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Commit 11566d34 authored by Ido Schimmel's avatar Ido Schimmel Committed by David S. Miller
Browse files

mlxsw: spectrum: Add VRRP traps 



Virtual Router Redundancy Protocol packets are used to communicate the
state of the Master router associated with the virtual router ID (VRID).

These are link-local multicast packets sent with IP protocol 112 that
are trapped in the router block in the ASIC.

Add a trap for these packets and mark the trapped packets to prevent
them from potentially being re-flooded by the bridge driver.

Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Reviewed-by: default avatarPetr Machata <petrm@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2db99378

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

+2 −0
Original line number Diff line number Diff line
@@ -3386,6 +3386,8 @@ static const struct mlxsw_listener mlxsw_sp_listener[] = { 
	MLXSW_SP_RXL_MARK(ROUTER_ALERT_IPV4, TRAP_TO_CPU, ROUTER_EXP, false),

	MLXSW_SP_RXL_MARK(ROUTER_ALERT_IPV6, TRAP_TO_CPU, ROUTER_EXP, false),

	MLXSW_SP_RXL_MARK(IPIP_DECAP_ERROR, TRAP_TO_CPU, ROUTER_EXP, false),

	MLXSW_SP_RXL_MARK(IPV4_VRRP, TRAP_TO_CPU, ROUTER_EXP, false),

	MLXSW_SP_RXL_MARK(IPV6_VRRP, TRAP_TO_CPU, 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

+2 −0
Original line number Diff line number Diff line
@@ -63,6 +63,7 @@ enum { 
	MLXSW_TRAP_ID_LBERROR = 0x54,

	MLXSW_TRAP_ID_IPV4_OSPF = 0x55,

	MLXSW_TRAP_ID_IPV4_PIM = 0x58,

	MLXSW_TRAP_ID_IPV4_VRRP = 0x59,

	MLXSW_TRAP_ID_RPF = 0x5C,

	MLXSW_TRAP_ID_IP2ME = 0x5F,

	MLXSW_TRAP_ID_IPV6_UNSPECIFIED_ADDRESS = 0x60,
@@ -78,6 +79,7 @@ enum { 
	MLXSW_TRAP_ID_IPV6_ALL_ROUTERS_LINK = 0x6F,

	MLXSW_TRAP_ID_RTR_INGRESS0 = 0x70,

	MLXSW_TRAP_ID_IPV6_PIM = 0x79,

	MLXSW_TRAP_ID_IPV6_VRRP = 0x7A,

	MLXSW_TRAP_ID_IPV4_BGP = 0x88,

	MLXSW_TRAP_ID_IPV6_BGP = 0x89,

	MLXSW_TRAP_ID_L3_IPV6_ROUTER_SOLICITATION = 0x8A,