diff mbox series

[net-next,11/13] mlxsw: reg: Configure RIF to forward IPv4 multicast packets by default

Message ID 20170919080020.5870-12-jiri@resnulli.us
State Accepted, archived
Delegated to: David Miller
Headers show
Series mlxsw: Prepare for multicast router offload | expand

Commit Message

Jiri Pirko Sept. 19, 2017, 8 a.m. UTC 
From: Yotam Gigi <yotamg@mellanox.com>

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: Yotam Gigi <yotamg@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlxsw/reg.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h
index 31d120a..c203e0d 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h
@@ -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);