Commit ca360db4 authored by Amit Cohen's avatar Amit Cohen Committed by David S. Miller
Browse files

mlxsw: spectrum: Disable DIP_LINK_LOCAL check in hardware pipeline 



The check drops packets if they need to be routed and their destination
IP is link-local, i.e., belongs to 169.254.0.0/16 address range.

Disable the check since the kernel forwards such packets and does not
drop them.

Signed-off-by: default avatarAmit Cohen <amitc@mellanox.com>
Acked-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6e734f86

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

+2 −0
Original line number Diff line number Diff line
@@ -4551,6 +4551,8 @@ static const struct mlxsw_listener mlxsw_sp_listener[] = { 
			     ROUTER_EXP, false),

	MLXSW_SP_RXL_NO_MARK(DISCARD_ING_ROUTER_SIP_DIP, FORWARD,

			     ROUTER_EXP, false),

	MLXSW_SP_RXL_NO_MARK(DISCARD_ING_ROUTER_DIP_LINK_LOCAL, FORWARD,

			     ROUTER_EXP, false),

	/* PKT Sample trap */

	MLXSW_RXL(mlxsw_sp_rx_listener_sample_func, PKT_SAMPLE, MIRROR_TO_CPU,

		  false, SP_IP2ME, DISCARD),

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

+1 −0
Original line number Diff line number Diff line
@@ -87,6 +87,7 @@ enum { 
	MLXSW_TRAP_ID_DISCARD_ING_ROUTER_SIP_DIP = 0x169,

	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_ING_ROUTER_DIP_LINK_LOCAL = 0x16C,

	MLXSW_TRAP_ID_DISCARD_ROUTER_LPM4 = 0x17B,

	MLXSW_TRAP_ID_DISCARD_ROUTER_LPM6 = 0x17C,

	MLXSW_TRAP_ID_DISCARD_IPV6_MC_DIP_RESERVED_SCOPE = 0x1B0,

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