diff options
| author | Amit Cohen <amitc@mellanox.com> | 2020-01-05 19:20:52 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-01-07 00:38:36 +0300 |
| commit | 359ec56679efde731c09b2f1f9c93f65dd8e29df (patch) | |
| tree | 50ce2fe60ad8ef0f0b0629a519541159fd0613ae /drivers | |
| parent | 383dbf70d99e31c4dacf0eca8411581b6ec0635d (diff) | |
| download | linux-359ec56679efde731c09b2f1f9c93f65dd8e29df.tar.xz | |
mlxsw: spectrum: Disable MC_DMAC check in hardware pipeline
The check drops packets if they need to be routed and their multicast
MAC mismatched to their multicast destination IP.
For IPV4:
DMAC is mismatched if it is different from {01-00-5E-0 (25 bits),
DIP[22:0]}
For IPV6:
DMAC is mismatched if it is different from {33-33-0 (16 bits),
DIP[31:0]}
Disable the check since the kernel forwards such packets and does not
drop them.
Signed-off-by: Amit Cohen <amitc@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/trap.h | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c index c595060aa0ad..114122b52166 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@ -4547,6 +4547,8 @@ static const struct mlxsw_listener mlxsw_sp_listener[] = { MLXSW_SP_RXL_MARK(IPV6_VRRP, TRAP_TO_CPU, VRRP, false), MLXSW_SP_RXL_NO_MARK(DISCARD_ING_ROUTER_SIP_CLASS_E, FORWARD, ROUTER_EXP, false), + MLXSW_SP_RXL_NO_MARK(DISCARD_ING_ROUTER_MC_DMAC, FORWARD, + ROUTER_EXP, false), /* PKT Sample trap */ MLXSW_RXL(mlxsw_sp_rx_listener_sample_func, PKT_SAMPLE, MIRROR_TO_CPU, false, SP_IP2ME, DISCARD), diff --git a/drivers/net/ethernet/mellanox/mlxsw/trap.h b/drivers/net/ethernet/mellanox/mlxsw/trap.h index e63cb82050c6..7ccec9e28cdd 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/trap.h +++ b/drivers/net/ethernet/mellanox/mlxsw/trap.h @@ -83,6 +83,7 @@ enum { MLXSW_TRAP_ID_DISCARD_ING_ROUTER_SIP_CLASS_E = 0x164, MLXSW_TRAP_ID_DISCARD_ING_ROUTER_SIP_LB = 0x165, MLXSW_TRAP_ID_DISCARD_ING_ROUTER_CORRUPTED_IP_HDR = 0x167, + MLXSW_TRAP_ID_DISCARD_ING_ROUTER_MC_DMAC = 0x168, MLXSW_TRAP_ID_DISCARD_ING_ROUTER_IPV4_SIP_BC = 0x16A, MLXSW_TRAP_ID_DISCARD_ING_ROUTER_IPV4_DIP_LOCAL_NET = 0x16B, MLXSW_TRAP_ID_DISCARD_ROUTER_LPM4 = 0x17B, |