diff mbox series

[net-next,2/5] mlxsw: spectrum_trap: Add ecn_mark trap

Message ID 20210117080223.2107288-3-idosch@idosch.org (mailing list archive)
State Changes Requested
Delegated to: Netdev Maintainers
Headers show
Series mlxsw: Add support for RED qevent "mark" | 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, 21 lines checked
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netdev/stable success Stable not CCed

Commit Message

Ido Schimmel Jan. 17, 2021, 8:02 a.m. UTC 
From: Petr Machata <petrm@nvidia.com>

Register with devlink a new buffer drop trap, ecn_mark. Since Spectrum-1
does not support the ecn_mark trap, do it only for Spectrum-2 and above.

Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c | 9 +++++++++
 1 file changed, 9 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 4ef12e3e021a..45cf6c027cac 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
@@ -51,6 +51,8 @@  enum {
 enum {
 	/* Packet was early dropped. */
 	MLXSW_SP_MIRROR_REASON_INGRESS_WRED = 9,
+	/* Packet was ECN marked. */
+	MLXSW_SP_MIRROR_REASON_EGRESS_ECN = 13,
 };
 
 static int mlxsw_sp_rx_listener(struct mlxsw_sp *mlxsw_sp, struct sk_buff *skb,
@@ -1760,6 +1762,13 @@  mlxsw_sp2_trap_items_arr[] = {
 		},
 		.is_source = true,
 	},
+	{
+		.trap = MLXSW_SP_TRAP_BUFFER_DROP(ECN_MARK),
+		.listeners_arr = {
+			MLXSW_SP_RXL_BUFFER_DISCARD(EGRESS_ECN),
+		},
+		.is_source = true,
+	},
 };
 
 static int