/*
 * Copyright (c) 2016, Mellanox Technologies. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - 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.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <linux/dim.h>
#include <linux/debugfs.h>
#include <linux/mlx5/fs.h>
#include <net/netdev_lock.h>
#include <net/switchdev.h>
#include <net/pkt_cls.h>
#include <net/act_api.h>
#include <net/devlink.h>

#include "eswitch.h"
#include "en.h"
#include "en/dim.h"
#include "en_rep.h"
#include "en/params.h"
#include "en/txrx.h"
#include "en_tc.h"
#include "en/rep/tc.h"
#include "en/rep/neigh.h"
#include "en/rep/bridge.h"
#include "en/devlink.h"
#include "fs_core.h"
#include "lib/mlx5.h"
#include "lib/devcom.h"
#include "lib/vxlan.h"
#define CREATE_TRACE_POINTS
#include "diag/en_rep_tracepoint.h"
#include "diag/reporter_vnic.h"
#include "en_accel/ipsec.h"
#include "en/tc/int_port.h"
#include "en/ptp.h"
#include "en/fs_ethtool.h"

#define MLX5E_REP_PARAMS_DEF_LOG_SQ_SIZE \
        max(0x7, MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE)
#define MLX5E_REP_PARAMS_DEF_NUM_CHANNELS 1
#define MLX5E_REP_PARAMS_DEF_LOG_RQ_SIZE 0x8

static const char mlx5e_rep_driver_name[] = "mlx5e_rep";

static void mlx5e_rep_get_drvinfo(struct net_device *dev,
                                  struct ethtool_drvinfo *drvinfo)
{
        struct mlx5e_priv *priv = netdev_priv(dev);
        struct mlx5_core_dev *mdev = priv->mdev;
        int count;

        strscpy(drvinfo->driver, mlx5e_rep_driver_name,
                sizeof(drvinfo->driver));
        count = snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
                         "%d.%d.%04d (%.16s)", fw_rev_maj(mdev),
                         fw_rev_min(mdev), fw_rev_sub(mdev), mdev->board_id);
        if (count >= sizeof(drvinfo->fw_version))
                snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
                         "%d.%d.%04d", fw_rev_maj(mdev),
                         fw_rev_min(mdev), fw_rev_sub(mdev));
}

static const struct counter_desc sw_rep_stats_desc[] = {
        { MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_packets) },
        { MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_bytes) },
        { MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_packets) },
        { MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_bytes) },
};

static const struct counter_desc vport_rep_stats_desc[] = {
        { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats, vport_rx_packets) },
        { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats, vport_rx_bytes) },
        { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats, vport_tx_packets) },
        { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats, vport_tx_bytes) },
        { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats,
                             rx_vport_rdma_unicast_packets) },
        { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats, rx_vport_rdma_unicast_bytes) },
        { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats,
                             tx_vport_rdma_unicast_packets) },
        { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats, tx_vport_rdma_unicast_bytes) },
        { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats,
                             rx_vport_rdma_multicast_packets) },
        { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats,
                             rx_vport_rdma_multicast_bytes) },
        { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats,
                             tx_vport_rdma_multicast_packets) },
        { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats,
                             tx_vport_rdma_multicast_bytes) },
};

static const struct counter_desc vport_rep_loopback_stats_desc[] = {
        { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats,
                             vport_loopback_packets) },
        { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats,
                             vport_loopback_bytes) },
};

#define NUM_VPORT_REP_SW_COUNTERS ARRAY_SIZE(sw_rep_stats_desc)
#define NUM_VPORT_REP_HW_COUNTERS ARRAY_SIZE(vport_rep_stats_desc)
#define NUM_VPORT_REP_LOOPBACK_COUNTERS(dev) \
        (MLX5_CAP_GEN(dev, vport_counter_local_loopback) ? \
         ARRAY_SIZE(vport_rep_loopback_stats_desc) : 0)

static MLX5E_DECLARE_STATS_GRP_OP_NUM_STATS(sw_rep)
{
        return NUM_VPORT_REP_SW_COUNTERS;
}

static MLX5E_DECLARE_STATS_GRP_OP_FILL_STRS(sw_rep)
{
        int i;

        for (i = 0; i < NUM_VPORT_REP_SW_COUNTERS; i++)
                ethtool_puts(data, sw_rep_stats_desc[i].format);
}

static MLX5E_DECLARE_STATS_GRP_OP_FILL_STATS(sw_rep)
{
        int i;

        for (i = 0; i < NUM_VPORT_REP_SW_COUNTERS; i++)
                mlx5e_ethtool_put_stat(
                        data, MLX5E_READ_CTR64_CPU(&priv->stats.sw,
                                                   sw_rep_stats_desc, i));
}

static MLX5E_DECLARE_STATS_GRP_OP_UPDATE_STATS(sw_rep)
{
        struct mlx5e_sw_stats *s = &priv->stats.sw;
        struct rtnl_link_stats64 stats64 = {};

        memset(s, 0, sizeof(*s));
        mlx5e_fold_sw_stats64(priv, &stats64);

        s->rx_packets = stats64.rx_packets;
        s->rx_bytes   = stats64.rx_bytes;
        s->tx_packets = stats64.tx_packets;
        s->tx_bytes   = stats64.tx_bytes;
        s->tx_queue_dropped = stats64.tx_dropped;
}

static MLX5E_DECLARE_STATS_GRP_OP_NUM_STATS(vport_rep)
{
        return NUM_VPORT_REP_HW_COUNTERS +
               NUM_VPORT_REP_LOOPBACK_COUNTERS(priv->mdev);
}

static MLX5E_DECLARE_STATS_GRP_OP_FILL_STRS(vport_rep)
{
        int i;

        for (i = 0; i < NUM_VPORT_REP_HW_COUNTERS; i++)
                ethtool_puts(data, vport_rep_stats_desc[i].format);
        for (i = 0; i < NUM_VPORT_REP_LOOPBACK_COUNTERS(priv->mdev); i++)
                ethtool_puts(data, vport_rep_loopback_stats_desc[i].format);
}

static MLX5E_DECLARE_STATS_GRP_OP_FILL_STATS(vport_rep)
{
        int i;

        for (i = 0; i < NUM_VPORT_REP_HW_COUNTERS; i++)
                mlx5e_ethtool_put_stat(
                        data, MLX5E_READ_CTR64_CPU(&priv->stats.rep_stats,
                                                   vport_rep_stats_desc, i));
        for (i = 0; i < NUM_VPORT_REP_LOOPBACK_COUNTERS(priv->mdev); i++)
                mlx5e_ethtool_put_stat(
                        data,
                        MLX5E_READ_CTR64_CPU(&priv->stats.rep_stats,
                                             vport_rep_loopback_stats_desc, i));
}

static MLX5E_DECLARE_STATS_GRP_OP_UPDATE_STATS(vport_rep)
{
        struct mlx5e_rep_stats *rep_stats = &priv->stats.rep_stats;
        int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out);
        struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
        struct mlx5e_rep_priv *rpriv = priv->ppriv;
        struct mlx5_eswitch_rep *rep = rpriv->rep;
        u32 *out;
        int err;

        out = kvzalloc(outlen, GFP_KERNEL);
        if (!out)
                return;

        err = mlx5_core_query_vport_counter(esw->dev, 1, rep->vport - 1, 0, out);
        if (err) {
                netdev_warn(priv->netdev, "vport %d error %d reading stats\n",
                            rep->vport, err);
                goto out;
        }

        #define MLX5_GET_CTR(p, x) \
                MLX5_GET64(query_vport_counter_out, p, x)
        /* flip tx/rx as we are reporting the counters for the switch vport */
        rep_stats->vport_rx_packets =
                MLX5_GET_CTR(out, transmitted_ib_unicast.packets) +
                MLX5_GET_CTR(out, transmitted_eth_unicast.packets) +
                MLX5_GET_CTR(out, transmitted_ib_multicast.packets) +
                MLX5_GET_CTR(out, transmitted_eth_multicast.packets) +
                MLX5_GET_CTR(out, transmitted_eth_broadcast.packets);

        rep_stats->vport_tx_packets =
                MLX5_GET_CTR(out, received_ib_unicast.packets) +
                MLX5_GET_CTR(out, received_eth_unicast.packets) +
                MLX5_GET_CTR(out, received_ib_multicast.packets) +
                MLX5_GET_CTR(out, received_eth_multicast.packets) +
                MLX5_GET_CTR(out, received_eth_broadcast.packets);

        rep_stats->vport_rx_bytes =
                MLX5_GET_CTR(out, transmitted_ib_unicast.octets) +
                MLX5_GET_CTR(out, transmitted_eth_unicast.octets) +
                MLX5_GET_CTR(out, transmitted_ib_multicast.octets) +
                MLX5_GET_CTR(out, transmitted_eth_broadcast.octets);

        rep_stats->vport_tx_bytes =
                MLX5_GET_CTR(out, received_ib_unicast.octets) +
                MLX5_GET_CTR(out, received_eth_unicast.octets) +
                MLX5_GET_CTR(out, received_ib_multicast.octets) +
                MLX5_GET_CTR(out, received_eth_multicast.octets) +
                MLX5_GET_CTR(out, received_eth_broadcast.octets);

        rep_stats->rx_vport_rdma_unicast_packets =
                MLX5_GET_CTR(out, transmitted_ib_unicast.packets);
        rep_stats->tx_vport_rdma_unicast_packets =
                MLX5_GET_CTR(out, received_ib_unicast.packets);
        rep_stats->rx_vport_rdma_unicast_bytes =
                MLX5_GET_CTR(out, transmitted_ib_unicast.octets);
        rep_stats->tx_vport_rdma_unicast_bytes =
                MLX5_GET_CTR(out, received_ib_unicast.octets);
        rep_stats->rx_vport_rdma_multicast_packets =
                MLX5_GET_CTR(out, transmitted_ib_multicast.packets);
        rep_stats->tx_vport_rdma_multicast_packets =
                MLX5_GET_CTR(out, received_ib_multicast.packets);
        rep_stats->rx_vport_rdma_multicast_bytes =
                MLX5_GET_CTR(out, transmitted_ib_multicast.octets);
        rep_stats->tx_vport_rdma_multicast_bytes =
                MLX5_GET_CTR(out, received_ib_multicast.octets);

        if (MLX5_CAP_GEN(priv->mdev, vport_counter_local_loopback)) {
                rep_stats->vport_loopback_packets =
                        MLX5_GET_CTR(out, local_loopback.packets);
                rep_stats->vport_loopback_bytes =
                        MLX5_GET_CTR(out, local_loopback.octets);
        }

out:
        kvfree(out);
}

static int mlx5e_rep_query_aggr_q_counter(struct mlx5_core_dev *dev, int vport, void *out)
{
        u32 in[MLX5_ST_SZ_DW(query_q_counter_in)] = {};

        MLX5_SET(query_q_counter_in, in, opcode, MLX5_CMD_OP_QUERY_Q_COUNTER);
        MLX5_SET(query_q_counter_in, in, other_vport, 1);
        MLX5_SET(query_q_counter_in, in, vport_number, vport);
        MLX5_SET(query_q_counter_in, in, aggregate, 1);

        return mlx5_cmd_exec_inout(dev, query_q_counter, in, out);
}

static void mlx5e_rep_update_vport_q_counter(struct mlx5e_priv *priv)
{
        struct mlx5e_rep_stats *rep_stats = &priv->stats.rep_stats;
        u32 out[MLX5_ST_SZ_DW(query_q_counter_out)] = {};
        struct mlx5e_rep_priv *rpriv = priv->ppriv;
        struct mlx5_eswitch_rep *rep = rpriv->rep;
        int err;

        if (!MLX5_CAP_GEN(priv->mdev, q_counter_other_vport) ||
            !MLX5_CAP_GEN(priv->mdev, q_counter_aggregation))
                return;

        err = mlx5e_rep_query_aggr_q_counter(priv->mdev, rep->vport, out);
        if (err) {
                netdev_warn(priv->netdev, "failed reading stats on vport %d, error %d\n",
                            rep->vport, err);
                return;
        }

        rep_stats->rx_vport_out_of_buffer = MLX5_GET(query_q_counter_out, out, out_of_buffer);
}

static void mlx5e_rep_get_strings(struct net_device *dev,
                                  u32 stringset, u8 *data)
{
        struct mlx5e_priv *priv = netdev_priv(dev);

        switch (stringset) {
        case ETH_SS_STATS:
                mlx5e_stats_fill_strings(priv, data);
                break;
        }
}

static void mlx5e_rep_get_ethtool_stats(struct net_device *dev,
                                        struct ethtool_stats *stats, u64 *data)
{
        struct mlx5e_priv *priv = netdev_priv(dev);

        mlx5e_ethtool_get_ethtool_stats(priv, stats, data);
}

static int mlx5e_rep_get_sset_count(struct net_device *dev, int sset)
{
        struct mlx5e_priv *priv = netdev_priv(dev);

        switch (sset) {
        case ETH_SS_STATS:
                return mlx5e_stats_total_num(priv);
        default:
                return -EOPNOTSUPP;
        }
}

static void
mlx5e_rep_get_ringparam(struct net_device *dev,
                        struct ethtool_ringparam *param,
                        struct kernel_ethtool_ringparam *kernel_param,
                        struct netlink_ext_ack *extack)
{
        struct mlx5e_priv *priv = netdev_priv(dev);

        mlx5e_ethtool_get_ringparam(priv, param, kernel_param);
}

static int
mlx5e_rep_set_ringparam(struct net_device *dev,
                        struct ethtool_ringparam *param,
                        struct kernel_ethtool_ringparam *kernel_param,
                        struct netlink_ext_ack *extack)
{
        struct mlx5e_priv *priv = netdev_priv(dev);

        return mlx5e_ethtool_set_ringparam(priv, param, extack);
}

static void mlx5e_rep_get_channels(struct net_device *dev,
                                   struct ethtool_channels *ch)
{
        struct mlx5e_priv *priv = netdev_priv(dev);

        mlx5e_ethtool_get_channels(priv, ch);
}

static int mlx5e_rep_set_channels(struct net_device *dev,
                                  struct ethtool_channels *ch)
{
        struct mlx5e_priv *priv = netdev_priv(dev);

        return mlx5e_ethtool_set_channels(priv, ch);
}

static int mlx5e_rep_get_coalesce(struct net_device *netdev,
                                  struct ethtool_coalesce *coal,
                                  struct kernel_ethtool_coalesce *kernel_coal,
                                  struct netlink_ext_ack *extack)
{
        struct mlx5e_priv *priv = netdev_priv(netdev);

        return mlx5e_ethtool_get_coalesce(priv, coal, kernel_coal, extack);
}

static int mlx5e_rep_set_coalesce(struct net_device *netdev,
                                  struct ethtool_coalesce *coal,
                                  struct kernel_ethtool_coalesce *kernel_coal,
                                  struct netlink_ext_ack *extack)
{
        struct mlx5e_priv *priv = netdev_priv(netdev);

        return mlx5e_ethtool_set_coalesce(priv, coal, kernel_coal, extack);
}

static u32 mlx5e_rep_get_rxfh_key_size(struct net_device *netdev)
{
        struct mlx5e_priv *priv = netdev_priv(netdev);

        return mlx5e_ethtool_get_rxfh_key_size(priv);
}

static u32 mlx5e_rep_get_rxfh_indir_size(struct net_device *netdev)
{
        struct mlx5e_priv *priv = netdev_priv(netdev);

        return mlx5e_ethtool_get_rxfh_indir_size(priv);
}

static const struct ethtool_ops mlx5e_rep_ethtool_ops = {
        .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
                                     ETHTOOL_COALESCE_MAX_FRAMES |
                                     ETHTOOL_COALESCE_USE_ADAPTIVE,
        .op_needs_rtnl     = ETHTOOL_OP_NEEDS_RTNL_SCHANNELS |
                             ETHTOOL_OP_NEEDS_RTNL_SRINGPARAM |
                             ETHTOOL_OP_NEEDS_RTNL_GLINK,
        .get_drvinfo       = mlx5e_rep_get_drvinfo,
        .get_link          = ethtool_op_get_link,
        .get_strings       = mlx5e_rep_get_strings,
        .get_sset_count    = mlx5e_rep_get_sset_count,
        .get_ethtool_stats = mlx5e_rep_get_ethtool_stats,
        .get_ringparam     = mlx5e_rep_get_ringparam,
        .set_ringparam     = mlx5e_rep_set_ringparam,
        .get_channels      = mlx5e_rep_get_channels,
        .set_channels      = mlx5e_rep_set_channels,
        .get_coalesce      = mlx5e_rep_get_coalesce,
        .set_coalesce      = mlx5e_rep_set_coalesce,
        .get_per_queue_coalesce = mlx5e_get_per_queue_coalesce,
        .set_per_queue_coalesce = mlx5e_set_per_queue_coalesce,
        .get_rxfh_key_size   = mlx5e_rep_get_rxfh_key_size,
        .get_rxfh_indir_size = mlx5e_rep_get_rxfh_indir_size,
};

static void mlx5e_sqs2vport_stop(struct mlx5_eswitch *esw,
                                 struct mlx5_eswitch_rep *rep)
{
        struct mlx5e_rep_sq *rep_sq, *tmp;
        struct mlx5e_rep_sq_peer *sq_peer;
        struct mlx5e_rep_priv *rpriv;
        unsigned long i;

        if (esw->mode != MLX5_ESWITCH_OFFLOADS)
                return;

        rpriv = mlx5e_rep_to_rep_priv(rep);
        list_for_each_entry_safe(rep_sq, tmp, &rpriv->vport_sqs_list, list) {
                mlx5_eswitch_del_send_to_vport_rule(rep_sq->send_to_vport_rule);
                xa_for_each(&rep_sq->sq_peer, i, sq_peer) {
                        if (sq_peer->rule)
                                mlx5_eswitch_del_send_to_vport_rule(sq_peer->rule);

                        xa_erase(&rep_sq->sq_peer, i);
                        kfree(sq_peer);
                }

                xa_destroy(&rep_sq->sq_peer);
                list_del(&rep_sq->list);
                kfree(rep_sq);
        }
}

static int mlx5e_sqs2vport_add_peers_rules(struct mlx5_eswitch *esw, struct mlx5_eswitch_rep *rep,
                                           struct mlx5e_rep_sq *rep_sq, int i)
{
        struct mlx5_flow_handle *flow_rule;
        struct mlx5_devcom_comp_dev *tmp;
        struct mlx5_eswitch *peer_esw;

        mlx5_devcom_for_each_peer_entry(esw->devcom, peer_esw, tmp) {
                u16 peer_rule_idx = MLX5_CAP_GEN(peer_esw->dev, vhca_id);
                struct mlx5e_rep_sq_peer *sq_peer;
                int err;

                sq_peer = kzalloc_obj(*sq_peer);
                if (!sq_peer)
                        return -ENOMEM;

                flow_rule = mlx5_eswitch_add_send_to_vport_rule(peer_esw, esw,
                                                                rep, rep_sq->sqn);
                if (IS_ERR(flow_rule)) {
                        kfree(sq_peer);
                        return PTR_ERR(flow_rule);
                }

                sq_peer->rule = flow_rule;
                sq_peer->peer = peer_esw;
                err = xa_insert(&rep_sq->sq_peer, peer_rule_idx, sq_peer, GFP_KERNEL);
                if (err) {
                        kfree(sq_peer);
                        mlx5_eswitch_del_send_to_vport_rule(flow_rule);
                        return err;
                }
        }

        return 0;
}

static int mlx5e_sqs2vport_start(struct mlx5_eswitch *esw,
                                 struct mlx5_eswitch_rep *rep,
                                 u32 *sqns_array, int sqns_num)
{
        struct mlx5_flow_handle *flow_rule;
        struct mlx5e_rep_priv *rpriv;
        struct mlx5e_rep_sq *rep_sq;
        bool devcom_locked = false;
        int err;
        int i;

        if (esw->mode != MLX5_ESWITCH_OFFLOADS)
                return 0;

        rpriv = mlx5e_rep_to_rep_priv(rep);

        if (mlx5_devcom_comp_is_ready(esw->devcom) &&
            mlx5_devcom_for_each_peer_begin(esw->devcom))
                devcom_locked = true;

        for (i = 0; i < sqns_num; i++) {
                rep_sq = kzalloc_obj(*rep_sq);
                if (!rep_sq) {
                        err = -ENOMEM;
                        goto out_err;
                }

                /* Add re-inject rule to the PF/representor sqs */
                flow_rule = mlx5_eswitch_add_send_to_vport_rule(esw, esw, rep,
                                                                sqns_array[i]);
                if (IS_ERR(flow_rule)) {
                        err = PTR_ERR(flow_rule);
                        kfree(rep_sq);
                        goto out_err;
                }
                rep_sq->send_to_vport_rule = flow_rule;
                rep_sq->sqn = sqns_array[i];

                xa_init(&rep_sq->sq_peer);
                if (devcom_locked) {
                        err = mlx5e_sqs2vport_add_peers_rules(esw, rep, rep_sq, i);
                        if (err) {
                                mlx5_eswitch_del_send_to_vport_rule(rep_sq->send_to_vport_rule);
                                xa_destroy(&rep_sq->sq_peer);
                                kfree(rep_sq);
                                goto out_err;
                        }
                }

                list_add(&rep_sq->list, &rpriv->vport_sqs_list);
        }

        if (devcom_locked)
                mlx5_devcom_for_each_peer_end(esw->devcom);

        return 0;

out_err:
        mlx5e_sqs2vport_stop(esw, rep);

        if (devcom_locked)
                mlx5_devcom_for_each_peer_end(esw->devcom);

        return err;
}

static int
mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv)
{
        int sqs_per_channel = mlx5e_get_dcb_num_tc(&priv->channels.params);
        struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
        bool is_uplink_rep = mlx5e_is_uplink_rep(priv);
        struct mlx5e_rep_priv *rpriv = priv->ppriv;
        struct mlx5_eswitch_rep *rep = rpriv->rep;
        int n, tc, nch, num_sqs = 0;
        struct mlx5e_channel *c;
        int err = -ENOMEM;
        bool ptp_sq;
        u32 *sqs;

        ptp_sq = !!(priv->channels.ptp &&
                    MLX5E_GET_PFLAG(&priv->channels.params, MLX5E_PFLAG_TX_PORT_TS));
        nch = priv->channels.num + ptp_sq;
        /* +2 for xdpsqs, they don't exist on the ptp channel but will not be
         * counted for by num_sqs.
         */
        if (is_uplink_rep)
                sqs_per_channel += 2;

        sqs = kvcalloc(nch * sqs_per_channel, sizeof(*sqs), GFP_KERNEL);
        if (!sqs)
                goto out;

        for (n = 0; n < priv->channels.num; n++) {
                c = priv->channels.c[n];
                for (tc = 0; tc < c->num_tc; tc++)
                        sqs[num_sqs++] = c->sq[tc].sqn;

                if (is_uplink_rep) {
                        if (c->xdp)
                                sqs[num_sqs++] = c->rq_xdpsq.sqn;

                        if (c->xdpsq)
                                sqs[num_sqs++] = c->xdpsq->sqn;
                }
        }
        if (ptp_sq) {
                struct mlx5e_ptp *ptp_ch = priv->channels.ptp;

                for (tc = 0; tc < ptp_ch->num_tc; tc++)
                        sqs[num_sqs++] = ptp_ch->ptpsq[tc].txqsq.sqn;
        }

        err = mlx5e_sqs2vport_start(esw, rep, sqs, num_sqs);
        kvfree(sqs);

out:
        if (err)
                netdev_warn(priv->netdev, "Failed to add SQs FWD rules %d\n", err);
        return err;
}

static void
mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv *priv)
{
        struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
        struct mlx5e_rep_priv *rpriv = priv->ppriv;
        struct mlx5_eswitch_rep *rep = rpriv->rep;

        mlx5e_sqs2vport_stop(esw, rep);
}

static int
mlx5e_rep_add_meta_tunnel_rule(struct mlx5e_priv *priv)
{
        struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
        struct mlx5e_rep_priv *rpriv = priv->ppriv;
        struct mlx5_eswitch_rep *rep = rpriv->rep;
        struct mlx5_flow_handle *flow_rule;
        struct mlx5_flow_group *g;

        g = esw->fdb_table.offloads.send_to_vport_meta_grp;
        if (!g)
                return 0;

        flow_rule = mlx5_eswitch_add_send_to_vport_meta_rule(esw, rep->vport);
        if (IS_ERR(flow_rule))
                return PTR_ERR(flow_rule);

        rpriv->send_to_vport_meta_rule = flow_rule;

        return 0;
}

static void
mlx5e_rep_del_meta_tunnel_rule(struct mlx5e_priv *priv)
{
        struct mlx5e_rep_priv *rpriv = priv->ppriv;

        if (rpriv->send_to_vport_meta_rule)
                mlx5_eswitch_del_send_to_vport_meta_rule(rpriv->send_to_vport_meta_rule);
}

void mlx5e_rep_activate_channels(struct mlx5e_priv *priv)
{
        mlx5e_add_sqs_fwd_rules(priv);
        mlx5e_rep_add_meta_tunnel_rule(priv);
}

void mlx5e_rep_deactivate_channels(struct mlx5e_priv *priv)
{
        mlx5e_rep_del_meta_tunnel_rule(priv);
        mlx5e_remove_sqs_fwd_rules(priv);
}

static int mlx5e_rep_open(struct net_device *dev)
{
        struct mlx5e_priv *priv = netdev_priv(dev);
        struct mlx5e_rep_priv *rpriv = priv->ppriv;
        struct mlx5_eswitch_rep *rep = rpriv->rep;
        int err;

        mutex_lock(&priv->state_lock);
        err = mlx5e_open_locked(dev);
        if (err)
                goto unlock;

        if (!mlx5_modify_vport_admin_state(priv->mdev,
                                           MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
                                           rep->vport, 1,
                                           MLX5_VPORT_ADMIN_STATE_UP))
                netif_carrier_on(dev);

unlock:
        mutex_unlock(&priv->state_lock);
        return err;
}

static int mlx5e_rep_close(struct net_device *dev)
{
        struct mlx5e_priv *priv = netdev_priv(dev);
        struct mlx5e_rep_priv *rpriv = priv->ppriv;
        struct mlx5_eswitch_rep *rep = rpriv->rep;
        int ret;

        mutex_lock(&priv->state_lock);
        mlx5_modify_vport_admin_state(priv->mdev,
                                      MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
                                      rep->vport, 1,
                                      MLX5_VPORT_ADMIN_STATE_DOWN);
        ret = mlx5e_close_locked(dev);
        mutex_unlock(&priv->state_lock);
        return ret;
}

bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv)
{
        struct mlx5e_rep_priv *rpriv = priv->ppriv;
        struct mlx5_eswitch_rep *rep;

        if (!MLX5_ESWITCH_MANAGER(priv->mdev))
                return false;

        if (!rpriv) /* non vport rep mlx5e instances don't use this field */
                return false;

        rep = rpriv->rep;
        return (rep->vport == MLX5_VPORT_UPLINK);
}

bool mlx5e_rep_has_offload_stats(const struct net_device *dev, int attr_id)
{
        switch (attr_id) {
        case IFLA_OFFLOAD_XSTATS_CPU_HIT:
                        return true;
        }

        return false;
}

static int
mlx5e_get_sw_stats64(const struct net_device *dev,
                     struct rtnl_link_stats64 *stats)
{
        struct mlx5e_priv *priv = netdev_priv(dev);

        mlx5e_fold_sw_stats64(priv, stats);
        return 0;
}

int mlx5e_rep_get_offload_stats(int attr_id, const struct net_device *dev,
                                void *sp)
{
        switch (attr_id) {
        case IFLA_OFFLOAD_XSTATS_CPU_HIT:
                return mlx5e_get_sw_stats64(dev, sp);
        }

        return -EINVAL;
}

static void
mlx5e_rep_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
{
        struct mlx5e_priv *priv = netdev_priv(dev);

        /* update HW stats in background for next time */
        mlx5e_queue_update_stats(priv);
        mlx5e_stats_copy_rep_stats(stats, &priv->stats.rep_stats);
}

static int mlx5e_rep_change_mtu(struct net_device *netdev, int new_mtu)
{
        return mlx5e_change_mtu(netdev, new_mtu, NULL);
}

static int mlx5e_rep_change_carrier(struct net_device *dev, bool new_carrier)
{
        struct mlx5e_priv *priv = netdev_priv(dev);
        struct mlx5e_rep_priv *rpriv = priv->ppriv;
        struct mlx5_eswitch_rep *rep = rpriv->rep;
        int err;

        if (new_carrier) {
                err = mlx5_modify_vport_admin_state(priv->mdev, MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
                                                    rep->vport, 1, MLX5_VPORT_ADMIN_STATE_UP);
                if (err)
                        return err;
                netif_carrier_on(dev);
        } else {
                err = mlx5_modify_vport_admin_state(priv->mdev, MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
                                                    rep->vport, 1, MLX5_VPORT_ADMIN_STATE_DOWN);
                if (err)
                        return err;
                netif_carrier_off(dev);
        }
        return 0;
}

static const struct net_device_ops mlx5e_netdev_ops_rep = {
        .ndo_open                = mlx5e_rep_open,
        .ndo_stop                = mlx5e_rep_close,
        .ndo_start_xmit          = mlx5e_xmit,
        .ndo_setup_tc            = mlx5e_rep_setup_tc,
        .ndo_set_mac_address     = eth_mac_addr,
        .ndo_get_stats64         = mlx5e_rep_get_stats,
        .ndo_has_offload_stats   = mlx5e_rep_has_offload_stats,
        .ndo_get_offload_stats   = mlx5e_rep_get_offload_stats,
        .ndo_change_mtu          = mlx5e_rep_change_mtu,
        .ndo_change_carrier      = mlx5e_rep_change_carrier,
};

bool mlx5e_eswitch_uplink_rep(const struct net_device *netdev)
{
        return netdev->netdev_ops == &mlx5e_netdev_ops &&
               mlx5e_is_uplink_rep(netdev_priv(netdev));
}

bool mlx5e_eswitch_vf_rep(const struct net_device *netdev)
{
        return netdev->netdev_ops == &mlx5e_netdev_ops_rep;
}

/* One indirect TIR set for outer. Inner not supported in reps. */
#define REP_NUM_INDIR_TIRS MLX5E_NUM_INDIR_TIRS

static int mlx5e_rep_max_nch_limit(struct mlx5_core_dev *mdev)
{
        int max_tir_num = 1 << MLX5_CAP_GEN(mdev, log_max_tir);
        int num_vports = mlx5_eswitch_get_total_vports(mdev);

        return (max_tir_num - mlx5e_get_pf_num_tirs(mdev)
                - (num_vports * REP_NUM_INDIR_TIRS)) / num_vports;
}

static void mlx5e_build_rep_params(struct net_device *netdev)
{
        const bool take_rtnl = netdev->reg_state == NETREG_REGISTERED;
        struct mlx5e_priv *priv = netdev_priv(netdev);
        struct mlx5e_rep_priv *rpriv = priv->ppriv;
        struct mlx5_eswitch_rep *rep = rpriv->rep;
        struct mlx5_core_dev *mdev = priv->mdev;
        struct mlx5e_params *params;

        params = &priv->channels.params;

        params->num_channels = MLX5E_REP_PARAMS_DEF_NUM_CHANNELS;
        params->hard_mtu    = MLX5E_ETH_HARD_MTU;
        params->sw_mtu      = netdev->mtu;

        /* SQ */
        if (rep->vport == MLX5_VPORT_UPLINK)
                params->log_sq_size = MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE;
        else
                params->log_sq_size = MLX5E_REP_PARAMS_DEF_LOG_SQ_SIZE;

        /* RQ */
        mlx5e_build_rq_params(mdev, params);
        if (!mlx5e_is_uplink_rep(priv) && mlx5_core_is_ecpf(mdev))
                params->log_rq_mtu_frames = MLX5E_REP_PARAMS_DEF_LOG_RQ_SIZE;

        /* If netdev is already registered (e.g. move from nic profile to uplink,
         * RTNL lock must be held before triggering netdev notifiers.
         */
        if (take_rtnl)
                rtnl_lock();
        /* update XDP supported features */
        mlx5e_set_xdp_feature(priv);
        if (take_rtnl)
                rtnl_unlock();

        /* CQ moderation params */
        params->rx_dim_enabled = MLX5_CAP_GEN(mdev, cq_moderation);
        params->rx_moder_use_cqe_mode = !!MLX5_CAP_GEN(mdev, cq_period_start_from_cqe);

        params->mqprio.num_tc       = 1;
        if (rep->vport != MLX5_VPORT_UPLINK)
                params->vlan_strip_disable = true;

        mlx5_query_min_inline(mdev, &params->tx_min_inline_mode);
}

static void mlx5e_build_rep_netdev(struct net_device *netdev,
                                   struct mlx5_core_dev *mdev)
{
        SET_NETDEV_DEV(netdev, mdev->device);
        netdev->netdev_ops = &mlx5e_netdev_ops_rep;
        netdev->request_ops_lock = true;
        netdev_lockdep_set_classes(netdev);
        eth_hw_addr_random(netdev);
        netdev->ethtool_ops = &mlx5e_rep_ethtool_ops;

        netdev->watchdog_timeo    = 15 * HZ;
        if (mlx5_core_is_ecpf(mdev))
                netdev->tx_queue_len = 1 << MLX5E_REP_PARAMS_DEF_LOG_SQ_SIZE;

#if IS_ENABLED(CONFIG_MLX5_CLS_ACT)
        netdev->hw_features    |= NETIF_F_HW_TC;
#endif
        netdev->hw_features    |= NETIF_F_SG;
        netdev->hw_features    |= NETIF_F_IP_CSUM;
        netdev->hw_features    |= NETIF_F_IPV6_CSUM;
        netdev->hw_features    |= NETIF_F_GRO;
        netdev->hw_features    |= NETIF_F_TSO;
        netdev->hw_features    |= NETIF_F_TSO6;
        netdev->hw_features    |= NETIF_F_RXCSUM;

        netdev->features |= netdev->hw_features;

        netdev->netns_immutable = true;
}

static int mlx5e_init_rep(struct mlx5_core_dev *mdev,
                          struct net_device *netdev)
{
        struct mlx5e_priv *priv = netdev_priv(netdev);

        priv->fs =
                mlx5e_fs_init(priv->profile, mdev,
                              !test_bit(MLX5E_STATE_DESTROYING, &priv->state),
                              priv->dfs_root);
        if (!priv->fs) {
                netdev_err(priv->netdev, "FS allocation failed\n");
                return -ENOMEM;
        }

        mlx5e_build_rep_params(netdev);
        mlx5e_timestamp_init(priv);

        return 0;
}

static int mlx5e_init_ul_rep(struct mlx5_core_dev *mdev,
                             struct net_device *netdev)
{
        struct mlx5e_priv *priv = netdev_priv(netdev);

        priv->dfs_root = debugfs_create_dir("nic",
                                            mlx5_debugfs_get_dev_root(mdev));

        priv->fs = mlx5e_fs_init(priv->profile, mdev,
                                 !test_bit(MLX5E_STATE_DESTROYING, &priv->state),
                                 priv->dfs_root);
        if (!priv->fs) {
                netdev_err(priv->netdev, "FS allocation failed\n");
                debugfs_remove_recursive(priv->dfs_root);
                return -ENOMEM;
        }

        mlx5e_vxlan_set_netdev_info(priv);
        mlx5e_build_rep_params(netdev);
        mlx5e_timestamp_init(priv);
        return 0;
}

static void mlx5e_cleanup_rep(struct mlx5e_priv *priv)
{
        mlx5e_fs_cleanup(priv->fs);
        debugfs_remove_recursive(priv->dfs_root);
        priv->fs = NULL;
}

static int mlx5e_create_rep_ttc_table(struct mlx5e_priv *priv)
{
        struct mlx5e_rep_priv *rpriv = priv->ppriv;
        struct mlx5_eswitch_rep *rep = rpriv->rep;
        struct ttc_params ttc_params = {};
        int err;

        mlx5e_fs_set_ns(priv->fs,
                        mlx5_get_flow_namespace(priv->mdev,
                                                MLX5_FLOW_NAMESPACE_KERNEL), false);

        /* The inner_ttc in the ttc params is intentionally not set */
        mlx5e_set_ttc_params(priv->fs, priv->rx_res, &ttc_params, false, false);

        if (rep->vport != MLX5_VPORT_UPLINK)
                /* To give uplik rep TTC a lower level for chaining from root ft */
                ttc_params.ft_attr.level = MLX5E_TTC_FT_LEVEL + 1;

        mlx5e_fs_set_ttc(priv->fs, mlx5_create_ttc_table(priv->mdev, &ttc_params), false);
        if (IS_ERR(mlx5e_fs_get_ttc(priv->fs, false))) {
                err = PTR_ERR(mlx5e_fs_get_ttc(priv->fs, false));
                netdev_err(priv->netdev, "Failed to create rep ttc table, err=%d\n",
                           err);
                return err;
        }
        return 0;
}

static int mlx5e_create_rep_root_ft(struct mlx5e_priv *priv)
{
        struct mlx5e_rep_priv *rpriv = priv->ppriv;
        struct mlx5_eswitch_rep *rep = rpriv->rep;
        struct mlx5_flow_table_attr ft_attr = {};
        struct mlx5_flow_namespace *ns;
        int err = 0;

        if (rep->vport != MLX5_VPORT_UPLINK) {
                /* non uplik reps will skip any bypass tables and go directly to
                 * their own ttc
                 */
                rpriv->root_ft = mlx5_get_ttc_flow_table(mlx5e_fs_get_ttc(priv->fs, false));
                return 0;
        }

        /* uplink root ft will be used to auto chain, to ethtool or ttc tables */
        ns = mlx5_get_flow_namespace(priv->mdev, MLX5_FLOW_NAMESPACE_OFFLOADS);
        if (!ns) {
                netdev_err(priv->netdev, "Failed to get reps offloads namespace\n");
                return -EOPNOTSUPP;
        }

        ft_attr.max_fte = 0; /* Empty table, miss rule will always point to next table */
        ft_attr.prio = 1;
        ft_attr.level = 1;

        rpriv->root_ft = mlx5_create_flow_table(ns, &ft_attr);
        if (IS_ERR(rpriv->root_ft)) {
                err = PTR_ERR(rpriv->root_ft);
                rpriv->root_ft = NULL;
        }

        return err;
}

static void mlx5e_destroy_rep_root_ft(struct mlx5e_priv *priv)
{
        struct mlx5e_rep_priv *rpriv = priv->ppriv;
        struct mlx5_eswitch_rep *rep = rpriv->rep;

        if (rep->vport != MLX5_VPORT_UPLINK)
                return;
        mlx5_destroy_flow_table(rpriv->root_ft);
}

static int mlx5e_create_rep_vport_rx_rule(struct mlx5e_priv *priv)
{
        struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
        struct mlx5e_rep_priv *rpriv = priv->ppriv;
        struct mlx5_eswitch_rep *rep = rpriv->rep;
        struct mlx5_flow_handle *flow_rule;
        struct mlx5_flow_destination dest;

        dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
        dest.ft = rpriv->root_ft;

        flow_rule = mlx5_eswitch_create_vport_rx_rule(esw, rep->vport, &dest);
        if (IS_ERR(flow_rule))
                return PTR_ERR(flow_rule);
        rpriv->vport_rx_rule = flow_rule;
        return 0;
}

static void rep_vport_rx_rule_destroy(struct mlx5e_priv *priv)
{
        struct mlx5e_rep_priv *rpriv = priv->ppriv;

        if (!rpriv->vport_rx_rule)
                return;

        mlx5_del_flow_rules(rpriv->vport_rx_rule);
        rpriv->vport_rx_rule = NULL;
}

int mlx5e_rep_bond_update(struct mlx5e_priv *priv, bool cleanup)
{
        rep_vport_rx_rule_destroy(priv);

        return cleanup ? 0 : mlx5e_create_rep_vport_rx_rule(priv);
}

static int mlx5e_init_rep_rx(struct mlx5e_priv *priv)
{
        struct mlx5_core_dev *mdev = priv->mdev;
        int err;

        mlx5e_fs_init_l2_addr(priv->fs, priv->netdev);

        err = mlx5e_open_drop_rq(priv, &priv->drop_rq);
        if (err) {
                mlx5_core_err(mdev, "open drop rq failed, %d\n", err);
                goto err_free_fs;
        }

        priv->rx_res = mlx5e_rx_res_create(priv->mdev, 0, priv->max_nch, priv->drop_rq.rqn,
                                           &priv->channels.params.packet_merge,
                                           priv->channels.params.num_channels);
        if (IS_ERR(priv->rx_res)) {
                err = PTR_ERR(priv->rx_res);
                mlx5_core_err(mdev, "Create rx resources failed, err=%d\n", err);
                goto err_close_drop_rq;
        }

        err = mlx5e_create_rep_ttc_table(priv);
        if (err)
                goto err_destroy_rx_res;

        err = mlx5e_create_rep_root_ft(priv);
        if (err)
                goto err_destroy_ttc_table;

        err = mlx5e_create_rep_vport_rx_rule(priv);
        if (err)
                goto err_destroy_root_ft;

        mlx5e_ethtool_init_steering(priv->fs);

        return 0;

err_destroy_root_ft:
        mlx5e_destroy_rep_root_ft(priv);
err_destroy_ttc_table:
        mlx5_destroy_ttc_table(mlx5e_fs_get_ttc(priv->fs, false));
err_destroy_rx_res:
        mlx5e_rx_res_destroy(priv->rx_res);
        priv->rx_res = ERR_PTR(-EINVAL);
err_close_drop_rq:
        mlx5e_close_drop_rq(&priv->drop_rq);
err_free_fs:
        mlx5e_fs_cleanup(priv->fs);
        priv->fs = NULL;
        return err;
}

static void mlx5e_cleanup_rep_rx(struct mlx5e_priv *priv)
{
        mlx5e_ethtool_cleanup_steering(priv->fs);
        rep_vport_rx_rule_destroy(priv);
        mlx5e_destroy_rep_root_ft(priv);
        mlx5_destroy_ttc_table(mlx5e_fs_get_ttc(priv->fs, false));
        mlx5e_rx_res_destroy(priv->rx_res);
        priv->rx_res = ERR_PTR(-EINVAL);
        mlx5e_close_drop_rq(&priv->drop_rq);
}

static void mlx5e_rep_mpesw_work(struct work_struct *work)
{
        struct mlx5_rep_uplink_priv *uplink_priv =
                container_of(work, struct mlx5_rep_uplink_priv,
                             mpesw_work);
        struct mlx5e_rep_priv *rpriv =
                container_of(uplink_priv, struct mlx5e_rep_priv,
                             uplink_priv);
        struct mlx5e_priv *priv = netdev_priv(rpriv->netdev);

        rep_vport_rx_rule_destroy(priv);
        mlx5e_create_rep_vport_rx_rule(priv);
}

static int mlx5e_init_ul_rep_rx(struct mlx5e_priv *priv)
{
        struct mlx5e_rep_priv *rpriv = priv->ppriv;
        int err;

        mlx5e_create_q_counters(priv);
        err = mlx5e_init_rep_rx(priv);
        if (err)
                goto out;

        mlx5e_tc_int_port_init_rep_rx(priv);

        INIT_WORK(&rpriv->uplink_priv.mpesw_work, mlx5e_rep_mpesw_work);

out:
        return err;
}

static void mlx5e_cleanup_ul_rep_rx(struct mlx5e_priv *priv)
{
        struct mlx5e_rep_priv *rpriv = priv->ppriv;

        cancel_work_sync(&rpriv->uplink_priv.mpesw_work);
        mlx5e_tc_int_port_cleanup_rep_rx(priv);
        mlx5e_cleanup_rep_rx(priv);
        mlx5e_destroy_q_counters(priv);
}

static int mlx5e_init_uplink_rep_tx(struct mlx5e_rep_priv *rpriv)
{
        struct mlx5_rep_uplink_priv *uplink_priv;
        struct net_device *netdev;
        struct mlx5e_priv *priv;
        int err;

        netdev = rpriv->netdev;
        priv = netdev_priv(netdev);
        uplink_priv = &rpriv->uplink_priv;

        err = mlx5e_rep_tc_init(rpriv);
        if (err)
                return err;

        mlx5_init_port_tun_entropy(&uplink_priv->tun_entropy, priv->mdev);

        mlx5e_rep_bond_init(rpriv);
        err = mlx5e_rep_tc_netdevice_event_register(rpriv);
        if (err) {
                mlx5_core_err(priv->mdev, "Failed to register netdev notifier, err: %d\n",
                              err);
                goto err_event_reg;
        }

        return 0;

err_event_reg:
        mlx5e_rep_bond_cleanup(rpriv);
        mlx5e_rep_tc_cleanup(rpriv);
        return err;
}

static void mlx5e_cleanup_uplink_rep_tx(struct mlx5e_rep_priv *rpriv)
{
        mlx5e_rep_tc_netdevice_event_unregister(rpriv);
        mlx5e_rep_bond_cleanup(rpriv);
        mlx5e_rep_tc_cleanup(rpriv);
}

static int mlx5e_init_rep_tx(struct mlx5e_priv *priv)
{
        struct mlx5e_rep_priv *rpriv = priv->ppriv;
        int err;

        err = mlx5e_rep_neigh_init(rpriv);
        if (err)
                goto err_neigh_init;

        if (rpriv->rep->vport == MLX5_VPORT_UPLINK) {
                err = mlx5e_init_uplink_rep_tx(rpriv);
                if (err)
                        goto err_init_tx;
        }

        err = mlx5e_tc_ht_init(&rpriv->tc_ht);
        if (err)
                goto err_ht_init;

        return 0;

err_ht_init:
        if (rpriv->rep->vport == MLX5_VPORT_UPLINK)
                mlx5e_cleanup_uplink_rep_tx(rpriv);
err_init_tx:
        mlx5e_rep_neigh_cleanup(rpriv);
err_neigh_init:
        return err;
}

static void mlx5e_cleanup_rep_tx(struct mlx5e_priv *priv)
{
        struct mlx5e_rep_priv *rpriv = priv->ppriv;

        mlx5e_tc_ht_cleanup(&rpriv->tc_ht);

        if (rpriv->rep->vport == MLX5_VPORT_UPLINK)
                mlx5e_cleanup_uplink_rep_tx(rpriv);

        mlx5e_rep_neigh_cleanup(rpriv);
}

static void mlx5e_rep_enable(struct mlx5e_priv *priv)
{
        mlx5e_set_netdev_mtu_boundaries(priv);
}

static void mlx5e_rep_disable(struct mlx5e_priv *priv)
{
}

static int mlx5e_update_rep_rx(struct mlx5e_priv *priv)
{
        return 0;
}

static void mlx5e_rep_stats_update_ndo_stats(struct mlx5e_priv *priv)
{
        mlx5e_stats_update_ndo_stats(priv);
        mlx5e_rep_update_vport_q_counter(priv);
}

static int mlx5e_rep_event_mpesw(struct mlx5e_priv *priv)
{
        struct mlx5e_rep_priv *rpriv = priv->ppriv;
        struct mlx5_eswitch_rep *rep = rpriv->rep;

        if (rep->vport != MLX5_VPORT_UPLINK)
                return NOTIFY_DONE;

        queue_work(priv->wq, &rpriv->uplink_priv.mpesw_work);

        return NOTIFY_OK;
}

static int uplink_rep_async_event(struct notifier_block *nb, unsigned long event, void *data)
{
        struct mlx5e_priv *priv = container_of(nb, struct mlx5e_priv, events_nb);

        if (event == MLX5_EVENT_TYPE_PORT_CHANGE) {
                struct mlx5_eqe *eqe = data;

                switch (eqe->sub_type) {
                case MLX5_PORT_CHANGE_SUBTYPE_DOWN:
                case MLX5_PORT_CHANGE_SUBTYPE_ACTIVE:
                        queue_work(priv->wq, &priv->update_carrier_work);
                        break;
                default:
                        return NOTIFY_DONE;
                }

                return NOTIFY_OK;
        }

        if (event == MLX5_DEV_EVENT_PORT_AFFINITY)
                return mlx5e_rep_tc_event_port_affinity(priv);
        else if (event == MLX5_DEV_EVENT_MULTIPORT_ESW)
                return mlx5e_rep_event_mpesw(priv);

        return NOTIFY_DONE;
}

static void mlx5e_uplink_rep_enable(struct mlx5e_priv *priv)
{
        struct net_device *netdev = priv->netdev;
        struct mlx5_core_dev *mdev = priv->mdev;
        u16 max_mtu;

        mlx5e_ipsec_init(priv);

        netdev->min_mtu = ETH_MIN_MTU;
        mlx5_query_port_max_mtu(priv->mdev, &max_mtu, 1);
        netdev->max_mtu = MLX5E_HW2SW_MTU(&priv->channels.params, max_mtu);
        mlx5e_set_dev_port_mtu(priv);

        mlx5e_rep_tc_enable(priv);

        if (MLX5_CAP_GEN(mdev, uplink_follow))
                mlx5_modify_vport_admin_state(mdev, MLX5_VPORT_STATE_OP_MOD_UPLINK,
                                              0, 0, MLX5_VPORT_ADMIN_STATE_AUTO);
        mlx5_lag_add_netdev(mdev, netdev);
        priv->events_nb.notifier_call = uplink_rep_async_event;
        mlx5_notifier_register(mdev, &priv->events_nb);
        mlx5e_dcbnl_initialize(priv);
        mlx5e_dcbnl_init_app(priv);
        mlx5e_rep_bridge_init(priv);

        netdev->wanted_features |= NETIF_F_HW_TC;

        rtnl_lock();
        netdev_lock(netdev);
        if (netif_running(netdev))
                mlx5e_open(netdev);
        udp_tunnel_nic_reset_ntf(priv->netdev);
        netdev_unlock(netdev);
        netif_device_attach(netdev);
        rtnl_unlock();
}

static void mlx5e_uplink_rep_disable(struct mlx5e_priv *priv)
{
        struct mlx5_core_dev *mdev = priv->mdev;

        rtnl_lock();
        netdev_lock(priv->netdev);
        if (netif_running(priv->netdev))
                mlx5e_close(priv->netdev);
        netif_device_detach(priv->netdev);
        netdev_unlock(priv->netdev);
        rtnl_unlock();

        /* clean-up uplink's mpfs mac table */
        queue_work(priv->wq, &priv->set_rx_mode_work);
        mlx5e_rep_bridge_cleanup(priv);
        mlx5e_dcbnl_delete_app(priv);
        mlx5_notifier_unregister(mdev, &priv->events_nb);
        mlx5e_rep_tc_disable(priv);
        mlx5_lag_remove_netdev(mdev, priv->netdev);
        mlx5_vxlan_reset_to_default(mdev->vxlan);

        mlx5e_ipsec_cleanup(priv);
}

static MLX5E_DEFINE_STATS_GRP(sw_rep, 0);
static MLX5E_DEFINE_STATS_GRP(vport_rep, MLX5E_NDO_UPDATE_STATS);

/* The stats groups order is opposite to the update_stats() order calls */
static mlx5e_stats_grp_t mlx5e_rep_stats_grps[] = {
        &MLX5E_STATS_GRP(sw_rep),
        &MLX5E_STATS_GRP(vport_rep),
};

static unsigned int mlx5e_rep_stats_grps_num(struct mlx5e_priv *priv)
{
        return ARRAY_SIZE(mlx5e_rep_stats_grps);
}

/* The stats groups order is opposite to the update_stats() order calls */
static mlx5e_stats_grp_t mlx5e_ul_rep_stats_grps[] = {
        &MLX5E_STATS_GRP(sw),
        &MLX5E_STATS_GRP(qcnt),
        &MLX5E_STATS_GRP(vnic_env),
        &MLX5E_STATS_GRP(vport),
        &MLX5E_STATS_GRP(802_3),
        &MLX5E_STATS_GRP(2863),
        &MLX5E_STATS_GRP(2819),
        &MLX5E_STATS_GRP(phy),
        &MLX5E_STATS_GRP(eth_ext),
        &MLX5E_STATS_GRP(pcie),
        &MLX5E_STATS_GRP(per_prio),
        &MLX5E_STATS_GRP(pme),
        &MLX5E_STATS_GRP(channels),
        &MLX5E_STATS_GRP(per_port_buff_congest),
#ifdef CONFIG_MLX5_EN_IPSEC
        &MLX5E_STATS_GRP(ipsec_hw),
        &MLX5E_STATS_GRP(ipsec_sw),
#endif
        &MLX5E_STATS_GRP(ptp),
};

static unsigned int mlx5e_ul_rep_stats_grps_num(struct mlx5e_priv *priv)
{
        return ARRAY_SIZE(mlx5e_ul_rep_stats_grps);
}

static int
mlx5e_rep_vnic_reporter_diagnose(struct devlink_health_reporter *reporter,
                                 struct devlink_fmsg *fmsg,
                                 struct netlink_ext_ack *extack)
{
        struct mlx5e_rep_priv *rpriv = devlink_health_reporter_priv(reporter);
        struct mlx5_eswitch_rep *rep = rpriv->rep;

        mlx5_reporter_vnic_diagnose_counters(rep->esw->dev, fmsg, rep->vport,
                                             true);
        return 0;
}

static const struct devlink_health_reporter_ops mlx5_rep_vnic_reporter_ops = {
        .name = "vnic",
        .diagnose = mlx5e_rep_vnic_reporter_diagnose,
};

static void mlx5e_rep_vnic_reporter_create(struct mlx5e_priv *priv,
                                           struct devlink_port *dl_port)
{
        struct mlx5e_rep_priv *rpriv = priv->ppriv;
        struct devlink_health_reporter *reporter;

        reporter = devl_port_health_reporter_create(dl_port,
                                                    &mlx5_rep_vnic_reporter_ops,
                                                    rpriv);
        if (IS_ERR(reporter)) {
                mlx5_core_err(priv->mdev,
                              "Failed to create representor vnic reporter, err = %pe\n",
                              reporter);
                return;
        }

        rpriv->rep_vnic_reporter = reporter;
}

static void mlx5e_rep_vnic_reporter_destroy(struct mlx5e_priv *priv)
{
        struct mlx5e_rep_priv *rpriv = priv->ppriv;

        if (!IS_ERR_OR_NULL(rpriv->rep_vnic_reporter))
                devl_health_reporter_destroy(rpriv->rep_vnic_reporter);
}

static const struct mlx5e_profile mlx5e_rep_profile = {
        .init                   = mlx5e_init_rep,
        .cleanup                = mlx5e_cleanup_rep,
        .init_rx                = mlx5e_init_rep_rx,
        .cleanup_rx             = mlx5e_cleanup_rep_rx,
        .init_tx                = mlx5e_init_rep_tx,
        .cleanup_tx             = mlx5e_cleanup_rep_tx,
        .enable                 = mlx5e_rep_enable,
        .disable                = mlx5e_rep_disable,
        .update_rx              = mlx5e_update_rep_rx,
        .update_stats           = mlx5e_rep_stats_update_ndo_stats,
        .rx_handlers            = &mlx5e_rx_handlers_rep,
        .max_tc                 = 1,
        .stats_grps             = mlx5e_rep_stats_grps,
        .stats_grps_num         = mlx5e_rep_stats_grps_num,
        .max_nch_limit          = mlx5e_rep_max_nch_limit,
};

static const struct mlx5e_profile mlx5e_uplink_rep_profile = {
        .init                   = mlx5e_init_ul_rep,
        .cleanup                = mlx5e_cleanup_rep,
        .init_rx                = mlx5e_init_ul_rep_rx,
        .cleanup_rx             = mlx5e_cleanup_ul_rep_rx,
        .init_tx                = mlx5e_init_rep_tx,
        .cleanup_tx             = mlx5e_cleanup_rep_tx,
        .enable                 = mlx5e_uplink_rep_enable,
        .disable                = mlx5e_uplink_rep_disable,
        .update_rx              = mlx5e_update_rep_rx,
        .update_stats           = mlx5e_stats_update_ndo_stats,
        .update_carrier         = mlx5e_update_carrier,
        .rx_handlers            = &mlx5e_rx_handlers_rep,
        .max_tc                 = MLX5_MAX_NUM_TC,
        .stats_grps             = mlx5e_ul_rep_stats_grps,
        .stats_grps_num         = mlx5e_ul_rep_stats_grps_num,
};

/* e-Switch vport representors */
static int
mlx5e_vport_uplink_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)
{
        struct mlx5e_rep_priv *rpriv = mlx5e_rep_to_rep_priv(rep);
        struct net_device *netdev;
        int err;

        netdev = mlx5_uplink_netdev_get(dev);
        if (!netdev)
                return 0;

        /* must not use netdev_priv(netdev), it might not be initialized yet */
        rpriv->netdev = netdev;
        err = mlx5e_netdev_change_profile(netdev, dev,
                                          &mlx5e_uplink_rep_profile, rpriv);
        mlx5_uplink_netdev_put(dev, netdev);
        return err;
}

static void
mlx5e_vport_uplink_rep_unload(struct mlx5e_rep_priv *rpriv)
{
        struct net_device *netdev = rpriv->netdev;
        struct mlx5e_priv *priv;

        priv = netdev_priv(netdev);

        /* This bit is set when using devlink to change eswitch mode from
         * switchdev to legacy. As need to keep uplink netdev ifindex, we
         * detach uplink representor profile and attach NIC profile only.
         * The netdev will be unregistered later when unload NIC auxiliary
         * driver for this case.
         * We explicitly block devlink eswitch mode change if any IPSec rules
         * offloaded, but can't block other cases, such as driver unload
         * and devlink reload. We have to unregister netdev before profile
         * change for those cases. This is to avoid resource leak because
         * the offloaded rules don't have the chance to be unoffloaded before
         * cleanup which is triggered by detach uplink representor profile.
         */
        if (!(priv->mdev->priv.flags & MLX5_PRIV_FLAGS_SWITCH_LEGACY))
                unregister_netdev(netdev);

        mlx5e_netdev_attach_nic_profile(netdev, priv->mdev);
}

static int
mlx5e_vport_vf_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)
{
        struct mlx5e_rep_priv *rpriv = mlx5e_rep_to_rep_priv(rep);
        const struct mlx5e_profile *profile;
        struct devlink_port *dl_port;
        struct net_device *netdev;
        struct mlx5e_priv *priv;
        int err;

        profile = &mlx5e_rep_profile;
        netdev = mlx5e_create_netdev(dev, profile);
        if (!netdev) {
                mlx5_core_warn(dev,
                               "Failed to create representor netdev for vport %d\n",
                               rep->vport);
                return -EINVAL;
        }

        mlx5e_build_rep_netdev(netdev, dev);
        rpriv->netdev = netdev;

        priv = netdev_priv(netdev);
        priv->profile = profile;
        priv->ppriv = rpriv;
        err = profile->init(dev, netdev);
        if (err) {
                netdev_warn(netdev, "rep profile init failed, %d\n", err);
                goto err_destroy_netdev;
        }

        err = mlx5e_attach_netdev(netdev_priv(netdev));
        if (err) {
                netdev_warn(netdev,
                            "Failed to attach representor netdev for vport %d\n",
                            rep->vport);
                goto err_cleanup_profile;
        }

        dl_port = mlx5_esw_offloads_devlink_port(dev->priv.eswitch,
                                                 rpriv->rep->vport);
        if (!IS_ERR(dl_port)) {
                SET_NETDEV_DEVLINK_PORT(netdev, dl_port);
                mlx5e_rep_vnic_reporter_create(priv, dl_port);
        }

        err = register_netdev(netdev);
        if (err) {
                netdev_warn(netdev,
                            "Failed to register representor netdev for vport %d\n",
                            rep->vport);
                goto err_detach_netdev;
        }

        return 0;

err_detach_netdev:
        mlx5e_rep_vnic_reporter_destroy(priv);
        mlx5e_detach_netdev(netdev_priv(netdev));
err_cleanup_profile:
        priv->profile->cleanup(priv);

err_destroy_netdev:
        mlx5e_destroy_netdev(netdev);
        return err;
}

static int
mlx5e_vport_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)
{
        struct mlx5e_rep_priv *rpriv;
        int err;

        rpriv = kvzalloc_obj(*rpriv);
        if (!rpriv)
                return -ENOMEM;

        /* rpriv->rep to be looked up when profile->init() is called */
        rpriv->rep = rep;
        rep->rep_data[REP_ETH].priv = rpriv;
        INIT_LIST_HEAD(&rpriv->vport_sqs_list);

        if (rep->vport == MLX5_VPORT_UPLINK)
                err = mlx5e_vport_uplink_rep_load(dev, rep);
        else
                err = mlx5e_vport_vf_rep_load(dev, rep);

        if (err)
                kvfree(rpriv);

        return err;
}

static void
mlx5e_vport_rep_unload(struct mlx5_eswitch_rep *rep)
{
        struct mlx5e_rep_priv *rpriv = mlx5e_rep_to_rep_priv(rep);
        struct net_device *netdev = rpriv->netdev;
        struct mlx5e_priv *priv;
        void *ppriv;

        if (!netdev) {
                ppriv = rpriv;
                goto free_ppriv;
        }

        priv = netdev_priv(netdev);
        ppriv = priv->ppriv;

        if (rep->vport == MLX5_VPORT_UPLINK) {
                mlx5e_vport_uplink_rep_unload(rpriv);
                goto free_ppriv;
        }

        unregister_netdev(netdev);
        mlx5e_rep_vnic_reporter_destroy(priv);
        mlx5e_detach_netdev(priv);
        priv->profile->cleanup(priv);
        mlx5e_destroy_netdev(netdev);
free_ppriv:
        kvfree(ppriv); /* mlx5e_rep_priv */
}

static void *mlx5e_vport_rep_get_proto_dev(struct mlx5_eswitch_rep *rep)
{
        struct mlx5e_rep_priv *rpriv;

        rpriv = mlx5e_rep_to_rep_priv(rep);

        return rpriv->netdev;
}

static void mlx5e_vport_rep_event_unpair(struct mlx5_eswitch_rep *rep,
                                         struct mlx5_eswitch *peer_esw)
{
        u16 i = MLX5_CAP_GEN(peer_esw->dev, vhca_id);
        struct mlx5e_rep_priv *rpriv;
        struct mlx5e_rep_sq *rep_sq;

        WARN_ON_ONCE(!peer_esw);
        rpriv = mlx5e_rep_to_rep_priv(rep);
        list_for_each_entry(rep_sq, &rpriv->vport_sqs_list, list) {
                struct mlx5e_rep_sq_peer *sq_peer = xa_load(&rep_sq->sq_peer, i);

                if (!sq_peer || sq_peer->peer != peer_esw)
                        continue;

                mlx5_eswitch_del_send_to_vport_rule(sq_peer->rule);
                xa_erase(&rep_sq->sq_peer, i);
                kfree(sq_peer);
        }
}

static int mlx5e_vport_rep_event_pair(struct mlx5_eswitch *esw,
                                      struct mlx5_eswitch_rep *rep,
                                      struct mlx5_eswitch *peer_esw)
{
        u16 i = MLX5_CAP_GEN(peer_esw->dev, vhca_id);
        struct mlx5_flow_handle *flow_rule;
        struct mlx5e_rep_sq_peer *sq_peer;
        struct mlx5e_rep_priv *rpriv;
        struct mlx5e_rep_sq *rep_sq;
        int err;

        rpriv = mlx5e_rep_to_rep_priv(rep);
        list_for_each_entry(rep_sq, &rpriv->vport_sqs_list, list) {
                sq_peer = xa_load(&rep_sq->sq_peer, i);

                if (sq_peer && sq_peer->peer)
                        continue;

                flow_rule = mlx5_eswitch_add_send_to_vport_rule(peer_esw, esw, rep,
                                                                rep_sq->sqn);
                if (IS_ERR(flow_rule)) {
                        err = PTR_ERR(flow_rule);
                        goto err_out;
                }

                if (sq_peer) {
                        sq_peer->rule = flow_rule;
                        sq_peer->peer = peer_esw;
                        continue;
                }
                sq_peer = kzalloc_obj(*sq_peer);
                if (!sq_peer) {
                        err = -ENOMEM;
                        goto err_sq_alloc;
                }
                err = xa_insert(&rep_sq->sq_peer, i, sq_peer, GFP_KERNEL);
                if (err)
                        goto err_xa;
                sq_peer->rule = flow_rule;
                sq_peer->peer = peer_esw;
        }

        return 0;
err_xa:
        kfree(sq_peer);
err_sq_alloc:
        mlx5_eswitch_del_send_to_vport_rule(flow_rule);
err_out:
        mlx5e_vport_rep_event_unpair(rep, peer_esw);
        return err;
}

static int mlx5e_vport_rep_event(struct mlx5_eswitch *esw,
                                 struct mlx5_eswitch_rep *rep,
                                 enum mlx5_switchdev_event event,
                                 void *data)
{
        int err = 0;

        if (event == MLX5_SWITCHDEV_EVENT_PAIR)
                err = mlx5e_vport_rep_event_pair(esw, rep, data);
        else if (event == MLX5_SWITCHDEV_EVENT_UNPAIR)
                mlx5e_vport_rep_event_unpair(rep, data);

        return err;
}

static const struct mlx5_eswitch_rep_ops rep_ops = {
        .load = mlx5e_vport_rep_load,
        .unload = mlx5e_vport_rep_unload,
        .get_proto_dev = mlx5e_vport_rep_get_proto_dev,
        .event = mlx5e_vport_rep_event,
};

static int mlx5e_rep_probe(struct auxiliary_device *adev,
                           const struct auxiliary_device_id *id)
{
        struct mlx5_adev *edev = container_of(adev, struct mlx5_adev, adev);
        struct mlx5_core_dev *mdev = edev->mdev;
        struct mlx5_eswitch *esw;

        esw = mdev->priv.eswitch;
        mlx5_eswitch_register_vport_reps(esw, &rep_ops, REP_ETH);
        return 0;
}

static void mlx5e_rep_remove(struct auxiliary_device *adev)
{
        struct mlx5_adev *vdev = container_of(adev, struct mlx5_adev, adev);
        struct mlx5_core_dev *mdev = vdev->mdev;
        struct mlx5_eswitch *esw;

        esw = mdev->priv.eswitch;
        mlx5_eswitch_unregister_vport_reps(esw, REP_ETH);
}

static const struct auxiliary_device_id mlx5e_rep_id_table[] = {
        { .name = MLX5_ADEV_NAME ".eth-rep", },
        {},
};

MODULE_DEVICE_TABLE(auxiliary, mlx5e_rep_id_table);

static struct auxiliary_driver mlx5e_rep_driver = {
        .name = "eth-rep",
        .probe = mlx5e_rep_probe,
        .remove = mlx5e_rep_remove,
        .id_table = mlx5e_rep_id_table,
};

int mlx5e_rep_init(void)
{
        return auxiliary_driver_register(&mlx5e_rep_driver);
}

void mlx5e_rep_cleanup(void)
{
        auxiliary_driver_unregister(&mlx5e_rep_driver);
}