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 <eranbe@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 14 insertions, 0 deletions

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);
@@ -1205,6 +1213,12 @@ devlink_health_report(struct devlink_health_reporter *reporter,
 }
 
 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)
 {
 }