name)
  174. );
  175. #endif /* _TRACE_DEVLINK_H */
  176. /* This part must be outside protection */
  177. #include <trace/define_trace.h>
  178. #else /* CONFIG_NET_DEVLINK */
  179. #if !defined(_TRACE_DEVLINK_H)
  180. #define _TRACE_DEVLINK_H
  181. #include <net/devlink.h>
  182. static inline void trace_devlink_hwmsg(const struct devlink *devlink,
  183. bool incoming, unsigned long type,
  184. const u8 *buf, size_t len)
  185. {
  186. }
  187. static inline void trace_devlink_hwerr(const struct devlink *devlink,
  188. int err, const char *msg)
  189. {
  190. }
  191. #endif /* _TRACE_DEVLINK_H */
  192. #endif