devlink: add hardware errors tracing facility (57186a5f) · Commits · 戴 / test

include/trace/events/devlink.h

+33 −0

Original line number	Diff line number	Diff line
		@@ -46,6 +46,35 @@ TRACE_EVENT(devlink_hwmsg,
		(int) __entry->len, __get_dynamic_array(buf), __entry->len)
		);

		/*
		* Tracepoint for devlink hardware error:
		*/
		TRACE_EVENT(devlink_hwerr,
		TP_PROTO(const struct devlink devlink, int err, const char msg),

		TP_ARGS(devlink, err, msg),

		TP_STRUCT__entry(
		__string(bus_name, devlink->dev->bus->name)
		__string(dev_name, dev_name(devlink->dev))
		__string(driver_name, devlink->dev->driver->name)
		__field(int, err)
		__string(msg, msg)
		),

		TP_fast_assign(
		__assign_str(bus_name, devlink->dev->bus->name);
		__assign_str(dev_name, dev_name(devlink->dev));
		__assign_str(driver_name, devlink->dev->driver->name);
		__entry->err = err;
		__assign_str(msg, msg);
		),

		TP_printk("bus_name=%s dev_name=%s driver_name=%s err=%d %s",
		__get_str(bus_name), __get_str(dev_name),
		__get_str(driver_name), __entry->err, __get_str(msg))
		);

		#endif /* _TRACE_DEVLINK_H */

		/* This part must be outside protection */
		@@ -64,6 +93,10 @@ static inline void trace_devlink_hwmsg(const struct devlink *devlink,
		{
		}

		static inline void trace_devlink_hwerr(const struct devlink *devlink,
		int err, const char *msg)
		{
		}
		#endif /* _TRACE_DEVLINK_H */

		#endif

+1 −0

Original line number	Diff line number	Diff line
		@@ -81,6 +81,7 @@ struct devlink_dpipe_header devlink_dpipe_header_ipv6 = {
		EXPORT_SYMBOL(devlink_dpipe_header_ipv6);

		EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwmsg);
		EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwerr);

		static LIST_HEAD(devlink_list);