26 files changed, 440 insertions, 369 deletions

diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
index af4761968733..3867f3d4545f 100644
--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -1860,7 +1860,8 @@ int b53_mdb_del(struct dsa_switch *ds, int port,
 }
 EXPORT_SYMBOL(b53_mdb_del);
 
-int b53_br_join(struct dsa_switch *ds, int port, struct net_device *br)
+int b53_br_join(struct dsa_switch *ds, int port, struct dsa_bridge bridge,
+		bool *tx_fwd_offload)
 {
 	struct b53_device *dev = ds->priv;
 	s8 cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
@@ -1887,7 +1888,7 @@ int b53_br_join(struct dsa_switch *ds, int port, struct net_device *br)
 	b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), &pvlan);
 
 	b53_for_each_port(dev, i) {
-		if (dsa_to_port(ds, i)->bridge_dev != br)
+		if (!dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
 			continue;
 
 		/* Add this local port to the remote port VLAN control
@@ -1911,7 +1912,7 @@ int b53_br_join(struct dsa_switch *ds, int port, struct net_device *br)
 }
 EXPORT_SYMBOL(b53_br_join);
 
-void b53_br_leave(struct dsa_switch *ds, int port, struct net_device *br)
+void b53_br_leave(struct dsa_switch *ds, int port, struct dsa_bridge bridge)
 {
 	struct b53_device *dev = ds->priv;
 	struct b53_vlan *vl = &dev->vlans[0];
@@ -1923,7 +1924,7 @@ void b53_br_leave(struct dsa_switch *ds, int port, struct net_device *br)
 
 	b53_for_each_port(dev, i) {
 		/* Don't touch the remaining ports */
-		if (dsa_to_port(ds, i)->bridge_dev != br)
+		if (!dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
 			continue;
 
 		b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), &reg);
diff --git a/drivers/net/dsa/b53/b53_priv.h b/drivers/net/dsa/b53/b53_priv.h
index 579da74ada64..b41dc8ac2ca8 100644
--- a/drivers/net/dsa/b53/b53_priv.h
+++ b/drivers/net/dsa/b53/b53_priv.h
@@ -324,8 +324,9 @@ void b53_get_strings(struct dsa_switch *ds, int port, u32 stringset,
 void b53_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *data);
 int b53_get_sset_count(struct dsa_switch *ds, int port, int sset);
 void b53_get_ethtool_phy_stats(struct dsa_switch *ds, int port, uint64_t *data);
-int b53_br_join(struct dsa_switch *ds, int port, struct net_device *bridge);
-void b53_br_leave(struct dsa_switch *ds, int port, struct net_device *bridge);
+int b53_br_join(struct dsa_switch *ds, int port, struct dsa_bridge bridge,
+		bool *tx_fwd_offload);
+void b53_br_leave(struct dsa_switch *ds, int port, struct dsa_bridge bridge);
 void b53_br_set_stp_state(struct dsa_switch *ds, int port, u8 state);
 void b53_br_fast_age(struct dsa_switch *ds, int port);
 int b53_br_flags_pre(struct dsa_switch *ds, int port,
diff --git a/drivers/net/dsa/dsa_loop.c b/drivers/net/dsa/dsa_loop.c
index e638e3eea911..33daaf10c488 100644
--- a/drivers/net/dsa/dsa_loop.c
+++ b/drivers/net/dsa/dsa_loop.c
@@ -167,19 +167,20 @@ static int dsa_loop_phy_write(struct dsa_switch *ds, int port,
 }
 
 static int dsa_loop_port_bridge_join(struct dsa_switch *ds, int port,
-				     struct net_device *bridge)
+				     struct dsa_bridge bridge,
+				     bool *tx_fwd_offload)
 {
 	dev_dbg(ds->dev, "%s: port: %d, bridge: %s\n",
-		__func__, port, bridge->name);
+		__func__, port, bridge.dev->name);
 
 	return 0;
 }
 
 static void dsa_loop_port_bridge_leave(struct dsa_switch *ds, int port,
-				       struct net_device *bridge)
+				       struct dsa_bridge bridge)
 {
 	dev_dbg(ds->dev, "%s: port: %d, bridge: %s\n",
-		__func__, port, bridge->name);
+		__func__, port, bridge.dev->name);
 }
 
 static void dsa_loop_port_stp_state_set(struct dsa_switch *ds, int port,
diff --git a/drivers/net/dsa/hirschmann/hellcreek.c b/drivers/net/dsa/hirschmann/hellcreek.c
index 86839b43011b..9eecb7529573 100644
--- a/drivers/net/dsa/hirschmann/hellcreek.c
+++ b/drivers/net/dsa/hirschmann/hellcreek.c
@@ -674,7 +674,8 @@ static int hellcreek_bridge_flags(struct dsa_switch *ds, int port,
 }
 
 static int hellcreek_port_bridge_join(struct dsa_switch *ds, int port,
-				      struct net_device *br)
+				      struct dsa_bridge bridge,
+				      bool *tx_fwd_offload)
 {
 	struct hellcreek *hellcreek = ds->priv;
 
@@ -691,7 +692,7 @@ static int hellcreek_port_bridge_join(struct dsa_switch *ds, int port,
 }
 
 static void hellcreek_port_bridge_leave(struct dsa_switch *ds, int port,
-					struct net_device *br)
+					struct dsa_bridge bridge)
 {
 	struct hellcreek *hellcreek = ds->priv;
 
diff --git a/drivers/net/dsa/lan9303-core.c b/drivers/net/dsa/lan9303-core.c
index 89f920289ae2..d55784d19fa4 100644
--- a/drivers/net/dsa/lan9303-core.c
+++ b/drivers/net/dsa/lan9303-core.c
@@ -1103,12 +1103,13 @@ static void lan9303_port_disable(struct dsa_switch *ds, int port)
 }
 
 static int lan9303_port_bridge_join(struct dsa_switch *ds, int port,
-				    struct net_device *br)
+				    struct dsa_bridge bridge,
+				    bool *tx_fwd_offload)
 {
 	struct lan9303 *chip = ds->priv;
 
 	dev_dbg(chip->dev, "%s(port %d)\n", __func__, port);
-	if (dsa_to_port(ds, 1)->bridge_dev == dsa_to_port(ds, 2)->bridge_dev) {
+	if (dsa_port_bridge_same(dsa_to_port(ds, 1), dsa_to_port(ds, 2))) {
 		lan9303_bridge_ports(chip);
 		chip->is_bridged = true;  /* unleash stp_state_set() */
 	}
@@ -1117,7 +1118,7 @@ static int lan9303_port_bridge_join(struct dsa_switch *ds, int port,
 }
 
 static void lan9303_port_bridge_leave(struct dsa_switch *ds, int port,
-				      struct net_device *br)
+				      struct dsa_bridge bridge)
 {
 	struct lan9303 *chip = ds->priv;
 
diff --git a/drivers/net/dsa/lantiq_gswip.c b/drivers/net/dsa/lantiq_gswip.c
index 583af774e1bd..46ed953e787e 100644
--- a/drivers/net/dsa/lantiq_gswip.c
+++ b/drivers/net/dsa/lantiq_gswip.c
@@ -759,7 +759,7 @@ static int gswip_port_vlan_filtering(struct dsa_switch *ds, int port,
 				     bool vlan_filtering,
 				     struct netlink_ext_ack *extack)
 {
-	struct net_device *bridge = dsa_to_port(ds, port)->bridge_dev;
+	struct net_device *bridge = dsa_port_bridge_dev_get(dsa_to_port(ds, port));
 	struct gswip_priv *priv = ds->priv;
 
 	/* Do not allow changing the VLAN filtering options while in bridge */
@@ -1146,16 +1146,18 @@ static int gswip_vlan_remove(struct gswip_priv *priv,
 }
 
 static int gswip_port_bridge_join(struct dsa_switch *ds, int port,
-				  struct net_device *bridge)
+				  struct dsa_bridge bridge,
+				  bool *tx_fwd_offload)
 {
+	struct net_device *br = bridge.dev;
 	struct gswip_priv *priv = ds->priv;
 	int err;
 
 	/* When the bridge uses VLAN filtering we have to configure VLAN
 	 * specific bridges. No bridge is configured here.
 	 */
-	if (!br_vlan_enabled(bridge)) {
-		err = gswip_vlan_add_unaware(priv, bridge, port);
+	if (!br_vlan_enabled(br)) {
+		err = gswip_vlan_add_unaware(priv, br, port);
 		if (err)
 			return err;
 		priv->port_vlan_filter &= ~BIT(port);
@@ -1166,8 +1168,9 @@ static int gswip_port_bridge_join(struct dsa_switch *ds, int port,
 }
 
 static void gswip_port_bridge_leave(struct dsa_switch *ds, int port,
-				    struct net_device *bridge)
+				    struct dsa_bridge bridge)
 {
+	struct net_device *br = bridge.dev;
 	struct gswip_priv *priv = ds->priv;
 
 	gswip_add_single_port_br(priv, port, true);
@@ -1175,16 +1178,16 @@ static void gswip_port_bridge_leave(struct dsa_switch *ds, int port,
 	/* When the bridge uses VLAN filtering we have to configure VLAN
 	 * specific bridges. No bridge is configured here.
 	 */
-	if (!br_vlan_enabled(bridge))
-		gswip_vlan_remove(priv, bridge, port, 0, true, false);
+	if (!br_vlan_enabled(br))
+		gswip_vlan_remove(priv, br, port, 0, true, false);
 }
 
 static int gswip_port_vlan_prepare(struct dsa_switch *ds, int port,
 				   const struct switchdev_obj_port_vlan *vlan,
 				   struct netlink_ext_ack *extack)
 {
+	struct net_device *bridge = dsa_port_bridge_dev_get(dsa_to_port(ds, port));
 	struct gswip_priv *priv = ds->priv;
-	struct net_device *bridge = dsa_to_port(ds, port)->bridge_dev;
 	unsigned int max_ports = priv->hw_info->max_ports;
 	int pos = max_ports;
 	int i, idx = -1;
@@ -1229,8 +1232,8 @@ static int gswip_port_vlan_add(struct dsa_switch *ds, int port,
 			       const struct switchdev_obj_port_vlan *vlan,
 			       struct netlink_ext_ack *extack)
 {
+	struct net_device *bridge = dsa_port_bridge_dev_get(dsa_to_port(ds, port));
 	struct gswip_priv *priv = ds->priv;
-	struct net_device *bridge = dsa_to_port(ds, port)->bridge_dev;
 	bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
 	bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
 	int err;
@@ -1254,8 +1257,8 @@ static int gswip_port_vlan_add(struct dsa_switch *ds, int port,
 static int gswip_port_vlan_del(struct dsa_switch *ds, int port,
 			       const struct switchdev_obj_port_vlan *vlan)
 {
+	struct net_device *bridge = dsa_port_bridge_dev_get(dsa_to_port(ds, port));
 	struct gswip_priv *priv = ds->priv;
-	struct net_device *bridge = dsa_to_port(ds, port)->bridge_dev;
 	bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
 
 	/* We have to receive all packets on the CPU port and should not
@@ -1340,8 +1343,8 @@ static void gswip_port_stp_state_set(struct dsa_switch *ds, int port, u8 state)
 static int gswip_port_fdb(struct dsa_switch *ds, int port,
 			  const unsigned char *addr, u16 vid, bool add)
 {
+	struct net_device *bridge = dsa_port_bridge_dev_get(dsa_to_port(ds, port));
 	struct gswip_priv *priv = ds->priv;
-	struct net_device *bridge = dsa_to_port(ds, port)->bridge_dev;
 	struct gswip_pce_table_entry mac_bridge = {0,};
 	unsigned int cpu_port = priv->hw_info->cpu_port;
 	int fid = -1;
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 8a04302018dc..47a856533cff 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -43,7 +43,7 @@ void ksz_update_port_member(struct ksz_device *dev, int port)
 			continue;
 		if (port == i)
 			continue;
-		if (!dp->bridge_dev || dp->bridge_dev != other_dp->bridge_dev)
+		if (!dsa_port_bridge_same(dp, other_dp))
 			continue;
 
 		if (other_p->stp_state == BR_STATE_FORWARDING &&
@@ -192,7 +192,8 @@ void ksz_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *buf)
 EXPORT_SYMBOL_GPL(ksz_get_ethtool_stats);
 
 int ksz_port_bridge_join(struct dsa_switch *ds, int port,
-			 struct net_device *br)
+			 struct dsa_bridge bridge,
+			 bool *tx_fwd_offload)
 {
 	/* port_stp_state_set() will be called after to put the port in
 	 * appropriate state so there is no need to do anything.
@@ -203,7 +204,7 @@ int ksz_port_bridge_join(struct dsa_switch *ds, int port,
 EXPORT_SYMBOL_GPL(ksz_port_bridge_join);
 
 void ksz_port_bridge_leave(struct dsa_switch *ds, int port,
-			   struct net_device *br)
+			   struct dsa_bridge bridge)
 {
 	/* port_stp_state_set() will be called after to put the port in
 	 * forwarding state so there is no need to do anything.
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index 54b456bc8972..df8ae59c8525 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -155,9 +155,9 @@ void ksz_mac_link_down(struct dsa_switch *ds, int port, unsigned int mode,
 int ksz_sset_count(struct dsa_switch *ds, int port, int sset);
 void ksz_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *buf);
 int ksz_port_bridge_join(struct dsa_switch *ds, int port,
-			 struct net_device *br);
+			 struct dsa_bridge bridge, bool *tx_fwd_offload);
 void ksz_port_bridge_leave(struct dsa_switch *ds, int port,
-			   struct net_device *br);
+			   struct dsa_bridge bridge);
 void ksz_port_fast_age(struct dsa_switch *ds, int port);
 int ksz_port_fdb_dump(struct dsa_switch *ds, int port, dsa_fdb_dump_cb_t *cb,
 		      void *data);
diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index 9890672a206d..b82512e5b33b 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -1186,29 +1186,33 @@ mt7530_port_bridge_flags(struct dsa_switch *ds, int port,
 
 static int
 mt7530_port_bridge_join(struct dsa_switch *ds, int port,
-			struct net_device *bridge)
+			struct dsa_bridge bridge, bool *tx_fwd_offload)
 {
-	struct mt7530_priv *priv = ds->priv;
+	struct dsa_port *dp = dsa_to_port(ds, port), *other_dp;
 	u32 port_bitmap = BIT(MT7530_CPU_PORT);
-	int i;
+	struct mt7530_priv *priv = ds->priv;
 
 	mutex_lock(&priv->reg_mutex);
 
-	for (i = 0; i < MT7530_NUM_PORTS; i++) {
+	dsa_switch_for_each_user_port(other_dp, ds) {
+		int other_port = other_dp->index;
+
+		if (dp == other_dp)
+			continue;
+
 		/* Add this port to the port matrix of the other ports in the
 		 * same bridge. If the port is disabled, port matrix is kept
 		 * and not being setup until the port becomes enabled.
 		 */
-		if (dsa_is_user_port(ds, i) && i != port) {
-			if (dsa_to_port(ds, i)->bridge_dev != bridge)
-				continue;
-			if (priv->ports[i].enable)
-				mt7530_set(priv, MT7530_PCR_P(i),
-					   PCR_MATRIX(BIT(port)));
-			priv->ports[i].pm |= PCR_MATRIX(BIT(port));
+		if (!dsa_port_offloads_bridge(other_dp, &bridge))
+			continue;
 
-			port_bitmap |= BIT(i);
-		}
+		if (priv->ports[other_port].enable)
+			mt7530_set(priv, MT7530_PCR_P(other_port),
+				   PCR_MATRIX(BIT(port)));
+		priv->ports[other_port].pm |= PCR_MATRIX(BIT(port));
+
+		port_bitmap |= BIT(other_port);
 	}
 
 	/* Add the all other ports to this port matrix. */
@@ -1236,7 +1240,7 @@ mt7530_port_set_vlan_unaware(struct dsa_switch *ds, int port)
 	/* This is called after .port_bridge_leave when leaving a VLAN-aware
 	 * bridge. Don't set standalone ports to fallback mode.
 	 */
-	if (dsa_to_port(ds, port)->bridge_dev)
+	if (dsa_port_bridge_dev_get(dsa_to_port(ds, port)))
 		mt7530_rmw(priv, MT7530_PCR_P(port), PCR_PORT_VLAN_MASK,
 			   MT7530_PORT_FALLBACK_MODE);
 
@@ -1299,26 +1303,30 @@ mt7530_port_set_vlan_aware(struct dsa_switch *ds, int port)
 
 static void
 mt7530_port_bridge_leave(struct dsa_switch *ds, int port,
-			 struct net_device *bridge)
+			 struct dsa_bridge bridge)
 {
+	struct dsa_port *dp = dsa_to_port(ds, port), *other_dp;
 	struct mt7530_priv *priv = ds->priv;
-	int i;
 
 	mutex_lock(&priv->reg_mutex);
 
-	for (i = 0; i < MT7530_NUM_PORTS; i++) {
+	dsa_switch_for_each_user_port(other_dp, ds) {
+		int other_port = other_dp->index;
+
+		if (dp == other_dp)
+			continue;
+
 		/* Remove this port from the port matrix of the other ports
 		 * in the same bridge. If the port is disabled, port matrix
 		 * is kept and not being setup until the port becomes enabled.
 		 */
-		if (dsa_is_user_port(ds, i) && i != port) {
-			if (dsa_to_port(ds, i)->bridge_dev != bridge)
-				continue;
-			if (priv->ports[i].enable)
-				mt7530_clear(priv, MT7530_PCR_P(i),
-					     PCR_MATRIX(BIT(port)));
-			priv->ports[i].pm &= ~PCR_MATRIX(BIT(port));
-		}
+		if (!dsa_port_offloads_bridge(other_dp, &bridge))
+			continue;
+
+		if (priv->ports[other_port].enable)
+			mt7530_clear(priv, MT7530_PCR_P(other_port),
+				     PCR_MATRIX(BIT(port)));
+		priv->ports[other_port].pm &= ~PCR_MATRIX(BIT(port));
 	}
 
 	/* Set the cpu port to be the only one in the port matrix of
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index f00cbf5753b9..7fadbf987b23 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -1228,8 +1228,7 @@ static u16 mv88e6xxx_port_vlan(struct mv88e6xxx_chip *chip, int dev, int port)
 {
 	struct dsa_switch *ds = chip->ds;
 	struct dsa_switch_tree *dst = ds->dst;
-	struct net_device *br;
-	struct dsa_port *dp;
+	struct dsa_port *dp, *other_dp;
 	bool found = false;
 	u16 pvlan;
 
@@ -1238,11 +1237,9 @@ static u16 mv88e6xxx_port_vlan(struct mv88e6xxx_chip *chip, int dev, int port)
 		list_for_each_entry(dp, &dst->ports, list) {
 			if (dp->ds->index == dev && dp->index == port) {
 				/* dp might be a DSA link or a user port, so it
-				 * might or might not have a bridge_dev
-				 * pointer. Use the "found" variable for both
-				 * cases.
+				 * might or might not have a bridge.
+				 * Use the "found" variable for both cases.
 				 */
-				br = dp->bridge_dev;
 				found = true;
 				break;
 			}
@@ -1250,13 +1247,14 @@ static u16 mv88e6xxx_port_vlan(struct mv88e6xxx_chip *chip, int dev, int port)
 	/* dev is a virtual bridge */
 	} else {
 		list_for_each_entry(dp, &dst->ports, list) {
-			if (dp->bridge_num < 0)
+			unsigned int bridge_num = dsa_port_bridge_num_get(dp);
+
+			if (!bridge_num)
 				continue;
 
-			if (dp->bridge_num + 1 + dst->last_switch != dev)
+			if (bridge_num + dst->last_switch != dev)
 				continue;
 
-			br = dp->bridge_dev;
 			found = true;
 			break;
 		}
@@ -1275,12 +1273,11 @@ static u16 mv88e6xxx_port_vlan(struct mv88e6xxx_chip *chip, int dev, int port)
 	/* Frames from user ports can egress any local DSA links and CPU ports,
 	 * as well as any local member of their bridge group.
 	 */
-	list_for_each_entry(dp, &dst->ports, list)
-		if (dp->ds == ds &&
-		    (dp->type == DSA_PORT_TYPE_CPU ||
-		     dp->type == DSA_PORT_TYPE_DSA ||
-		     (br && dp->bridge_dev == br)))
-			pvlan |= BIT(dp->index);
+	dsa_switch_for_each_port(other_dp, ds)
+		if (other_dp->type == DSA_PORT_TYPE_CPU ||
+		    other_dp->type == DSA_PORT_TYPE_DSA ||
+		    dsa_port_bridge_same(dp, other_dp))
+			pvlan |= BIT(other_dp->index);
 
 	return pvlan;
 }
@@ -1647,12 +1644,13 @@ static int mv88e6xxx_atu_new(struct mv88e6xxx_chip *chip, u16 *fid)
 static int mv88e6xxx_port_check_hw_vlan(struct dsa_switch *ds, int port,
 					u16 vid)
 {
+	struct dsa_port *dp = dsa_to_port(ds, port), *other_dp;
 	struct mv88e6xxx_chip *chip = ds->priv;
 	struct mv88e6xxx_vtu_entry vlan;
-	int i, err;
+	int err;
 
 	/* DSA and CPU ports have to be members of multiple vlans */
-	if (dsa_is_dsa_port(ds, port) || dsa_is_cpu_port(ds, port))
+	if (dsa_port_is_dsa(dp) || dsa_port_is_cpu(dp))
 		return 0;
 
 	err = mv88e6xxx_vtu_get(chip, vid, &vlan);
@@ -1662,27 +1660,22 @@ static int mv88e6xxx_port_check_hw_vlan(struct dsa_switch *ds, int port,
 	if (!vlan.valid)
 		return 0;
 
-	for (i = 0; i < mv88e6xxx_num_ports(chip); ++i) {
-		if (dsa_is_dsa_port(ds, i) || dsa_is_cpu_port(ds, i))
-			continue;
+	dsa_switch_for_each_user_port(other_dp, ds) {
+		struct net_device *other_br;
 
-		if (!dsa_to_port(ds, i)->slave)
-			continue;
-
-		if (vlan.member[i] ==
+		if (vlan.member[other_dp->index] ==
 		    MV88E6XXX_G1_VTU_DATA_MEMBER_TAG_NON_MEMBER)
 			continue;
 
-		if (dsa_to_port(ds, i)->bridge_dev ==
-		    dsa_to_port(ds, port)->bridge_dev)
+		if (dsa_port_bridge_same(dp, other_dp))
 			break; /* same bridge, check next VLAN */
 
-		if (!dsa_to_port(ds, i)->bridge_dev)
+		other_br = dsa_port_bridge_dev_get(other_dp);
+		if (!other_br)
 			continue;
 
 		dev_err(ds->dev, "p%d: hw VLAN %d already used by port %d in %s\n",
-			port, vlan.vid, i,
-			netdev_name(dsa_to_port(ds, i)->bridge_dev));
+			port, vlan.vid, other_dp->index, netdev_name(other_br));
 		return -EOPNOTSUPP;
 	}
 
@@ -1692,13 +1685,14 @@ static int mv88e6xxx_port_check_hw_vlan(struct dsa_switch *ds, int port,
 static int mv88e6xxx_port_commit_pvid(struct mv88e6xxx_chip *chip, int port)
 {
 	struct dsa_port *dp = dsa_to_port(chip->ds, port);
+	struct net_device *br = dsa_port_bridge_dev_get(dp);
 	struct mv88e6xxx_port *p = &chip->ports[port];
 	u16 pvid = MV88E6XXX_VID_STANDALONE;
 	bool drop_untagged = false;
 	int err;
 
-	if (dp->bridge_dev) {
-		if (br_vlan_enabled(dp->bridge_dev)) {
+	if (br) {
+		if (br_vlan_enabled(br)) {
 			pvid = p->bridge_pvid.vid;
 			drop_untagged = !p->bridge_pvid.valid;
 		} else {
@@ -2416,7 +2410,7 @@ static int mv88e6xxx_port_fdb_dump(struct dsa_switch *ds, int port,
 }
 
 static int mv88e6xxx_bridge_map(struct mv88e6xxx_chip *chip,
-				struct net_device *br)
+				struct dsa_bridge bridge)
 {
 	struct dsa_switch *ds = chip->ds;
 	struct dsa_switch_tree *dst = ds->dst;
@@ -2424,7 +2418,7 @@ static int mv88e6xxx_bridge_map(struct mv88e6xxx_chip *chip,
 	int err;
 
 	list_for_each_entry(dp, &dst->ports, list) {
-		if (dp->bridge_dev == br) {
+		if (dsa_port_offloads_bridge(dp, &bridge)) {
 			if (dp->ds == ds) {
 				/* This is a local bridge group member,
 				 * remap its Port VLAN Map.
@@ -2447,15 +2441,29 @@ static int mv88e6xxx_bridge_map(struct mv88e6xxx_chip *chip,
 	return 0;
 }
 
+/* Treat the software bridge as a virtual single-port switch behind the
+ * CPU and map in the PVT. First dst->last_switch elements are taken by
+ * physical switches, so start from beyond that range.
+ */
+static int mv88e6xxx_map_virtual_bridge_to_pvt(struct dsa_switch *ds,
+					       unsigned int bridge_num)
+{
+	u8 dev = bridge_num + ds->dst->last_switch;
+	struct mv88e6xxx_chip *chip = ds->priv;
+
+	return mv88e6xxx_pvt_map(chip, dev, 0);
+}
+
 static int mv88e6xxx_port_bridge_join(struct dsa_switch *ds, int port,
-				      struct net_device *br)
+				      struct dsa_bridge bridge,
+				      bool *tx_fwd_offload)
 {
 	struct mv88e6xxx_chip *chip = ds->priv;
 	int err;
 
 	mv88e6xxx_reg_lock(chip);
 
-	err = mv88e6xxx_bridge_map(chip, br);
+	err = mv88e6xxx_bridge_map(chip, bridge);
 	if (err)
 		goto unlock;
 
@@ -2463,6 +2471,14 @@ static int mv88e6xxx_port_bridge_join(struct dsa_switch *ds, int port,
 	if (err)
 		goto unlock;
 
+	if (mv88e6xxx_has_pvt(chip)) {
+		err = mv88e6xxx_map_virtual_bridge_to_pvt(ds, bridge.num);
+		if (err)
+			goto unlock;
+
+		*tx_fwd_offload = true;
+	}
+
 unlock:
 	mv88e6xxx_reg_unlock(chip);
 
@@ -2470,14 +2486,18 @@ unlock:
 }
 
 static void mv88e6xxx_port_bridge_leave(struct dsa_switch *ds, int port,
-					struct net_device *br)
+					struct dsa_bridge bridge)
 {
 	struct mv88e6xxx_chip *chip = ds->priv;
 	int err;
 
 	mv88e6xxx_reg_lock(chip);
 
-	if (mv88e6xxx_bridge_map(chip, br) ||
+	if (bridge.tx_fwd_offload &&
+	    mv88e6xxx_map_virtual_bridge_to_pvt(ds, bridge.num))
+		dev_err(ds->dev, "failed to remap cross-chip Port VLAN\n");
+
+	if (mv88e6xxx_bridge_map(chip, bridge) ||
 	    mv88e6xxx_port_vlan_map(chip, port))
 		dev_err(ds->dev, "failed to remap in-chip Port VLAN\n");
 
@@ -2492,7 +2512,7 @@ static void mv88e6xxx_port_bridge_leave(struct dsa_switch *ds, int port,
 
 static int mv88e6xxx_crosschip_bridge_join(struct dsa_switch *ds,
 					   int tree_index, int sw_index,
-					   int port, struct net_device *br)
+					   int port, struct dsa_bridge bridge)
 {
 	struct mv88e6xxx_chip *chip = ds->priv;
 	int err;
@@ -2509,7 +2529,7 @@ static int mv88e6xxx_crosschip_bridge_join(struct dsa_switch *ds,
 
 static void mv88e6xxx_crosschip_bridge_leave(struct dsa_switch *ds,
 					     int tree_index, int sw_index,
-					     int port, struct net_device *br)
+					     int port, struct dsa_bridge bridge)
 {
 	struct mv88e6xxx_chip *chip = ds->priv;
 
@@ -2522,44 +2542,6 @@ static void mv88e6xxx_crosschip_bridge_leave(struct dsa_switch *ds,
 	mv88e6xxx_reg_unlock(chip);
 }
 
-/* Treat the software bridge as a virtual single-port switch behind the
- * CPU and map in the PVT. First dst->last_switch elements are taken by
- * physical switches, so start from beyond that range.
- */
-static int mv88e6xxx_map_virtual_bridge_to_pvt(struct dsa_switch *ds,
-					       int bridge_num)
-{
-	u8 dev = bridge_num + ds->dst->last_switch + 1;
-	struct mv88e6xxx_chip *chip = ds->priv;
-	int err;
-
-	mv88e6xxx_reg_lock(chip);
-	err = mv88e6xxx_pvt_map(chip, dev, 0);
-	mv88e6xxx_reg_unlock(chip);
-
-	return err;
-}
-
-static int mv88e6xxx_bridge_tx_fwd_offload(struct dsa_switch *ds, int port,
-					   struct net_device *br,
-					   int bridge_num)
-{
-	return mv88e6xxx_map_virtual_bridge_to_pvt(ds, bridge_num);
-}
-
-static void mv88e6xxx_bridge_tx_fwd_unoffload(struct dsa_switch *ds, int port,
-					      struct net_device *br,
-					      int bridge_num)
-{
-	int err;
-
-	err = mv88e6xxx_map_virtual_bridge_to_pvt(ds, bridge_num);
-	if (err) {
-		dev_err(ds->dev, "failed to remap cross-chip Port VLAN: %pe\n",
-			ERR_PTR(err));
-	}
-}
-
 static int mv88e6xxx_software_reset(struct mv88e6xxx_chip *chip)
 {
 	if (chip->info->ops->reset)
@@ -3186,8 +3168,8 @@ static int mv88e6xxx_setup(struct dsa_switch *ds)
 	 * time.
 	 */
 	if (mv88e6xxx_has_pvt(chip))
-		ds->num_fwd_offloading_bridges = MV88E6XXX_MAX_PVT_SWITCHES -
-						 ds->dst->last_switch - 1;
+		ds->max_num_bridges = MV88E6XXX_MAX_PVT_SWITCHES -
+				      ds->dst->last_switch - 1;
 
 	mv88e6xxx_reg_lock(chip);
 
@@ -6279,8 +6261,6 @@ static const struct dsa_switch_ops mv88e6xxx_switch_ops = {
 	.crosschip_lag_change	= mv88e6xxx_crosschip_lag_change,
 	.crosschip_lag_join	= mv88e6xxx_crosschip_lag_join,
 	.crosschip_lag_leave	= mv88e6xxx_crosschip_lag_leave,
-	.port_bridge_tx_fwd_offload = mv88e6xxx_bridge_tx_fwd_offload,
-	.port_bridge_tx_fwd_unoffload = mv88e6xxx_bridge_tx_fwd_unoffload,
 };
 
 static int mv88e6xxx_register_switch(struct mv88e6xxx_chip *chip)
diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c
index 57beab3d3ff3..01655bd77358 100644
--- a/drivers/net/dsa/ocelot/felix.c
+++ b/drivers/net/dsa/ocelot/felix.c
@@ -706,21 +706,21 @@ static int felix_bridge_flags(struct dsa_switch *ds, int port,
 }
 
 static int felix_bridge_join(struct dsa_switch *ds, int port,
-			     struct net_device *br)
+			     struct dsa_bridge bridge, bool *tx_fwd_offload)
 {
 	struct ocelot *ocelot = ds->priv;
 
-	ocelot_port_bridge_join(ocelot, port, br);
+	ocelot_port_bridge_join(ocelot, port, bridge.dev);
 
 	return 0;
 }
 
 static void felix_bridge_leave(struct dsa_switch *ds, int port,
-			       struct net_device *br)
+			       struct dsa_bridge bridge)
 {
 	struct ocelot *ocelot = ds->priv;
 
-	ocelot_port_bridge_leave(ocelot, port, br);
+	ocelot_port_bridge_leave(ocelot, port, bridge.dev);
 }
 
 static int felix_lag_join(struct dsa_switch *ds, int port,
diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c
index 96a7fbf8700c..039694518788 100644
--- a/drivers/net/dsa/qca8k.c
+++ b/drivers/net/dsa/qca8k.c
@@ -1810,8 +1810,9 @@ qca8k_port_stp_state_set(struct dsa_switch *ds, int port, u8 state)
 		  QCA8K_PORT_LOOKUP_STATE_MASK, stp_state);
 }
 
-static int
-qca8k_port_bridge_join(struct dsa_switch *ds, int port, struct net_device *br)
+static int qca8k_port_bridge_join(struct dsa_switch *ds, int port,
+				  struct dsa_bridge bridge,
+				  bool *tx_fwd_offload)
 {
 	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
 	int port_mask, cpu_port;
@@ -1823,7 +1824,7 @@ qca8k_port_bridge_join(struct dsa_switch *ds, int port, struct net_device *br)
 	for (i = 0; i < QCA8K_NUM_PORTS; i++) {
 		if (dsa_is_cpu_port(ds, i))
 			continue;
-		if (dsa_to_port(ds, i)->bridge_dev != br)
+		if (!dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
 			continue;
 		/* Add this port to the portvlan mask of the other ports
 		 * in the bridge
@@ -1844,8 +1845,8 @@ qca8k_port_bridge_join(struct dsa_switch *ds, int port, struct net_device *br)
 	return ret;
 }
 
-static void
-qca8k_port_bridge_leave(struct dsa_switch *ds, int port, struct net_device *br)
+static void qca8k_port_bridge_leave(struct dsa_switch *ds, int port,
+				    struct dsa_bridge bridge)
 {
 	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
 	int cpu_port, i;
@@ -1855,7 +1856,7 @@ qca8k_port_bridge_leave(struct dsa_switch *ds, int port, struct net_device *br)
 	for (i = 0; i < QCA8K_NUM_PORTS; i++) {
 		if (dsa_is_cpu_port(ds, i))
 			continue;
-		if (dsa_to_port(ds, i)->bridge_dev != br)
+		if (!dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
 			continue;
 		/* Remove this port to the portvlan mask of the other ports
 		 * in the bridge
diff --git a/drivers/net/dsa/rtl8366rb.c b/drivers/net/dsa/rtl8366rb.c
index 03deacd83e61..ecc19bd5115f 100644
--- a/drivers/net/dsa/rtl8366rb.c
+++ b/drivers/net/dsa/rtl8366rb.c
@@ -1186,7 +1186,8 @@ rtl8366rb_port_disable(struct dsa_switch *ds, int port)
 
 static int
 rtl8366rb_port_bridge_join(struct dsa_switch *ds, int port,
-			   struct net_device *bridge)
+			   struct dsa_bridge bridge,
+			   bool *tx_fwd_offload)
 {
 	struct realtek_smi *smi = ds->priv;
 	unsigned int port_bitmap = 0;
@@ -1198,7 +1199,7 @@ rtl8366rb_port_bridge_join(struct dsa_switch *ds, int port,
 		if (i == port)
 			continue;
 		/* Not on this bridge */
-		if (dsa_to_port(ds, i)->bridge_dev != bridge)
+		if (!dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
 			continue;
 		/* Join this port to each other port on the bridge */
 		ret = regmap_update_bits(smi->map, RTL8366RB_PORT_ISO(i),
@@ -1218,7 +1219,7 @@ rtl8366rb_port_bridge_join(struct dsa_switch *ds, int port,
 
 static void
 rtl8366rb_port_bridge_leave(struct dsa_switch *ds, int port,
-			    struct net_device *bridge)
+			    struct dsa_bridge bridge)
 {
 	struct realtek_smi *smi = ds->priv;
 	unsigned int port_bitmap = 0;
@@ -1230,7 +1231,7 @@ rtl8366rb_port_bridge_leave(struct dsa_switch *ds, int port,
 		if (i == port)
 			continue;
 		/* Not on this bridge */
-		if (dsa_to_port(ds, i)->bridge_dev != bridge)
+		if (!dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
 			continue;
 		/* Remove this port from any other port on the bridge */
 		ret = regmap_update_bits(smi->map, RTL8366RB_PORT_ISO(i),
diff --git a/drivers/net/dsa/sja1105/sja1105_main.c b/drivers/net/dsa/sja1105/sja1105_main.c
index c343effe2e96..cefde41ce8d6 100644
--- a/drivers/net/dsa/sja1105/sja1105_main.c
+++ b/drivers/net/dsa/sja1105/sja1105_main.c
@@ -118,13 +118,14 @@ static int sja1105_pvid_apply(struct sja1105_private *priv, int port, u16 pvid)
 static int sja1105_commit_pvid(struct dsa_switch *ds, int port)
 {
 	struct dsa_port *dp = dsa_to_port(ds, port);
+	struct net_device *br = dsa_port_bridge_dev_get(dp);
 	struct sja1105_private *priv = ds->priv;
 	struct sja1105_vlan_lookup_entry *vlan;
 	bool drop_untagged = false;
 	int match, rc;
 	u16 pvid;
 
-	if (dp->bridge_dev && br_vlan_enabled(dp->bridge_dev))
+	if (br && br_vlan_enabled(br))
 		pvid = priv->bridge_pvid[port];
 	else
 		pvid = priv->tag_8021q_pvid[port];
@@ -1979,7 +1980,7 @@ static int sja1105_manage_flood_domains(struct sja1105_private *priv)
 }
 
 static int sja1105_bridge_member(struct dsa_switch *ds, int port,
-				 struct net_device *br, bool member)
+				 struct dsa_bridge bridge, bool member)
 {
 	struct sja1105_l2_forwarding_entry *l2_fwd;
 	struct sja1105_private *priv = ds->priv;
@@ -2004,7 +2005,7 @@ static int sja1105_bridge_member(struct dsa_switch *ds, int port,
 		 */
 		if (i == port)
 			continue;
-		if (dsa_to_port(ds, i)->bridge_dev != br)
+		if (!dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
 			continue;
 		sja1105_port_allow_traffic(l2_fwd, i, port, member);
 		sja1105_port_allow_traffic(l2_fwd, port, i, member);
@@ -2073,15 +2074,31 @@ static void sja1105_bridge_stp_state_set(struct dsa_switch *ds, int port,
 }
 
 static int sja1105_bridge_join(struct dsa_switch *ds, int port,
-			       struct net_device *br)
+			       struct dsa_bridge bridge,
+			       bool *tx_fwd_offload)
 {
-	return sja1105_bridge_member(ds, port, br, true);
+	int rc;
+
+	rc = sja1105_bridge_member(ds, port, bridge, true);
+	if (rc)
+		return rc;
+
+	rc = dsa_tag_8021q_bridge_tx_fwd_offload(ds, port, bridge);
+	if (rc) {
+		sja1105_bridge_member(ds, port, bridge, false);
+		return rc;
+	}
+
+	*tx_fwd_offload = true;
+
+	return 0;
 }
 
 static void sja1105_bridge_leave(struct dsa_switch *ds, int port,
-				 struct net_device *br)
+				 struct dsa_bridge bridge)
 {
-	sja1105_bridge_member(ds, port, br, false);
+	dsa_tag_8021q_bridge_tx_fwd_unoffload(ds, port, bridge);
+	sja1105_bridge_member(ds, port, bridge, false);
 }
 
 #define BYTES_PER_KBIT (1000LL / 8)
@@ -2587,8 +2604,9 @@ static int sja1105_prechangeupper(struct dsa_switch *ds, int port,
 
 	if (netif_is_bridge_master(upper)) {
 		list_for_each_entry(dp, &dst->ports, list) {
-			if (dp->bridge_dev && dp->bridge_dev != upper &&
-			    br_vlan_enabled(dp->bridge_dev)) {
+			struct net_device *br = dsa_port_bridge_dev_get(dp);
+
+			if (br && br != upper && br_vlan_enabled(br)) {
 				NL_SET_ERR_MSG_MOD(extack,
 						   "Only one VLAN-aware bridge is supported");
 				return -EBUSY;
@@ -3139,7 +3157,7 @@ static int sja1105_setup(struct dsa_switch *ds)
 	ds->vlan_filtering_is_global = true;
 	ds->untag_bridge_pvid = true;
 	/* tag_8021q has 3 bits for the VBID, and the value 0 is reserved */
-	ds->num_fwd_offloading_bridges = 7;
+	ds->max_num_bridges = 7;
 
 	/* Advertise the 8 egress queues */
 	ds->num_tx_queues = SJA1105_NUM_TC;
@@ -3228,8 +3246,6 @@ static const struct dsa_switch_ops sja1105_switch_ops = {
 	.tag_8021q_vlan_add	= sja1105_dsa_8021q_vlan_add,
 	.tag_8021q_vlan_del	= sja1105_dsa_8021q_vlan_del,
 	.port_prechangeupper	= sja1105_prechangeupper,
-	.port_bridge_tx_fwd_offload = dsa_tag_8021q_bridge_tx_fwd_offload,
-	.port_bridge_tx_fwd_unoffload = dsa_tag_8021q_bridge_tx_fwd_unoffload,
 };
 
 static const struct of_device_id sja1105_dt_ids[];
diff --git a/drivers/net/dsa/xrs700x/xrs700x.c b/drivers/net/dsa/xrs700x/xrs700x.c
index 910fcb3b252b..35fa19ddaf19 100644
--- a/drivers/net/dsa/xrs700x/xrs700x.c
+++ b/drivers/net/dsa/xrs700x/xrs700x.c
@@ -501,7 +501,7 @@ static void xrs700x_mac_link_up(struct dsa_switch *ds, int port,
 }
 
 static int xrs700x_bridge_common(struct dsa_switch *ds, int port,
-				 struct net_device *bridge, bool join)
+				 struct dsa_bridge bridge, bool join)
 {
 	unsigned int i, cpu_mask = 0, mask = 0;
 	struct xrs700x *priv = ds->priv;
@@ -513,14 +513,14 @@ static int xrs700x_bridge_common(struct dsa_switch *ds, int port,
 
 		cpu_mask |= BIT(i);
 
-		if (dsa_to_port(ds, i)->bridge_dev == bridge)
+		if (dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
 			continue;
 
 		mask |= BIT(i);
 	}
 
 	for (i = 0; i < ds->num_ports; i++) {
-		if (dsa_to_port(ds, i)->bridge_dev != bridge)
+		if (!dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
 			continue;
 
 		/* 1 = Disable forwarding to the port */
@@ -540,13 +540,13 @@ static int xrs700x_bridge_common(struct dsa_switch *ds, int port,
 }
 
 static int xrs700x_bridge_join(struct dsa_switch *ds, int port,
-			       struct net_device *bridge)
+			       struct dsa_bridge bridge, bool *tx_fwd_offload)
 {
 	return xrs700x_bridge_common(ds, port, bridge, true);
 }
 
 static void xrs700x_bridge_leave(struct dsa_switch *ds, int port,
-				 struct net_device *bridge)
+				 struct dsa_bridge bridge)
 {
 	xrs700x_bridge_common(ds, port, bridge, false);
 }
diff --git a/include/linux/dsa/8021q.h b/include/linux/dsa/8021q.h
index 254b165f2b44..939a1beaddf7 100644
--- a/include/linux/dsa/8021q.h
+++ b/include/linux/dsa/8021q.h
@@ -7,6 +7,7 @@
 
 #include <linux/refcount.h>
 #include <linux/types.h>
+#include <net/dsa.h>
 
 struct dsa_switch;
 struct dsa_port;
@@ -37,14 +38,12 @@ struct sk_buff *dsa_8021q_xmit(struct sk_buff *skb, struct net_device *netdev,
 void dsa_8021q_rcv(struct sk_buff *skb, int *source_port, int *switch_id);
 
 int dsa_tag_8021q_bridge_tx_fwd_offload(struct dsa_switch *ds, int port,
-					struct net_device *br,
-					int bridge_num);
+					struct dsa_bridge bridge);
 
 void dsa_tag_8021q_bridge_tx_fwd_unoffload(struct dsa_switch *ds, int port,
-					   struct net_device *br,
-					   int bridge_num);
+					   struct dsa_bridge bridge);
 
-u16 dsa_8021q_bridge_tx_fwd_offload_vid(int bridge_num);
+u16 dsa_8021q_bridge_tx_fwd_offload_vid(unsigned int bridge_num);
 
 u16 dsa_tag_8021q_tx_vid(const struct dsa_port *dp);
 
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 8ca9d50cbbc2..bdf308a5c55e 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -219,6 +219,12 @@ struct dsa_mall_tc_entry {
 	};
 };
 
+struct dsa_bridge {
+	struct net_device *dev;
+	unsigned int num;
+	bool tx_fwd_offload;
+	refcount_t refcount;
+};
 
 struct dsa_port {
 	/* A CPU port is physically connected to a master device.
@@ -256,8 +262,7 @@ struct dsa_port {
 	/* Managed by DSA on user ports and by drivers on CPU and DSA ports */
 	bool			learning;
 	u8			stp_state;
-	struct net_device	*bridge_dev;
-	int			bridge_num;
+	struct dsa_bridge	*bridge;
 	struct devlink_port	devlink_port;
 	bool			devlink_port_setup;
 	struct phylink		*pl;
@@ -413,12 +418,12 @@ struct dsa_switch {
 	 */
 	unsigned int		num_lag_ids;
 
-	/* Drivers that support bridge forwarding offload should set this to
-	 * the maximum number of bridges spanning the same switch tree (or all
-	 * trees, in the case of cross-tree bridging support) that can be
-	 * offloaded.
+	/* Drivers that support bridge forwarding offload or FDB isolation
+	 * should set this to the maximum number of bridges spanning the same
+	 * switch tree (or all trees, in the case of cross-tree bridging
+	 * support) that can be offloaded.
 	 */
-	unsigned int		num_fwd_offloading_bridges;
+	unsigned int		max_num_bridges;
 
 	size_t num_ports;
 };
@@ -588,7 +593,7 @@ static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp)
 static inline
 struct net_device *dsa_port_to_bridge_port(const struct dsa_port *dp)
 {
-	if (!dp->bridge_dev)
+	if (!dp->bridge)
 		return NULL;
 
 	if (dp->lag_dev)
@@ -599,6 +604,76 @@ struct net_device *dsa_port_to_bridge_port(const struct dsa_port *dp)
 	return dp->slave;
 }
 
+static inline struct net_device *
+dsa_port_bridge_dev_get(const struct dsa_port *dp)
+{
+	return dp->bridge ? dp->bridge->dev : NULL;
+}
+
+static inline unsigned int dsa_port_bridge_num_get(struct dsa_port *dp)
+{
+	return dp->bridge ? dp->bridge->num : 0;
+}
+
+static inline bool dsa_port_bridge_same(const struct dsa_port *a,
+					const struct dsa_port *b)
+{
+	struct net_device *br_a = dsa_port_bridge_dev_get(a);
+	struct net_device *br_b = dsa_port_bridge_dev_get(b);
+
+	/* Standalone ports are not in the same bridge with one another */
+	return (!br_a || !br_b) ? false : (br_a == br_b);
+}
+
+static inline bool dsa_port_offloads_bridge_port(struct dsa_port *dp,
+						 const struct net_device *dev)
+{
+	return dsa_port_to_bridge_port(dp) == dev;
+}
+
+static inline bool
+dsa_port_offloads_bridge_dev(struct dsa_port *dp,
+			     const struct net_device *bridge_dev)
+{
+	/* DSA ports connected to a bridge, and event was emitted
+	 * for the bridge.
+	 */
+	return dsa_port_bridge_dev_get(dp) == bridge_dev;
+}
+
+static inline bool dsa_port_offloads_bridge(struct dsa_port *dp,
+					    const struct dsa_bridge *bridge)
+{
+	return dsa_port_bridge_dev_get(dp) == bridge->dev;
+}
+
+/* Returns true if any port of this tree offloads the given net_device */
+static inline bool dsa_tree_offloads_bridge_port(struct dsa_switch_tree *dst,
+						 const struct net_device *dev)
+{
+	struct dsa_port *dp;
+
+	list_for_each_entry(dp, &dst->ports, list)
+		if (dsa_port_offloads_bridge_port(dp, dev))
+			return true;
+
+	return false;
+}
+
+/* Returns true if any port of this tree offloads the given bridge */
+static inline bool
+dsa_tree_offloads_bridge_dev(struct dsa_switch_tree *dst,
+			     const struct net_device *bridge_dev)
+{
+	struct dsa_port *dp;
+
+	list_for_each_entry(dp, &dst->ports, list)
+		if (dsa_port_offloads_bridge_dev(dp, bridge_dev))
+			return true;
+
+	return false;
+}
+
 typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid,
 			      bool is_static, void *data);
 struct dsa_switch_ops {
@@ -748,17 +823,10 @@ struct dsa_switch_ops {
 	 */
 	int	(*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs);
 	int	(*port_bridge_join)(struct dsa_switch *ds, int port,
-				    struct net_device *bridge);
+				    struct dsa_bridge bridge,
+				    bool *tx_fwd_offload);
 	void	(*port_bridge_leave)(struct dsa_switch *ds, int port,
-				     struct net_device *bridge);
-	/* Called right after .port_bridge_join() */
-	int	(*port_bridge_tx_fwd_offload)(struct dsa_switch *ds, int port,
-					      struct net_device *bridge,
-					      int bridge_num);
-	/* Called right before .port_bridge_leave() */
-	void	(*port_bridge_tx_fwd_unoffload)(struct dsa_switch *ds, int port,
-						struct net_device *bridge,
-						int bridge_num);
+				     struct dsa_bridge bridge);
 	void	(*port_stp_state_set)(struct dsa_switch *ds, int port,
 				      u8 state);
 	void	(*port_fast_age)(struct dsa_switch *ds, int port);
@@ -830,10 +898,10 @@ struct dsa_switch_ops {
 	 */
 	int	(*crosschip_bridge_join)(struct dsa_switch *ds, int tree_index,
 					 int sw_index, int port,
-					 struct net_device *br);
+					 struct dsa_bridge bridge);
 	void	(*crosschip_bridge_leave)(struct dsa_switch *ds, int tree_index,
 					  int sw_index, int port,
-					  struct net_device *br);
+					  struct dsa_bridge bridge);
 	int	(*crosschip_lag_change)(struct dsa_switch *ds, int sw_index,
 					int port);
 	int	(*crosschip_lag_join)(struct dsa_switch *ds, int sw_index,
diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index 826957b6442b..8814fa0e44c8 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -129,35 +129,52 @@ void dsa_lag_unmap(struct dsa_switch_tree *dst, struct net_device *lag)
 	}
 }
 
+struct dsa_bridge *dsa_tree_bridge_find(struct dsa_switch_tree *dst,
+					const struct net_device *br)
+{
+	struct dsa_port *dp;
+
+	list_for_each_entry(dp, &dst->ports, list)
+		if (dsa_port_bridge_dev_get(dp) == br)
+			return dp->bridge;
+
+	return NULL;
+}
+
 static int dsa_bridge_num_find(const struct net_device *bridge_dev)
 {
 	struct dsa_switch_tree *dst;
-	struct dsa_port *dp;
 
-	/* When preparing the offload for a port, it will have a valid
-	 * dp->bridge_dev pointer but a not yet valid dp->bridge_num.
-	 * However there might be other ports having the same dp->bridge_dev
-	 * and a valid dp->bridge_num, so just ignore this port.
-	 */
-	list_for_each_entry(dst, &dsa_tree_list, list)
-		list_for_each_entry(dp, &dst->ports, list)
-			if (dp->bridge_dev == bridge_dev &&
-			    dp->bridge_num != -1)
-				return dp->bridge_num;
+	list_for_each_entry(dst, &dsa_tree_list, list) {
+		struct dsa_bridge *bridge;
 
-	return -1;
+		bridge = dsa_tree_bridge_find(dst, bridge_dev);
+		if (bridge)
+			return bridge->num;
+	}
+
+	return 0;
 }
 
-int dsa_bridge_num_get(const struct net_device *bridge_dev, int max)
+unsigned int dsa_bridge_num_get(const struct net_device *bridge_dev, int max)
 {
-	int bridge_num = dsa_bridge_num_find(bridge_dev);
+	unsigned int bridge_num = dsa_bridge_num_find(bridge_dev);
 
-	if (bridge_num < 0) {
-		/* First port that offloads TX forwarding for this bridge */
-		bridge_num = find_first_zero_bit(&dsa_fwd_offloading_bridges,
-						 DSA_MAX_NUM_OFFLOADING_BRIDGES);
+	/* Switches without FDB isolation support don't get unique
+	 * bridge numbering
+	 */
+	if (!max)
+		return 0;
+
+	if (!bridge_num) {
+		/* First port that requests FDB isolation or TX forwarding
+		 * offload for this bridge
+		 */
+		bridge_num = find_next_zero_bit(&dsa_fwd_offloading_bridges,
+						DSA_MAX_NUM_OFFLOADING_BRIDGES,
+						1);
 		if (bridge_num >= max)
-			return -1;
+			return 0;
 
 		set_bit(bridge_num, &dsa_fwd_offloading_bridges);
 	}
@@ -165,13 +182,14 @@ int dsa_bridge_num_get(const struct net_device *bridge_dev, int max)
 	return bridge_num;
 }
 
-void dsa_bridge_num_put(const struct net_device *bridge_dev, int bridge_num)
+void dsa_bridge_num_put(const struct net_device *bridge_dev,
+			unsigned int bridge_num)
 {
-	/* Check if the bridge is still in use, otherwise it is time
-	 * to clean it up so we can reuse this bridge_num later.
+	/* Since we refcount bridges, we know that when we call this function
+	 * it is no longer in use, so we can just go ahead and remove it from
+	 * the bit mask.
 	 */
-	if (dsa_bridge_num_find(bridge_dev) < 0)
-		clear_bit(bridge_num, &dsa_fwd_offloading_bridges);
+	clear_bit(bridge_num, &dsa_fwd_offloading_bridges);
 }
 
 struct dsa_switch *dsa_switch_find(int tree_index, int sw_index)
@@ -1184,7 +1202,6 @@ static struct dsa_port *dsa_port_touch(struct dsa_switch *ds, int index)
 
 	dp->ds = ds;
 	dp->index = index;
-	dp->bridge_num = -1;
 
 	INIT_LIST_HEAD(&dp->list);
 	list_add_tail(&dp->list, &dst->ports);
diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h
index 3fb2c37c9b88..38ce5129a33d 100644
--- a/net/dsa/dsa_priv.h
+++ b/net/dsa/dsa_priv.h
@@ -52,10 +52,11 @@ struct dsa_notifier_ageing_time_info {
 
 /* DSA_NOTIFIER_BRIDGE_* */
 struct dsa_notifier_bridge_info {
-	struct net_device *br;
+	struct dsa_bridge bridge;
 	int tree_index;
 	int sw_index;
 	int port;
+	bool tx_fwd_offload;
 };
 
 /* DSA_NOTIFIER_FDB_* */
@@ -266,47 +267,6 @@ void dsa_port_hsr_leave(struct dsa_port *dp, struct net_device *hsr);
 int dsa_port_tag_8021q_vlan_add(struct dsa_port *dp, u16 vid, bool broadcast);
 void dsa_port_tag_8021q_vlan_del(struct dsa_port *dp, u16 vid, bool broadcast);
 
-static inline bool dsa_port_offloads_bridge_port(struct dsa_port *dp,
-						 const struct net_device *dev)
-{
-	return dsa_port_to_bridge_port(dp) == dev;
-}
-
-static inline bool dsa_port_offloads_bridge(struct dsa_port *dp,
-					    const struct net_device *bridge_dev)
-{
-	/* DSA ports connected to a bridge, and event was emitted
-	 * for the bridge.
-	 */
-	return dp->bridge_dev == bridge_dev;
-}
-
-/* Returns true if any port of this tree offloads the given net_device */
-static inline bool dsa_tree_offloads_bridge_port(struct dsa_switch_tree *dst,
-						 const struct net_device *dev)
-{
-	struct dsa_port *dp;
-
-	list_for_each_entry(dp, &dst->ports, list)
-		if (dsa_port_offloads_bridge_port(dp, dev))
-			return true;
-
-	return false;
-}
-
-/* Returns true if any port of this tree offloads the given bridge */
-static inline bool dsa_tree_offloads_bridge(struct dsa_switch_tree *dst,
-					    const struct net_device *bridge_dev)
-{
-	struct dsa_port *dp;
-
-	list_for_each_entry(dp, &dst->ports, list)
-		if (dsa_port_offloads_bridge(dp, bridge_dev))
-			return true;
-
-	return false;
-}
-
 /* slave.c */
 extern const struct dsa_device_ops notag_netdev_ops;
 extern struct notifier_block dsa_slave_switchdev_notifier;
@@ -345,7 +305,7 @@ dsa_slave_to_master(const struct net_device *dev)
 static inline struct sk_buff *dsa_untag_bridge_pvid(struct sk_buff *skb)
 {
 	struct dsa_port *dp = dsa_slave_to_port(skb->dev);
-	struct net_device *br = dp->bridge_dev;
+	struct net_device *br = dsa_port_bridge_dev_get(dp);
 	struct net_device *dev = skb->dev;
 	struct net_device *upper_dev;
 	u16 vid, pvid, proto;
@@ -415,7 +375,7 @@ dsa_find_designated_bridge_port_by_vid(struct net_device *master, u16 vid)
 		if (dp->type != DSA_PORT_TYPE_USER)
 			continue;
 
-		if (!dp->bridge_dev)
+		if (!dp->bridge)
 			continue;
 
 		if (dp->stp_state != BR_STATE_LEARNING &&
@@ -444,7 +404,7 @@ dsa_find_designated_bridge_port_by_vid(struct net_device *master, u16 vid)
 /* If the ingress port offloads the bridge, we mark the frame as autonomously
  * forwarded by hardware, so the software bridge doesn't forward in twice, back
  * to us, because we already did. However, if we're in fallback mode and we do
- * software bridging, we are not offloading it, therefore the dp->bridge_dev
+ * software bridging, we are not offloading it, therefore the dp->bridge
  * pointer is not populated, and flooding needs to be done by software (we are
  * effectively operating in standalone ports mode).
  */
@@ -452,7 +412,7 @@ static inline void dsa_default_offload_fwd_mark(struct sk_buff *skb)
 {
 	struct dsa_port *dp = dsa_slave_to_port(skb->dev);
 
-	skb->offload_fwd_mark = !!(dp->bridge_dev);
+	skb->offload_fwd_mark = !!(dp->bridge);
 }
 
 /* Helper for removing DSA header tags from packets in the RX path.
@@ -546,8 +506,11 @@ int dsa_tree_change_tag_proto(struct dsa_switch_tree *dst,
 			      struct net_device *master,
 			      const struct dsa_device_ops *tag_ops,
 			      const struct dsa_device_ops *old_tag_ops);
-int dsa_bridge_num_get(const struct net_device *bridge_dev, int max);
-void dsa_bridge_num_put(const struct net_device *bridge_dev, int bridge_num);
+unsigned int dsa_bridge_num_get(const struct net_device *bridge_dev, int max);
+void dsa_bridge_num_put(const struct net_device *bridge_dev,
+			unsigned int bridge_num);
+struct dsa_bridge *dsa_tree_bridge_find(struct dsa_switch_tree *dst,
+					const struct net_device *br);
 
 /* tag_8021q.c */
 int dsa_tag_8021q_bridge_join(struct dsa_switch *ds,
diff --git a/net/dsa/port.c b/net/dsa/port.c
index 6d5ebe61280b..20f183213cbc 100644
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -130,7 +130,7 @@ int dsa_port_enable_rt(struct dsa_port *dp, struct phy_device *phy)
 			return err;
 	}
 
-	if (!dp->bridge_dev)
+	if (!dp->bridge)
 		dsa_port_set_state_now(dp, BR_STATE_FORWARDING, false);
 
 	if (dp->pl)
@@ -158,7 +158,7 @@ void dsa_port_disable_rt(struct dsa_port *dp)
 	if (dp->pl)
 		phylink_stop(dp->pl);
 
-	if (!dp->bridge_dev)
+	if (!dp->bridge)
 		dsa_port_set_state_now(dp, BR_STATE_DISABLED, false);
 
 	if (ds->ops->port_disable)
@@ -221,7 +221,7 @@ static int dsa_port_switchdev_sync_attrs(struct dsa_port *dp,
 					 struct netlink_ext_ack *extack)
 {
 	struct net_device *brport_dev = dsa_port_to_bridge_port(dp);
-	struct net_device *br = dp->bridge_dev;
+	struct net_device *br = dsa_port_bridge_dev_get(dp);
 	int err;
 
 	err = dsa_port_inherit_brport_flags(dp, extack);
@@ -270,52 +270,55 @@ static void dsa_port_switchdev_unsync_attrs(struct dsa_port *dp)
 	 */
 }
 
-static void dsa_port_bridge_tx_fwd_unoffload(struct dsa_port *dp,
-					     struct net_device *bridge_dev)
+static int dsa_port_bridge_create(struct dsa_port *dp,
+				  struct net_device *br,
+				  struct netlink_ext_ack *extack)
 {
-	int bridge_num = dp->bridge_num;
 	struct dsa_switch *ds = dp->ds;
+	struct dsa_bridge *bridge;
 
-	/* No bridge TX forwarding offload => do nothing */
-	if (!ds->ops->port_bridge_tx_fwd_unoffload || dp->bridge_num == -1)
-		return;
+	bridge = dsa_tree_bridge_find(ds->dst, br);
+	if (bridge) {
+		refcount_inc(&bridge->refcount);
+		dp->bridge = bridge;
+		return 0;
+	}
 
-	dp->bridge_num = -1;
+	bridge = kzalloc(sizeof(*bridge), GFP_KERNEL);
+	if (!bridge)
+		return -ENOMEM;
 
-	dsa_bridge_num_put(bridge_dev, bridge_num);
+	refcount_set(&bridge->refcount, 1);
 
-	/* Notify the chips only once the offload has been deactivated, so
-	 * that they can update their configuration accordingly.
-	 */
-	ds->ops->port_bridge_tx_fwd_unoffload(ds, dp->index, bridge_dev,
-					      bridge_num);
+	bridge->dev = br;
+
+	bridge->num = dsa_bridge_num_get(br, ds->max_num_bridges);
+	if (ds->max_num_bridges && !bridge->num) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Range of offloadable bridges exceeded");
+		kfree(bridge);
+		return -EOPNOTSUPP;
+	}
+
+	dp->bridge = bridge;
+
+	return 0;
 }
 
-static bool dsa_port_bridge_tx_fwd_offload(struct dsa_port *dp,
-					   struct net_device *bridge_dev)
+static void dsa_port_bridge_destroy(struct dsa_port *dp,
+				    const struct net_device *br)
 {
-	struct dsa_switch *ds = dp->ds;
-	int bridge_num, err;
+	struct dsa_bridge *bridge = dp->bridge;
 
-	if (!ds->ops->port_bridge_tx_fwd_offload)
-		return false;
+	dp->bridge = NULL;
 
-	bridge_num = dsa_bridge_num_get(bridge_dev,
-					ds->num_fwd_offloading_bridges);
-	if (bridge_num < 0)
-		return false;
-
-	dp->bridge_num = bridge_num;
+	if (!refcount_dec_and_test(&bridge->refcount))
+		return;
 
-	/* Notify the driver */
-	err = ds->ops->port_bridge_tx_fwd_offload(ds, dp->index, bridge_dev,
-						  bridge_num);
-	if (err) {
-		dsa_port_bridge_tx_fwd_unoffload(dp, bridge_dev);
-		return false;
-	}
+	if (bridge->num)
+		dsa_bridge_num_put(br, bridge->num);
 
-	return true;
+	kfree(bridge);
 }
 
 int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br,
@@ -325,30 +328,32 @@ int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br,
 		.tree_index = dp->ds->dst->index,
 		.sw_index = dp->ds->index,
 		.port = dp->index,
-		.br = br,
 	};
 	struct net_device *dev = dp->slave;
 	struct net_device *brport_dev;
-	bool tx_fwd_offload;
 	int err;
 
 	/* Here the interface is already bridged. Reflect the current
 	 * configuration so that drivers can program their chips accordingly.
 	 */
-	dp->bridge_dev = br;
+	err = dsa_port_bridge_create(dp, br, extack);
+	if (err)
+		return err;
 
 	brport_dev = dsa_port_to_bridge_port(dp);
 
+	info.bridge = *dp->bridge;
 	err = dsa_broadcast(DSA_NOTIFIER_BRIDGE_JOIN, &info);
 	if (err)
 		goto out_rollback;
 
-	tx_fwd_offload = dsa_port_bridge_tx_fwd_offload(dp, br);
+	/* Drivers which support bridge TX forwarding should set this */
+	dp->bridge->tx_fwd_offload = info.tx_fwd_offload;
 
 	err = switchdev_bridge_port_offload(brport_dev, dev, dp,
 					    &dsa_slave_switchdev_notifier,
 					    &dsa_slave_switchdev_blocking_notifier,
-					    tx_fwd_offload, extack);
+					    dp->bridge->tx_fwd_offload, extack);
 	if (err)
 		goto out_rollback_unbridge;
 
@@ -365,7 +370,7 @@ out_rollback_unoffload:
 out_rollback_unbridge:
 	dsa_broadcast(DSA_NOTIFIER_BRIDGE_LEAVE, &info);
 out_rollback:
-	dp->bridge_dev = NULL;
+	dsa_port_bridge_destroy(dp, br);
 	return err;
 }
 
@@ -390,16 +395,14 @@ void dsa_port_bridge_leave(struct dsa_port *dp, struct net_device *br)
 		.tree_index = dp->ds->dst->index,
 		.sw_index = dp->ds->index,
 		.port = dp->index,
-		.br = br,
+		.bridge = *dp->bridge,
 	};
 	int err;
 
 	/* Here the port is already unbridged. Reflect the current configuration
 	 * so that drivers can program their chips accordingly.
 	 */
-	dp->bridge_dev = NULL;
-
-	dsa_port_bridge_tx_fwd_unoffload(dp, br);
+	dsa_port_bridge_destroy(dp, br);
 
 	err = dsa_broadcast(DSA_NOTIFIER_BRIDGE_LEAVE, &info);
 	if (err)
@@ -477,12 +480,15 @@ err_lag_join:
 
 void dsa_port_pre_lag_leave(struct dsa_port *dp, struct net_device *lag)
 {
-	if (dp->bridge_dev)
-		dsa_port_pre_bridge_leave(dp, dp->bridge_dev);
+	struct net_device *br = dsa_port_bridge_dev_get(dp);
+
+	if (br)
+		dsa_port_pre_bridge_leave(dp, br);
 }
 
 void dsa_port_lag_leave(struct dsa_port *dp, struct net_device *lag)
 {
+	struct net_device *br = dsa_port_bridge_dev_get(dp);
 	struct dsa_notifier_lag_info info = {
 		.sw_index = dp->ds->index,
 		.port = dp->index,
@@ -496,8 +502,8 @@ void dsa_port_lag_leave(struct dsa_port *dp, struct net_device *lag)
 	/* Port might have been part of a LAG that in turn was
 	 * attached to a bridge.
 	 */
-	if (dp->bridge_dev)
-		dsa_port_bridge_leave(dp, dp->bridge_dev);
+	if (br)
+		dsa_port_bridge_leave(dp, br);
 
 	dp->lag_tx_enabled = false;
 	dp->lag_dev = NULL;
@@ -526,8 +532,8 @@ static bool dsa_port_can_apply_vlan_filtering(struct dsa_port *dp,
 	 * as long as we have 8021q uppers.
 	 */
 	if (vlan_filtering && dsa_port_is_user(dp)) {
+		struct net_device *br = dsa_port_bridge_dev_get(dp);
 		struct net_device *upper_dev, *slave = dp->slave;
-		struct net_device *br = dp->bridge_dev;
 		struct list_head *iter;
 
 		netdev_for_each_upper_dev_rcu(slave, upper_dev, iter) {
@@ -561,17 +567,15 @@ static bool dsa_port_can_apply_vlan_filtering(struct dsa_port *dp,
 	 * different setting than what is being requested.
 	 */
 	dsa_switch_for_each_port(other_dp, ds) {
-		struct net_device *other_bridge;
+		struct net_device *other_br = dsa_port_bridge_dev_get(other_dp);
 
-		other_bridge = other_dp->bridge_dev;
-		if (!other_bridge)
-			continue;
 		/* If it's the same bridge, it also has same
 		 * vlan_filtering setting => no need to check
 		 */
-		if (other_bridge == dp->bridge_dev)
+		if (!other_br || other_br == dsa_port_bridge_dev_get(dp))
 			continue;
-		if (br_vlan_enabled(other_bridge) != vlan_filtering) {
+
+		if (br_vlan_enabled(other_br) != vlan_filtering) {
 			NL_SET_ERR_MSG_MOD(extack,
 					   "VLAN filtering is a global setting");
 			return false;
@@ -655,13 +659,13 @@ restore:
  */
 bool dsa_port_skip_vlan_configuration(struct dsa_port *dp)
 {
+	struct net_device *br = dsa_port_bridge_dev_get(dp);
 	struct dsa_switch *ds = dp->ds;
 
-	if (!dp->bridge_dev)
+	if (!br)
 		return false;
 
-	return (!ds->configure_vlan_while_not_filtering &&
-		!br_vlan_enabled(dp->bridge_dev));
+	return !ds->configure_vlan_while_not_filtering && !br_vlan_enabled(br);
 }
 
 int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock)
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 33b54eadc641..88f7b8686dac 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -289,14 +289,14 @@ static int dsa_slave_port_attr_set(struct net_device *dev, const void *ctx,
 		ret = dsa_port_set_state(dp, attr->u.stp_state, true);
 		break;
 	case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
-		if (!dsa_port_offloads_bridge(dp, attr->orig_dev))
+		if (!dsa_port_offloads_bridge_dev(dp, attr->orig_dev))
 			return -EOPNOTSUPP;
 
 		ret = dsa_port_vlan_filtering(dp, attr->u.vlan_filtering,
 					      extack);
 		break;
 	case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
-		if (!dsa_port_offloads_bridge(dp, attr->orig_dev))
+		if (!dsa_port_offloads_bridge_dev(dp, attr->orig_dev))
 			return -EOPNOTSUPP;
 
 		ret = dsa_port_ageing_time(dp, attr->u.ageing_time);
@@ -363,7 +363,7 @@ static int dsa_slave_vlan_add(struct net_device *dev,
 	/* Deny adding a bridge VLAN when there is already an 802.1Q upper with
 	 * the same VID.
 	 */
-	if (br_vlan_enabled(dp->bridge_dev)) {
+	if (br_vlan_enabled(dsa_port_bridge_dev_get(dp))) {
 		rcu_read_lock();
 		err = dsa_slave_vlan_check_for_8021q_uppers(dev, &vlan);
 		rcu_read_unlock();
@@ -409,7 +409,7 @@ static int dsa_slave_port_obj_add(struct net_device *dev, const void *ctx,
 		err = dsa_port_mdb_add(dp, SWITCHDEV_OBJ_PORT_MDB(obj));
 		break;
 	case SWITCHDEV_OBJ_ID_HOST_MDB:
-		if (!dsa_port_offloads_bridge(dp, obj->orig_dev))
+		if (!dsa_port_offloads_bridge_dev(dp, obj->orig_dev))
 			return -EOPNOTSUPP;
 
 		err = dsa_port_host_mdb_add(dp, SWITCHDEV_OBJ_PORT_MDB(obj));
@@ -421,13 +421,13 @@ static int dsa_slave_port_obj_add(struct net_device *dev, const void *ctx,
 		err = dsa_slave_vlan_add(dev, obj, extack);
 		break;
 	case SWITCHDEV_OBJ_ID_MRP:
-		if (!dsa_port_offloads_bridge(dp, obj->orig_dev))
+		if (!dsa_port_offloads_bridge_dev(dp, obj->orig_dev))
 			return -EOPNOTSUPP;
 
 		err = dsa_port_mrp_add(dp, SWITCHDEV_OBJ_MRP(obj));
 		break;
 	case SWITCHDEV_OBJ_ID_RING_ROLE_MRP:
-		if (!dsa_port_offloads_bridge(dp, obj->orig_dev))
+		if (!dsa_port_offloads_bridge_dev(dp, obj->orig_dev))
 			return -EOPNOTSUPP;
 
 		err = dsa_port_mrp_add_ring_role(dp,
@@ -483,7 +483,7 @@ static int dsa_slave_port_obj_del(struct net_device *dev, const void *ctx,
 		err = dsa_port_mdb_del(dp, SWITCHDEV_OBJ_PORT_MDB(obj));
 		break;
 	case SWITCHDEV_OBJ_ID_HOST_MDB:
-		if (!dsa_port_offloads_bridge(dp, obj->orig_dev))
+		if (!dsa_port_offloads_bridge_dev(dp, obj->orig_dev))
 			return -EOPNOTSUPP;
 
 		err = dsa_port_host_mdb_del(dp, SWITCHDEV_OBJ_PORT_MDB(obj));
@@ -495,13 +495,13 @@ static int dsa_slave_port_obj_del(struct net_device *dev, const void *ctx,
 		err = dsa_slave_vlan_del(dev, obj);
 		break;
 	case SWITCHDEV_OBJ_ID_MRP:
-		if (!dsa_port_offloads_bridge(dp, obj->orig_dev))
+		if (!dsa_port_offloads_bridge_dev(dp, obj->orig_dev))
 			return -EOPNOTSUPP;
 
 		err = dsa_port_mrp_del(dp, SWITCHDEV_OBJ_MRP(obj));
 		break;
 	case SWITCHDEV_OBJ_ID_RING_ROLE_MRP:
-		if (!dsa_port_offloads_bridge(dp, obj->orig_dev))
+		if (!dsa_port_offloads_bridge_dev(dp, obj->orig_dev))
 			return -EOPNOTSUPP;
 
 		err = dsa_port_mrp_del_ring_role(dp,
@@ -1564,7 +1564,7 @@ static void dsa_bridge_mtu_normalization(struct dsa_port *dp)
 	if (!dp->ds->mtu_enforcement_ingress)
 		return;
 
-	if (!dp->bridge_dev)
+	if (!dp->bridge)
 		return;
 
 	INIT_LIST_HEAD(&hw_port_list);
@@ -1580,7 +1580,7 @@ static void dsa_bridge_mtu_normalization(struct dsa_port *dp)
 			if (other_dp->type != DSA_PORT_TYPE_USER)
 				continue;
 
-			if (other_dp->bridge_dev != dp->bridge_dev)
+			if (!dsa_port_bridge_same(dp, other_dp))
 				continue;
 
 			if (!other_dp->ds->mtu_enforcement_ingress)
@@ -2220,7 +2220,7 @@ dsa_prevent_bridging_8021q_upper(struct net_device *dev,
 				 struct netdev_notifier_changeupper_info *info)
 {
 	struct netlink_ext_ack *ext_ack;
-	struct net_device *slave;
+	struct net_device *slave, *br;
 	struct dsa_port *dp;
 
 	ext_ack = netdev_notifier_info_to_extack(&info->info);
@@ -2233,11 +2233,12 @@ dsa_prevent_bridging_8021q_upper(struct net_device *dev,
 		return NOTIFY_DONE;
 
 	dp = dsa_slave_to_port(slave);
-	if (!dp->bridge_dev)
+	br = dsa_port_bridge_dev_get(dp);
+	if (!br)
 		return NOTIFY_DONE;
 
 	/* Deny enslaving a VLAN device into a VLAN-aware bridge */
-	if (br_vlan_enabled(dp->bridge_dev) &&
+	if (br_vlan_enabled(br) &&
 	    netif_is_bridge_master(info->upper_dev) && info->linking) {
 		NL_SET_ERR_MSG_MOD(ext_ack,
 				   "Cannot enslave VLAN device into VLAN aware bridge");
@@ -2252,7 +2253,7 @@ dsa_slave_check_8021q_upper(struct net_device *dev,
 			    struct netdev_notifier_changeupper_info *info)
 {
 	struct dsa_port *dp = dsa_slave_to_port(dev);
-	struct net_device *br = dp->bridge_dev;
+	struct net_device *br = dsa_port_bridge_dev_get(dp);
 	struct bridge_vlan_info br_info;
 	struct netlink_ext_ack *extack;
 	int err = NOTIFY_DONE;
@@ -2449,7 +2450,7 @@ static bool dsa_foreign_dev_check(const struct net_device *dev,
 	struct dsa_switch_tree *dst = dp->ds->dst;
 
 	if (netif_is_bridge_master(foreign_dev))
-		return !dsa_tree_offloads_bridge(dst, foreign_dev);
+		return !dsa_tree_offloads_bridge_dev(dst, foreign_dev);
 
 	if (netif_is_bridge_port(foreign_dev))
 		return !dsa_tree_offloads_bridge_port(dst, foreign_dev);
diff --git a/net/dsa/switch.c b/net/dsa/switch.c
index bb155a16d454..9c92edd96961 100644
--- a/net/dsa/switch.c
+++ b/net/dsa/switch.c
@@ -95,7 +95,8 @@ static int dsa_switch_bridge_join(struct dsa_switch *ds,
 		if (!ds->ops->port_bridge_join)
 			return -EOPNOTSUPP;
 
-		err = ds->ops->port_bridge_join(ds, info->port, info->br);
+		err = ds->ops->port_bridge_join(ds, info->port, info->bridge,
+						&info->tx_fwd_offload);
 		if (err)
 			return err;
 	}
@@ -104,7 +105,7 @@ static int dsa_switch_bridge_join(struct dsa_switch *ds,
 	    ds->ops->crosschip_bridge_join) {
 		err = ds->ops->crosschip_bridge_join(ds, info->tree_index,
 						     info->sw_index,
-						     info->port, info->br);
+						     info->port, info->bridge);
 		if (err)
 			return err;
 	}
@@ -124,19 +125,20 @@ static int dsa_switch_bridge_leave(struct dsa_switch *ds,
 
 	if (dst->index == info->tree_index && ds->index == info->sw_index &&
 	    ds->ops->port_bridge_leave)
-		ds->ops->port_bridge_leave(ds, info->port, info->br);
+		ds->ops->port_bridge_leave(ds, info->port, info->bridge);
 
 	if ((dst->index != info->tree_index || ds->index != info->sw_index) &&
 	    ds->ops->crosschip_bridge_leave)
 		ds->ops->crosschip_bridge_leave(ds, info->tree_index,
 						info->sw_index, info->port,
-						info->br);
+						info->bridge);
 
-	if (ds->needs_standalone_vlan_filtering && !br_vlan_enabled(info->br)) {
+	if (ds->needs_standalone_vlan_filtering &&
+	    !br_vlan_enabled(info->bridge.dev)) {
 		change_vlan_filtering = true;
 		vlan_filtering = true;
 	} else if (!ds->needs_standalone_vlan_filtering &&
-		   br_vlan_enabled(info->br)) {
+		   br_vlan_enabled(info->bridge.dev)) {
 		change_vlan_filtering = true;
 		vlan_filtering = false;
 	}
@@ -151,11 +153,9 @@ static int dsa_switch_bridge_leave(struct dsa_switch *ds,
 	 */
 	if (change_vlan_filtering && ds->vlan_filtering_is_global) {
 		dsa_switch_for_each_port(dp, ds) {
-			struct net_device *bridge_dev;
+			struct net_device *br = dsa_port_bridge_dev_get(dp);
 
-			bridge_dev = dp->bridge_dev;
-
-			if (bridge_dev && br_vlan_enabled(bridge_dev)) {
+			if (br && br_vlan_enabled(br)) {
 				change_vlan_filtering = false;
 				break;
 			}
diff --git a/net/dsa/tag_8021q.c b/net/dsa/tag_8021q.c
index 72cac2c0af7b..27712a81c967 100644
--- a/net/dsa/tag_8021q.c
+++ b/net/dsa/tag_8021q.c
@@ -67,10 +67,12 @@
 #define DSA_8021Q_PORT(x)		(((x) << DSA_8021Q_PORT_SHIFT) & \
 						 DSA_8021Q_PORT_MASK)
 
-u16 dsa_8021q_bridge_tx_fwd_offload_vid(int bridge_num)
+u16 dsa_8021q_bridge_tx_fwd_offload_vid(unsigned int bridge_num)
 {
-	/* The VBID value of 0 is reserved for precise TX */
-	return DSA_8021Q_DIR_TX | DSA_8021Q_VBID(bridge_num + 1);
+	/* The VBID value of 0 is reserved for precise TX, but it is also
+	 * reserved/invalid for the bridge_num, so all is well.
+	 */
+	return DSA_8021Q_DIR_TX | DSA_8021Q_VBID(bridge_num);
 }
 EXPORT_SYMBOL_GPL(dsa_8021q_bridge_tx_fwd_offload_vid);
 
@@ -335,7 +337,7 @@ dsa_port_tag_8021q_bridge_match(struct dsa_port *dp,
 		return false;
 
 	if (dsa_port_is_user(dp))
-		return dp->bridge_dev == info->br;
+		return dsa_port_offloads_bridge(dp, &info->bridge);
 
 	return false;
 }
@@ -408,10 +410,9 @@ int dsa_tag_8021q_bridge_leave(struct dsa_switch *ds,
 }
 
 int dsa_tag_8021q_bridge_tx_fwd_offload(struct dsa_switch *ds, int port,
-					struct net_device *br,
-					int bridge_num)
+					struct dsa_bridge bridge)
 {
-	u16 tx_vid = dsa_8021q_bridge_tx_fwd_offload_vid(bridge_num);
+	u16 tx_vid = dsa_8021q_bridge_tx_fwd_offload_vid(bridge.num);
 
 	return dsa_port_tag_8021q_vlan_add(dsa_to_port(ds, port), tx_vid,
 					   true);
@@ -419,10 +420,9 @@ int dsa_tag_8021q_bridge_tx_fwd_offload(struct dsa_switch *ds, int port,
 EXPORT_SYMBOL_GPL(dsa_tag_8021q_bridge_tx_fwd_offload);
 
 void dsa_tag_8021q_bridge_tx_fwd_unoffload(struct dsa_switch *ds, int port,
-					   struct net_device *br,
-					   int bridge_num)
+					   struct dsa_bridge bridge)
 {
-	u16 tx_vid = dsa_8021q_bridge_tx_fwd_offload_vid(bridge_num);
+	u16 tx_vid = dsa_8021q_bridge_tx_fwd_offload_vid(bridge.num);
 
 	dsa_port_tag_8021q_vlan_del(dsa_to_port(ds, port), tx_vid, true);
 }
diff --git a/net/dsa/tag_dsa.c b/net/dsa/tag_dsa.c
index b3da4b2ea11c..8abf39dcac64 100644
--- a/net/dsa/tag_dsa.c
+++ b/net/dsa/tag_dsa.c
@@ -132,6 +132,7 @@ static struct sk_buff *dsa_xmit_ll(struct sk_buff *skb, struct net_device *dev,
 	u8 *dsa_header;
 
 	if (skb->offload_fwd_mark) {
+		unsigned int bridge_num = dsa_port_bridge_num_get(dp);
 		struct dsa_switch_tree *dst = dp->ds->dst;
 
 		cmd = DSA_CMD_FORWARD;
@@ -140,7 +141,7 @@ static struct sk_buff *dsa_xmit_ll(struct sk_buff *skb, struct net_device *dev,
 		 * packets on behalf of a virtual switch device with an index
 		 * past the physical switches.
 		 */
-		tag_dev = dst->last_switch + 1 + dp->bridge_num;
+		tag_dev = dst->last_switch + bridge_num;
 		tag_port = 0;
 	} else {
 		cmd = DSA_CMD_FROM_CPU;
@@ -165,7 +166,7 @@ static struct sk_buff *dsa_xmit_ll(struct sk_buff *skb, struct net_device *dev,
 			dsa_header[2] &= ~0x10;
 		}
 	} else {
-		struct net_device *br = dp->bridge_dev;
+		struct net_device *br = dsa_port_bridge_dev_get(dp);
 		u16 vid;
 
 		vid = br ? MV88E6XXX_VID_BRIDGED : MV88E6XXX_VID_STANDALONE;
diff --git a/net/dsa/tag_ocelot.c b/net/dsa/tag_ocelot.c
index de1c849a0a70..4ba460c5a880 100644
--- a/net/dsa/tag_ocelot.c
+++ b/net/dsa/tag_ocelot.c
@@ -12,7 +12,7 @@
 static void ocelot_xmit_get_vlan_info(struct sk_buff *skb, struct dsa_port *dp,
 				      u64 *vlan_tci, u64 *tag_type)
 {
-	struct net_device *br = READ_ONCE(dp->bridge_dev);
+	struct net_device *br = dsa_port_bridge_dev_get(dp);
 	struct vlan_ethhdr *hdr;
 	u16 proto, tci;
 
diff --git a/net/dsa/tag_sja1105.c b/net/dsa/tag_sja1105.c
index 262c8833a910..6c293c2a3008 100644
--- a/net/dsa/tag_sja1105.c
+++ b/net/dsa/tag_sja1105.c
@@ -159,14 +159,16 @@ static u16 sja1105_xmit_tpid(struct dsa_port *dp)
 	 * need to find it.
 	 */
 	dsa_switch_for_each_port(other_dp, ds) {
-		if (!other_dp->bridge_dev)
+		struct net_device *br = dsa_port_bridge_dev_get(other_dp);
+
+		if (!br)
 			continue;
 
 		/* Error is returned only if CONFIG_BRIDGE_VLAN_FILTERING,
 		 * which seems pointless to handle, as our port cannot become
 		 * VLAN-aware in that case.
 		 */
-		br_vlan_get_proto(other_dp->bridge_dev, &proto);
+		br_vlan_get_proto(br, &proto);
 
 		return proto;
 	}
@@ -180,7 +182,8 @@ static struct sk_buff *sja1105_imprecise_xmit(struct sk_buff *skb,
 					      struct net_device *netdev)
 {
 	struct dsa_port *dp = dsa_slave_to_port(netdev);
-	struct net_device *br = dp->bridge_dev;
+	unsigned int bridge_num = dsa_port_bridge_num_get(dp);
+	struct net_device *br = dsa_port_bridge_dev_get(dp);
 	u16 tx_vid;
 
 	/* If the port is under a VLAN-aware bridge, just slide the
@@ -196,7 +199,7 @@ static struct sk_buff *sja1105_imprecise_xmit(struct sk_buff *skb,
 	 * TX VLAN that targets the bridge's entire broadcast domain,
 	 * instead of just the specific port.
 	 */
-	tx_vid = dsa_8021q_bridge_tx_fwd_offload_vid(dp->bridge_num);
+	tx_vid = dsa_8021q_bridge_tx_fwd_offload_vid(bridge_num);
 
 	return dsa_8021q_xmit(skb, netdev, sja1105_xmit_tpid(dp), tx_vid);
 }