From: Yuval Mintz <yuvalm@mellanox.com>
Date: Mon, 26 Mar 2018 15:01:37 +0300
Subject: mlxsw: reg: Configure RIF to forward IPv6 multicast packets
Patch-mainline: v4.17-rc1
Git-commit: 9a3d183ad6079997d6f11c0294c2e0f12cface94
References: bsc#1112374

Similarly to what was done in commit 4af5964e5888 ("mlxsw: reg:
Configure RIF to forward IPv4 multicast packets by default") we now set
two additional bits to allow IPv6 multicast forwarding.

Signed-off-by: Yuval Mintz <yuvalm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/mellanox/mlxsw/reg.h |   16 ++++++++++++++++
 1 file changed, 16 insertions(+)

--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h
@@ -4225,6 +4225,12 @@ MLXSW_ITEM32(reg, ritr, ipv6, 0x00, 28,
  */
 MLXSW_ITEM32(reg, ritr, ipv4_mc, 0x00, 27, 1);
 
+/* reg_ritr_ipv6_mc
+ * IPv6 multicast routing enable.
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, ritr, ipv6_mc, 0x00, 26, 1);
+
 enum mlxsw_reg_ritr_if_type {
 	/* VLAN interface. */
 	MLXSW_REG_RITR_VLAN_IF,
@@ -4290,6 +4296,14 @@ MLXSW_ITEM32(reg, ritr, ipv6_fe, 0x04, 2
  */
 MLXSW_ITEM32(reg, ritr, ipv4_mc_fe, 0x04, 27, 1);
 
+/* reg_ritr_ipv6_mc_fe
+ * IPv6 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, ipv6_mc_fe, 0x04, 26, 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
@@ -4513,12 +4527,14 @@ static inline void mlxsw_reg_ritr_pack(c
 	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_ipv6_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_ipv6_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);