diff mbox series

[net-next,09/10] mlxsw: spectrum_trap: Add blackhole_nexthop trap

Message ID 20201123071230.676469-10-idosch@idosch.org (mailing list archive)
State Accepted
Delegated to: Netdev Maintainers
Headers show
Series mlxsw: Add support for blackhole nexthops | expand

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netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
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netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 12 lines checked
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netdev/stable success Stable not CCed

Commit Message

Ido Schimmel Nov. 23, 2020, 7:12 a.m. UTC 
From: Ido Schimmel <idosch@nvidia.com>

Register with devlink the blackhole_nexthop trap so that mlxsw will be
able to report packets dropped due to a blackhole nexthop.

The internal trap identifier is "DISCARD_ROUTER3", which traps packets
dropped in the adjacency table.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
index 8fd7d858f3c8..4ef12e3e021a 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
@@ -1007,6 +1007,12 @@  static const struct mlxsw_sp_trap_item mlxsw_sp_trap_items_arr[] = {
 					     false),
 		},
 	},
+	{
+		.trap = MLXSW_SP_TRAP_DROP(BLACKHOLE_NEXTHOP, L3_DROPS),
+		.listeners_arr = {
+			MLXSW_SP_RXL_DISCARD(ROUTER3, L3_DISCARDS),
+		},
+	},
 };
 
 static struct mlxsw_sp_trap_policer_item *