Commit 08e335f6 authored Aug 03, 2020 by Amit Cohen Committed by David S. Miller Aug 03, 2020

devlink: Add early_drop trap



Add the packet trap that can report packets that were ECN marked due to RED
AQM.

Signed-off-by: Amit Cohen <amitc@mellanox.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 80fbbb16

Documentation/networking/devlink/devlink-trap.rst

+4 −0

Original line number	Diff line number	Diff line
		@@ -405,6 +405,10 @@ be added to the following table:
		- ``control``
		- Traps packets logged during processing of flow action trap (e.g., via
		tc's trap action)
		* - ``early_drop``
		- ``drop``
		- Traps packets dropped due to the RED (Random Early Detection) algorithm
		(i.e., early drops)

		Driver-specific Packet Traps
		============================

include/net/devlink.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -703,6 +703,7 @@ enum devlink_trap_generic_id {
		DEVLINK_TRAP_GENERIC_ID_PTP_GENERAL,
		DEVLINK_TRAP_GENERIC_ID_FLOW_ACTION_SAMPLE,
		DEVLINK_TRAP_GENERIC_ID_FLOW_ACTION_TRAP,
		DEVLINK_TRAP_GENERIC_ID_EARLY_DROP,

		/* Add new generic trap IDs above */
		__DEVLINK_TRAP_GENERIC_ID_MAX,
		@@ -891,6 +892,8 @@ enum devlink_trap_group_generic_id {
		"flow_action_sample"
		#define DEVLINK_TRAP_GENERIC_NAME_FLOW_ACTION_TRAP \
		"flow_action_trap"
		#define DEVLINK_TRAP_GENERIC_NAME_EARLY_DROP \
		"early_drop"

		#define DEVLINK_TRAP_GROUP_GENERIC_NAME_L2_DROPS \
		"l2_drops"

net/core/devlink.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -8801,6 +8801,7 @@ static const struct devlink_trap devlink_trap_generic[] = {
		DEVLINK_TRAP(PTP_GENERAL, CONTROL),
		DEVLINK_TRAP(FLOW_ACTION_SAMPLE, CONTROL),
		DEVLINK_TRAP(FLOW_ACTION_TRAP, CONTROL),
		DEVLINK_TRAP(EARLY_DROP, DROP),
		};

		#define DEVLINK_TRAP_GROUP(_id) \