From: Amit Cohen <am...@mellanox.com>
Add the packet trap that can report packets that were ECN marked due to RED
AQM.
Signed-off-by: Amit Cohen <am...@mellanox.com>
Signed-off-by: Petr Machata <pe...@mellanox.com>
Reviewed-by: Jiri Pirko <j...@mellanox.com>
Signed-off-by: Ido Schimmel <ido...@mellanox.com>
---
Documentation/networking/devlink/devlink-trap.rst | 4 ++++
include/net/devlink.h | 3 +++
net/core/devlink.c | 1 +
3 files changed, 8 insertions(+)
diff --git a/Documentation/networking/devlink/devlink-trap.rst
b/Documentation/networking/devlink/devlink-trap.rst
index 2014307fbe63..7a798352b45d 100644
--- a/Documentation/networking/devlink/devlink-trap.rst
+++ b/Documentation/networking/devlink/devlink-trap.rst
@@ -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
============================
diff --git a/include/net/devlink.h b/include/net/devlink.h
index 0606967cb501..fd3ae0760492 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -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"
diff --git a/net/core/devlink.c b/net/core/devlink.c
index 5fdebb7289e9..bde4c29a30bc 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -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)
\
--
2.26.2
