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: 7b27ce7bb9cd ("mlxsw: spectrum: Add traps needed for router implementation")
Signed-off-by: Elad Raz <eladr@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 18 insertions, 0 deletions

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 12681db79a68..6b69c8ac7b88 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 470d7696e9fe..9508e0a49e88 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,