Merge branch 'dsa-multi-chip-prep'

Vivien Didelot says:

====================
net: dsa: preparatory patches for multi-chip

In order to introduce support for multi-chip configuration, we need to
do a few enhancements. This patchset makes the number of ports in a
switch dynamic (instead of capping to DSA_MAX_PORTS), stores the switch
and index of a port in the dsa_port structure, uses it in the slave
private structure, and exposes the bridge device a port belongs to.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/dsa/b53/b53_common.c

@@ -1308,7 +1308,7 @@ int b53_fdb_dump(struct dsa_switch *ds, int port,
 }
 EXPORT_SYMBOL(b53_fdb_dump);
 
-int b53_br_join(struct dsa_switch *ds, int port, struct net_device *bridge)
+int b53_br_join(struct dsa_switch *ds, int port, struct net_device *br)
 {
 	struct b53_device *dev = ds->priv;
 	s8 cpu_port = ds->dst->cpu_port;
@@ -1326,11 +1326,10 @@ int b53_br_join(struct dsa_switch *ds, int port, struct net_device *bridge)
 		b53_write16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, reg);
 	}
 
-	dev->ports[port].bridge_dev = bridge;
 	b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), &pvlan);
 
 	b53_for_each_port(dev, i) {
-		if (dev->ports[i].bridge_dev != bridge)
+		if (ds->ports[i].bridge_dev != br)
 			continue;
 
 		/* Add this local port to the remote port VLAN control
@@ -1354,10 +1353,9 @@ int b53_br_join(struct dsa_switch *ds, int port, struct net_device *bridge)
 }
 EXPORT_SYMBOL(b53_br_join);
 
-void b53_br_leave(struct dsa_switch *ds, int port)
+void b53_br_leave(struct dsa_switch *ds, int port, struct net_device *br)
 {
 	struct b53_device *dev = ds->priv;
-	struct net_device *bridge = dev->ports[port].bridge_dev;
 	struct b53_vlan *vl = &dev->vlans[0];
 	s8 cpu_port = ds->dst->cpu_port;
 	unsigned int i;
@@ -1367,7 +1365,7 @@ void b53_br_leave(struct dsa_switch *ds, int port)
 
 	b53_for_each_port(dev, i) {
 		/* Don't touch the remaining ports */
-		if (dev->ports[i].bridge_dev != bridge)
+		if (ds->ports[i].bridge_dev != br)
 			continue;
 
 		b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), &reg);
@@ -1382,7 +1380,6 @@ void b53_br_leave(struct dsa_switch *ds, int port)
 
 	b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), pvlan);
 	dev->ports[port].vlan_ctl_mask = pvlan;
-	dev->ports[port].bridge_dev = NULL;
 
 	if (is5325(dev) || is5365(dev))
 		pvid = 1;
@@ -1790,14 +1787,15 @@ struct b53_device *b53_switch_alloc(struct device *base,
 	struct dsa_switch *ds;
 	struct b53_device *dev;
 
-	ds = devm_kzalloc(base, sizeof(*ds) + sizeof(*dev), GFP_KERNEL);
+	ds = dsa_switch_alloc(base, DSA_MAX_PORTS);
 	if (!ds)
 		return NULL;
 
-	dev = (struct b53_device *)(ds + 1);
+	dev = devm_kzalloc(base, sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return NULL;
 
 	ds->priv = dev;
-	ds->dev = base;
 	dev->dev = base;
 
 	dev->ds = ds;

drivers/net/dsa/b53/b53_priv.h

@@ -70,7 +70,6 @@ enum {
 
 struct b53_port {
 	u16		vlan_ctl_mask;
-	struct net_device *bridge_dev;
 };
 
 struct b53_vlan {
@@ -382,7 +381,7 @@ void b53_get_strings(struct dsa_switch *ds, int port, uint8_t *data);
 void b53_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *data);
 int b53_get_sset_count(struct dsa_switch *ds);
 int b53_br_join(struct dsa_switch *ds, int port, struct net_device *bridge);
-void b53_br_leave(struct dsa_switch *ds, int port);
+void b53_br_leave(struct dsa_switch *ds, int port, struct net_device *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_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering);

drivers/net/dsa/mv88e6xxx/chip.c

@@ -1247,8 +1247,8 @@ static int _mv88e6xxx_atu_remove(struct mv88e6xxx_chip *chip, u16 fid,
 
 static int _mv88e6xxx_port_based_vlan_map(struct mv88e6xxx_chip *chip, int port)
 {
-	struct net_device *bridge = chip->ports[port].bridge_dev;
 	struct dsa_switch *ds = chip->ds;
+	struct net_device *bridge = ds->ports[port].bridge_dev;
 	u16 output_ports = 0;
 	int i;
 
@@ -1258,7 +1258,7 @@ static int _mv88e6xxx_port_based_vlan_map(struct mv88e6xxx_chip *chip, int port)
 	} else {
 		for (i = 0; i < mv88e6xxx_num_ports(chip); ++i) {
 			/* allow sending frames to every group member */
-			if (bridge && chip->ports[i].bridge_dev == bridge)
+			if (bridge && ds->ports[i].bridge_dev == bridge)
 				output_ports |= BIT(i);
 
 			/* allow sending frames to CPU port and DSA link(s) */
@@ -1820,17 +1820,17 @@ static int mv88e6xxx_port_check_hw_vlan(struct dsa_switch *ds, int port,
 			    GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER)
 				continue;
 
-			if (chip->ports[i].bridge_dev ==
-			    chip->ports[port].bridge_dev)
+			if (ds->ports[i].bridge_dev ==
+			    ds->ports[port].bridge_dev)
 				break; /* same bridge, check next VLAN */
 
-			if (!chip->ports[i].bridge_dev)
+			if (!ds->ports[i].bridge_dev)
 				continue;
 
 			netdev_warn(ds->ports[port].netdev,
 				    "hardware VLAN %d already used by %s\n",
 				    vlan.vid,
-				    netdev_name(chip->ports[i].bridge_dev));
+				    netdev_name(ds->ports[i].bridge_dev));
 			err = -EOPNOTSUPP;
 			goto unlock;
 		}
@@ -2320,18 +2320,16 @@ static int mv88e6xxx_port_fdb_dump(struct dsa_switch *ds, int port,
 }
 
 static int mv88e6xxx_port_bridge_join(struct dsa_switch *ds, int port,
-				      struct net_device *bridge)
+				      struct net_device *br)
 {
 	struct mv88e6xxx_chip *chip = ds->priv;
 	int i, err = 0;
 
 	mutex_lock(&chip->reg_lock);
 
-	/* Assign the bridge and remap each port's VLANTable */
-	chip->ports[port].bridge_dev = bridge;
-
+	/* Remap each port's VLANTable */
 	for (i = 0; i < mv88e6xxx_num_ports(chip); ++i) {
-		if (chip->ports[i].bridge_dev == bridge) {
+		if (ds->ports[i].bridge_dev == br) {
 			err = _mv88e6xxx_port_based_vlan_map(chip, i);
 			if (err)
 				break;
@@ -2343,19 +2341,17 @@ static int mv88e6xxx_port_bridge_join(struct dsa_switch *ds, int port,
 	return err;
 }
 
-static void mv88e6xxx_port_bridge_leave(struct dsa_switch *ds, int port)
+static void mv88e6xxx_port_bridge_leave(struct dsa_switch *ds, int port,
+					struct net_device *br)
 {
 	struct mv88e6xxx_chip *chip = ds->priv;
-	struct net_device *bridge = chip->ports[port].bridge_dev;
 	int i;
 
 	mutex_lock(&chip->reg_lock);
 
-	/* Unassign the bridge and remap each port's VLANTable */
-	chip->ports[port].bridge_dev = NULL;
-
+	/* Remap each port's VLANTable */
 	for (i = 0; i < mv88e6xxx_num_ports(chip); ++i)
-		if (i == port || chip->ports[i].bridge_dev == bridge)
+		if (i == port || ds->ports[i].bridge_dev == br)
 			if (_mv88e6xxx_port_based_vlan_map(chip, i))
 				netdev_warn(ds->ports[i].netdev,
 					    "failed to remap\n");
@@ -4361,11 +4357,10 @@ static int mv88e6xxx_register_switch(struct mv88e6xxx_chip *chip)
 	struct device *dev = chip->dev;
 	struct dsa_switch *ds;
 
-	ds = devm_kzalloc(dev, sizeof(*ds), GFP_KERNEL);
+	ds = dsa_switch_alloc(dev, DSA_MAX_PORTS);
 	if (!ds)
 		return -ENOMEM;
 
-	ds->dev = dev;
 	ds->priv = chip;
 	ds->ops = &mv88e6xxx_switch_ops;
 

drivers/net/dsa/mv88e6xxx/mv88e6xxx.h

@@ -676,10 +676,6 @@ struct mv88e6xxx_vtu_entry {
 
 struct mv88e6xxx_bus_ops;
 
-struct mv88e6xxx_priv_port {
-	struct net_device *bridge_dev;
-};
-
 struct mv88e6xxx_irq {
 	u16 masked;
 	struct irq_chip chip;
@@ -720,8 +716,6 @@ struct mv88e6xxx_chip {
 	 */
 	struct mutex	stats_mutex;
 
-	struct mv88e6xxx_priv_port	ports[DSA_MAX_PORTS];
-
 	/* A switch may have a GPIO line tied to its reset pin. Parse
 	 * this from the device tree, and use it before performing
 	 * switch soft reset.

drivers/net/dsa/qca8k.c

@@ -746,17 +746,14 @@ qca8k_port_stp_state_set(struct dsa_switch *ds, int port, u8 state)
 }
 
 static int
-qca8k_port_bridge_join(struct dsa_switch *ds, int port,
-		       struct net_device *bridge)
+qca8k_port_bridge_join(struct dsa_switch *ds, int port, struct net_device *br)
 {
 	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
 	int port_mask = BIT(QCA8K_CPU_PORT);
 	int i;
 
-	priv->port_sts[port].bridge_dev = bridge;
-
 	for (i = 1; i < QCA8K_NUM_PORTS; i++) {
-		if (priv->port_sts[i].bridge_dev != bridge)
+		if (ds->ports[i].bridge_dev != br)
 			continue;
 		/* Add this port to the portvlan mask of the other ports
 		 * in the bridge
@@ -775,14 +772,13 @@ qca8k_port_bridge_join(struct dsa_switch *ds, int port,
 }
 
 static void
-qca8k_port_bridge_leave(struct dsa_switch *ds, int port)
+qca8k_port_bridge_leave(struct dsa_switch *ds, int port, struct net_device *br)
 {
 	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
 	int i;
 
 	for (i = 1; i < QCA8K_NUM_PORTS; i++) {
-		if (priv->port_sts[i].bridge_dev !=
-		    priv->port_sts[port].bridge_dev)
+		if (ds->ports[i].bridge_dev != br)
 			continue;
 		/* Remove this port to the portvlan mask of the other ports
 		 * in the bridge
@@ -791,7 +787,7 @@ qca8k_port_bridge_leave(struct dsa_switch *ds, int port)
 				QCA8K_PORT_LOOKUP_CTRL(i),
 				BIT(port));
 	}
-	priv->port_sts[port].bridge_dev = NULL;
+
 	/* Set the cpu port to be the only one in the portvlan mask of
 	 * this port
 	 */
@@ -954,12 +950,11 @@ qca8k_sw_probe(struct mdio_device *mdiodev)
 	if (id != QCA8K_ID_QCA8337)
 		return -ENODEV;
 
-	priv->ds = devm_kzalloc(&mdiodev->dev, sizeof(*priv->ds), GFP_KERNEL);
+	priv->ds = dsa_switch_alloc(&mdiodev->dev, DSA_MAX_PORTS);
 	if (!priv->ds)
 		return -ENOMEM;
 
 	priv->ds->priv = priv;
-	priv->ds->dev = &mdiodev->dev;
 	priv->ds->ops = &qca8k_switch_ops;
 	mutex_init(&priv->reg_mutex);
 	dev_set_drvdata(&mdiodev->dev, priv);

drivers/net/dsa/qca8k.h

@@ -157,7 +157,6 @@ enum qca8k_fdb_cmd {
 
 struct ar8xxx_port_status {
 	struct ethtool_eee eee;
-	struct net_device *bridge_dev;
 	int enabled;
 };
 

include/net/dsa.h

@@ -140,10 +140,13 @@ struct dsa_switch_tree {
 };
 
 struct dsa_port {
+	struct dsa_switch	*ds;
+	unsigned int		index;
 	struct net_device	*netdev;
 	struct device_node	*dn;
 	unsigned int		ageing_time;
 	u8			stp_state;
+	struct net_device	*bridge_dev;
 };
 
 struct dsa_switch {
@@ -190,8 +193,11 @@ struct dsa_switch {
 	u32			cpu_port_mask;
 	u32			enabled_port_mask;
 	u32			phys_mii_mask;
-	struct dsa_port		ports[DSA_MAX_PORTS];
 	struct mii_bus		*slave_mii_bus;
+
+	/* Dynamically allocated ports, keep last */
+	size_t num_ports;
+	struct dsa_port ports[];
 };
 
 static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p)
@@ -319,7 +325,8 @@ 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);
-	void	(*port_bridge_leave)(struct dsa_switch *ds, int port);
+	void	(*port_bridge_leave)(struct dsa_switch *ds, int port,
+				     struct net_device *bridge);
 	void	(*port_stp_state_set)(struct dsa_switch *ds, int port,
 				      u8 state);
 	void	(*port_fast_age)(struct dsa_switch *ds, int port);
@@ -386,6 +393,7 @@ static inline bool dsa_uses_tagged_protocol(struct dsa_switch_tree *dst)
 	return dst->rcv != NULL;
 }
 
+struct dsa_switch *dsa_switch_alloc(struct device *dev, size_t n);
 void dsa_unregister_switch(struct dsa_switch *ds);
 int dsa_register_switch(struct dsa_switch *ds, struct device *dev);
 #ifdef CONFIG_PM_SLEEP

net/dsa/dsa.c

@@ -145,7 +145,7 @@ static int dsa_cpu_dsa_setups(struct dsa_switch *ds, struct device *dev)
 	struct dsa_port *dport;
 	int ret, port;
 
-	for (port = 0; port < DSA_MAX_PORTS; port++) {
+	for (port = 0; port < ds->num_ports; port++) {
 		if (!(dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port)))
 			continue;
 
@@ -218,7 +218,7 @@ static int dsa_switch_setup_one(struct dsa_switch *ds, struct device *parent)
 	/*
 	 * Validate supplied switch configuration.
 	 */
-	for (i = 0; i < DSA_MAX_PORTS; i++) {
+	for (i = 0; i < ds->num_ports; i++) {
 		char *name;
 
 		name = cd->port_names[i];
@@ -242,7 +242,7 @@ static int dsa_switch_setup_one(struct dsa_switch *ds, struct device *parent)
 		valid_name_found = true;
 	}
 
-	if (!valid_name_found && i == DSA_MAX_PORTS)
+	if (!valid_name_found && i == ds->num_ports)
 		return -EINVAL;
 
 	/* Make the built-in MII bus mask match the number of ports,
@@ -295,7 +295,7 @@ static int dsa_switch_setup_one(struct dsa_switch *ds, struct device *parent)
 	/*
 	 * Create network devices for physical switch ports.
 	 */
-	for (i = 0; i < DSA_MAX_PORTS; i++) {
+	for (i = 0; i < ds->num_ports; i++) {
 		ds->ports[i].dn = cd->port_dn[i];
 
 		if (!(ds->enabled_port_mask & (1 << i)))
@@ -347,8 +347,8 @@ dsa_switch_setup(struct dsa_switch_tree *dst, int index,
 	/*
 	 * Allocate and initialise switch state.
 	 */
-	ds = devm_kzalloc(parent, sizeof(*ds), GFP_KERNEL);
-	if (ds == NULL)
+	ds = dsa_switch_alloc(parent, DSA_MAX_PORTS);
+	if (!ds)
 		return ERR_PTR(-ENOMEM);
 
 	ds->dst = dst;
@@ -356,7 +356,6 @@ dsa_switch_setup(struct dsa_switch_tree *dst, int index,
 	ds->cd = cd;
 	ds->ops = ops;
 	ds->priv = priv;
-	ds->dev = parent;
 
 	ret = dsa_switch_setup_one(ds, parent);
 	if (ret)
@@ -378,7 +377,7 @@ static void dsa_switch_destroy(struct dsa_switch *ds)
 	int port;
 
 	/* Destroy network devices for physical switch ports. */
-	for (port = 0; port < DSA_MAX_PORTS; port++) {
+	for (port = 0; port < ds->num_ports; port++) {
 		if (!(ds->enabled_port_mask & (1 << port)))
 			continue;
 
@@ -389,7 +388,7 @@ static void dsa_switch_destroy(struct dsa_switch *ds)
 	}
 
 	/* Disable configuration of the CPU and DSA ports */
-	for (port = 0; port < DSA_MAX_PORTS; port++) {
+	for (port = 0; port < ds->num_ports; port++) {
 		if (!(dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port)))
 			continue;
 		dsa_cpu_dsa_destroy(&ds->ports[port]);
@@ -409,7 +408,7 @@ int dsa_switch_suspend(struct dsa_switch *ds)
 	int i, ret = 0;
 
 	/* Suspend slave network devices */
-	for (i = 0; i < DSA_MAX_PORTS; i++) {
+	for (i = 0; i < ds->num_ports; i++) {
 		if (!dsa_is_port_initialized(ds, i))
 			continue;
 
@@ -436,7 +435,7 @@ int dsa_switch_resume(struct dsa_switch *ds)
 		return ret;
 
 	/* Resume slave network devices */
-	for (i = 0; i < DSA_MAX_PORTS; i++) {
+	for (i = 0; i < ds->num_ports; i++) {
 		if (!dsa_is_port_initialized(ds, i))
 			continue;
 

net/dsa/dsa2.c

@@ -98,7 +98,7 @@ static bool dsa_ds_find_port_dn(struct dsa_switch *ds,
 {
 	u32 index;
 
-	for (index = 0; index < DSA_MAX_PORTS; index++)
+	for (index = 0; index < ds->num_ports; index++)
 		if (ds->ports[index].dn == port)
 			return true;
 	return false;
@@ -159,7 +159,7 @@ static int dsa_ds_complete(struct dsa_switch_tree *dst, struct dsa_switch *ds)
 	u32 index;
 	int err;
 
-	for (index = 0; index < DSA_MAX_PORTS; index++) {
+	for (index = 0; index < ds->num_ports; index++) {
 		port = &ds->ports[index];
 		if (!dsa_port_is_valid(port))
 			continue;
@@ -312,7 +312,7 @@ static int dsa_ds_apply(struct dsa_switch_tree *dst, struct dsa_switch *ds)
 			return err;
 	}
 
-	for (index = 0; index < DSA_MAX_PORTS; index++) {
+	for (index = 0; index < ds->num_ports; index++) {
 		port = &ds->ports[index];
 		if (!dsa_port_is_valid(port))
 			continue;
@@ -344,7 +344,7 @@ static void dsa_ds_unapply(struct dsa_switch_tree *dst, struct dsa_switch *ds)
 	struct dsa_port *port;
 	u32 index;
 
-	for (index = 0; index < DSA_MAX_PORTS; index++) {
+	for (index = 0; index < ds->num_ports; index++) {
 		port = &ds->ports[index];
 		if (!dsa_port_is_valid(port))
 			continue;
@@ -475,7 +475,7 @@ static int dsa_ds_parse(struct dsa_switch_tree *dst, struct dsa_switch *ds)
 	u32 index;
 	int err;
 
-	for (index = 0; index < DSA_MAX_PORTS; index++) {
+	for (index = 0; index < ds->num_ports; index++) {
 		port = &ds->ports[index];
 		if (!dsa_port_is_valid(port))
 			continue;
@@ -529,7 +529,7 @@ static int dsa_parse_ports_dn(struct device_node *ports, struct dsa_switch *ds)
 		if (err)
 			return err;
 
-		if (reg >= DSA_MAX_PORTS)
+		if (reg >= ds->num_ports)
 			return -EINVAL;
 
 		ds->ports[reg].dn = port;
@@ -666,6 +666,28 @@ static int _dsa_register_switch(struct dsa_switch *ds, struct device *dev)
 	return err;
 }
 
+struct dsa_switch *dsa_switch_alloc(struct device *dev, size_t n)
+{
+	size_t size = sizeof(struct dsa_switch) + n * sizeof(struct dsa_port);
+	struct dsa_switch *ds;
+	int i;
+
+	ds = devm_kzalloc(dev, size, GFP_KERNEL);
+	if (!ds)
+		return NULL;
+
+	ds->dev = dev;
+	ds->num_ports = n;
+
+	for (i = 0; i < ds->num_ports; ++i) {
+		ds->ports[i].index = i;
+		ds->ports[i].ds = ds;
+	}
+
+	return ds;
+}
+EXPORT_SYMBOL_GPL(dsa_switch_alloc);
+
 int dsa_register_switch(struct dsa_switch *ds, struct device *dev)
 {
 	int err;

net/dsa/dsa_priv.h

@@ -25,12 +25,8 @@ struct dsa_slave_priv {
 	struct sk_buff *	(*xmit)(struct sk_buff *skb,
 					struct net_device *dev);
 
-	/*
-	 * Which switch this port is a part of, and the port index
-	 * for this port.
-	 */
-	struct dsa_switch	*parent;
-	u8			port;
+	/* DSA port data, such as switch, port index, etc. */
+	struct dsa_port		*dp;
 
 	/*
 	 * The phylib phy_device pointer for the PHY connected
@@ -42,7 +38,6 @@ struct dsa_slave_priv {
 	int			old_pause;
 	int			old_duplex;
 
-	struct net_device	*bridge_dev;
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	struct netpoll		*netpoll;
 #endif

net/dsa/tag_brcm.c

@@ -80,9 +80,9 @@ static struct sk_buff *brcm_tag_xmit(struct sk_buff *skb, struct net_device *dev
 			((skb->priority << BRCM_IG_TC_SHIFT) & BRCM_IG_TC_MASK);
 	brcm_tag[1] = 0;
 	brcm_tag[2] = 0;
-	if (p->port == 8)
+	if (p->dp->index == 8)
 		brcm_tag[2] = BRCM_IG_DSTMAP2_MASK;
-	brcm_tag[3] = (1 << p->port) & BRCM_IG_DSTMAP1_MASK;
+	brcm_tag[3] = (1 << p->dp->index) & BRCM_IG_DSTMAP1_MASK;
 
 	return skb;
 
@@ -128,7 +128,7 @@ static int brcm_tag_rcv(struct sk_buff *skb, struct net_device *dev,
 	source_port = brcm_tag[3] & BRCM_EG_PID_MASK;
 
 	/* Validate port against switch setup, either the port is totally */
-	if (source_port >= DSA_MAX_PORTS || !ds->ports[source_port].netdev)
+	if (source_port >= ds->num_ports || !ds->ports[source_port].netdev)
 		goto out_drop;
 
 	/* Remove Broadcom tag and update checksum */

net/dsa/tag_dsa.c

@@ -33,8 +33,8 @@ static struct sk_buff *dsa_xmit(struct sk_buff *skb, struct net_device *dev)
 		 * Construct tagged FROM_CPU DSA tag from 802.1q tag.
 		 */
 		dsa_header = skb->data + 2 * ETH_ALEN;
-		dsa_header[0] = 0x60 | p->parent->index;
-		dsa_header[1] = p->port << 3;
+		dsa_header[0] = 0x60 | p->dp->ds->index;
+		dsa_header[1] = p->dp->index << 3;
 
 		/*
 		 * Move CFI field from byte 2 to byte 1.
@@ -54,8 +54,8 @@ static struct sk_buff *dsa_xmit(struct sk_buff *skb, struct net_device *dev)
 		 * Construct untagged FROM_CPU DSA tag.
 		 */
 		dsa_header = skb->data + 2 * ETH_ALEN;
-		dsa_header[0] = 0x40 | p->parent->index;
-		dsa_header[1] = p->port << 3;
+		dsa_header[0] = 0x40 | p->dp->ds->index;
+		dsa_header[1] = p->dp->index << 3;
 		dsa_header[2] = 0x00;
 		dsa_header[3] = 0x00;
 	}
@@ -114,7 +114,7 @@ static int dsa_rcv(struct sk_buff *skb, struct net_device *dev,
 	if (!ds)
 		goto out_drop;
 
-	if (source_port >= DSA_MAX_PORTS || !ds->ports[source_port].netdev)
+	if (source_port >= ds->num_ports || !ds->ports[source_port].netdev)
 		goto out_drop;
 
 	/*

net/dsa/tag_edsa.c

@@ -42,8 +42,8 @@ static struct sk_buff *edsa_xmit(struct sk_buff *skb, struct net_device *dev)
 		edsa_header[1] = ETH_P_EDSA & 0xff;
 		edsa_header[2] = 0x00;
 		edsa_header[3] = 0x00;
-		edsa_header[4] = 0x60 | p->parent->index;
-		edsa_header[5] = p->port << 3;
+		edsa_header[4] = 0x60 | p->dp->ds->index;
+		edsa_header[5] = p->dp->index << 3;
 
 		/*
 		 * Move CFI field from byte 6 to byte 5.
@@ -67,8 +67,8 @@ static struct sk_buff *edsa_xmit(struct sk_buff *skb, struct net_device *dev)
 		edsa_header[1] = ETH_P_EDSA & 0xff;
 		edsa_header[2] = 0x00;
 		edsa_header[3] = 0x00;
-		edsa_header[4] = 0x40 | p->parent->index;
-		edsa_header[5] = p->port << 3;
+		edsa_header[4] = 0x40 | p->dp->ds->index;
+		edsa_header[5] = p->dp->index << 3;
 		edsa_header[6] = 0x00;
 		edsa_header[7] = 0x00;
 	}
@@ -127,7 +127,7 @@ static int edsa_rcv(struct sk_buff *skb, struct net_device *dev,
 	if (!ds)
 		goto out_drop;
 
-	if (source_port >= DSA_MAX_PORTS || !ds->ports[source_port].netdev)
+	if (source_port >= ds->num_ports || !ds->ports[source_port].netdev)
 		goto out_drop;
 
 	/*

net/dsa/tag_qca.c

@@ -54,7 +54,7 @@ static struct sk_buff *qca_tag_xmit(struct sk_buff *skb, struct net_device *dev)
 	/* Set the version field, and set destination port information */
 	hdr = QCA_HDR_VERSION << QCA_HDR_XMIT_VERSION_S |
 		QCA_HDR_XMIT_FROM_CPU |
-		BIT(p->port);
+		BIT(p->dp->index);
 
 	*phdr = htons(hdr);
 

net/dsa/tag_trailer.c

@@ -50,7 +50,7 @@ static struct sk_buff *trailer_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	trailer = skb_put(nskb, 4);
 	trailer[0] = 0x80;
-	trailer[1] = 1 << p->port;
+	trailer[1] = 1 << p->dp->index;
 	trailer[2] = 0x10;
 	trailer[3] = 0x00;
 
@@ -82,7 +82,7 @@ static int trailer_rcv(struct sk_buff *skb, struct net_device *dev,
 		goto out_drop;
 
 	source_port = trailer[1] & 7;
-	if (source_port >= DSA_MAX_PORTS || !ds->ports[source_port].netdev)
+	if (source_port >= ds->num_ports || !ds->ports[source_port].netdev)
 		goto out_drop;
 
 	pskb_trim_rcsum(skb, skb->len - 4);