[patch net 5/9] mlxsw: spectrum: Add missing packet traps

[Jiri Pirko]

From: Elad Raz <el...@mellanox.com>

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: 7b27ce7bb9cd ("mlxsw: spectrum: Add traps needed for router 
implementation")
Signed-off-by: Elad Raz <el...@mellanox.com>
Signed-off-by: Ido Schimmel <ido...@mellanox.com>
Signed-off-by: Jiri Pirko <j...@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 15 +++++++++++++++
 drivers/net/ethernet/mellanox/mlxsw/trap.h     |  3 +++
 2 files changed, 18 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c 
b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 12681db..6b69c8a 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -2651,6 +2651,21 @@ static const struct mlxsw_rx_listener 
mlxsw_sp_rx_listener[] = {
        {
                .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,
                .trap_id = MLXSW_TRAP_ID_IP2ME,
        },
        {
diff --git a/drivers/net/ethernet/mellanox/mlxsw/trap.h 
b/drivers/net/ethernet/mellanox/mlxsw/trap.h
index 470d769..9508e0a 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/trap.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/trap.h
@@ -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,
-- 
2.5.5