From 5b88823bfe0875b327cc041017b5dcbec9dcbcc8 Mon Sep 17 00:00:00 2001 From: Ido Schimmel Date: Tue, 29 Sep 2020 11:15:50 +0300 Subject: 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 Reviewed-by: Jiri Pirko Signed-off-by: David S. Miller --- include/net/devlink.h | 14 ++++++++++++++ include/trace/events/devlink.h | 37 +++++++++++++++++++++++++++++++++++++ 2 files changed, 51 insertions(+) (limited to 'include') diff --git a/include/net/devlink.h b/include/net/devlink.h index 7339bf9ba6b4..1014294ba6a0 100644 --- a/include/net/devlink.h +++ b/include/net/devlink.h @@ -624,6 +624,20 @@ struct devlink_health_reporter_ops { struct netlink_ext_ack *extack); }; +/** + * struct devlink_trap_metadata - Packet trap metadata. + * @trap_name: Trap name. + * @trap_group_name: Trap group name. + * @input_dev: Input netdevice. + * @fa_cookie: Flow action user cookie. + */ +struct devlink_trap_metadata { + const char *trap_name; + const char *trap_group_name; + struct net_device *input_dev; + const struct flow_action_cookie *fa_cookie; +}; + /** * struct devlink_trap_policer - Immutable packet trap policer attributes. * @id: Policer identifier. 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 */ -- cgit v1.2.3