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authorIdo Schimmel2020-09-29 11:15:50 +0300
committerDavid S. Miller2020-09-30 18:01:26 -0700
commit5b88823bfe0875b327cc041017b5dcbec9dcbcc8 (patch)
treef2200fe9d945c0969fdc67dd9d7103769e939b15 /include/trace
parent8333c1c4ee61c873bdb5327dba858f58de2a98d8 (diff)
devlink: Add a tracepoint for trap reports
Add a tracepoint for trap reports so that drop monitor could register its probe on it. Use trace_devlink_trap_report_enabled() to avoid wasting cycles setting the trap metadata if the tracepoint is not enabled. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/devlink.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/include/trace/events/devlink.h b/include/trace/events/devlink.h
index 6f60a78d9a7e..44d8e2981065 100644
--- a/include/trace/events/devlink.h
+++ b/include/trace/events/devlink.h
@@ -171,6 +171,43 @@ TRACE_EVENT(devlink_health_reporter_state_update,
__entry->new_state)
);
+/*
+ * Tracepoint for devlink packet trap:
+ */
+TRACE_EVENT(devlink_trap_report,
+ TP_PROTO(const struct devlink *devlink, struct sk_buff *skb,
+ const struct devlink_trap_metadata *metadata),
+
+ TP_ARGS(devlink, skb, metadata),
+
+ 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(trap_name, metadata->trap_name)
+ __string(trap_group_name, metadata->trap_group_name)
+ __dynamic_array(char, input_dev_name, IFNAMSIZ)
+ ),
+
+ TP_fast_assign(
+ struct net_device *input_dev = metadata->input_dev;
+
+ __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(trap_name, metadata->trap_name);
+ __assign_str(trap_group_name, metadata->trap_group_name);
+ __assign_str(input_dev_name,
+ (input_dev ? input_dev->name : "NULL"));
+ ),
+
+ TP_printk("bus_name=%s dev_name=%s driver_name=%s trap_name=%s "
+ "trap_group_name=%s input_dev_name=%s", __get_str(bus_name),
+ __get_str(dev_name), __get_str(driver_name),
+ __get_str(trap_name), __get_str(trap_group_name),
+ __get_str(input_dev_name))
+);
+
#endif /* _TRACE_DEVLINK_H */
/* This part must be outside protection */