/*
 * Copyright (c) 2015, 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/etherdevice.h>
#include <linux/mlx5/driver.h>
#include <linux/mlx5/mlx5_ifc.h>
#include <linux/mlx5/vport.h>
#include <linux/mlx5/fs.h>
#include "esw/acl/lgcy.h"
#include "mlx5_core.h"
#include "lib/eq.h"
#include "eswitch.h"
#include "fs_core.h"
#include "devlink.h"
#include "ecpf.h"
#include "en/mod_hdr.h"

enum {
	MLX5_ACTION_NONE = 0,
	MLX5_ACTION_ADD  = 1,
	MLX5_ACTION_DEL  = 2,
};

/* Vport UC/MC hash node */
struct vport_addr {
	struct l2addr_node     node;
	u8                     action;
	u16                    vport;
	struct mlx5_flow_handle *flow_rule;
	bool mpfs; /* UC MAC was added to MPFs */
	/* A flag indicating that mac was added due to mc promiscuous vport */
	bool mc_promisc;
};

static void esw_destroy_legacy_fdb_table(struct mlx5_eswitch *esw);
static void esw_cleanup_vepa_rules(struct mlx5_eswitch *esw);

static int mlx5_eswitch_check(const struct mlx5_core_dev *dev)
{
	if (MLX5_CAP_GEN(dev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
		return -EOPNOTSUPP;

	if (!MLX5_ESWITCH_MANAGER(dev))
		return -EOPNOTSUPP;

	return 0;
}

struct mlx5_eswitch *mlx5_devlink_eswitch_get(struct devlink *devlink)
{
	struct mlx5_core_dev *dev = devlink_priv(devlink);
	int err;

	err = mlx5_eswitch_check(dev);
	if (err)
		return ERR_PTR(err);

	return dev->priv.eswitch;
}

struct mlx5_vport *__must_check
mlx5_eswitch_get_vport(struct mlx5_eswitch *esw, u16 vport_num)
{
	u16 idx;

	if (!esw || !MLX5_CAP_GEN(esw->dev, vport_group_manager))
		return ERR_PTR(-EPERM);

	idx = mlx5_eswitch_vport_num_to_index(esw, vport_num);

	if (idx > esw->total_vports - 1) {
		esw_debug(esw->dev, "vport out of range: num(0x%x), idx(0x%x)\n",
			  vport_num, idx);
		return ERR_PTR(-EINVAL);
	}

	return &esw->vports[idx];
}

static int arm_vport_context_events_cmd(struct mlx5_core_dev *dev, u16 vport,
					u32 events_mask)
{
	u32 in[MLX5_ST_SZ_DW(modify_nic_vport_context_in)] = {};
	void *nic_vport_ctx;

	MLX5_SET(modify_nic_vport_context_in, in,
		 opcode, MLX5_CMD_OP_MODIFY_NIC_VPORT_CONTEXT);
	MLX5_SET(modify_nic_vport_context_in, in, field_select.change_event, 1);
	MLX5_SET(modify_nic_vport_context_in, in, vport_number, vport);
	MLX5_SET(modify_nic_vport_context_in, in, other_vport, 1);
	nic_vport_ctx = MLX5_ADDR_OF(modify_nic_vport_context_in,
				     in, nic_vport_context);

	MLX5_SET(nic_vport_context, nic_vport_ctx, arm_change_event, 1);

	if (events_mask & MLX5_VPORT_UC_ADDR_CHANGE)
		MLX5_SET(nic_vport_context, nic_vport_ctx,
			 event_on_uc_address_change, 1);
	if (events_mask & MLX5_VPORT_MC_ADDR_CHANGE)
		MLX5_SET(nic_vport_context, nic_vport_ctx,
			 event_on_mc_address_change, 1);
	if (events_mask & MLX5_VPORT_PROMISC_CHANGE)
		MLX5_SET(nic_vport_context, nic_vport_ctx,
			 event_on_promisc_change, 1);

	return mlx5_cmd_exec_in(dev, modify_nic_vport_context, in);
}

/* E-Switch vport context HW commands */
int mlx5_eswitch_modify_esw_vport_context(struct mlx5_core_dev *dev, u16 vport,
					  bool other_vport, void *in)
{
	MLX5_SET(modify_esw_vport_context_in, in, opcode,
		 MLX5_CMD_OP_MODIFY_ESW_VPORT_CONTEXT);
	MLX5_SET(modify_esw_vport_context_in, in, vport_number, vport);
	MLX5_SET(modify_esw_vport_context_in, in, other_vport, other_vport);
	return mlx5_cmd_exec_in(dev, modify_esw_vport_context, in);
}

static int modify_esw_vport_cvlan(struct mlx5_core_dev *dev, u16 vport,
				  u16 vlan, u8 qos, u8 set_flags)
{
	u32 in[MLX5_ST_SZ_DW(modify_esw_vport_context_in)] = {};

	if (!MLX5_CAP_ESW(dev, vport_cvlan_strip) ||
	    !MLX5_CAP_ESW(dev, vport_cvlan_insert_if_not_exist))
		return -EOPNOTSUPP;

	esw_debug(dev, "Set Vport[%d] VLAN %d qos %d set=%x\n",
		  vport, vlan, qos, set_flags);

	if (set_flags & SET_VLAN_STRIP)
		MLX5_SET(modify_esw_vport_context_in, in,
			 esw_vport_context.vport_cvlan_strip, 1);

	if (set_flags & SET_VLAN_INSERT) {
		/* insert only if no vlan in packet */
		MLX5_SET(modify_esw_vport_context_in, in,
			 esw_vport_context.vport_cvlan_insert, 1);

		MLX5_SET(modify_esw_vport_context_in, in,
			 esw_vport_context.cvlan_pcp, qos);
		MLX5_SET(modify_esw_vport_context_in, in,
			 esw_vport_context.cvlan_id, vlan);
	}

	MLX5_SET(modify_esw_vport_context_in, in,
		 field_select.vport_cvlan_strip, 1);
	MLX5_SET(modify_esw_vport_context_in, in,
		 field_select.vport_cvlan_insert, 1);

	return mlx5_eswitch_modify_esw_vport_context(dev, vport, true, in);
}

/* E-Switch FDB */
static struct mlx5_flow_handle *
__esw_fdb_set_vport_rule(struct mlx5_eswitch *esw, u16 vport, bool rx_rule,
			 u8 mac_c[ETH_ALEN], u8 mac_v[ETH_ALEN])
{
	int match_header = (is_zero_ether_addr(mac_c) ? 0 :
			    MLX5_MATCH_OUTER_HEADERS);
	struct mlx5_flow_handle *flow_rule = NULL;
	struct mlx5_flow_act flow_act = {0};
	struct mlx5_flow_destination dest = {};
	struct mlx5_flow_spec *spec;
	void *mv_misc = NULL;
	void *mc_misc = NULL;
	u8 *dmac_v = NULL;
	u8 *dmac_c = NULL;

	if (rx_rule)
		match_header |= MLX5_MATCH_MISC_PARAMETERS;

	spec = kvzalloc(sizeof(*spec), GFP_KERNEL);
	if (!spec)
		return NULL;

	dmac_v = MLX5_ADDR_OF(fte_match_param, spec->match_value,
			      outer_headers.dmac_47_16);
	dmac_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
			      outer_headers.dmac_47_16);

	if (match_header & MLX5_MATCH_OUTER_HEADERS) {
		ether_addr_copy(dmac_v, mac_v);
		ether_addr_copy(dmac_c, mac_c);
	}

	if (match_header & MLX5_MATCH_MISC_PARAMETERS) {
		mv_misc  = MLX5_ADDR_OF(fte_match_param, spec->match_value,
					misc_parameters);
		mc_misc  = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
					misc_parameters);
		MLX5_SET(fte_match_set_misc, mv_misc, source_port, MLX5_VPORT_UPLINK);
		MLX5_SET_TO_ONES(fte_match_set_misc, mc_misc, source_port);
	}

	dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT;
	dest.vport.num = vport;

	esw_debug(esw->dev,
		  "\tFDB add rule dmac_v(%pM) dmac_c(%pM) -> vport(%d)\n",
		  dmac_v, dmac_c, vport);
	spec->match_criteria_enable = match_header;
	flow_act.action =  MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
	flow_rule =
		mlx5_add_flow_rules(esw->fdb_table.legacy.fdb, spec,
				    &flow_act, &dest, 1);
	if (IS_ERR(flow_rule)) {
		esw_warn(esw->dev,
			 "FDB: Failed to add flow rule: dmac_v(%pM) dmac_c(%pM) -> vport(%d), err(%ld)\n",
			 dmac_v, dmac_c, vport, PTR_ERR(flow_rule));
		flow_rule = NULL;
	}

	kvfree(spec);
	return flow_rule;
}

static struct mlx5_flow_handle *
esw_fdb_set_vport_rule(struct mlx5_eswitch *esw, u8 mac[ETH_ALEN], u16 vport)
{
	u8 mac_c[ETH_ALEN];

	eth_broadcast_addr(mac_c);
	return __esw_fdb_set_vport_rule(esw, vport, false, mac_c, mac);
}

static struct mlx5_flow_handle *
esw_fdb_set_vport_allmulti_rule(struct mlx5_eswitch *esw, u16 vport)
{
	u8 mac_c[ETH_ALEN];
	u8 mac_v[ETH_ALEN];

	eth_zero_addr(mac_c);
	eth_zero_addr(mac_v);
	mac_c[0] = 0x01;
	mac_v[0] = 0x01;
	return __esw_fdb_set_vport_rule(esw, vport, false, mac_c, mac_v);
}

static struct mlx5_flow_handle *
esw_fdb_set_vport_promisc_rule(struct mlx5_eswitch *esw, u16 vport)
{
	u8 mac_c[ETH_ALEN];
	u8 mac_v[ETH_ALEN];

	eth_zero_addr(mac_c);
	eth_zero_addr(mac_v);
	return __esw_fdb_set_vport_rule(esw, vport, true, mac_c, mac_v);
}

enum {
	LEGACY_VEPA_PRIO = 0,
	LEGACY_FDB_PRIO,
};

static int esw_create_legacy_vepa_table(struct mlx5_eswitch *esw)
{
	struct mlx5_flow_table_attr ft_attr = {};
	struct mlx5_core_dev *dev = esw->dev;
	struct mlx5_flow_namespace *root_ns;
	struct mlx5_flow_table *fdb;
	int err;

	root_ns = mlx5_get_fdb_sub_ns(dev, 0);
	if (!root_ns) {
		esw_warn(dev, "Failed to get FDB flow namespace\n");
		return -EOPNOTSUPP;
	}

	/* num FTE 2, num FG 2 */
	ft_attr.prio = LEGACY_VEPA_PRIO;
	ft_attr.max_fte = 2;
	ft_attr.autogroup.max_num_groups = 2;
	fdb = mlx5_create_auto_grouped_flow_table(root_ns, &ft_attr);
	if (IS_ERR(fdb)) {
		err = PTR_ERR(fdb);
		esw_warn(dev, "Failed to create VEPA FDB err %d\n", err);
		return err;
	}
	esw->fdb_table.legacy.vepa_fdb = fdb;

	return 0;
}

static int esw_create_legacy_fdb_table(struct mlx5_eswitch *esw)
{
	int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
	struct mlx5_flow_table_attr ft_attr = {};
	struct mlx5_core_dev *dev = esw->dev;
	struct mlx5_flow_namespace *root_ns;
	struct mlx5_flow_table *fdb;
	struct mlx5_flow_group *g;
	void *match_criteria;
	int table_size;
	u32 *flow_group_in;
	u8 *dmac;
	int err = 0;

	esw_debug(dev, "Create FDB log_max_size(%d)\n",
		  MLX5_CAP_ESW_FLOWTABLE_FDB(dev, log_max_ft_size));

	root_ns = mlx5_get_fdb_sub_ns(dev, 0);
	if (!root_ns) {
		esw_warn(dev, "Failed to get FDB flow namespace\n");
		return -EOPNOTSUPP;
	}

	flow_group_in = kvzalloc(inlen, GFP_KERNEL);
	if (!flow_group_in)
		return -ENOMEM;

	table_size = BIT(MLX5_CAP_ESW_FLOWTABLE_FDB(dev, log_max_ft_size));
	ft_attr.max_fte = table_size;
	ft_attr.prio = LEGACY_FDB_PRIO;
	fdb = mlx5_create_flow_table(root_ns, &ft_attr);
	if (IS_ERR(fdb)) {
		err = PTR_ERR(fdb);
		esw_warn(dev, "Failed to create FDB Table err %d\n", err);
		goto out;
	}
	esw->fdb_table.legacy.fdb = fdb;

	/* Addresses group : Full match unicast/multicast addresses */
	MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable,
		 MLX5_MATCH_OUTER_HEADERS);
	match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in, match_criteria);
	dmac = MLX5_ADDR_OF(fte_match_param, match_criteria, outer_headers.dmac_47_16);
	MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0);
	/* Preserve 2 entries for allmulti and promisc rules*/
	MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, table_size - 3);
	eth_broadcast_addr(dmac);
	g = mlx5_create_flow_group(fdb, flow_group_in);
	if (IS_ERR(g)) {
		err = PTR_ERR(g);
		esw_warn(dev, "Failed to create flow group err(%d)\n", err);
		goto out;
	}
	esw->fdb_table.legacy.addr_grp = g;

	/* Allmulti group : One rule that forwards any mcast traffic */
	MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable,
		 MLX5_MATCH_OUTER_HEADERS);
	MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, table_size - 2);
	MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, table_size - 2);
	eth_zero_addr(dmac);
	dmac[0] = 0x01;
	g = mlx5_create_flow_group(fdb, flow_group_in);
	if (IS_ERR(g)) {
		err = PTR_ERR(g);
		esw_warn(dev, "Failed to create allmulti flow group err(%d)\n", err);
		goto out;
	}
	esw->fdb_table.legacy.allmulti_grp = g;

	/* Promiscuous group :
	 * One rule that forward all unmatched traffic from previous groups
	 */
	eth_zero_addr(dmac);
	MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable,
		 MLX5_MATCH_MISC_PARAMETERS);
	MLX5_SET_TO_ONES(fte_match_param, match_criteria, misc_parameters.source_port);
	MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, table_size - 1);
	MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, table_size - 1);
	g = mlx5_create_flow_group(fdb, flow_group_in);
	if (IS_ERR(g)) {
		err = PTR_ERR(g);
		esw_warn(dev, "Failed to create promisc flow group err(%d)\n", err);
		goto out;
	}
	esw->fdb_table.legacy.promisc_grp = g;

out:
	if (err)
		esw_destroy_legacy_fdb_table(esw);

	kvfree(flow_group_in);
	return err;
}

static void esw_destroy_legacy_vepa_table(struct mlx5_eswitch *esw)
{
	esw_debug(esw->dev, "Destroy VEPA Table\n");
	if (!esw->fdb_table.legacy.vepa_fdb)
		return;

	mlx5_destroy_flow_table(esw->fdb_table.legacy.vepa_fdb);
	esw->fdb_table.legacy.vepa_fdb = NULL;
}

static void esw_destroy_legacy_fdb_table(struct mlx5_eswitch *esw)
{
	esw_debug(esw->dev, "Destroy FDB Table\n");
	if (!esw->fdb_table.legacy.fdb)
		return;

	if (esw->fdb_table.legacy.promisc_grp)
		mlx5_destroy_flow_group(esw->fdb_table.legacy.promisc_grp);
	if (esw->fdb_table.legacy.allmulti_grp)
		mlx5_destroy_flow_group(esw->fdb_table.legacy.allmulti_grp);
	if (esw->fdb_table.legacy.addr_grp)
		mlx5_destroy_flow_group(esw->fdb_table.legacy.addr_grp);
	mlx5_destroy_flow_table(esw->fdb_table.legacy.fdb);

	esw->fdb_table.legacy.fdb = NULL;
	esw->fdb_table.legacy.addr_grp = NULL;
	esw->fdb_table.legacy.allmulti_grp = NULL;
	esw->fdb_table.legacy.promisc_grp = NULL;
}

static int esw_create_legacy_table(struct mlx5_eswitch *esw)
{
	int err;

	memset(&esw->fdb_table.legacy, 0, sizeof(struct legacy_fdb));

	err = esw_create_legacy_vepa_table(esw);
	if (err)
		return err;

	err = esw_create_legacy_fdb_table(esw);
	if (err)
		esw_destroy_legacy_vepa_table(esw);

	return err;
}

static void esw_destroy_legacy_table(struct mlx5_eswitch *esw)
{
	esw_cleanup_vepa_rules(esw);
	esw_destroy_legacy_fdb_table(esw);
	esw_destroy_legacy_vepa_table(esw);
}

#define MLX5_LEGACY_SRIOV_VPORT_EVENTS (MLX5_VPORT_UC_ADDR_CHANGE | \
					MLX5_VPORT_MC_ADDR_CHANGE | \
					MLX5_VPORT_PROMISC_CHANGE)

static int esw_legacy_enable(struct mlx5_eswitch *esw)
{
	struct mlx5_vport *vport;
	int ret, i;

	ret = esw_create_legacy_table(esw);
	if (ret)
		return ret;

	mlx5_esw_for_each_vf_vport(esw, i, vport, esw->esw_funcs.num_vfs)
		vport->info.link_state = MLX5_VPORT_ADMIN_STATE_AUTO;

	ret = mlx5_eswitch_enable_pf_vf_vports(esw, MLX5_LEGACY_SRIOV_VPORT_EVENTS);
	if (ret)
		esw_destroy_legacy_table(esw);
	return ret;
}

static void esw_legacy_disable(struct mlx5_eswitch *esw)
{
	struct esw_mc_addr *mc_promisc;

	mlx5_eswitch_disable_pf_vf_vports(esw);

	mc_promisc = &esw->mc_promisc;
	if (mc_promisc->uplink_rule)
		mlx5_del_flow_rules(mc_promisc->uplink_rule);

	esw_destroy_legacy_table(esw);
}

/* E-Switch vport UC/MC lists management */
typedef int (*vport_addr_action)(struct mlx5_eswitch *esw,
				 struct vport_addr *vaddr);

static int esw_add_uc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
{
	u8 *mac = vaddr->node.addr;
	u16 vport = vaddr->vport;
	int err;

	/* Skip mlx5_mpfs_add_mac for eswitch_managers,
	 * it is already done by its netdev in mlx5e_execute_l2_action
	 */
	if (mlx5_esw_is_manager_vport(esw, vport))
		goto fdb_add;

	err = mlx5_mpfs_add_mac(esw->dev, mac);
	if (err) {
		esw_warn(esw->dev,
			 "Failed to add L2 table mac(%pM) for vport(0x%x), err(%d)\n",
			 mac, vport, err);
		return err;
	}
	vaddr->mpfs = true;

fdb_add:
	/* SRIOV is enabled: Forward UC MAC to vport */
	if (esw->fdb_table.legacy.fdb && esw->mode == MLX5_ESWITCH_LEGACY)
		vaddr->flow_rule = esw_fdb_set_vport_rule(esw, mac, vport);

	esw_debug(esw->dev, "\tADDED UC MAC: vport[%d] %pM fr(%p)\n",
		  vport, mac, vaddr->flow_rule);

	return 0;
}

static int esw_del_uc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
{
	u8 *mac = vaddr->node.addr;
	u16 vport = vaddr->vport;
	int err = 0;

	/* Skip mlx5_mpfs_del_mac for eswitch managers,
	 * it is already done by its netdev in mlx5e_execute_l2_action
	 */
	if (!vaddr->mpfs || mlx5_esw_is_manager_vport(esw, vport))
		goto fdb_del;

	err = mlx5_mpfs_del_mac(esw->dev, mac);
	if (err)
		esw_warn(esw->dev,
			 "Failed to del L2 table mac(%pM) for vport(%d), err(%d)\n",
			 mac, vport, err);
	vaddr->mpfs = false;

fdb_del:
	if (vaddr->flow_rule)
		mlx5_del_flow_rules(vaddr->flow_rule);
	vaddr->flow_rule = NULL;

	return 0;
}

static void update_allmulti_vports(struct mlx5_eswitch *esw,
				   struct vport_addr *vaddr,
				   struct esw_mc_addr *esw_mc)
{
	u8 *mac = vaddr->node.addr;
	struct mlx5_vport *vport;
	u16 i, vport_num;

	mlx5_esw_for_all_vports(esw, i, vport) {
		struct hlist_head *vport_hash = vport->mc_list;
		struct vport_addr *iter_vaddr =
					l2addr_hash_find(vport_hash,
							 mac,
							 struct vport_addr);
		vport_num = vport->vport;
		if (IS_ERR_OR_NULL(vport->allmulti_rule) ||
		    vaddr->vport == vport_num)
			continue;
		switch (vaddr->action) {
		case MLX5_ACTION_ADD:
			if (iter_vaddr)
				continue;
			iter_vaddr = l2addr_hash_add(vport_hash, mac,
						     struct vport_addr,
						     GFP_KERNEL);
			if (!iter_vaddr) {
				esw_warn(esw->dev,
					 "ALL-MULTI: Failed to add MAC(%pM) to vport[%d] DB\n",
					 mac, vport_num);
				continue;
			}
			iter_vaddr->vport = vport_num;
			iter_vaddr->flow_rule =
					esw_fdb_set_vport_rule(esw,
							       mac,
							       vport_num);
			iter_vaddr->mc_promisc = true;
			break;
		case MLX5_ACTION_DEL:
			if (!iter_vaddr)
				continue;
			mlx5_del_flow_rules(iter_vaddr->flow_rule);
			l2addr_hash_del(iter_vaddr);
			break;
		}
	}
}

static int esw_add_mc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
{
	struct hlist_head *hash = esw->mc_table;
	struct esw_mc_addr *esw_mc;
	u8 *mac = vaddr->node.addr;
	u16 vport = vaddr->vport;

	if (!esw->fdb_table.legacy.fdb)
		return 0;

	esw_mc = l2addr_hash_find(hash, mac, struct esw_mc_addr);
	if (esw_mc)
		goto add;

	esw_mc = l2addr_hash_add(hash, mac, struct esw_mc_addr, GFP_KERNEL);
	if (!esw_mc)
		return -ENOMEM;

	esw_mc->uplink_rule = /* Forward MC MAC to Uplink */
		esw_fdb_set_vport_rule(esw, mac, MLX5_VPORT_UPLINK);

	/* Add this multicast mac to all the mc promiscuous vports */
	update_allmulti_vports(esw, vaddr, esw_mc);

add:
	/* If the multicast mac is added as a result of mc promiscuous vport,
	 * don't increment the multicast ref count
	 */
	if (!vaddr->mc_promisc)
		esw_mc->refcnt++;

	/* Forward MC MAC to vport */
	vaddr->flow_rule = esw_fdb_set_vport_rule(esw, mac, vport);
	esw_debug(esw->dev,
		  "\tADDED MC MAC: vport[%d] %pM fr(%p) refcnt(%d) uplinkfr(%p)\n",
		  vport, mac, vaddr->flow_rule,
		  esw_mc->refcnt, esw_mc->uplink_rule);
	return 0;
}

static int esw_del_mc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
{
	struct hlist_head *hash = esw->mc_table;
	struct esw_mc_addr *esw_mc;
	u8 *mac = vaddr->node.addr;
	u16 vport = vaddr->vport;

	if (!esw->fdb_table.legacy.fdb)
		return 0;

	esw_mc = l2addr_hash_find(hash, mac, struct esw_mc_addr);
	if (!esw_mc) {
		esw_warn(esw->dev,
			 "Failed to find eswitch MC addr for MAC(%pM) vport(%d)",
			 mac, vport);
		return -EINVAL;
	}
	esw_debug(esw->dev,
		  "\tDELETE MC MAC: vport[%d] %pM fr(%p) refcnt(%d) uplinkfr(%p)\n",
		  vport, mac, vaddr->flow_rule, esw_mc->refcnt,
		  esw_mc->uplink_rule);

	if (vaddr->flow_rule)
		mlx5_del_flow_rules(vaddr->flow_rule);
	vaddr->flow_rule = NULL;

	/* If the multicast mac is added as a result of mc promiscuous vport,
	 * don't decrement the multicast ref count.
	 */
	if (vaddr->mc_promisc || (--esw_mc->refcnt > 0))
		return 0;

	/* Remove this multicast mac from all the mc promiscuous vports */
	update_allmulti_vports(esw, vaddr, esw_mc);

	if (esw_mc->uplink_rule)
		mlx5_del_flow_rules(esw_mc->uplink_rule);

	l2addr_hash_del(esw_mc);
	return 0;
}

/* Apply vport UC/MC list to HW l2 table and FDB table */
static void esw_apply_vport_addr_list(struct mlx5_eswitch *esw,
				      struct mlx5_vport *vport, int list_type)
{
	bool is_uc = list_type == MLX5_NVPRT_LIST_TYPE_UC;
	vport_addr_action vport_addr_add;
	vport_addr_action vport_addr_del;
	struct vport_addr *addr;
	struct l2addr_node *node;
	struct hlist_head *hash;
	struct hlist_node *tmp;
	int hi;

	vport_addr_add = is_uc ? esw_add_uc_addr :
				 esw_add_mc_addr;
	vport_addr_del = is_uc ? esw_del_uc_addr :
				 esw_del_mc_addr;

	hash = is_uc ? vport->uc_list : vport->mc_list;
	for_each_l2hash_node(node, tmp, hash, hi) {
		addr = container_of(node, struct vport_addr, node);
		switch (addr->action) {
		case MLX5_ACTION_ADD:
			vport_addr_add(esw, addr);
			addr->action = MLX5_ACTION_NONE;
			break;
		case MLX5_ACTION_DEL:
			vport_addr_del(esw, addr);
			l2addr_hash_del(addr);
			break;
		}
	}
}

/* Sync vport UC/MC list from vport context */
static void esw_update_vport_addr_list(struct mlx5_eswitch *esw,
				       struct mlx5_vport *vport, int list_type)
{
	bool is_uc = list_type == MLX5_NVPRT_LIST_TYPE_UC;
	u8 (*mac_list)[ETH_ALEN];
	struct l2addr_node *node;
	struct vport_addr *addr;
	struct hlist_head *hash;
	struct hlist_node *tmp;
	int size;
	int err;
	int hi;
	int i;

	size = is_uc ? MLX5_MAX_UC_PER_VPORT(esw->dev) :
		       MLX5_MAX_MC_PER_VPORT(esw->dev);

	mac_list = kcalloc(size, ETH_ALEN, GFP_KERNEL);
	if (!mac_list)
		return;

	hash = is_uc ? vport->uc_list : vport->mc_list;

	for_each_l2hash_node(node, tmp, hash, hi) {
		addr = container_of(node, struct vport_addr, node);
		addr->action = MLX5_ACTION_DEL;
	}

	if (!vport->enabled)
		goto out;

	err = mlx5_query_nic_vport_mac_list(esw->dev, vport->vport, list_type,
					    mac_list, &size);
	if (err)
		goto out;
	esw_debug(esw->dev, "vport[%d] context update %s list size (%d)\n",
		  vport->vport, is_uc ? "UC" : "MC", size);

	for (i = 0; i < size; i++) {
		if (is_uc && !is_valid_ether_addr(mac_list[i]))
			continue;

		if (!is_uc && !is_multicast_ether_addr(mac_list[i]))
			continue;

		addr = l2addr_hash_find(hash, mac_list[i], struct vport_addr);
		if (addr) {
			addr->action = MLX5_ACTION_NONE;
			/* If this mac was previously added because of allmulti
			 * promiscuous rx mode, its now converted to be original
			 * vport mac.
			 */
			if (addr->mc_promisc) {
				struct esw_mc_addr *esw_mc =
					l2addr_hash_find(esw->mc_table,
							 mac_list[i],
							 struct esw_mc_addr);
				if (!esw_mc) {
					esw_warn(esw->dev,
						 "Failed to MAC(%pM) in mcast DB\n",
						 mac_list[i]);
					continue;
				}
				esw_mc->refcnt++;
				addr->mc_promisc = false;
			}
			continue;
		}

		addr = l2addr_hash_add(hash, mac_list[i], struct vport_addr,
				       GFP_KERNEL);
		if (!addr) {
			esw_warn(esw->dev,
				 "Failed to add MAC(%pM) to vport[%d] DB\n",
				 mac_list[i], vport->vport);
			continue;
		}
		addr->vport = vport->vport;
		addr->action = MLX5_ACTION_ADD;
	}
out:
	kfree(mac_list);
}

/* Sync vport UC/MC list from vport context
 * Must be called after esw_update_vport_addr_list
 */
static void esw_update_vport_mc_promisc(struct mlx5_eswitch *esw,
					struct mlx5_vport *vport)
{
	struct l2addr_node *node;
	struct vport_addr *addr;
	struct hlist_head *hash;
	struct hlist_node *tmp;
	int hi;

	hash = vport->mc_list;

	for_each_l2hash_node(node, tmp, esw->mc_table, hi) {
		u8 *mac = node->addr;

		addr = l2addr_hash_find(hash, mac, struct vport_addr);
		if (addr) {
			if (addr->action == MLX5_ACTION_DEL)
				addr->action = MLX5_ACTION_NONE;
			continue;
		}
		addr = l2addr_hash_add(hash, mac, struct vport_addr,
				       GFP_KERNEL);
		if (!addr) {
			esw_warn(esw->dev,
				 "Failed to add allmulti MAC(%pM) to vport[%d] DB\n",
				 mac, vport->vport);
			continue;
		}
		addr->vport = vport->vport;
		addr->action = MLX5_ACTION_ADD;
		addr->mc_promisc = true;
	}
}

/* Apply vport rx mode to HW FDB table */
static void esw_apply_vport_rx_mode(struct mlx5_eswitch *esw,
				    struct mlx5_vport *vport,
				    bool promisc, bool mc_promisc)
{
	struct esw_mc_addr *allmulti_addr = &esw->mc_promisc;

	if (IS_ERR_OR_NULL(vport->allmulti_rule) != mc_promisc)
		goto promisc;

	if (mc_promisc) {
		vport->allmulti_rule =
			esw_fdb_set_vport_allmulti_rule(esw, vport->vport);
		if (!allmulti_addr->uplink_rule)
			allmulti_addr->uplink_rule =
				esw_fdb_set_vport_allmulti_rule(esw,
								MLX5_VPORT_UPLINK);
		allmulti_addr->refcnt++;
	} else if (vport->allmulti_rule) {
		mlx5_del_flow_rules(vport->allmulti_rule);
		vport->allmulti_rule = NULL;

		if (--allmulti_addr->refcnt > 0)
			goto promisc;

		if (allmulti_addr->uplink_rule)
			mlx5_del_flow_rules(allmulti_addr->uplink_rule);
		allmulti_addr->uplink_rule = NULL;
	}

promisc:
	if (IS_ERR_OR_NULL(vport->promisc_rule) != promisc)
		return;

	if (promisc) {
		vport->promisc_rule =
			esw_fdb_set_vport_promisc_rule(esw, vport->vport);
	} else if (vport->promisc_rule) {
		mlx5_del_flow_rules(vport->promisc_rule);
		vport->promisc_rule = NULL;
	}
}

/* Sync vport rx mode from vport context */
static void esw_update_vport_rx_mode(struct mlx5_eswitch *esw,
				     struct mlx5_vport *vport)
{
	int promisc_all = 0;
	int promisc_uc = 0;
	int promisc_mc = 0;
	int err;

	err = mlx5_query_nic_vport_promisc(esw->dev,
					   vport->vport,
					   &promisc_uc,
					   &promisc_mc,
					   &promisc_all);
	if (err)
		return;
	esw_debug(esw->dev, "vport[%d] context update rx mode promisc_all=%d, all_multi=%d\n",
		  vport->vport, promisc_all, promisc_mc);

	if (!vport->info.trusted || !vport->enabled) {
		promisc_uc = 0;
		promisc_mc = 0;
		promisc_all = 0;
	}

	esw_apply_vport_rx_mode(esw, vport, promisc_all,
				(promisc_all || promisc_mc));
}

static void esw_vport_change_handle_locked(struct mlx5_vport *vport)
{
	struct mlx5_core_dev *dev = vport->dev;
	struct mlx5_eswitch *esw = dev->priv.eswitch;
	u8 mac[ETH_ALEN];

	mlx5_query_nic_vport_mac_address(dev, vport->vport, true, mac);
	esw_debug(dev, "vport[%d] Context Changed: perm mac: %pM\n",
		  vport->vport, mac);

	if (vport->enabled_events & MLX5_VPORT_UC_ADDR_CHANGE) {
		esw_update_vport_addr_list(esw, vport, MLX5_NVPRT_LIST_TYPE_UC);
		esw_apply_vport_addr_list(esw, vport, MLX5_NVPRT_LIST_TYPE_UC);
	}

	if (vport->enabled_events & MLX5_VPORT_MC_ADDR_CHANGE)
		esw_update_vport_addr_list(esw, vport, MLX5_NVPRT_LIST_TYPE_MC);

	if (vport->enabled_events & MLX5_VPORT_PROMISC_CHANGE) {
		esw_update_vport_rx_mode(esw, vport);
		if (!IS_ERR_OR_NULL(vport->allmulti_rule))
			esw_update_vport_mc_promisc(esw, vport);
	}

	if (vport->enabled_events & (MLX5_VPORT_PROMISC_CHANGE | MLX5_VPORT_MC_ADDR_CHANGE))
		esw_apply_vport_addr_list(esw, vport, MLX5_NVPRT_LIST_TYPE_MC);

	esw_debug(esw->dev, "vport[%d] Context Changed: Done\n", vport->vport);
	if (vport->enabled)
		arm_vport_context_events_cmd(dev, vport->vport,
					     vport->enabled_events);
}

static void esw_vport_change_handler(struct work_struct *work)
{
	struct mlx5_vport *vport =
		container_of(work, struct mlx5_vport, vport_change_handler);
	struct mlx5_eswitch *esw = vport->dev->priv.eswitch;

	mutex_lock(&esw->state_lock);
	esw_vport_change_handle_locked(vport);
	mutex_unlock(&esw->state_lock);
}

static bool element_type_supported(struct mlx5_eswitch *esw, int type)
{
	const struct mlx5_core_dev *dev = esw->dev;

	switch (type) {
	case SCHEDULING_CONTEXT_ELEMENT_TYPE_TSAR:
		return MLX5_CAP_QOS(dev, esw_element_type) &
		       ELEMENT_TYPE_CAP_MASK_TASR;
	case SCHEDULING_CONTEXT_ELEMENT_TYPE_VPORT:
		return MLX5_CAP_QOS(dev, esw_element_type) &
		       ELEMENT_TYPE_CAP_MASK_VPORT;
	case SCHEDULING_CONTEXT_ELEMENT_TYPE_VPORT_TC:
		return MLX5_CAP_QOS(dev, esw_element_type) &
		       ELEMENT_TYPE_CAP_MASK_VPORT_TC;
	case SCHEDULING_CONTEXT_ELEMENT_TYPE_PARA_VPORT_TC:
		return MLX5_CAP_QOS(dev, esw_element_type) &
		       ELEMENT_TYPE_CAP_MASK_PARA_VPORT_TC;
	}
	return false;
}

/* Vport QoS management */
static void esw_create_tsar(struct mlx5_eswitch *esw)
{
	u32 tsar_ctx[MLX5_ST_SZ_DW(scheduling_context)] = {0};
	struct mlx5_core_dev *dev = esw->dev;
	__be32 *attr;
	int err;

	if (!MLX5_CAP_GEN(dev, qos) || !MLX5_CAP_QOS(dev, esw_scheduling))
		return;

	if (!element_type_supported(esw, SCHEDULING_CONTEXT_ELEMENT_TYPE_TSAR))
		return;

	if (esw->qos.enabled)
		return;

	MLX5_SET(scheduling_context, tsar_ctx, element_type,
		 SCHEDULING_CONTEXT_ELEMENT_TYPE_TSAR);

	attr = MLX5_ADDR_OF(scheduling_context, tsar_ctx, element_attributes);
	*attr = cpu_to_be32(TSAR_ELEMENT_TSAR_TYPE_DWRR << 16);

	err = mlx5_create_scheduling_element_cmd(dev,
						 SCHEDULING_HIERARCHY_E_SWITCH,
						 tsar_ctx,
						 &esw->qos.root_tsar_id);
	if (err) {
		esw_warn(esw->dev, "E-Switch create TSAR failed (%d)\n", err);
		return;
	}

	esw->qos.enabled = true;
}

static void esw_destroy_tsar(struct mlx5_eswitch *esw)
{
	int err;

	if (!esw->qos.enabled)
		return;

	err = mlx5_destroy_scheduling_element_cmd(esw->dev,
						  SCHEDULING_HIERARCHY_E_SWITCH,
						  esw->qos.root_tsar_id);
	if (err)
		esw_warn(esw->dev, "E-Switch destroy TSAR failed (%d)\n", err);

	esw->qos.enabled = false;
}

static int esw_vport_enable_qos(struct mlx5_eswitch *esw,
				struct mlx5_vport *vport,
				u32 initial_max_rate, u32 initial_bw_share)
{
	u32 sched_ctx[MLX5_ST_SZ_DW(scheduling_context)] = {0};
	struct mlx5_core_dev *dev = esw->dev;
	void *vport_elem;
	int err = 0;

	if (!esw->qos.enabled || !MLX5_CAP_GEN(dev, qos) ||
	    !MLX5_CAP_QOS(dev, esw_scheduling))
		return 0;

	if (vport->qos.enabled)
		return -EEXIST;

	MLX5_SET(scheduling_context, sched_ctx, element_type,
		 SCHEDULING_CONTEXT_ELEMENT_TYPE_VPORT);
	vport_elem = MLX5_ADDR_OF(scheduling_context, sched_ctx,
				  element_attributes);
	MLX5_SET(vport_element, vport_elem, vport_number, vport->vport);
	MLX5_SET(scheduling_context, sched_ctx, parent_element_id,
		 esw->qos.root_tsar_id);
	MLX5_SET(scheduling_context, sched_ctx, max_average_bw,
		 initial_max_rate);
	MLX5_SET(scheduling_context, sched_ctx, bw_share, initial_bw_share);

	err = mlx5_create_scheduling_element_cmd(dev,
						 SCHEDULING_HIERARCHY_E_SWITCH,
						 sched_ctx,
						 &vport->qos.esw_tsar_ix);
	if (err) {
		esw_warn(esw->dev, "E-Switch create TSAR vport element failed (vport=%d,err=%d)\n",
			 vport->vport, err);
		return err;
	}

	vport->qos.enabled = true;
	return 0;
}

static void esw_vport_disable_qos(struct mlx5_eswitch *esw,
				  struct mlx5_vport *vport)
{
	int err;

	if (!vport->qos.enabled)
		return;

	err = mlx5_destroy_scheduling_element_cmd(esw->dev,
						  SCHEDULING_HIERARCHY_E_SWITCH,
						  vport->qos.esw_tsar_ix);
	if (err)
		esw_warn(esw->dev, "E-Switch destroy TSAR vport element failed (vport=%d,err=%d)\n",
			 vport->vport, err);

	vport->qos.enabled = false;
}

static int esw_vport_qos_config(struct mlx5_eswitch *esw,
				struct mlx5_vport *vport,
				u32 max_rate, u32 bw_share)
{
	u32 sched_ctx[MLX5_ST_SZ_DW(scheduling_context)] = {0};
	struct mlx5_core_dev *dev = esw->dev;
	void *vport_elem;
	u32 bitmask = 0;
	int err = 0;

	if (!MLX5_CAP_GEN(dev, qos) || !MLX5_CAP_QOS(dev, esw_scheduling))
		return -EOPNOTSUPP;

	if (!vport->qos.enabled)
		return -EIO;

	MLX5_SET(scheduling_context, sched_ctx, element_type,
		 SCHEDULING_CONTEXT_ELEMENT_TYPE_VPORT);
	vport_elem = MLX5_ADDR_OF(scheduling_context, sched_ctx,
				  element_attributes);
	MLX5_SET(vport_element, vport_elem, vport_number, vport->vport);
	MLX5_SET(scheduling_context, sched_ctx, parent_element_id,
		 esw->qos.root_tsar_id);
	MLX5_SET(scheduling_context, sched_ctx, max_average_bw,
		 max_rate);
	MLX5_SET(scheduling_context, sched_ctx, bw_share, bw_share);
	bitmask |= MODIFY_SCHEDULING_ELEMENT_IN_MODIFY_BITMASK_MAX_AVERAGE_BW;
	bitmask |= MODIFY_SCHEDULING_ELEMENT_IN_MODIFY_BITMASK_BW_SHARE;

	err = mlx5_modify_scheduling_element_cmd(dev,
						 SCHEDULING_HIERARCHY_E_SWITCH,
						 sched_ctx,
						 vport->qos.esw_tsar_ix,
						 bitmask);
	if (err) {
		esw_warn(esw->dev, "E-Switch modify TSAR vport element failed (vport=%d,err=%d)\n",
			 vport->vport, err);
		return err;
	}

	return 0;
}

int mlx5_esw_modify_vport_rate(struct mlx5_eswitch *esw, u16 vport_num,
			       u32 rate_mbps)
{
	u32 ctx[MLX5_ST_SZ_DW(scheduling_context)] = {};
	struct mlx5_vport *vport;

	vport = mlx5_eswitch_get_vport(esw, vport_num);
	MLX5_SET(scheduling_context, ctx, max_average_bw, rate_mbps);

	return mlx5_modify_scheduling_element_cmd(esw->dev,
						  SCHEDULING_HIERARCHY_E_SWITCH,
						  ctx,
						  vport->qos.esw_tsar_ix,
						  MODIFY_SCHEDULING_ELEMENT_IN_MODIFY_BITMASK_MAX_AVERAGE_BW);
}

static void node_guid_gen_from_mac(u64 *node_guid, const u8 *mac)
{
	((u8 *)node_guid)[7] = mac[0];
	((u8 *)node_guid)[6] = mac[1];
	((u8 *)node_guid)[5] = mac[2];
	((u8 *)node_guid)[4] = 0xff;
	((u8 *)node_guid)[3] = 0xfe;
	((u8 *)node_guid)[2] = mac[3];
	((u8 *)node_guid)[1] = mac[4];
	((u8 *)node_guid)[0] = mac[5];
}

static int esw_vport_create_legacy_acl_tables(struct mlx5_eswitch *esw,
					      struct mlx5_vport *vport)
{
	int ret;

	/* Only non manager vports need ACL in legacy mode */
	if (mlx5_esw_is_manager_vport(esw, vport->vport))
		return 0;

	ret = esw_acl_ingress_lgcy_setup(esw, vport);
	if (ret)
		goto ingress_err;

	ret = esw_acl_egress_lgcy_setup(esw, vport);
	if (ret)
		goto egress_err;

	return 0;

egress_err:
	esw_acl_ingress_lgcy_cleanup(esw, vport);
ingress_err:
	return ret;
}

static int esw_vport_setup_acl(struct mlx5_eswitch *esw,
			       struct mlx5_vport *vport)
{
	if (esw->mode == MLX5_ESWITCH_LEGACY)
		return esw_vport_create_legacy_acl_tables(esw, vport);
	else
		return esw_vport_create_offloads_acl_tables(esw, vport);
}

static void esw_vport_destroy_legacy_acl_tables(struct mlx5_eswitch *esw,
						struct mlx5_vport *vport)

{
	if (mlx5_esw_is_manager_vport(esw, vport->vport))
		return;

	esw_acl_egress_lgcy_cleanup(esw, vport);
	esw_acl_ingress_lgcy_cleanup(esw, vport);
}

static void esw_vport_cleanup_acl(struct mlx5_eswitch *esw,
				  struct mlx5_vport *vport)
{
	if (esw->mode == MLX5_ESWITCH_LEGACY)
		esw_vport_destroy_legacy_acl_tables(esw, vport);
	else
		esw_vport_destroy_offloads_acl_tables(esw, vport);
}

static int esw_vport_setup(struct mlx5_eswitch *esw, struct mlx5_vport *vport)
{
	u16 vport_num = vport->vport;
	int flags;
	int err;

	err = esw_vport_setup_acl(esw, vport);
	if (err)
		return err;

	/* Attach vport to the eswitch rate limiter */
	esw_vport_enable_qos(esw, vport, vport->info.max_rate, vport->qos.bw_share);

	if (mlx5_esw_is_manager_vport(esw, vport_num))
		return 0;

	mlx5_modify_vport_admin_state(esw->dev,
				      MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
				      vport_num, 1,
				      vport->info.link_state);

	/* Host PF has its own mac/guid. */
	if (vport_num) {
		mlx5_modify_nic_vport_mac_address(esw->dev, vport_num,
						  vport->info.mac);
		mlx5_modify_nic_vport_node_guid(esw->dev, vport_num,
						vport->info.node_guid);
	}

	flags = (vport->info.vlan || vport->info.qos) ?
		SET_VLAN_STRIP | SET_VLAN_INSERT : 0;
	modify_esw_vport_cvlan(esw->dev, vport_num, vport->info.vlan,
			       vport->info.qos, flags);

	return 0;
}

/* Don't cleanup vport->info, it's needed to restore vport configuration */
static void esw_vport_cleanup(struct mlx5_eswitch *esw, struct mlx5_vport *vport)
{
	u16 vport_num = vport->vport;

	if (!mlx5_esw_is_manager_vport(esw, vport_num))
		mlx5_modify_vport_admin_state(esw->dev,
					      MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
					      vport_num, 1,
					      MLX5_VPORT_ADMIN_STATE_DOWN);

	esw_vport_disable_qos(esw, vport);
	esw_vport_cleanup_acl(esw, vport);
}

static int esw_enable_vport(struct mlx5_eswitch *esw, u16 vport_num,
			    enum mlx5_eswitch_vport_event enabled_events)
{
	struct mlx5_vport *vport;
	int ret;

	vport = mlx5_eswitch_get_vport(esw, vport_num);

	mutex_lock(&esw->state_lock);
	WARN_ON(vport->enabled);

	esw_debug(esw->dev, "Enabling VPORT(%d)\n", vport_num);

	ret = esw_vport_setup(esw, vport);
	if (ret)
		goto done;

	/* Sync with current vport context */
	vport->enabled_events = enabled_events;
	vport->enabled = true;

	/* Esw manager is trusted by default. Host PF (vport 0) is trusted as well
	 * in smartNIC as it's a vport group manager.
	 */
	if (mlx5_esw_is_manager_vport(esw, vport_num) ||
	    (!vport_num && mlx5_core_is_ecpf(esw->dev)))
		vport->info.trusted = true;

	esw_vport_change_handle_locked(vport);

	esw->enabled_vports++;
	esw_debug(esw->dev, "Enabled VPORT(%d)\n", vport_num);
done:
	mutex_unlock(&esw->state_lock);
	return ret;
}

static void esw_disable_vport(struct mlx5_eswitch *esw, u16 vport_num)
{
	struct mlx5_vport *vport;

	vport = mlx5_eswitch_get_vport(esw, vport_num);

	mutex_lock(&esw->state_lock);
	if (!vport->enabled)
		goto done;

	esw_debug(esw->dev, "Disabling vport(%d)\n", vport_num);
	/* Mark this vport as disabled to discard new events */
	vport->enabled = false;

	/* Disable events from this vport */
	arm_vport_context_events_cmd(esw->dev, vport->vport, 0);
	/* We don't assume VFs will cleanup after themselves.
	 * Calling vport change handler while vport is disabled will cleanup
	 * the vport resources.
	 */
	esw_vport_change_handle_locked(vport);
	vport->enabled_events = 0;
	esw_vport_cleanup(esw, vport);
	esw->enabled_vports--;

done:
	mutex_unlock(&esw->state_lock);
}

static int eswitch_vport_event(struct notifier_block *nb,
			       unsigned long type, void *data)
{
	struct mlx5_eswitch *esw = mlx5_nb_cof(nb, struct mlx5_eswitch, nb);
	struct mlx5_eqe *eqe = data;
	struct mlx5_vport *vport;
	u16 vport_num;

	vport_num = be16_to_cpu(eqe->data.vport_change.vport_num);
	vport = mlx5_eswitch_get_vport(esw, vport_num);
	if (!IS_ERR(vport))
		queue_work(esw->work_queue, &vport->vport_change_handler);
	return NOTIFY_OK;
}

/**
 * mlx5_esw_query_functions - Returns raw output about functions state
 * @dev:	Pointer to device to query
 *
 * mlx5_esw_query_functions() allocates and returns functions changed
 * raw output memory pointer from device on success. Otherwise returns ERR_PTR.
 * Caller must free the memory using kvfree() when valid pointer is returned.
 */
const u32 *mlx5_esw_query_functions(struct mlx5_core_dev *dev)
{
	int outlen = MLX5_ST_SZ_BYTES(query_esw_functions_out);
	u32 in[MLX5_ST_SZ_DW(query_esw_functions_in)] = {};
	u32 *out;
	int err;

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

	MLX5_SET(query_esw_functions_in, in, opcode,
		 MLX5_CMD_OP_QUERY_ESW_FUNCTIONS);

	err = mlx5_cmd_exec_inout(dev, query_esw_functions, in, out);
	if (!err)
		return out;

	kvfree(out);
	return ERR_PTR(err);
}

static void mlx5_eswitch_event_handlers_register(struct mlx5_eswitch *esw)
{
	MLX5_NB_INIT(&esw->nb, eswitch_vport_event, NIC_VPORT_CHANGE);
	mlx5_eq_notifier_register(esw->dev, &esw->nb);

	if (esw->mode == MLX5_ESWITCH_OFFLOADS && mlx5_eswitch_is_funcs_handler(esw->dev)) {
		MLX5_NB_INIT(&esw->esw_funcs.nb, mlx5_esw_funcs_changed_handler,
			     ESW_FUNCTIONS_CHANGED);
		mlx5_eq_notifier_register(esw->dev, &esw->esw_funcs.nb);
	}
}

static void mlx5_eswitch_event_handlers_unregister(struct mlx5_eswitch *esw)
{
	if (esw->mode == MLX5_ESWITCH_OFFLOADS && mlx5_eswitch_is_funcs_handler(esw->dev))
		mlx5_eq_notifier_unregister(esw->dev, &esw->esw_funcs.nb);

	mlx5_eq_notifier_unregister(esw->dev, &esw->nb);

	flush_workqueue(esw->work_queue);
}

static void mlx5_eswitch_clear_vf_vports_info(struct mlx5_eswitch *esw)
{
	struct mlx5_vport *vport;
	int i;

	mlx5_esw_for_each_vf_vport(esw, i, vport, esw->esw_funcs.num_vfs) {
		memset(&vport->info, 0, sizeof(vport->info));
		vport->info.link_state = MLX5_VPORT_ADMIN_STATE_AUTO;
	}
}

/* Public E-Switch API */
#define ESW_ALLOWED(esw) ((esw) && MLX5_ESWITCH_MANAGER((esw)->dev))

int mlx5_eswitch_load_vport(struct mlx5_eswitch *esw, u16 vport_num,
			    enum mlx5_eswitch_vport_event enabled_events)
{
	int err;

	err = esw_enable_vport(esw, vport_num, enabled_events);
	if (err)
		return err;

	err = esw_offloads_load_rep(esw, vport_num);
	if (err)
		goto err_rep;

	return err;

err_rep:
	esw_disable_vport(esw, vport_num);
	return err;
}

void mlx5_eswitch_unload_vport(struct mlx5_eswitch *esw, u16 vport_num)
{
	esw_offloads_unload_rep(esw, vport_num);
	esw_disable_vport(esw, vport_num);
}

void mlx5_eswitch_unload_vf_vports(struct mlx5_eswitch *esw, u16 num_vfs)
{
	int i;

	mlx5_esw_for_each_vf_vport_num_reverse(esw, i, num_vfs)
		mlx5_eswitch_unload_vport(esw, i);
}

int mlx5_eswitch_load_vf_vports(struct mlx5_eswitch *esw, u16 num_vfs,
				enum mlx5_eswitch_vport_event enabled_events)
{
	int err;
	int i;

	mlx5_esw_for_each_vf_vport_num(esw, i, num_vfs) {
		err = mlx5_eswitch_load_vport(esw, i, enabled_events);
		if (err)
			goto vf_err;
	}

	return 0;

vf_err:
	mlx5_eswitch_unload_vf_vports(esw, i - 1);
	return err;
}

/* mlx5_eswitch_enable_pf_vf_vports() enables vports of PF, ECPF and VFs
 * whichever are present on the eswitch.
 */
int
mlx5_eswitch_enable_pf_vf_vports(struct mlx5_eswitch *esw,
				 enum mlx5_eswitch_vport_event enabled_events)
{
	int ret;

	/* Enable PF vport */
	ret = mlx5_eswitch_load_vport(esw, MLX5_VPORT_PF, enabled_events);
	if (ret)
		return ret;

	/* Enable ECPF vport */
	if (mlx5_ecpf_vport_exists(esw->dev)) {
		ret = mlx5_eswitch_load_vport(esw, MLX5_VPORT_ECPF, enabled_events);
		if (ret)
			goto ecpf_err;
	}

	/* Enable VF vports */
	ret = mlx5_eswitch_load_vf_vports(esw, esw->esw_funcs.num_vfs,
					  enabled_events);
	if (ret)
		goto vf_err;
	return 0;

vf_err:
	if (mlx5_ecpf_vport_exists(esw->dev))
		mlx5_eswitch_unload_vport(esw, MLX5_VPORT_ECPF);

ecpf_err:
	mlx5_eswitch_unload_vport(esw, MLX5_VPORT_PF);
	return ret;
}

/* mlx5_eswitch_disable_pf_vf_vports() disables vports of PF, ECPF and VFs
 * whichever are previously enabled on the eswitch.
 */
void mlx5_eswitch_disable_pf_vf_vports(struct mlx5_eswitch *esw)
{
	mlx5_eswitch_unload_vf_vports(esw, esw->esw_funcs.num_vfs);

	if (mlx5_ecpf_vport_exists(esw->dev))
		mlx5_eswitch_unload_vport(esw, MLX5_VPORT_ECPF);

	mlx5_eswitch_unload_vport(esw, MLX5_VPORT_PF);
}

static void mlx5_eswitch_get_devlink_param(struct mlx5_eswitch *esw)
{
	struct devlink *devlink = priv_to_devlink(esw->dev);
	union devlink_param_value val;
	int err;

	err = devlink_param_driverinit_value_get(devlink,
						 MLX5_DEVLINK_PARAM_ID_ESW_LARGE_GROUP_NUM,
						 &val);
	if (!err) {
		esw->params.large_group_num = val.vu32;
	} else {
		esw_warn(esw->dev,
			 "Devlink can't get param fdb_large_groups, uses default (%d).\n",
			 ESW_OFFLOADS_DEFAULT_NUM_GROUPS);
		esw->params.large_group_num = ESW_OFFLOADS_DEFAULT_NUM_GROUPS;
	}
}

static void
mlx5_eswitch_update_num_of_vfs(struct mlx5_eswitch *esw, int num_vfs)
{
	const u32 *out;

	WARN_ON_ONCE(esw->mode != MLX5_ESWITCH_NONE);

	if (num_vfs < 0)
		return;

	if (!mlx5_core_is_ecpf_esw_manager(esw->dev)) {
		esw->esw_funcs.num_vfs = num_vfs;
		return;
	}

	out = mlx5_esw_query_functions(esw->dev);
	if (IS_ERR(out))
		return;

	esw->esw_funcs.num_vfs = MLX5_GET(query_esw_functions_out, out,
					  host_params_context.host_num_of_vfs);
	kvfree(out);
}

/**
 * mlx5_eswitch_enable_locked - Enable eswitch
 * @esw:	Pointer to eswitch
 * @mode:	Eswitch mode to enable
 * @num_vfs:	Enable eswitch for given number of VFs. This is optional.
 *		Valid value are 0, > 0 and MLX5_ESWITCH_IGNORE_NUM_VFS.
 *		Caller should pass num_vfs > 0 when enabling eswitch for
 *		vf vports. Caller should pass num_vfs = 0, when eswitch
 *		is enabled without sriov VFs or when caller
 *		is unaware of the sriov state of the host PF on ECPF based
 *		eswitch. Caller should pass < 0 when num_vfs should be
 *		completely ignored. This is typically the case when eswitch
 *		is enabled without sriov regardless of PF/ECPF system.
 * mlx5_eswitch_enable_locked() Enables eswitch in either legacy or offloads
 * mode. If num_vfs >=0 is provided, it setup VF related eswitch vports.
 * It returns 0 on success or error code on failure.
 */
int mlx5_eswitch_enable_locked(struct mlx5_eswitch *esw, int mode, int num_vfs)
{
	int err;

	lockdep_assert_held(&esw->mode_lock);

	if (!MLX5_CAP_ESW_FLOWTABLE_FDB(esw->dev, ft_support)) {
		esw_warn(esw->dev, "FDB is not supported, aborting ...\n");
		return -EOPNOTSUPP;
	}

	if (!MLX5_CAP_ESW_INGRESS_ACL(esw->dev, ft_support))
		esw_warn(esw->dev, "ingress ACL is not supported by FW\n");

	if (!MLX5_CAP_ESW_EGRESS_ACL(esw->dev, ft_support))
		esw_warn(esw->dev, "engress ACL is not supported by FW\n");

	mlx5_eswitch_get_devlink_param(esw);

	mlx5_eswitch_update_num_of_vfs(esw, num_vfs);

	esw_create_tsar(esw);

	esw->mode = mode;

	mlx5_lag_update(esw->dev);

	if (mode == MLX5_ESWITCH_LEGACY) {
		err = esw_legacy_enable(esw);
	} else {
		mlx5_reload_interface(esw->dev, MLX5_INTERFACE_PROTOCOL_ETH);
		mlx5_reload_interface(esw->dev, MLX5_INTERFACE_PROTOCOL_IB);
		err = esw_offloads_enable(esw);
	}

	if (err)
		goto abort;

	mlx5_eswitch_event_handlers_register(esw);

	esw_info(esw->dev, "Enable: mode(%s), nvfs(%d), active vports(%d)\n",
		 mode == MLX5_ESWITCH_LEGACY ? "LEGACY" : "OFFLOADS",
		 esw->esw_funcs.num_vfs, esw->enabled_vports);

	return 0;

abort:
	esw->mode = MLX5_ESWITCH_NONE;

	if (mode == MLX5_ESWITCH_OFFLOADS) {
		mlx5_reload_interface(esw->dev, MLX5_INTERFACE_PROTOCOL_IB);
		mlx5_reload_interface(esw->dev, MLX5_INTERFACE_PROTOCOL_ETH);
	}
	esw_destroy_tsar(esw);
	return err;
}

/**
 * mlx5_eswitch_enable - Enable eswitch
 * @esw:	Pointer to eswitch
 * @num_vfs:	Enable eswitch swich for given number of VFs.
 *		Caller must pass num_vfs > 0 when enabling eswitch for
 *		vf vports.
 * mlx5_eswitch_enable() returns 0 on success or error code on failure.
 */
int mlx5_eswitch_enable(struct mlx5_eswitch *esw, int num_vfs)
{
	int ret;

	if (!ESW_ALLOWED(esw))
		return 0;

	mutex_lock(&esw->mode_lock);
	if (esw->mode == MLX5_ESWITCH_NONE) {
		ret = mlx5_eswitch_enable_locked(esw, MLX5_ESWITCH_LEGACY, num_vfs);
	} else {
		enum mlx5_eswitch_vport_event vport_events;

		vport_events = (esw->mode == MLX5_ESWITCH_LEGACY) ?
					MLX5_LEGACY_SRIOV_VPORT_EVENTS : MLX5_VPORT_UC_ADDR_CHANGE;
		ret = mlx5_eswitch_load_vf_vports(esw, num_vfs, vport_events);
		if (!ret)
			esw->esw_funcs.num_vfs = num_vfs;
	}
	mutex_unlock(&esw->mode_lock);
	return ret;
}

void mlx5_eswitch_disable_locked(struct mlx5_eswitch *esw, bool clear_vf)
{
	int old_mode;

	lockdep_assert_held_write(&esw->mode_lock);

	if (esw->mode == MLX5_ESWITCH_NONE)
		return;

	esw_info(esw->dev, "Disable: mode(%s), nvfs(%d), active vports(%d)\n",
		 esw->mode == MLX5_ESWITCH_LEGACY ? "LEGACY" : "OFFLOADS",
		 esw->esw_funcs.num_vfs, esw->enabled_vports);

	mlx5_eswitch_event_handlers_unregister(esw);

	if (esw->mode == MLX5_ESWITCH_LEGACY)
		esw_legacy_disable(esw);
	else if (esw->mode == MLX5_ESWITCH_OFFLOADS)
		esw_offloads_disable(esw);

	old_mode = esw->mode;
	esw->mode = MLX5_ESWITCH_NONE;

	mlx5_lag_update(esw->dev);

	if (old_mode == MLX5_ESWITCH_OFFLOADS) {
		mlx5_reload_interface(esw->dev, MLX5_INTERFACE_PROTOCOL_IB);
		mlx5_reload_interface(esw->dev, MLX5_INTERFACE_PROTOCOL_ETH);
	}
	esw_destroy_tsar(esw);

	if (clear_vf)
		mlx5_eswitch_clear_vf_vports_info(esw);
}

void mlx5_eswitch_disable(struct mlx5_eswitch *esw, bool clear_vf)
{
	if (!ESW_ALLOWED(esw))
		return;

	mutex_lock(&esw->mode_lock);
	mlx5_eswitch_disable_locked(esw, clear_vf);
	esw->esw_funcs.num_vfs = 0;
	mutex_unlock(&esw->mode_lock);
}

int mlx5_eswitch_init(struct mlx5_core_dev *dev)
{
	struct mlx5_eswitch *esw;
	struct mlx5_vport *vport;
	int total_vports;
	int err, i;

	if (!MLX5_VPORT_MANAGER(dev))
		return 0;

	total_vports = mlx5_eswitch_get_total_vports(dev);

	esw_info(dev,
		 "Total vports %d, per vport: max uc(%d) max mc(%d)\n",
		 total_vports,
		 MLX5_MAX_UC_PER_VPORT(dev),
		 MLX5_MAX_MC_PER_VPORT(dev));

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

	esw->dev = dev;
	esw->manager_vport = mlx5_eswitch_manager_vport(dev);
	esw->first_host_vport = mlx5_eswitch_first_host_vport_num(dev);

	esw->work_queue = create_singlethread_workqueue("mlx5_esw_wq");
	if (!esw->work_queue) {
		err = -ENOMEM;
		goto abort;
	}

	esw->vports = kcalloc(total_vports, sizeof(struct mlx5_vport),
			      GFP_KERNEL);
	if (!esw->vports) {
		err = -ENOMEM;
		goto abort;
	}

	esw->total_vports = total_vports;

	err = esw_offloads_init_reps(esw);
	if (err)
		goto abort;

	mutex_init(&esw->offloads.encap_tbl_lock);
	hash_init(esw->offloads.encap_tbl);
	mutex_init(&esw->offloads.decap_tbl_lock);
	hash_init(esw->offloads.decap_tbl);
	mlx5e_mod_hdr_tbl_init(&esw->offloads.mod_hdr);
	atomic64_set(&esw->offloads.num_flows, 0);
	ida_init(&esw->offloads.vport_metadata_ida);
	mutex_init(&esw->state_lock);
	mutex_init(&esw->mode_lock);

	mlx5_esw_for_all_vports(esw, i, vport) {
		vport->vport = mlx5_eswitch_index_to_vport_num(esw, i);
		vport->info.link_state = MLX5_VPORT_ADMIN_STATE_AUTO;
		vport->dev = dev;
		INIT_WORK(&vport->vport_change_handler,
			  esw_vport_change_handler);
	}

	esw->enabled_vports = 0;
	esw->mode = MLX5_ESWITCH_NONE;
	esw->offloads.inline_mode = MLX5_INLINE_MODE_NONE;

	dev->priv.eswitch = esw;
	return 0;
abort:
	if (esw->work_queue)
		destroy_workqueue(esw->work_queue);
	esw_offloads_cleanup_reps(esw);
	kfree(esw->vports);
	kfree(esw);
	return err;
}

void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw)
{
	if (!esw || !MLX5_VPORT_MANAGER(esw->dev))
		return;

	esw_info(esw->dev, "cleanup\n");

	esw->dev->priv.eswitch = NULL;
	destroy_workqueue(esw->work_queue);
	esw_offloads_cleanup_reps(esw);
	mutex_destroy(&esw->mode_lock);
	mutex_destroy(&esw->state_lock);
	ida_destroy(&esw->offloads.vport_metadata_ida);
	mlx5e_mod_hdr_tbl_destroy(&esw->offloads.mod_hdr);
	mutex_destroy(&esw->offloads.encap_tbl_lock);
	mutex_destroy(&esw->offloads.decap_tbl_lock);
	kfree(esw->vports);
	kfree(esw);
}

/* Vport Administration */
static int
mlx5_esw_set_vport_mac_locked(struct mlx5_eswitch *esw,
			      struct mlx5_vport *evport, const u8 *mac)
{
	u16 vport_num = evport->vport;
	u64 node_guid;
	int err = 0;

	if (is_multicast_ether_addr(mac))
		return -EINVAL;

	if (evport->info.spoofchk && !is_valid_ether_addr(mac))
		mlx5_core_warn(esw->dev,
			       "Set invalid MAC while spoofchk is on, vport(%d)\n",
			       vport_num);

	err = mlx5_modify_nic_vport_mac_address(esw->dev, vport_num, mac);
	if (err) {
		mlx5_core_warn(esw->dev,
			       "Failed to mlx5_modify_nic_vport_mac vport(%d) err=(%d)\n",
			       vport_num, err);
		return err;
	}

	node_guid_gen_from_mac(&node_guid, mac);
	err = mlx5_modify_nic_vport_node_guid(esw->dev, vport_num, node_guid);
	if (err)
		mlx5_core_warn(esw->dev,
			       "Failed to set vport %d node guid, err = %d. RDMA_CM will not function properly for this VF.\n",
			       vport_num, err);

	ether_addr_copy(evport->info.mac, mac);
	evport->info.node_guid = node_guid;
	if (evport->enabled && esw->mode == MLX5_ESWITCH_LEGACY)
		err = esw_acl_ingress_lgcy_setup(esw, evport);

	return err;
}

int mlx5_eswitch_set_vport_mac(struct mlx5_eswitch *esw,
			       u16 vport, const u8 *mac)
{
	struct mlx5_vport *evport = mlx5_eswitch_get_vport(esw, vport);
	int err = 0;

	if (IS_ERR(evport))
		return PTR_ERR(evport);

	mutex_lock(&esw->state_lock);
	err = mlx5_esw_set_vport_mac_locked(esw, evport, mac);
	mutex_unlock(&esw->state_lock);
	return err;
}

static bool
is_port_function_supported(const struct mlx5_eswitch *esw, u16 vport_num)
{
	return vport_num == MLX5_VPORT_PF ||
	       mlx5_eswitch_is_vf_vport(esw, vport_num);
}

int mlx5_devlink_port_function_hw_addr_get(struct devlink *devlink,
					   struct devlink_port *port,
					   u8 *hw_addr, int *hw_addr_len,
					   struct netlink_ext_ack *extack)
{
	struct mlx5_eswitch *esw;
	struct mlx5_vport *vport;
	int err = -EOPNOTSUPP;
	u16 vport_num;

	esw = mlx5_devlink_eswitch_get(devlink);
	if (IS_ERR(esw))
		return PTR_ERR(esw);

	vport_num = mlx5_esw_devlink_port_index_to_vport_num(port->index);
	if (!is_port_function_supported(esw, vport_num))
		return -EOPNOTSUPP;

	vport = mlx5_eswitch_get_vport(esw, vport_num);
	if (IS_ERR(vport)) {
		NL_SET_ERR_MSG_MOD(extack, "Invalid port");
		return PTR_ERR(vport);
	}

	mutex_lock(&esw->state_lock);
	if (vport->enabled) {
		ether_addr_copy(hw_addr, vport->info.mac);
		*hw_addr_len = ETH_ALEN;
		err = 0;
	} else {
		NL_SET_ERR_MSG_MOD(extack, "Eswitch vport is disabled");
	}
	mutex_unlock(&esw->state_lock);
	return err;
}

int mlx5_devlink_port_function_hw_addr_set(struct devlink *devlink,
					   struct devlink_port *port,
					   const u8 *hw_addr, int hw_addr_len,
					   struct netlink_ext_ack *extack)
{
	struct mlx5_eswitch *esw;
	struct mlx5_vport *vport;
	int err = -EOPNOTSUPP;
	u16 vport_num;

	esw = mlx5_devlink_eswitch_get(devlink);
	if (IS_ERR(esw)) {
		NL_SET_ERR_MSG_MOD(extack, "Eswitch doesn't support set hw_addr");
		return PTR_ERR(esw);
	}

	vport_num = mlx5_esw_devlink_port_index_to_vport_num(port->index);
	if (!is_port_function_supported(esw, vport_num)) {
		NL_SET_ERR_MSG_MOD(extack, "Port doesn't support set hw_addr");
		return -EINVAL;
	}
	vport = mlx5_eswitch_get_vport(esw, vport_num);
	if (IS_ERR(vport)) {
		NL_SET_ERR_MSG_MOD(extack, "Invalid port");
		return PTR_ERR(vport);
	}

	mutex_lock(&esw->state_lock);
	if (vport->enabled)
		err = mlx5_esw_set_vport_mac_locked(esw, vport, hw_addr);
	else
		NL_SET_ERR_MSG_MOD(extack, "Eswitch vport is disabled");
	mutex_unlock(&esw->state_lock);
	return err;
}

int mlx5_eswitch_set_vport_state(struct mlx5_eswitch *esw,
				 u16 vport, int link_state)
{
	struct mlx5_vport *evport = mlx5_eswitch_get_vport(esw, vport);
	int opmod = MLX5_VPORT_STATE_OP_MOD_ESW_VPORT;
	int other_vport = 1;
	int err = 0;

	if (!ESW_ALLOWED(esw))
		return -EPERM;
	if (IS_ERR(evport))
		return PTR_ERR(evport);

	if (vport == MLX5_VPORT_UPLINK) {
		opmod = MLX5_VPORT_STATE_OP_MOD_UPLINK;
		other_vport = 0;
		vport = 0;
	}
	mutex_lock(&esw->state_lock);

	err = mlx5_modify_vport_admin_state(esw->dev, opmod, vport, other_vport, link_state);
	if (err) {
		mlx5_core_warn(esw->dev, "Failed to set vport %d link state, opmod = %d, err = %d",
			       vport, opmod, err);
		goto unlock;
	}

	evport->info.link_state = link_state;

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

int mlx5_eswitch_get_vport_config(struct mlx5_eswitch *esw,
				  u16 vport, struct ifla_vf_info *ivi)
{
	struct mlx5_vport *evport = mlx5_eswitch_get_vport(esw, vport);

	if (IS_ERR(evport))
		return PTR_ERR(evport);

	memset(ivi, 0, sizeof(*ivi));
	ivi->vf = vport - 1;

	mutex_lock(&esw->state_lock);
	ether_addr_copy(ivi->mac, evport->info.mac);
	ivi->linkstate = evport->info.link_state;
	ivi->vlan = evport->info.vlan;
	ivi->qos = evport->info.qos;
	ivi->spoofchk = evport->info.spoofchk;
	ivi->trusted = evport->info.trusted;
	ivi->min_tx_rate = evport->info.min_rate;
	ivi->max_tx_rate = evport->info.max_rate;
	mutex_unlock(&esw->state_lock);

	return 0;
}

int __mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw,
				  u16 vport, u16 vlan, u8 qos, u8 set_flags)
{
	struct mlx5_vport *evport = mlx5_eswitch_get_vport(esw, vport);
	int err = 0;

	if (IS_ERR(evport))
		return PTR_ERR(evport);
	if (vlan > 4095 || qos > 7)
		return -EINVAL;

	err = modify_esw_vport_cvlan(esw->dev, vport, vlan, qos, set_flags);
	if (err)
		return err;

	evport->info.vlan = vlan;
	evport->info.qos = qos;
	if (evport->enabled && esw->mode == MLX5_ESWITCH_LEGACY) {
		err = esw_acl_ingress_lgcy_setup(esw, evport);
		if (err)
			return err;
		err = esw_acl_egress_lgcy_setup(esw, evport);
	}

	return err;
}

int mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw,
				u16 vport, u16 vlan, u8 qos)
{
	u8 set_flags = 0;
	int err;

	if (!ESW_ALLOWED(esw))
		return -EPERM;

	if (vlan || qos)
		set_flags = SET_VLAN_STRIP | SET_VLAN_INSERT;

	mutex_lock(&esw->state_lock);
	err = __mlx5_eswitch_set_vport_vlan(esw, vport, vlan, qos, set_flags);
	mutex_unlock(&esw->state_lock);

	return err;
}

int mlx5_eswitch_set_vport_spoofchk(struct mlx5_eswitch *esw,
				    u16 vport, bool spoofchk)
{
	struct mlx5_vport *evport = mlx5_eswitch_get_vport(esw, vport);
	bool pschk;
	int err = 0;

	if (!ESW_ALLOWED(esw))
		return -EPERM;
	if (IS_ERR(evport))
		return PTR_ERR(evport);

	mutex_lock(&esw->state_lock);
	pschk = evport->info.spoofchk;
	evport->info.spoofchk = spoofchk;
	if (pschk && !is_valid_ether_addr(evport->info.mac))
		mlx5_core_warn(esw->dev,
			       "Spoofchk in set while MAC is invalid, vport(%d)\n",
			       evport->vport);
	if (evport->enabled && esw->mode == MLX5_ESWITCH_LEGACY)
		err = esw_acl_ingress_lgcy_setup(esw, evport);
	if (err)
		evport->info.spoofchk = pschk;
	mutex_unlock(&esw->state_lock);

	return err;
}

static void esw_cleanup_vepa_rules(struct mlx5_eswitch *esw)
{
	if (esw->fdb_table.legacy.vepa_uplink_rule)
		mlx5_del_flow_rules(esw->fdb_table.legacy.vepa_uplink_rule);

	if (esw->fdb_table.legacy.vepa_star_rule)
		mlx5_del_flow_rules(esw->fdb_table.legacy.vepa_star_rule);

	esw->fdb_table.legacy.vepa_uplink_rule = NULL;
	esw->fdb_table.legacy.vepa_star_rule = NULL;
}

static int _mlx5_eswitch_set_vepa_locked(struct mlx5_eswitch *esw,
					 u8 setting)
{
	struct mlx5_flow_destination dest = {};
	struct mlx5_flow_act flow_act = {};
	struct mlx5_flow_handle *flow_rule;
	struct mlx5_flow_spec *spec;
	int err = 0;
	void *misc;

	if (!setting) {
		esw_cleanup_vepa_rules(esw);
		return 0;
	}

	if (esw->fdb_table.legacy.vepa_uplink_rule)
		return 0;

	spec = kvzalloc(sizeof(*spec), GFP_KERNEL);
	if (!spec)
		return -ENOMEM;

	/* Uplink rule forward uplink traffic to FDB */
	misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters);
	MLX5_SET(fte_match_set_misc, misc, source_port, MLX5_VPORT_UPLINK);

	misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters);
	MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_port);

	spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS;
	dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
	dest.ft = esw->fdb_table.legacy.fdb;
	flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
	flow_rule = mlx5_add_flow_rules(esw->fdb_table.legacy.vepa_fdb, spec,
					&flow_act, &dest, 1);
	if (IS_ERR(flow_rule)) {
		err = PTR_ERR(flow_rule);
		goto out;
	} else {
		esw->fdb_table.legacy.vepa_uplink_rule = flow_rule;
	}

	/* Star rule to forward all traffic to uplink vport */
	memset(&dest, 0, sizeof(dest));
	dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT;
	dest.vport.num = MLX5_VPORT_UPLINK;
	flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
	flow_rule = mlx5_add_flow_rules(esw->fdb_table.legacy.vepa_fdb, NULL,
					&flow_act, &dest, 1);
	if (IS_ERR(flow_rule)) {
		err = PTR_ERR(flow_rule);
		goto out;
	} else {
		esw->fdb_table.legacy.vepa_star_rule = flow_rule;
	}

out:
	kvfree(spec);
	if (err)
		esw_cleanup_vepa_rules(esw);
	return err;
}

int mlx5_eswitch_set_vepa(struct mlx5_eswitch *esw, u8 setting)
{
	int err = 0;

	if (!esw)
		return -EOPNOTSUPP;

	if (!ESW_ALLOWED(esw))
		return -EPERM;

	mutex_lock(&esw->state_lock);
	if (esw->mode != MLX5_ESWITCH_LEGACY) {
		err = -EOPNOTSUPP;
		goto out;
	}

	err = _mlx5_eswitch_set_vepa_locked(esw, setting);

out:
	mutex_unlock(&esw->state_lock);
	return err;
}

int mlx5_eswitch_get_vepa(struct mlx5_eswitch *esw, u8 *setting)
{
	if (!esw)
		return -EOPNOTSUPP;

	if (!ESW_ALLOWED(esw))
		return -EPERM;

	if (esw->mode != MLX5_ESWITCH_LEGACY)
		return -EOPNOTSUPP;

	*setting = esw->fdb_table.legacy.vepa_uplink_rule ? 1 : 0;
	return 0;
}

int mlx5_eswitch_set_vport_trust(struct mlx5_eswitch *esw,
				 u16 vport, bool setting)
{
	struct mlx5_vport *evport = mlx5_eswitch_get_vport(esw, vport);

	if (!ESW_ALLOWED(esw))
		return -EPERM;
	if (IS_ERR(evport))
		return PTR_ERR(evport);

	mutex_lock(&esw->state_lock);
	evport->info.trusted = setting;
	if (evport->enabled)
		esw_vport_change_handle_locked(evport);
	mutex_unlock(&esw->state_lock);

	return 0;
}

static u32 calculate_vports_min_rate_divider(struct mlx5_eswitch *esw)
{
	u32 fw_max_bw_share = MLX5_CAP_QOS(esw->dev, max_tsar_bw_share);
	struct mlx5_vport *evport;
	u32 max_guarantee = 0;
	int i;

	mlx5_esw_for_all_vports(esw, i, evport) {
		if (!evport->enabled || evport->info.min_rate < max_guarantee)
			continue;
		max_guarantee = evport->info.min_rate;
	}

	return max_t(u32, max_guarantee / fw_max_bw_share, 1);
}

static int normalize_vports_min_rate(struct mlx5_eswitch *esw, u32 divider)
{
	u32 fw_max_bw_share = MLX5_CAP_QOS(esw->dev, max_tsar_bw_share);
	struct mlx5_vport *evport;
	u32 vport_max_rate;
	u32 vport_min_rate;
	u32 bw_share;
	int err;
	int i;

	mlx5_esw_for_all_vports(esw, i, evport) {
		if (!evport->enabled)
			continue;
		vport_min_rate = evport->info.min_rate;
		vport_max_rate = evport->info.max_rate;
		bw_share = MLX5_MIN_BW_SHARE;

		if (vport_min_rate)
			bw_share = MLX5_RATE_TO_BW_SHARE(vport_min_rate,
							 divider,
							 fw_max_bw_share);

		if (bw_share == evport->qos.bw_share)
			continue;

		err = esw_vport_qos_config(esw, evport, vport_max_rate,
					   bw_share);
		if (!err)
			evport->qos.bw_share = bw_share;
		else
			return err;
	}

	return 0;
}

int mlx5_eswitch_set_vport_rate(struct mlx5_eswitch *esw, u16 vport,
				u32 max_rate, u32 min_rate)
{
	struct mlx5_vport *evport = mlx5_eswitch_get_vport(esw, vport);
	u32 fw_max_bw_share;
	u32 previous_min_rate;
	u32 divider;
	bool min_rate_supported;
	bool max_rate_supported;
	int err = 0;

	if (!ESW_ALLOWED(esw))
		return -EPERM;
	if (IS_ERR(evport))
		return PTR_ERR(evport);

	fw_max_bw_share = MLX5_CAP_QOS(esw->dev, max_tsar_bw_share);
	min_rate_supported = MLX5_CAP_QOS(esw->dev, esw_bw_share) &&
				fw_max_bw_share >= MLX5_MIN_BW_SHARE;
	max_rate_supported = MLX5_CAP_QOS(esw->dev, esw_rate_limit);

	if ((min_rate && !min_rate_supported) || (max_rate && !max_rate_supported))
		return -EOPNOTSUPP;

	mutex_lock(&esw->state_lock);

	if (min_rate == evport->info.min_rate)
		goto set_max_rate;

	previous_min_rate = evport->info.min_rate;
	evport->info.min_rate = min_rate;
	divider = calculate_vports_min_rate_divider(esw);
	err = normalize_vports_min_rate(esw, divider);
	if (err) {
		evport->info.min_rate = previous_min_rate;
		goto unlock;
	}

set_max_rate:
	if (max_rate == evport->info.max_rate)
		goto unlock;

	err = esw_vport_qos_config(esw, evport, max_rate, evport->qos.bw_share);
	if (!err)
		evport->info.max_rate = max_rate;

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

static int mlx5_eswitch_query_vport_drop_stats(struct mlx5_core_dev *dev,
					       struct mlx5_vport *vport,
					       struct mlx5_vport_drop_stats *stats)
{
	struct mlx5_eswitch *esw = dev->priv.eswitch;
	u64 rx_discard_vport_down, tx_discard_vport_down;
	u64 bytes = 0;
	int err = 0;

	if (esw->mode != MLX5_ESWITCH_LEGACY)
		return 0;

	mutex_lock(&esw->state_lock);
	if (!vport->enabled)
		goto unlock;

	if (!IS_ERR_OR_NULL(vport->egress.legacy.drop_counter))
		mlx5_fc_query(dev, vport->egress.legacy.drop_counter,
			      &stats->rx_dropped, &bytes);

	if (vport->ingress.legacy.drop_counter)
		mlx5_fc_query(dev, vport->ingress.legacy.drop_counter,
			      &stats->tx_dropped, &bytes);

	if (!MLX5_CAP_GEN(dev, receive_discard_vport_down) &&
	    !MLX5_CAP_GEN(dev, transmit_discard_vport_down))
		goto unlock;

	err = mlx5_query_vport_down_stats(dev, vport->vport, 1,
					  &rx_discard_vport_down,
					  &tx_discard_vport_down);
	if (err)
		goto unlock;

	if (MLX5_CAP_GEN(dev, receive_discard_vport_down))
		stats->rx_dropped += rx_discard_vport_down;
	if (MLX5_CAP_GEN(dev, transmit_discard_vport_down))
		stats->tx_dropped += tx_discard_vport_down;

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

int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw,
				 u16 vport_num,
				 struct ifla_vf_stats *vf_stats)
{
	struct mlx5_vport *vport = mlx5_eswitch_get_vport(esw, vport_num);
	int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out);
	u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)] = {};
	struct mlx5_vport_drop_stats stats = {};
	int err = 0;
	u32 *out;

	if (IS_ERR(vport))
		return PTR_ERR(vport);

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

	MLX5_SET(query_vport_counter_in, in, opcode,
		 MLX5_CMD_OP_QUERY_VPORT_COUNTER);
	MLX5_SET(query_vport_counter_in, in, op_mod, 0);
	MLX5_SET(query_vport_counter_in, in, vport_number, vport->vport);
	MLX5_SET(query_vport_counter_in, in, other_vport, 1);

	err = mlx5_cmd_exec_inout(esw->dev, query_vport_counter, in, out);
	if (err)
		goto free_out;

	#define MLX5_GET_CTR(p, x) \
		MLX5_GET64(query_vport_counter_out, p, x)

	memset(vf_stats, 0, sizeof(*vf_stats));
	vf_stats->rx_packets =
		MLX5_GET_CTR(out, received_eth_unicast.packets) +
		MLX5_GET_CTR(out, received_ib_unicast.packets) +
		MLX5_GET_CTR(out, received_eth_multicast.packets) +
		MLX5_GET_CTR(out, received_ib_multicast.packets) +
		MLX5_GET_CTR(out, received_eth_broadcast.packets);

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

	vf_stats->tx_packets =
		MLX5_GET_CTR(out, transmitted_eth_unicast.packets) +
		MLX5_GET_CTR(out, transmitted_ib_unicast.packets) +
		MLX5_GET_CTR(out, transmitted_eth_multicast.packets) +
		MLX5_GET_CTR(out, transmitted_ib_multicast.packets) +
		MLX5_GET_CTR(out, transmitted_eth_broadcast.packets);

	vf_stats->tx_bytes =
		MLX5_GET_CTR(out, transmitted_eth_unicast.octets) +
		MLX5_GET_CTR(out, transmitted_ib_unicast.octets) +
		MLX5_GET_CTR(out, transmitted_eth_multicast.octets) +
		MLX5_GET_CTR(out, transmitted_ib_multicast.octets) +
		MLX5_GET_CTR(out, transmitted_eth_broadcast.octets);

	vf_stats->multicast =
		MLX5_GET_CTR(out, received_eth_multicast.packets) +
		MLX5_GET_CTR(out, received_ib_multicast.packets);

	vf_stats->broadcast =
		MLX5_GET_CTR(out, received_eth_broadcast.packets);

	err = mlx5_eswitch_query_vport_drop_stats(esw->dev, vport, &stats);
	if (err)
		goto free_out;
	vf_stats->rx_dropped = stats.rx_dropped;
	vf_stats->tx_dropped = stats.tx_dropped;

free_out:
	kvfree(out);
	return err;
}

u8 mlx5_eswitch_mode(struct mlx5_eswitch *esw)
{
	return ESW_ALLOWED(esw) ? esw->mode : MLX5_ESWITCH_NONE;
}
EXPORT_SYMBOL_GPL(mlx5_eswitch_mode);

enum devlink_eswitch_encap_mode
mlx5_eswitch_get_encap_mode(const struct mlx5_core_dev *dev)
{
	struct mlx5_eswitch *esw;

	esw = dev->priv.eswitch;
	return ESW_ALLOWED(esw) ? esw->offloads.encap :
		DEVLINK_ESWITCH_ENCAP_MODE_NONE;
}
EXPORT_SYMBOL(mlx5_eswitch_get_encap_mode);

bool mlx5_esw_lag_prereq(struct mlx5_core_dev *dev0, struct mlx5_core_dev *dev1)
{
	if ((dev0->priv.eswitch->mode == MLX5_ESWITCH_NONE &&
	     dev1->priv.eswitch->mode == MLX5_ESWITCH_NONE) ||
	    (dev0->priv.eswitch->mode == MLX5_ESWITCH_OFFLOADS &&
	     dev1->priv.eswitch->mode == MLX5_ESWITCH_OFFLOADS))
		return true;

	return false;
}

bool mlx5_esw_multipath_prereq(struct mlx5_core_dev *dev0,
			       struct mlx5_core_dev *dev1)
{
	return (dev0->priv.eswitch->mode == MLX5_ESWITCH_OFFLOADS &&
		dev1->priv.eswitch->mode == MLX5_ESWITCH_OFFLOADS);
}