diff options
| author | Amit Cohen <amitc@mellanox.com> | 2020-01-19 16:00:49 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-01-19 18:23:52 +0300 |
| commit | 196442ec5f13751ed0c66d5c4bc9b58288dea430 (patch) | |
| tree | c203140973a2ae98c71ba27c8f93416d7059ffe5 | |
| parent | 95f0ead8f04bec18e474594ef585f3734bd85b4c (diff) | |
| download | linux-196442ec5f13751ed0c66d5c4bc9b58288dea430.tar.xz | |
mlxsw: Add NON_ROUTABLE trap
Add a trap for packets that the device decided to drop because they are
not supposed to be routed. For example, IGMP queries can be flooded by
the device in layer 2 and reach the router. Such packets should not be
routed and instead dropped.
Signed-off-by: Amit Cohen <amitc@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/trap.h | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c index 42013fe11131..8706821f5851 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c @@ -80,6 +80,7 @@ static struct devlink_trap mlxsw_sp_traps_arr[] = { MLXSW_SP_TRAP_EXCEPTION(IPV6_LPM_UNICAST_MISS, L3_DROPS), MLXSW_SP_TRAP_DRIVER_DROP(IRIF_DISABLED, L3_DROPS), MLXSW_SP_TRAP_DRIVER_DROP(ERIF_DISABLED, L3_DROPS), + MLXSW_SP_TRAP_DROP(NON_ROUTABLE, L3_DROPS), }; static struct mlxsw_listener mlxsw_sp_listeners_arr[] = { @@ -114,6 +115,7 @@ static struct mlxsw_listener mlxsw_sp_listeners_arr[] = { TRAP_EXCEPTION_TO_CPU), MLXSW_SP_RXL_DISCARD(ROUTER_IRIF_EN, L3_DISCARDS), MLXSW_SP_RXL_DISCARD(ROUTER_ERIF_EN, L3_DISCARDS), + MLXSW_SP_RXL_DISCARD(NON_ROUTABLE, L3_DISCARDS), }; /* Mapping between hardware trap and devlink trap. Multiple hardware traps can @@ -149,6 +151,7 @@ static u16 mlxsw_sp_listener_devlink_map[] = { DEVLINK_TRAP_GENERIC_ID_IPV6_LPM_UNICAST_MISS, DEVLINK_MLXSW_TRAP_ID_IRIF_DISABLED, DEVLINK_MLXSW_TRAP_ID_ERIF_DISABLED, + DEVLINK_TRAP_GENERIC_ID_NON_ROUTABLE, }; static int mlxsw_sp_rx_listener(struct mlxsw_sp *mlxsw_sp, struct sk_buff *skb, diff --git a/drivers/net/ethernet/mellanox/mlxsw/trap.h b/drivers/net/ethernet/mellanox/mlxsw/trap.h index 8573cc3a0010..7d07ec8d440b 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/trap.h +++ b/drivers/net/ethernet/mellanox/mlxsw/trap.h @@ -67,6 +67,7 @@ enum { MLXSW_TRAP_ID_NVE_ENCAP_ARP = 0xBD, MLXSW_TRAP_ID_ROUTER_ALERT_IPV4 = 0xD6, MLXSW_TRAP_ID_ROUTER_ALERT_IPV6 = 0xD7, + MLXSW_TRAP_ID_DISCARD_NON_ROUTABLE = 0x11A, MLXSW_TRAP_ID_DISCARD_ROUTER2 = 0x130, MLXSW_TRAP_ID_DISCARD_ROUTER3 = 0x131, MLXSW_TRAP_ID_DISCARD_ING_PACKET_SMAC_MC = 0x140, |