text: /*
   * 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 <generated/utsrelease.h>
  #include <linux/mlx5/fs.h>
  #include <net/switchdev.h>
  #include <net/pkt_cls.h>
  #include <net/act_api.h>
  #include <net/netevent.h>
  #include <net/arp.h>
  #include <net/devlink.h>
  #include <net/ipv6_stubs.h>
  
  #include "eswitch.h"
  #include "en.h"
  #include "en_rep.h"
  #include "en_tc.h"
  #include "en/tc_tun.h"
  #include "fs_core.h"
  #include "lib/port_tun.h"
  #define CREATE_TRACE_POINTS
  #include "diag/en_rep_tracepoint.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
  
  static const char mlx5e_rep_driver_name[] = "mlx5e_rep";
  
  struct mlx5e_rep_indr_block_priv {
  	struct net_device *netdev;
  	struct mlx5e_rep_priv *rpriv;
  
  	struct list_head list;
  };
  
  static void mlx5e_rep_indr_unregister_block(struct mlx5e_rep_priv *rpriv,
  					    struct net_device *netdev);
  
  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;
  
  	strlcpy(drvinfo->driver, mlx5e_rep_driver_name,
  		sizeof(drvinfo->driver));
  	strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version));
  	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);
  }
  
  static void mlx5e_uplink_rep_get_drvinfo(struct net_device *dev,
  					 struct ethtool_drvinfo *drvinfo)
  {
  	struct mlx5e_priv *priv = netdev_priv(dev);
  
  	mlx5e_rep_get_drvinfo(dev, drvinfo);
  	strlcpy(drvinfo->bus_info, pci_name(priv->mdev->pdev),
  		sizeof(drvinfo->bus_info));
  }
  
  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) },
  };
  
  struct vport_stats {
  	u64 vport_rx_packets;
  	u64 vport_tx_packets;
  	u64 vport_rx_bytes;
  	u64 vport_tx_bytes;
  };
  
  static const struct counter_desc vport_rep_stats_desc[] = {
  	{ MLX5E_DECLARE_STAT(struct vport_stats, vport_rx_packets) },
  	{ MLX5E_DECLARE_STAT(struct vport_stats, vport_rx_bytes) },
  	{ MLX5E_DECLARE_STAT(struct vport_stats, vport_tx_packets) },
  	{ MLX5E_DECLARE_STAT(struct vport_stats, vport_tx_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)
  
  static void mlx5e_rep_get_strings(struct net_device *dev,
  				  u32 stringset, uint8_t *data)
  {
  	int i, j;
  
  	switch (stringset) {
  	case ETH_SS_STATS:
  		for (i = 0; i < NUM_VPORT_REP_SW_COUNTERS; i++)
  			strcpy(data + (i * ETH_GSTRING_LEN),
  			       sw_rep_stats_desc[i].format);
  		for (j = 0; j < NUM_VPORT_REP_HW_COUNTERS; j++, i++)
  			strcpy(data + (i * ETH_GSTRING_LEN),
  			       vport_rep_stats_desc[j].format);
  		break;
  	}
  }
  
  static void mlx5e_rep_update_hw_counters(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 rtnl_link_stats64 *vport_stats;
  	struct ifla_vf_stats vf_stats;
  	int err;
  
  	err = mlx5_eswitch_get_vport_stats(esw, rep->vport, &vf_stats);
  	if (err) {
  		pr_warn("vport %d error %d reading stats\n", rep->vport, err);
  		return;
  	}
  
  	vport_stats = &priv->stats.vf_vport;
  	/* flip tx/rx as we are reporting the counters for the switch vport */
  	vport_stats->rx_packets = vf_stats.tx_packets;
  	vport_stats->rx_bytes   = vf_stats.tx_bytes;
  	vport_stats->tx_packets = vf_stats.rx_packets;
  	vport_stats->tx_bytes   = vf_stats.rx_bytes;
  }
  
  static void mlx5e_uplink_rep_update_hw_counters(struct mlx5e_priv *priv)
  {
  	struct mlx5e_pport_stats *pstats = &priv->stats.pport;
  	struct rtnl_link_stats64 *vport_stats;
  
  	mlx5e_grp_802_3_update_stats(priv);
  
  	vport_stats = &priv->stats.vf_vport;
  
  	vport_stats->rx_packets = PPORT_802_3_GET(pstats, a_frames_received_ok);
  	vport_stats->rx_bytes   = PPORT_802_3_GET(pstats, a_octets_received_ok);
  	vport_stats->tx_packets = PPORT_802_3_GET(pstats, a_frames_transmitted_ok);
  	vport_stats->tx_bytes   = PPORT_802_3_GET(pstats, a_octets_transmitted_ok);
  }
  
  static void mlx5e_rep_update_sw_counters(struct mlx5e_priv *priv)
  {
  	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 void mlx5e_rep_get_ethtool_stats(struct net_device *dev,
  					struct ethtool_stats *stats, u64 *data)
  {
  	struct mlx5e_priv *priv = netdev_priv(dev);
  	int i, j;
  
  	if (!data)
  		return;
  
  	mutex_lock(&priv->state_lock);
  	mlx5e_rep_update_sw_counters(priv);
  	priv->profile->update_stats(priv);
  	mutex_unlock(&priv->state_lock);
  
  	for (i = 0; i < NUM_VPORT_REP_SW_COUNTERS; i++)
  		data[i] = MLX5E_READ_CTR64_CPU(&priv->stats.sw,
  					       sw_rep_stats_desc, i);
  
  	for (j = 0; j < NUM_VPORT_REP_HW_COUNTERS; j++, i++)
  		data[i] = MLX5E_READ_CTR64_CPU(&priv->stats.vf_vport,
  					       vport_rep_stats_desc, j);
  }
  
  static int mlx5e_rep_get_sset_count(struct net_device *dev, int sset)
  {
  	switch (sset) {
  	case ETH_SS_STATS:
  		return NUM_VPORT_REP_SW_COUNTERS + NUM_VPORT_REP_HW_COUNTERS;
  	default:
  		return -EOPNOTSUPP;
  	}
  }
  
  static void mlx5e_rep_get_ringparam(struct net_device *dev,
  				struct ethtool_ringparam *param)
  {
  	struct mlx5e_priv *priv = netdev_priv(dev);
  
  	mlx5e_ethtool_get_ringparam(priv, param);
  }
  
  static int mlx5e_rep_set_ringparam(struct net_device *dev,
  			       struct ethtool_ringparam *param)
  {
  	struct mlx5e_priv *priv = netdev_priv(dev);
  
  	return mlx5e_ethtool_set_ringparam(priv, param);
  }
  
  static int mlx5e_replace_rep_vport_rx_rule(struct mlx5e_priv *priv,
  					   struct mlx5_flow_destination *dest)
  {
  	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;
  
  	flow_rule = mlx5_eswitch_create_vport_rx_rule(esw,
  						      rep->vport,
  						      dest);
  	if (IS_ERR(flow_rule))
  		return PTR_ERR(flow_rule);
  
  	mlx5_del_flow_rules(rpriv->vport_rx_rule);
  	rpriv->vport_rx_rule = flow_rule;
  	return 0;
  }
  
  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);
  	u16 curr_channels_amount = priv->channels.params.num_channels;
  	u32 new_channels_amount = ch->combined_count;
  	struct mlx5_flow_destination new_dest;
  	int err = 0;
  
  	err = mlx5e_ethtool_set_channels(priv, ch);
  	if (err)
  		return err;
  
  	if (curr_channels_amount == 1 && new_channels_amount > 1) {
  		new_dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
  		new_dest.ft = priv->fs.ttc.ft.t;
  	} else if (new_channels_amount == 1 && curr_channels_amount > 1) {
  		new_dest.type = MLX5_FLOW_DESTINATION_TYPE_TIR;
  		new_dest.tir_num = priv->direct_tir[0].tirn;
  	} else {
  		return 0;
  	}
  
  	err = mlx5e_replace_rep_vport_rx_rule(priv, &new_dest);
  	if (err) {
  		netdev_warn(priv->netdev, "Failed to update vport rx rule, when going from (%d) channels to (%d) channels\n",
  			    curr_channels_amount, new_channels_amount);
  		return err;
  	}
  
  	return 0;
  }
  
  static int mlx5e_rep_get_coalesce(struct net_device *netdev,
  				  struct ethtool_coalesce *coal)
  {
  	struct mlx5e_priv *priv = netdev_priv(netdev);
  
  	return mlx5e_ethtool_get_coalesce(priv, coal);
  }
  
  static int mlx5e_rep_set_coalesce(struct net_device *netdev,
  				  struct ethtool_coalesce *coal)
  {
  	struct mlx5e_priv *priv = netdev_priv(netdev);
  
  	return mlx5e_ethtool_set_coalesce(priv, coal);
  }
  
  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 void mlx5e_uplink_rep_get_pauseparam(struct net_device *netdev,
  					    struct ethtool_pauseparam *pauseparam)
  {
  	struct mlx5e_priv *priv = netdev_priv(netdev);
  
  	mlx5e_ethtool_get_pauseparam(priv, pauseparam);
  }
  
  static int mlx5e_uplink_rep_set_pauseparam(struct net_device *netdev,
  					   struct ethtool_pauseparam *pauseparam)
  {
  	struct mlx5e_priv *priv = netdev_priv(netdev);
  
  	return mlx5e_ethtool_set_pauseparam(priv, pauseparam);
  }
  
  static int mlx5e_uplink_rep_get_link_ksettings(struct net_device *netdev,
  					       struct ethtool_link_ksettings *link_ksettings)
  {
  	struct mlx5e_priv *priv = netdev_priv(netdev);
  
  	return mlx5e_ethtool_get_link_ksettings(priv, link_ksettings);
  }
  
  static int mlx5e_uplink_rep_set_link_ksettings(struct net_device *netdev,
  					       const struct ethtool_link_ksettings *link_ksettings)
  {
  	struct mlx5e_priv *priv = netdev_priv(netdev);
  
  	return mlx5e_ethtool_set_link_ksettings(priv, link_ksettings);
  }
  
  static const struct ethtool_ops mlx5e_rep_ethtool_ops = {
  	.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_rxfh_key_size   = mlx5e_rep_get_rxfh_key_size,
  	.get_rxfh_indir_size = mlx5e_rep_get_rxfh_indir_size,
  };
  
  static const struct ethtool_ops mlx5e_uplink_rep_ethtool_ops = {
  	.get_drvinfo	   = mlx5e_uplink_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_link_ksettings = mlx5e_uplink_rep_get_link_ksettings,
  	.set_link_ksettings = mlx5e_uplink_rep_set_link_ksettings,
  	.get_rxfh_key_size   = mlx5e_rep_get_rxfh_key_size,
  	.get_rxfh_indir_size = mlx5e_rep_get_rxfh_indir_size,
  	.get_pauseparam    = mlx5e_uplink_rep_get_pauseparam,
  	.set_pauseparam    = mlx5e_uplink_rep_set_pauseparam,
  };
  
  static void mlx5e_rep_get_port_parent_id(struct net_device *dev,
  					 struct netdev_phys_item_id *ppid)
  {
  	struct mlx5e_priv *priv;
  	u64 parent_id;
  
  	priv = netdev_priv(dev);
  
  	parent_id = mlx5_query_nic_system_image_guid(priv->mdev);
  	ppid->id_len = sizeof(parent_id);
  	memcpy(ppid->id, &parent_id, sizeof(parent_id));
  }
  
  static void mlx5e_sqs2vport_stop(struct mlx5_eswitch *esw,
  				 struct mlx5_eswitch_rep *rep)
  {
  	struct mlx5e_rep_sq *rep_sq, *tmp;
  	struct mlx5e_rep_priv *rpriv;
  
  	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);
  		list_del(&rep_sq->list);
  		kfree(rep_sq);
  	}
  }
  
  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;
  	int err;
  	int i;
  
  	if (esw->mode != MLX5_ESWITCH_OFFLOADS)
  		return 0;
  
  	rpriv = mlx5e_rep_to_rep_priv(rep);
  	for (i = 0; i < sqns_num; i++) {
  		rep_sq = kzalloc(sizeof(*rep_sq), GFP_KERNEL);
  		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,
  								rep->vport,
  								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;
  		list_add(&rep_sq->list, &rpriv->vport_sqs_list);
  	}
  	return 0;
  
  out_err:
  	mlx5e_sqs2vport_stop(esw, rep);
  	return err;
  }
  
  int mlx5e_add_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;
  	struct mlx5e_channel *c;
  	int n, tc, num_sqs = 0;
  	int err = -ENOMEM;
  	u32 *sqs;
  
  	sqs = kcalloc(priv->channels.num * priv->channels.params.num_tc, 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;
  	}
  
  	err = mlx5e_sqs2vport_start(esw, rep, sqs, num_sqs);
  	kfree(sqs);
  
  out:
  	if (err)
  		netdev_warn(priv->netdev, "Failed to add SQs FWD rules %d\n", err);
  	return err;
  }
  
  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 unsigned long mlx5e_rep_ipv6_interval(void)
  {
  	if (IS_ENABLED(CONFIG_IPV6) && ipv6_stub->nd_tbl)
  		return NEIGH_VAR(&ipv6_stub->nd_tbl->parms, DELAY_PROBE_TIME);
  
  	return ~0UL;
  }
  
  static void mlx5e_rep_neigh_update_init_interval(struct mlx5e_rep_priv *rpriv)
  {
  	unsigned long ipv4_interval = NEIGH_VAR(&arp_tbl.parms, DELAY_PROBE_TIME);
  	unsigned long ipv6_interval = mlx5e_rep_ipv6_interval();
  	struct net_device *netdev = rpriv->netdev;
  	struct mlx5e_priv *priv = netdev_priv(netdev);
  
  	rpriv->neigh_update.min_interval = min_t(unsigned long, ipv6_interval, ipv4_interval);
  	mlx5_fc_update_sampling_interval(priv->mdev, rpriv->neigh_update.min_interval);
  }
  
  void mlx5e_rep_queue_neigh_stats_work(struct mlx5e_priv *priv)
  {
  	struct mlx5e_rep_priv *rpriv = priv->ppriv;
  	struct mlx5e_neigh_update_table *neigh_update = &rpriv->neigh_update;
  
  	mlx5_fc_queue_stats_work(priv->mdev,
  				 &neigh_update->neigh_stats_work,
  				 neigh_update->min_interval);
  }
  
  static bool mlx5e_rep_neigh_entry_hold(struct mlx5e_neigh_hash_entry *nhe)
  {
  	return refcount_inc_not_zero(&nhe->refcnt);
  }
  
  static void mlx5e_rep_neigh_entry_remove(struct mlx5e_neigh_hash_entry *nhe);
  
  static void mlx5e_rep_neigh_entry_release(struct mlx5e_neigh_hash_entry *nhe)
  {
  	if (refcount_dec_and_test(&nhe->refcnt)) {
  		mlx5e_rep_neigh_entry_remove(nhe);
  		kfree_rcu(nhe, rcu);
  	}
  }
  
  static struct mlx5e_neigh_hash_entry *
  mlx5e_get_next_nhe(struct mlx5e_rep_priv *rpriv,
  		   struct mlx5e_neigh_hash_entry *nhe)
  {
  	struct mlx5e_neigh_hash_entry *next = NULL;
  
  	rcu_read_lock();
  
  	for (next = nhe ?
  		     list_next_or_null_rcu(&rpriv->neigh_update.neigh_list,
  					   &nhe->neigh_list,
  					   struct mlx5e_neigh_hash_entry,
  					   neigh_list) :
  		     list_first_or_null_rcu(&rpriv->neigh_update.neigh_list,
  					    struct mlx5e_neigh_hash_entry,
  					    neigh_list);
  	     next;
  	     next = list_next_or_null_rcu(&rpriv->neigh_update.neigh_list,
  					  &next->neigh_list,
  					  struct mlx5e_neigh_hash_entry,
  					  neigh_list))
  		if (mlx5e_rep_neigh_entry_hold(next))
  			break;
  
  	rcu_read_unlock();
  
  	if (nhe)
  		mlx5e_rep_neigh_entry_release(nhe);
  
  	return next;
  }
  
  static void mlx5e_rep_neigh_stats_work(struct work_struct *work)
  {
  	struct mlx5e_rep_priv *rpriv = container_of(work, struct mlx5e_rep_priv,
  						    neigh_update.neigh_stats_work.work);
  	struct net_device *netdev = rpriv->netdev;
  	struct mlx5e_priv *priv = netdev_priv(netdev);
  	struct mlx5e_neigh_hash_entry *nhe = NULL;
  
  	rtnl_lock();
  	if (!list_empty(&rpriv->neigh_update.neigh_list))
  		mlx5e_rep_queue_neigh_stats_work(priv);
  
  	while ((nhe = mlx5e_get_next_nhe(rpriv, nhe)) != NULL)
  		mlx5e_tc_update_neigh_used_value(nhe);
  
  	rtnl_unlock();
  }
  
  static void mlx5e_rep_update_flows(struct mlx5e_priv *priv,
  				   struct mlx5e_encap_entry *e,
  				   bool neigh_connected,
  				   unsigned char ha[ETH_ALEN])
  {
  	struct ethhdr *eth = (struct ethhdr *)e->encap_header;
  	struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
  	bool encap_connected;
  	LIST_HEAD(flow_list);
  
  	ASSERT_RTNL();
  
  	/* wait for encap to be fully initialized */
  	wait_for_completion(&e->res_ready);
  
  	mutex_lock(&esw->offloads.encap_tbl_lock);
  	encap_connected = !!(e->flags & MLX5_ENCAP_ENTRY_VALID);
  	if (e->compl_result < 0 || (encap_connected == neigh_connected &&
  				    ether_addr_equal(e->h_dest, ha)))
  		goto unlock;
  
  	mlx5e_take_all_encap_flows(e, &flow_list);
  
  	if ((e->flags & MLX5_ENCAP_ENTRY_VALID) &&
  	    (!neigh_connected || !ether_addr_equal(e->h_dest, ha)))
  		mlx5e_tc_encap_flows_del(priv, e, &flow_list);
  
  	if (neigh_connected && !(e->flags & MLX5_ENCAP_ENTRY_VALID)) {
  		ether_addr_copy(e->h_dest, ha);
  		ether_addr_copy(eth->h_dest, ha);
  		/* Update the encap source mac, in case that we delete
  		 * the flows when encap source mac changed.
  		 */
  		ether_addr_copy(eth->h_source, e->route_dev->dev_addr);
  
  		mlx5e_tc_encap_flows_add(priv, e, &flow_list);
  	}
  unlock:
  	mutex_unlock(&esw->offloads.encap_tbl_lock);
  	mlx5e_put_encap_flow_list(priv, &flow_list);
  }
  
  static void mlx5e_rep_neigh_update(struct work_struct *work)
  {
  	struct mlx5e_neigh_hash_entry *nhe =
  		container_of(work, struct mlx5e_neigh_hash_entry, neigh_update_work);
  	struct neighbour *n = nhe->n;
  	struct mlx5e_encap_entry *e;
  	unsigned char ha[ETH_ALEN];
  	struct mlx5e_priv *priv;
  	bool neigh_connected;
  	u8 nud_state, dead;
  
  	rtnl_lock();
  
  	/* If these parameters are changed after we release the lock,
  	 * we'll receive another event letting us know about it.
  	 * We use this lock to avoid inconsistency between the neigh validity
  	 * and it's hw address.
  	 */
  	read_lock_bh(&n->lock);
  	memcpy(ha, n->ha, ETH_ALEN);
  	nud_state = n->nud_state;
  	dead = n->dead;
  	read_unlock_bh(&n->lock);
  
  	neigh_connected = (nud_state & NUD_VALID) && !dead;
  
  	trace_mlx5e_rep_neigh_update(nhe, ha, neigh_connected);
  
  	list_for_each_entry(e, &nhe->encap_list, encap_list) {
  		if (!mlx5e_encap_take(e))
  			continue;
  
  		priv = netdev_priv(e->out_dev);
  		mlx5e_rep_update_flows(priv, e, neigh_connected, ha);
  		mlx5e_encap_put(priv, e);
  	}
  	mlx5e_rep_neigh_entry_release(nhe);
  	rtnl_unlock();
  	neigh_release(n);
  }
  
  static struct mlx5e_rep_indr_block_priv *
  mlx5e_rep_indr_block_priv_lookup(struct mlx5e_rep_priv *rpriv,
  				 struct net_device *netdev)
  {
  	struct mlx5e_rep_indr_block_priv *cb_priv;
  
  	/* All callback list access should be protected by RTNL. */
  	ASSERT_RTNL();
  
  	list_for_each_entry(cb_priv,
  			    &rpriv->uplink_priv.tc_indr_block_priv_list,
  			    list)
  		if (cb_priv->netdev == netdev)
  			return cb_priv;
  
  	return NULL;
  }
  
  static void mlx5e_rep_indr_clean_block_privs(struct mlx5e_rep_priv *rpriv)
  {
  	struct mlx5e_rep_indr_block_priv *cb_priv, *temp;
  	struct list_head *head = &rpriv->uplink_priv.tc_indr_block_priv_list;
  
  	list_for_each_entry_safe(cb_priv, temp, head, list) {
  		mlx5e_rep_indr_unregister_block(rpriv, cb_priv->netdev);
  		kfree(cb_priv);
  	}
  }
  
  static int
  mlx5e_rep_indr_offload(struct net_device *netdev,
  		       struct flow_cls_offload *flower,
  		       struct mlx5e_rep_indr_block_priv *indr_priv)
  {
  	unsigned long flags = MLX5_TC_FLAG(EGRESS) | MLX5_TC_FLAG(ESW_OFFLOAD);
  	struct mlx5e_priv *priv = netdev_priv(indr_priv->rpriv->netdev);
  	int err = 0;
  
  	switch (flower->command) {
  	case FLOW_CLS_REPLACE:
  		err = mlx5e_configure_flower(netdev, priv, flower, flags);
  		break;
  	case FLOW_CLS_DESTROY:
  		err = mlx5e_delete_flower(netdev, priv, flower, flags);
  		break;
  	case FLOW_CLS_STATS:
  		err = mlx5e_stats_flower(netdev, priv, flower, flags);
  		break;
  	default:
  		err = -EOPNOTSUPP;
  	}
  
  	return err;
  }
  
  static int mlx5e_rep_indr_setup_block_cb(enum tc_setup_type type,
  					 void *type_data, void *indr_priv)
  {
  	struct mlx5e_rep_indr_block_priv *priv = indr_priv;
  
  	switch (type) {
  	case TC_SETUP_CLSFLOWER:
  		return mlx5e_rep_indr_offload(priv->netdev, type_data, priv);
  	default:
  		return -EOPNOTSUPP;
  	}
  }
  
  static void mlx5e_rep_indr_tc_block_unbind(void *cb_priv)
  {
  	struct mlx5e_rep_indr_block_priv *indr_priv = cb_priv;
  
  	list_del(&indr_priv->list);
  	kfree(indr_priv);
  }
  
  static LIST_HEAD(mlx5e_block_cb_list);
  
  static int
  mlx5e_rep_indr_setup_tc_block(struct net_device *netdev,
  			      struct mlx5e_rep_priv *rpriv,
  			      struct flow_block_offload *f)
  {
  	struct mlx5e_rep_indr_block_priv *indr_priv;
  	struct flow_block_cb *block_cb;
  
  	if (f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS)
  		return -EOPNOTSUPP;
  
  	f->unlocked_driver_cb = true;
  	f->driver_block_list = &mlx5e_block_cb_list;
  
  	switch (f->command) {
  	case FLOW_BLOCK_BIND:
  		indr_priv = mlx5e_rep_indr_block_priv_lookup(rpriv, netdev);
  		if (indr_priv)
  			return -EEXIST;
  
  		indr_priv = kmalloc(sizeof(*indr_priv), GFP_KERNEL);
  		if (!indr_priv)
  			return -ENOMEM;
  
  		indr_priv->netdev = netdev;
  		indr_priv->rpriv = rpriv;
  		list_add(&indr_priv->list,
  			 &rpriv->uplink_priv.tc_indr_block_priv_list);
  
  		block_cb = flow_block_cb_alloc(mlx5e_rep_indr_setup_block_cb,
  					       indr_priv, indr_priv,
  					       mlx5e_rep_indr_tc_block_unbind);
  		if (IS_ERR(block_cb)) {
  			list_del(&indr_priv->list);
  			kfree(indr_priv);
  			return PTR_ERR(block_cb);
  		}
  		flow_block_cb_add(block_cb, f);
  		list_add_tail(&block_cb->driver_list, &mlx5e_block_cb_list);
  
  		return 0;
  	case FLOW_BLOCK_UNBIND:
  		indr_priv = mlx5e_rep_indr_block_priv_lookup(rpriv, netdev);
  		if (!indr_priv)
  			return -ENOENT;
  
  		block_cb = flow_block_cb_lookup(f->block,
  						mlx5e_rep_indr_setup_block_cb,
  						indr_priv);
  		if (!block_cb)
  			return -ENOENT;
  
  		flow_block_cb_remove(block_cb, f);
  		list_del(&block_cb->driver_list);
  		return 0;
  	default:
  		return -EOPNOTSUPP;
  	}
  	return 0;
  }
  
  static
  int mlx5e_rep_indr_setup_tc_cb(struct net_device *netdev, void *cb_priv,
  			       enum tc_setup_type type, void *type_data)
  {
  	switch (type) {
  	case TC_SETUP_BLOCK:
  		return mlx5e_rep_indr_setup_tc_block(netdev, cb_priv,
  						      type_data);
  	default:
  		return -EOPNOTSUPP;
  	}
  }
  
  static int mlx5e_rep_indr_register_block(struct mlx5e_rep_priv *rpriv,
  					 struct net_device *netdev)
  {
  	int err;
  
  	err = __flow_indr_block_cb_register(netdev, rpriv,
  					    mlx5e_rep_indr_setup_tc_cb,
  					    rpriv);
  	if (err) {
  		struct mlx5e_priv *priv = netdev_priv(rpriv->netdev);
  
  		mlx5_core_err(priv->mdev, "Failed to register remote block notifier for %s err=%d\n",
  			      netdev_name(netdev), err);
  	}
  	return err;
  }
  
  static void mlx5e_rep_indr_unregister_block(struct mlx5e_rep_priv *rpriv,
  					    struct net_device *netdev)
  {
  	__flow_indr_block_cb_unregister(netdev, mlx5e_rep_indr_setup_tc_cb,
  					rpriv);
  }
  
  static int mlx5e_nic_rep_netdevice_event(struct notifier_block *nb,
  					 unsigned long event, void *ptr)
  {
  	struct mlx5e_rep_priv *rpriv = container_of(nb, struct mlx5e_rep_priv,
  						     uplink_priv.netdevice_nb);
  	struct mlx5e_priv *priv = netdev_priv(rpriv->netdev);
  	struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
  
  	if (!mlx5e_tc_tun_device_to_offload(priv, netdev) &&
  	    !(is_vlan_dev(netdev) && vlan_dev_real_dev(netdev) == rpriv->netdev))
  		return NOTIFY_OK;
  
  	switch (event) {
  	case NETDEV_REGISTER:
  		mlx5e_rep_indr_register_block(rpriv, netdev);
  		break;
  	case NETDEV_UNREGISTER:
  		mlx5e_rep_indr_unregister_block(rpriv, netdev);
  		break;
  	}
  	return NOTIFY_OK;
  }
  
  static void
  mlx5e_rep_queue_neigh_update_work(struct mlx5e_priv *priv,
  				  struct mlx5e_neigh_hash_entry *nhe,
  				  struct neighbour *n)
  {
  	/* Take a reference to ensure the neighbour and mlx5 encap
  	 * entry won't be destructed until we drop the reference in
  	 * delayed work.
  	 */
  	neigh_hold(n);
  
  	/* This assignment is valid as long as the the neigh reference
  	 * is taken
  	 */
  	nhe->n = n;
  
  	if (!queue_work(priv->wq, &nhe->neigh_update_work)) {
  		mlx5e_rep_neigh_entry_release(nhe);
  		neigh_release(n);
  	}
  }
  
  static struct mlx5e_neigh_hash_entry *
  mlx5e_rep_neigh_entry_lookup(struct mlx5e_priv *priv,
  			     struct mlx5e_neigh *m_neigh);
  
  static int mlx5e_rep_netevent_event(struct notifier_block *nb,
  				    unsigned long event, void *ptr)
  {
  	struct mlx5e_rep_priv *rpriv = container_of(nb, struct mlx5e_rep_priv,
  						    neigh_update.netevent_nb);
  	struct mlx5e_neigh_update_table *neigh_update = &rpriv->neigh_update;
  	struct net_device *netdev = rpriv->netdev;
  	struct mlx5e_priv *priv = netdev_priv(netdev);
  	struct mlx5e_neigh_hash_entry *nhe = NULL;
  	struct mlx5e_neigh m_neigh = {};
  	struct neigh_parms *p;
  	struct neighbour *n;
  	bool found = false;
  
  	switch (event) {
  	case NETEVENT_NEIGH_UPDATE:
  		n = ptr;
  #if IS_ENABLED(CONFIG_IPV6)
  		if (n->tbl != ipv6_stub->nd_tbl && n->tbl != &arp_tbl)
  #else
  		if (n->tbl != &arp_tbl)
  #endif
  			return NOTIFY_DONE;
  
  		m_neigh.dev = n->dev;
  		m_neigh.family = n->ops->family;
  		memcpy(&m_neigh.dst_ip, n->primary_key, n->tbl->key_len);
  
  		rcu_read_lock();
  		nhe = mlx5e_rep_neigh_entry_lookup(priv, &m_neigh);
  		rcu_read_unlock();
  		if (!nhe)
  			return NOTIFY_DONE;
  
  		mlx5e_rep_queue_neigh_update_work(priv, nhe, n);
  		break;
  
  	case NETEVENT_DELAY_PROBE_TIME_UPDATE:
  		p = ptr;
  
  		/* We check the device is present since we don't care about
  		 * changes in the default table, we only care about changes
  		 * done per device delay prob time parameter.
  		 */
  #if IS_ENABLED(CONFIG_IPV6)
  		if (!p->dev || (p->tbl != ipv6_stub->nd_tbl && p->tbl != &arp_tbl))
  #else
  		if (!p->dev || p->tbl != &arp_tbl)
  #endif
  			return NOTIFY_DONE;
  
  		rcu_read_lock();
  		list_for_each_entry_rcu(nhe, &neigh_update->neigh_list,
  					neigh_list) {
  			if (p->dev == nhe->m_neigh.dev) {
  				found = true;
  				break;
  			}
  		}
  		rcu_read_unlock();
  		if (!found)
  			return NOTIFY_DONE;
  
  		neigh_update->min_interval = min_t(unsigned long,
  						   NEIGH_VAR(p, DELAY_PROBE_TIME),
  						   neigh_update->min_interval);
  		mlx5_fc_update_sampling_interval(priv->mdev,
  						 neigh_update->min_interval);
  		break;
  	}
  	return NOTIFY_DONE;
  }
  
  static const struct rhashtable_params mlx5e_neigh_ht_params = {
  	.head_offset = offsetof(struct mlx5e_neigh_hash_entry, rhash_node),
  	.key_offset = offsetof(struct mlx5e_neigh_hash_entry, m_neigh),
  	.key_len = sizeof(struct mlx5e_neigh),
  	.automatic_shrinking = true,
  };
  
  static int mlx5e_rep_neigh_init(struct mlx5e_rep_priv *rpriv)
  {
  	struct mlx5e_neigh_update_table *neigh_update = &rpriv->neigh_update;
  	int err;
  
  	err = rhashtable_init(&neigh_update->neigh_ht, &mlx5e_neigh_ht_params);
  	if (err)
  		return err;
  
  	INIT_LIST_HEAD(&neigh_update->neigh_list);
  	mutex_init(&neigh_update->encap_lock);
  	INIT_DELAYED_WORK(&neigh_update->neigh_stats_work,
  			  mlx5e_rep_neigh_stats_work);
  	mlx5e_rep_neigh_update_init_interval(rpriv);
  
  	rpriv->neigh_update.netevent_nb.notifier_call = mlx5e_rep_netevent_event;
  	err = register_netevent_notifier(&rpriv->neigh_update.netevent_nb);
  	if (err)
  		goto out_err;
  	return 0;
  
  out_err:
  	rhashtable_destroy(&neigh_update->neigh_ht);
  	return err;
  }
  
  static void mlx5e_rep_neigh_cleanup(struct mlx5e_rep_priv *rpriv)
  {
  	struct mlx5e_neigh_update_table *neigh_update = &rpriv->neigh_update;
  	struct mlx5e_priv *priv = netdev_priv(rpriv->netdev);
  
  	unregister_netevent_notifier(&neigh_update->netevent_nb);
  
  	flush_workqueue(priv->wq); /* flush neigh update works */
  
  	cancel_delayed_work_sync(&rpriv->neigh_update.neigh_stats_work);
  
  	mutex_destroy(&neigh_update->encap_lock);
  	rhashtable_destroy(&neigh_update->neigh_ht);
  }
  
  static int mlx5e_rep_neigh_entry_insert(struct mlx5e_priv *priv,
  					struct mlx5e_neigh_hash_entry *nhe)
  {
  	struct mlx5e_rep_priv *rpriv = priv->ppriv;
  	int err;
  
  	err = rhashtable_insert_fast(&rpriv->neigh_update.neigh_ht,
  				     &nhe->rhash_node,
  				     mlx5e_neigh_ht_params);
  	if (err)
  		return err;
  
  	list_add_rcu(&nhe->neigh_list, &rpriv->neigh_update.neigh_list);
  
  	return err;
  }
  
  static void mlx5e_rep_neigh_entry_remove(struct mlx5e_neigh_hash_entry *nhe)
  {
  	struct mlx5e_rep_priv *rpriv = nhe->priv->ppriv;
  
  	mutex_lock(&rpriv->neigh_update.encap_lock);
  
  	list_del_rcu(&nhe->neigh_list);
  
  	rhashtable_remove_fast(&rpriv->neigh_update.neigh_ht,
  			       &nhe->rhash_node,
  			       mlx5e_neigh_ht_params);
  	mutex_unlock(&rpriv->neigh_update.encap_lock);
  }
  
  /* This function must only be called under the representor's encap_lock or
   * inside rcu read lock section.
   */
  static struct mlx5e_neigh_hash_entry *
  mlx5e_rep_neigh_entry_lookup(struct mlx5e_priv *priv,
  			     struct mlx5e_neigh *m_neigh)
  {
  	struct mlx5e_rep_priv *rpriv = priv->ppriv;
  	struct mlx5e_neigh_update_table *neigh_update = &rpriv->neigh_update;
  	struct mlx5e_neigh_hash_entry *nhe;
  
  	nhe = rhashtable_lookup_fast(&neigh_update->neigh_ht, m_neigh,
  				     mlx5e_neigh_ht_params);
  	return nhe && mlx5e_rep_neigh_entry_hold(nhe) ? nhe : NULL;
  }
  
  static int mlx5e_rep_neigh_entry_create(struct mlx5e_priv *priv,
  					struct mlx5e_encap_entry *e,
  					struct mlx5e_neigh_hash_entry **nhe)
  {
  	int err;
  
  	*nhe = kzalloc(sizeof(**nhe), GFP_KERNEL);
  	if (!*nhe)
  		return -ENOMEM;
  
  	(*nhe)->priv = priv;
  	memcpy(&(*nhe)->m_neigh, &e->m_neigh, sizeof(e->m_neigh));
  	INIT_WORK(&(*nhe)->neigh_update_work, mlx5e_rep_neigh_update);
  	spin_lock_init(&(*nhe)->encap_list_lock);
  	INIT_LIST_HEAD(&(*nhe)->encap_list);
  	refcount_set(&(*nhe)->refcnt, 1);
  
  	err = mlx5e_rep_neigh_entry_insert(priv, *nhe);
  	if (err)
  		goto out_free;
  	return 0;
  
  out_free:
  	kfree(*nhe);
  	return err;
  }
  
  int mlx5e_rep_encap_entry_attach(struct mlx5e_priv *priv,
  				 struct mlx5e_encap_entry *e)
  {
  	struct mlx5e_rep_priv *rpriv = priv->ppriv;
  	struct mlx5_rep_uplink_priv *uplink_priv = &rpriv->uplink_priv;
  	struct mlx5_tun_entropy *tun_entropy = &uplink_priv->tun_entropy;
  	struct mlx5e_neigh_hash_entry *nhe;
  	int err;
  
  	err = mlx5_tun_entropy_refcount_inc(tun_entropy, e->reformat_type);
  	if (err)
  		return err;
  
  	mutex_lock(&rpriv->neigh_update.encap_lock);
  	nhe = mlx5e_rep_neigh_entry_lookup(priv, &e->m_neigh);
  	if (!nhe) {
  		err = mlx5e_rep_neigh_entry_create(priv, e, &nhe);
  		if (err) {
  			mutex_unlock(&rpriv->neigh_update.encap_lock);
  			mlx5_tun_entropy_refcount_dec(tun_entropy,
  						      e->reformat_type);
  			return err;
  		}
  	}
  
  	e->nhe = nhe;
  	spin_lock(&nhe->encap_list_lock);
  	list_add_rcu(&e->encap_list, &nhe->encap_list);
  	spin_unlock(&nhe->encap_list_lock);
  
  	mutex_unlock(&rpriv->neigh_update.encap_lock);
  
  	return 0;
  }
  
  void mlx5e_rep_encap_entry_detach(struct mlx5e_priv *priv,
  				  struct mlx5e_encap_entry *e)
  {
  	struct mlx5e_rep_priv *rpriv = priv->ppriv;
  	struct mlx5_rep_uplink_priv *uplink_priv = &rpriv->uplink_priv;
  	struct mlx5_tun_entropy *tun_entropy = &uplink_priv->tun_entropy;
  
  	if (!e->nhe)
  		return;
  
  	spin_lock(&e->nhe->encap_list_lock);
  	list_del_rcu(&e->encap_list);
  	spin_unlock(&e->nhe->encap_list_lock);
  
  	mlx5e_rep_neigh_entry_release(e->nhe);
  	e->nhe = NULL;
  	mlx5_tun_entropy_refcount_dec(tun_entropy, e->reformat_type);
  }
  
  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;
  }
  
  static int
  mlx5e_rep_setup_tc_cls_flower(struct mlx5e_priv *priv,
  			      struct flow_cls_offload *cls_flower, int flags)
  {
  	switch (cls_flower->command) {
  	case FLOW_CLS_REPLACE:
  		return mlx5e_configure_flower(priv->netdev, priv, cls_flower,
  					      flags);
  	case FLOW_CLS_DESTROY:
  		return mlx5e_delete_flower(priv->netdev, priv, cls_flower,
  					   flags);
  	case FLOW_CLS_STATS:
  		return mlx5e_stats_flower(priv->netdev, priv, cls_flower,
  					  flags);
  	default:
  		return -EOPNOTSUPP;
  	}
  }
  
  static
  int mlx5e_rep_setup_tc_cls_matchall(struct mlx5e_priv *priv,
  				    struct tc_cls_matchall_offload *ma)
  {
  	switch (ma->command) {
  	case TC_CLSMATCHALL_REPLACE:
  		return mlx5e_tc_configure_matchall(priv, ma);
  	case TC_CLSMATCHALL_DESTROY:
  		return mlx5e_tc_delete_matchall(priv, ma);
  	case TC_CLSMATCHALL_STATS:
  		mlx5e_tc_stats_matchall(priv, ma);
  		return 0;
  	default:
  		return -EOPNOTSUPP;
  	}
  }
  
  static int mlx5e_rep_setup_tc_cb(enum tc_setup_type type, void *type_data,
  				 void *cb_priv)
  {
  	unsigned long flags = MLX5_TC_FLAG(INGRESS) | MLX5_TC_FLAG(ESW_OFFLOAD);
  	struct mlx5e_priv *priv = cb_priv;
  
  	switch (type) {
  	case TC_SETUP_CLSFLOWER:
  		return mlx5e_rep_setup_tc_cls_flower(priv, type_data, flags);
  	case TC_SETUP_CLSMATCHALL:
  		return mlx5e_rep_setup_tc_cls_matchall(priv, type_data);
  	default:
  		return -EOPNOTSUPP;
  	}
  }
  
  static LIST_HEAD(mlx5e_rep_block_cb_list);
  
  static int mlx5e_rep_setup_tc(struct net_device *dev, enum tc_setup_type type,
  			      void *type_data)
  {
  	struct mlx5e_priv *priv = netdev_priv(dev);
  	struct flow_block_offload *f = type_data;
  
  	switch (type) {
  	case TC_SETUP_BLOCK:
  		f->unlocked_driver_cb = true;
  		return flow_block_cb_setup_simple(type_data,
  						  &mlx5e_rep_block_cb_list,
  						  mlx5e_rep_setup_tc_cb,
  						  priv, priv, true);
  	default:
  		return -EOPNOTSUPP;
  	}
  }
  
  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);
  }
  
  static 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;
  }
  
  static 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);
  	memcpy(stats, &priv->stats.vf_vport, sizeof(*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_uplink_rep_change_mtu(struct net_device *netdev, int new_mtu)
  {
  	return mlx5e_change_mtu(netdev, new_mtu, mlx5e_set_dev_port_mtu);
  }
  
  static int mlx5e_uplink_rep_set_mac(struct net_device *netdev, void *addr)
  {
  	struct sockaddr *saddr = addr;
  
  	if (!is_valid_ether_addr(saddr->sa_data))
  		return -EADDRNOTAVAIL;
  
  	ether_addr_copy(netdev->dev_addr, saddr->sa_data);
  	return 0;
  }
  
  static int mlx5e_uplink_rep_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos,
  					__be16 vlan_proto)
  {
  	netdev_warn_once(dev, "legacy vf vlan setting isn't supported in switchdev mode\n");
  
  	if (vlan != 0)
  		return -EOPNOTSUPP;
  
  	/* allow setting 0-vid for compatibility with libvirt */
  	return 0;
  }
  
  static struct devlink_port *mlx5e_get_devlink_port(struct net_device *dev)
  {
  	struct mlx5e_priv *priv = netdev_priv(dev);
  	struct mlx5e_rep_priv *rpriv = priv->ppriv;
  
  	return &rpriv->dl_port;
  }
  
  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_get_devlink_port = mlx5e_get_devlink_port,
  	.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,
  };
  
  static const struct net_device_ops mlx5e_netdev_ops_uplink_rep = {
  	.ndo_open                = mlx5e_open,
  	.ndo_stop                = mlx5e_close,
  	.ndo_start_xmit          = mlx5e_xmit,
  	.ndo_set_mac_address     = mlx5e_uplink_rep_set_mac,
  	.ndo_setup_tc            = mlx5e_rep_setup_tc,
  	.ndo_get_devlink_port = mlx5e_get_devlink_port,
  	.ndo_get_stats64         = mlx5e_get_stats,
  	.ndo_has_offload_stats	 = mlx5e_rep_has_offload_stats,
  	.ndo_get_offload_stats	 = mlx5e_rep_get_offload_stats,
  	.ndo_change_mtu          = mlx5e_uplink_rep_change_mtu,
  	.ndo_udp_tunnel_add      = mlx5e_add_vxlan_port,
  	.ndo_udp_tunnel_del      = mlx5e_del_vxlan_port,
  	.ndo_features_check      = mlx5e_features_check,
  	.ndo_set_vf_mac          = mlx5e_set_vf_mac,
  	.ndo_set_vf_rate         = mlx5e_set_vf_rate,
  	.ndo_get_vf_config       = mlx5e_get_vf_config,
  	.ndo_get_vf_stats        = mlx5e_get_vf_stats,
  	.ndo_set_vf_vlan         = mlx5e_uplink_rep_set_vf_vlan,
  	.ndo_set_features        = mlx5e_set_features,
  };
  
  bool mlx5e_eswitch_rep(struct net_device *netdev)
  {
  	if (netdev->netdev_ops == &mlx5e_netdev_ops_rep ||
  	    netdev->netdev_ops == &mlx5e_netdev_ops_uplink_rep)
  		return true;
  
  	return false;
  }
  
  static void mlx5e_build_rep_params(struct net_device *netdev)
  {
  	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;
  
  	u8 cq_period_mode = MLX5_CAP_GEN(mdev, cq_period_start_from_cqe) ?
  					 MLX5_CQ_PERIOD_MODE_START_FROM_CQE :
  					 MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
  
  	params = &priv->channels.params;
  	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);
  
  	/* CQ moderation params */
  	params->rx_dim_enabled = MLX5_CAP_GEN(mdev, cq_moderation);
  	mlx5e_set_rx_cq_mode_params(params, cq_period_mode);
  
  	params->num_tc                = 1;
  	params->tunneled_offload_en = false;
  
  	mlx5_query_min_inline(mdev, &params->tx_min_inline_mode);
  
  	/* RSS */
  	mlx5e_build_rss_params(&priv->rss_params, params->num_channels);
  }
  
  static void mlx5e_build_rep_netdev(struct net_device *netdev)
  {
  	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;
  
  	if (rep->vport == MLX5_VPORT_UPLINK) {
  		SET_NETDEV_DEV(netdev, mdev->device);
  		netdev->netdev_ops = &mlx5e_netdev_ops_uplink_rep;
  		/* we want a persistent mac for the uplink rep */
  		mlx5_query_mac_address(mdev, netdev->dev_addr);
  		netdev->ethtool_ops = &mlx5e_uplink_rep_ethtool_ops;
  #ifdef CONFIG_MLX5_CORE_EN_DCB
  		if (MLX5_CAP_GEN(mdev, qos))
  			netdev->dcbnl_ops = &mlx5e_dcbnl_ops;
  #endif
  	} else {
  		netdev->netdev_ops = &mlx5e_netdev_ops_rep;
  		eth_hw_addr_random(netdev);
  		netdev->ethtool_ops = &mlx5e_rep_ethtool_ops;
  	}
  
  	netdev->watchdog_timeo    = 15 * HZ;
  
  	netdev->features       |= NETIF_F_NETNS_LOCAL;
  
  	netdev->hw_features    |= NETIF_F_HW_TC;
  	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;
  
  	if (rep->vport == MLX5_VPORT_UPLINK)
  		netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
  	else
  		netdev->features |= NETIF_F_VLAN_CHALLENGED;
  
  	netdev->features |= netdev->hw_features;
  }
  
  static int mlx5e_init_rep(struct mlx5_core_dev *mdev,
  			  struct net_device *netdev,
  			  const struct mlx5e_profile *profile,
  			  void *ppriv)
  {
  	struct mlx5e_priv *priv = netdev_priv(netdev);
  	int err;
  
  	err = mlx5e_netdev_init(netdev, priv, mdev, profile, ppriv);
  	if (err)
  		return err;
  
  	priv->channels.params.num_channels = MLX5E_REP_PARAMS_DEF_NUM_CHANNELS;
  
  	mlx5e_build_rep_params(netdev);
  	mlx5e_build_rep_netdev(netdev);
  
  	mlx5e_timestamp_init(priv);
  
  	return 0;
  }
  
  static void mlx5e_cleanup_rep(struct mlx5e_priv *priv)
  {
  	mlx5e_netdev_cleanup(priv->netdev, priv);
  }
  
  static int mlx5e_create_rep_ttc_table(struct mlx5e_priv *priv)
  {
  	struct ttc_params ttc_params = {};
  	int tt, err;
  
  	priv->fs.ns = mlx5_get_flow_namespace(priv->mdev,
  					      MLX5_FLOW_NAMESPACE_KERNEL);
  
  	/* The inner_ttc in the ttc params is intentionally not set */
  	ttc_params.any_tt_tirn = priv->direct_tir[0].tirn;
  	mlx5e_set_ttc_ft_params(&ttc_params);
  	for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++)
  		ttc_params.indir_tirn[tt] = priv->indir_tir[tt].tirn;
  
  	err = mlx5e_create_ttc_table(priv, &ttc_params, &priv->fs.ttc);
  	if (err) {
  		netdev_err(priv->netdev, "Failed to create rep ttc table, err=%d\n", err);
  		return err;
  	}
  	return 0;
  }
  
  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_TIR;
  	dest.tir_num = priv->direct_tir[0].tirn;
  	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 int mlx5e_init_rep_rx(struct mlx5e_priv *priv)
  {
  	struct mlx5_core_dev *mdev = priv->mdev;
  	int err;
  
  	mlx5e_init_l2_addr(priv);
  
  	err = mlx5e_open_drop_rq(priv, &priv->drop_rq);
  	if (err) {
  		mlx5_core_err(mdev, "open drop rq failed, %d\n", err);
  		return err;
  	}
  
  	err = mlx5e_create_indirect_rqt(priv);
  	if (err)
  		goto err_close_drop_rq;
  
  	err = mlx5e_create_direct_rqts(priv, priv->direct_tir);
  	if (err)
  		goto err_destroy_indirect_rqts;
  
  	err = mlx5e_create_indirect_tirs(priv, false);
  	if (err)
  		goto err_destroy_direct_rqts;
  
  	err = mlx5e_create_direct_tirs(priv, priv->direct_tir);
  	if (err)
  		goto err_destroy_indirect_tirs;
  
  	err = mlx5e_create_rep_ttc_table(priv);
  	if (err)
  		goto err_destroy_direct_tirs;
  
  	err = mlx5e_create_rep_vport_rx_rule(priv);
  	if (err)
  		goto err_destroy_ttc_table;
  
  	return 0;
  
  err_destroy_ttc_table:
  	mlx5e_destroy_ttc_table(priv, &priv->fs.ttc);
  err_destroy_direct_tirs:
  	mlx5e_destroy_direct_tirs(priv, priv->direct_tir);
  err_destroy_indirect_tirs:
  	mlx5e_destroy_indirect_tirs(priv, false);
  err_destroy_direct_rqts:
  	mlx5e_destroy_direct_rqts(priv, priv->direct_tir);
  err_destroy_indirect_rqts:
  	mlx5e_destroy_rqt(priv, &priv->indir_rqt);
  err_close_drop_rq:
  	mlx5e_close_drop_rq(&priv->drop_rq);
  	return err;
  }
  
  static void mlx5e_cleanup_rep_rx(struct mlx5e_priv *priv)
  {
  	struct mlx5e_rep_priv *rpriv = priv->ppriv;
  
  	mlx5_del_flow_rules(rpriv->vport_rx_rule);
  	mlx5e_destroy_ttc_table(priv, &priv->fs.ttc);
  	mlx5e_destroy_direct_tirs(priv, priv->direct_tir);
  	mlx5e_destroy_indirect_tirs(priv, false);
  	mlx5e_destroy_direct_rqts(priv, priv->direct_tir);
  	mlx5e_destroy_rqt(priv, &priv->indir_rqt);
  	mlx5e_close_drop_rq(&priv->drop_rq);
  }
  
  static int mlx5e_init_rep_tx(struct mlx5e_priv *priv)
  {
  	struct mlx5e_rep_priv *rpriv = priv->ppriv;
  	struct mlx5_rep_uplink_priv *uplink_priv;
  	int err;
  
  	err = mlx5e_create_tises(priv);
  	if (err) {
  		mlx5_core_warn(priv->mdev, "create tises failed, %d\n", err);
  		return err;
  	}
  
  	if (rpriv->rep->vport == MLX5_VPORT_UPLINK) {
  		uplink_priv = &rpriv->uplink_priv;
  
  		mutex_init(&uplink_priv->unready_flows_lock);
  		INIT_LIST_HEAD(&uplink_priv->unready_flows);
  
  		/* init shared tc flow table */
  		err = mlx5e_tc_esw_init(&uplink_priv->tc_ht);
  		if (err)
  			goto destroy_tises;
  
  		mlx5_init_port_tun_entropy(&uplink_priv->tun_entropy, priv->mdev);
  
  		/* init indirect block notifications */
  		INIT_LIST_HEAD(&uplink_priv->tc_indr_block_priv_list);
  		uplink_priv->netdevice_nb.notifier_call = mlx5e_nic_rep_netdevice_event;
  		err = register_netdevice_notifier(&uplink_priv->netdevice_nb);
  		if (err) {
  			mlx5_core_err(priv->mdev, "Failed to register netdev notifier\n");
  			goto tc_esw_cleanup;
  		}
  	}
  
  	return 0;
  
  tc_esw_cleanup:
  	mlx5e_tc_esw_cleanup(&uplink_priv->tc_ht);
  destroy_tises:
  	mlx5e_destroy_tises(priv);
  	return err;
  }
  
  static void mlx5e_cleanup_rep_tx(struct mlx5e_priv *priv)
  {
  	struct mlx5e_rep_priv *rpriv = priv->ppriv;
  
  	mlx5e_destroy_tises(priv);
  
  	if (rpriv->rep->vport == MLX5_VPORT_UPLINK) {
  		/* clean indirect TC block notifications */
  		unregister_netdevice_notifier(&rpriv->uplink_priv.netdevice_nb);
  		mlx5e_rep_indr_clean_block_privs(rpriv);
  
  		/* delete shared tc flow table */
  		mlx5e_tc_esw_cleanup(&rpriv->uplink_priv.tc_ht);
  		mutex_destroy(&rpriv->uplink_priv.unready_flows_lock);
  	}
  }
  
  static void mlx5e_rep_enable(struct mlx5e_priv *priv)
  {
  	mlx5e_set_netdev_mtu_boundaries(priv);
  }
  
  static int mlx5e_update_rep_rx(struct mlx5e_priv *priv)
  {
  	return 0;
  }
  
  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) {
  		struct mlx5e_rep_priv *rpriv = priv->ppriv;
  
  		queue_work(priv->wq, &rpriv->uplink_priv.reoffload_flows_work);
  
  		return NOTIFY_OK;
  	}
  
  	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;
  	struct mlx5e_rep_priv *rpriv = priv->ppriv;
  	u16 max_mtu;
  
  	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);
  
  	INIT_WORK(&rpriv->uplink_priv.reoffload_flows_work,
  		  mlx5e_tc_reoffload_flows_work);
  
  	mlx5_lag_add(mdev, netdev);
  	priv->events_nb.notifier_call = uplink_rep_async_event;
  	mlx5_notifier_register(mdev, &priv->events_nb);
  #ifdef CONFIG_MLX5_CORE_EN_DCB
  	mlx5e_dcbnl_initialize(priv);
  	mlx5e_dcbnl_init_app(priv);
  #endif
  }
  
  static void mlx5e_uplink_rep_disable(struct mlx5e_priv *priv)
  {
  	struct mlx5_core_dev *mdev = priv->mdev;
  	struct mlx5e_rep_priv *rpriv = priv->ppriv;
  
  #ifdef CONFIG_MLX5_CORE_EN_DCB
  	mlx5e_dcbnl_delete_app(priv);
  #endif
  	mlx5_notifier_unregister(mdev, &priv->events_nb);
  	cancel_work_sync(&rpriv->uplink_priv.reoffload_flows_work);
  	mlx5_lag_remove(mdev);
  }
  
  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,
  	.update_rx		= mlx5e_update_rep_rx,
  	.update_stats           = mlx5e_rep_update_hw_counters,
  	.rx_handlers.handle_rx_cqe       = mlx5e_handle_rx_cqe_rep,
  	.rx_handlers.handle_rx_cqe_mpwqe = mlx5e_handle_rx_cqe_mpwrq,
  	.max_tc			= 1,
  	.rq_groups		= MLX5E_NUM_RQ_GROUPS(REGULAR),
  };
  
  static const struct mlx5e_profile mlx5e_uplink_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_uplink_rep_enable,
  	.disable	        = mlx5e_uplink_rep_disable,
  	.update_rx		= mlx5e_update_rep_rx,
  	.update_stats           = mlx5e_uplink_rep_update_hw_counters,
  	.update_carrier	        = mlx5e_update_carrier,
  	.rx_handlers.handle_rx_cqe       = mlx5e_handle_rx_cqe_rep,
  	.rx_handlers.handle_rx_cqe_mpwqe = mlx5e_handle_rx_cqe_mpwrq,
  	.max_tc			= MLX5E_MAX_NUM_TC,
  	.rq_groups		= MLX5E_NUM_RQ_GROUPS(REGULAR),
  };
  
  static bool
  is_devlink_port_supported(const struct mlx5_core_dev *dev,
  			  const struct mlx5e_rep_priv *rpriv)
  {
  	return rpriv->rep->vport == MLX5_VPORT_UPLINK ||
  	       rpriv->rep->vport == MLX5_VPORT_PF ||
  	       mlx5_eswitch_is_vf_vport(dev->priv.eswitch, rpriv->rep->vport);
  }
  
  static unsigned int
  vport_to_devlink_port_index(const struct mlx5_core_dev *dev, u16 vport_num)
  {
  	return (MLX5_CAP_GEN(dev, vhca_id) << 16) | vport_num;
  }
  
  static int register_devlink_port(struct mlx5_core_dev *dev,
  				 struct mlx5e_rep_priv *rpriv)
  {
  	struct devlink *devlink = priv_to_devlink(dev);
  	struct mlx5_eswitch_rep *rep = rpriv->rep;
  	struct netdev_phys_item_id ppid = {};
  	unsigned int dl_port_index = 0;
  
  	if (!is_devlink_port_supported(dev, rpriv))
  		return 0;
  
  	mlx5e_rep_get_port_parent_id(rpriv->netdev, &ppid);
  
  	if (rep->vport == MLX5_VPORT_UPLINK) {
  		devlink_port_attrs_set(&rpriv->dl_port,
  				       DEVLINK_PORT_FLAVOUR_PHYSICAL,
  				       PCI_FUNC(dev->pdev->devfn), false, 0,
  				       &ppid.id[0], ppid.id_len);
  		dl_port_index = vport_to_devlink_port_index(dev, rep->vport);
  	} else if (rep->vport == MLX5_VPORT_PF) {
  		devlink_port_attrs_pci_pf_set(&rpriv->dl_port,
  					      &ppid.id[0], ppid.id_len,
  					      dev->pdev->devfn);
  		dl_port_index = rep->vport;
  	} else if (mlx5_eswitch_is_vf_vport(dev->priv.eswitch,
  					    rpriv->rep->vport)) {
  		devlink_port_attrs_pci_vf_set(&rpriv->dl_port,
  					      &ppid.id[0], ppid.id_len,
  					      dev->pdev->devfn,
  					      rep->vport - 1);
  		dl_port_index = vport_to_devlink_port_index(dev, rep->vport);
  	}
  
  	return devlink_port_register(devlink, &rpriv->dl_port, dl_port_index);
  }
  
  static void unregister_devlink_port(struct mlx5_core_dev *dev,
  				    struct mlx5e_rep_priv *rpriv)
  {
  	if (is_devlink_port_supported(dev, rpriv))
  		devlink_port_unregister(&rpriv->dl_port);
  }
  
  /* e-Switch vport representors */
  static int
  mlx5e_vport_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)
  {
  	const struct mlx5e_profile *profile;
  	struct mlx5e_rep_priv *rpriv;
  	struct net_device *netdev;
  	int nch, err;
  
  	rpriv = kzalloc(sizeof(*rpriv), GFP_KERNEL);
  	if (!rpriv)
  		return -ENOMEM;
  
  	/* rpriv->rep to be looked up when profile->init() is called */
  	rpriv->rep = rep;
  
  	nch = mlx5e_get_max_num_channels(dev);
  	profile = (rep->vport == MLX5_VPORT_UPLINK) ?
  		  &mlx5e_uplink_rep_profile : &mlx5e_rep_profile;
  	netdev = mlx5e_create_netdev(dev, profile, nch, rpriv);
  	if (!netdev) {
  		pr_warn("Failed to create representor netdev for vport %d\n",
  			rep->vport);
  		kfree(rpriv);
  		return -EINVAL;
  	}
  
  	rpriv->netdev = netdev;
  	rep->rep_data[REP_ETH].priv = rpriv;
  	INIT_LIST_HEAD(&rpriv->vport_sqs_list);
  
  	if (rep->vport == MLX5_VPORT_UPLINK) {
  		err = mlx5e_create_mdev_resources(dev);
  		if (err)
  			goto err_destroy_netdev;
  	}
  
  	err = mlx5e_attach_netdev(netdev_priv(netdev));
  	if (err) {
  		pr_warn("Failed to attach representor netdev for vport %d\n",
  			rep->vport);
  		goto err_destroy_mdev_resources;
  	}
  
  	err = mlx5e_rep_neigh_init(rpriv);
  	if (err) {
  		pr_warn("Failed to initialized neighbours handling for vport %d\n",
  			rep->vport);
  		goto err_detach_netdev;
  	}
  
  	err = register_devlink_port(dev, rpriv);
  	if (err) {
  		esw_warn(dev, "Failed to register devlink port %d\n",
  			 rep->vport);
  		goto err_neigh_cleanup;
  	}
  
  	err = register_netdev(netdev);
  	if (err) {
  		pr_warn("Failed to register representor netdev for vport %d\n",
  			rep->vport);
  		goto err_devlink_cleanup;
  	}
  
  	if (is_devlink_port_supported(dev, rpriv))
  		devlink_port_type_eth_set(&rpriv->dl_port, netdev);
  	return 0;
  
  err_devlink_cleanup:
  	unregister_devlink_port(dev, rpriv);
  
  err_neigh_cleanup:
  	mlx5e_rep_neigh_cleanup(rpriv);
  
  err_detach_netdev:
  	mlx5e_detach_netdev(netdev_priv(netdev));
  
  err_destroy_mdev_resources:
  	if (rep->vport == MLX5_VPORT_UPLINK)
  		mlx5e_destroy_mdev_resources(dev);
  
  err_destroy_netdev:
  	mlx5e_destroy_netdev(netdev_priv(netdev));
  	kfree(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 = netdev_priv(netdev);
  	struct mlx5_core_dev *dev = priv->mdev;
  	void *ppriv = priv->ppriv;
  
  	if (is_devlink_port_supported(dev, rpriv))
  		devlink_port_type_clear(&rpriv->dl_port);
  	unregister_netdev(netdev);
  	unregister_devlink_port(dev, rpriv);
  	mlx5e_rep_neigh_cleanup(rpriv);
  	mlx5e_detach_netdev(priv);
  	if (rep->vport == MLX5_VPORT_UPLINK)
  		mlx5e_destroy_mdev_resources(priv->mdev);
  	mlx5e_destroy_netdev(priv);
  	kfree(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 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
  };
  
  void mlx5e_rep_register_vport_reps(struct mlx5_core_dev *mdev)
  {
  	struct mlx5_eswitch *esw = mdev->priv.eswitch;
  
  	mlx5_eswitch_register_vport_reps(esw, &rep_ops, REP_ETH);
  }
  
  void mlx5e_rep_unregister_vport_reps(struct mlx5_core_dev *mdev)
  {
  	struct mlx5_eswitch *esw = mdev->priv.eswitch;
  
  	mlx5_eswitch_unregister_vport_reps(esw, REP_ETH);
  }
  