1 files changed, 70 insertions, 1 deletions

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 7976fb699086..95f07fcd4f85 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -1982,6 +1982,19 @@ static int mv88e6xxx_broadcast_setup(struct mv88e6xxx_chip *chip, u16 vid)
 	int err;
 
 	for (port = 0; port < mv88e6xxx_num_ports(chip); port++) {
+		struct dsa_port *dp = dsa_to_port(chip->ds, port);
+		struct net_device *brport;
+
+		if (dsa_is_unused_port(chip->ds, port))
+			continue;
+
+		brport = dsa_port_to_bridge_port(dp);
+		if (brport && !br_port_flag_is_set(brport, BR_BCAST_FLOOD))
+			/* Skip bridged user ports where broadcast
+			 * flooding is disabled.
+			 */
+			continue;
+
 		err = mv88e6xxx_port_add_broadcast(chip, port, vid);
 		if (err)
 			return err;
@@ -1990,6 +2003,53 @@ static int mv88e6xxx_broadcast_setup(struct mv88e6xxx_chip *chip, u16 vid)
 	return 0;
 }
 
+struct mv88e6xxx_port_broadcast_sync_ctx {
+	int port;
+	bool flood;
+};
+
+static int
+mv88e6xxx_port_broadcast_sync_vlan(struct mv88e6xxx_chip *chip,
+				   const struct mv88e6xxx_vtu_entry *vlan,
+				   void *_ctx)
+{
+	struct mv88e6xxx_port_broadcast_sync_ctx *ctx = _ctx;
+	u8 broadcast[ETH_ALEN];
+	u8 state;
+
+	if (ctx->flood)
+		state = MV88E6XXX_G1_ATU_DATA_STATE_MC_STATIC;
+	else
+		state = MV88E6XXX_G1_ATU_DATA_STATE_MC_UNUSED;
+
+	eth_broadcast_addr(broadcast);
+
+	return mv88e6xxx_port_db_load_purge(chip, ctx->port, broadcast,
+					    vlan->vid, state);
+}
+
+static int mv88e6xxx_port_broadcast_sync(struct mv88e6xxx_chip *chip, int port,
+					 bool flood)
+{
+	struct mv88e6xxx_port_broadcast_sync_ctx ctx = {
+		.port = port,
+		.flood = flood,
+	};
+	struct mv88e6xxx_vtu_entry vid0 = {
+		.vid = 0,
+	};
+	int err;
+
+	/* Update the port's private database... */
+	err = mv88e6xxx_port_broadcast_sync_vlan(chip, &vid0, &ctx);
+	if (err)
+		return err;
+
+	/* ...and the database for all VLANs. */
+	return mv88e6xxx_vtu_walk(chip, mv88e6xxx_port_broadcast_sync_vlan,
+				  &ctx);
+}
+
 static int mv88e6xxx_port_vlan_join(struct mv88e6xxx_chip *chip, int port,
 				    u16 vid, u8 member, bool warn)
 {
@@ -5609,7 +5669,8 @@ static int mv88e6xxx_port_pre_bridge_flags(struct dsa_switch *ds, int port,
 	struct mv88e6xxx_chip *chip = ds->priv;
 	const struct mv88e6xxx_ops *ops;
 
-	if (flags.mask & ~(BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD))
+	if (flags.mask & ~(BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD |
+			   BR_BCAST_FLOOD))
 		return -EINVAL;
 
 	ops = chip->info->ops;
@@ -5663,6 +5724,14 @@ static int mv88e6xxx_port_bridge_flags(struct dsa_switch *ds, int port,
 			goto out;
 	}
 
+	if (flags.mask & BR_BCAST_FLOOD) {
+		bool broadcast = !!(flags.val & BR_BCAST_FLOOD);
+
+		err = mv88e6xxx_port_broadcast_sync(chip, port, broadcast);
+		if (err)
+			goto out;
+	}
+
 out:
 	mv88e6xxx_reg_unlock(chip);