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Commit c20b8018 authored by Elad Raz's avatar Elad Raz Committed by David S. Miller
Browse files

mlxsw: spectrum: Add missing packet traps 



Add the following traps:

1) MTU Error: Trap packets whose size is bigger than the egress RIF's
MTU. If DF bit isn't set, traffic will continue to be routed in slow
path.

2) TTL Error: Trap packets whose TTL expired. This allows traceroute to
work properly.

3) OSPF packets.

Fixes: 7b27ce7b ("mlxsw: spectrum: Add traps needed for router implementation")
Signed-off-by: default avatarElad Raz <eladr@mellanox.com>
Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2f25844c

drivers/net/ethernet/mellanox/mlxsw/spectrum.c

+15 −0
Original line number Diff line number Diff line
@@ -2648,6 +2648,21 @@ static const struct mlxsw_rx_listener mlxsw_sp_rx_listener[] = { 
		.local_port = MLXSW_PORT_DONT_CARE,

		.trap_id = MLXSW_TRAP_ID_ARPUC,

	},

	{

		.func = mlxsw_sp_rx_listener_func,

		.local_port = MLXSW_PORT_DONT_CARE,

		.trap_id = MLXSW_TRAP_ID_MTUERROR,

	},

	{

		.func = mlxsw_sp_rx_listener_func,

		.local_port = MLXSW_PORT_DONT_CARE,

		.trap_id = MLXSW_TRAP_ID_TTLERROR,

	},

	{

		.func = mlxsw_sp_rx_listener_func,

		.local_port = MLXSW_PORT_DONT_CARE,

		.trap_id = MLXSW_TRAP_ID_OSPF,

	},

	{

		.func = mlxsw_sp_rx_listener_func,

		.local_port = MLXSW_PORT_DONT_CARE,

drivers/net/ethernet/mellanox/mlxsw/trap.h

+3 −0
Original line number Diff line number Diff line
@@ -56,6 +56,9 @@ enum { 
	MLXSW_TRAP_ID_IGMP_V3_REPORT = 0x34,

	MLXSW_TRAP_ID_ARPBC = 0x50,

	MLXSW_TRAP_ID_ARPUC = 0x51,

	MLXSW_TRAP_ID_MTUERROR = 0x52,

	MLXSW_TRAP_ID_TTLERROR = 0x53,

	MLXSW_TRAP_ID_OSPF = 0x55,

	MLXSW_TRAP_ID_IP2ME = 0x5F,

	MLXSW_TRAP_ID_RTR_INGRESS0 = 0x70,

	MLXSW_TRAP_ID_HOST_MISS_IPV4 = 0x90,