Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1916 insertions, 0 deletions

diff --git a/drivers/net/ethernet/mscc/ocelot_net.c b/drivers/net/ethernet/mscc/ocelot_net.c
new file mode 100644
index 000000000..50858cc10
--- /dev/null
+++ b/drivers/net/ethernet/mscc/ocelot_net.c
@@ -0,0 +1,1916 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/* Microsemi Ocelot Switch driver
+ *
+ * This contains glue logic between the switchdev driver operations and the
+ * mscc_ocelot_switch_lib.
+ *
+ * Copyright (c) 2017, 2019 Microsemi Corporation
+ * Copyright 2020-2021 NXP
+ */
+
+#include <linux/dsa/ocelot.h>
+#include <linux/if_bridge.h>
+#include <linux/of_net.h>
+#include <linux/phy/phy.h>
+#include <net/pkt_cls.h>
+#include "ocelot.h"
+#include "ocelot_police.h"
+#include "ocelot_vcap.h"
+#include "ocelot_fdma.h"
+
+#define OCELOT_MAC_QUIRKS	OCELOT_QUIRK_QSGMII_PORTS_MUST_BE_UP
+
+struct ocelot_dump_ctx {
+	struct net_device *dev;
+	struct sk_buff *skb;
+	struct netlink_callback *cb;
+	int idx;
+};
+
+static bool ocelot_netdevice_dev_check(const struct net_device *dev);
+
+static struct ocelot *devlink_port_to_ocelot(struct devlink_port *dlp)
+{
+	return devlink_priv(dlp->devlink);
+}
+
+static int devlink_port_to_port(struct devlink_port *dlp)
+{
+	struct ocelot *ocelot = devlink_port_to_ocelot(dlp);
+
+	return dlp - ocelot->devlink_ports;
+}
+
+static int ocelot_devlink_sb_pool_get(struct devlink *dl,
+				      unsigned int sb_index, u16 pool_index,
+				      struct devlink_sb_pool_info *pool_info)
+{
+	struct ocelot *ocelot = devlink_priv(dl);
+
+	return ocelot_sb_pool_get(ocelot, sb_index, pool_index, pool_info);
+}
+
+static int ocelot_devlink_sb_pool_set(struct devlink *dl, unsigned int sb_index,
+				      u16 pool_index, u32 size,
+				      enum devlink_sb_threshold_type threshold_type,
+				      struct netlink_ext_ack *extack)
+{
+	struct ocelot *ocelot = devlink_priv(dl);
+
+	return ocelot_sb_pool_set(ocelot, sb_index, pool_index, size,
+				  threshold_type, extack);
+}
+
+static int ocelot_devlink_sb_port_pool_get(struct devlink_port *dlp,
+					   unsigned int sb_index, u16 pool_index,
+					   u32 *p_threshold)
+{
+	struct ocelot *ocelot = devlink_port_to_ocelot(dlp);
+	int port = devlink_port_to_port(dlp);
+
+	return ocelot_sb_port_pool_get(ocelot, port, sb_index, pool_index,
+				       p_threshold);
+}
+
+static int ocelot_devlink_sb_port_pool_set(struct devlink_port *dlp,
+					   unsigned int sb_index, u16 pool_index,
+					   u32 threshold,
+					   struct netlink_ext_ack *extack)
+{
+	struct ocelot *ocelot = devlink_port_to_ocelot(dlp);
+	int port = devlink_port_to_port(dlp);
+
+	return ocelot_sb_port_pool_set(ocelot, port, sb_index, pool_index,
+				       threshold, extack);
+}
+
+static int
+ocelot_devlink_sb_tc_pool_bind_get(struct devlink_port *dlp,
+				   unsigned int sb_index, u16 tc_index,
+				   enum devlink_sb_pool_type pool_type,
+				   u16 *p_pool_index, u32 *p_threshold)
+{
+	struct ocelot *ocelot = devlink_port_to_ocelot(dlp);
+	int port = devlink_port_to_port(dlp);
+
+	return ocelot_sb_tc_pool_bind_get(ocelot, port, sb_index, tc_index,
+					  pool_type, p_pool_index,
+					  p_threshold);
+}
+
+static int
+ocelot_devlink_sb_tc_pool_bind_set(struct devlink_port *dlp,
+				   unsigned int sb_index, u16 tc_index,
+				   enum devlink_sb_pool_type pool_type,
+				   u16 pool_index, u32 threshold,
+				   struct netlink_ext_ack *extack)
+{
+	struct ocelot *ocelot = devlink_port_to_ocelot(dlp);
+	int port = devlink_port_to_port(dlp);
+
+	return ocelot_sb_tc_pool_bind_set(ocelot, port, sb_index, tc_index,
+					  pool_type, pool_index, threshold,
+					  extack);
+}
+
+static int ocelot_devlink_sb_occ_snapshot(struct devlink *dl,
+					  unsigned int sb_index)
+{
+	struct ocelot *ocelot = devlink_priv(dl);
+
+	return ocelot_sb_occ_snapshot(ocelot, sb_index);
+}
+
+static int ocelot_devlink_sb_occ_max_clear(struct devlink *dl,
+					   unsigned int sb_index)
+{
+	struct ocelot *ocelot = devlink_priv(dl);
+
+	return ocelot_sb_occ_max_clear(ocelot, sb_index);
+}
+
+static int ocelot_devlink_sb_occ_port_pool_get(struct devlink_port *dlp,
+					       unsigned int sb_index,
+					       u16 pool_index, u32 *p_cur,
+					       u32 *p_max)
+{
+	struct ocelot *ocelot = devlink_port_to_ocelot(dlp);
+	int port = devlink_port_to_port(dlp);
+
+	return ocelot_sb_occ_port_pool_get(ocelot, port, sb_index, pool_index,
+					   p_cur, p_max);
+}
+
+static int
+ocelot_devlink_sb_occ_tc_port_bind_get(struct devlink_port *dlp,
+				       unsigned int sb_index, u16 tc_index,
+				       enum devlink_sb_pool_type pool_type,
+				       u32 *p_cur, u32 *p_max)
+{
+	struct ocelot *ocelot = devlink_port_to_ocelot(dlp);
+	int port = devlink_port_to_port(dlp);
+
+	return ocelot_sb_occ_tc_port_bind_get(ocelot, port, sb_index,
+					      tc_index, pool_type,
+					      p_cur, p_max);
+}
+
+const struct devlink_ops ocelot_devlink_ops = {
+	.sb_pool_get			= ocelot_devlink_sb_pool_get,
+	.sb_pool_set			= ocelot_devlink_sb_pool_set,
+	.sb_port_pool_get		= ocelot_devlink_sb_port_pool_get,
+	.sb_port_pool_set		= ocelot_devlink_sb_port_pool_set,
+	.sb_tc_pool_bind_get		= ocelot_devlink_sb_tc_pool_bind_get,
+	.sb_tc_pool_bind_set		= ocelot_devlink_sb_tc_pool_bind_set,
+	.sb_occ_snapshot		= ocelot_devlink_sb_occ_snapshot,
+	.sb_occ_max_clear		= ocelot_devlink_sb_occ_max_clear,
+	.sb_occ_port_pool_get		= ocelot_devlink_sb_occ_port_pool_get,
+	.sb_occ_tc_port_bind_get	= ocelot_devlink_sb_occ_tc_port_bind_get,
+};
+
+int ocelot_port_devlink_init(struct ocelot *ocelot, int port,
+			     enum devlink_port_flavour flavour)
+{
+	struct devlink_port *dlp = &ocelot->devlink_ports[port];
+	int id_len = sizeof(ocelot->base_mac);
+	struct devlink *dl = ocelot->devlink;
+	struct devlink_port_attrs attrs = {};
+
+	memset(dlp, 0, sizeof(*dlp));
+	memcpy(attrs.switch_id.id, &ocelot->base_mac, id_len);
+	attrs.switch_id.id_len = id_len;
+	attrs.phys.port_number = port;
+	attrs.flavour = flavour;
+
+	devlink_port_attrs_set(dlp, &attrs);
+
+	return devlink_port_register(dl, dlp, port);
+}
+
+void ocelot_port_devlink_teardown(struct ocelot *ocelot, int port)
+{
+	struct devlink_port *dlp = &ocelot->devlink_ports[port];
+
+	devlink_port_unregister(dlp);
+}
+
+static struct devlink_port *ocelot_get_devlink_port(struct net_device *dev)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot *ocelot = priv->port.ocelot;
+	int port = priv->port.index;
+
+	return &ocelot->devlink_ports[port];
+}
+
+int ocelot_setup_tc_cls_flower(struct ocelot_port_private *priv,
+			       struct flow_cls_offload *f,
+			       bool ingress)
+{
+	struct ocelot *ocelot = priv->port.ocelot;
+	int port = priv->port.index;
+
+	if (!ingress)
+		return -EOPNOTSUPP;
+
+	switch (f->command) {
+	case FLOW_CLS_REPLACE:
+		return ocelot_cls_flower_replace(ocelot, port, f, ingress);
+	case FLOW_CLS_DESTROY:
+		return ocelot_cls_flower_destroy(ocelot, port, f, ingress);
+	case FLOW_CLS_STATS:
+		return ocelot_cls_flower_stats(ocelot, port, f, ingress);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static int ocelot_setup_tc_cls_matchall_police(struct ocelot_port_private *priv,
+					       struct tc_cls_matchall_offload *f,
+					       bool ingress,
+					       struct netlink_ext_ack *extack)
+{
+	struct flow_action_entry *action = &f->rule->action.entries[0];
+	struct ocelot *ocelot = priv->port.ocelot;
+	struct ocelot_policer pol = { 0 };
+	int port = priv->port.index;
+	int err;
+
+	if (!ingress) {
+		NL_SET_ERR_MSG_MOD(extack, "Only ingress is supported");
+		return -EOPNOTSUPP;
+	}
+
+	if (priv->tc.police_id && priv->tc.police_id != f->cookie) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Only one policer per port is supported");
+		return -EEXIST;
+	}
+
+	err = ocelot_policer_validate(&f->rule->action, action, extack);
+	if (err)
+		return err;
+
+	pol.rate = (u32)div_u64(action->police.rate_bytes_ps, 1000) * 8;
+	pol.burst = action->police.burst;
+
+	err = ocelot_port_policer_add(ocelot, port, &pol);
+	if (err) {
+		NL_SET_ERR_MSG_MOD(extack, "Could not add policer");
+		return err;
+	}
+
+	priv->tc.police_id = f->cookie;
+	priv->tc.offload_cnt++;
+
+	return 0;
+}
+
+static int ocelot_setup_tc_cls_matchall_mirred(struct ocelot_port_private *priv,
+					       struct tc_cls_matchall_offload *f,
+					       bool ingress,
+					       struct netlink_ext_ack *extack)
+{
+	struct flow_action *action = &f->rule->action;
+	struct ocelot *ocelot = priv->port.ocelot;
+	struct ocelot_port_private *other_priv;
+	const struct flow_action_entry *a;
+	int err;
+
+	if (f->common.protocol != htons(ETH_P_ALL))
+		return -EOPNOTSUPP;
+
+	if (!flow_action_basic_hw_stats_check(action, extack))
+		return -EOPNOTSUPP;
+
+	a = &action->entries[0];
+	if (!a->dev)
+		return -EINVAL;
+
+	if (!ocelot_netdevice_dev_check(a->dev)) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Destination not an ocelot port");
+		return -EOPNOTSUPP;
+	}
+
+	other_priv = netdev_priv(a->dev);
+
+	err = ocelot_port_mirror_add(ocelot, priv->port.index,
+				     other_priv->port.index, ingress, extack);
+	if (err)
+		return err;
+
+	if (ingress)
+		priv->tc.ingress_mirred_id = f->cookie;
+	else
+		priv->tc.egress_mirred_id = f->cookie;
+	priv->tc.offload_cnt++;
+
+	return 0;
+}
+
+static int ocelot_del_tc_cls_matchall_police(struct ocelot_port_private *priv,
+					     struct netlink_ext_ack *extack)
+{
+	struct ocelot *ocelot = priv->port.ocelot;
+	int port = priv->port.index;
+	int err;
+
+	err = ocelot_port_policer_del(ocelot, port);
+	if (err) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Could not delete policer");
+		return err;
+	}
+
+	priv->tc.police_id = 0;
+	priv->tc.offload_cnt--;
+
+	return 0;
+}
+
+static int ocelot_del_tc_cls_matchall_mirred(struct ocelot_port_private *priv,
+					     bool ingress,
+					     struct netlink_ext_ack *extack)
+{
+	struct ocelot *ocelot = priv->port.ocelot;
+	int port = priv->port.index;
+
+	ocelot_port_mirror_del(ocelot, port, ingress);
+
+	if (ingress)
+		priv->tc.ingress_mirred_id = 0;
+	else
+		priv->tc.egress_mirred_id = 0;
+	priv->tc.offload_cnt--;
+
+	return 0;
+}
+
+static int ocelot_setup_tc_cls_matchall(struct ocelot_port_private *priv,
+					struct tc_cls_matchall_offload *f,
+					bool ingress)
+{
+	struct netlink_ext_ack *extack = f->common.extack;
+	struct flow_action_entry *action;
+
+	switch (f->command) {
+	case TC_CLSMATCHALL_REPLACE:
+		if (!flow_offload_has_one_action(&f->rule->action)) {
+			NL_SET_ERR_MSG_MOD(extack,
+					   "Only one action is supported");
+			return -EOPNOTSUPP;
+		}
+
+		if (priv->tc.block_shared) {
+			NL_SET_ERR_MSG_MOD(extack,
+					   "Matchall offloads not supported on shared blocks");
+			return -EOPNOTSUPP;
+		}
+
+		action = &f->rule->action.entries[0];
+
+		switch (action->id) {
+		case FLOW_ACTION_POLICE:
+			return ocelot_setup_tc_cls_matchall_police(priv, f,
+								   ingress,
+								   extack);
+			break;
+		case FLOW_ACTION_MIRRED:
+			return ocelot_setup_tc_cls_matchall_mirred(priv, f,
+								   ingress,
+								   extack);
+		default:
+			NL_SET_ERR_MSG_MOD(extack, "Unsupported action");
+			return -EOPNOTSUPP;
+		}
+
+		break;
+	case TC_CLSMATCHALL_DESTROY:
+		action = &f->rule->action.entries[0];
+
+		if (f->cookie == priv->tc.police_id)
+			return ocelot_del_tc_cls_matchall_police(priv, extack);
+		else if (f->cookie == priv->tc.ingress_mirred_id ||
+			 f->cookie == priv->tc.egress_mirred_id)
+			return ocelot_del_tc_cls_matchall_mirred(priv, ingress,
+								 extack);
+		else
+			return -ENOENT;
+
+		break;
+	case TC_CLSMATCHALL_STATS:
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static int ocelot_setup_tc_block_cb(enum tc_setup_type type,
+				    void *type_data,
+				    void *cb_priv, bool ingress)
+{
+	struct ocelot_port_private *priv = cb_priv;
+
+	if (!tc_cls_can_offload_and_chain0(priv->dev, type_data))
+		return -EOPNOTSUPP;
+
+	switch (type) {
+	case TC_SETUP_CLSMATCHALL:
+		return ocelot_setup_tc_cls_matchall(priv, type_data, ingress);
+	case TC_SETUP_CLSFLOWER:
+		return ocelot_setup_tc_cls_flower(priv, type_data, ingress);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static int ocelot_setup_tc_block_cb_ig(enum tc_setup_type type,
+				       void *type_data,
+				       void *cb_priv)
+{
+	return ocelot_setup_tc_block_cb(type, type_data,
+					cb_priv, true);
+}
+
+static int ocelot_setup_tc_block_cb_eg(enum tc_setup_type type,
+				       void *type_data,
+				       void *cb_priv)
+{
+	return ocelot_setup_tc_block_cb(type, type_data,
+					cb_priv, false);
+}
+
+static LIST_HEAD(ocelot_block_cb_list);
+
+static int ocelot_setup_tc_block(struct ocelot_port_private *priv,
+				 struct flow_block_offload *f)
+{
+	struct flow_block_cb *block_cb;
+	flow_setup_cb_t *cb;
+
+	if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS) {
+		cb = ocelot_setup_tc_block_cb_ig;
+		priv->tc.block_shared = f->block_shared;
+	} else if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS) {
+		cb = ocelot_setup_tc_block_cb_eg;
+	} else {
+		return -EOPNOTSUPP;
+	}
+
+	f->driver_block_list = &ocelot_block_cb_list;
+
+	switch (f->command) {
+	case FLOW_BLOCK_BIND:
+		if (flow_block_cb_is_busy(cb, priv, &ocelot_block_cb_list))
+			return -EBUSY;
+
+		block_cb = flow_block_cb_alloc(cb, priv, priv, NULL);
+		if (IS_ERR(block_cb))
+			return PTR_ERR(block_cb);
+
+		flow_block_cb_add(block_cb, f);
+		list_add_tail(&block_cb->driver_list, f->driver_block_list);
+		return 0;
+	case FLOW_BLOCK_UNBIND:
+		block_cb = flow_block_cb_lookup(f->block, cb, priv);
+		if (!block_cb)
+			return -ENOENT;
+
+		flow_block_cb_remove(block_cb, f);
+		list_del(&block_cb->driver_list);
+		return 0;
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static int ocelot_setup_tc(struct net_device *dev, enum tc_setup_type type,
+			   void *type_data)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+
+	switch (type) {
+	case TC_SETUP_BLOCK:
+		return ocelot_setup_tc_block(priv, type_data);
+	default:
+		return -EOPNOTSUPP;
+	}
+	return 0;
+}
+
+static int ocelot_vlan_vid_add(struct net_device *dev, u16 vid, bool pvid,
+			       bool untagged)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot_port *ocelot_port = &priv->port;
+	struct ocelot *ocelot = ocelot_port->ocelot;
+	int port = priv->port.index;
+	int ret;
+
+	ret = ocelot_vlan_add(ocelot, port, vid, pvid, untagged);
+	if (ret)
+		return ret;
+
+	/* Add the port MAC address to with the right VLAN information */
+	ocelot_mact_learn(ocelot, PGID_CPU, dev->dev_addr, vid,
+			  ENTRYTYPE_LOCKED);
+
+	return 0;
+}
+
+static int ocelot_vlan_vid_del(struct net_device *dev, u16 vid)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot *ocelot = priv->port.ocelot;
+	int port = priv->port.index;
+	int ret;
+
+	/* 8021q removes VID 0 on module unload for all interfaces
+	 * with VLAN filtering feature. We need to keep it to receive
+	 * untagged traffic.
+	 */
+	if (vid == OCELOT_STANDALONE_PVID)
+		return 0;
+
+	ret = ocelot_vlan_del(ocelot, port, vid);
+	if (ret)
+		return ret;
+
+	/* Del the port MAC address to with the right VLAN information */
+	ocelot_mact_forget(ocelot, dev->dev_addr, vid);
+
+	return 0;
+}
+
+static int ocelot_port_open(struct net_device *dev)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+
+	phylink_start(priv->phylink);
+
+	return 0;
+}
+
+static int ocelot_port_stop(struct net_device *dev)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+
+	phylink_stop(priv->phylink);
+
+	return 0;
+}
+
+static netdev_tx_t ocelot_port_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot_port *ocelot_port = &priv->port;
+	struct ocelot *ocelot = ocelot_port->ocelot;
+	int port = priv->port.index;
+	u32 rew_op = 0;
+
+	if (!static_branch_unlikely(&ocelot_fdma_enabled) &&
+	    !ocelot_can_inject(ocelot, 0))
+		return NETDEV_TX_BUSY;
+
+	/* Check if timestamping is needed */
+	if (ocelot->ptp && (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) {
+		struct sk_buff *clone = NULL;
+
+		if (ocelot_port_txtstamp_request(ocelot, port, skb, &clone)) {
+			kfree_skb(skb);
+			return NETDEV_TX_OK;
+		}
+
+		if (clone)
+			OCELOT_SKB_CB(skb)->clone = clone;
+
+		rew_op = ocelot_ptp_rew_op(skb);
+	}
+
+	if (static_branch_unlikely(&ocelot_fdma_enabled)) {
+		ocelot_fdma_inject_frame(ocelot, port, rew_op, skb, dev);
+	} else {
+		ocelot_port_inject_frame(ocelot, port, 0, rew_op, skb);
+
+		consume_skb(skb);
+	}
+
+	return NETDEV_TX_OK;
+}
+
+enum ocelot_action_type {
+	OCELOT_MACT_LEARN,
+	OCELOT_MACT_FORGET,
+};
+
+struct ocelot_mact_work_ctx {
+	struct work_struct work;
+	struct ocelot *ocelot;
+	enum ocelot_action_type type;
+	union {
+		/* OCELOT_MACT_LEARN */
+		struct {
+			unsigned char addr[ETH_ALEN];
+			u16 vid;
+			enum macaccess_entry_type entry_type;
+			int pgid;
+		} learn;
+		/* OCELOT_MACT_FORGET */
+		struct {
+			unsigned char addr[ETH_ALEN];
+			u16 vid;
+		} forget;
+	};
+};
+
+#define ocelot_work_to_ctx(x) \
+	container_of((x), struct ocelot_mact_work_ctx, work)
+
+static void ocelot_mact_work(struct work_struct *work)
+{
+	struct ocelot_mact_work_ctx *w = ocelot_work_to_ctx(work);
+	struct ocelot *ocelot = w->ocelot;
+
+	switch (w->type) {
+	case OCELOT_MACT_LEARN:
+		ocelot_mact_learn(ocelot, w->learn.pgid, w->learn.addr,
+				  w->learn.vid, w->learn.entry_type);
+		break;
+	case OCELOT_MACT_FORGET:
+		ocelot_mact_forget(ocelot, w->forget.addr, w->forget.vid);
+		break;
+	default:
+		break;
+	}
+
+	kfree(w);
+}
+
+static int ocelot_enqueue_mact_action(struct ocelot *ocelot,
+				      const struct ocelot_mact_work_ctx *ctx)
+{
+	struct ocelot_mact_work_ctx *w = kmemdup(ctx, sizeof(*w), GFP_ATOMIC);
+
+	if (!w)
+		return -ENOMEM;
+
+	w->ocelot = ocelot;
+	INIT_WORK(&w->work, ocelot_mact_work);
+	queue_work(ocelot->owq, &w->work);
+
+	return 0;
+}
+
+static int ocelot_mc_unsync(struct net_device *dev, const unsigned char *addr)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot_port *ocelot_port = &priv->port;
+	struct ocelot *ocelot = ocelot_port->ocelot;
+	struct ocelot_mact_work_ctx w;
+
+	ether_addr_copy(w.forget.addr, addr);
+	w.forget.vid = OCELOT_STANDALONE_PVID;
+	w.type = OCELOT_MACT_FORGET;
+
+	return ocelot_enqueue_mact_action(ocelot, &w);
+}
+
+static int ocelot_mc_sync(struct net_device *dev, const unsigned char *addr)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot_port *ocelot_port = &priv->port;
+	struct ocelot *ocelot = ocelot_port->ocelot;
+	struct ocelot_mact_work_ctx w;
+
+	ether_addr_copy(w.learn.addr, addr);
+	w.learn.vid = OCELOT_STANDALONE_PVID;
+	w.learn.pgid = PGID_CPU;
+	w.learn.entry_type = ENTRYTYPE_LOCKED;
+	w.type = OCELOT_MACT_LEARN;
+
+	return ocelot_enqueue_mact_action(ocelot, &w);
+}
+
+static void ocelot_set_rx_mode(struct net_device *dev)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot *ocelot = priv->port.ocelot;
+	u32 val;
+	int i;
+
+	/* This doesn't handle promiscuous mode because the bridge core is
+	 * setting IFF_PROMISC on all slave interfaces and all frames would be
+	 * forwarded to the CPU port.
+	 */
+	val = GENMASK(ocelot->num_phys_ports - 1, 0);
+	for_each_nonreserved_multicast_dest_pgid(ocelot, i)
+		ocelot_write_rix(ocelot, val, ANA_PGID_PGID, i);
+
+	__dev_mc_sync(dev, ocelot_mc_sync, ocelot_mc_unsync);
+}
+
+static int ocelot_port_set_mac_address(struct net_device *dev, void *p)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot_port *ocelot_port = &priv->port;
+	struct ocelot *ocelot = ocelot_port->ocelot;
+	const struct sockaddr *addr = p;
+
+	/* Learn the new net device MAC address in the mac table. */
+	ocelot_mact_learn(ocelot, PGID_CPU, addr->sa_data,
+			  OCELOT_STANDALONE_PVID, ENTRYTYPE_LOCKED);
+	/* Then forget the previous one. */
+	ocelot_mact_forget(ocelot, dev->dev_addr, OCELOT_STANDALONE_PVID);
+
+	eth_hw_addr_set(dev, addr->sa_data);
+	return 0;
+}
+
+static void ocelot_get_stats64(struct net_device *dev,
+			       struct rtnl_link_stats64 *stats)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot *ocelot = priv->port.ocelot;
+	int port = priv->port.index;
+
+	return ocelot_port_get_stats64(ocelot, port, stats);
+}
+
+static int ocelot_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
+			       struct net_device *dev,
+			       const unsigned char *addr,
+			       u16 vid, u16 flags,
+			       struct netlink_ext_ack *extack)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot_port *ocelot_port = &priv->port;
+	struct ocelot *ocelot = ocelot_port->ocelot;
+	int port = priv->port.index;
+
+	return ocelot_fdb_add(ocelot, port, addr, vid, ocelot_port->bridge);
+}
+
+static int ocelot_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
+			       struct net_device *dev,
+			       const unsigned char *addr, u16 vid,
+			       struct netlink_ext_ack *extack)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot_port *ocelot_port = &priv->port;
+	struct ocelot *ocelot = ocelot_port->ocelot;
+	int port = priv->port.index;
+
+	return ocelot_fdb_del(ocelot, port, addr, vid, ocelot_port->bridge);
+}
+
+static int ocelot_port_fdb_do_dump(const unsigned char *addr, u16 vid,
+				   bool is_static, void *data)
+{
+	struct ocelot_dump_ctx *dump = data;
+	u32 portid = NETLINK_CB(dump->cb->skb).portid;
+	u32 seq = dump->cb->nlh->nlmsg_seq;
+	struct nlmsghdr *nlh;
+	struct ndmsg *ndm;
+
+	if (dump->idx < dump->cb->args[2])
+		goto skip;
+
+	nlh = nlmsg_put(dump->skb, portid, seq, RTM_NEWNEIGH,
+			sizeof(*ndm), NLM_F_MULTI);
+	if (!nlh)
+		return -EMSGSIZE;
+
+	ndm = nlmsg_data(nlh);
+	ndm->ndm_family  = AF_BRIDGE;
+	ndm->ndm_pad1    = 0;
+	ndm->ndm_pad2    = 0;
+	ndm->ndm_flags   = NTF_SELF;
+	ndm->ndm_type    = 0;
+	ndm->ndm_ifindex = dump->dev->ifindex;
+	ndm->ndm_state   = is_static ? NUD_NOARP : NUD_REACHABLE;
+
+	if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, addr))
+		goto nla_put_failure;
+
+	if (vid && nla_put_u16(dump->skb, NDA_VLAN, vid))
+		goto nla_put_failure;
+
+	nlmsg_end(dump->skb, nlh);
+
+skip:
+	dump->idx++;
+	return 0;
+
+nla_put_failure:
+	nlmsg_cancel(dump->skb, nlh);
+	return -EMSGSIZE;
+}
+
+static int ocelot_port_fdb_dump(struct sk_buff *skb,
+				struct netlink_callback *cb,
+				struct net_device *dev,
+				struct net_device *filter_dev, int *idx)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot *ocelot = priv->port.ocelot;
+	struct ocelot_dump_ctx dump = {
+		.dev = dev,
+		.skb = skb,
+		.cb = cb,
+		.idx = *idx,
+	};
+	int port = priv->port.index;
+	int ret;
+
+	ret = ocelot_fdb_dump(ocelot, port, ocelot_port_fdb_do_dump, &dump);
+
+	*idx = dump.idx;
+
+	return ret;
+}
+
+static int ocelot_vlan_rx_add_vid(struct net_device *dev, __be16 proto,
+				  u16 vid)
+{
+	return ocelot_vlan_vid_add(dev, vid, false, false);
+}
+
+static int ocelot_vlan_rx_kill_vid(struct net_device *dev, __be16 proto,
+				   u16 vid)
+{
+	return ocelot_vlan_vid_del(dev, vid);
+}
+
+static void ocelot_vlan_mode(struct ocelot *ocelot, int port,
+			     netdev_features_t features)
+{
+	u32 val;
+
+	/* Filtering */
+	val = ocelot_read(ocelot, ANA_VLANMASK);
+	if (features & NETIF_F_HW_VLAN_CTAG_FILTER)
+		val |= BIT(port);
+	else
+		val &= ~BIT(port);
+	ocelot_write(ocelot, val, ANA_VLANMASK);
+}
+
+static int ocelot_set_features(struct net_device *dev,
+			       netdev_features_t features)
+{
+	netdev_features_t changed = dev->features ^ features;
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot *ocelot = priv->port.ocelot;
+	int port = priv->port.index;
+
+	if ((dev->features & NETIF_F_HW_TC) > (features & NETIF_F_HW_TC) &&
+	    priv->tc.offload_cnt) {
+		netdev_err(dev,
+			   "Cannot disable HW TC offload while offloads active\n");
+		return -EBUSY;
+	}
+
+	if (changed & NETIF_F_HW_VLAN_CTAG_FILTER)
+		ocelot_vlan_mode(ocelot, port, features);
+
+	return 0;
+}
+
+static int ocelot_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot *ocelot = priv->port.ocelot;
+	int port = priv->port.index;
+
+	/* If the attached PHY device isn't capable of timestamping operations,
+	 * use our own (when possible).
+	 */
+	if (!phy_has_hwtstamp(dev->phydev) && ocelot->ptp) {
+		switch (cmd) {
+		case SIOCSHWTSTAMP:
+			return ocelot_hwstamp_set(ocelot, port, ifr);
+		case SIOCGHWTSTAMP:
+			return ocelot_hwstamp_get(ocelot, port, ifr);
+		}
+	}
+
+	return phy_mii_ioctl(dev->phydev, ifr, cmd);
+}
+
+static int ocelot_change_mtu(struct net_device *dev, int new_mtu)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot_port *ocelot_port = &priv->port;
+	struct ocelot *ocelot = ocelot_port->ocelot;
+
+	ocelot_port_set_maxlen(ocelot, priv->port.index, new_mtu);
+	WRITE_ONCE(dev->mtu, new_mtu);
+
+	return 0;
+}
+
+static const struct net_device_ops ocelot_port_netdev_ops = {
+	.ndo_open			= ocelot_port_open,
+	.ndo_stop			= ocelot_port_stop,
+	.ndo_start_xmit			= ocelot_port_xmit,
+	.ndo_change_mtu			= ocelot_change_mtu,
+	.ndo_set_rx_mode		= ocelot_set_rx_mode,
+	.ndo_set_mac_address		= ocelot_port_set_mac_address,
+	.ndo_get_stats64		= ocelot_get_stats64,
+	.ndo_fdb_add			= ocelot_port_fdb_add,
+	.ndo_fdb_del			= ocelot_port_fdb_del,
+	.ndo_fdb_dump			= ocelot_port_fdb_dump,
+	.ndo_vlan_rx_add_vid		= ocelot_vlan_rx_add_vid,
+	.ndo_vlan_rx_kill_vid		= ocelot_vlan_rx_kill_vid,
+	.ndo_set_features		= ocelot_set_features,
+	.ndo_setup_tc			= ocelot_setup_tc,
+	.ndo_eth_ioctl			= ocelot_ioctl,
+	.ndo_get_devlink_port		= ocelot_get_devlink_port,
+};
+
+struct net_device *ocelot_port_to_netdev(struct ocelot *ocelot, int port)
+{
+	struct ocelot_port *ocelot_port = ocelot->ports[port];
+	struct ocelot_port_private *priv;
+
+	if (!ocelot_port)
+		return NULL;
+
+	priv = container_of(ocelot_port, struct ocelot_port_private, port);
+
+	return priv->dev;
+}
+
+/* Checks if the net_device instance given to us originates from our driver */
+static bool ocelot_netdevice_dev_check(const struct net_device *dev)
+{
+	return dev->netdev_ops == &ocelot_port_netdev_ops;
+}
+
+int ocelot_netdev_to_port(struct net_device *dev)
+{
+	struct ocelot_port_private *priv;
+
+	if (!dev || !ocelot_netdevice_dev_check(dev))
+		return -EINVAL;
+
+	priv = netdev_priv(dev);
+
+	return priv->port.index;
+}
+
+static void ocelot_port_get_strings(struct net_device *netdev, u32 sset,
+				    u8 *data)
+{
+	struct ocelot_port_private *priv = netdev_priv(netdev);
+	struct ocelot *ocelot = priv->port.ocelot;
+	int port = priv->port.index;
+
+	ocelot_get_strings(ocelot, port, sset, data);
+}
+
+static void ocelot_port_get_ethtool_stats(struct net_device *dev,
+					  struct ethtool_stats *stats,
+					  u64 *data)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot *ocelot = priv->port.ocelot;
+	int port = priv->port.index;
+
+	ocelot_get_ethtool_stats(ocelot, port, data);
+}
+
+static int ocelot_port_get_sset_count(struct net_device *dev, int sset)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot *ocelot = priv->port.ocelot;
+	int port = priv->port.index;
+
+	return ocelot_get_sset_count(ocelot, port, sset);
+}
+
+static int ocelot_port_get_ts_info(struct net_device *dev,
+				   struct ethtool_ts_info *info)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot *ocelot = priv->port.ocelot;
+	int port = priv->port.index;
+
+	if (!ocelot->ptp)
+		return ethtool_op_get_ts_info(dev, info);
+
+	return ocelot_get_ts_info(ocelot, port, info);
+}
+
+static const struct ethtool_ops ocelot_ethtool_ops = {
+	.get_strings		= ocelot_port_get_strings,
+	.get_ethtool_stats	= ocelot_port_get_ethtool_stats,
+	.get_sset_count		= ocelot_port_get_sset_count,
+	.get_link_ksettings	= phy_ethtool_get_link_ksettings,
+	.set_link_ksettings	= phy_ethtool_set_link_ksettings,
+	.get_ts_info		= ocelot_port_get_ts_info,
+};
+
+static void ocelot_port_attr_stp_state_set(struct ocelot *ocelot, int port,
+					   u8 state)
+{
+	ocelot_bridge_stp_state_set(ocelot, port, state);
+}
+
+static void ocelot_port_attr_ageing_set(struct ocelot *ocelot, int port,
+					unsigned long ageing_clock_t)
+{
+	unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t);
+	u32 ageing_time = jiffies_to_msecs(ageing_jiffies);
+
+	ocelot_set_ageing_time(ocelot, ageing_time);
+}
+
+static void ocelot_port_attr_mc_set(struct ocelot *ocelot, int port, bool mc)
+{
+	u32 cpu_fwd_mcast = ANA_PORT_CPU_FWD_CFG_CPU_IGMP_REDIR_ENA |
+			    ANA_PORT_CPU_FWD_CFG_CPU_MLD_REDIR_ENA |
+			    ANA_PORT_CPU_FWD_CFG_CPU_IPMC_CTRL_COPY_ENA;
+	u32 val = 0;
+
+	if (mc)
+		val = cpu_fwd_mcast;
+
+	ocelot_rmw_gix(ocelot, val, cpu_fwd_mcast,
+		       ANA_PORT_CPU_FWD_CFG, port);
+}
+
+static int ocelot_port_attr_set(struct net_device *dev, const void *ctx,
+				const struct switchdev_attr *attr,
+				struct netlink_ext_ack *extack)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot *ocelot = priv->port.ocelot;
+	int port = priv->port.index;
+	int err = 0;
+
+	if (ctx && ctx != priv)
+		return 0;
+
+	switch (attr->id) {
+	case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
+		ocelot_port_attr_stp_state_set(ocelot, port, attr->u.stp_state);
+		break;
+	case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
+		ocelot_port_attr_ageing_set(ocelot, port, attr->u.ageing_time);
+		break;
+	case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
+		ocelot_port_vlan_filtering(ocelot, port, attr->u.vlan_filtering,
+					   extack);
+		break;
+	case SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED:
+		ocelot_port_attr_mc_set(ocelot, port, !attr->u.mc_disabled);
+		break;
+	case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS:
+		err = ocelot_port_pre_bridge_flags(ocelot, port,
+						   attr->u.brport_flags);
+		break;
+	case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
+		ocelot_port_bridge_flags(ocelot, port, attr->u.brport_flags);
+		break;
+	default:
+		err = -EOPNOTSUPP;
+		break;
+	}
+
+	return err;
+}
+
+static int ocelot_vlan_vid_prepare(struct net_device *dev, u16 vid, bool pvid,
+				   bool untagged, struct netlink_ext_ack *extack)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot_port *ocelot_port = &priv->port;
+	struct ocelot *ocelot = ocelot_port->ocelot;
+	int port = priv->port.index;
+
+	return ocelot_vlan_prepare(ocelot, port, vid, pvid, untagged, extack);
+}
+
+static int ocelot_port_obj_add_vlan(struct net_device *dev,
+				    const struct switchdev_obj_port_vlan *vlan,
+				    struct netlink_ext_ack *extack)
+{
+	bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
+	bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
+	int ret;
+
+	ret = ocelot_vlan_vid_prepare(dev, vlan->vid, pvid, untagged, extack);
+	if (ret)
+		return ret;
+
+	return ocelot_vlan_vid_add(dev, vlan->vid, pvid, untagged);
+}
+
+static int ocelot_port_obj_add_mdb(struct net_device *dev,
+				   const struct switchdev_obj_port_mdb *mdb)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot_port *ocelot_port = &priv->port;
+	struct ocelot *ocelot = ocelot_port->ocelot;
+	int port = priv->port.index;
+
+	return ocelot_port_mdb_add(ocelot, port, mdb, ocelot_port->bridge);
+}
+
+static int ocelot_port_obj_del_mdb(struct net_device *dev,
+				   const struct switchdev_obj_port_mdb *mdb)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot_port *ocelot_port = &priv->port;
+	struct ocelot *ocelot = ocelot_port->ocelot;
+	int port = priv->port.index;
+
+	return ocelot_port_mdb_del(ocelot, port, mdb, ocelot_port->bridge);
+}
+
+static int ocelot_port_obj_mrp_add(struct net_device *dev,
+				   const struct switchdev_obj_mrp *mrp)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot_port *ocelot_port = &priv->port;
+	struct ocelot *ocelot = ocelot_port->ocelot;
+	int port = priv->port.index;
+
+	return ocelot_mrp_add(ocelot, port, mrp);
+}
+
+static int ocelot_port_obj_mrp_del(struct net_device *dev,
+				   const struct switchdev_obj_mrp *mrp)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot_port *ocelot_port = &priv->port;
+	struct ocelot *ocelot = ocelot_port->ocelot;
+	int port = priv->port.index;
+
+	return ocelot_mrp_del(ocelot, port, mrp);
+}
+
+static int
+ocelot_port_obj_mrp_add_ring_role(struct net_device *dev,
+				  const struct switchdev_obj_ring_role_mrp *mrp)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot_port *ocelot_port = &priv->port;
+	struct ocelot *ocelot = ocelot_port->ocelot;
+	int port = priv->port.index;
+
+	return ocelot_mrp_add_ring_role(ocelot, port, mrp);
+}
+
+static int
+ocelot_port_obj_mrp_del_ring_role(struct net_device *dev,
+				  const struct switchdev_obj_ring_role_mrp *mrp)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot_port *ocelot_port = &priv->port;
+	struct ocelot *ocelot = ocelot_port->ocelot;
+	int port = priv->port.index;
+
+	return ocelot_mrp_del_ring_role(ocelot, port, mrp);
+}
+
+static int ocelot_port_obj_add(struct net_device *dev, const void *ctx,
+			       const struct switchdev_obj *obj,
+			       struct netlink_ext_ack *extack)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	int ret = 0;
+
+	if (ctx && ctx != priv)
+		return 0;
+
+	switch (obj->id) {
+	case SWITCHDEV_OBJ_ID_PORT_VLAN:
+		ret = ocelot_port_obj_add_vlan(dev,
+					       SWITCHDEV_OBJ_PORT_VLAN(obj),
+					       extack);
+		break;
+	case SWITCHDEV_OBJ_ID_PORT_MDB:
+		ret = ocelot_port_obj_add_mdb(dev, SWITCHDEV_OBJ_PORT_MDB(obj));
+		break;
+	case SWITCHDEV_OBJ_ID_MRP:
+		ret = ocelot_port_obj_mrp_add(dev, SWITCHDEV_OBJ_MRP(obj));
+		break;
+	case SWITCHDEV_OBJ_ID_RING_ROLE_MRP:
+		ret = ocelot_port_obj_mrp_add_ring_role(dev,
+							SWITCHDEV_OBJ_RING_ROLE_MRP(obj));
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return ret;
+}
+
+static int ocelot_port_obj_del(struct net_device *dev, const void *ctx,
+			       const struct switchdev_obj *obj)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	int ret = 0;
+
+	if (ctx && ctx != priv)
+		return 0;
+
+	switch (obj->id) {
+	case SWITCHDEV_OBJ_ID_PORT_VLAN:
+		ret = ocelot_vlan_vid_del(dev,
+					  SWITCHDEV_OBJ_PORT_VLAN(obj)->vid);
+		break;
+	case SWITCHDEV_OBJ_ID_PORT_MDB:
+		ret = ocelot_port_obj_del_mdb(dev, SWITCHDEV_OBJ_PORT_MDB(obj));
+		break;
+	case SWITCHDEV_OBJ_ID_MRP:
+		ret = ocelot_port_obj_mrp_del(dev, SWITCHDEV_OBJ_MRP(obj));
+		break;
+	case SWITCHDEV_OBJ_ID_RING_ROLE_MRP:
+		ret = ocelot_port_obj_mrp_del_ring_role(dev,
+							SWITCHDEV_OBJ_RING_ROLE_MRP(obj));
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return ret;
+}
+
+static void ocelot_inherit_brport_flags(struct ocelot *ocelot, int port,
+					struct net_device *brport_dev)
+{
+	struct switchdev_brport_flags flags = {0};
+	int flag;
+
+	flags.mask = BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD | BR_BCAST_FLOOD;
+
+	for_each_set_bit(flag, &flags.mask, 32)
+		if (br_port_flag_is_set(brport_dev, BIT(flag)))
+			flags.val |= BIT(flag);
+
+	ocelot_port_bridge_flags(ocelot, port, flags);
+}
+
+static void ocelot_clear_brport_flags(struct ocelot *ocelot, int port)
+{
+	struct switchdev_brport_flags flags;
+
+	flags.mask = BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD | BR_BCAST_FLOOD;
+	flags.val = flags.mask & ~BR_LEARNING;
+
+	ocelot_port_bridge_flags(ocelot, port, flags);
+}
+
+static int ocelot_switchdev_sync(struct ocelot *ocelot, int port,
+				 struct net_device *brport_dev,
+				 struct net_device *bridge_dev,
+				 struct netlink_ext_ack *extack)
+{
+	clock_t ageing_time;
+	u8 stp_state;
+
+	ocelot_inherit_brport_flags(ocelot, port, brport_dev);
+
+	stp_state = br_port_get_stp_state(brport_dev);
+	ocelot_bridge_stp_state_set(ocelot, port, stp_state);
+
+	ageing_time = br_get_ageing_time(bridge_dev);
+	ocelot_port_attr_ageing_set(ocelot, port, ageing_time);
+
+	return ocelot_port_vlan_filtering(ocelot, port,
+					  br_vlan_enabled(bridge_dev),
+					  extack);
+}
+
+static int ocelot_switchdev_unsync(struct ocelot *ocelot, int port)
+{
+	int err;
+
+	err = ocelot_port_vlan_filtering(ocelot, port, false, NULL);
+	if (err)
+		return err;
+
+	ocelot_clear_brport_flags(ocelot, port);
+
+	ocelot_bridge_stp_state_set(ocelot, port, BR_STATE_FORWARDING);
+
+	return 0;
+}
+
+static int ocelot_bridge_num_get(struct ocelot *ocelot,
+				 const struct net_device *bridge_dev)
+{
+	int bridge_num = ocelot_bridge_num_find(ocelot, bridge_dev);
+
+	if (bridge_num < 0) {
+		/* First port that offloads this bridge */
+		bridge_num = find_first_zero_bit(&ocelot->bridges,
+						 ocelot->num_phys_ports);
+
+		set_bit(bridge_num, &ocelot->bridges);
+	}
+
+	return bridge_num;
+}
+
+static void ocelot_bridge_num_put(struct ocelot *ocelot,
+				  const struct net_device *bridge_dev,
+				  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.
+	 */
+	if (!ocelot_bridge_num_find(ocelot, bridge_dev))
+		clear_bit(bridge_num, &ocelot->bridges);
+}
+
+static int ocelot_netdevice_bridge_join(struct net_device *dev,
+					struct net_device *brport_dev,
+					struct net_device *bridge,
+					struct netlink_ext_ack *extack)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot_port *ocelot_port = &priv->port;
+	struct ocelot *ocelot = ocelot_port->ocelot;
+	int port = priv->port.index;
+	int bridge_num, err;
+
+	bridge_num = ocelot_bridge_num_get(ocelot, bridge);
+
+	err = ocelot_port_bridge_join(ocelot, port, bridge, bridge_num,
+				      extack);
+	if (err)
+		goto err_join;
+
+	err = switchdev_bridge_port_offload(brport_dev, dev, priv,
+					    &ocelot_switchdev_nb,
+					    &ocelot_switchdev_blocking_nb,
+					    false, extack);
+	if (err)
+		goto err_switchdev_offload;
+
+	err = ocelot_switchdev_sync(ocelot, port, brport_dev, bridge, extack);
+	if (err)
+		goto err_switchdev_sync;
+
+	return 0;
+
+err_switchdev_sync:
+	switchdev_bridge_port_unoffload(brport_dev, priv,
+					&ocelot_switchdev_nb,
+					&ocelot_switchdev_blocking_nb);
+err_switchdev_offload:
+	ocelot_port_bridge_leave(ocelot, port, bridge);
+err_join:
+	ocelot_bridge_num_put(ocelot, bridge, bridge_num);
+	return err;
+}
+
+static void ocelot_netdevice_pre_bridge_leave(struct net_device *dev,
+					      struct net_device *brport_dev)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+
+	switchdev_bridge_port_unoffload(brport_dev, priv,
+					&ocelot_switchdev_nb,
+					&ocelot_switchdev_blocking_nb);
+}
+
+static int ocelot_netdevice_bridge_leave(struct net_device *dev,
+					 struct net_device *brport_dev,
+					 struct net_device *bridge)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot_port *ocelot_port = &priv->port;
+	struct ocelot *ocelot = ocelot_port->ocelot;
+	int bridge_num = ocelot_port->bridge_num;
+	int port = priv->port.index;
+	int err;
+
+	err = ocelot_switchdev_unsync(ocelot, port);
+	if (err)
+		return err;
+
+	ocelot_port_bridge_leave(ocelot, port, bridge);
+	ocelot_bridge_num_put(ocelot, bridge, bridge_num);
+
+	return 0;
+}
+
+static int ocelot_netdevice_lag_join(struct net_device *dev,
+				     struct net_device *bond,
+				     struct netdev_lag_upper_info *info,
+				     struct netlink_ext_ack *extack)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot_port *ocelot_port = &priv->port;
+	struct ocelot *ocelot = ocelot_port->ocelot;
+	struct net_device *bridge_dev;
+	int port = priv->port.index;
+	int err;
+
+	err = ocelot_port_lag_join(ocelot, port, bond, info, extack);
+	if (err == -EOPNOTSUPP)
+		/* Offloading not supported, fall back to software LAG */
+		return 0;
+
+	bridge_dev = netdev_master_upper_dev_get(bond);
+	if (!bridge_dev || !netif_is_bridge_master(bridge_dev))
+		return 0;
+
+	err = ocelot_netdevice_bridge_join(dev, bond, bridge_dev, extack);
+	if (err)
+		goto err_bridge_join;
+
+	return 0;
+
+err_bridge_join:
+	ocelot_port_lag_leave(ocelot, port, bond);
+	return err;
+}
+
+static void ocelot_netdevice_pre_lag_leave(struct net_device *dev,
+					   struct net_device *bond)
+{
+	struct net_device *bridge_dev;
+
+	bridge_dev = netdev_master_upper_dev_get(bond);
+	if (!bridge_dev || !netif_is_bridge_master(bridge_dev))
+		return;
+
+	ocelot_netdevice_pre_bridge_leave(dev, bond);
+}
+
+static int ocelot_netdevice_lag_leave(struct net_device *dev,
+				      struct net_device *bond)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	struct ocelot_port *ocelot_port = &priv->port;
+	struct ocelot *ocelot = ocelot_port->ocelot;
+	struct net_device *bridge_dev;
+	int port = priv->port.index;
+
+	ocelot_port_lag_leave(ocelot, port, bond);
+
+	bridge_dev = netdev_master_upper_dev_get(bond);
+	if (!bridge_dev || !netif_is_bridge_master(bridge_dev))
+		return 0;
+
+	return ocelot_netdevice_bridge_leave(dev, bond, bridge_dev);
+}
+
+static int ocelot_netdevice_changeupper(struct net_device *dev,
+					struct net_device *brport_dev,
+					struct netdev_notifier_changeupper_info *info)
+{
+	struct netlink_ext_ack *extack;
+	int err = 0;
+
+	extack = netdev_notifier_info_to_extack(&info->info);
+
+	if (netif_is_bridge_master(info->upper_dev)) {
+		if (info->linking)
+			err = ocelot_netdevice_bridge_join(dev, brport_dev,
+							   info->upper_dev,
+							   extack);
+		else
+			err = ocelot_netdevice_bridge_leave(dev, brport_dev,
+							    info->upper_dev);
+	}
+	if (netif_is_lag_master(info->upper_dev)) {
+		if (info->linking)
+			err = ocelot_netdevice_lag_join(dev, info->upper_dev,
+							info->upper_info, extack);
+		else
+			ocelot_netdevice_lag_leave(dev, info->upper_dev);
+	}
+
+	return notifier_from_errno(err);
+}
+
+/* Treat CHANGEUPPER events on an offloaded LAG as individual CHANGEUPPER
+ * events for the lower physical ports of the LAG.
+ * If the LAG upper isn't offloaded, ignore its CHANGEUPPER events.
+ * In case the LAG joined a bridge, notify that we are offloading it and can do
+ * forwarding in hardware towards it.
+ */
+static int
+ocelot_netdevice_lag_changeupper(struct net_device *dev,
+				 struct netdev_notifier_changeupper_info *info)
+{
+	struct net_device *lower;
+	struct list_head *iter;
+	int err = NOTIFY_DONE;
+
+	netdev_for_each_lower_dev(dev, lower, iter) {
+		struct ocelot_port_private *priv = netdev_priv(lower);
+		struct ocelot_port *ocelot_port = &priv->port;
+
+		if (ocelot_port->bond != dev)
+			return NOTIFY_OK;
+
+		err = ocelot_netdevice_changeupper(lower, dev, info);
+		if (err)
+			return notifier_from_errno(err);
+	}
+
+	return NOTIFY_DONE;
+}
+
+static int
+ocelot_netdevice_prechangeupper(struct net_device *dev,
+				struct net_device *brport_dev,
+				struct netdev_notifier_changeupper_info *info)
+{
+	if (netif_is_bridge_master(info->upper_dev) && !info->linking)
+		ocelot_netdevice_pre_bridge_leave(dev, brport_dev);
+
+	if (netif_is_lag_master(info->upper_dev) && !info->linking)
+		ocelot_netdevice_pre_lag_leave(dev, info->upper_dev);
+
+	return NOTIFY_DONE;
+}
+
+static int
+ocelot_netdevice_lag_prechangeupper(struct net_device *dev,
+				    struct netdev_notifier_changeupper_info *info)
+{
+	struct net_device *lower;
+	struct list_head *iter;
+	int err = NOTIFY_DONE;
+
+	netdev_for_each_lower_dev(dev, lower, iter) {
+		struct ocelot_port_private *priv = netdev_priv(lower);
+		struct ocelot_port *ocelot_port = &priv->port;
+
+		if (ocelot_port->bond != dev)
+			return NOTIFY_OK;
+
+		err = ocelot_netdevice_prechangeupper(dev, lower, info);
+		if (err)
+			return err;
+	}
+
+	return NOTIFY_DONE;
+}
+
+static int
+ocelot_netdevice_changelowerstate(struct net_device *dev,
+				  struct netdev_lag_lower_state_info *info)
+{
+	struct ocelot_port_private *priv = netdev_priv(dev);
+	bool is_active = info->link_up && info->tx_enabled;
+	struct ocelot_port *ocelot_port = &priv->port;
+	struct ocelot *ocelot = ocelot_port->ocelot;
+	int port = priv->port.index;
+
+	if (!ocelot_port->bond)
+		return NOTIFY_DONE;
+
+	if (ocelot_port->lag_tx_active == is_active)
+		return NOTIFY_DONE;
+
+	ocelot_port_lag_change(ocelot, port, is_active);
+
+	return NOTIFY_OK;
+}
+
+static int ocelot_netdevice_event(struct notifier_block *unused,
+				  unsigned long event, void *ptr)
+{
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+
+	switch (event) {
+	case NETDEV_PRECHANGEUPPER: {
+		struct netdev_notifier_changeupper_info *info = ptr;
+
+		if (ocelot_netdevice_dev_check(dev))
+			return ocelot_netdevice_prechangeupper(dev, dev, info);
+
+		if (netif_is_lag_master(dev))
+			return ocelot_netdevice_lag_prechangeupper(dev, info);
+
+		break;
+	}
+	case NETDEV_CHANGEUPPER: {
+		struct netdev_notifier_changeupper_info *info = ptr;
+
+		if (ocelot_netdevice_dev_check(dev))
+			return ocelot_netdevice_changeupper(dev, dev, info);
+
+		if (netif_is_lag_master(dev))
+			return ocelot_netdevice_lag_changeupper(dev, info);
+
+		break;
+	}
+	case NETDEV_CHANGELOWERSTATE: {
+		struct netdev_notifier_changelowerstate_info *info = ptr;
+
+		if (!ocelot_netdevice_dev_check(dev))
+			break;
+
+		return ocelot_netdevice_changelowerstate(dev,
+							 info->lower_state_info);
+	}
+	default:
+		break;
+	}
+
+	return NOTIFY_DONE;
+}
+
+struct notifier_block ocelot_netdevice_nb __read_mostly = {
+	.notifier_call = ocelot_netdevice_event,
+};
+
+static int ocelot_switchdev_event(struct notifier_block *unused,
+				  unsigned long event, void *ptr)
+{
+	struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
+	int err;
+
+	switch (event) {
+	case SWITCHDEV_PORT_ATTR_SET:
+		err = switchdev_handle_port_attr_set(dev, ptr,
+						     ocelot_netdevice_dev_check,
+						     ocelot_port_attr_set);
+		return notifier_from_errno(err);
+	}
+
+	return NOTIFY_DONE;
+}
+
+struct notifier_block ocelot_switchdev_nb __read_mostly = {
+	.notifier_call = ocelot_switchdev_event,
+};
+
+static int ocelot_switchdev_blocking_event(struct notifier_block *unused,
+					   unsigned long event, void *ptr)
+{
+	struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
+	int err;
+
+	switch (event) {
+		/* Blocking events. */
+	case SWITCHDEV_PORT_OBJ_ADD:
+		err = switchdev_handle_port_obj_add(dev, ptr,
+						    ocelot_netdevice_dev_check,
+						    ocelot_port_obj_add);
+		return notifier_from_errno(err);
+	case SWITCHDEV_PORT_OBJ_DEL:
+		err = switchdev_handle_port_obj_del(dev, ptr,
+						    ocelot_netdevice_dev_check,
+						    ocelot_port_obj_del);
+		return notifier_from_errno(err);
+	case SWITCHDEV_PORT_ATTR_SET:
+		err = switchdev_handle_port_attr_set(dev, ptr,
+						     ocelot_netdevice_dev_check,
+						     ocelot_port_attr_set);
+		return notifier_from_errno(err);
+	}
+
+	return NOTIFY_DONE;
+}
+
+struct notifier_block ocelot_switchdev_blocking_nb __read_mostly = {
+	.notifier_call = ocelot_switchdev_blocking_event,
+};
+
+static void vsc7514_phylink_mac_config(struct phylink_config *config,
+				       unsigned int link_an_mode,
+				       const struct phylink_link_state *state)
+{
+	struct net_device *ndev = to_net_dev(config->dev);
+	struct ocelot_port_private *priv = netdev_priv(ndev);
+	struct ocelot_port *ocelot_port = &priv->port;
+
+	/* Disable HDX fast control */
+	ocelot_port_writel(ocelot_port, DEV_PORT_MISC_HDX_FAST_DIS,
+			   DEV_PORT_MISC);
+
+	/* SGMII only for now */
+	ocelot_port_writel(ocelot_port, PCS1G_MODE_CFG_SGMII_MODE_ENA,
+			   PCS1G_MODE_CFG);
+	ocelot_port_writel(ocelot_port, PCS1G_SD_CFG_SD_SEL, PCS1G_SD_CFG);
+
+	/* Enable PCS */
+	ocelot_port_writel(ocelot_port, PCS1G_CFG_PCS_ENA, PCS1G_CFG);
+
+	/* No aneg on SGMII */
+	ocelot_port_writel(ocelot_port, 0, PCS1G_ANEG_CFG);
+
+	/* No loopback */
+	ocelot_port_writel(ocelot_port, 0, PCS1G_LB_CFG);
+}
+
+static void vsc7514_phylink_mac_link_down(struct phylink_config *config,
+					  unsigned int link_an_mode,
+					  phy_interface_t interface)
+{
+	struct net_device *ndev = to_net_dev(config->dev);
+	struct ocelot_port_private *priv = netdev_priv(ndev);
+	struct ocelot *ocelot = priv->port.ocelot;
+	int port = priv->port.index;
+
+	ocelot_phylink_mac_link_down(ocelot, port, link_an_mode, interface,
+				     OCELOT_MAC_QUIRKS);
+}
+
+static void vsc7514_phylink_mac_link_up(struct phylink_config *config,
+					struct phy_device *phydev,
+					unsigned int link_an_mode,
+					phy_interface_t interface,
+					int speed, int duplex,
+					bool tx_pause, bool rx_pause)
+{
+	struct net_device *ndev = to_net_dev(config->dev);
+	struct ocelot_port_private *priv = netdev_priv(ndev);
+	struct ocelot *ocelot = priv->port.ocelot;
+	int port = priv->port.index;
+
+	ocelot_phylink_mac_link_up(ocelot, port, phydev, link_an_mode,
+				   interface, speed, duplex,
+				   tx_pause, rx_pause, OCELOT_MAC_QUIRKS);
+}
+
+static const struct phylink_mac_ops ocelot_phylink_ops = {
+	.validate		= phylink_generic_validate,
+	.mac_config		= vsc7514_phylink_mac_config,
+	.mac_link_down		= vsc7514_phylink_mac_link_down,
+	.mac_link_up		= vsc7514_phylink_mac_link_up,
+};
+
+static int ocelot_port_phylink_create(struct ocelot *ocelot, int port,
+				      struct device_node *portnp)
+{
+	struct ocelot_port *ocelot_port = ocelot->ports[port];
+	struct ocelot_port_private *priv;
+	struct device *dev = ocelot->dev;
+	phy_interface_t phy_mode;
+	struct phylink *phylink;
+	int err;
+
+	of_get_phy_mode(portnp, &phy_mode);
+	/* DT bindings of internal PHY ports are broken and don't
+	 * specify a phy-mode
+	 */
+	if (phy_mode == PHY_INTERFACE_MODE_NA)
+		phy_mode = PHY_INTERFACE_MODE_INTERNAL;
+
+	if (phy_mode != PHY_INTERFACE_MODE_SGMII &&
+	    phy_mode != PHY_INTERFACE_MODE_QSGMII &&
+	    phy_mode != PHY_INTERFACE_MODE_INTERNAL) {
+		dev_err(dev, "unsupported phy mode %s for port %d\n",
+			phy_modes(phy_mode), port);
+		return -EINVAL;
+	}
+
+	/* Ensure clock signals and speed are set on all QSGMII links */
+	if (phy_mode == PHY_INTERFACE_MODE_QSGMII)
+		ocelot_port_rmwl(ocelot_port, 0,
+				 DEV_CLOCK_CFG_MAC_TX_RST |
+				 DEV_CLOCK_CFG_MAC_RX_RST,
+				 DEV_CLOCK_CFG);
+
+	ocelot_port->phy_mode = phy_mode;
+
+	if (phy_mode != PHY_INTERFACE_MODE_INTERNAL) {
+		struct phy *serdes = of_phy_get(portnp, NULL);
+
+		if (IS_ERR(serdes)) {
+			err = PTR_ERR(serdes);
+			dev_err_probe(dev, err,
+				      "missing SerDes phys for port %d\n",
+				      port);
+			return err;
+		}
+
+		err = phy_set_mode_ext(serdes, PHY_MODE_ETHERNET, phy_mode);
+		of_phy_put(serdes);
+		if (err) {
+			dev_err(dev, "Could not SerDes mode on port %d: %pe\n",
+				port, ERR_PTR(err));
+			return err;
+		}
+	}
+
+	priv = container_of(ocelot_port, struct ocelot_port_private, port);
+
+	priv->phylink_config.dev = &priv->dev->dev;
+	priv->phylink_config.type = PHYLINK_NETDEV;
+	priv->phylink_config.mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE |
+		MAC_10 | MAC_100 | MAC_1000FD | MAC_2500FD;
+
+	__set_bit(ocelot_port->phy_mode,
+		  priv->phylink_config.supported_interfaces);
+
+	phylink = phylink_create(&priv->phylink_config,
+				 of_fwnode_handle(portnp),
+				 phy_mode, &ocelot_phylink_ops);
+	if (IS_ERR(phylink)) {
+		err = PTR_ERR(phylink);
+		dev_err(dev, "Could not create phylink (%pe)\n", phylink);
+		return err;
+	}
+
+	priv->phylink = phylink;
+
+	err = phylink_of_phy_connect(phylink, portnp, 0);
+	if (err) {
+		dev_err(dev, "Could not connect to PHY: %pe\n", ERR_PTR(err));
+		phylink_destroy(phylink);
+		priv->phylink = NULL;
+		return err;
+	}
+
+	return 0;
+}
+
+int ocelot_probe_port(struct ocelot *ocelot, int port, struct regmap *target,
+		      struct device_node *portnp)
+{
+	struct ocelot_port_private *priv;
+	struct ocelot_port *ocelot_port;
+	struct net_device *dev;
+	int err;
+
+	dev = alloc_etherdev(sizeof(struct ocelot_port_private));
+	if (!dev)
+		return -ENOMEM;
+	SET_NETDEV_DEV(dev, ocelot->dev);
+	priv = netdev_priv(dev);
+	priv->dev = dev;
+	ocelot_port = &priv->port;
+	ocelot_port->ocelot = ocelot;
+	ocelot_port->index = port;
+	ocelot_port->target = target;
+	ocelot->ports[port] = ocelot_port;
+
+	dev->netdev_ops = &ocelot_port_netdev_ops;
+	dev->ethtool_ops = &ocelot_ethtool_ops;
+	dev->max_mtu = OCELOT_JUMBO_MTU;
+
+	dev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_RXFCS |
+		NETIF_F_HW_TC;
+	dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_TC;
+
+	err = of_get_ethdev_address(portnp, dev);
+	if (err)
+		eth_hw_addr_gen(dev, ocelot->base_mac, port);
+
+	ocelot_mact_learn(ocelot, PGID_CPU, dev->dev_addr,
+			  OCELOT_STANDALONE_PVID, ENTRYTYPE_LOCKED);
+
+	ocelot_init_port(ocelot, port);
+
+	err = ocelot_port_phylink_create(ocelot, port, portnp);
+	if (err)
+		goto out;
+
+	if (ocelot->fdma)
+		ocelot_fdma_netdev_init(ocelot, dev);
+
+	err = register_netdev(dev);
+	if (err) {
+		dev_err(ocelot->dev, "register_netdev failed\n");
+		goto out_fdma_deinit;
+	}
+
+	return 0;
+
+out_fdma_deinit:
+	if (ocelot->fdma)
+		ocelot_fdma_netdev_deinit(ocelot, dev);
+out:
+	ocelot->ports[port] = NULL;
+	free_netdev(dev);
+
+	return err;
+}
+
+void ocelot_release_port(struct ocelot_port *ocelot_port)
+{
+	struct ocelot_port_private *priv = container_of(ocelot_port,
+						struct ocelot_port_private,
+						port);
+	struct ocelot *ocelot = ocelot_port->ocelot;
+	struct ocelot_fdma *fdma = ocelot->fdma;
+
+	unregister_netdev(priv->dev);
+
+	if (fdma)
+		ocelot_fdma_netdev_deinit(ocelot, priv->dev);
+
+	if (priv->phylink) {
+		rtnl_lock();
+		phylink_disconnect_phy(priv->phylink);
+		rtnl_unlock();
+
+		phylink_destroy(priv->phylink);
+	}
+
+	free_netdev(priv->dev);
+}