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authorEran Ben Elisha <eranbe@mellanox.com>2019-03-03 11:57:30 +0300
committerDavid S. Miller <davem@davemloft.net>2019-03-04 22:00:43 +0300
commit3167b27a7ded84623f50e4fb4cab846e75c4a210 (patch)
tree27c059516dae5978ff67f9e64f16ffbd6d598abf /net
parenta0a21adb6a935c24111ae3a68ed406025753ce98 (diff)
downloadlinux-3167b27a7ded84623f50e4fb4cab846e75c4a210.tar.xz
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>
Diffstat (limited to 'net')
-rw-r--r--net/core/devlink.c22
1 files changed, 17 insertions, 5 deletions
diff --git a/net/core/devlink.c b/net/core/devlink.c
index 376e01a70c6d..78e22cea4cc7 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -4409,11 +4409,6 @@ struct devlink_health_reporter {
u64 last_recovery_ts;
};
-enum devlink_health_reporter_state {
- DEVLINK_HEALTH_REPORTER_STATE_HEALTHY,
- DEVLINK_HEALTH_REPORTER_STATE_ERROR,
-};
-
void *
devlink_health_reporter_priv(struct devlink_health_reporter *reporter)
{
@@ -4498,6 +4493,23 @@ devlink_health_reporter_destroy(struct devlink_health_reporter *reporter)
}
EXPORT_SYMBOL_GPL(devlink_health_reporter_destroy);
+void
+devlink_health_reporter_state_update(struct devlink_health_reporter *reporter,
+ enum devlink_health_reporter_state state)
+{
+ if (WARN_ON(state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY &&
+ state != DEVLINK_HEALTH_REPORTER_STATE_ERROR))
+ return;
+
+ if (reporter->health_state == state)
+ return;
+
+ reporter->health_state = state;
+ trace_devlink_health_reporter_state_update(reporter->devlink,
+ reporter->ops->name, state);
+}
+EXPORT_SYMBOL_GPL(devlink_health_reporter_state_update);
+
static int
devlink_health_reporter_recover(struct devlink_health_reporter *reporter,
void *priv_ctx)