/*
 * drivers/net/ethernet/mellanox/mlxsw/spectrum.c
 * Copyright (c) 2015 Mellanox Technologies. All rights reserved.
 * Copyright (c) 2015 Jiri Pirko <jiri@mellanox.com>
 * Copyright (c) 2015 Ido Schimmel <idosch@mellanox.com>
 * Copyright (c) 2015 Elad Raz <eladr@mellanox.com>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the names of the copyright holders nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/slab.h>
#include <linux/device.h>
#include <linux/skbuff.h>
#include <linux/if_vlan.h>
#include <linux/if_bridge.h>
#include <linux/workqueue.h>
#include <linux/jiffies.h>
#include <linux/bitops.h>
#include <linux/list.h>
#include <linux/notifier.h>
#include <linux/dcbnl.h>
#include <linux/inetdevice.h>
#include <net/switchdev.h>
#include <generated/utsrelease.h>
#include <net/pkt_cls.h>
#include <net/tc_act/tc_mirred.h>
#include <net/netevent.h>

#include "spectrum.h"
#include "core.h"
#include "reg.h"
#include "port.h"
#include "trap.h"
#include "txheader.h"

static const char mlxsw_sp_driver_name[] = "mlxsw_spectrum";
static const char mlxsw_sp_driver_version[] = "1.0";

/* tx_hdr_version
 * Tx header version.
 * Must be set to 1.
 */
MLXSW_ITEM32(tx, hdr, version, 0x00, 28, 4);

/* tx_hdr_ctl
 * Packet control type.
 * 0 - Ethernet control (e.g. EMADs, LACP)
 * 1 - Ethernet data
 */
MLXSW_ITEM32(tx, hdr, ctl, 0x00, 26, 2);

/* tx_hdr_proto
 * Packet protocol type. Must be set to 1 (Ethernet).
 */
MLXSW_ITEM32(tx, hdr, proto, 0x00, 21, 3);

/* tx_hdr_rx_is_router
 * Packet is sent from the router. Valid for data packets only.
 */
MLXSW_ITEM32(tx, hdr, rx_is_router, 0x00, 19, 1);

/* tx_hdr_fid_valid
 * Indicates if the 'fid' field is valid and should be used for
 * forwarding lookup. Valid for data packets only.
 */
MLXSW_ITEM32(tx, hdr, fid_valid, 0x00, 16, 1);

/* tx_hdr_swid
 * Switch partition ID. Must be set to 0.
 */
MLXSW_ITEM32(tx, hdr, swid, 0x00, 12, 3);

/* tx_hdr_control_tclass
 * Indicates if the packet should use the control TClass and not one
 * of the data TClasses.
 */
MLXSW_ITEM32(tx, hdr, control_tclass, 0x00, 6, 1);

/* tx_hdr_etclass
 * Egress TClass to be used on the egress device on the egress port.
 */
MLXSW_ITEM32(tx, hdr, etclass, 0x00, 0, 4);

/* tx_hdr_port_mid
 * Destination local port for unicast packets.
 * Destination multicast ID for multicast packets.
 *
 * Control packets are directed to a specific egress port, while data
 * packets are transmitted through the CPU port (0) into the switch partition,
 * where forwarding rules are applied.
 */
MLXSW_ITEM32(tx, hdr, port_mid, 0x04, 16, 16);

/* tx_hdr_fid
 * Forwarding ID used for L2 forwarding lookup. Valid only if 'fid_valid' is
 * set, otherwise calculated based on the packet's VID using VID to FID mapping.
 * Valid for data packets only.
 */
MLXSW_ITEM32(tx, hdr, fid, 0x08, 0, 16);

/* tx_hdr_type
 * 0 - Data packets
 * 6 - Control packets
 */
MLXSW_ITEM32(tx, hdr, type, 0x0C, 0, 4);

static bool mlxsw_sp_port_dev_check(const struct net_device *dev);

static void mlxsw_sp_txhdr_construct(struct sk_buff *skb,
                                     const struct mlxsw_tx_info *tx_info)
{
        char *txhdr = skb_push(skb, MLXSW_TXHDR_LEN);

        memset(txhdr, 0, MLXSW_TXHDR_LEN);

        mlxsw_tx_hdr_version_set(txhdr, MLXSW_TXHDR_VERSION_1);
        mlxsw_tx_hdr_ctl_set(txhdr, MLXSW_TXHDR_ETH_CTL);
        mlxsw_tx_hdr_proto_set(txhdr, MLXSW_TXHDR_PROTO_ETH);
        mlxsw_tx_hdr_swid_set(txhdr, 0);
        mlxsw_tx_hdr_control_tclass_set(txhdr, 1);
        mlxsw_tx_hdr_port_mid_set(txhdr, tx_info->local_port);
        mlxsw_tx_hdr_type_set(txhdr, MLXSW_TXHDR_TYPE_CONTROL);
}

static int mlxsw_sp_base_mac_get(struct mlxsw_sp *mlxsw_sp)
{
        char spad_pl[MLXSW_REG_SPAD_LEN];
        int err;

        err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(spad), spad_pl);
        if (err)
                return err;
        mlxsw_reg_spad_base_mac_memcpy_from(spad_pl, mlxsw_sp->base_mac);
        return 0;
}

static int mlxsw_sp_span_init(struct mlxsw_sp *mlxsw_sp)
{
        struct mlxsw_resources *resources;
        int i;

        resources = mlxsw_core_resources_get(mlxsw_sp->core);
        if (!resources->max_span_valid)
                return -EIO;

        mlxsw_sp->span.entries_count = resources->max_span;
        mlxsw_sp->span.entries = kcalloc(mlxsw_sp->span.entries_count,
                                         sizeof(struct mlxsw_sp_span_entry),
                                         GFP_KERNEL);
        if (!mlxsw_sp->span.entries)
                return -ENOMEM;

        for (i = 0; i < mlxsw_sp->span.entries_count; i++)
                INIT_LIST_HEAD(&mlxsw_sp->span.entries[i].bound_ports_list);

        return 0;
}

static void mlxsw_sp_span_fini(struct mlxsw_sp *mlxsw_sp)
{
        int i;

        for (i = 0; i < mlxsw_sp->span.entries_count; i++) {
                struct mlxsw_sp_span_entry *curr = &mlxsw_sp->span.entries[i];

                WARN_ON_ONCE(!list_empty(&curr->bound_ports_list));
        }
        kfree(mlxsw_sp->span.entries);
}

static struct mlxsw_sp_span_entry *
mlxsw_sp_span_entry_create(struct mlxsw_sp_port *port)
{
        struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
        struct mlxsw_sp_span_entry *span_entry;
        char mpat_pl[MLXSW_REG_MPAT_LEN];
        u8 local_port = port->local_port;
        int index;
        int i;
        int err;

        /* find a free entry to use */
        index = -1;
        for (i = 0; i < mlxsw_sp->span.entries_count; i++) {
                if (!mlxsw_sp->span.entries[i].used) {
                        index = i;
                        span_entry = &mlxsw_sp->span.entries[i];
                        break;
                }
        }
        if (index < 0)
                return NULL;

        /* create a new port analayzer entry for local_port */
        mlxsw_reg_mpat_pack(mpat_pl, index, local_port, true);
        err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpat), mpat_pl);
        if (err)
                return NULL;

        span_entry->used = true;
        span_entry->id = index;
        span_entry->ref_count = 1;
        span_entry->local_port = local_port;
        return span_entry;
}

static void mlxsw_sp_span_entry_destroy(struct mlxsw_sp *mlxsw_sp,
                                        struct mlxsw_sp_span_entry *span_entry)
{
        u8 local_port = span_entry->local_port;
        char mpat_pl[MLXSW_REG_MPAT_LEN];
        int pa_id = span_entry->id;

        mlxsw_reg_mpat_pack(mpat_pl, pa_id, local_port, false);
        mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpat), mpat_pl);
        span_entry->used = false;
}

static struct mlxsw_sp_span_entry *
mlxsw_sp_span_entry_find(struct mlxsw_sp_port *port)
{
        struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
        int i;

        for (i = 0; i < mlxsw_sp->span.entries_count; i++) {
                struct mlxsw_sp_span_entry *curr = &mlxsw_sp->span.entries[i];

                if (curr->used && curr->local_port == port->local_port)
                        return curr;
        }
        return NULL;
}

static struct mlxsw_sp_span_entry
*mlxsw_sp_span_entry_get(struct mlxsw_sp_port *port)
{
        struct mlxsw_sp_span_entry *span_entry;

        span_entry = mlxsw_sp_span_entry_find(port);
        if (span_entry) {
                /* Already exists, just take a reference */
                span_entry->ref_count++;
                return span_entry;
        }

        return mlxsw_sp_span_entry_create(port);
}

static int mlxsw_sp_span_entry_put(struct mlxsw_sp *mlxsw_sp,
                                   struct mlxsw_sp_span_entry *span_entry)
{
        WARN_ON(!span_entry->ref_count);
        if (--span_entry->ref_count == 0)
                mlxsw_sp_span_entry_destroy(mlxsw_sp, span_entry);
        return 0;
}

static bool mlxsw_sp_span_is_egress_mirror(struct mlxsw_sp_port *port)
{
        struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
        struct mlxsw_sp_span_inspected_port *p;
        int i;

        for (i = 0; i < mlxsw_sp->span.entries_count; i++) {
                struct mlxsw_sp_span_entry *curr = &mlxsw_sp->span.entries[i];

                list_for_each_entry(p, &curr->bound_ports_list, list)
                        if (p->local_port == port->local_port &&
                            p->type == MLXSW_SP_SPAN_EGRESS)
                                return true;
        }

        return false;
}

static int mlxsw_sp_span_mtu_to_buffsize(int mtu)
{
        return MLXSW_SP_BYTES_TO_CELLS(mtu * 5 / 2) + 1;
}

static int mlxsw_sp_span_port_mtu_update(struct mlxsw_sp_port *port, u16 mtu)
{
        struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
        char sbib_pl[MLXSW_REG_SBIB_LEN];
        int err;

        /* If port is egress mirrored, the shared buffer size should be
         * updated according to the mtu value
         */
        if (mlxsw_sp_span_is_egress_mirror(port)) {
                mlxsw_reg_sbib_pack(sbib_pl, port->local_port,
                                    mlxsw_sp_span_mtu_to_buffsize(mtu));
                err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbib), sbib_pl);
                if (err) {
                        netdev_err(port->dev, "Could not update shared buffer for mirroring\n");
                        return err;
                }
        }

        return 0;
}

static struct mlxsw_sp_span_inspected_port *
mlxsw_sp_span_entry_bound_port_find(struct mlxsw_sp_port *port,
                                    struct mlxsw_sp_span_entry *span_entry)
{
        struct mlxsw_sp_span_inspected_port *p;

        list_for_each_entry(p, &span_entry->bound_ports_list, list)
                if (port->local_port == p->local_port)
                        return p;
        return NULL;
}

static int
mlxsw_sp_span_inspected_port_bind(struct mlxsw_sp_port *port,
                                  struct mlxsw_sp_span_entry *span_entry,
                                  enum mlxsw_sp_span_type type)
{
        struct mlxsw_sp_span_inspected_port *inspected_port;
        struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
        char mpar_pl[MLXSW_REG_MPAR_LEN];
        char sbib_pl[MLXSW_REG_SBIB_LEN];
        int pa_id = span_entry->id;
        int err;

        /* if it is an egress SPAN, bind a shared buffer to it */
        if (type == MLXSW_SP_SPAN_EGRESS) {
                mlxsw_reg_sbib_pack(sbib_pl, port->local_port,
                                    mlxsw_sp_span_mtu_to_buffsize(port->dev->mtu));
                err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbib), sbib_pl);
                if (err) {
                        netdev_err(port->dev, "Could not create shared buffer for mirroring\n");
                        return err;
                }
        }

        /* bind the port to the SPAN entry */
        mlxsw_reg_mpar_pack(mpar_pl, port->local_port,
                            (enum mlxsw_reg_mpar_i_e) type, true, pa_id);
        err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpar), mpar_pl);
        if (err)
                goto err_mpar_reg_write;

        inspected_port = kzalloc(sizeof(*inspected_port), GFP_KERNEL);
        if (!inspected_port) {
                err = -ENOMEM;
                goto err_inspected_port_alloc;
        }
        inspected_port->local_port = port->local_port;
        inspected_port->type = type;
        list_add_tail(&inspected_port->list, &span_entry->bound_ports_list);

        return 0;

err_mpar_reg_write:
err_inspected_port_alloc:
        if (type == MLXSW_SP_SPAN_EGRESS) {
                mlxsw_reg_sbib_pack(sbib_pl, port->local_port, 0);
                mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbib), sbib_pl);
        }
        return err;
}

static void
mlxsw_sp_span_inspected_port_unbind(struct mlxsw_sp_port *port,
                                    struct mlxsw_sp_span_entry *span_entry,
                                    enum mlxsw_sp_span_type type)
{
        struct mlxsw_sp_span_inspected_port *inspected_port;
        struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
        char mpar_pl[MLXSW_REG_MPAR_LEN];
        char sbib_pl[MLXSW_REG_SBIB_LEN];
        int pa_id = span_entry->id;

        inspected_port = mlxsw_sp_span_entry_bound_port_find(port, span_entry);
        if (!inspected_port)
                return;

        /* remove the inspected port */
        mlxsw_reg_mpar_pack(mpar_pl, port->local_port,
                            (enum mlxsw_reg_mpar_i_e) type, false, pa_id);
        mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpar), mpar_pl);

        /* remove the SBIB buffer if it was egress SPAN */
        if (type == MLXSW_SP_SPAN_EGRESS) {
                mlxsw_reg_sbib_pack(sbib_pl, port->local_port, 0);
                mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbib), sbib_pl);
        }

        mlxsw_sp_span_entry_put(mlxsw_sp, span_entry);

        list_del(&inspected_port->list);
        kfree(inspected_port);
}

static int mlxsw_sp_span_mirror_add(struct mlxsw_sp_port *from,
                                    struct mlxsw_sp_port *to,
                                    enum mlxsw_sp_span_type type)
{
        struct mlxsw_sp *mlxsw_sp = from->mlxsw_sp;
        struct mlxsw_sp_span_entry *span_entry;
        int err;

        span_entry = mlxsw_sp_span_entry_get(to);
        if (!span_entry)
                return -ENOENT;

        netdev_dbg(from->dev, "Adding inspected port to SPAN entry %d\n",
                   span_entry->id);

        err = mlxsw_sp_span_inspected_port_bind(from, span_entry, type);
        if (err)
                goto err_port_bind;

        return 0;

err_port_bind:
        mlxsw_sp_span_entry_put(mlxsw_sp, span_entry);
        return err;
}

static void mlxsw_sp_span_mirror_remove(struct mlxsw_sp_port *from,
                                        struct mlxsw_sp_port *to,
                                        enum mlxsw_sp_span_type type)
{
        struct mlxsw_sp_span_entry *span_entry;

        span_entry = mlxsw_sp_span_entry_find(to);
        if (!span_entry) {
                netdev_err(from->dev, "no span entry found\n");
                return;
        }

        netdev_dbg(from->dev, "removing inspected port from SPAN entry %d\n",
                   span_entry->id);
        mlxsw_sp_span_inspected_port_unbind(from, span_entry, type);
}

static int mlxsw_sp_port_admin_status_set(struct mlxsw_sp_port *mlxsw_sp_port,
                                          bool is_up)
{
        struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
        char paos_pl[MLXSW_REG_PAOS_LEN];

        mlxsw_reg_paos_pack(paos_pl, mlxsw_sp_port->local_port,
                            is_up ? MLXSW_PORT_ADMIN_STATUS_UP :
                            MLXSW_PORT_ADMIN_STATUS_DOWN);
        return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(paos), paos_pl);
}

static int mlxsw_sp_port_dev_addr_set(struct mlxsw_sp_port *mlxsw_sp_port,
                                      unsigned char *addr)
{
        struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
        char ppad_pl[MLXSW_REG_PPAD_LEN];

        mlxsw_reg_ppad_pack(ppad_pl, true, mlxsw_sp_port->local_port);
        mlxsw_reg_ppad_mac_memcpy_to(ppad_pl, addr);
        return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ppad), ppad_pl);
}

static int mlxsw_sp_port_dev_addr_init(struct mlxsw_sp_port *mlxsw_sp_port)
{
        struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
        unsigned char *addr = mlxsw_sp_port->dev->dev_addr;

        ether_addr_copy(addr, mlxsw_sp->base_mac);
        addr[ETH_ALEN - 1] += mlxsw_sp_port->local_port;
        return mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr);
}

static int mlxsw_sp_port_mtu_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mtu)
{
        struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
        char pmtu_pl[MLXSW_REG_PMTU_LEN];
        int max_mtu;
        int err;

        mtu += MLXSW_TXHDR_LEN + ETH_HLEN;
        mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, 0);
        err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl);
        if (err)
                return err;
        max_mtu = mlxsw_reg_pmtu_max_mtu_get(pmtu_pl);

        if (mtu > max_mtu)
                return -EINVAL;

        mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, mtu);
        return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl);
}

static int __mlxsw_sp_port_swid_set(struct mlxsw_sp *mlxsw_sp, u8 local_port,
                                    u8 swid)
{
        char pspa_pl[MLXSW_REG_PSPA_LEN];

        mlxsw_reg_pspa_pack(pspa_pl, swid, local_port);
        return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pspa), pspa_pl);
}

static int mlxsw_sp_port_swid_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 swid)
{
        struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;

        return __mlxsw_sp_port_swid_set(mlxsw_sp, mlxsw_sp_port->local_port,
                                        swid);
}

static int mlxsw_sp_port_vp_mode_set(struct mlxsw_sp_port *mlxsw_sp_port,
                                     bool enable)
{
        struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
        char svpe_pl[MLXSW_REG_SVPE_LEN];

        mlxsw_reg_svpe_pack(svpe_pl, mlxsw_sp_port->local_port, enable);
        return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svpe), svpe_pl);
}

int mlxsw_sp_port_vid_to_fid_set(struct mlxsw_sp_port *mlxsw_sp_port,
                                 enum mlxsw_reg_svfa_mt mt, bool valid, u16 fid,
                                 u16 vid)
{
        struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
        char svfa_pl[MLXSW_REG_SVFA_LEN];

        mlxsw_reg_svfa_pack(svfa_pl, mlxsw_sp_port->local_port, mt, valid,
                            fid, vid);
        return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svfa), svfa_pl);
}

int __mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port,
                                     u16 vid_begin, u16 vid_end,
                                     bool learn_enable)
{
        struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
        char *spvmlr_pl;
        int err;

        spvmlr_pl = kmalloc(MLXSW_REG_SPVMLR_LEN, GFP_KERNEL);
        if (!spvmlr_pl)
                return -ENOMEM;
        mlxsw_reg_spvmlr_pack(spvmlr_pl, mlxsw_sp_port->local_port, vid_begin,
                              vid_end, learn_enable);
        err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvmlr), spvmlr_pl);
        kfree(spvmlr_pl);
        return err;
}

static int mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port,
                                          u16 vid, bool learn_enable)
{
        return __mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, vid,
                                                learn_enable);
}

static int
mlxsw_sp_port_system_port_mapping_set(struct mlxsw_sp_port *mlxsw_sp_port)
{
        struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
        char sspr_pl[MLXSW_REG_SSPR_LEN];

        mlxsw_reg_sspr_pack(sspr_pl, mlxsw_sp_port->local_port);
        return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sspr), sspr_pl);
}

static int mlxsw_sp_port_module_info_get(struct mlxsw_sp *mlxsw_sp,
                                         u8 local_port, u8 *p_module,
                                         u8 *p_width, u8 *p_lane)
{
        char pmlp_pl[MLXSW_REG_PMLP_LEN];
        int err;

        mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
        err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
        if (err)
                return err;
        *p_module = mlxsw_reg_pmlp_module_get(pmlp_pl, 0);
        *p_width = mlxsw_reg_pmlp_width_get(pmlp_pl);
        *p_lane = mlxsw_reg_pmlp_tx_lane_get(pmlp_pl, 0);
        return 0;
}

static int mlxsw_sp_port_module_map(struct mlxsw_sp *mlxsw_sp, u8 local_port,
                                    u8 module, u8 width, u8 lane)
{
        char pmlp_pl[MLXSW_REG_PMLP_LEN];
        int i;

        mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
        mlxsw_reg_pmlp_width_set(pmlp_pl, width);
        for (i = 0; i < width; i++) {
                mlxsw_reg_pmlp_module_set(pmlp_pl, i, module);
                mlxsw_reg_pmlp_tx_lane_set(pmlp_pl, i, lane + i);  /* Rx & Tx */
        }

        return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
}

static int mlxsw_sp_port_module_unmap(struct mlxsw_sp *mlxsw_sp, u8 local_port)
{
        char pmlp_pl[MLXSW_REG_PMLP_LEN];

        mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
        mlxsw_reg_pmlp_width_set(pmlp_pl, 0);
        return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
}

static int mlxsw_sp_port_open(struct net_device *dev)
{
        struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
        int err;

        err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true);
        if (err)
                return err;
        netif_start_queue(dev);
        return 0;
}

static int mlxsw_sp_port_stop(struct net_device *dev)
{
        struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);

        netif_stop_queue(dev);
        return mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
}

static netdev_tx_t mlxsw_sp_port_xmit(struct sk_buff *skb,
                                      struct net_device *dev)
{
        struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
        struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
        struct mlxsw_sp_port_pcpu_stats *pcpu_stats;
        const struct mlxsw_tx_info tx_info = {
                .local_port = mlxsw_sp_port->local_port,
                .is_emad = false,
        };
        u64 len;
        int err;

        if (mlxsw_core_skb_transmit_busy(mlxsw_sp->core, &tx_info))
                return NETDEV_TX_BUSY;

        if (unlikely(skb_headroom(skb) < MLXSW_TXHDR_LEN)) {
                struct sk_buff *skb_orig = skb;

                skb = skb_realloc_headroom(skb, MLXSW_TXHDR_LEN);
                if (!skb) {
                        this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
                        dev_kfree_skb_any(skb_orig);
                        return NETDEV_TX_OK;
                }
        }

        if (eth_skb_pad(skb)) {
                this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
                return NETDEV_TX_OK;
        }

        mlxsw_sp_txhdr_construct(skb, &tx_info);
        /* TX header is consumed by HW on the way so we shouldn't count its
         * bytes as being sent.
         */
        len = skb->len - MLXSW_TXHDR_LEN;

        /* Due to a race we might fail here because of a full queue. In that
         * unlikely case we simply drop the packet.
         */
        err = mlxsw_core_skb_transmit(mlxsw_sp->core, skb, &tx_info);

        if (!err) {
                pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats);
                u64_stats_update_begin(&pcpu_stats->syncp);
                pcpu_stats->tx_packets++;
                pcpu_stats->tx_bytes += len;
                u64_stats_update_end(&pcpu_stats->syncp);
        } else {
                this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
                dev_kfree_skb_any(skb);
        }
        return NETDEV_TX_OK;
}

static void mlxsw_sp_set_rx_mode(struct net_device *dev)
{
}

static int mlxsw_sp_port_set_mac_address(struct net_device *dev, void *p)
{
        struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
        struct sockaddr *addr = p;
        int err;

        if (!is_valid_ether_addr(addr->sa_data))
                return -EADDRNOTAVAIL;

        err = mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr->sa_data);
        if (err)
                return err;
        memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
        return 0;
}

static void mlxsw_sp_pg_buf_pack(char *pbmc_pl, int pg_index, int mtu,
                                 bool pause_en, bool pfc_en, u16 delay)
{
        u16 pg_size = 2 * MLXSW_SP_BYTES_TO_CELLS(mtu);

        delay = pfc_en ? mlxsw_sp_pfc_delay_get(mtu, delay) :
                         MLXSW_SP_PAUSE_DELAY;

        if (pause_en || pfc_en)
                mlxsw_reg_pbmc_lossless_buffer_pack(pbmc_pl, pg_index,
                                                    pg_size + delay, pg_size);
        else
                mlxsw_reg_pbmc_lossy_buffer_pack(pbmc_pl, pg_index, pg_size);
}

int __mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port, int mtu,
                                 u8 *prio_tc, bool pause_en,
                                 struct ieee_pfc *my_pfc)
{
        struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
        u8 pfc_en = !!my_pfc ? my_pfc->pfc_en : 0;
        u16 delay = !!my_pfc ? my_pfc->delay : 0;
        char pbmc_pl[MLXSW_REG_PBMC_LEN];
        int i, j, err;

        mlxsw_reg_pbmc_pack(pbmc_pl, mlxsw_sp_port->local_port, 0, 0);
        err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl);
        if (err)
                return err;

        for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
                bool configure = false;
                bool pfc = false;

                for (j = 0; j < IEEE_8021QAZ_MAX_TCS; j++) {
                        if (prio_tc[j] == i) {
                                pfc = pfc_en & BIT(j);
                                configure = true;
                                break;
                        }
                }

                if (!configure)
                        continue;
                mlxsw_sp_pg_buf_pack(pbmc_pl, i, mtu, pause_en, pfc, delay);
        }

        return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl);
}

static int mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port,
                                      int mtu, bool pause_en)
{
        u8 def_prio_tc[IEEE_8021QAZ_MAX_TCS] = {0};
        bool dcb_en = !!mlxsw_sp_port->dcb.ets;
        struct ieee_pfc *my_pfc;
        u8 *prio_tc;

        prio_tc = dcb_en ? mlxsw_sp_port->dcb.ets->prio_tc : def_prio_tc;
        my_pfc = dcb_en ? mlxsw_sp_port->dcb.pfc : NULL;

        return __mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, prio_tc,
                                            pause_en, my_pfc);
}

static int mlxsw_sp_port_change_mtu(struct net_device *dev, int mtu)
{
        struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
        bool pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port);
        int err;

        err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, pause_en);
        if (err)
                return err;
        err = mlxsw_sp_span_port_mtu_update(mlxsw_sp_port, mtu);
        if (err)
                goto err_span_port_mtu_update;
        err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, mtu);
        if (err)
                goto err_port_mtu_set;
        dev->mtu = mtu;
        return 0;

err_port_mtu_set:
        mlxsw_sp_span_port_mtu_update(mlxsw_sp_port, dev->mtu);
err_span_port_mtu_update:
        mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
        return err;
}

static int
mlxsw_sp_port_get_sw_stats64(const struct net_device *dev,
                             struct rtnl_link_stats64 *stats)
{
        struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
        struct mlxsw_sp_port_pcpu_stats *p;
        u64 rx_packets, rx_bytes, tx_packets, tx_bytes;
        u32 tx_dropped = 0;
        unsigned int start;
        int i;

        for_each_possible_cpu(i) {
                p = per_cpu_ptr(mlxsw_sp_port->pcpu_stats, i);
                do {
                        start = u64_stats_fetch_begin_irq(&p->syncp);
                        rx_packets      = p->rx_packets;
                        rx_bytes        = p->rx_bytes;
                        tx_packets      = p->tx_packets;
                        tx_bytes        = p->tx_bytes;
                } while (u64_stats_fetch_retry_irq(&p->syncp, start));

                stats->rx_packets       += rx_packets;
                stats->rx_bytes         += rx_bytes;
                stats->tx_packets       += tx_packets;
                stats->tx_bytes         += tx_bytes;
                /* tx_dropped is u32, updated without syncp protection. */
                tx_dropped      += p->tx_dropped;
        }
        stats->tx_dropped       = tx_dropped;
        return 0;
}

static bool mlxsw_sp_port_has_offload_stats(int attr_id)
{
        switch (attr_id) {
        case IFLA_OFFLOAD_XSTATS_CPU_HIT:
                return true;
        }

        return false;
}

static int mlxsw_sp_port_get_offload_stats(int attr_id, const struct net_device *dev,
                                           void *sp)
{
        switch (attr_id) {
        case IFLA_OFFLOAD_XSTATS_CPU_HIT:
                return mlxsw_sp_port_get_sw_stats64(dev, sp);
        }

        return -EINVAL;
}

static int mlxsw_sp_port_get_stats_raw(struct net_device *dev, int grp,
                                       int prio, char *ppcnt_pl)
{
        struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
        struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;

        mlxsw_reg_ppcnt_pack(ppcnt_pl, mlxsw_sp_port->local_port, grp, prio);
        return mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ppcnt), ppcnt_pl);
}

static int mlxsw_sp_port_get_hw_stats(struct net_device *dev,
                                      struct rtnl_link_stats64 *stats)
{
        char ppcnt_pl[MLXSW_REG_PPCNT_LEN];
        int err;

        err = mlxsw_sp_port_get_stats_raw(dev, MLXSW_REG_PPCNT_IEEE_8023_CNT,
                                          0, ppcnt_pl);
        if (err)
                goto out;

        stats->tx_packets =
                mlxsw_reg_ppcnt_a_frames_transmitted_ok_get(ppcnt_pl);
        stats->rx_packets =
                mlxsw_reg_ppcnt_a_frames_received_ok_get(ppcnt_pl);
        stats->tx_bytes =
                mlxsw_reg_ppcnt_a_octets_transmitted_ok_get(ppcnt_pl);
        stats->rx_bytes =
                mlxsw_reg_ppcnt_a_octets_received_ok_get(ppcnt_pl);
        stats->multicast =
                mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get(ppcnt_pl);

        stats->rx_crc_errors =
                mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get(ppcnt_pl);
        stats->rx_frame_errors =
                mlxsw_reg_ppcnt_a_alignment_errors_get(ppcnt_pl);

        stats->rx_length_errors = (
                mlxsw_reg_ppcnt_a_in_range_length_errors_get(ppcnt_pl) +
                mlxsw_reg_ppcnt_a_out_of_range_length_field_get(ppcnt_pl) +
                mlxsw_reg_ppcnt_a_frame_too_long_errors_get(ppcnt_pl));

        stats->rx_errors = (stats->rx_crc_errors +
                stats->rx_frame_errors + stats->rx_length_errors);

out:
        return err;
}

static void update_stats_cache(struct work_struct *work)
{
        struct mlxsw_sp_port *mlxsw_sp_port =
                container_of(work, struct mlxsw_sp_port,
                             hw_stats.update_dw.work);

        if (!netif_carrier_ok(mlxsw_sp_port->dev))
                goto out;

        mlxsw_sp_port_get_hw_stats(mlxsw_sp_port->dev,
                                   mlxsw_sp_port->hw_stats.cache);

out:
        mlxsw_core_schedule_dw(&mlxsw_sp_port->hw_stats.update_dw,
                               MLXSW_HW_STATS_UPDATE_TIME);
}

/* Return the stats from a cache that is updated periodically,
 * as this function might get called in an atomic context.
 */
static struct rtnl_link_stats64 *
mlxsw_sp_port_get_stats64(struct net_device *dev,
                          struct rtnl_link_stats64 *stats)
{
        struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);

        memcpy(stats, mlxsw_sp_port->hw_stats.cache, sizeof(*stats));

        return stats;
}

int mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid_begin,
                           u16 vid_end, bool is_member, bool untagged)
{
        struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
        char *spvm_pl;
        int err;

        spvm_pl = kmalloc(MLXSW_REG_SPVM_LEN, GFP_KERNEL);
        if (!spvm_pl)
                return -ENOMEM;

        mlxsw_reg_spvm_pack(spvm_pl, mlxsw_sp_port->local_port, vid_begin,
                            vid_end, is_member, untagged);
        err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvm), spvm_pl);
        kfree(spvm_pl);
        return err;
}

static int mlxsw_sp_port_vp_mode_trans(struct mlxsw_sp_port *mlxsw_sp_port)
{
        enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
        u16 vid, last_visited_vid;
        int err;

        for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
                err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, true, vid,
                                                   vid);
                if (err) {
                        last_visited_vid = vid;
                        goto err_port_vid_to_fid_set;
                }
        }

        err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, true);
        if (err) {
                last_visited_vid = VLAN_N_VID;
                goto err_port_vid_to_fid_set;
        }

        return 0;

err_port_vid_to_fid_set:
        for_each_set_bit(vid, mlxsw_sp_port->active_vlans, last_visited_vid)
                mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false, vid,
                                             vid);
        return err;
}

static int mlxsw_sp_port_vlan_mode_trans(struct mlxsw_sp_port *mlxsw_sp_port)
{
        enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
        u16 vid;
        int err;

        err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, false);
        if (err)
                return err;

        for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
                err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false,
                                                   vid, vid);
                if (err)
                        return err;
        }

        return 0;
}

static struct mlxsw_sp_port *
mlxsw_sp_port_vport_create(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
{
        struct mlxsw_sp_port *mlxsw_sp_vport;

        mlxsw_sp_vport = kzalloc(sizeof(*mlxsw_sp_vport), GFP_KERNEL);
        if (!mlxsw_sp_vport)
                return NULL;

        /* dev will be set correctly after the VLAN device is linked
         * with the real device. In case of bridge SELF invocation, dev
         * will remain as is.
         */
        mlxsw_sp_vport->dev = mlxsw_sp_port->dev;
        mlxsw_sp_vport->mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
        mlxsw_sp_vport->local_port = mlxsw_sp_port->local_port;
        mlxsw_sp_vport->stp_state = BR_STATE_FORWARDING;
        mlxsw_sp_vport->lagged = mlxsw_sp_port->lagged;
        mlxsw_sp_vport->lag_id = mlxsw_sp_port->lag_id;
        mlxsw_sp_vport->vport.vid = vid;

        list_add(&mlxsw_sp_vport->vport.list, &mlxsw_sp_port->vports_list);

        return mlxsw_sp_vport;
}

static void mlxsw_sp_port_vport_destroy(struct mlxsw_sp_port *mlxsw_sp_vport)
{
        list_del(&mlxsw_sp_vport->vport.list);
        kfree(mlxsw_sp_vport);
}

static int mlxsw_sp_port_add_vid(struct net_device *dev,
                                 __be16 __always_unused proto, u16 vid)
{
        struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
        struct mlxsw_sp_port *mlxsw_sp_vport;
        bool untagged = vid == 1;
        int err;

        /* VLAN 0 is added to HW filter when device goes up, but it is
         * reserved in our case, so simply return.
         */
        if (!vid)
                return 0;

        if (mlxsw_sp_port_vport_find(mlxsw_sp_port, vid))
                return 0;

        mlxsw_sp_vport = mlxsw_sp_port_vport_create(mlxsw_sp_port, vid);
        if (!mlxsw_sp_vport)
                return -ENOMEM;

        /* When adding the first VLAN interface on a bridged port we need to
         * transition all the active 802.1Q bridge VLANs to use explicit
         * {Port, VID} to FID mappings and set the port's mode to Virtual mode.
         */
        if (list_is_singular(&mlxsw_sp_port->vports_list)) {
                err = mlxsw_sp_port_vp_mode_trans(mlxsw_sp_port);
                if (err)
                        goto err_port_vp_mode_trans;
        }

        err = mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, true, untagged);
        if (err)
                goto err_port_add_vid;

        return 0;

err_port_add_vid:
        if (list_is_singular(&mlxsw_sp_port->vports_list))
                mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port);
err_port_vp_mode_trans:
        mlxsw_sp_port_vport_destroy(mlxsw_sp_vport);
        return err;
}

static int mlxsw_sp_port_kill_vid(struct net_device *dev,
                                  __be16 __always_unused proto, u16 vid)
{
        struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
        struct mlxsw_sp_port *mlxsw_sp_vport;
        struct mlxsw_sp_fid *f;

        /* VLAN 0 is removed from HW filter when device goes down, but
         * it is reserved in our case, so simply return.
         */
        if (!vid)
                return 0;

        mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
        if (WARN_ON(!mlxsw_sp_vport))
                return 0;

        mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, false, false);

        /* Drop FID reference. If this was the last reference the
         * resources will be freed.
         */
        f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
        if (f && !WARN_ON(!f->leave))
                f->leave(mlxsw_sp_vport);

        /* When removing the last VLAN interface on a bridged port we need to
         * transition all active 802.1Q bridge VLANs to use VID to FID
         * mappings and set port's mode to VLAN mode.
         */
        if (list_is_singular(&mlxsw_sp_port->vports_list))
                mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port);

        mlxsw_sp_port_vport_destroy(mlxsw_sp_vport);

        return 0;
}

static int mlxsw_sp_port_get_phys_port_name(struct net_device *dev, char *name,
                                            size_t len)
{
        struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
        u8 module = mlxsw_sp_port->mapping.module;
        u8 width = mlxsw_sp_port->mapping.width;
        u8 lane = mlxsw_sp_port->mapping.lane;
        int err;

        if (!mlxsw_sp_port->split)
                err = snprintf(name, len, "p%d", module + 1);
        else
                err = snprintf(name, len, "p%ds%d", module + 1,
                               lane / width);

        if (err >= len)
                return -EINVAL;

        return 0;
}

static struct mlxsw_sp_port_mall_tc_entry *
mlxsw_sp_port_mirror_entry_find(struct mlxsw_sp_port *port,
                                unsigned long cookie) {
        struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry;

        list_for_each_entry(mall_tc_entry, &port->mall_tc_list, list)
                if (mall_tc_entry->cookie == cookie)
                        return mall_tc_entry;

        return NULL;
}

static int
mlxsw_sp_port_add_cls_matchall_mirror(struct mlxsw_sp_port *mlxsw_sp_port,
                                      struct tc_cls_matchall_offload *cls,
                                      const struct tc_action *a,
                                      bool ingress)
{
        struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry;
        struct net *net = dev_net(mlxsw_sp_port->dev);
        enum mlxsw_sp_span_type span_type;
        struct mlxsw_sp_port *to_port;
        struct net_device *to_dev;
        int ifindex;
        int err;

        ifindex = tcf_mirred_ifindex(a);
        to_dev = __dev_get_by_index(net, ifindex);
        if (!to_dev) {
                netdev_err(mlxsw_sp_port->dev, "Could not find requested device\n");
                return -EINVAL;
        }

        if (!mlxsw_sp_port_dev_check(to_dev)) {
                netdev_err(mlxsw_sp_port->dev, "Cannot mirror to a non-spectrum port");
                return -ENOTSUPP;
        }
        to_port = netdev_priv(to_dev);

        mall_tc_entry = kzalloc(sizeof(*mall_tc_entry), GFP_KERNEL);
        if (!mall_tc_entry)
                return -ENOMEM;

        mall_tc_entry->cookie = cls->cookie;
        mall_tc_entry->type = MLXSW_SP_PORT_MALL_MIRROR;
        mall_tc_entry->mirror.to_local_port = to_port->local_port;
        mall_tc_entry->mirror.ingress = ingress;
        list_add_tail(&mall_tc_entry->list, &mlxsw_sp_port->mall_tc_list);

        span_type = ingress ? MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS;
        err = mlxsw_sp_span_mirror_add(mlxsw_sp_port, to_port, span_type);
        if (err)
                goto err_mirror_add;
        return 0;

err_mirror_add:
        list_del(&mall_tc_entry->list);
        kfree(mall_tc_entry);
        return err;
}

static int mlxsw_sp_port_add_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port,
                                          __be16 protocol,
                                          struct tc_cls_matchall_offload *cls,
                                          bool ingress)
{
        const struct tc_action *a;
        LIST_HEAD(actions);
        int err;

        if (!tc_single_action(cls->exts)) {
                netdev_err(mlxsw_sp_port->dev, "only singular actions are supported\n");
                return -ENOTSUPP;
        }

        tcf_exts_to_list(cls->exts, &actions);
        list_for_each_entry(a, &actions, list) {
                if (!is_tcf_mirred_mirror(a) || protocol != htons(ETH_P_ALL))
                        return -ENOTSUPP;

                err = mlxsw_sp_port_add_cls_matchall_mirror(mlxsw_sp_port, cls,
                                                            a, ingress);
                if (err)
                        return err;
        }

        return 0;
}

static void mlxsw_sp_port_del_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port,
                                           struct tc_cls_matchall_offload *cls)
{
        struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
        struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry;
        enum mlxsw_sp_span_type span_type;
        struct mlxsw_sp_port *to_port;

        mall_tc_entry = mlxsw_sp_port_mirror_entry_find(mlxsw_sp_port,
                                                        cls->cookie);
        if (!mall_tc_entry) {
                netdev_dbg(mlxsw_sp_port->dev, "tc entry not found on port\n");
                return;
        }

        switch (mall_tc_entry->type) {
        case MLXSW_SP_PORT_MALL_MIRROR:
                to_port = mlxsw_sp->ports[mall_tc_entry->mirror.to_local_port];
                span_type = mall_tc_entry->mirror.ingress ?
                                MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS;

                mlxsw_sp_span_mirror_remove(mlxsw_sp_port, to_port, span_type);
                break;
        default:
                WARN_ON(1);
        }

        list_del(&mall_tc_entry->list);
        kfree(mall_tc_entry);
}

static int mlxsw_sp_setup_tc(struct net_device *dev, u32 handle,
                             __be16 proto, struct tc_to_netdev *tc)
{
        struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
        bool ingress = TC_H_MAJ(handle) == TC_H_MAJ(TC_H_INGRESS);

        if (tc->type == TC_SETUP_MATCHALL) {
                switch (tc->cls_mall->command) {
                case TC_CLSMATCHALL_REPLACE:
                        return mlxsw_sp_port_add_cls_matchall(mlxsw_sp_port,
                                                              proto,
                                                              tc->cls_mall,
                                                              ingress);
                case TC_CLSMATCHALL_DESTROY:
                        mlxsw_sp_port_del_cls_matchall(mlxsw_sp_port,
                                                       tc->cls_mall);
                        return 0;
                default:
                        return -EINVAL;
                }
        }

        return -ENOTSUPP;
}

static const struct net_device_ops mlxsw_sp_port_netdev_ops = {
        .ndo_open               = mlxsw_sp_port_open,
        .ndo_stop               = mlxsw_sp_port_stop,
        .ndo_start_xmit         = mlxsw_sp_port_xmit,
        .ndo_setup_tc           = mlxsw_sp_setup_tc,
        .ndo_set_rx_mode        = mlxsw_sp_set_rx_mode,
        .ndo_set_mac_address    = mlxsw_sp_port_set_mac_address,
        .ndo_change_mtu         = mlxsw_sp_port_change_mtu,
        .ndo_get_stats64        = mlxsw_sp_port_get_stats64,
        .ndo_has_offload_stats  = mlxsw_sp_port_has_offload_stats,
        .ndo_get_offload_stats  = mlxsw_sp_port_get_offload_stats,
        .ndo_vlan_rx_add_vid    = mlxsw_sp_port_add_vid,
        .ndo_vlan_rx_kill_vid   = mlxsw_sp_port_kill_vid,
        .ndo_neigh_construct    = mlxsw_sp_router_neigh_construct,
        .ndo_neigh_destroy      = mlxsw_sp_router_neigh_destroy,
        .ndo_fdb_add            = switchdev_port_fdb_add,
        .ndo_fdb_del            = switchdev_port_fdb_del,
        .ndo_fdb_dump           = switchdev_port_fdb_dump,
        .ndo_bridge_setlink     = switchdev_port_bridge_setlink,
        .ndo_bridge_getlink     = switchdev_port_bridge_getlink,
        .ndo_bridge_dellink     = switchdev_port_bridge_dellink,
        .ndo_get_phys_port_name = mlxsw_sp_port_get_phys_port_name,
};

static void mlxsw_sp_port_get_drvinfo(struct net_device *dev,
                                      struct ethtool_drvinfo *drvinfo)
{
        struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
        struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;

        strlcpy(drvinfo->driver, mlxsw_sp_driver_name, sizeof(drvinfo->driver));
        strlcpy(drvinfo->version, mlxsw_sp_driver_version,
                sizeof(drvinfo->version));
        snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
                 "%d.%d.%d",
                 mlxsw_sp->bus_info->fw_rev.major,
                 mlxsw_sp->bus_info->fw_rev.minor,
                 mlxsw_sp->bus_info->fw_rev.subminor);
        strlcpy(drvinfo->bus_info, mlxsw_sp->bus_info->device_name,
                sizeof(drvinfo->bus_info));
}

static void mlxsw_sp_port_get_pauseparam(struct net_device *dev,
                                         struct ethtool_pauseparam *pause)
{
        struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);

        pause->rx_pause = mlxsw_sp_port->link.rx_pause;
        pause->tx_pause = mlxsw_sp_port->link.tx_pause;
}

static int mlxsw_sp_port_pause_set(struct mlxsw_sp_port *mlxsw_sp_port,
                                   struct ethtool_pauseparam *pause)
{
        char pfcc_pl[MLXSW_REG_PFCC_LEN];

        mlxsw_reg_pfcc_pack(pfcc_pl, mlxsw_sp_port->local_port);
        mlxsw_reg_pfcc_pprx_set(pfcc_pl, pause->rx_pause);
        mlxsw_reg_pfcc_pptx_set(pfcc_pl, pause->tx_pause);

        return mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core, MLXSW_REG(pfcc),
                               pfcc_pl);
}

static int mlxsw_sp_port_set_pauseparam(struct net_device *dev,
                                        struct ethtool_pauseparam *pause)
{
        struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
        bool pause_en = pause->tx_pause || pause->rx_pause;
        int err;

        if (mlxsw_sp_port->dcb.pfc && mlxsw_sp_port->dcb.pfc->pfc_en) {
                netdev_err(dev, "PFC already enabled on port\n");
                return -EINVAL;
        }

        if (pause->autoneg) {
                netdev_err(dev, "PAUSE frames autonegotiation isn't supported\n");
                return -EINVAL;
        }

        err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
        if (err) {
                netdev_err(dev, "Failed to configure port's headroom\n");
                return err;
        }

        err = mlxsw_sp_port_pause_set(mlxsw_sp_port, pause);
        if (err) {
                netdev_err(dev, "Failed to set PAUSE parameters\n");
                goto err_port_pause_configure;
        }

        mlxsw_sp_port->link.rx_pause = pause->rx_pause;
        mlxsw_sp_port->link.tx_pause = pause->tx_pause;

        return 0;

err_port_pause_configure:
        pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port);
        mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
        return err;
}

struct mlxsw_sp_port_hw_stats {
        char str[ETH_GSTRING_LEN];
        u64 (*getter)(char *payload);
};

static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_stats[] = {
        {
                .str = "a_frames_transmitted_ok",
                .getter = mlxsw_reg_ppcnt_a_frames_transmitted_ok_get,
        },
        {
                .str = "a_frames_received_ok",
                .getter = mlxsw_reg_ppcnt_a_frames_received_ok_get,
        },
        {
                .str = "a_frame_check_sequence_errors",
                .getter = mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get,
        },
        {
                .str = "a_alignment_errors",
                .getter = mlxsw_reg_ppcnt_a_alignment_errors_get,
        },
        {
                .str = "a_octets_transmitted_ok",
                .getter = mlxsw_reg_ppcnt_a_octets_transmitted_ok_get,
        },
        {
                .str = "a_octets_received_ok",
                .getter = mlxsw_reg_ppcnt_a_octets_received_ok_get,
        },
        {
                .str = "a_multicast_frames_xmitted_ok",
                .getter = mlxsw_reg_ppcnt_a_multicast_frames_xmitted_ok_get,
        },
        {
                .str = "a_broadcast_frames_xmitted_ok",
                .getter = mlxsw_reg_ppcnt_a_broadcast_frames_xmitted_ok_get,
        },
        {
                .str = "a_multicast_frames_received_ok",
                .getter = mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get,
        },
        {
                .str = "a_broadcast_frames_received_ok",
                .getter = mlxsw_reg_ppcnt_a_broadcast_frames_received_ok_get,
        },
        {
                .str = "a_in_range_length_errors",
                .getter = mlxsw_reg_ppcnt_a_in_range_length_errors_get,
        },
        {
                .str = "a_out_of_range_length_field",
                .getter = mlxsw_reg_ppcnt_a_out_of_range_length_field_get,
        },
        {
                .str = "a_frame_too_long_errors",
                .getter = mlxsw_reg_ppcnt_a_frame_too_long_errors_get,
        },
        {
                .str = "a_symbol_error_during_carrier",
                .getter = mlxsw_reg_ppcnt_a_symbol_error_during_carrier_get,
        },
        {
                .str = "a_mac_control_frames_transmitted",
                .getter = mlxsw_reg_ppcnt_a_mac_control_frames_transmitted_get,
        },
        {
                .str = "a_mac_control_frames_received",
                .getter = mlxsw_reg_ppcnt_a_mac_control_frames_received_get,
        },
        {
                .str = "a_unsupported_opcodes_received",
                .getter = mlxsw_reg_ppcnt_a_unsupported_opcodes_received_get,
        },
        {
                .str = "a_pause_mac_ctrl_frames_received",
                .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_received_get,
        },
        {
                .str = "a_pause_mac_ctrl_frames_xmitted",
                .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_transmitted_get,
        },
};

#define MLXSW_SP_PORT_HW_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_stats)

static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_prio_stats[] = {
        {
                .str = "rx_octets_prio",
                .getter = mlxsw_reg_ppcnt_rx_octets_get,
        },
        {
                .str = "rx_frames_prio",
                .getter = mlxsw_reg_ppcnt_rx_frames_get,
        },
        {
                .str = "tx_octets_prio",
                .getter = mlxsw_reg_ppcnt_tx_octets_get,
        },
        {
                .str = "tx_frames_prio",
                .getter = mlxsw_reg_ppcnt_tx_frames_get,
        },
        {
                .str = "rx_pause_prio",
                .getter = mlxsw_reg_ppcnt_rx_pause_get,
        },
        {
                .str = "rx_pause_duration_prio",
                .getter = mlxsw_reg_ppcnt_rx_pause_duration_get,
        },
        {
                .str = "tx_pause_prio",
                .getter = mlxsw_reg_ppcnt_tx_pause_get,
        },
        {
                .str = "tx_pause_duration_prio",
                .getter = mlxsw_reg_ppcnt_tx_pause_duration_get,
        },
};

#define MLXSW_SP_PORT_HW_PRIO_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_prio_stats)

static u64 mlxsw_reg_ppcnt_tc_transmit_queue_bytes_get(char *ppcnt_pl)
{
        u64 transmit_queue = mlxsw_reg_ppcnt_tc_transmit_queue_get(ppcnt_pl);

        return MLXSW_SP_CELLS_TO_BYTES(transmit_queue);
}

static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_tc_stats[] = {
        {
                .str = "tc_transmit_queue_tc",
                .getter = mlxsw_reg_ppcnt_tc_transmit_queue_bytes_get,
        },
        {
                .str = "tc_no_buffer_discard_uc_tc",
                .getter = mlxsw_reg_ppcnt_tc_no_buffer_discard_uc_get,
        },
};

#define MLXSW_SP_PORT_HW_TC_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_tc_stats)

#define MLXSW_SP_PORT_ETHTOOL_STATS_LEN (MLXSW_SP_PORT_HW_STATS_LEN + \
                                         (MLXSW_SP_PORT_HW_PRIO_STATS_LEN + \
                                          MLXSW_SP_PORT_HW_TC_STATS_LEN) * \
                                         IEEE_8021QAZ_MAX_TCS)

static void mlxsw_sp_port_get_prio_strings(u8 **p, int prio)
{
        int i;

        for (i = 0; i < MLXSW_SP_PORT_HW_PRIO_STATS_LEN; i++) {
                snprintf(*p, ETH_GSTRING_LEN, "%s_%d",
                         mlxsw_sp_port_hw_prio_stats[i].str, prio);
                *p += ETH_GSTRING_LEN;
        }
}

static void mlxsw_sp_port_get_tc_strings(u8 **p, int tc)
{
        int i;

        for (i = 0; i < MLXSW_SP_PORT_HW_TC_STATS_LEN; i++) {
                snprintf(*p, ETH_GSTRING_LEN, "%s_%d",
                         mlxsw_sp_port_hw_tc_stats[i].str, tc);
                *p += ETH_GSTRING_LEN;
        }
}

static void mlxsw_sp_port_get_strings(struct net_device *dev,
                                      u32 stringset, u8 *data)
{
        u8 *p = data;
        int i;

        switch (stringset) {
        case ETH_SS_STATS:
                for (i = 0; i < MLXSW_SP_PORT_HW_STATS_LEN; i++) {
                        memcpy(p, mlxsw_sp_port_hw_stats[i].str,
                               ETH_GSTRING_LEN);
                        p += ETH_GSTRING_LEN;
                }

                for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
                        mlxsw_sp_port_get_prio_strings(&p, i);

                for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
                        mlxsw_sp_port_get_tc_strings(&p, i);

                break;
        }
}

static int mlxsw_sp_port_set_phys_id(struct net_device *dev,
                                     enum ethtool_phys_id_state state)
{
        struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
        struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
        char mlcr_pl[MLXSW_REG_MLCR_LEN];
        bool active;

        switch (state) {
        case ETHTOOL_ID_ACTIVE:
                active = true;
                break;
        case ETHTOOL_ID_INACTIVE:
                active = false;
                break;
        default:
                return -EOPNOTSUPP;
        }

        mlxsw_reg_mlcr_pack(mlcr_pl, mlxsw_sp_port->local_port, active);
        return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mlcr), mlcr_pl);
}

static int
mlxsw_sp_get_hw_stats_by_group(struct mlxsw_sp_port_hw_stats **p_hw_stats,
                               int *p_len, enum mlxsw_reg_ppcnt_grp grp)
{
        switch (grp) {
        case  MLXSW_REG_PPCNT_IEEE_8023_CNT:
                *p_hw_stats = mlxsw_sp_port_hw_stats;
                *p_len = MLXSW_SP_PORT_HW_STATS_LEN;
                break;
        case MLXSW_REG_PPCNT_PRIO_CNT:
                *p_hw_stats = mlxsw_sp_port_hw_prio_stats;
                *p_len = MLXSW_SP_PORT_HW_PRIO_STATS_LEN;
                break;
        case MLXSW_REG_PPCNT_TC_CNT:
                *p_hw_stats = mlxsw_sp_port_hw_tc_stats;
                *p_len = MLXSW_SP_PORT_HW_TC_STATS_LEN;
                break;
        default:
                WARN_ON(1);
                return -ENOTSUPP;
        }
        return 0;
}

static void __mlxsw_sp_port_get_stats(struct net_device *dev,
                                      enum mlxsw_reg_ppcnt_grp grp, int prio,
                                      u64 *data, int data_index)
{
        struct mlxsw_sp_port_hw_stats *hw_stats;
        char ppcnt_pl[MLXSW_REG_PPCNT_LEN];
        int i, len;
        int err;

        err = mlxsw_sp_get_hw_stats_by_group(&hw_stats, &len, grp);
        if (err)
                return;
        mlxsw_sp_port_get_stats_raw(dev, grp, prio, ppcnt_pl);
        for (i = 0; i < len; i++)
                data[data_index + i] = hw_stats[i].getter(ppcnt_pl);
}

static void mlxsw_sp_port_get_stats(struct net_device *dev,
                                    struct ethtool_stats *stats, u64 *data)
{
        int i, data_index = 0;

        /* IEEE 802.3 Counters */
        __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_IEEE_8023_CNT, 0,
                                  data, data_index);
        data_index = MLXSW_SP_PORT_HW_STATS_LEN;

        /* Per-Priority Counters */
        for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
                __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_PRIO_CNT, i,
                                          data, data_index);
                data_index += MLXSW_SP_PORT_HW_PRIO_STATS_LEN;
        }

        /* Per-TC Counters */
        for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
                __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_TC_CNT, i,
                                          data, data_index);
                data_index += MLXSW_SP_PORT_HW_TC_STATS_LEN;
        }
}

static int mlxsw_sp_port_get_sset_count(struct net_device *dev, int sset)
{
        switch (sset) {
        case ETH_SS_STATS:
                return MLXSW_SP_PORT_ETHTOOL_STATS_LEN;
        default:
                return -EOPNOTSUPP;
        }
}

struct mlxsw_sp_port_link_mode {
        enum ethtool_link_mode_bit_indices mask_ethtool;
        u32 mask;
        u32 speed;
};

static const struct mlxsw_sp_port_link_mode mlxsw_sp_port_link_mode[] = {
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_100BASE_T,
                .mask_ethtool   = ETHTOOL_LINK_MODE_100baseT_Full_BIT,
                .speed          = SPEED_100,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_SGMII |
                                  MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX,
                .mask_ethtool   = ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
                .speed          = SPEED_1000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_T,
                .mask_ethtool   = ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
                .speed          = SPEED_10000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CX4 |
                                  MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4,
                .mask_ethtool   = ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,
                .speed          = SPEED_10000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
                                  MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
                                  MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
                                  MLXSW_REG_PTYS_ETH_SPEED_10GBASE_ER_LR,
                .mask_ethtool   = ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
                .speed          = SPEED_10000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_20GBASE_KR2,
                .mask_ethtool   = ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT,
                .speed          = SPEED_20000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4,
                .mask_ethtool   = ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT,
                .speed          = SPEED_40000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4,
                .mask_ethtool   = ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT,
                .speed          = SPEED_40000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4,
                .mask_ethtool   = ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT,
                .speed          = SPEED_40000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_LR4_ER4,
                .mask_ethtool   = ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT,
                .speed          = SPEED_40000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_CR,
                .mask_ethtool   = ETHTOOL_LINK_MODE_25000baseCR_Full_BIT,
                .speed          = SPEED_25000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_KR,
                .mask_ethtool   = ETHTOOL_LINK_MODE_25000baseKR_Full_BIT,
                .speed          = SPEED_25000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR,
                .mask_ethtool   = ETHTOOL_LINK_MODE_25000baseSR_Full_BIT,
                .speed          = SPEED_25000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR,
                .mask_ethtool   = ETHTOOL_LINK_MODE_25000baseSR_Full_BIT,
                .speed          = SPEED_25000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_CR2,
                .mask_ethtool   = ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT,
                .speed          = SPEED_50000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR2,
                .mask_ethtool   = ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT,
                .speed          = SPEED_50000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_SR2,
                .mask_ethtool   = ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT,
                .speed          = SPEED_50000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4,
                .mask_ethtool   = ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT,
                .speed          = SPEED_56000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4,
                .mask_ethtool   = ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT,
                .speed          = SPEED_56000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4,
                .mask_ethtool   = ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT,
                .speed          = SPEED_56000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4,
                .mask_ethtool   = ETHTOOL_LINK_MODE_56000baseLR4_Full_BIT,
                .speed          = SPEED_56000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4,
                .mask_ethtool   = ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT,
                .speed          = SPEED_100000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4,
                .mask_ethtool   = ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT,
                .speed          = SPEED_100000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4,
                .mask_ethtool   = ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT,
                .speed          = SPEED_100000,
        },
        {
                .mask           = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_LR4_ER4,
                .mask_ethtool   = ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT,
                .speed          = SPEED_100000,
        },
};

#define MLXSW_SP_PORT_LINK_MODE_LEN ARRAY_SIZE(mlxsw_sp_port_link_mode)

static void
mlxsw_sp_from_ptys_supported_port(u32 ptys_eth_proto,
                                  struct ethtool_link_ksettings *cmd)
{
        if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
                              MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
                              MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 |
                              MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 |
                              MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
                              MLXSW_REG_PTYS_ETH_SPEED_SGMII))
                ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);

        if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
                              MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 |
                              MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 |
                              MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 |
                              MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX))
                ethtool_link_ksettings_add_link_mode(cmd, supported, Backplane);
}

static void mlxsw_sp_from_ptys_link(u32 ptys_eth_proto, unsigned long *mode)
{
        int i;

        for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
                if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask)
                        __set_bit(mlxsw_sp_port_link_mode[i].mask_ethtool,
                                  mode);
        }
}

static void mlxsw_sp_from_ptys_speed_duplex(bool carrier_ok, u32 ptys_eth_proto,
                                            struct ethtool_link_ksettings *cmd)
{
        u32 speed = SPEED_UNKNOWN;
        u8 duplex = DUPLEX_UNKNOWN;
        int i;

        if (!carrier_ok)
                goto out;

        for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
                if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask) {
                        speed = mlxsw_sp_port_link_mode[i].speed;
                        duplex = DUPLEX_FULL;
                        break;
                }
        }
out:
        cmd->base.speed = speed;
        cmd->base.duplex = duplex;
}

static u8 mlxsw_sp_port_connector_port(u32 ptys_eth_proto)
{
        if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
                              MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 |
                              MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
                              MLXSW_REG_PTYS_ETH_SPEED_SGMII))
                return PORT_FIBRE;

        if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
                              MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 |
                              MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4))
                return PORT_DA;

        if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
                              MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 |
                              MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 |
                              MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4))
                return PORT_NONE;

        return PORT_OTHER;
}

static u32
mlxsw_sp_to_ptys_advert_link(const struct ethtool_link_ksettings *cmd)
{
        u32 ptys_proto = 0;
        int i;

        for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
                if (test_bit(mlxsw_sp_port_link_mode[i].mask_ethtool,
                             cmd->link_modes.advertising))
                        ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
        }
        return ptys_proto;
}

static u32 mlxsw_sp_to_ptys_speed(u32 speed)
{
        u32 ptys_proto = 0;
        int i;

        for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
                if (speed == mlxsw_sp_port_link_mode[i].speed)
                        ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
        }
        return ptys_proto;
}

static u32 mlxsw_sp_to_ptys_upper_speed(u32 upper_speed)
{
        u32 ptys_proto = 0;
        int i;

        for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
                if (mlxsw_sp_port_link_mode[i].speed <= upper_speed)
                        ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
        }
        return ptys_proto;
}

static void mlxsw_sp_port_get_link_supported(u32 eth_proto_cap,
                                             struct ethtool_link_ksettings *cmd)
{
        ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause);
        ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
        ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);

        mlxsw_sp_from_ptys_supported_port(eth_proto_cap, cmd);
        mlxsw_sp_from_ptys_link(eth_proto_cap, cmd->link_modes.supported);
}

static void mlxsw_sp_port_get_link_advertise(u32 eth_proto_admin, bool autoneg,
                                             struct ethtool_link_ksettings *cmd)
{
        if (!autoneg)
                return;

        ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg);
        mlxsw_sp_from_ptys_link(eth_proto_admin, cmd->link_modes.advertising);
}

static void
mlxsw_sp_port_get_link_lp_advertise(u32 eth_proto_lp, u8 autoneg_status,
                                    struct ethtool_link_ksettings *cmd)
{
        if (autoneg_status != MLXSW_REG_PTYS_AN_STATUS_OK || !eth_proto_lp)
                return;

        ethtool_link_ksettings_add_link_mode(cmd, lp_advertising, Autoneg);
        mlxsw_sp_from_ptys_link(eth_proto_lp, cmd->link_modes.lp_advertising);
}

static int mlxsw_sp_port_get_link_ksettings(struct net_device *dev,
                                            struct ethtool_link_ksettings *cmd)
{
        u32 eth_proto_cap, eth_proto_admin, eth_proto_oper, eth_proto_lp;
        struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
        struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
        char ptys_pl[MLXSW_REG_PTYS_LEN];
        u8 autoneg_status;

        bool autoneg;
        int err;

        autoneg = mlxsw_sp_port->link.autoneg;
        mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, 0);
        err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
        if (err)
                return err;
        mlxsw_reg_ptys_unpack(ptys_pl, &eth_proto_cap, &eth_proto_admin,
                              &eth_proto_oper);

        mlxsw_sp_port_get_link_supported(eth_proto_cap, cmd);

        mlxsw_sp_port_get_link_advertise(eth_proto_admin, autoneg, cmd);

        eth_proto_lp = mlxsw_reg_ptys_eth_proto_lp_advertise_get(ptys_pl);
        autoneg_status = mlxsw_reg_ptys_an_status_get(ptys_pl);
        mlxsw_sp_port_get_link_lp_advertise(eth_proto_lp, autoneg_status, cmd);

        cmd->base.autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE;
        cmd->base.port = mlxsw_sp_port_connector_port(eth_proto_oper);
        mlxsw_sp_from_ptys_speed_duplex(netif_carrier_ok(dev), eth_proto_oper,
                                        cmd);

        return 0;
}

static int
mlxsw_sp_port_set_link_ksettings(struct net_device *dev,
                                 const struct ethtool_link_ksettings *cmd)
{
        struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
        struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
        char ptys_pl[MLXSW_REG_PTYS_LEN];
        u32 eth_proto_cap, eth_proto_new;
        bool autoneg;
        int err;

        mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, 0);
        err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
        if (err)
                return err;
        mlxsw_reg_ptys_unpack(ptys_pl, &eth_proto_cap, NULL, NULL);

        autoneg = cmd->base.autoneg == AUTONEG_ENABLE;
        eth_proto_new = autoneg ?
                mlxsw_sp_to_ptys_advert_link(cmd) :
                mlxsw_sp_to_ptys_speed(cmd->base.speed);

        eth_proto_new = eth_proto_new & eth_proto_cap;
        if (!eth_proto_new) {
                netdev_err(dev, "No supported speed requested\n");
                return -EINVAL;
        }

        mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, eth_proto_new);
        err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
        if (err)
                return err;

        if (!netif_running(dev))
                return 0;

        mlxsw_sp_port->link.autoneg = autoneg;

        mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
        mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true);

        return 0;
}

static const struct ethtool_ops mlxsw_sp_port_ethtool_ops = {
        .get_drvinfo            = mlxsw_sp_port_get_drvinfo,
        .get_link               = ethtool_op_get_link,
        .get_pauseparam         = mlxsw_sp_port_get_pauseparam,
        .set_pauseparam         = mlxsw_sp_port_set_pauseparam,
        .get_strings            = mlxsw_sp_port_get_strings,
        .set_phys_id            = mlxsw_sp_port_set_phys_id,
        .get_ethtool_stats      = mlxsw_sp_port_get_stats,
        .get_sset_count         = mlxsw_sp_port_get_sset_count,
        .get_link_ksettings     = mlxsw_sp_port_get_link_ksettings,
        .set_link_ksettings     = mlxsw_sp_port_set_link_ksettings,
};

static int
mlxsw_sp_port_speed_by_width_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 width)
{
        struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
        u32 upper_speed = MLXSW_SP_PORT_BASE_SPEED * width;
        char ptys_pl[MLXSW_REG_PTYS_LEN];
        u32 eth_proto_admin;

        eth_proto_admin = mlxsw_sp_to_ptys_upper_speed(upper_speed);
        mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port,
                            eth_proto_admin);
        return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
}

int mlxsw_sp_port_ets_set(struct mlxsw_sp_port *mlxsw_sp_port,
                          enum mlxsw_reg_qeec_hr hr, u8 index, u8 next_index,
                          bool dwrr, u8 dwrr_weight)
{
        struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
        char qeec_pl[MLXSW_REG_QEEC_LEN];

        mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
                            next_index);
        mlxsw_reg_qeec_de_set(qeec_pl, true);
        mlxsw_reg_qeec_dwrr_set(qeec_pl, dwrr);
        mlxsw_reg_qeec_dwrr_weight_set(qeec_pl, dwrr_weight);
        return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
}

int mlxsw_sp_port_ets_maxrate_set(struct mlxsw_sp_port *mlxsw_sp_port,
                                  enum mlxsw_reg_qeec_hr hr, u8 index,
                                  u8 next_index, u32 maxrate)
{
        struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
        char qeec_pl[MLXSW_REG_QEEC_LEN];

        mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
                            next_index);
        mlxsw_reg_qeec_mase_set(qeec_pl, true);
        mlxsw_reg_qeec_max_shaper_rate_set(qeec_pl, maxrate);
        return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
}

int mlxsw_sp_port_prio_tc_set(struct mlxsw_sp_port *mlxsw_sp_port,
                              u8 switch_prio, u8 tclass)
{
        struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
        char qtct_pl[MLXSW_REG_QTCT_LEN];

        mlxsw_reg_qtct_pack(qtct_pl, mlxsw_sp_port->local_port, switch_prio,
                            tclass);
        return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qtct), qtct_pl);
}

static int mlxsw_sp_port_ets_init(struct mlxsw_sp_port *mlxsw_sp_port)
{
        int err, i;

        /* Setup the elements hierarcy, so that each TC is linked to
         * one subgroup, which are all member in the same group.
         */
        err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
                                    MLXSW_REG_QEEC_HIERARCY_GROUP, 0, 0, false,
                                    0);
        if (err)
                return err;
        for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
                err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
                                            MLXSW_REG_QEEC_HIERARCY_SUBGROUP, i,
                                            0, false, 0);
                if (err)
                        return err;
        }
        for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
                err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
                                            MLXSW_REG_QEEC_HIERARCY_TC, i, i,
                                            false, 0);
                if (err)
                        return err;
        }

        /* Make sure the max shaper is disabled in all hierarcies that
         * support it.
         */
        err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
                                            MLXSW_REG_QEEC_HIERARCY_PORT, 0, 0,
                                            MLXSW_REG_QEEC_MAS_DIS);
        if (err)
                return err;
        for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
                err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
                                                    MLXSW_REG_QEEC_HIERARCY_SUBGROUP,
                                                    i, 0,
                                                    MLXSW_REG_QEEC_MAS_DIS);
                if (err)
                        return err;
        }
        for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
                err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
                                                    MLXSW_REG_QEEC_HIERARCY_TC,
                                                    i, i,
                                                    MLXSW_REG_QEEC_MAS_DIS);
                if (err)
                        return err;
        }

        /* Map all priorities to traffic class 0. */
        for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
                err = mlxsw_sp_port_prio_tc_set(mlxsw_sp_port, i, 0);
                if (err)
                        return err;
        }

        return 0;
}

static int mlxsw_sp_port_pvid_vport_create(struct mlxsw_sp_port *mlxsw_sp_port)
{
        mlxsw_sp_port->pvid = 1;

        return mlxsw_sp_port_add_vid(mlxsw_sp_port->dev, 0, 1);
}

static int mlxsw_sp_port_pvid_vport_destroy(struct mlxsw_sp_port *mlxsw_sp_port)
{
        return mlxsw_sp_port_kill_vid(mlxsw_sp_port->dev, 0, 1);
}

static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port,
                                bool split, u8 module, u8 width, u8 lane)
{
        struct mlxsw_sp_port *mlxsw_sp_port;
        struct net_device *dev;
        size_t bytes;
        int err;

        dev = alloc_etherdev(sizeof(struct mlxsw_sp_port));
        if (!dev)
                return -ENOMEM;
        mlxsw_sp_port = netdev_priv(dev);
        mlxsw_sp_port->dev = dev;
        mlxsw_sp_port->mlxsw_sp = mlxsw_sp;
        mlxsw_sp_port->local_port = local_port;
        mlxsw_sp_port->split = split;
        mlxsw_sp_port->mapping.module = module;
        mlxsw_sp_port->mapping.width = width;
        mlxsw_sp_port->mapping.lane = lane;
        mlxsw_sp_port->link.autoneg = 1;
        bytes = DIV_ROUND_UP(VLAN_N_VID, BITS_PER_BYTE);
        mlxsw_sp_port->active_vlans = kzalloc(bytes, GFP_KERNEL);
        if (!mlxsw_sp_port->active_vlans) {
                err = -ENOMEM;
                goto err_port_active_vlans_alloc;
        }
        mlxsw_sp_port->untagged_vlans = kzalloc(bytes, GFP_KERNEL);
        if (!mlxsw_sp_port->untagged_vlans) {
                err = -ENOMEM;
                goto err_port_untagged_vlans_alloc;
        }
        INIT_LIST_HEAD(&mlxsw_sp_port->vports_list);
        INIT_LIST_HEAD(&mlxsw_sp_port->mall_tc_list);

        mlxsw_sp_port->pcpu_stats =
                netdev_alloc_pcpu_stats(struct mlxsw_sp_port_pcpu_stats);
        if (!mlxsw_sp_port->pcpu_stats) {
                err = -ENOMEM;
                goto err_alloc_stats;
        }

        mlxsw_sp_port->hw_stats.cache =
                kzalloc(sizeof(*mlxsw_sp_port->hw_stats.cache), GFP_KERNEL);

        if (!mlxsw_sp_port->hw_stats.cache) {
                err = -ENOMEM;
                goto err_alloc_hw_stats;
        }
        INIT_DELAYED_WORK(&mlxsw_sp_port->hw_stats.update_dw,
                          &update_stats_cache);

        dev->netdev_ops = &mlxsw_sp_port_netdev_ops;
        dev->ethtool_ops = &mlxsw_sp_port_ethtool_ops;

        err = mlxsw_sp_port_swid_set(mlxsw_sp_port, 0);
        if (err) {
                dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set SWID\n",
                        mlxsw_sp_port->local_port);
                goto err_port_swid_set;
        }

        err = mlxsw_sp_port_dev_addr_init(mlxsw_sp_port);
        if (err) {
                dev_err(mlxsw_sp->bus_info->dev, "Port %d: Unable to init port mac address\n",
                        mlxsw_sp_port->local_port);
                goto err_dev_addr_init;
        }

        netif_carrier_off(dev);

        dev->features |= NETIF_F_NETNS_LOCAL | NETIF_F_LLTX | NETIF_F_SG |
                         NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_TC;
        dev->hw_features |= NETIF_F_HW_TC;

        /* Each packet needs to have a Tx header (metadata) on top all other
         * headers.
         */
        dev->needed_headroom = MLXSW_TXHDR_LEN;

        err = mlxsw_sp_port_system_port_mapping_set(mlxsw_sp_port);
        if (err) {
                dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set system port mapping\n",
                        mlxsw_sp_port->local_port);
                goto err_port_system_port_mapping_set;
        }

        err = mlxsw_sp_port_speed_by_width_set(mlxsw_sp_port, width);
        if (err) {
                dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to enable speeds\n",
                        mlxsw_sp_port->local_port);
                goto err_port_speed_by_width_set;
        }

        err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, ETH_DATA_LEN);
        if (err) {
                dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set MTU\n",
                        mlxsw_sp_port->local_port);
                goto err_port_mtu_set;
        }

        err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
        if (err)
                goto err_port_admin_status_set;

        err = mlxsw_sp_port_buffers_init(mlxsw_sp_port);
        if (err) {
                dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize buffers\n",
                        mlxsw_sp_port->local_port);
                goto err_port_buffers_init;
        }

        err = mlxsw_sp_port_ets_init(mlxsw_sp_port);
        if (err) {
                dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize ETS\n",
                        mlxsw_sp_port->local_port);
                goto err_port_ets_init;
        }

        /* ETS and buffers must be initialized before DCB. */
        err = mlxsw_sp_port_dcb_init(mlxsw_sp_port);
        if (err) {
                dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize DCB\n",
                        mlxsw_sp_port->local_port);
                goto err_port_dcb_init;
        }

        err = mlxsw_sp_port_pvid_vport_create(mlxsw_sp_port);
        if (err) {
                dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to create PVID vPort\n",
                        mlxsw_sp_port->local_port);
                goto err_port_pvid_vport_create;
        }

        mlxsw_sp_port_switchdev_init(mlxsw_sp_port);
        mlxsw_sp->ports[local_port] = mlxsw_sp_port;
        err = register_netdev(dev);
        if (err) {
                dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to register netdev\n",
                        mlxsw_sp_port->local_port);
                goto err_register_netdev;
        }

        err = mlxsw_core_port_init(mlxsw_sp->core, &mlxsw_sp_port->core_port,
                                   mlxsw_sp_port->local_port, dev,
                                   mlxsw_sp_port->split, module);
        if (err) {
                dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to init core port\n",
                        mlxsw_sp_port->local_port);
                goto err_core_port_init;
        }

        mlxsw_core_schedule_dw(&mlxsw_sp_port->hw_stats.update_dw, 0);
        return 0;

err_core_port_init:
        unregister_netdev(dev);
err_register_netdev:
        mlxsw_sp->ports[local_port] = NULL;
        mlxsw_sp_port_switchdev_fini(mlxsw_sp_port);
        mlxsw_sp_port_pvid_vport_destroy(mlxsw_sp_port);
err_port_pvid_vport_create:
        mlxsw_sp_port_dcb_fini(mlxsw_sp_port);
err_port_dcb_init:
err_port_ets_init:
err_port_buffers_init:
err_port_admin_status_set:
err_port_mtu_set:
err_port_speed_by_width_set:
err_port_system_port_mapping_set:
err_dev_addr_init:
        mlxsw_sp_port_swid_set(mlxsw_sp_port, MLXSW_PORT_SWID_DISABLED_PORT);
err_port_swid_set:
        kfree(mlxsw_sp_port->hw_stats.cache);
err_alloc_hw_stats:
        free_percpu(mlxsw_sp_port->pcpu_stats);
err_alloc_stats:
        kfree(mlxsw_sp_port->untagged_vlans);
err_port_untagged_vlans_alloc:
        kfree(mlxsw_sp_port->active_vlans);
err_port_active_vlans_alloc:
        free_netdev(dev);
        return err;
}

static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port)
{
        struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];

        if (!mlxsw_sp_port)
                return;
        cancel_delayed_work_sync(&mlxsw_sp_port->hw_stats.update_dw);
        mlxsw_core_port_fini(&mlxsw_sp_port->core_port);
        unregister_netdev(mlxsw_sp_port->dev); /* This calls ndo_stop */
        mlxsw_sp->ports[local_port] = NULL;
        mlxsw_sp_port_switchdev_fini(mlxsw_sp_port);
        mlxsw_sp_port_pvid_vport_destroy(mlxsw_sp_port);
        mlxsw_sp_port_dcb_fini(mlxsw_sp_port);
        mlxsw_sp_port_swid_set(mlxsw_sp_port, MLXSW_PORT_SWID_DISABLED_PORT);
        mlxsw_sp_port_module_unmap(mlxsw_sp, mlxsw_sp_port->local_port);
        free_percpu(mlxsw_sp_port->pcpu_stats);
        kfree(mlxsw_sp_port->hw_stats.cache);
        kfree(mlxsw_sp_port->untagged_vlans);
        kfree(mlxsw_sp_port->active_vlans);
        WARN_ON_ONCE(!list_empty(&mlxsw_sp_port->vports_list));
        free_netdev(mlxsw_sp_port->dev);
}

static void mlxsw_sp_ports_remove(struct mlxsw_sp *mlxsw_sp)
{
        int i;

        for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++)
                mlxsw_sp_port_remove(mlxsw_sp, i);
        kfree(mlxsw_sp->ports);
}

static int mlxsw_sp_ports_create(struct mlxsw_sp *mlxsw_sp)
{
        u8 module, width, lane;
        size_t alloc_size;
        int i;
        int err;

        alloc_size = sizeof(struct mlxsw_sp_port *) * MLXSW_PORT_MAX_PORTS;
        mlxsw_sp->ports = kzalloc(alloc_size, GFP_KERNEL);
        if (!mlxsw_sp->ports)
                return -ENOMEM;

        for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++) {
                err = mlxsw_sp_port_module_info_get(mlxsw_sp, i, &module,
                                                    &width, &lane);
                if (err)
                        goto err_port_module_info_get;
                if (!width)
                        continue;
                mlxsw_sp->port_to_module[i] = module;
                err = mlxsw_sp_port_create(mlxsw_sp, i, false, module, width,
                                           lane);
                if (err)
                        goto err_port_create;
        }
        return 0;

err_port_create:
err_port_module_info_get:
        for (i--; i >= 1; i--)
                mlxsw_sp_port_remove(mlxsw_sp, i);
        kfree(mlxsw_sp->ports);
        return err;
}

static u8 mlxsw_sp_cluster_base_port_get(u8 local_port)
{
        u8 offset = (local_port - 1) % MLXSW_SP_PORTS_PER_CLUSTER_MAX;

        return local_port - offset;
}

static int mlxsw_sp_port_split_create(struct mlxsw_sp *mlxsw_sp, u8 base_port,
                                      u8 module, unsigned int count)
{
        u8 width = MLXSW_PORT_MODULE_MAX_WIDTH / count;
        int err, i;

        for (i = 0; i < count; i++) {
                err = mlxsw_sp_port_module_map(mlxsw_sp, base_port + i, module,
                                               width, i * width);
                if (err)
                        goto err_port_module_map;
        }

        for (i = 0; i < count; i++) {
                err = __mlxsw_sp_port_swid_set(mlxsw_sp, base_port + i, 0);
                if (err)
                        goto err_port_swid_set;
        }

        for (i = 0; i < count; i++) {
                err = mlxsw_sp_port_create(mlxsw_sp, base_port + i, true,
                                           module, width, i * width);
                if (err)
                        goto err_port_create;
        }

        return 0;

err_port_create:
        for (i--; i >= 0; i--)
                mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
        i = count;
err_port_swid_set:
        for (i--; i >= 0; i--)
                __mlxsw_sp_port_swid_set(mlxsw_sp, base_port + i,
                                         MLXSW_PORT_SWID_DISABLED_PORT);
        i = count;
err_port_module_map:
        for (i--; i >= 0; i--)
                mlxsw_sp_port_module_unmap(mlxsw_sp, base_port + i);
        return err;
}

static void mlxsw_sp_port_unsplit_create(struct mlxsw_sp *mlxsw_sp,
                                         u8 base_port, unsigned int count)
{
        u8 local_port, module, width = MLXSW_PORT_MODULE_MAX_WIDTH;
        int i;

        /* Split by four means we need to re-create two ports, otherwise
         * only one.
         */
        count = count / 2;

        for (i = 0; i < count; i++) {
                local_port = base_port + i * 2;
                module = mlxsw_sp->port_to_module[local_port];

                mlxsw_sp_port_module_map(mlxsw_sp, local_port, module, width,
                                         0);
        }

        for (i = 0; i < count; i++)
                __mlxsw_sp_port_swid_set(mlxsw_sp, base_port + i * 2, 0);

        for (i = 0; i < count; i++) {
                local_port = base_port + i * 2;
                module = mlxsw_sp->port_to_module[local_port];

                mlxsw_sp_port_create(mlxsw_sp, local_port, false, module,
                                     width, 0);
        }
}

static int mlxsw_sp_port_split(struct mlxsw_core *mlxsw_core, u8 local_port,
                               unsigned int count)
{
        struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
        struct mlxsw_sp_port *mlxsw_sp_port;
        u8 module, cur_width, base_port;
        int i;
        int err;

        mlxsw_sp_port = mlxsw_sp->ports[local_port];
        if (!mlxsw_sp_port) {
                dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n",
                        local_port);
                return -EINVAL;
        }

        module = mlxsw_sp_port->mapping.module;
        cur_width = mlxsw_sp_port->mapping.width;

        if (count != 2 && count != 4) {
                netdev_err(mlxsw_sp_port->dev, "Port can only be split into 2 or 4 ports\n");
                return -EINVAL;
        }

        if (cur_width != MLXSW_PORT_MODULE_MAX_WIDTH) {
                netdev_err(mlxsw_sp_port->dev, "Port cannot be split further\n");
                return -EINVAL;
        }

        /* Make sure we have enough slave (even) ports for the split. */
        if (count == 2) {
                base_port = local_port;
                if (mlxsw_sp->ports[base_port + 1]) {
                        netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n");
                        return -EINVAL;
                }
        } else {
                base_port = mlxsw_sp_cluster_base_port_get(local_port);
                if (mlxsw_sp->ports[base_port + 1] ||
                    mlxsw_sp->ports[base_port + 3]) {
                        netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n");
                        return -EINVAL;
                }
        }

        for (i = 0; i < count; i++)
                mlxsw_sp_port_remove(mlxsw_sp, base_port + i);

        err = mlxsw_sp_port_split_create(mlxsw_sp, base_port, module, count);
        if (err) {
                dev_err(mlxsw_sp->bus_info->dev, "Failed to create split ports\n");
                goto err_port_split_create;
        }

        return 0;

err_port_split_create:
        mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count);
        return err;
}

static int mlxsw_sp_port_unsplit(struct mlxsw_core *mlxsw_core, u8 local_port)
{
        struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
        struct mlxsw_sp_port *mlxsw_sp_port;
        u8 cur_width, base_port;
        unsigned int count;
        int i;

        mlxsw_sp_port = mlxsw_sp->ports[local_port];
        if (!mlxsw_sp_port) {
                dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n",
                        local_port);
                return -EINVAL;
        }

        if (!mlxsw_sp_port->split) {
                netdev_err(mlxsw_sp_port->dev, "Port wasn't split\n");
                return -EINVAL;
        }

        cur_width = mlxsw_sp_port->mapping.width;
        count = cur_width == 1 ? 4 : 2;

        base_port = mlxsw_sp_cluster_base_port_get(local_port);

        /* Determine which ports to remove. */
        if (count == 2 && local_port >= base_port + 2)
                base_port = base_port + 2;

        for (i = 0; i < count; i++)
                mlxsw_sp_port_remove(mlxsw_sp, base_port + i);

        mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count);

        return 0;
}

static void mlxsw_sp_pude_event_func(const struct mlxsw_reg_info *reg,
                                     char *pude_pl, void *priv)
{
        struct mlxsw_sp *mlxsw_sp = priv;
        struct mlxsw_sp_port *mlxsw_sp_port;
        enum mlxsw_reg_pude_oper_status status;
        u8 local_port;

        local_port = mlxsw_reg_pude_local_port_get(pude_pl);
        mlxsw_sp_port = mlxsw_sp->ports[local_port];
        if (!mlxsw_sp_port)
                return;

        status = mlxsw_reg_pude_oper_status_get(pude_pl);
        if (status == MLXSW_PORT_OPER_STATUS_UP) {
                netdev_info(mlxsw_sp_port->dev, "link up\n");
                netif_carrier_on(mlxsw_sp_port->dev);
        } else {
                netdev_info(mlxsw_sp_port->dev, "link down\n");
                netif_carrier_off(mlxsw_sp_port->dev);
        }
}

static struct mlxsw_event_listener mlxsw_sp_pude_event = {
        .func = mlxsw_sp_pude_event_func,
        .trap_id = MLXSW_TRAP_ID_PUDE,
};

static int mlxsw_sp_event_register(struct mlxsw_sp *mlxsw_sp,
                                   enum mlxsw_event_trap_id trap_id)
{
        struct mlxsw_event_listener *el;
        char hpkt_pl[MLXSW_REG_HPKT_LEN];
        int err;

        switch (trap_id) {
        case MLXSW_TRAP_ID_PUDE:
                el = &mlxsw_sp_pude_event;
                break;
        }
        err = mlxsw_core_event_listener_register(mlxsw_sp->core, el, mlxsw_sp);
        if (err)
                return err;

        mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_FORWARD, trap_id);
        err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
        if (err)
                goto err_event_trap_set;

        return 0;

err_event_trap_set:
        mlxsw_core_event_listener_unregister(mlxsw_sp->core, el, mlxsw_sp);
        return err;
}

static void mlxsw_sp_event_unregister(struct mlxsw_sp *mlxsw_sp,
                                      enum mlxsw_event_trap_id trap_id)
{
        struct mlxsw_event_listener *el;

        switch (trap_id) {
        case MLXSW_TRAP_ID_PUDE:
                el = &mlxsw_sp_pude_event;
                break;
        }
        mlxsw_core_event_listener_unregister(mlxsw_sp->core, el, mlxsw_sp);
}

static void mlxsw_sp_rx_listener_func(struct sk_buff *skb, u8 local_port,
                                      void *priv)
{
        struct mlxsw_sp *mlxsw_sp = priv;
        struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
        struct mlxsw_sp_port_pcpu_stats *pcpu_stats;

        if (unlikely(!mlxsw_sp_port)) {
                dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: skb received for non-existent port\n",
                                     local_port);
                return;
        }

        skb->dev = mlxsw_sp_port->dev;

        pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats);
        u64_stats_update_begin(&pcpu_stats->syncp);
        pcpu_stats->rx_packets++;
        pcpu_stats->rx_bytes += skb->len;
        u64_stats_update_end(&pcpu_stats->syncp);

        skb->protocol = eth_type_trans(skb, skb->dev);
        netif_receive_skb(skb);
}

static void mlxsw_sp_rx_listener_mark_func(struct sk_buff *skb, u8 local_port,
                                           void *priv)
{
        skb->offload_fwd_mark = 1;
        return mlxsw_sp_rx_listener_func(skb, local_port, priv);
}

#define MLXSW_SP_RXL(_func, _trap_id, _action)                  \
        {                                                       \
                .func = _func,                                  \
                .local_port = MLXSW_PORT_DONT_CARE,             \
                .trap_id = MLXSW_TRAP_ID_##_trap_id,            \
                .action = MLXSW_REG_HPKT_ACTION_##_action,      \
        }

static const struct mlxsw_rx_listener mlxsw_sp_rx_listener[] = {
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_func, FDB_MC, TRAP_TO_CPU),
        /* Traps for specific L2 packet types, not trapped as FDB MC */
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_func, STP, TRAP_TO_CPU),
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_func, LACP, TRAP_TO_CPU),
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_func, EAPOL, TRAP_TO_CPU),
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_func, LLDP, TRAP_TO_CPU),
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_func, MMRP, TRAP_TO_CPU),
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_func, MVRP, TRAP_TO_CPU),
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_func, RPVST, TRAP_TO_CPU),
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_mark_func, DHCP, MIRROR_TO_CPU),
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_mark_func, IGMP_QUERY, MIRROR_TO_CPU),
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_func, IGMP_V1_REPORT, TRAP_TO_CPU),
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_func, IGMP_V2_REPORT, TRAP_TO_CPU),
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_func, IGMP_V2_LEAVE, TRAP_TO_CPU),
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_func, IGMP_V3_REPORT, TRAP_TO_CPU),
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_mark_func, ARPBC, MIRROR_TO_CPU),
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_mark_func, ARPUC, MIRROR_TO_CPU),
        /* L3 traps */
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_func, MTUERROR, TRAP_TO_CPU),
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_func, TTLERROR, TRAP_TO_CPU),
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_func, LBERROR, TRAP_TO_CPU),
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_mark_func, OSPF, TRAP_TO_CPU),
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_func, IP2ME, TRAP_TO_CPU),
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_func, RTR_INGRESS0, TRAP_TO_CPU),
        MLXSW_SP_RXL(mlxsw_sp_rx_listener_func, HOST_MISS_IPV4, TRAP_TO_CPU),
};

static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp)
{
        char htgt_pl[MLXSW_REG_HTGT_LEN];
        char hpkt_pl[MLXSW_REG_HPKT_LEN];
        int i;
        int err;

        mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_RX);
        err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(htgt), htgt_pl);
        if (err)
                return err;

        mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_CTRL);
        err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(htgt), htgt_pl);
        if (err)
                return err;

        for (i = 0; i < ARRAY_SIZE(mlxsw_sp_rx_listener); i++) {
                err = mlxsw_core_rx_listener_register(mlxsw_sp->core,
                                                      &mlxsw_sp_rx_listener[i],
                                                      mlxsw_sp);
                if (err)
                        goto err_rx_listener_register;

                mlxsw_reg_hpkt_pack(hpkt_pl, mlxsw_sp_rx_listener[i].action,
                                    mlxsw_sp_rx_listener[i].trap_id);
                err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
                if (err)
                        goto err_rx_trap_set;
        }
        return 0;

err_rx_trap_set:
        mlxsw_core_rx_listener_unregister(mlxsw_sp->core,
                                          &mlxsw_sp_rx_listener[i],
                                          mlxsw_sp);
err_rx_listener_register:
        for (i--; i >= 0; i--) {
                mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_DISCARD,
                                    mlxsw_sp_rx_listener[i].trap_id);
                mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);

                mlxsw_core_rx_listener_unregister(mlxsw_sp->core,
                                                  &mlxsw_sp_rx_listener[i],
                                                  mlxsw_sp);
        }
        return err;
}

static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp)
{
        char hpkt_pl[MLXSW_REG_HPKT_LEN];
        int i;

        for (i = 0; i < ARRAY_SIZE(mlxsw_sp_rx_listener); i++) {
                mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_DISCARD,
                                    mlxsw_sp_rx_listener[i].trap_id);
                mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);

                mlxsw_core_rx_listener_unregister(mlxsw_sp->core,
                                                  &mlxsw_sp_rx_listener[i],
                                                  mlxsw_sp);
        }
}

static int __mlxsw_sp_flood_init(struct mlxsw_core *mlxsw_core,
                                 enum mlxsw_reg_sfgc_type type,
                                 enum mlxsw_reg_sfgc_bridge_type bridge_type)
{
        enum mlxsw_flood_table_type table_type;
        enum mlxsw_sp_flood_table flood_table;
        char sfgc_pl[MLXSW_REG_SFGC_LEN];

        if (bridge_type == MLXSW_REG_SFGC_BRIDGE_TYPE_VFID)
                table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID;
        else
                table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST;

        if (type == MLXSW_REG_SFGC_TYPE_UNKNOWN_UNICAST)
                flood_table = MLXSW_SP_FLOOD_TABLE_UC;
        else
                flood_table = MLXSW_SP_FLOOD_TABLE_BM;

        mlxsw_reg_sfgc_pack(sfgc_pl, type, bridge_type, table_type,
                            flood_table);
        return mlxsw_reg_write(mlxsw_core, MLXSW_REG(sfgc), sfgc_pl);
}

static int mlxsw_sp_flood_init(struct mlxsw_sp *mlxsw_sp)
{
        int type, err;

        for (type = 0; type < MLXSW_REG_SFGC_TYPE_MAX; type++) {
                if (type == MLXSW_REG_SFGC_TYPE_RESERVED)
                        continue;

                err = __mlxsw_sp_flood_init(mlxsw_sp->core, type,
                                            MLXSW_REG_SFGC_BRIDGE_TYPE_VFID);
                if (err)
                        return err;

                err = __mlxsw_sp_flood_init(mlxsw_sp->core, type,
                                            MLXSW_REG_SFGC_BRIDGE_TYPE_1Q_FID);
                if (err)
                        return err;
        }

        return 0;
}

static int mlxsw_sp_lag_init(struct mlxsw_sp *mlxsw_sp)
{
        struct mlxsw_resources *resources;
        char slcr_pl[MLXSW_REG_SLCR_LEN];
        int err;

        mlxsw_reg_slcr_pack(slcr_pl, MLXSW_REG_SLCR_LAG_HASH_SMAC |
                                     MLXSW_REG_SLCR_LAG_HASH_DMAC |
                                     MLXSW_REG_SLCR_LAG_HASH_ETHERTYPE |
                                     MLXSW_REG_SLCR_LAG_HASH_VLANID |
                                     MLXSW_REG_SLCR_LAG_HASH_SIP |
                                     MLXSW_REG_SLCR_LAG_HASH_DIP |
                                     MLXSW_REG_SLCR_LAG_HASH_SPORT |
                                     MLXSW_REG_SLCR_LAG_HASH_DPORT |
                                     MLXSW_REG_SLCR_LAG_HASH_IPPROTO);
        err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcr), slcr_pl);
        if (err)
                return err;

        resources = mlxsw_core_resources_get(mlxsw_sp->core);
        if (!(resources->max_lag_valid && resources->max_ports_in_lag_valid))
                return -EIO;

        mlxsw_sp->lags = kcalloc(resources->max_lag,
                                 sizeof(struct mlxsw_sp_upper),
                                 GFP_KERNEL);
        if (!mlxsw_sp->lags)
                return -ENOMEM;

        return 0;
}

static void mlxsw_sp_lag_fini(struct mlxsw_sp *mlxsw_sp)
{
        kfree(mlxsw_sp->lags);
}

static int mlxsw_sp_init(struct mlxsw_core *mlxsw_core,
                         const struct mlxsw_bus_info *mlxsw_bus_info)
{
        struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
        int err;

        mlxsw_sp->core = mlxsw_core;
        mlxsw_sp->bus_info = mlxsw_bus_info;
        INIT_LIST_HEAD(&mlxsw_sp->fids);
        INIT_LIST_HEAD(&mlxsw_sp->vfids.list);
        INIT_LIST_HEAD(&mlxsw_sp->br_mids.list);

        err = mlxsw_sp_base_mac_get(mlxsw_sp);
        if (err) {
                dev_err(mlxsw_sp->bus_info->dev, "Failed to get base mac\n");
                return err;
        }

        err = mlxsw_sp_event_register(mlxsw_sp, MLXSW_TRAP_ID_PUDE);
        if (err) {
                dev_err(mlxsw_sp->bus_info->dev, "Failed to register for PUDE events\n");
                return err;
        }

        err = mlxsw_sp_traps_init(mlxsw_sp);
        if (err) {
                dev_err(mlxsw_sp->bus_info->dev, "Failed to set traps for RX\n");
                goto err_rx_listener_register;
        }

        err = mlxsw_sp_flood_init(mlxsw_sp);
        if (err) {
                dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize flood tables\n");
                goto err_flood_init;
        }

        err = mlxsw_sp_buffers_init(mlxsw_sp);
        if (err) {
                dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize buffers\n");
                goto err_buffers_init;
        }

        err = mlxsw_sp_lag_init(mlxsw_sp);
        if (err) {
                dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize LAG\n");
                goto err_lag_init;
        }

        err = mlxsw_sp_switchdev_init(mlxsw_sp);
        if (err) {
                dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize switchdev\n");
                goto err_switchdev_init;
        }

        err = mlxsw_sp_router_init(mlxsw_sp);
        if (err) {
                dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize router\n");
                goto err_router_init;
        }

        err = mlxsw_sp_span_init(mlxsw_sp);
        if (err) {
                dev_err(mlxsw_sp->bus_info->dev, "Failed to init span system\n");
                goto err_span_init;
        }

        err = mlxsw_sp_ports_create(mlxsw_sp);
        if (err) {
                dev_err(mlxsw_sp->bus_info->dev, "Failed to create ports\n");
                goto err_ports_create;
        }

        return 0;