net: lan966x: Update the PGID used by IPV6 data frames

When enabling the multicast snooping, the forwarding of the IPV6 frames
has it's own forwarding mask.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/microchip/lan966x/lan966x_main.c

@@ -767,7 +767,7 @@ static void lan966x_init(struct lan966x *lan966x)
 	/* Setup flooding PGIDs */
 	lan_wr(ANA_FLOODING_IPMC_FLD_MC4_DATA_SET(PGID_MCIPV4) |
 	       ANA_FLOODING_IPMC_FLD_MC4_CTRL_SET(PGID_MC) |
-	       ANA_FLOODING_IPMC_FLD_MC6_DATA_SET(PGID_MC) |
+	       ANA_FLOODING_IPMC_FLD_MC6_DATA_SET(PGID_MCIPV6) |
 	       ANA_FLOODING_IPMC_FLD_MC6_CTRL_SET(PGID_MC),
 	       lan966x, ANA_FLOODING_IPMC);
 
@@ -829,6 +829,10 @@ static void lan966x_init(struct lan966x *lan966x)
 		ANA_PGID_PGID,
 		lan966x, ANA_PGID(PGID_MCIPV4));
 
+	lan_rmw(GENMASK(lan966x->num_phys_ports - 1, 0),
+		ANA_PGID_PGID,
+		lan966x, ANA_PGID(PGID_MCIPV6));
+
 	/* Unicast to all other ports */
 	lan_rmw(GENMASK(lan966x->num_phys_ports - 1, 0),
 		ANA_PGID_PGID,