Adding upstream version 6.1.76.upstream/6.1.76

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

1 files changed, 2875 insertions, 0 deletions

diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c
new file mode 100644
index 000000000..01b6e13f4
--- /dev/null
+++ b/drivers/net/ethernet/mscc/ocelot.c
@@ -0,0 +1,2875 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Microsemi Ocelot Switch driver
+ *
+ * Copyright (c) 2017 Microsemi Corporation
+ */
+#include <linux/dsa/ocelot.h>
+#include <linux/if_bridge.h>
+#include <soc/mscc/ocelot_vcap.h>
+#include "ocelot.h"
+#include "ocelot_vcap.h"
+
+#define TABLE_UPDATE_SLEEP_US 10
+#define TABLE_UPDATE_TIMEOUT_US 100000
+#define OCELOT_RSV_VLAN_RANGE_START 4000
+
+struct ocelot_mact_entry {
+	u8 mac[ETH_ALEN];
+	u16 vid;
+	enum macaccess_entry_type type;
+};
+
+/* Caller must hold &ocelot->mact_lock */
+static inline u32 ocelot_mact_read_macaccess(struct ocelot *ocelot)
+{
+	return ocelot_read(ocelot, ANA_TABLES_MACACCESS);
+}
+
+/* Caller must hold &ocelot->mact_lock */
+static inline int ocelot_mact_wait_for_completion(struct ocelot *ocelot)
+{
+	u32 val;
+
+	return readx_poll_timeout(ocelot_mact_read_macaccess,
+		ocelot, val,
+		(val & ANA_TABLES_MACACCESS_MAC_TABLE_CMD_M) ==
+		MACACCESS_CMD_IDLE,
+		TABLE_UPDATE_SLEEP_US, TABLE_UPDATE_TIMEOUT_US);
+}
+
+/* Caller must hold &ocelot->mact_lock */
+static void ocelot_mact_select(struct ocelot *ocelot,
+			       const unsigned char mac[ETH_ALEN],
+			       unsigned int vid)
+{
+	u32 macl = 0, mach = 0;
+
+	/* Set the MAC address to handle and the vlan associated in a format
+	 * understood by the hardware.
+	 */
+	mach |= vid    << 16;
+	mach |= mac[0] << 8;
+	mach |= mac[1] << 0;
+	macl |= mac[2] << 24;
+	macl |= mac[3] << 16;
+	macl |= mac[4] << 8;
+	macl |= mac[5] << 0;
+
+	ocelot_write(ocelot, macl, ANA_TABLES_MACLDATA);
+	ocelot_write(ocelot, mach, ANA_TABLES_MACHDATA);
+
+}
+
+static int __ocelot_mact_learn(struct ocelot *ocelot, int port,
+			       const unsigned char mac[ETH_ALEN],
+			       unsigned int vid, enum macaccess_entry_type type)
+{
+	u32 cmd = ANA_TABLES_MACACCESS_VALID |
+		ANA_TABLES_MACACCESS_DEST_IDX(port) |
+		ANA_TABLES_MACACCESS_ENTRYTYPE(type) |
+		ANA_TABLES_MACACCESS_MAC_TABLE_CMD(MACACCESS_CMD_LEARN);
+	unsigned int mc_ports;
+	int err;
+
+	/* Set MAC_CPU_COPY if the CPU port is used by a multicast entry */
+	if (type == ENTRYTYPE_MACv4)
+		mc_ports = (mac[1] << 8) | mac[2];
+	else if (type == ENTRYTYPE_MACv6)
+		mc_ports = (mac[0] << 8) | mac[1];
+	else
+		mc_ports = 0;
+
+	if (mc_ports & BIT(ocelot->num_phys_ports))
+		cmd |= ANA_TABLES_MACACCESS_MAC_CPU_COPY;
+
+	ocelot_mact_select(ocelot, mac, vid);
+
+	/* Issue a write command */
+	ocelot_write(ocelot, cmd, ANA_TABLES_MACACCESS);
+
+	err = ocelot_mact_wait_for_completion(ocelot);
+
+	return err;
+}
+
+int ocelot_mact_learn(struct ocelot *ocelot, int port,
+		      const unsigned char mac[ETH_ALEN],
+		      unsigned int vid, enum macaccess_entry_type type)
+{
+	int ret;
+
+	mutex_lock(&ocelot->mact_lock);
+	ret = __ocelot_mact_learn(ocelot, port, mac, vid, type);
+	mutex_unlock(&ocelot->mact_lock);
+
+	return ret;
+}
+EXPORT_SYMBOL(ocelot_mact_learn);
+
+int ocelot_mact_forget(struct ocelot *ocelot,
+		       const unsigned char mac[ETH_ALEN], unsigned int vid)
+{
+	int err;
+
+	mutex_lock(&ocelot->mact_lock);
+
+	ocelot_mact_select(ocelot, mac, vid);
+
+	/* Issue a forget command */
+	ocelot_write(ocelot,
+		     ANA_TABLES_MACACCESS_MAC_TABLE_CMD(MACACCESS_CMD_FORGET),
+		     ANA_TABLES_MACACCESS);
+
+	err = ocelot_mact_wait_for_completion(ocelot);
+
+	mutex_unlock(&ocelot->mact_lock);
+
+	return err;
+}
+EXPORT_SYMBOL(ocelot_mact_forget);
+
+int ocelot_mact_lookup(struct ocelot *ocelot, int *dst_idx,
+		       const unsigned char mac[ETH_ALEN],
+		       unsigned int vid, enum macaccess_entry_type *type)
+{
+	int val;
+
+	mutex_lock(&ocelot->mact_lock);
+
+	ocelot_mact_select(ocelot, mac, vid);
+
+	/* Issue a read command with MACACCESS_VALID=1. */
+	ocelot_write(ocelot, ANA_TABLES_MACACCESS_VALID |
+		     ANA_TABLES_MACACCESS_MAC_TABLE_CMD(MACACCESS_CMD_READ),
+		     ANA_TABLES_MACACCESS);
+
+	if (ocelot_mact_wait_for_completion(ocelot)) {
+		mutex_unlock(&ocelot->mact_lock);
+		return -ETIMEDOUT;
+	}
+
+	/* Read back the entry flags */
+	val = ocelot_read(ocelot, ANA_TABLES_MACACCESS);
+
+	mutex_unlock(&ocelot->mact_lock);
+
+	if (!(val & ANA_TABLES_MACACCESS_VALID))
+		return -ENOENT;
+
+	*dst_idx = ANA_TABLES_MACACCESS_DEST_IDX_X(val);
+	*type = ANA_TABLES_MACACCESS_ENTRYTYPE_X(val);
+
+	return 0;
+}
+EXPORT_SYMBOL(ocelot_mact_lookup);
+
+int ocelot_mact_learn_streamdata(struct ocelot *ocelot, int dst_idx,
+				 const unsigned char mac[ETH_ALEN],
+				 unsigned int vid,
+				 enum macaccess_entry_type type,
+				 int sfid, int ssid)
+{
+	int ret;
+
+	mutex_lock(&ocelot->mact_lock);
+
+	ocelot_write(ocelot,
+		     (sfid < 0 ? 0 : ANA_TABLES_STREAMDATA_SFID_VALID) |
+		     ANA_TABLES_STREAMDATA_SFID(sfid) |
+		     (ssid < 0 ? 0 : ANA_TABLES_STREAMDATA_SSID_VALID) |
+		     ANA_TABLES_STREAMDATA_SSID(ssid),
+		     ANA_TABLES_STREAMDATA);
+
+	ret = __ocelot_mact_learn(ocelot, dst_idx, mac, vid, type);
+
+	mutex_unlock(&ocelot->mact_lock);
+
+	return ret;
+}
+EXPORT_SYMBOL(ocelot_mact_learn_streamdata);
+
+static void ocelot_mact_init(struct ocelot *ocelot)
+{
+	/* Configure the learning mode entries attributes:
+	 * - Do not copy the frame to the CPU extraction queues.
+	 * - Use the vlan and mac_cpoy for dmac lookup.
+	 */
+	ocelot_rmw(ocelot, 0,
+		   ANA_AGENCTRL_LEARN_CPU_COPY | ANA_AGENCTRL_IGNORE_DMAC_FLAGS
+		   | ANA_AGENCTRL_LEARN_FWD_KILL
+		   | ANA_AGENCTRL_LEARN_IGNORE_VLAN,
+		   ANA_AGENCTRL);
+
+	/* Clear the MAC table. We are not concurrent with anyone, so
+	 * holding &ocelot->mact_lock is pointless.
+	 */
+	ocelot_write(ocelot, MACACCESS_CMD_INIT, ANA_TABLES_MACACCESS);
+}
+
+static void ocelot_vcap_enable(struct ocelot *ocelot, int port)
+{
+	ocelot_write_gix(ocelot, ANA_PORT_VCAP_S2_CFG_S2_ENA |
+			 ANA_PORT_VCAP_S2_CFG_S2_IP6_CFG(0xa),
+			 ANA_PORT_VCAP_S2_CFG, port);
+
+	ocelot_write_gix(ocelot, ANA_PORT_VCAP_CFG_S1_ENA,
+			 ANA_PORT_VCAP_CFG, port);
+
+	ocelot_rmw_gix(ocelot, REW_PORT_CFG_ES0_EN,
+		       REW_PORT_CFG_ES0_EN,
+		       REW_PORT_CFG, port);
+}
+
+static int ocelot_single_vlan_aware_bridge(struct ocelot *ocelot,
+					   struct netlink_ext_ack *extack)
+{
+	struct net_device *bridge = NULL;
+	int port;
+
+	for (port = 0; port < ocelot->num_phys_ports; port++) {
+		struct ocelot_port *ocelot_port = ocelot->ports[port];
+
+		if (!ocelot_port || !ocelot_port->bridge ||
+		    !br_vlan_enabled(ocelot_port->bridge))
+			continue;
+
+		if (!bridge) {
+			bridge = ocelot_port->bridge;
+			continue;
+		}
+
+		if (bridge == ocelot_port->bridge)
+			continue;
+
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Only one VLAN-aware bridge is supported");
+		return -EBUSY;
+	}
+
+	return 0;
+}
+
+static inline u32 ocelot_vlant_read_vlanaccess(struct ocelot *ocelot)
+{
+	return ocelot_read(ocelot, ANA_TABLES_VLANACCESS);
+}
+
+static inline int ocelot_vlant_wait_for_completion(struct ocelot *ocelot)
+{
+	u32 val;
+
+	return readx_poll_timeout(ocelot_vlant_read_vlanaccess,
+		ocelot,
+		val,
+		(val & ANA_TABLES_VLANACCESS_VLAN_TBL_CMD_M) ==
+		ANA_TABLES_VLANACCESS_CMD_IDLE,
+		TABLE_UPDATE_SLEEP_US, TABLE_UPDATE_TIMEOUT_US);
+}
+
+static int ocelot_vlant_set_mask(struct ocelot *ocelot, u16 vid, u32 mask)
+{
+	/* Select the VID to configure */
+	ocelot_write(ocelot, ANA_TABLES_VLANTIDX_V_INDEX(vid),
+		     ANA_TABLES_VLANTIDX);
+	/* Set the vlan port members mask and issue a write command */
+	ocelot_write(ocelot, ANA_TABLES_VLANACCESS_VLAN_PORT_MASK(mask) |
+			     ANA_TABLES_VLANACCESS_CMD_WRITE,
+		     ANA_TABLES_VLANACCESS);
+
+	return ocelot_vlant_wait_for_completion(ocelot);
+}
+
+static int ocelot_port_num_untagged_vlans(struct ocelot *ocelot, int port)
+{
+	struct ocelot_bridge_vlan *vlan;
+	int num_untagged = 0;
+
+	list_for_each_entry(vlan, &ocelot->vlans, list) {
+		if (!(vlan->portmask & BIT(port)))
+			continue;
+
+		/* Ignore the VLAN added by ocelot_add_vlan_unaware_pvid(),
+		 * because this is never active in hardware at the same time as
+		 * the bridge VLANs, which only matter in VLAN-aware mode.
+		 */
+		if (vlan->vid >= OCELOT_RSV_VLAN_RANGE_START)
+			continue;
+
+		if (vlan->untagged & BIT(port))
+			num_untagged++;
+	}
+
+	return num_untagged;
+}
+
+static int ocelot_port_num_tagged_vlans(struct ocelot *ocelot, int port)
+{
+	struct ocelot_bridge_vlan *vlan;
+	int num_tagged = 0;
+
+	list_for_each_entry(vlan, &ocelot->vlans, list) {
+		if (!(vlan->portmask & BIT(port)))
+			continue;
+
+		if (!(vlan->untagged & BIT(port)))
+			num_tagged++;
+	}
+
+	return num_tagged;
+}
+
+/* We use native VLAN when we have to mix egress-tagged VLANs with exactly
+ * _one_ egress-untagged VLAN (_the_ native VLAN)
+ */
+static bool ocelot_port_uses_native_vlan(struct ocelot *ocelot, int port)
+{
+	return ocelot_port_num_tagged_vlans(ocelot, port) &&
+	       ocelot_port_num_untagged_vlans(ocelot, port) == 1;
+}
+
+static struct ocelot_bridge_vlan *
+ocelot_port_find_native_vlan(struct ocelot *ocelot, int port)
+{
+	struct ocelot_bridge_vlan *vlan;
+
+	list_for_each_entry(vlan, &ocelot->vlans, list)
+		if (vlan->portmask & BIT(port) && vlan->untagged & BIT(port))
+			return vlan;
+
+	return NULL;
+}
+
+/* Keep in sync REW_TAG_CFG_TAG_CFG and, if applicable,
+ * REW_PORT_VLAN_CFG_PORT_VID, with the bridge VLAN table and VLAN awareness
+ * state of the port.
+ */
+static void ocelot_port_manage_port_tag(struct ocelot *ocelot, int port)
+{
+	struct ocelot_port *ocelot_port = ocelot->ports[port];
+	enum ocelot_port_tag_config tag_cfg;
+	bool uses_native_vlan = false;
+
+	if (ocelot_port->vlan_aware) {
+		uses_native_vlan = ocelot_port_uses_native_vlan(ocelot, port);
+
+		if (uses_native_vlan)
+			tag_cfg = OCELOT_PORT_TAG_NATIVE;
+		else if (ocelot_port_num_untagged_vlans(ocelot, port))
+			tag_cfg = OCELOT_PORT_TAG_DISABLED;
+		else
+			tag_cfg = OCELOT_PORT_TAG_TRUNK;
+	} else {
+		tag_cfg = OCELOT_PORT_TAG_DISABLED;
+	}
+
+	ocelot_rmw_gix(ocelot, REW_TAG_CFG_TAG_CFG(tag_cfg),
+		       REW_TAG_CFG_TAG_CFG_M,
+		       REW_TAG_CFG, port);
+
+	if (uses_native_vlan) {
+		struct ocelot_bridge_vlan *native_vlan;
+
+		/* Not having a native VLAN is impossible, because
+		 * ocelot_port_num_untagged_vlans has returned 1.
+		 * So there is no use in checking for NULL here.
+		 */
+		native_vlan = ocelot_port_find_native_vlan(ocelot, port);
+
+		ocelot_rmw_gix(ocelot,
+			       REW_PORT_VLAN_CFG_PORT_VID(native_vlan->vid),
+			       REW_PORT_VLAN_CFG_PORT_VID_M,
+			       REW_PORT_VLAN_CFG, port);
+	}
+}
+
+int ocelot_bridge_num_find(struct ocelot *ocelot,
+			   const struct net_device *bridge)
+{
+	int port;
+
+	for (port = 0; port < ocelot->num_phys_ports; port++) {
+		struct ocelot_port *ocelot_port = ocelot->ports[port];
+
+		if (ocelot_port && ocelot_port->bridge == bridge)
+			return ocelot_port->bridge_num;
+	}
+
+	return -1;
+}
+EXPORT_SYMBOL_GPL(ocelot_bridge_num_find);
+
+static u16 ocelot_vlan_unaware_pvid(struct ocelot *ocelot,
+				    const struct net_device *bridge)
+{
+	int bridge_num;
+
+	/* Standalone ports use VID 0 */
+	if (!bridge)
+		return 0;
+
+	bridge_num = ocelot_bridge_num_find(ocelot, bridge);
+	if (WARN_ON(bridge_num < 0))
+		return 0;
+
+	/* VLAN-unaware bridges use a reserved VID going from 4095 downwards */
+	return VLAN_N_VID - bridge_num - 1;
+}
+
+/* Default vlan to clasify for untagged frames (may be zero) */
+static void ocelot_port_set_pvid(struct ocelot *ocelot, int port,
+				 const struct ocelot_bridge_vlan *pvid_vlan)
+{
+	struct ocelot_port *ocelot_port = ocelot->ports[port];
+	u16 pvid = ocelot_vlan_unaware_pvid(ocelot, ocelot_port->bridge);
+	u32 val = 0;
+
+	ocelot_port->pvid_vlan = pvid_vlan;
+
+	if (ocelot_port->vlan_aware && pvid_vlan)
+		pvid = pvid_vlan->vid;
+
+	ocelot_rmw_gix(ocelot,
+		       ANA_PORT_VLAN_CFG_VLAN_VID(pvid),
+		       ANA_PORT_VLAN_CFG_VLAN_VID_M,
+		       ANA_PORT_VLAN_CFG, port);
+
+	/* If there's no pvid, we should drop not only untagged traffic (which
+	 * happens automatically), but also 802.1p traffic which gets
+	 * classified to VLAN 0, but that is always in our RX filter, so it
+	 * would get accepted were it not for this setting.
+	 */
+	if (!pvid_vlan && ocelot_port->vlan_aware)
+		val = ANA_PORT_DROP_CFG_DROP_PRIO_S_TAGGED_ENA |
+		      ANA_PORT_DROP_CFG_DROP_PRIO_C_TAGGED_ENA;
+
+	ocelot_rmw_gix(ocelot, val,
+		       ANA_PORT_DROP_CFG_DROP_PRIO_S_TAGGED_ENA |
+		       ANA_PORT_DROP_CFG_DROP_PRIO_C_TAGGED_ENA,
+		       ANA_PORT_DROP_CFG, port);
+}
+
+static struct ocelot_bridge_vlan *ocelot_bridge_vlan_find(struct ocelot *ocelot,
+							  u16 vid)
+{
+	struct ocelot_bridge_vlan *vlan;
+
+	list_for_each_entry(vlan, &ocelot->vlans, list)
+		if (vlan->vid == vid)
+			return vlan;
+
+	return NULL;
+}
+
+static int ocelot_vlan_member_add(struct ocelot *ocelot, int port, u16 vid,
+				  bool untagged)
+{
+	struct ocelot_bridge_vlan *vlan = ocelot_bridge_vlan_find(ocelot, vid);
+	unsigned long portmask;
+	int err;
+
+	if (vlan) {
+		portmask = vlan->portmask | BIT(port);
+
+		err = ocelot_vlant_set_mask(ocelot, vid, portmask);
+		if (err)
+			return err;
+
+		vlan->portmask = portmask;
+		/* Bridge VLANs can be overwritten with a different
+		 * egress-tagging setting, so make sure to override an untagged
+		 * with a tagged VID if that's going on.
+		 */
+		if (untagged)
+			vlan->untagged |= BIT(port);
+		else
+			vlan->untagged &= ~BIT(port);
+
+		return 0;
+	}
+
+	vlan = kzalloc(sizeof(*vlan), GFP_KERNEL);
+	if (!vlan)
+		return -ENOMEM;
+
+	portmask = BIT(port);
+
+	err = ocelot_vlant_set_mask(ocelot, vid, portmask);
+	if (err) {
+		kfree(vlan);
+		return err;
+	}
+
+	vlan->vid = vid;
+	vlan->portmask = portmask;
+	if (untagged)
+		vlan->untagged = BIT(port);
+	INIT_LIST_HEAD(&vlan->list);
+	list_add_tail(&vlan->list, &ocelot->vlans);
+
+	return 0;
+}
+
+static int ocelot_vlan_member_del(struct ocelot *ocelot, int port, u16 vid)
+{
+	struct ocelot_bridge_vlan *vlan = ocelot_bridge_vlan_find(ocelot, vid);
+	unsigned long portmask;
+	int err;
+
+	if (!vlan)
+		return 0;
+
+	portmask = vlan->portmask & ~BIT(port);
+
+	err = ocelot_vlant_set_mask(ocelot, vid, portmask);
+	if (err)
+		return err;
+
+	vlan->portmask = portmask;
+	if (vlan->portmask)
+		return 0;
+
+	list_del(&vlan->list);
+	kfree(vlan);
+
+	return 0;
+}
+
+static int ocelot_add_vlan_unaware_pvid(struct ocelot *ocelot, int port,
+					const struct net_device *bridge)
+{
+	u16 vid = ocelot_vlan_unaware_pvid(ocelot, bridge);
+
+	return ocelot_vlan_member_add(ocelot, port, vid, true);
+}
+
+static int ocelot_del_vlan_unaware_pvid(struct ocelot *ocelot, int port,
+					const struct net_device *bridge)
+{
+	u16 vid = ocelot_vlan_unaware_pvid(ocelot, bridge);
+
+	return ocelot_vlan_member_del(ocelot, port, vid);
+}
+
+int ocelot_port_vlan_filtering(struct ocelot *ocelot, int port,
+			       bool vlan_aware, struct netlink_ext_ack *extack)
+{
+	struct ocelot_vcap_block *block = &ocelot->block[VCAP_IS1];
+	struct ocelot_port *ocelot_port = ocelot->ports[port];
+	struct ocelot_vcap_filter *filter;
+	int err = 0;
+	u32 val;
+
+	list_for_each_entry(filter, &block->rules, list) {
+		if (filter->ingress_port_mask & BIT(port) &&
+		    filter->action.vid_replace_ena) {
+			NL_SET_ERR_MSG_MOD(extack,
+					   "Cannot change VLAN state with vlan modify rules active");
+			return -EBUSY;
+		}
+	}
+
+	err = ocelot_single_vlan_aware_bridge(ocelot, extack);
+	if (err)
+		return err;
+
+	if (vlan_aware)
+		err = ocelot_del_vlan_unaware_pvid(ocelot, port,
+						   ocelot_port->bridge);
+	else if (ocelot_port->bridge)
+		err = ocelot_add_vlan_unaware_pvid(ocelot, port,
+						   ocelot_port->bridge);
+	if (err)
+		return err;
+
+	ocelot_port->vlan_aware = vlan_aware;
+
+	if (vlan_aware)
+		val = ANA_PORT_VLAN_CFG_VLAN_AWARE_ENA |
+		      ANA_PORT_VLAN_CFG_VLAN_POP_CNT(1);
+	else
+		val = 0;
+	ocelot_rmw_gix(ocelot, val,
+		       ANA_PORT_VLAN_CFG_VLAN_AWARE_ENA |
+		       ANA_PORT_VLAN_CFG_VLAN_POP_CNT_M,
+		       ANA_PORT_VLAN_CFG, port);
+
+	ocelot_port_set_pvid(ocelot, port, ocelot_port->pvid_vlan);
+	ocelot_port_manage_port_tag(ocelot, port);
+
+	return 0;
+}
+EXPORT_SYMBOL(ocelot_port_vlan_filtering);
+
+int ocelot_vlan_prepare(struct ocelot *ocelot, int port, u16 vid, bool pvid,
+			bool untagged, struct netlink_ext_ack *extack)
+{
+	if (untagged) {
+		/* We are adding an egress-tagged VLAN */
+		if (ocelot_port_uses_native_vlan(ocelot, port)) {
+			NL_SET_ERR_MSG_MOD(extack,
+					   "Port with egress-tagged VLANs cannot have more than one egress-untagged (native) VLAN");
+			return -EBUSY;
+		}
+	} else {
+		/* We are adding an egress-tagged VLAN */
+		if (ocelot_port_num_untagged_vlans(ocelot, port) > 1) {
+			NL_SET_ERR_MSG_MOD(extack,
+					   "Port with more than one egress-untagged VLAN cannot have egress-tagged VLANs");
+			return -EBUSY;
+		}
+	}
+
+	if (vid > OCELOT_RSV_VLAN_RANGE_START) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "VLAN range 4000-4095 reserved for VLAN-unaware bridging");
+		return -EBUSY;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(ocelot_vlan_prepare);
+
+int ocelot_vlan_add(struct ocelot *ocelot, int port, u16 vid, bool pvid,
+		    bool untagged)
+{
+	int err;
+
+	/* Ignore VID 0 added to our RX filter by the 8021q module, since
+	 * that collides with OCELOT_STANDALONE_PVID and changes it from
+	 * egress-untagged to egress-tagged.
+	 */
+	if (!vid)
+		return 0;
+
+	err = ocelot_vlan_member_add(ocelot, port, vid, untagged);
+	if (err)
+		return err;
+
+	/* Default ingress vlan classification */
+	if (pvid)
+		ocelot_port_set_pvid(ocelot, port,
+				     ocelot_bridge_vlan_find(ocelot, vid));
+
+	/* Untagged egress vlan clasification */
+	ocelot_port_manage_port_tag(ocelot, port);
+
+	return 0;
+}
+EXPORT_SYMBOL(ocelot_vlan_add);
+
+int ocelot_vlan_del(struct ocelot *ocelot, int port, u16 vid)
+{
+	struct ocelot_port *ocelot_port = ocelot->ports[port];
+	bool del_pvid = false;
+	int err;
+
+	if (!vid)
+		return 0;
+
+	if (ocelot_port->pvid_vlan && ocelot_port->pvid_vlan->vid == vid)
+		del_pvid = true;
+
+	err = ocelot_vlan_member_del(ocelot, port, vid);
+	if (err)
+		return err;
+
+	/* Ingress */
+	if (del_pvid)
+		ocelot_port_set_pvid(ocelot, port, NULL);
+
+	/* Egress */
+	ocelot_port_manage_port_tag(ocelot, port);
+
+	return 0;
+}
+EXPORT_SYMBOL(ocelot_vlan_del);
+
+static void ocelot_vlan_init(struct ocelot *ocelot)
+{
+	unsigned long all_ports = GENMASK(ocelot->num_phys_ports - 1, 0);
+	u16 port, vid;
+
+	/* Clear VLAN table, by default all ports are members of all VLANs */
+	ocelot_write(ocelot, ANA_TABLES_VLANACCESS_CMD_INIT,
+		     ANA_TABLES_VLANACCESS);
+	ocelot_vlant_wait_for_completion(ocelot);
+
+	/* Configure the port VLAN memberships */
+	for (vid = 1; vid < VLAN_N_VID; vid++)
+		ocelot_vlant_set_mask(ocelot, vid, 0);
+
+	/* We need VID 0 to get traffic on standalone ports.
+	 * It is added automatically if the 8021q module is loaded, but we
+	 * can't rely on that since it might not be.
+	 */
+	ocelot_vlant_set_mask(ocelot, OCELOT_STANDALONE_PVID, all_ports);
+
+	/* Set vlan ingress filter mask to all ports but the CPU port by
+	 * default.
+	 */
+	ocelot_write(ocelot, all_ports, ANA_VLANMASK);
+
+	for (port = 0; port < ocelot->num_phys_ports; port++) {
+		ocelot_write_gix(ocelot, 0, REW_PORT_VLAN_CFG, port);
+		ocelot_write_gix(ocelot, 0, REW_TAG_CFG, port);
+	}
+}
+
+static u32 ocelot_read_eq_avail(struct ocelot *ocelot, int port)
+{
+	return ocelot_read_rix(ocelot, QSYS_SW_STATUS, port);
+}
+
+static int ocelot_port_flush(struct ocelot *ocelot, int port)
+{
+	unsigned int pause_ena;
+	int err, val;
+
+	/* Disable dequeuing from the egress queues */
+	ocelot_rmw_rix(ocelot, QSYS_PORT_MODE_DEQUEUE_DIS,
+		       QSYS_PORT_MODE_DEQUEUE_DIS,
+		       QSYS_PORT_MODE, port);
+
+	/* Disable flow control */
+	ocelot_fields_read(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, &pause_ena);
+	ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, 0);
+
+	/* Disable priority flow control */
+	ocelot_fields_write(ocelot, port,
+			    QSYS_SWITCH_PORT_MODE_TX_PFC_ENA, 0);
+
+	/* Wait at least the time it takes to receive a frame of maximum length
+	 * at the port.
+	 * Worst-case delays for 10 kilobyte jumbo frames are:
+	 * 8 ms on a 10M port
+	 * 800 μs on a 100M port
+	 * 80 μs on a 1G port
+	 * 32 μs on a 2.5G port
+	 */
+	usleep_range(8000, 10000);
+
+	/* Disable half duplex backpressure. */
+	ocelot_rmw_rix(ocelot, 0, SYS_FRONT_PORT_MODE_HDX_MODE,
+		       SYS_FRONT_PORT_MODE, port);
+
+	/* Flush the queues associated with the port. */
+	ocelot_rmw_gix(ocelot, REW_PORT_CFG_FLUSH_ENA, REW_PORT_CFG_FLUSH_ENA,
+		       REW_PORT_CFG, port);
+
+	/* Enable dequeuing from the egress queues. */
+	ocelot_rmw_rix(ocelot, 0, QSYS_PORT_MODE_DEQUEUE_DIS, QSYS_PORT_MODE,
+		       port);
+
+	/* Wait until flushing is complete. */
+	err = read_poll_timeout(ocelot_read_eq_avail, val, !val,
+				100, 2000000, false, ocelot, port);
+
+	/* Clear flushing again. */
+	ocelot_rmw_gix(ocelot, 0, REW_PORT_CFG_FLUSH_ENA, REW_PORT_CFG, port);
+
+	/* Re-enable flow control */
+	ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, pause_ena);
+
+	return err;
+}
+
+void ocelot_phylink_mac_link_down(struct ocelot *ocelot, int port,
+				  unsigned int link_an_mode,
+				  phy_interface_t interface,
+				  unsigned long quirks)
+{
+	struct ocelot_port *ocelot_port = ocelot->ports[port];
+	int err;
+
+	ocelot_port->speed = SPEED_UNKNOWN;
+
+	ocelot_port_rmwl(ocelot_port, 0, DEV_MAC_ENA_CFG_RX_ENA,
+			 DEV_MAC_ENA_CFG);
+
+	if (ocelot->ops->cut_through_fwd) {
+		mutex_lock(&ocelot->fwd_domain_lock);
+		ocelot->ops->cut_through_fwd(ocelot);
+		mutex_unlock(&ocelot->fwd_domain_lock);
+	}
+
+	ocelot_fields_write(ocelot, port, QSYS_SWITCH_PORT_MODE_PORT_ENA, 0);
+
+	err = ocelot_port_flush(ocelot, port);
+	if (err)
+		dev_err(ocelot->dev, "failed to flush port %d: %d\n",
+			port, err);
+
+	/* Put the port in reset. */
+	if (interface != PHY_INTERFACE_MODE_QSGMII ||
+	    !(quirks & OCELOT_QUIRK_QSGMII_PORTS_MUST_BE_UP))
+		ocelot_port_rmwl(ocelot_port,
+				 DEV_CLOCK_CFG_MAC_TX_RST |
+				 DEV_CLOCK_CFG_MAC_RX_RST,
+				 DEV_CLOCK_CFG_MAC_TX_RST |
+				 DEV_CLOCK_CFG_MAC_RX_RST,
+				 DEV_CLOCK_CFG);
+}
+EXPORT_SYMBOL_GPL(ocelot_phylink_mac_link_down);
+
+void ocelot_phylink_mac_link_up(struct ocelot *ocelot, int port,
+				struct phy_device *phydev,
+				unsigned int link_an_mode,
+				phy_interface_t interface,
+				int speed, int duplex,
+				bool tx_pause, bool rx_pause,
+				unsigned long quirks)
+{
+	struct ocelot_port *ocelot_port = ocelot->ports[port];
+	int mac_speed, mode = 0;
+	u32 mac_fc_cfg;
+
+	ocelot_port->speed = speed;
+
+	/* The MAC might be integrated in systems where the MAC speed is fixed
+	 * and it's the PCS who is performing the rate adaptation, so we have
+	 * to write "1000Mbps" into the LINK_SPEED field of DEV_CLOCK_CFG
+	 * (which is also its default value).
+	 */
+	if ((quirks & OCELOT_QUIRK_PCS_PERFORMS_RATE_ADAPTATION) ||
+	    speed == SPEED_1000) {
+		mac_speed = OCELOT_SPEED_1000;
+		mode = DEV_MAC_MODE_CFG_GIGA_MODE_ENA;
+	} else if (speed == SPEED_2500) {
+		mac_speed = OCELOT_SPEED_2500;
+		mode = DEV_MAC_MODE_CFG_GIGA_MODE_ENA;
+	} else if (speed == SPEED_100) {
+		mac_speed = OCELOT_SPEED_100;
+	} else {
+		mac_speed = OCELOT_SPEED_10;
+	}
+
+	if (duplex == DUPLEX_FULL)
+		mode |= DEV_MAC_MODE_CFG_FDX_ENA;
+
+	ocelot_port_writel(ocelot_port, mode, DEV_MAC_MODE_CFG);
+
+	/* Take port out of reset by clearing the MAC_TX_RST, MAC_RX_RST and
+	 * PORT_RST bits in DEV_CLOCK_CFG.
+	 */
+	ocelot_port_writel(ocelot_port, DEV_CLOCK_CFG_LINK_SPEED(mac_speed),
+			   DEV_CLOCK_CFG);
+
+	switch (speed) {
+	case SPEED_10:
+		mac_fc_cfg = SYS_MAC_FC_CFG_FC_LINK_SPEED(OCELOT_SPEED_10);
+		break;
+	case SPEED_100:
+		mac_fc_cfg = SYS_MAC_FC_CFG_FC_LINK_SPEED(OCELOT_SPEED_100);
+		break;
+	case SPEED_1000:
+	case SPEED_2500:
+		mac_fc_cfg = SYS_MAC_FC_CFG_FC_LINK_SPEED(OCELOT_SPEED_1000);
+		break;
+	default:
+		dev_err(ocelot->dev, "Unsupported speed on port %d: %d\n",
+			port, speed);
+		return;
+	}
+
+	/* Handle RX pause in all cases, with 2500base-X this is used for rate
+	 * adaptation.
+	 */
+	mac_fc_cfg |= SYS_MAC_FC_CFG_RX_FC_ENA;
+
+	if (tx_pause)
+		mac_fc_cfg |= SYS_MAC_FC_CFG_TX_FC_ENA |
+			      SYS_MAC_FC_CFG_PAUSE_VAL_CFG(0xffff) |
+			      SYS_MAC_FC_CFG_FC_LATENCY_CFG(0x7) |
+			      SYS_MAC_FC_CFG_ZERO_PAUSE_ENA;
+
+	/* Flow control. Link speed is only used here to evaluate the time
+	 * specification in incoming pause frames.
+	 */
+	ocelot_write_rix(ocelot, mac_fc_cfg, SYS_MAC_FC_CFG, port);
+
+	ocelot_write_rix(ocelot, 0, ANA_POL_FLOWC, port);
+
+	/* Don't attempt to send PAUSE frames on the NPI port, it's broken */
+	if (port != ocelot->npi)
+		ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA,
+				    tx_pause);
+
+	/* Undo the effects of ocelot_phylink_mac_link_down:
+	 * enable MAC module
+	 */
+	ocelot_port_writel(ocelot_port, DEV_MAC_ENA_CFG_RX_ENA |
+			   DEV_MAC_ENA_CFG_TX_ENA, DEV_MAC_ENA_CFG);
+
+	/* If the port supports cut-through forwarding, update the masks before
+	 * enabling forwarding on the port.
+	 */
+	if (ocelot->ops->cut_through_fwd) {
+		mutex_lock(&ocelot->fwd_domain_lock);
+		ocelot->ops->cut_through_fwd(ocelot);
+		mutex_unlock(&ocelot->fwd_domain_lock);
+	}
+
+	/* Core: Enable port for frame transfer */
+	ocelot_fields_write(ocelot, port,
+			    QSYS_SWITCH_PORT_MODE_PORT_ENA, 1);
+}
+EXPORT_SYMBOL_GPL(ocelot_phylink_mac_link_up);
+
+static int ocelot_rx_frame_word(struct ocelot *ocelot, u8 grp, bool ifh,
+				u32 *rval)
+{
+	u32 bytes_valid, val;
+
+	val = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
+	if (val == XTR_NOT_READY) {
+		if (ifh)
+			return -EIO;
+
+		do {
+			val = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
+		} while (val == XTR_NOT_READY);
+	}
+
+	switch (val) {
+	case XTR_ABORT:
+		return -EIO;
+	case XTR_EOF_0:
+	case XTR_EOF_1:
+	case XTR_EOF_2:
+	case XTR_EOF_3:
+	case XTR_PRUNED:
+		bytes_valid = XTR_VALID_BYTES(val);
+		val = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
+		if (val == XTR_ESCAPE)
+			*rval = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
+		else
+			*rval = val;
+
+		return bytes_valid;
+	case XTR_ESCAPE:
+		*rval = ocelot_read_rix(ocelot, QS_XTR_RD, grp);
+
+		return 4;
+	default:
+		*rval = val;
+
+		return 4;
+	}
+}
+
+static int ocelot_xtr_poll_xfh(struct ocelot *ocelot, int grp, u32 *xfh)
+{
+	int i, err = 0;
+
+	for (i = 0; i < OCELOT_TAG_LEN / 4; i++) {
+		err = ocelot_rx_frame_word(ocelot, grp, true, &xfh[i]);
+		if (err != 4)
+			return (err < 0) ? err : -EIO;
+	}
+
+	return 0;
+}
+
+void ocelot_ptp_rx_timestamp(struct ocelot *ocelot, struct sk_buff *skb,
+			     u64 timestamp)
+{
+	struct skb_shared_hwtstamps *shhwtstamps;
+	u64 tod_in_ns, full_ts_in_ns;
+	struct timespec64 ts;
+
+	ocelot_ptp_gettime64(&ocelot->ptp_info, &ts);
+
+	tod_in_ns = ktime_set(ts.tv_sec, ts.tv_nsec);
+	if ((tod_in_ns & 0xffffffff) < timestamp)
+		full_ts_in_ns = (((tod_in_ns >> 32) - 1) << 32) |
+				timestamp;
+	else
+		full_ts_in_ns = (tod_in_ns & GENMASK_ULL(63, 32)) |
+				timestamp;
+
+	shhwtstamps = skb_hwtstamps(skb);
+	memset(shhwtstamps, 0, sizeof(struct skb_shared_hwtstamps));
+	shhwtstamps->hwtstamp = full_ts_in_ns;
+}
+EXPORT_SYMBOL(ocelot_ptp_rx_timestamp);
+
+int ocelot_xtr_poll_frame(struct ocelot *ocelot, int grp, struct sk_buff **nskb)
+{
+	u64 timestamp, src_port, len;
+	u32 xfh[OCELOT_TAG_LEN / 4];
+	struct net_device *dev;
+	struct sk_buff *skb;
+	int sz, buf_len;
+	u32 val, *buf;
+	int err;
+
+	err = ocelot_xtr_poll_xfh(ocelot, grp, xfh);
+	if (err)
+		return err;
+
+	ocelot_xfh_get_src_port(xfh, &src_port);
+	ocelot_xfh_get_len(xfh, &len);
+	ocelot_xfh_get_rew_val(xfh, &timestamp);
+
+	if (WARN_ON(src_port >= ocelot->num_phys_ports))
+		return -EINVAL;
+
+	dev = ocelot->ops->port_to_netdev(ocelot, src_port);
+	if (!dev)
+		return -EINVAL;
+
+	skb = netdev_alloc_skb(dev, len);
+	if (unlikely(!skb)) {
+		netdev_err(dev, "Unable to allocate sk_buff\n");
+		return -ENOMEM;
+	}
+
+	buf_len = len - ETH_FCS_LEN;
+	buf = (u32 *)skb_put(skb, buf_len);
+
+	len = 0;
+	do {
+		sz = ocelot_rx_frame_word(ocelot, grp, false, &val);
+		if (sz < 0) {
+			err = sz;
+			goto out_free_skb;
+		}
+		*buf++ = val;
+		len += sz;
+	} while (len < buf_len);
+
+	/* Read the FCS */
+	sz = ocelot_rx_frame_word(ocelot, grp, false, &val);
+	if (sz < 0) {
+		err = sz;
+		goto out_free_skb;
+	}
+
+	/* Update the statistics if part of the FCS was read before */
+	len -= ETH_FCS_LEN - sz;
+
+	if (unlikely(dev->features & NETIF_F_RXFCS)) {
+		buf = (u32 *)skb_put(skb, ETH_FCS_LEN);
+		*buf = val;
+	}
+
+	if (ocelot->ptp)
+		ocelot_ptp_rx_timestamp(ocelot, skb, timestamp);
+
+	/* Everything we see on an interface that is in the HW bridge
+	 * has already been forwarded.
+	 */
+	if (ocelot->ports[src_port]->bridge)
+		skb->offload_fwd_mark = 1;
+
+	skb->protocol = eth_type_trans(skb, dev);
+
+	*nskb = skb;
+
+	return 0;
+
+out_free_skb:
+	kfree_skb(skb);
+	return err;
+}
+EXPORT_SYMBOL(ocelot_xtr_poll_frame);
+
+bool ocelot_can_inject(struct ocelot *ocelot, int grp)
+{
+	u32 val = ocelot_read(ocelot, QS_INJ_STATUS);
+
+	if (!(val & QS_INJ_STATUS_FIFO_RDY(BIT(grp))))
+		return false;
+	if (val & QS_INJ_STATUS_WMARK_REACHED(BIT(grp)))
+		return false;
+
+	return true;
+}
+EXPORT_SYMBOL(ocelot_can_inject);
+
+void ocelot_ifh_port_set(void *ifh, int port, u32 rew_op, u32 vlan_tag)
+{
+	ocelot_ifh_set_bypass(ifh, 1);
+	ocelot_ifh_set_dest(ifh, BIT_ULL(port));
+	ocelot_ifh_set_tag_type(ifh, IFH_TAG_TYPE_C);
+	if (vlan_tag)
+		ocelot_ifh_set_vlan_tci(ifh, vlan_tag);
+	if (rew_op)
+		ocelot_ifh_set_rew_op(ifh, rew_op);
+}
+EXPORT_SYMBOL(ocelot_ifh_port_set);
+
+void ocelot_port_inject_frame(struct ocelot *ocelot, int port, int grp,
+			      u32 rew_op, struct sk_buff *skb)
+{
+	u32 ifh[OCELOT_TAG_LEN / 4] = {0};
+	unsigned int i, count, last;
+
+	ocelot_write_rix(ocelot, QS_INJ_CTRL_GAP_SIZE(1) |
+			 QS_INJ_CTRL_SOF, QS_INJ_CTRL, grp);
+
+	ocelot_ifh_port_set(ifh, port, rew_op, skb_vlan_tag_get(skb));
+
+	for (i = 0; i < OCELOT_TAG_LEN / 4; i++)
+		ocelot_write_rix(ocelot, ifh[i], QS_INJ_WR, grp);
+
+	count = DIV_ROUND_UP(skb->len, 4);
+	last = skb->len % 4;
+	for (i = 0; i < count; i++)
+		ocelot_write_rix(ocelot, ((u32 *)skb->data)[i], QS_INJ_WR, grp);
+
+	/* Add padding */
+	while (i < (OCELOT_BUFFER_CELL_SZ / 4)) {
+		ocelot_write_rix(ocelot, 0, QS_INJ_WR, grp);
+		i++;
+	}
+
+	/* Indicate EOF and valid bytes in last word */
+	ocelot_write_rix(ocelot, QS_INJ_CTRL_GAP_SIZE(1) |
+			 QS_INJ_CTRL_VLD_BYTES(skb->len < OCELOT_BUFFER_CELL_SZ ? 0 : last) |
+			 QS_INJ_CTRL_EOF,
+			 QS_INJ_CTRL, grp);
+
+	/* Add dummy CRC */
+	ocelot_write_rix(ocelot, 0, QS_INJ_WR, grp);
+	skb_tx_timestamp(skb);
+
+	skb->dev->stats.tx_packets++;
+	skb->dev->stats.tx_bytes += skb->len;
+}
+EXPORT_SYMBOL(ocelot_port_inject_frame);
+
+void ocelot_drain_cpu_queue(struct ocelot *ocelot, int grp)
+{
+	while (ocelot_read(ocelot, QS_XTR_DATA_PRESENT) & BIT(grp))
+		ocelot_read_rix(ocelot, QS_XTR_RD, grp);
+}
+EXPORT_SYMBOL(ocelot_drain_cpu_queue);
+
+int ocelot_fdb_add(struct ocelot *ocelot, int port, const unsigned char *addr,
+		   u16 vid, const struct net_device *bridge)
+{
+	if (!vid)
+		vid = ocelot_vlan_unaware_pvid(ocelot, bridge);
+
+	return ocelot_mact_learn(ocelot, port, addr, vid, ENTRYTYPE_LOCKED);
+}
+EXPORT_SYMBOL(ocelot_fdb_add);
+
+int ocelot_fdb_del(struct ocelot *ocelot, int port, const unsigned char *addr,
+		   u16 vid, const struct net_device *bridge)
+{
+	if (!vid)
+		vid = ocelot_vlan_unaware_pvid(ocelot, bridge);
+
+	return ocelot_mact_forget(ocelot, addr, vid);
+}
+EXPORT_SYMBOL(ocelot_fdb_del);
+
+/* Caller must hold &ocelot->mact_lock */
+static int ocelot_mact_read(struct ocelot *ocelot, int port, int row, int col,
+			    struct ocelot_mact_entry *entry)
+{
+	u32 val, dst, macl, mach;
+	char mac[ETH_ALEN];
+
+	/* Set row and column to read from */
+	ocelot_field_write(ocelot, ANA_TABLES_MACTINDX_M_INDEX, row);
+	ocelot_field_write(ocelot, ANA_TABLES_MACTINDX_BUCKET, col);
+
+	/* Issue a read command */
+	ocelot_write(ocelot,
+		     ANA_TABLES_MACACCESS_MAC_TABLE_CMD(MACACCESS_CMD_READ),
+		     ANA_TABLES_MACACCESS);
+
+	if (ocelot_mact_wait_for_completion(ocelot))
+		return -ETIMEDOUT;
+
+	/* Read the entry flags */
+	val = ocelot_read(ocelot, ANA_TABLES_MACACCESS);
+	if (!(val & ANA_TABLES_MACACCESS_VALID))
+		return -EINVAL;
+
+	/* If the entry read has another port configured as its destination,
+	 * do not report it.
+	 */
+	dst = (val & ANA_TABLES_MACACCESS_DEST_IDX_M) >> 3;
+	if (dst != port)
+		return -EINVAL;
+
+	/* Get the entry's MAC address and VLAN id */
+	macl = ocelot_read(ocelot, ANA_TABLES_MACLDATA);
+	mach = ocelot_read(ocelot, ANA_TABLES_MACHDATA);
+
+	mac[0] = (mach >> 8)  & 0xff;
+	mac[1] = (mach >> 0)  & 0xff;
+	mac[2] = (macl >> 24) & 0xff;
+	mac[3] = (macl >> 16) & 0xff;
+	mac[4] = (macl >> 8)  & 0xff;
+	mac[5] = (macl >> 0)  & 0xff;
+
+	entry->vid = (mach >> 16) & 0xfff;
+	ether_addr_copy(entry->mac, mac);
+
+	return 0;
+}
+
+int ocelot_mact_flush(struct ocelot *ocelot, int port)
+{
+	int err;
+
+	mutex_lock(&ocelot->mact_lock);
+
+	/* Program ageing filter for a single port */
+	ocelot_write(ocelot, ANA_ANAGEFIL_PID_EN | ANA_ANAGEFIL_PID_VAL(port),
+		     ANA_ANAGEFIL);
+
+	/* Flushing dynamic FDB entries requires two successive age scans */
+	ocelot_write(ocelot,
+		     ANA_TABLES_MACACCESS_MAC_TABLE_CMD(MACACCESS_CMD_AGE),
+		     ANA_TABLES_MACACCESS);
+
+	err = ocelot_mact_wait_for_completion(ocelot);
+	if (err) {
+		mutex_unlock(&ocelot->mact_lock);
+		return err;
+	}
+
+	/* And second... */
+	ocelot_write(ocelot,
+		     ANA_TABLES_MACACCESS_MAC_TABLE_CMD(MACACCESS_CMD_AGE),
+		     ANA_TABLES_MACACCESS);
+
+	err = ocelot_mact_wait_for_completion(ocelot);
+
+	/* Restore ageing filter */
+	ocelot_write(ocelot, 0, ANA_ANAGEFIL);
+
+	mutex_unlock(&ocelot->mact_lock);
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(ocelot_mact_flush);
+
+int ocelot_fdb_dump(struct ocelot *ocelot, int port,
+		    dsa_fdb_dump_cb_t *cb, void *data)
+{
+	int err = 0;
+	int i, j;
+
+	/* We could take the lock just around ocelot_mact_read, but doing so
+	 * thousands of times in a row seems rather pointless and inefficient.
+	 */
+	mutex_lock(&ocelot->mact_lock);
+
+	/* Loop through all the mac tables entries. */
+	for (i = 0; i < ocelot->num_mact_rows; i++) {
+		for (j = 0; j < 4; j++) {
+			struct ocelot_mact_entry entry;
+			bool is_static;
+
+			err = ocelot_mact_read(ocelot, port, i, j, &entry);
+			/* If the entry is invalid (wrong port, invalid...),
+			 * skip it.
+			 */
+			if (err == -EINVAL)
+				continue;
+			else if (err)
+				break;
+
+			is_static = (entry.type == ENTRYTYPE_LOCKED);
+
+			/* Hide the reserved VLANs used for
+			 * VLAN-unaware bridging.
+			 */
+			if (entry.vid > OCELOT_RSV_VLAN_RANGE_START)
+				entry.vid = 0;
+
+			err = cb(entry.mac, entry.vid, is_static, data);
+			if (err)
+				break;
+		}
+	}
+
+	mutex_unlock(&ocelot->mact_lock);
+
+	return err;
+}
+EXPORT_SYMBOL(ocelot_fdb_dump);
+
+int ocelot_trap_add(struct ocelot *ocelot, int port,
+		    unsigned long cookie, bool take_ts,
+		    void (*populate)(struct ocelot_vcap_filter *f))
+{
+	struct ocelot_vcap_block *block_vcap_is2;
+	struct ocelot_vcap_filter *trap;
+	bool new = false;
+	int err;
+
+	block_vcap_is2 = &ocelot->block[VCAP_IS2];
+
+	trap = ocelot_vcap_block_find_filter_by_id(block_vcap_is2, cookie,
+						   false);
+	if (!trap) {
+		trap = kzalloc(sizeof(*trap), GFP_KERNEL);
+		if (!trap)
+			return -ENOMEM;
+
+		populate(trap);
+		trap->prio = 1;
+		trap->id.cookie = cookie;
+		trap->id.tc_offload = false;
+		trap->block_id = VCAP_IS2;
+		trap->type = OCELOT_VCAP_FILTER_OFFLOAD;
+		trap->lookup = 0;
+		trap->action.cpu_copy_ena = true;
+		trap->action.mask_mode = OCELOT_MASK_MODE_PERMIT_DENY;
+		trap->action.port_mask = 0;
+		trap->take_ts = take_ts;
+		trap->is_trap = true;
+		new = true;
+	}
+
+	trap->ingress_port_mask |= BIT(port);
+
+	if (new)
+		err = ocelot_vcap_filter_add(ocelot, trap, NULL);
+	else
+		err = ocelot_vcap_filter_replace(ocelot, trap);
+	if (err) {
+		trap->ingress_port_mask &= ~BIT(port);
+		if (!trap->ingress_port_mask)
+			kfree(trap);
+		return err;
+	}
+
+	return 0;
+}
+
+int ocelot_trap_del(struct ocelot *ocelot, int port, unsigned long cookie)
+{
+	struct ocelot_vcap_block *block_vcap_is2;
+	struct ocelot_vcap_filter *trap;
+
+	block_vcap_is2 = &ocelot->block[VCAP_IS2];
+
+	trap = ocelot_vcap_block_find_filter_by_id(block_vcap_is2, cookie,
+						   false);
+	if (!trap)
+		return 0;
+
+	trap->ingress_port_mask &= ~BIT(port);
+	if (!trap->ingress_port_mask)
+		return ocelot_vcap_filter_del(ocelot, trap);
+
+	return ocelot_vcap_filter_replace(ocelot, trap);
+}
+
+static u32 ocelot_get_bond_mask(struct ocelot *ocelot, struct net_device *bond)
+{
+	u32 mask = 0;
+	int port;
+
+	lockdep_assert_held(&ocelot->fwd_domain_lock);
+
+	for (port = 0; port < ocelot->num_phys_ports; port++) {
+		struct ocelot_port *ocelot_port = ocelot->ports[port];
+
+		if (!ocelot_port)
+			continue;
+
+		if (ocelot_port->bond == bond)
+			mask |= BIT(port);
+	}
+
+	return mask;
+}
+
+/* The logical port number of a LAG is equal to the lowest numbered physical
+ * port ID present in that LAG. It may change if that port ever leaves the LAG.
+ */
+int ocelot_bond_get_id(struct ocelot *ocelot, struct net_device *bond)
+{
+	int bond_mask = ocelot_get_bond_mask(ocelot, bond);
+
+	if (!bond_mask)
+		return -ENOENT;
+
+	return __ffs(bond_mask);
+}
+EXPORT_SYMBOL_GPL(ocelot_bond_get_id);
+
+/* Returns the mask of user ports assigned to this DSA tag_8021q CPU port.
+ * Note that when CPU ports are in a LAG, the user ports are assigned to the
+ * 'primary' CPU port, the one whose physical port number gives the logical
+ * port number of the LAG.
+ *
+ * We leave PGID_SRC poorly configured for the 'secondary' CPU port in the LAG
+ * (to which no user port is assigned), but it appears that forwarding from
+ * this secondary CPU port looks at the PGID_SRC associated with the logical
+ * port ID that it's assigned to, which *is* configured properly.
+ */
+static u32 ocelot_dsa_8021q_cpu_assigned_ports(struct ocelot *ocelot,
+					       struct ocelot_port *cpu)
+{
+	u32 mask = 0;
+	int port;
+
+	for (port = 0; port < ocelot->num_phys_ports; port++) {
+		struct ocelot_port *ocelot_port = ocelot->ports[port];
+
+		if (!ocelot_port)
+			continue;
+
+		if (ocelot_port->dsa_8021q_cpu == cpu)
+			mask |= BIT(port);
+	}
+
+	if (cpu->bond)
+		mask &= ~ocelot_get_bond_mask(ocelot, cpu->bond);
+
+	return mask;
+}
+
+/* Returns the DSA tag_8021q CPU port that the given port is assigned to,
+ * or the bit mask of CPU ports if said CPU port is in a LAG.
+ */
+u32 ocelot_port_assigned_dsa_8021q_cpu_mask(struct ocelot *ocelot, int port)
+{
+	struct ocelot_port *ocelot_port = ocelot->ports[port];
+	struct ocelot_port *cpu_port = ocelot_port->dsa_8021q_cpu;
+
+	if (!cpu_port)
+		return 0;
+
+	if (cpu_port->bond)
+		return ocelot_get_bond_mask(ocelot, cpu_port->bond);
+
+	return BIT(cpu_port->index);
+}
+EXPORT_SYMBOL_GPL(ocelot_port_assigned_dsa_8021q_cpu_mask);
+
+u32 ocelot_get_bridge_fwd_mask(struct ocelot *ocelot, int src_port)
+{
+	struct ocelot_port *ocelot_port = ocelot->ports[src_port];
+	const struct net_device *bridge;
+	u32 mask = 0;
+	int port;
+
+	if (!ocelot_port || ocelot_port->stp_state != BR_STATE_FORWARDING)
+		return 0;
+
+	bridge = ocelot_port->bridge;
+	if (!bridge)
+		return 0;
+
+	for (port = 0; port < ocelot->num_phys_ports; port++) {
+		ocelot_port = ocelot->ports[port];
+
+		if (!ocelot_port)
+			continue;
+
+		if (ocelot_port->stp_state == BR_STATE_FORWARDING &&
+		    ocelot_port->bridge == bridge)
+			mask |= BIT(port);
+	}
+
+	return mask;
+}
+EXPORT_SYMBOL_GPL(ocelot_get_bridge_fwd_mask);
+
+static void ocelot_apply_bridge_fwd_mask(struct ocelot *ocelot, bool joining)
+{
+	int port;
+
+	lockdep_assert_held(&ocelot->fwd_domain_lock);
+
+	/* If cut-through forwarding is supported, update the masks before a
+	 * port joins the forwarding domain, to avoid potential underruns if it
+	 * has the highest speed from the new domain.
+	 */
+	if (joining && ocelot->ops->cut_through_fwd)
+		ocelot->ops->cut_through_fwd(ocelot);
+
+	/* Apply FWD mask. The loop is needed to add/remove the current port as
+	 * a source for the other ports.
+	 */
+	for (port = 0; port < ocelot->num_phys_ports; port++) {
+		struct ocelot_port *ocelot_port = ocelot->ports[port];
+		unsigned long mask;
+
+		if (!ocelot_port) {
+			/* Unused ports can't send anywhere */
+			mask = 0;
+		} else if (ocelot_port->is_dsa_8021q_cpu) {
+			/* The DSA tag_8021q CPU ports need to be able to
+			 * forward packets to all ports assigned to them.
+			 */
+			mask = ocelot_dsa_8021q_cpu_assigned_ports(ocelot,
+								   ocelot_port);
+		} else if (ocelot_port->bridge) {
+			struct net_device *bond = ocelot_port->bond;
+
+			mask = ocelot_get_bridge_fwd_mask(ocelot, port);
+			mask &= ~BIT(port);
+
+			mask |= ocelot_port_assigned_dsa_8021q_cpu_mask(ocelot,
+									port);
+
+			if (bond)
+				mask &= ~ocelot_get_bond_mask(ocelot, bond);
+		} else {
+			/* Standalone ports forward only to DSA tag_8021q CPU
+			 * ports (if those exist), or to the hardware CPU port
+			 * module otherwise.
+			 */
+			mask = ocelot_port_assigned_dsa_8021q_cpu_mask(ocelot,
+								       port);
+		}
+
+		ocelot_write_rix(ocelot, mask, ANA_PGID_PGID, PGID_SRC + port);
+	}
+
+	/* If cut-through forwarding is supported and a port is leaving, there
+	 * is a chance that cut-through was disabled on the other ports due to
+	 * the port which is leaving (it has a higher link speed). We need to
+	 * update the cut-through masks of the remaining ports no earlier than
+	 * after the port has left, to prevent underruns from happening between
+	 * the cut-through update and the forwarding domain update.
+	 */
+	if (!joining && ocelot->ops->cut_through_fwd)
+		ocelot->ops->cut_through_fwd(ocelot);
+}
+
+/* Update PGID_CPU which is the destination port mask used for whitelisting
+ * unicast addresses filtered towards the host. In the normal and NPI modes,
+ * this points to the analyzer entry for the CPU port module, while in DSA
+ * tag_8021q mode, it is a bit mask of all active CPU ports.
+ * PGID_SRC will take care of forwarding a packet from one user port to
+ * no more than a single CPU port.
+ */
+static void ocelot_update_pgid_cpu(struct ocelot *ocelot)
+{
+	int pgid_cpu = 0;
+	int port;
+
+	for (port = 0; port < ocelot->num_phys_ports; port++) {
+		struct ocelot_port *ocelot_port = ocelot->ports[port];
+
+		if (!ocelot_port || !ocelot_port->is_dsa_8021q_cpu)
+			continue;
+
+		pgid_cpu |= BIT(port);
+	}
+
+	if (!pgid_cpu)
+		pgid_cpu = BIT(ocelot->num_phys_ports);
+
+	ocelot_write_rix(ocelot, pgid_cpu, ANA_PGID_PGID, PGID_CPU);
+}
+
+void ocelot_port_setup_dsa_8021q_cpu(struct ocelot *ocelot, int cpu)
+{
+	struct ocelot_port *cpu_port = ocelot->ports[cpu];
+	u16 vid;
+
+	mutex_lock(&ocelot->fwd_domain_lock);
+
+	cpu_port->is_dsa_8021q_cpu = true;
+
+	for (vid = OCELOT_RSV_VLAN_RANGE_START; vid < VLAN_N_VID; vid++)
+		ocelot_vlan_member_add(ocelot, cpu, vid, true);
+
+	ocelot_update_pgid_cpu(ocelot);
+
+	mutex_unlock(&ocelot->fwd_domain_lock);
+}
+EXPORT_SYMBOL_GPL(ocelot_port_setup_dsa_8021q_cpu);
+
+void ocelot_port_teardown_dsa_8021q_cpu(struct ocelot *ocelot, int cpu)
+{
+	struct ocelot_port *cpu_port = ocelot->ports[cpu];
+	u16 vid;
+
+	mutex_lock(&ocelot->fwd_domain_lock);
+
+	cpu_port->is_dsa_8021q_cpu = false;
+
+	for (vid = OCELOT_RSV_VLAN_RANGE_START; vid < VLAN_N_VID; vid++)
+		ocelot_vlan_member_del(ocelot, cpu_port->index, vid);
+
+	ocelot_update_pgid_cpu(ocelot);
+
+	mutex_unlock(&ocelot->fwd_domain_lock);
+}
+EXPORT_SYMBOL_GPL(ocelot_port_teardown_dsa_8021q_cpu);
+
+void ocelot_port_assign_dsa_8021q_cpu(struct ocelot *ocelot, int port,
+				      int cpu)
+{
+	struct ocelot_port *cpu_port = ocelot->ports[cpu];
+
+	mutex_lock(&ocelot->fwd_domain_lock);
+
+	ocelot->ports[port]->dsa_8021q_cpu = cpu_port;
+	ocelot_apply_bridge_fwd_mask(ocelot, true);
+
+	mutex_unlock(&ocelot->fwd_domain_lock);
+}
+EXPORT_SYMBOL_GPL(ocelot_port_assign_dsa_8021q_cpu);
+
+void ocelot_port_unassign_dsa_8021q_cpu(struct ocelot *ocelot, int port)
+{
+	mutex_lock(&ocelot->fwd_domain_lock);
+
+	ocelot->ports[port]->dsa_8021q_cpu = NULL;
+	ocelot_apply_bridge_fwd_mask(ocelot, true);
+
+	mutex_unlock(&ocelot->fwd_domain_lock);
+}
+EXPORT_SYMBOL_GPL(ocelot_port_unassign_dsa_8021q_cpu);
+
+void ocelot_bridge_stp_state_set(struct ocelot *ocelot, int port, u8 state)
+{
+	struct ocelot_port *ocelot_port = ocelot->ports[port];
+	u32 learn_ena = 0;
+
+	mutex_lock(&ocelot->fwd_domain_lock);
+
+	ocelot_port->stp_state = state;
+
+	if ((state == BR_STATE_LEARNING || state == BR_STATE_FORWARDING) &&
+	    ocelot_port->learn_ena)
+		learn_ena = ANA_PORT_PORT_CFG_LEARN_ENA;
+
+	ocelot_rmw_gix(ocelot, learn_ena, ANA_PORT_PORT_CFG_LEARN_ENA,
+		       ANA_PORT_PORT_CFG, port);
+
+	ocelot_apply_bridge_fwd_mask(ocelot, state == BR_STATE_FORWARDING);
+
+	mutex_unlock(&ocelot->fwd_domain_lock);
+}
+EXPORT_SYMBOL(ocelot_bridge_stp_state_set);
+
+void ocelot_set_ageing_time(struct ocelot *ocelot, unsigned int msecs)
+{
+	unsigned int age_period = ANA_AUTOAGE_AGE_PERIOD(msecs / 2000);
+
+	/* Setting AGE_PERIOD to zero effectively disables automatic aging,
+	 * which is clearly not what our intention is. So avoid that.
+	 */
+	if (!age_period)
+		age_period = 1;
+
+	ocelot_rmw(ocelot, age_period, ANA_AUTOAGE_AGE_PERIOD_M, ANA_AUTOAGE);
+}
+EXPORT_SYMBOL(ocelot_set_ageing_time);
+
+static struct ocelot_multicast *ocelot_multicast_get(struct ocelot *ocelot,
+						     const unsigned char *addr,
+						     u16 vid)
+{
+	struct ocelot_multicast *mc;
+
+	list_for_each_entry(mc, &ocelot->multicast, list) {
+		if (ether_addr_equal(mc->addr, addr) && mc->vid == vid)
+			return mc;
+	}
+
+	return NULL;
+}
+
+static enum macaccess_entry_type ocelot_classify_mdb(const unsigned char *addr)
+{
+	if (addr[0] == 0x01 && addr[1] == 0x00 && addr[2] == 0x5e)
+		return ENTRYTYPE_MACv4;
+	if (addr[0] == 0x33 && addr[1] == 0x33)
+		return ENTRYTYPE_MACv6;
+	return ENTRYTYPE_LOCKED;
+}
+
+static struct ocelot_pgid *ocelot_pgid_alloc(struct ocelot *ocelot, int index,
+					     unsigned long ports)
+{
+	struct ocelot_pgid *pgid;
+
+	pgid = kzalloc(sizeof(*pgid), GFP_KERNEL);
+	if (!pgid)
+		return ERR_PTR(-ENOMEM);
+
+	pgid->ports = ports;
+	pgid->index = index;
+	refcount_set(&pgid->refcount, 1);
+	list_add_tail(&pgid->list, &ocelot->pgids);
+
+	return pgid;
+}
+
+static void ocelot_pgid_free(struct ocelot *ocelot, struct ocelot_pgid *pgid)
+{
+	if (!refcount_dec_and_test(&pgid->refcount))
+		return;
+
+	list_del(&pgid->list);
+	kfree(pgid);
+}
+
+static struct ocelot_pgid *ocelot_mdb_get_pgid(struct ocelot *ocelot,
+					       const struct ocelot_multicast *mc)
+{
+	struct ocelot_pgid *pgid;
+	int index;
+
+	/* According to VSC7514 datasheet 3.9.1.5 IPv4 Multicast Entries and
+	 * 3.9.1.6 IPv6 Multicast Entries, "Instead of a lookup in the
+	 * destination mask table (PGID), the destination set is programmed as
+	 * part of the entry MAC address.", and the DEST_IDX is set to 0.
+	 */
+	if (mc->entry_type == ENTRYTYPE_MACv4 ||
+	    mc->entry_type == ENTRYTYPE_MACv6)
+		return ocelot_pgid_alloc(ocelot, 0, mc->ports);
+
+	list_for_each_entry(pgid, &ocelot->pgids, list) {
+		/* When searching for a nonreserved multicast PGID, ignore the
+		 * dummy PGID of zero that we have for MACv4/MACv6 entries
+		 */
+		if (pgid->index && pgid->ports == mc->ports) {
+			refcount_inc(&pgid->refcount);
+			return pgid;
+		}
+	}
+
+	/* Search for a free index in the nonreserved multicast PGID area */
+	for_each_nonreserved_multicast_dest_pgid(ocelot, index) {
+		bool used = false;
+
+		list_for_each_entry(pgid, &ocelot->pgids, list) {
+			if (pgid->index == index) {
+				used = true;
+				break;
+			}
+		}
+
+		if (!used)
+			return ocelot_pgid_alloc(ocelot, index, mc->ports);
+	}
+
+	return ERR_PTR(-ENOSPC);
+}
+
+static void ocelot_encode_ports_to_mdb(unsigned char *addr,
+				       struct ocelot_multicast *mc)
+{
+	ether_addr_copy(addr, mc->addr);
+
+	if (mc->entry_type == ENTRYTYPE_MACv4) {
+		addr[0] = 0;
+		addr[1] = mc->ports >> 8;
+		addr[2] = mc->ports & 0xff;
+	} else if (mc->entry_type == ENTRYTYPE_MACv6) {
+		addr[0] = mc->ports >> 8;
+		addr[1] = mc->ports & 0xff;
+	}
+}
+
+int ocelot_port_mdb_add(struct ocelot *ocelot, int port,
+			const struct switchdev_obj_port_mdb *mdb,
+			const struct net_device *bridge)
+{
+	unsigned char addr[ETH_ALEN];
+	struct ocelot_multicast *mc;
+	struct ocelot_pgid *pgid;
+	u16 vid = mdb->vid;
+
+	if (!vid)
+		vid = ocelot_vlan_unaware_pvid(ocelot, bridge);
+
+	mc = ocelot_multicast_get(ocelot, mdb->addr, vid);
+	if (!mc) {
+		/* New entry */
+		mc = devm_kzalloc(ocelot->dev, sizeof(*mc), GFP_KERNEL);
+		if (!mc)
+			return -ENOMEM;
+
+		mc->entry_type = ocelot_classify_mdb(mdb->addr);
+		ether_addr_copy(mc->addr, mdb->addr);
+		mc->vid = vid;
+
+		list_add_tail(&mc->list, &ocelot->multicast);
+	} else {
+		/* Existing entry. Clean up the current port mask from
+		 * hardware now, because we'll be modifying it.
+		 */
+		ocelot_pgid_free(ocelot, mc->pgid);
+		ocelot_encode_ports_to_mdb(addr, mc);
+		ocelot_mact_forget(ocelot, addr, vid);
+	}
+
+	mc->ports |= BIT(port);
+
+	pgid = ocelot_mdb_get_pgid(ocelot, mc);
+	if (IS_ERR(pgid)) {
+		dev_err(ocelot->dev,
+			"Cannot allocate PGID for mdb %pM vid %d\n",
+			mc->addr, mc->vid);
+		devm_kfree(ocelot->dev, mc);
+		return PTR_ERR(pgid);
+	}
+	mc->pgid = pgid;
+
+	ocelot_encode_ports_to_mdb(addr, mc);
+
+	if (mc->entry_type != ENTRYTYPE_MACv4 &&
+	    mc->entry_type != ENTRYTYPE_MACv6)
+		ocelot_write_rix(ocelot, pgid->ports, ANA_PGID_PGID,
+				 pgid->index);
+
+	return ocelot_mact_learn(ocelot, pgid->index, addr, vid,
+				 mc->entry_type);
+}
+EXPORT_SYMBOL(ocelot_port_mdb_add);
+
+int ocelot_port_mdb_del(struct ocelot *ocelot, int port,
+			const struct switchdev_obj_port_mdb *mdb,
+			const struct net_device *bridge)
+{
+	unsigned char addr[ETH_ALEN];
+	struct ocelot_multicast *mc;
+	struct ocelot_pgid *pgid;
+	u16 vid = mdb->vid;
+
+	if (!vid)
+		vid = ocelot_vlan_unaware_pvid(ocelot, bridge);
+
+	mc = ocelot_multicast_get(ocelot, mdb->addr, vid);
+	if (!mc)
+		return -ENOENT;
+
+	ocelot_encode_ports_to_mdb(addr, mc);
+	ocelot_mact_forget(ocelot, addr, vid);
+
+	ocelot_pgid_free(ocelot, mc->pgid);
+	mc->ports &= ~BIT(port);
+	if (!mc->ports) {
+		list_del(&mc->list);
+		devm_kfree(ocelot->dev, mc);
+		return 0;
+	}
+
+	/* We have a PGID with fewer ports now */
+	pgid = ocelot_mdb_get_pgid(ocelot, mc);
+	if (IS_ERR(pgid))
+		return PTR_ERR(pgid);
+	mc->pgid = pgid;
+
+	ocelot_encode_ports_to_mdb(addr, mc);
+
+	if (mc->entry_type != ENTRYTYPE_MACv4 &&
+	    mc->entry_type != ENTRYTYPE_MACv6)
+		ocelot_write_rix(ocelot, pgid->ports, ANA_PGID_PGID,
+				 pgid->index);
+
+	return ocelot_mact_learn(ocelot, pgid->index, addr, vid,
+				 mc->entry_type);
+}
+EXPORT_SYMBOL(ocelot_port_mdb_del);
+
+int ocelot_port_bridge_join(struct ocelot *ocelot, int port,
+			    struct net_device *bridge, int bridge_num,
+			    struct netlink_ext_ack *extack)
+{
+	struct ocelot_port *ocelot_port = ocelot->ports[port];
+	int err;
+
+	err = ocelot_single_vlan_aware_bridge(ocelot, extack);
+	if (err)
+		return err;
+
+	mutex_lock(&ocelot->fwd_domain_lock);
+
+	ocelot_port->bridge = bridge;
+	ocelot_port->bridge_num = bridge_num;
+
+	ocelot_apply_bridge_fwd_mask(ocelot, true);
+
+	mutex_unlock(&ocelot->fwd_domain_lock);
+
+	if (br_vlan_enabled(bridge))
+		return 0;
+
+	return ocelot_add_vlan_unaware_pvid(ocelot, port, bridge);
+}
+EXPORT_SYMBOL(ocelot_port_bridge_join);
+
+void ocelot_port_bridge_leave(struct ocelot *ocelot, int port,
+			      struct net_device *bridge)
+{
+	struct ocelot_port *ocelot_port = ocelot->ports[port];
+
+	mutex_lock(&ocelot->fwd_domain_lock);
+
+	if (!br_vlan_enabled(bridge))
+		ocelot_del_vlan_unaware_pvid(ocelot, port, bridge);
+
+	ocelot_port->bridge = NULL;
+	ocelot_port->bridge_num = -1;
+
+	ocelot_port_set_pvid(ocelot, port, NULL);
+	ocelot_port_manage_port_tag(ocelot, port);
+	ocelot_apply_bridge_fwd_mask(ocelot, false);
+
+	mutex_unlock(&ocelot->fwd_domain_lock);
+}
+EXPORT_SYMBOL(ocelot_port_bridge_leave);
+
+static void ocelot_set_aggr_pgids(struct ocelot *ocelot)
+{
+	unsigned long visited = GENMASK(ocelot->num_phys_ports - 1, 0);
+	int i, port, lag;
+
+	/* Reset destination and aggregation PGIDS */
+	for_each_unicast_dest_pgid(ocelot, port)
+		ocelot_write_rix(ocelot, BIT(port), ANA_PGID_PGID, port);
+
+	for_each_aggr_pgid(ocelot, i)
+		ocelot_write_rix(ocelot, GENMASK(ocelot->num_phys_ports - 1, 0),
+				 ANA_PGID_PGID, i);
+
+	/* The visited ports bitmask holds the list of ports offloading any
+	 * bonding interface. Initially we mark all these ports as unvisited,
+	 * then every time we visit a port in this bitmask, we know that it is
+	 * the lowest numbered port, i.e. the one whose logical ID == physical
+	 * port ID == LAG ID. So we mark as visited all further ports in the
+	 * bitmask that are offloading the same bonding interface. This way,
+	 * we set up the aggregation PGIDs only once per bonding interface.
+	 */
+	for (port = 0; port < ocelot->num_phys_ports; port++) {
+		struct ocelot_port *ocelot_port = ocelot->ports[port];
+
+		if (!ocelot_port || !ocelot_port->bond)
+			continue;
+
+		visited &= ~BIT(port);
+	}
+
+	/* Now, set PGIDs for each active LAG */
+	for (lag = 0; lag < ocelot->num_phys_ports; lag++) {
+		struct net_device *bond = ocelot->ports[lag]->bond;
+		int num_active_ports = 0;
+		unsigned long bond_mask;
+		u8 aggr_idx[16];
+
+		if (!bond || (visited & BIT(lag)))
+			continue;
+
+		bond_mask = ocelot_get_bond_mask(ocelot, bond);
+
+		for_each_set_bit(port, &bond_mask, ocelot->num_phys_ports) {
+			struct ocelot_port *ocelot_port = ocelot->ports[port];
+
+			// Destination mask
+			ocelot_write_rix(ocelot, bond_mask,
+					 ANA_PGID_PGID, port);
+
+			if (ocelot_port->lag_tx_active)
+				aggr_idx[num_active_ports++] = port;
+		}
+
+		for_each_aggr_pgid(ocelot, i) {
+			u32 ac;
+
+			ac = ocelot_read_rix(ocelot, ANA_PGID_PGID, i);
+			ac &= ~bond_mask;
+			/* Don't do division by zero if there was no active
+			 * port. Just make all aggregation codes zero.
+			 */
+			if (num_active_ports)
+				ac |= BIT(aggr_idx[i % num_active_ports]);
+			ocelot_write_rix(ocelot, ac, ANA_PGID_PGID, i);
+		}
+
+		/* Mark all ports in the same LAG as visited to avoid applying
+		 * the same config again.
+		 */
+		for (port = lag; port < ocelot->num_phys_ports; port++) {
+			struct ocelot_port *ocelot_port = ocelot->ports[port];
+
+			if (!ocelot_port)
+				continue;
+
+			if (ocelot_port->bond == bond)
+				visited |= BIT(port);
+		}
+	}
+}
+
+/* When offloading a bonding interface, the switch ports configured under the
+ * same bond must have the same logical port ID, equal to the physical port ID
+ * of the lowest numbered physical port in that bond. Otherwise, in standalone/
+ * bridged mode, each port has a logical port ID equal to its physical port ID.
+ */
+static void ocelot_setup_logical_port_ids(struct ocelot *ocelot)
+{
+	int port;
+
+	for (port = 0; port < ocelot->num_phys_ports; port++) {
+		struct ocelot_port *ocelot_port = ocelot->ports[port];
+		struct net_device *bond;
+
+		if (!ocelot_port)
+			continue;
+
+		bond = ocelot_port->bond;
+		if (bond) {
+			int lag = ocelot_bond_get_id(ocelot, bond);
+
+			ocelot_rmw_gix(ocelot,
+				       ANA_PORT_PORT_CFG_PORTID_VAL(lag),
+				       ANA_PORT_PORT_CFG_PORTID_VAL_M,
+				       ANA_PORT_PORT_CFG, port);
+		} else {
+			ocelot_rmw_gix(ocelot,
+				       ANA_PORT_PORT_CFG_PORTID_VAL(port),
+				       ANA_PORT_PORT_CFG_PORTID_VAL_M,
+				       ANA_PORT_PORT_CFG, port);
+		}
+	}
+}
+
+static int ocelot_migrate_mc(struct ocelot *ocelot, struct ocelot_multicast *mc,
+			     unsigned long from_mask, unsigned long to_mask)
+{
+	unsigned char addr[ETH_ALEN];
+	struct ocelot_pgid *pgid;
+	u16 vid = mc->vid;
+
+	dev_dbg(ocelot->dev,
+		"Migrating multicast %pM vid %d from port mask 0x%lx to 0x%lx\n",
+		mc->addr, mc->vid, from_mask, to_mask);
+
+	/* First clean up the current port mask from hardware, because
+	 * we'll be modifying it.
+	 */
+	ocelot_pgid_free(ocelot, mc->pgid);
+	ocelot_encode_ports_to_mdb(addr, mc);
+	ocelot_mact_forget(ocelot, addr, vid);
+
+	mc->ports &= ~from_mask;
+	mc->ports |= to_mask;
+
+	pgid = ocelot_mdb_get_pgid(ocelot, mc);
+	if (IS_ERR(pgid)) {
+		dev_err(ocelot->dev,
+			"Cannot allocate PGID for mdb %pM vid %d\n",
+			mc->addr, mc->vid);
+		devm_kfree(ocelot->dev, mc);
+		return PTR_ERR(pgid);
+	}
+	mc->pgid = pgid;
+
+	ocelot_encode_ports_to_mdb(addr, mc);
+
+	if (mc->entry_type != ENTRYTYPE_MACv4 &&
+	    mc->entry_type != ENTRYTYPE_MACv6)
+		ocelot_write_rix(ocelot, pgid->ports, ANA_PGID_PGID,
+				 pgid->index);
+
+	return ocelot_mact_learn(ocelot, pgid->index, addr, vid,
+				 mc->entry_type);
+}
+
+int ocelot_migrate_mdbs(struct ocelot *ocelot, unsigned long from_mask,
+			unsigned long to_mask)
+{
+	struct ocelot_multicast *mc;
+	int err;
+
+	list_for_each_entry(mc, &ocelot->multicast, list) {
+		if (!(mc->ports & from_mask))
+			continue;
+
+		err = ocelot_migrate_mc(ocelot, mc, from_mask, to_mask);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ocelot_migrate_mdbs);
+
+/* Documentation for PORTID_VAL says:
+ *     Logical port number for front port. If port is not a member of a LLAG,
+ *     then PORTID must be set to the physical port number.
+ *     If port is a member of a LLAG, then PORTID must be set to the common
+ *     PORTID_VAL used for all member ports of the LLAG.
+ *     The value must not exceed the number of physical ports on the device.
+ *
+ * This means we have little choice but to migrate FDB entries pointing towards
+ * a logical port when that changes.
+ */
+static void ocelot_migrate_lag_fdbs(struct ocelot *ocelot,
+				    struct net_device *bond,
+				    int lag)
+{
+	struct ocelot_lag_fdb *fdb;
+	int err;
+
+	lockdep_assert_held(&ocelot->fwd_domain_lock);
+
+	list_for_each_entry(fdb, &ocelot->lag_fdbs, list) {
+		if (fdb->bond != bond)
+			continue;
+
+		err = ocelot_mact_forget(ocelot, fdb->addr, fdb->vid);
+		if (err) {
+			dev_err(ocelot->dev,
+				"failed to delete LAG %s FDB %pM vid %d: %pe\n",
+				bond->name, fdb->addr, fdb->vid, ERR_PTR(err));
+		}
+
+		err = ocelot_mact_learn(ocelot, lag, fdb->addr, fdb->vid,
+					ENTRYTYPE_LOCKED);
+		if (err) {
+			dev_err(ocelot->dev,
+				"failed to migrate LAG %s FDB %pM vid %d: %pe\n",
+				bond->name, fdb->addr, fdb->vid, ERR_PTR(err));
+		}
+	}
+}
+
+int ocelot_port_lag_join(struct ocelot *ocelot, int port,
+			 struct net_device *bond,
+			 struct netdev_lag_upper_info *info,
+			 struct netlink_ext_ack *extack)
+{
+	if (info->tx_type != NETDEV_LAG_TX_TYPE_HASH) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Can only offload LAG using hash TX type");
+		return -EOPNOTSUPP;
+	}
+
+	mutex_lock(&ocelot->fwd_domain_lock);
+
+	ocelot->ports[port]->bond = bond;
+
+	ocelot_setup_logical_port_ids(ocelot);
+	ocelot_apply_bridge_fwd_mask(ocelot, true);
+	ocelot_set_aggr_pgids(ocelot);
+
+	mutex_unlock(&ocelot->fwd_domain_lock);
+
+	return 0;
+}
+EXPORT_SYMBOL(ocelot_port_lag_join);
+
+void ocelot_port_lag_leave(struct ocelot *ocelot, int port,
+			   struct net_device *bond)
+{
+	int old_lag_id, new_lag_id;
+
+	mutex_lock(&ocelot->fwd_domain_lock);
+
+	old_lag_id = ocelot_bond_get_id(ocelot, bond);
+
+	ocelot->ports[port]->bond = NULL;
+
+	ocelot_setup_logical_port_ids(ocelot);
+	ocelot_apply_bridge_fwd_mask(ocelot, false);
+	ocelot_set_aggr_pgids(ocelot);
+
+	new_lag_id = ocelot_bond_get_id(ocelot, bond);
+
+	if (new_lag_id >= 0 && old_lag_id != new_lag_id)
+		ocelot_migrate_lag_fdbs(ocelot, bond, new_lag_id);
+
+	mutex_unlock(&ocelot->fwd_domain_lock);
+}
+EXPORT_SYMBOL(ocelot_port_lag_leave);
+
+void ocelot_port_lag_change(struct ocelot *ocelot, int port, bool lag_tx_active)
+{
+	struct ocelot_port *ocelot_port = ocelot->ports[port];
+
+	mutex_lock(&ocelot->fwd_domain_lock);
+
+	ocelot_port->lag_tx_active = lag_tx_active;
+
+	/* Rebalance the LAGs */
+	ocelot_set_aggr_pgids(ocelot);
+
+	mutex_unlock(&ocelot->fwd_domain_lock);
+}
+EXPORT_SYMBOL(ocelot_port_lag_change);
+
+int ocelot_lag_fdb_add(struct ocelot *ocelot, struct net_device *bond,
+		       const unsigned char *addr, u16 vid,
+		       const struct net_device *bridge)
+{
+	struct ocelot_lag_fdb *fdb;
+	int lag, err;
+
+	fdb = kzalloc(sizeof(*fdb), GFP_KERNEL);
+	if (!fdb)
+		return -ENOMEM;
+
+	mutex_lock(&ocelot->fwd_domain_lock);
+
+	if (!vid)
+		vid = ocelot_vlan_unaware_pvid(ocelot, bridge);
+
+	ether_addr_copy(fdb->addr, addr);
+	fdb->vid = vid;
+	fdb->bond = bond;
+
+	lag = ocelot_bond_get_id(ocelot, bond);
+
+	err = ocelot_mact_learn(ocelot, lag, addr, vid, ENTRYTYPE_LOCKED);
+	if (err) {
+		mutex_unlock(&ocelot->fwd_domain_lock);
+		kfree(fdb);
+		return err;
+	}
+
+	list_add_tail(&fdb->list, &ocelot->lag_fdbs);
+	mutex_unlock(&ocelot->fwd_domain_lock);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ocelot_lag_fdb_add);
+
+int ocelot_lag_fdb_del(struct ocelot *ocelot, struct net_device *bond,
+		       const unsigned char *addr, u16 vid,
+		       const struct net_device *bridge)
+{
+	struct ocelot_lag_fdb *fdb, *tmp;
+
+	mutex_lock(&ocelot->fwd_domain_lock);
+
+	if (!vid)
+		vid = ocelot_vlan_unaware_pvid(ocelot, bridge);
+
+	list_for_each_entry_safe(fdb, tmp, &ocelot->lag_fdbs, list) {
+		if (!ether_addr_equal(fdb->addr, addr) || fdb->vid != vid ||
+		    fdb->bond != bond)
+			continue;
+
+		ocelot_mact_forget(ocelot, addr, vid);
+		list_del(&fdb->list);
+		mutex_unlock(&ocelot->fwd_domain_lock);
+		kfree(fdb);
+
+		return 0;
+	}
+
+	mutex_unlock(&ocelot->fwd_domain_lock);
+
+	return -ENOENT;
+}
+EXPORT_SYMBOL_GPL(ocelot_lag_fdb_del);
+
+/* Configure the maximum SDU (L2 payload) on RX to the value specified in @sdu.
+ * The length of VLAN tags is accounted for automatically via DEV_MAC_TAGS_CFG.
+ * In the special case that it's the NPI port that we're configuring, the
+ * length of the tag and optional prefix needs to be accounted for privately,
+ * in order to be able to sustain communication at the requested @sdu.
+ */
+void ocelot_port_set_maxlen(struct ocelot *ocelot, int port, size_t sdu)
+{
+	struct ocelot_port *ocelot_port = ocelot->ports[port];
+	int maxlen = sdu + ETH_HLEN + ETH_FCS_LEN;
+	int pause_start, pause_stop;
+	int atop, atop_tot;
+
+	if (port == ocelot->npi) {
+		maxlen += OCELOT_TAG_LEN;
+
+		if (ocelot->npi_inj_prefix == OCELOT_TAG_PREFIX_SHORT)
+			maxlen += OCELOT_SHORT_PREFIX_LEN;
+		else if (ocelot->npi_inj_prefix == OCELOT_TAG_PREFIX_LONG)
+			maxlen += OCELOT_LONG_PREFIX_LEN;
+	}
+
+	ocelot_port_writel(ocelot_port, maxlen, DEV_MAC_MAXLEN_CFG);
+
+	/* Set Pause watermark hysteresis */
+	pause_start = 6 * maxlen / OCELOT_BUFFER_CELL_SZ;
+	pause_stop = 4 * maxlen / OCELOT_BUFFER_CELL_SZ;
+	ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_START,
+			    pause_start);
+	ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_STOP,
+			    pause_stop);
+
+	/* Tail dropping watermarks */
+	atop_tot = (ocelot->packet_buffer_size - 9 * maxlen) /
+		   OCELOT_BUFFER_CELL_SZ;
+	atop = (9 * maxlen) / OCELOT_BUFFER_CELL_SZ;
+	ocelot_write_rix(ocelot, ocelot->ops->wm_enc(atop), SYS_ATOP, port);
+	ocelot_write(ocelot, ocelot->ops->wm_enc(atop_tot), SYS_ATOP_TOT_CFG);
+}
+EXPORT_SYMBOL(ocelot_port_set_maxlen);
+
+int ocelot_get_max_mtu(struct ocelot *ocelot, int port)
+{
+	int max_mtu = 65535 - ETH_HLEN - ETH_FCS_LEN;
+
+	if (port == ocelot->npi) {
+		max_mtu -= OCELOT_TAG_LEN;
+
+		if (ocelot->npi_inj_prefix == OCELOT_TAG_PREFIX_SHORT)
+			max_mtu -= OCELOT_SHORT_PREFIX_LEN;
+		else if (ocelot->npi_inj_prefix == OCELOT_TAG_PREFIX_LONG)
+			max_mtu -= OCELOT_LONG_PREFIX_LEN;
+	}
+
+	return max_mtu;
+}
+EXPORT_SYMBOL(ocelot_get_max_mtu);
+
+static void ocelot_port_set_learning(struct ocelot *ocelot, int port,
+				     bool enabled)
+{
+	struct ocelot_port *ocelot_port = ocelot->ports[port];
+	u32 val = 0;
+
+	if (enabled)
+		val = ANA_PORT_PORT_CFG_LEARN_ENA;
+
+	ocelot_rmw_gix(ocelot, val, ANA_PORT_PORT_CFG_LEARN_ENA,
+		       ANA_PORT_PORT_CFG, port);
+
+	ocelot_port->learn_ena = enabled;
+}
+
+static void ocelot_port_set_ucast_flood(struct ocelot *ocelot, int port,
+					bool enabled)
+{
+	u32 val = 0;
+
+	if (enabled)
+		val = BIT(port);
+
+	ocelot_rmw_rix(ocelot, val, BIT(port), ANA_PGID_PGID, PGID_UC);
+}
+
+static void ocelot_port_set_mcast_flood(struct ocelot *ocelot, int port,
+					bool enabled)
+{
+	u32 val = 0;
+
+	if (enabled)
+		val = BIT(port);
+
+	ocelot_rmw_rix(ocelot, val, BIT(port), ANA_PGID_PGID, PGID_MC);
+	ocelot_rmw_rix(ocelot, val, BIT(port), ANA_PGID_PGID, PGID_MCIPV4);
+	ocelot_rmw_rix(ocelot, val, BIT(port), ANA_PGID_PGID, PGID_MCIPV6);
+}
+
+static void ocelot_port_set_bcast_flood(struct ocelot *ocelot, int port,
+					bool enabled)
+{
+	u32 val = 0;
+
+	if (enabled)
+		val = BIT(port);
+
+	ocelot_rmw_rix(ocelot, val, BIT(port), ANA_PGID_PGID, PGID_BC);
+}
+
+int ocelot_port_pre_bridge_flags(struct ocelot *ocelot, int port,
+				 struct switchdev_brport_flags flags)
+{
+	if (flags.mask & ~(BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD |
+			   BR_BCAST_FLOOD))
+		return -EINVAL;
+
+	return 0;
+}
+EXPORT_SYMBOL(ocelot_port_pre_bridge_flags);
+
+void ocelot_port_bridge_flags(struct ocelot *ocelot, int port,
+			      struct switchdev_brport_flags flags)
+{
+	if (flags.mask & BR_LEARNING)
+		ocelot_port_set_learning(ocelot, port,
+					 !!(flags.val & BR_LEARNING));
+
+	if (flags.mask & BR_FLOOD)
+		ocelot_port_set_ucast_flood(ocelot, port,
+					    !!(flags.val & BR_FLOOD));
+
+	if (flags.mask & BR_MCAST_FLOOD)
+		ocelot_port_set_mcast_flood(ocelot, port,
+					    !!(flags.val & BR_MCAST_FLOOD));
+
+	if (flags.mask & BR_BCAST_FLOOD)
+		ocelot_port_set_bcast_flood(ocelot, port,
+					    !!(flags.val & BR_BCAST_FLOOD));
+}
+EXPORT_SYMBOL(ocelot_port_bridge_flags);
+
+int ocelot_port_get_default_prio(struct ocelot *ocelot, int port)
+{
+	int val = ocelot_read_gix(ocelot, ANA_PORT_QOS_CFG, port);
+
+	return ANA_PORT_QOS_CFG_QOS_DEFAULT_VAL_X(val);
+}
+EXPORT_SYMBOL_GPL(ocelot_port_get_default_prio);
+
+int ocelot_port_set_default_prio(struct ocelot *ocelot, int port, u8 prio)
+{
+	if (prio >= OCELOT_NUM_TC)
+		return -ERANGE;
+
+	ocelot_rmw_gix(ocelot,
+		       ANA_PORT_QOS_CFG_QOS_DEFAULT_VAL(prio),
+		       ANA_PORT_QOS_CFG_QOS_DEFAULT_VAL_M,
+		       ANA_PORT_QOS_CFG,
+		       port);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ocelot_port_set_default_prio);
+
+int ocelot_port_get_dscp_prio(struct ocelot *ocelot, int port, u8 dscp)
+{
+	int qos_cfg = ocelot_read_gix(ocelot, ANA_PORT_QOS_CFG, port);
+	int dscp_cfg = ocelot_read_rix(ocelot, ANA_DSCP_CFG, dscp);
+
+	/* Return error if DSCP prioritization isn't enabled */
+	if (!(qos_cfg & ANA_PORT_QOS_CFG_QOS_DSCP_ENA))
+		return -EOPNOTSUPP;
+
+	if (qos_cfg & ANA_PORT_QOS_CFG_DSCP_TRANSLATE_ENA) {
+		dscp = ANA_DSCP_CFG_DSCP_TRANSLATE_VAL_X(dscp_cfg);
+		/* Re-read ANA_DSCP_CFG for the translated DSCP */
+		dscp_cfg = ocelot_read_rix(ocelot, ANA_DSCP_CFG, dscp);
+	}
+
+	/* If the DSCP value is not trusted, the QoS classification falls back
+	 * to VLAN PCP or port-based default.
+	 */
+	if (!(dscp_cfg & ANA_DSCP_CFG_DSCP_TRUST_ENA))
+		return -EOPNOTSUPP;
+
+	return ANA_DSCP_CFG_QOS_DSCP_VAL_X(dscp_cfg);
+}
+EXPORT_SYMBOL_GPL(ocelot_port_get_dscp_prio);
+
+int ocelot_port_add_dscp_prio(struct ocelot *ocelot, int port, u8 dscp, u8 prio)
+{
+	int mask, val;
+
+	if (prio >= OCELOT_NUM_TC)
+		return -ERANGE;
+
+	/* There is at least one app table priority (this one), so we need to
+	 * make sure DSCP prioritization is enabled on the port.
+	 * Also make sure DSCP translation is disabled
+	 * (dcbnl doesn't support it).
+	 */
+	mask = ANA_PORT_QOS_CFG_QOS_DSCP_ENA |
+	       ANA_PORT_QOS_CFG_DSCP_TRANSLATE_ENA;
+
+	ocelot_rmw_gix(ocelot, ANA_PORT_QOS_CFG_QOS_DSCP_ENA, mask,
+		       ANA_PORT_QOS_CFG, port);
+
+	/* Trust this DSCP value and map it to the given QoS class */
+	val = ANA_DSCP_CFG_DSCP_TRUST_ENA | ANA_DSCP_CFG_QOS_DSCP_VAL(prio);
+
+	ocelot_write_rix(ocelot, val, ANA_DSCP_CFG, dscp);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ocelot_port_add_dscp_prio);
+
+int ocelot_port_del_dscp_prio(struct ocelot *ocelot, int port, u8 dscp, u8 prio)
+{
+	int dscp_cfg = ocelot_read_rix(ocelot, ANA_DSCP_CFG, dscp);
+	int mask, i;
+
+	/* During a "dcb app replace" command, the new app table entry will be
+	 * added first, then the old one will be deleted. But the hardware only
+	 * supports one QoS class per DSCP value (duh), so if we blindly delete
+	 * the app table entry for this DSCP value, we end up deleting the
+	 * entry with the new priority. Avoid that by checking whether user
+	 * space wants to delete the priority which is currently configured, or
+	 * something else which is no longer current.
+	 */
+	if (ANA_DSCP_CFG_QOS_DSCP_VAL_X(dscp_cfg) != prio)
+		return 0;
+
+	/* Untrust this DSCP value */
+	ocelot_write_rix(ocelot, 0, ANA_DSCP_CFG, dscp);
+
+	for (i = 0; i < 64; i++) {
+		int dscp_cfg = ocelot_read_rix(ocelot, ANA_DSCP_CFG, i);
+
+		/* There are still app table entries on the port, so we need to
+		 * keep DSCP enabled, nothing to do.
+		 */
+		if (dscp_cfg & ANA_DSCP_CFG_DSCP_TRUST_ENA)
+			return 0;
+	}
+
+	/* Disable DSCP QoS classification if there isn't any trusted
+	 * DSCP value left.
+	 */
+	mask = ANA_PORT_QOS_CFG_QOS_DSCP_ENA |
+	       ANA_PORT_QOS_CFG_DSCP_TRANSLATE_ENA;
+
+	ocelot_rmw_gix(ocelot, 0, mask, ANA_PORT_QOS_CFG, port);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ocelot_port_del_dscp_prio);
+
+struct ocelot_mirror *ocelot_mirror_get(struct ocelot *ocelot, int to,
+					struct netlink_ext_ack *extack)
+{
+	struct ocelot_mirror *m = ocelot->mirror;
+
+	if (m) {
+		if (m->to != to) {
+			NL_SET_ERR_MSG_MOD(extack,
+					   "Mirroring already configured towards different egress port");
+			return ERR_PTR(-EBUSY);
+		}
+
+		refcount_inc(&m->refcount);
+		return m;
+	}
+
+	m = kzalloc(sizeof(*m), GFP_KERNEL);
+	if (!m)
+		return ERR_PTR(-ENOMEM);
+
+	m->to = to;
+	refcount_set(&m->refcount, 1);
+	ocelot->mirror = m;
+
+	/* Program the mirror port to hardware */
+	ocelot_write(ocelot, BIT(to), ANA_MIRRORPORTS);
+
+	return m;
+}
+
+void ocelot_mirror_put(struct ocelot *ocelot)
+{
+	struct ocelot_mirror *m = ocelot->mirror;
+
+	if (!refcount_dec_and_test(&m->refcount))
+		return;
+
+	ocelot_write(ocelot, 0, ANA_MIRRORPORTS);
+	ocelot->mirror = NULL;
+	kfree(m);
+}
+
+int ocelot_port_mirror_add(struct ocelot *ocelot, int from, int to,
+			   bool ingress, struct netlink_ext_ack *extack)
+{
+	struct ocelot_mirror *m = ocelot_mirror_get(ocelot, to, extack);
+
+	if (IS_ERR(m))
+		return PTR_ERR(m);
+
+	if (ingress) {
+		ocelot_rmw_gix(ocelot, ANA_PORT_PORT_CFG_SRC_MIRROR_ENA,
+			       ANA_PORT_PORT_CFG_SRC_MIRROR_ENA,
+			       ANA_PORT_PORT_CFG, from);
+	} else {
+		ocelot_rmw(ocelot, BIT(from), BIT(from),
+			   ANA_EMIRRORPORTS);
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ocelot_port_mirror_add);
+
+void ocelot_port_mirror_del(struct ocelot *ocelot, int from, bool ingress)
+{
+	if (ingress) {
+		ocelot_rmw_gix(ocelot, 0, ANA_PORT_PORT_CFG_SRC_MIRROR_ENA,
+			       ANA_PORT_PORT_CFG, from);
+	} else {
+		ocelot_rmw(ocelot, 0, BIT(from), ANA_EMIRRORPORTS);
+	}
+
+	ocelot_mirror_put(ocelot);
+}
+EXPORT_SYMBOL_GPL(ocelot_port_mirror_del);
+
+void ocelot_init_port(struct ocelot *ocelot, int port)
+{
+	struct ocelot_port *ocelot_port = ocelot->ports[port];
+
+	skb_queue_head_init(&ocelot_port->tx_skbs);
+
+	/* Basic L2 initialization */
+
+	/* Set MAC IFG Gaps
+	 * FDX: TX_IFG = 5, RX_IFG1 = RX_IFG2 = 0
+	 * !FDX: TX_IFG = 5, RX_IFG1 = RX_IFG2 = 5
+	 */
+	ocelot_port_writel(ocelot_port, DEV_MAC_IFG_CFG_TX_IFG(5),
+			   DEV_MAC_IFG_CFG);
+
+	/* Load seed (0) and set MAC HDX late collision  */
+	ocelot_port_writel(ocelot_port, DEV_MAC_HDX_CFG_LATE_COL_POS(67) |
+			   DEV_MAC_HDX_CFG_SEED_LOAD,
+			   DEV_MAC_HDX_CFG);
+	mdelay(1);
+	ocelot_port_writel(ocelot_port, DEV_MAC_HDX_CFG_LATE_COL_POS(67),
+			   DEV_MAC_HDX_CFG);
+
+	/* Set Max Length and maximum tags allowed */
+	ocelot_port_set_maxlen(ocelot, port, ETH_DATA_LEN);
+	ocelot_port_writel(ocelot_port, DEV_MAC_TAGS_CFG_TAG_ID(ETH_P_8021AD) |
+			   DEV_MAC_TAGS_CFG_VLAN_AWR_ENA |
+			   DEV_MAC_TAGS_CFG_VLAN_DBL_AWR_ENA |
+			   DEV_MAC_TAGS_CFG_VLAN_LEN_AWR_ENA,
+			   DEV_MAC_TAGS_CFG);
+
+	/* Set SMAC of Pause frame (00:00:00:00:00:00) */
+	ocelot_port_writel(ocelot_port, 0, DEV_MAC_FC_MAC_HIGH_CFG);
+	ocelot_port_writel(ocelot_port, 0, DEV_MAC_FC_MAC_LOW_CFG);
+
+	/* Enable transmission of pause frames */
+	ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, 1);
+
+	/* Drop frames with multicast source address */
+	ocelot_rmw_gix(ocelot, ANA_PORT_DROP_CFG_DROP_MC_SMAC_ENA,
+		       ANA_PORT_DROP_CFG_DROP_MC_SMAC_ENA,
+		       ANA_PORT_DROP_CFG, port);
+
+	/* Set default VLAN and tag type to 8021Q. */
+	ocelot_rmw_gix(ocelot, REW_PORT_VLAN_CFG_PORT_TPID(ETH_P_8021Q),
+		       REW_PORT_VLAN_CFG_PORT_TPID_M,
+		       REW_PORT_VLAN_CFG, port);
+
+	/* Disable source address learning for standalone mode */
+	ocelot_port_set_learning(ocelot, port, false);
+
+	/* Set the port's initial logical port ID value, enable receiving
+	 * frames on it, and configure the MAC address learning type to
+	 * automatic.
+	 */
+	ocelot_write_gix(ocelot, ANA_PORT_PORT_CFG_LEARNAUTO |
+			 ANA_PORT_PORT_CFG_RECV_ENA |
+			 ANA_PORT_PORT_CFG_PORTID_VAL(port),
+			 ANA_PORT_PORT_CFG, port);
+
+	/* Enable vcap lookups */
+	ocelot_vcap_enable(ocelot, port);
+}
+EXPORT_SYMBOL(ocelot_init_port);
+
+/* Configure and enable the CPU port module, which is a set of queues
+ * accessible through register MMIO, frame DMA or Ethernet (in case
+ * NPI mode is used).
+ */
+static void ocelot_cpu_port_init(struct ocelot *ocelot)
+{
+	int cpu = ocelot->num_phys_ports;
+
+	/* The unicast destination PGID for the CPU port module is unused */
+	ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, cpu);
+	/* Instead set up a multicast destination PGID for traffic copied to
+	 * the CPU. Whitelisted MAC addresses like the port netdevice MAC
+	 * addresses will be copied to the CPU via this PGID.
+	 */
+	ocelot_write_rix(ocelot, BIT(cpu), ANA_PGID_PGID, PGID_CPU);
+	ocelot_write_gix(ocelot, ANA_PORT_PORT_CFG_RECV_ENA |
+			 ANA_PORT_PORT_CFG_PORTID_VAL(cpu),
+			 ANA_PORT_PORT_CFG, cpu);
+
+	/* Enable CPU port module */
+	ocelot_fields_write(ocelot, cpu, QSYS_SWITCH_PORT_MODE_PORT_ENA, 1);
+	/* CPU port Injection/Extraction configuration */
+	ocelot_fields_write(ocelot, cpu, SYS_PORT_MODE_INCL_XTR_HDR,
+			    OCELOT_TAG_PREFIX_NONE);
+	ocelot_fields_write(ocelot, cpu, SYS_PORT_MODE_INCL_INJ_HDR,
+			    OCELOT_TAG_PREFIX_NONE);
+
+	/* Configure the CPU port to be VLAN aware */
+	ocelot_write_gix(ocelot,
+			 ANA_PORT_VLAN_CFG_VLAN_VID(OCELOT_STANDALONE_PVID) |
+			 ANA_PORT_VLAN_CFG_VLAN_AWARE_ENA |
+			 ANA_PORT_VLAN_CFG_VLAN_POP_CNT(1),
+			 ANA_PORT_VLAN_CFG, cpu);
+}
+
+static void ocelot_detect_features(struct ocelot *ocelot)
+{
+	int mmgt, eq_ctrl;
+
+	/* For Ocelot, Felix, Seville, Serval etc, SYS:MMGT:MMGT:FREECNT holds
+	 * the number of 240-byte free memory words (aka 4-cell chunks) and not
+	 * 192 bytes as the documentation incorrectly says.
+	 */
+	mmgt = ocelot_read(ocelot, SYS_MMGT);
+	ocelot->packet_buffer_size = 240 * SYS_MMGT_FREECNT(mmgt);
+
+	eq_ctrl = ocelot_read(ocelot, QSYS_EQ_CTRL);
+	ocelot->num_frame_refs = QSYS_MMGT_EQ_CTRL_FP_FREE_CNT(eq_ctrl);
+}
+
+int ocelot_init(struct ocelot *ocelot)
+{
+	int i, ret;
+	u32 port;
+
+	if (ocelot->ops->reset) {
+		ret = ocelot->ops->reset(ocelot);
+		if (ret) {
+			dev_err(ocelot->dev, "Switch reset failed\n");
+			return ret;
+		}
+	}
+
+	mutex_init(&ocelot->mact_lock);
+	mutex_init(&ocelot->fwd_domain_lock);
+	mutex_init(&ocelot->tas_lock);
+	spin_lock_init(&ocelot->ptp_clock_lock);
+	spin_lock_init(&ocelot->ts_id_lock);
+
+	ocelot->owq = alloc_ordered_workqueue("ocelot-owq", 0);
+	if (!ocelot->owq)
+		return -ENOMEM;
+
+	ret = ocelot_stats_init(ocelot);
+	if (ret) {
+		destroy_workqueue(ocelot->owq);
+		return ret;
+	}
+
+	INIT_LIST_HEAD(&ocelot->multicast);
+	INIT_LIST_HEAD(&ocelot->pgids);
+	INIT_LIST_HEAD(&ocelot->vlans);
+	INIT_LIST_HEAD(&ocelot->lag_fdbs);
+	ocelot_detect_features(ocelot);
+	ocelot_mact_init(ocelot);
+	ocelot_vlan_init(ocelot);
+	ocelot_vcap_init(ocelot);
+	ocelot_cpu_port_init(ocelot);
+
+	if (ocelot->ops->psfp_init)
+		ocelot->ops->psfp_init(ocelot);
+
+	for (port = 0; port < ocelot->num_phys_ports; port++) {
+		/* Clear all counters (5 groups) */
+		ocelot_write(ocelot, SYS_STAT_CFG_STAT_VIEW(port) |
+				     SYS_STAT_CFG_STAT_CLEAR_SHOT(0x7f),
+			     SYS_STAT_CFG);
+	}
+
+	/* Only use S-Tag */
+	ocelot_write(ocelot, ETH_P_8021AD, SYS_VLAN_ETYPE_CFG);
+
+	/* Aggregation mode */
+	ocelot_write(ocelot, ANA_AGGR_CFG_AC_SMAC_ENA |
+			     ANA_AGGR_CFG_AC_DMAC_ENA |
+			     ANA_AGGR_CFG_AC_IP4_SIPDIP_ENA |
+			     ANA_AGGR_CFG_AC_IP4_TCPUDP_ENA |
+			     ANA_AGGR_CFG_AC_IP6_FLOW_LBL_ENA |
+			     ANA_AGGR_CFG_AC_IP6_TCPUDP_ENA,
+			     ANA_AGGR_CFG);
+
+	/* Set MAC age time to default value. The entry is aged after
+	 * 2*AGE_PERIOD
+	 */
+	ocelot_write(ocelot,
+		     ANA_AUTOAGE_AGE_PERIOD(BR_DEFAULT_AGEING_TIME / 2 / HZ),
+		     ANA_AUTOAGE);
+
+	/* Disable learning for frames discarded by VLAN ingress filtering */
+	regmap_field_write(ocelot->regfields[ANA_ADVLEARN_VLAN_CHK], 1);
+
+	/* Setup frame ageing - fixed value "2 sec" - in 6.5 us units */
+	ocelot_write(ocelot, SYS_FRM_AGING_AGE_TX_ENA |
+		     SYS_FRM_AGING_MAX_AGE(307692), SYS_FRM_AGING);
+
+	/* Setup flooding PGIDs */
+	for (i = 0; i < ocelot->num_flooding_pgids; i++)
+		ocelot_write_rix(ocelot, ANA_FLOODING_FLD_MULTICAST(PGID_MC) |
+				 ANA_FLOODING_FLD_BROADCAST(PGID_BC) |
+				 ANA_FLOODING_FLD_UNICAST(PGID_UC),
+				 ANA_FLOODING, i);
+	ocelot_write(ocelot, ANA_FLOODING_IPMC_FLD_MC6_DATA(PGID_MCIPV6) |
+		     ANA_FLOODING_IPMC_FLD_MC6_CTRL(PGID_MC) |
+		     ANA_FLOODING_IPMC_FLD_MC4_DATA(PGID_MCIPV4) |
+		     ANA_FLOODING_IPMC_FLD_MC4_CTRL(PGID_MC),
+		     ANA_FLOODING_IPMC);
+
+	for (port = 0; port < ocelot->num_phys_ports; port++) {
+		/* Transmit the frame to the local port. */
+		ocelot_write_rix(ocelot, BIT(port), ANA_PGID_PGID, port);
+		/* Do not forward BPDU frames to the front ports. */
+		ocelot_write_gix(ocelot,
+				 ANA_PORT_CPU_FWD_BPDU_CFG_BPDU_REDIR_ENA(0xffff),
+				 ANA_PORT_CPU_FWD_BPDU_CFG,
+				 port);
+		/* Ensure bridging is disabled */
+		ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_SRC + port);
+	}
+
+	for_each_nonreserved_multicast_dest_pgid(ocelot, i) {
+		u32 val = ANA_PGID_PGID_PGID(GENMASK(ocelot->num_phys_ports - 1, 0));
+
+		ocelot_write_rix(ocelot, val, ANA_PGID_PGID, i);
+	}
+
+	ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_BLACKHOLE);
+
+	/* Allow broadcast and unknown L2 multicast to the CPU. */
+	ocelot_rmw_rix(ocelot, ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)),
+		       ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)),
+		       ANA_PGID_PGID, PGID_MC);
+	ocelot_rmw_rix(ocelot, ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)),
+		       ANA_PGID_PGID_PGID(BIT(ocelot->num_phys_ports)),
+		       ANA_PGID_PGID, PGID_BC);
+	ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_MCIPV4);
+	ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_MCIPV6);
+
+	/* Allow manual injection via DEVCPU_QS registers, and byte swap these
+	 * registers endianness.
+	 */
+	ocelot_write_rix(ocelot, QS_INJ_GRP_CFG_BYTE_SWAP |
+			 QS_INJ_GRP_CFG_MODE(1), QS_INJ_GRP_CFG, 0);
+	ocelot_write_rix(ocelot, QS_XTR_GRP_CFG_BYTE_SWAP |
+			 QS_XTR_GRP_CFG_MODE(1), QS_XTR_GRP_CFG, 0);
+	ocelot_write(ocelot, ANA_CPUQ_CFG_CPUQ_MIRROR(2) |
+		     ANA_CPUQ_CFG_CPUQ_LRN(2) |
+		     ANA_CPUQ_CFG_CPUQ_MAC_COPY(2) |
+		     ANA_CPUQ_CFG_CPUQ_SRC_COPY(2) |
+		     ANA_CPUQ_CFG_CPUQ_LOCKED_PORTMOVE(2) |
+		     ANA_CPUQ_CFG_CPUQ_ALLBRIDGE(6) |
+		     ANA_CPUQ_CFG_CPUQ_IPMC_CTRL(6) |
+		     ANA_CPUQ_CFG_CPUQ_IGMP(6) |
+		     ANA_CPUQ_CFG_CPUQ_MLD(6), ANA_CPUQ_CFG);
+	for (i = 0; i < 16; i++)
+		ocelot_write_rix(ocelot, ANA_CPUQ_8021_CFG_CPUQ_GARP_VAL(6) |
+				 ANA_CPUQ_8021_CFG_CPUQ_BPDU_VAL(6),
+				 ANA_CPUQ_8021_CFG, i);
+
+	return 0;
+}
+EXPORT_SYMBOL(ocelot_init);
+
+void ocelot_deinit(struct ocelot *ocelot)
+{
+	ocelot_stats_deinit(ocelot);
+	destroy_workqueue(ocelot->owq);
+}
+EXPORT_SYMBOL(ocelot_deinit);
+
+void ocelot_deinit_port(struct ocelot *ocelot, int port)
+{
+	struct ocelot_port *ocelot_port = ocelot->ports[port];
+
+	skb_queue_purge(&ocelot_port->tx_skbs);
+}
+EXPORT_SYMBOL(ocelot_deinit_port);
+
+MODULE_LICENSE("Dual MIT/GPL");