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Commit 4af5964e authored by Yotam Gigi's avatar Yotam Gigi Committed by David S. Miller
Browse files

mlxsw: reg: Configure RIF to forward IPv4 multicast packets by default 



Turn on two bits on the Spectrum RIF configuration:
 - IPv4 multicast: when a multicast packet arrives on a RIF, send it to go
   through multicast routes lookup.
 - IPv4 multicast forwarding enable: when multicast packet arrives on a
   RIF, allow it to be forwarded by multicast routes. If this bit is not
   set, multicast packets will go through multicast routing lookup but will
   be dropped at the egress of the ports.

Signed-off-by: default avatarYotam Gigi <yotamg@mellanox.com>
Reviewed-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4fc92846

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

+16 −0
Original line number Diff line number Diff line
@@ -3991,6 +3991,12 @@ MLXSW_ITEM32(reg, ritr, ipv4, 0x00, 29, 1); 
 */

MLXSW_ITEM32(reg, ritr, ipv6, 0x00, 28, 1);



/* reg_ritr_ipv4_mc

 * IPv4 multicast routing enable.

 * Access: RW

 */

MLXSW_ITEM32(reg, ritr, ipv4_mc, 0x00, 27, 1);



enum mlxsw_reg_ritr_if_type {

	/* VLAN interface. */

	MLXSW_REG_RITR_VLAN_IF,
@@ -4048,6 +4054,14 @@ MLXSW_ITEM32(reg, ritr, ipv4_fe, 0x04, 29, 1); 
 */

MLXSW_ITEM32(reg, ritr, ipv6_fe, 0x04, 28, 1);



/* reg_ritr_ipv4_mc_fe

 * IPv4 Multicast Forwarding Enable.

 * When disabled, forwarding is blocked but local traffic (traps and IP to me)

 * will be enabled.

 * Access: RW

 */

MLXSW_ITEM32(reg, ritr, ipv4_mc_fe, 0x04, 27, 1);



/* reg_ritr_lb_en

 * Loop-back filter enable for unicast packets.

 * If the flag is set then loop-back filter for unicast packets is
@@ -4270,11 +4284,13 @@ static inline void mlxsw_reg_ritr_pack(char *payload, bool enable, 
	mlxsw_reg_ritr_enable_set(payload, enable);

	mlxsw_reg_ritr_ipv4_set(payload, 1);

	mlxsw_reg_ritr_ipv6_set(payload, 1);

	mlxsw_reg_ritr_ipv4_mc_set(payload, 1);

	mlxsw_reg_ritr_type_set(payload, type);

	mlxsw_reg_ritr_op_set(payload, op);

	mlxsw_reg_ritr_rif_set(payload, rif);

	mlxsw_reg_ritr_ipv4_fe_set(payload, 1);

	mlxsw_reg_ritr_ipv6_fe_set(payload, 1);

	mlxsw_reg_ritr_ipv4_mc_fe_set(payload, 1);

	mlxsw_reg_ritr_lb_en_set(payload, 1);

	mlxsw_reg_ritr_virtual_router_set(payload, vr_id);

	mlxsw_reg_ritr_mtu_set(payload, mtu);