From 3167b27a7ded84623f50e4fb4cab846e75c4a210 Mon Sep 17 00:00:00 2001 From: Eran Ben Elisha Date: Sun, 3 Mar 2019 10:57:30 +0200 Subject: devlink: Add support for direct reporter health state update It is possible that a reporter state will be updated due to a recover flow which is not triggered by a devlink health related operation, but as a side effect of some other operation in the system. Expose devlink health API for a direct update of a reporter status. Move devlink_health_reporter_state enum definition to devlink.h so it could be used from drivers as a parameter of devlink_health_reporter_state_update. In addition, add trace_devlink_health_reporter_state_update to provide user notification for reporter state change. Signed-off-by: Eran Ben Elisha Acked-by: Jiri Pirko Signed-off-by: David S. Miller --- include/net/devlink.h | 14 ++++++++++++++ include/trace/events/devlink.h | 31 +++++++++++++++++++++++++++++++ 2 files changed, 45 insertions(+) (limited to 'include') diff --git a/include/net/devlink.h b/include/net/devlink.h index 7f5a0bdca228..63de99e09f04 100644 --- a/include/net/devlink.h +++ b/include/net/devlink.h @@ -447,6 +447,11 @@ typedef void devlink_snapshot_data_dest_t(const void *data); struct devlink_fmsg; struct devlink_health_reporter; +enum devlink_health_reporter_state { + DEVLINK_HEALTH_REPORTER_STATE_HEALTHY, + DEVLINK_HEALTH_REPORTER_STATE_ERROR, +}; + /** * struct devlink_health_reporter_ops - Reporter operations * @name: reporter name @@ -715,6 +720,9 @@ void * devlink_health_reporter_priv(struct devlink_health_reporter *reporter); int devlink_health_report(struct devlink_health_reporter *reporter, const char *msg, void *priv_ctx); +void +devlink_health_reporter_state_update(struct devlink_health_reporter *reporter, + enum devlink_health_reporter_state state); void devlink_compat_running_version(struct net_device *dev, char *buf, size_t len); @@ -1204,6 +1212,12 @@ devlink_health_report(struct devlink_health_reporter *reporter, return 0; } +static inline void +devlink_health_reporter_state_update(struct devlink_health_reporter *reporter, + enum devlink_health_reporter_state state) +{ +} + static inline void devlink_compat_running_version(struct net_device *dev, char *buf, size_t len) { diff --git a/include/trace/events/devlink.h b/include/trace/events/devlink.h index 191ddf67d769..6f60a78d9a7e 100644 --- a/include/trace/events/devlink.h +++ b/include/trace/events/devlink.h @@ -140,6 +140,37 @@ TRACE_EVENT(devlink_health_recover_aborted, __entry->time_since_last_recover) ); +/* + * Tracepoint for devlink health reporter state update: + */ +TRACE_EVENT(devlink_health_reporter_state_update, + TP_PROTO(const struct devlink *devlink, const char *reporter_name, + bool new_state), + + TP_ARGS(devlink, reporter_name, new_state), + + TP_STRUCT__entry( + __string(bus_name, devlink->dev->bus->name) + __string(dev_name, dev_name(devlink->dev)) + __string(driver_name, devlink->dev->driver->name) + __string(reporter_name, reporter_name) + __field(u8, new_state) + ), + + 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); + __assign_str(reporter_name, reporter_name); + __entry->new_state = new_state; + ), + + TP_printk("bus_name=%s dev_name=%s driver_name=%s reporter_name=%s: new_state=%d", + __get_str(bus_name), __get_str(dev_name), + __get_str(driver_name), __get_str(reporter_name), + __entry->new_state) +); + #endif /* _TRACE_DEVLINK_H */ /* This part must be outside protection */ -- cgit v1.2.3