5 files changed, 100 insertions, 80 deletions

diff --git a/drivers/net/dsa/qca/ar9331.c b/drivers/net/dsa/qca/ar9331.c
index 968cb81088bf..e9f2c67bc15f 100644
--- a/drivers/net/dsa/qca/ar9331.c
+++ b/drivers/net/dsa/qca/ar9331.c
@@ -1021,7 +1021,7 @@ static const struct regmap_config ar9331_mdio_regmap_config = {
 	.cache_type = REGCACHE_MAPLE,
 };
 
-static struct regmap_bus ar9331_sw_bus = {
+static const struct regmap_bus ar9331_sw_bus = {
 	.reg_format_endian_default = REGMAP_ENDIAN_NATIVE,
 	.val_format_endian_default = REGMAP_ENDIAN_NATIVE,
 	.read = ar9331_mdio_read,
diff --git a/drivers/net/dsa/qca/qca8k-8xxx.c b/drivers/net/dsa/qca/qca8k-8xxx.c
index e82b84f6bcd3..e8cb4da15dbe 100644
--- a/drivers/net/dsa/qca/qca8k-8xxx.c
+++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -342,7 +342,7 @@ static int qca8k_read_eth(struct qca8k_priv *priv, u32 reg, u32 *val, int len)
 	dev_queue_xmit(skb);
 
 	ret = wait_for_completion_timeout(&mgmt_eth_data->rw_done,
-					  msecs_to_jiffies(QCA8K_ETHERNET_TIMEOUT));
+					  QCA8K_ETHERNET_TIMEOUT);
 
 	*val = mgmt_eth_data->data[0];
 	if (len > QCA_HDR_MGMT_DATA1_LEN)
@@ -394,7 +394,7 @@ static int qca8k_write_eth(struct qca8k_priv *priv, u32 reg, u32 *val, int len)
 	dev_queue_xmit(skb);
 
 	ret = wait_for_completion_timeout(&mgmt_eth_data->rw_done,
-					  msecs_to_jiffies(QCA8K_ETHERNET_TIMEOUT));
+					  QCA8K_ETHERNET_TIMEOUT);
 
 	ack = mgmt_eth_data->ack;
 
@@ -565,7 +565,7 @@ qca8k_regmap_update_bits(void *ctx, uint32_t reg, uint32_t mask, uint32_t write_
 	return qca8k_regmap_update_bits_mii(priv, reg, mask, write_val);
 }
 
-static struct regmap_config qca8k_regmap_config = {
+static const struct regmap_config qca8k_regmap_config = {
 	.reg_bits = 16,
 	.val_bits = 32,
 	.reg_stride = 4,
@@ -673,7 +673,7 @@ qca8k_phy_eth_command(struct qca8k_priv *priv, bool read, int phy,
 	 * We therefore need to lock the MDIO bus onto which the switch is
 	 * connected.
 	 */
-	mutex_lock(&priv->bus->mdio_lock);
+	mutex_lock_nested(&priv->bus->mdio_lock, MDIO_MUTEX_NESTED);
 
 	/* Actually start the request:
 	 * 1. Send mdio master packet
@@ -950,15 +950,15 @@ qca8k_mdio_register(struct qca8k_priv *priv)
 	struct device *dev = ds->dev;
 	struct device_node *mdio;
 	struct mii_bus *bus;
-	int err = 0;
+	int ret = 0;
 
 	mdio = of_get_child_by_name(dev->of_node, "mdio");
 	if (mdio && !of_device_is_available(mdio))
-		goto out;
+		goto out_put_node;
 
 	bus = devm_mdiobus_alloc(dev);
 	if (!bus) {
-		err = -ENOMEM;
+		ret = -ENOMEM;
 		goto out_put_node;
 	}
 
@@ -984,12 +984,11 @@ qca8k_mdio_register(struct qca8k_priv *priv)
 		bus->write = qca8k_legacy_mdio_write;
 	}
 
-	err = devm_of_mdiobus_register(dev, bus, mdio);
+	ret = devm_of_mdiobus_register(dev, bus, mdio);
 
 out_put_node:
 	of_node_put(mdio);
-out:
-	return err;
+	return ret;
 }
 
 static int
@@ -998,7 +997,7 @@ qca8k_setup_mdio_bus(struct qca8k_priv *priv)
 	u32 internal_mdio_mask = 0, external_mdio_mask = 0, reg;
 	struct device_node *ports, *port;
 	phy_interface_t mode;
-	int err;
+	int ret;
 
 	ports = of_get_child_by_name(priv->dev->of_node, "ports");
 	if (!ports)
@@ -1008,11 +1007,11 @@ qca8k_setup_mdio_bus(struct qca8k_priv *priv)
 		return -EINVAL;
 
 	for_each_available_child_of_node(ports, port) {
-		err = of_property_read_u32(port, "reg", &reg);
-		if (err) {
+		ret = of_property_read_u32(port, "reg", &reg);
+		if (ret) {
 			of_node_put(port);
 			of_node_put(ports);
-			return err;
+			return ret;
 		}
 
 		if (!dsa_is_user_port(priv->ds, reg))
@@ -1020,7 +1019,7 @@ qca8k_setup_mdio_bus(struct qca8k_priv *priv)
 
 		of_get_phy_mode(port, &mode);
 
-		if (of_property_read_bool(port, "phy-handle") &&
+		if (of_property_present(port, "phy-handle") &&
 		    mode != PHY_INTERFACE_MODE_INTERNAL)
 			external_mdio_mask |= BIT(reg);
 		else
@@ -1492,7 +1491,7 @@ static struct qca8k_pcs *pcs_to_qca8k_pcs(struct phylink_pcs *pcs)
 	return container_of(pcs, struct qca8k_pcs, pcs);
 }
 
-static void qca8k_pcs_get_state(struct phylink_pcs *pcs,
+static void qca8k_pcs_get_state(struct phylink_pcs *pcs, unsigned int neg_mode,
 				struct phylink_link_state *state)
 {
 	struct qca8k_priv *priv = pcs_to_qca8k_pcs(pcs)->priv;
@@ -2017,7 +2016,7 @@ static const struct dsa_switch_ops qca8k_switch_ops = {
 	.get_ethtool_stats	= qca8k_get_ethtool_stats,
 	.get_sset_count		= qca8k_get_sset_count,
 	.set_ageing_time	= qca8k_set_ageing_time,
-	.get_mac_eee		= qca8k_get_mac_eee,
+	.support_eee		= dsa_supports_eee,
 	.set_mac_eee		= qca8k_set_mac_eee,
 	.port_enable		= qca8k_port_enable,
 	.port_disable		= qca8k_port_disable,
diff --git a/drivers/net/dsa/qca/qca8k-common.c b/drivers/net/dsa/qca/qca8k-common.c
index 2358cd399c7e..13005f10edb7 100644
--- a/drivers/net/dsa/qca/qca8k-common.c
+++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -534,7 +534,7 @@ int qca8k_get_sset_count(struct dsa_switch *ds, int port, int sset)
 }
 
 int qca8k_set_mac_eee(struct dsa_switch *ds, int port,
-		      struct ethtool_eee *eee)
+		      struct ethtool_keee *eee)
 {
 	u32 lpi_en = QCA8K_REG_EEE_CTRL_LPI_EN(port);
 	struct qca8k_priv *priv = ds->priv;
@@ -557,13 +557,6 @@ exit:
 	return ret;
 }
 
-int qca8k_get_mac_eee(struct dsa_switch *ds, int port,
-		      struct ethtool_eee *e)
-{
-	/* Nothing to do on the port's MAC */
-	return 0;
-}
-
 static int qca8k_port_configure_learning(struct dsa_switch *ds, int port,
 					 bool learning)
 {
@@ -614,11 +607,57 @@ void qca8k_port_stp_state_set(struct dsa_switch *ds, int port, u8 state)
 	qca8k_port_configure_learning(ds, port, learning);
 }
 
+static int qca8k_update_port_member(struct qca8k_priv *priv, int port,
+				    const struct net_device *bridge_dev,
+				    bool join)
+{
+	bool isolated = !!(priv->port_isolated_map & BIT(port)), other_isolated;
+	struct dsa_port *dp = dsa_to_port(priv->ds, port), *other_dp;
+	u32 port_mask = BIT(dp->cpu_dp->index);
+	int i, ret;
+
+	for (i = 0; i < QCA8K_NUM_PORTS; i++) {
+		if (i == port)
+			continue;
+		if (dsa_is_cpu_port(priv->ds, i))
+			continue;
+
+		other_dp = dsa_to_port(priv->ds, i);
+		if (!dsa_port_offloads_bridge_dev(other_dp, bridge_dev))
+			continue;
+
+		other_isolated = !!(priv->port_isolated_map & BIT(i));
+
+		/* Add/remove this port to/from the portvlan mask of the other
+		 * ports in the bridge
+		 */
+		if (join && !(isolated && other_isolated)) {
+			port_mask |= BIT(i);
+			ret = regmap_set_bits(priv->regmap,
+					      QCA8K_PORT_LOOKUP_CTRL(i),
+					      BIT(port));
+		} else {
+			ret = regmap_clear_bits(priv->regmap,
+						QCA8K_PORT_LOOKUP_CTRL(i),
+						BIT(port));
+		}
+
+		if (ret)
+			return ret;
+	}
+
+	/* Add/remove all other ports to/from this port's portvlan mask */
+	ret = qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
+			QCA8K_PORT_LOOKUP_MEMBER, port_mask);
+
+	return ret;
+}
+
 int qca8k_port_pre_bridge_flags(struct dsa_switch *ds, int port,
 				struct switchdev_brport_flags flags,
 				struct netlink_ext_ack *extack)
 {
-	if (flags.mask & ~BR_LEARNING)
+	if (flags.mask & ~(BR_LEARNING | BR_ISOLATED))
 		return -EINVAL;
 
 	return 0;
@@ -628,6 +667,7 @@ int qca8k_port_bridge_flags(struct dsa_switch *ds, int port,
 			    struct switchdev_brport_flags flags,
 			    struct netlink_ext_ack *extack)
 {
+	struct qca8k_priv *priv = ds->priv;
 	int ret;
 
 	if (flags.mask & BR_LEARNING) {
@@ -637,6 +677,20 @@ int qca8k_port_bridge_flags(struct dsa_switch *ds, int port,
 			return ret;
 	}
 
+	if (flags.mask & BR_ISOLATED) {
+		struct dsa_port *dp = dsa_to_port(ds, port);
+		struct net_device *bridge_dev = dsa_port_bridge_dev_get(dp);
+
+		if (flags.val & BR_ISOLATED)
+			priv->port_isolated_map |= BIT(port);
+		else
+			priv->port_isolated_map &= ~BIT(port);
+
+		ret = qca8k_update_port_member(priv, port, bridge_dev, true);
+		if (ret)
+			return ret;
+	}
+
 	return 0;
 }
 
@@ -646,62 +700,21 @@ int qca8k_port_bridge_join(struct dsa_switch *ds, int port,
 			   struct netlink_ext_ack *extack)
 {
 	struct qca8k_priv *priv = ds->priv;
-	int port_mask, cpu_port;
-	int i, ret;
-
-	cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
-	port_mask = BIT(cpu_port);
-
-	for (i = 0; i < QCA8K_NUM_PORTS; i++) {
-		if (dsa_is_cpu_port(ds, i))
-			continue;
-		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
-		 */
-		ret = regmap_set_bits(priv->regmap,
-				      QCA8K_PORT_LOOKUP_CTRL(i),
-				      BIT(port));
-		if (ret)
-			return ret;
-		if (i != port)
-			port_mask |= BIT(i);
-	}
-
-	/* Add all other ports to this ports portvlan mask */
-	ret = qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
-			QCA8K_PORT_LOOKUP_MEMBER, port_mask);
 
-	return ret;
+	return qca8k_update_port_member(priv, port, bridge.dev, true);
 }
 
 void qca8k_port_bridge_leave(struct dsa_switch *ds, int port,
 			     struct dsa_bridge bridge)
 {
 	struct qca8k_priv *priv = ds->priv;
-	int cpu_port, i;
-
-	cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
+	int err;
 
-	for (i = 0; i < QCA8K_NUM_PORTS; i++) {
-		if (dsa_is_cpu_port(ds, i))
-			continue;
-		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
-		 */
-		regmap_clear_bits(priv->regmap,
-				  QCA8K_PORT_LOOKUP_CTRL(i),
-				  BIT(port));
-	}
-
-	/* Set the cpu port to be the only one in the portvlan mask of
-	 * this port
-	 */
-	qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
-		  QCA8K_PORT_LOOKUP_MEMBER, BIT(cpu_port));
+	err = qca8k_update_port_member(priv, port, bridge.dev, false);
+	if (err)
+		dev_err(priv->dev,
+			"Failed to update switch config for bridge leave: %d\n",
+			err);
 }
 
 void qca8k_port_fast_age(struct dsa_switch *ds, int port)
diff --git a/drivers/net/dsa/qca/qca8k-leds.c b/drivers/net/dsa/qca/qca8k-leds.c
index 811ebeeff4ed..43ac68052baf 100644
--- a/drivers/net/dsa/qca/qca8k-leds.c
+++ b/drivers/net/dsa/qca/qca8k-leds.c
@@ -431,8 +431,11 @@ qca8k_parse_port_leds(struct qca8k_priv *priv, struct fwnode_handle *port, int p
 		init_data.devicename = kasprintf(GFP_KERNEL, "%s:0%d",
 						 priv->internal_mdio_bus->id,
 						 port_num);
-		if (!init_data.devicename)
+		if (!init_data.devicename) {
+			fwnode_handle_put(led);
+			fwnode_handle_put(leds);
 			return -ENOMEM;
+		}
 
 		ret = devm_led_classdev_register_ext(priv->dev, &port_led->cdev, &init_data);
 		if (ret)
@@ -441,6 +444,7 @@ qca8k_parse_port_leds(struct qca8k_priv *priv, struct fwnode_handle *port, int p
 		kfree(init_data.devicename);
 	}
 
+	fwnode_handle_put(leds);
 	return 0;
 }
 
@@ -471,9 +475,13 @@ qca8k_setup_led_ctrl(struct qca8k_priv *priv)
 		 * the correct port for LED setup.
 		 */
 		ret = qca8k_parse_port_leds(priv, port, qca8k_port_to_phy(port_num));
-		if (ret)
+		if (ret) {
+			fwnode_handle_put(port);
+			fwnode_handle_put(ports);
 			return ret;
+		}
 	}
 
+	fwnode_handle_put(ports);
 	return 0;
 }
diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
index c8785c36c54e..d046679265fa 100644
--- a/drivers/net/dsa/qca/qca8k.h
+++ b/drivers/net/dsa/qca/qca8k.h
@@ -16,7 +16,7 @@
 
 #define QCA8K_ETHERNET_MDIO_PRIORITY			7
 #define QCA8K_ETHERNET_PHY_PRIORITY			6
-#define QCA8K_ETHERNET_TIMEOUT				5
+#define QCA8K_ETHERNET_TIMEOUT				msecs_to_jiffies(5)
 
 #define QCA8K_NUM_PORTS					7
 #define QCA8K_NUM_CPU_PORTS				2
@@ -451,6 +451,7 @@ struct qca8k_priv {
 	 * Bit 1: port enabled. Bit 0: port disabled.
 	 */
 	u8 port_enabled_map;
+	u8 port_isolated_map;
 	struct qca8k_ports_config ports_config;
 	struct regmap *regmap;
 	struct mii_bus *bus;
@@ -518,8 +519,7 @@ void qca8k_get_ethtool_stats(struct dsa_switch *ds, int port,
 int qca8k_get_sset_count(struct dsa_switch *ds, int port, int sset);
 
 /* Common eee function */
-int qca8k_set_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *eee);
-int qca8k_get_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e);
+int qca8k_set_mac_eee(struct dsa_switch *ds, int port, struct ethtool_keee *eee);
 
 /* Common bridge function */
 void qca8k_port_stp_state_set(struct dsa_switch *ds, int port, u8 state);