eswitch.c 46.7 KB
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/*
 * 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>
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#include <linux/mlx5/fs.h>
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#include "mlx5_core.h"
#include "eswitch.h"

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#define UPLINK_VPORT 0xFFFF

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#define MLX5_DEBUG_ESWITCH_MASK BIT(3)

#define esw_info(dev, format, ...)				\
	pr_info("(%s): E-Switch: " format, (dev)->priv.name, ##__VA_ARGS__)

#define esw_warn(dev, format, ...)				\
	pr_warn("(%s): E-Switch: " format, (dev)->priv.name, ##__VA_ARGS__)

#define esw_debug(dev, format, ...)				\
	mlx5_core_dbg_mask(dev, MLX5_DEBUG_ESWITCH_MASK, format, ##__VA_ARGS__)

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

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/* E-Switch UC L2 table hash node */
struct esw_uc_addr {
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	struct l2addr_node node;
	u32                table_index;
	u32                vport;
};

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/* E-Switch MC FDB table hash node */
struct esw_mc_addr { /* SRIOV only */
	struct l2addr_node     node;
	struct mlx5_flow_rule *uplink_rule; /* Forward to uplink rule */
	u32                    refcnt;
};

/* Vport UC/MC hash node */
struct vport_addr {
	struct l2addr_node     node;
	u8                     action;
	u32                    vport;
	struct mlx5_flow_rule *flow_rule; /* SRIOV only */
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};

enum {
	UC_ADDR_CHANGE = BIT(0),
	MC_ADDR_CHANGE = BIT(1),
};

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/* Vport context events */
#define SRIOV_VPORT_EVENTS (UC_ADDR_CHANGE | \
			    MC_ADDR_CHANGE)

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

	memset(out, 0, sizeof(out));
	memset(in, 0, sizeof(in));

	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);
	if (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 & UC_ADDR_CHANGE)
		MLX5_SET(nic_vport_context, nic_vport_ctx,
			 event_on_uc_address_change, 1);
	if (events_mask & MC_ADDR_CHANGE)
		MLX5_SET(nic_vport_context, nic_vport_ctx,
			 event_on_mc_address_change, 1);

	err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
	if (err)
		goto ex;
	err = mlx5_cmd_status_to_err_v2(out);
	if (err)
		goto ex;
	return 0;
ex:
	return err;
}

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/* E-Switch vport context HW commands */
static int query_esw_vport_context_cmd(struct mlx5_core_dev *mdev, u32 vport,
				       u32 *out, int outlen)
{
	u32 in[MLX5_ST_SZ_DW(query_esw_vport_context_in)];

	memset(in, 0, sizeof(in));

	MLX5_SET(query_nic_vport_context_in, in, opcode,
		 MLX5_CMD_OP_QUERY_ESW_VPORT_CONTEXT);

	MLX5_SET(query_esw_vport_context_in, in, vport_number, vport);
	if (vport)
		MLX5_SET(query_esw_vport_context_in, in, other_vport, 1);

	return mlx5_cmd_exec_check_status(mdev, in, sizeof(in), out, outlen);
}

static int query_esw_vport_cvlan(struct mlx5_core_dev *dev, u32 vport,
				 u16 *vlan, u8 *qos)
{
	u32 out[MLX5_ST_SZ_DW(query_esw_vport_context_out)];
	int err;
	bool cvlan_strip;
	bool cvlan_insert;

	memset(out, 0, sizeof(out));

	*vlan = 0;
	*qos = 0;

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

	err = query_esw_vport_context_cmd(dev, vport, out, sizeof(out));
	if (err)
		goto out;

	cvlan_strip = MLX5_GET(query_esw_vport_context_out, out,
			       esw_vport_context.vport_cvlan_strip);

	cvlan_insert = MLX5_GET(query_esw_vport_context_out, out,
				esw_vport_context.vport_cvlan_insert);

	if (cvlan_strip || cvlan_insert) {
		*vlan = MLX5_GET(query_esw_vport_context_out, out,
				 esw_vport_context.cvlan_id);
		*qos = MLX5_GET(query_esw_vport_context_out, out,
				esw_vport_context.cvlan_pcp);
	}

	esw_debug(dev, "Query Vport[%d] cvlan: VLAN %d qos=%d\n",
		  vport, *vlan, *qos);
out:
	return err;
}

static int modify_esw_vport_context_cmd(struct mlx5_core_dev *dev, u16 vport,
					void *in, int inlen)
{
	u32 out[MLX5_ST_SZ_DW(modify_esw_vport_context_out)];

	memset(out, 0, sizeof(out));

	MLX5_SET(modify_esw_vport_context_in, in, vport_number, vport);
	if (vport)
		MLX5_SET(modify_esw_vport_context_in, in, other_vport, 1);

	MLX5_SET(modify_esw_vport_context_in, in, opcode,
		 MLX5_CMD_OP_MODIFY_ESW_VPORT_CONTEXT);

	return mlx5_cmd_exec_check_status(dev, in, inlen,
					  out, sizeof(out));
}

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

	memset(in, 0, sizeof(in));

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

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

	if (set) {
		MLX5_SET(modify_esw_vport_context_in, in,
			 esw_vport_context.vport_cvlan_strip, 1);
		/* 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 modify_esw_vport_context_cmd(dev, vport, in, sizeof(in));
}

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/* HW L2 Table (MPFS) management */
static int set_l2_table_entry_cmd(struct mlx5_core_dev *dev, u32 index,
				  u8 *mac, u8 vlan_valid, u16 vlan)
{
	u32 in[MLX5_ST_SZ_DW(set_l2_table_entry_in)];
	u32 out[MLX5_ST_SZ_DW(set_l2_table_entry_out)];
	u8 *in_mac_addr;

	memset(in, 0, sizeof(in));
	memset(out, 0, sizeof(out));

	MLX5_SET(set_l2_table_entry_in, in, opcode,
		 MLX5_CMD_OP_SET_L2_TABLE_ENTRY);
	MLX5_SET(set_l2_table_entry_in, in, table_index, index);
	MLX5_SET(set_l2_table_entry_in, in, vlan_valid, vlan_valid);
	MLX5_SET(set_l2_table_entry_in, in, vlan, vlan);

	in_mac_addr = MLX5_ADDR_OF(set_l2_table_entry_in, in, mac_address);
	ether_addr_copy(&in_mac_addr[2], mac);

	return mlx5_cmd_exec_check_status(dev, in, sizeof(in),
					  out, sizeof(out));
}

static int del_l2_table_entry_cmd(struct mlx5_core_dev *dev, u32 index)
{
	u32 in[MLX5_ST_SZ_DW(delete_l2_table_entry_in)];
	u32 out[MLX5_ST_SZ_DW(delete_l2_table_entry_out)];

	memset(in, 0, sizeof(in));
	memset(out, 0, sizeof(out));

	MLX5_SET(delete_l2_table_entry_in, in, opcode,
		 MLX5_CMD_OP_DELETE_L2_TABLE_ENTRY);
	MLX5_SET(delete_l2_table_entry_in, in, table_index, index);
	return mlx5_cmd_exec_check_status(dev, in, sizeof(in),
					  out, sizeof(out));
}

static int alloc_l2_table_index(struct mlx5_l2_table *l2_table, u32 *ix)
{
	int err = 0;

	*ix = find_first_zero_bit(l2_table->bitmap, l2_table->size);
	if (*ix >= l2_table->size)
		err = -ENOSPC;
	else
		__set_bit(*ix, l2_table->bitmap);

	return err;
}

static void free_l2_table_index(struct mlx5_l2_table *l2_table, u32 ix)
{
	__clear_bit(ix, l2_table->bitmap);
}

static int set_l2_table_entry(struct mlx5_core_dev *dev, u8 *mac,
			      u8 vlan_valid, u16 vlan,
			      u32 *index)
{
	struct mlx5_l2_table *l2_table = &dev->priv.eswitch->l2_table;
	int err;

	err = alloc_l2_table_index(l2_table, index);
	if (err)
		return err;

	err = set_l2_table_entry_cmd(dev, *index, mac, vlan_valid, vlan);
	if (err)
		free_l2_table_index(l2_table, *index);

	return err;
}

static void del_l2_table_entry(struct mlx5_core_dev *dev, u32 index)
{
	struct mlx5_l2_table *l2_table = &dev->priv.eswitch->l2_table;

	del_l2_table_entry_cmd(dev, index);
	free_l2_table_index(l2_table, index);
}

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/* E-Switch FDB */
static struct mlx5_flow_rule *
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__esw_fdb_set_vport_rule(struct mlx5_eswitch *esw, u32 vport,
			 u8 mac_c[ETH_ALEN], u8 mac_v[ETH_ALEN])
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{
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	int match_header = (is_zero_ether_addr(mac_c) ? 0 :
			    MLX5_MATCH_OUTER_HEADERS);
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	struct mlx5_flow_rule *flow_rule = NULL;
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	struct mlx5_flow_destination dest;
	u8 *dmac_v = NULL;
	u8 *dmac_c = NULL;
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	u32 *match_v;
	u32 *match_c;

	match_v = kzalloc(MLX5_ST_SZ_BYTES(fte_match_param), GFP_KERNEL);
	match_c = kzalloc(MLX5_ST_SZ_BYTES(fte_match_param), GFP_KERNEL);
	if (!match_v || !match_c) {
		pr_warn("FDB: Failed to alloc match parameters\n");
		goto out;
	}
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	dmac_v = MLX5_ADDR_OF(fte_match_param, match_v,
			      outer_headers.dmac_47_16);
	dmac_c = MLX5_ADDR_OF(fte_match_param, match_c,
			      outer_headers.dmac_47_16);

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	if (match_header == MLX5_MATCH_OUTER_HEADERS) {
		ether_addr_copy(dmac_v, mac_v);
		ether_addr_copy(dmac_c, mac_c);
	}
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	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);
	flow_rule =
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		mlx5_add_flow_rule(esw->fdb_table.fdb,
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				   match_header,
				   match_c,
				   match_v,
				   MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,
				   0, &dest);
	if (IS_ERR_OR_NULL(flow_rule)) {
		pr_warn(
			"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;
	}
out:
	kfree(match_v);
	kfree(match_c);
	return flow_rule;
}

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static struct mlx5_flow_rule *
esw_fdb_set_vport_rule(struct mlx5_eswitch *esw, u8 mac[ETH_ALEN], u32 vport)
{
	u8 mac_c[ETH_ALEN];

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

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static int esw_create_fdb_table(struct mlx5_eswitch *esw, int nvports)
{
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	int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
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	struct mlx5_core_dev *dev = esw->dev;
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	struct mlx5_flow_namespace *root_ns;
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	struct mlx5_flow_table *fdb;
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	struct mlx5_flow_group *g;
	void *match_criteria;
	int table_size;
	u32 *flow_group_in;
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	u8 *dmac;
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	int err = 0;
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	esw_debug(dev, "Create FDB log_max_size(%d)\n",
		  MLX5_CAP_ESW_FLOWTABLE_FDB(dev, log_max_ft_size));

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	root_ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_FDB);
	if (!root_ns) {
		esw_warn(dev, "Failed to get FDB flow namespace\n");
		return -ENOMEM;
	}
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	flow_group_in = mlx5_vzalloc(inlen);
	if (!flow_group_in)
		return -ENOMEM;
	memset(flow_group_in, 0, inlen);

	table_size = BIT(MLX5_CAP_ESW_FLOWTABLE_FDB(dev, log_max_ft_size));
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	fdb = mlx5_create_flow_table(root_ns, 0, table_size, 0);
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	if (IS_ERR_OR_NULL(fdb)) {
		err = PTR_ERR(fdb);
		esw_warn(dev, "Failed to create FDB Table err %d\n", err);
		goto out;
	}
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	esw->fdb_table.fdb = fdb;
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	/* Addresses group : Full match unicast/multicast addresses */
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	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);
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	/* Preserve 2 entries for allmulti and promisc rules*/
	MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, table_size - 3);
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	eth_broadcast_addr(dmac);
	g = mlx5_create_flow_group(fdb, flow_group_in);
	if (IS_ERR_OR_NULL(g)) {
		err = PTR_ERR(g);
		esw_warn(dev, "Failed to create flow group err(%d)\n", err);
		goto out;
	}
	esw->fdb_table.addr_grp = g;
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	/* 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_OR_NULL(g)) {
		err = PTR_ERR(g);
		esw_warn(dev, "Failed to create allmulti flow group err(%d)\n", err);
		goto out;
	}
	esw->fdb_table.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_OR_NULL(g)) {
		err = PTR_ERR(g);
		esw_warn(dev, "Failed to create promisc flow group err(%d)\n", err);
		goto out;
	}
	esw->fdb_table.promisc_grp = g;

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	if (err) {
		if (!IS_ERR_OR_NULL(esw->fdb_table.allmulti_grp)) {
			mlx5_destroy_flow_group(esw->fdb_table.allmulti_grp);
			esw->fdb_table.allmulti_grp = NULL;
		}
		if (!IS_ERR_OR_NULL(esw->fdb_table.addr_grp)) {
			mlx5_destroy_flow_group(esw->fdb_table.addr_grp);
			esw->fdb_table.addr_grp = NULL;
		}
		if (!IS_ERR_OR_NULL(esw->fdb_table.fdb)) {
			mlx5_destroy_flow_table(esw->fdb_table.fdb);
			esw->fdb_table.fdb = NULL;
		}
	}

490
491
	kfree(flow_group_in);
	return err;
492
493
494
495
496
497
498
}

static void esw_destroy_fdb_table(struct mlx5_eswitch *esw)
{
	if (!esw->fdb_table.fdb)
		return;

499
	esw_debug(esw->dev, "Destroy FDB Table\n");
500
501
	mlx5_destroy_flow_group(esw->fdb_table.promisc_grp);
	mlx5_destroy_flow_group(esw->fdb_table.allmulti_grp);
502
	mlx5_destroy_flow_group(esw->fdb_table.addr_grp);
503
504
	mlx5_destroy_flow_table(esw->fdb_table.fdb);
	esw->fdb_table.fdb = NULL;
505
	esw->fdb_table.addr_grp = NULL;
506
507
	esw->fdb_table.allmulti_grp = NULL;
	esw->fdb_table.promisc_grp = NULL;
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
}

/* 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)
{
	struct hlist_head *hash = esw->l2_table.l2_hash;
	struct esw_uc_addr *esw_uc;
	u8 *mac = vaddr->node.addr;
	u32 vport = vaddr->vport;
	int err;

	esw_uc = l2addr_hash_find(hash, mac, struct esw_uc_addr);
	if (esw_uc) {
524
525
		esw_warn(esw->dev,
			 "Failed to set L2 mac(%pM) for vport(%d), mac is already in use by vport(%d)\n",
526
			 mac, vport, esw_uc->vport);
527
528
529
		return -EEXIST;
	}

530
531
	esw_uc = l2addr_hash_add(hash, mac, struct esw_uc_addr, GFP_KERNEL);
	if (!esw_uc)
532
		return -ENOMEM;
533
	esw_uc->vport = vport;
534

535
	err = set_l2_table_entry(esw->dev, mac, 0, 0, &esw_uc->table_index);
536
	if (err)
537
538
539
540
541
542
543
544
545
546
		goto abort;

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

	esw_debug(esw->dev, "\tADDED UC MAC: vport[%d] %pM index:%d fr(%p)\n",
		  vport, mac, esw_uc->table_index, vaddr->flow_rule);
	return err;
abort:
	l2addr_hash_del(esw_uc);
547
548
549
	return err;
}

550
static int esw_del_uc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
551
{
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
	struct hlist_head *hash = esw->l2_table.l2_hash;
	struct esw_uc_addr *esw_uc;
	u8 *mac = vaddr->node.addr;
	u32 vport = vaddr->vport;

	esw_uc = l2addr_hash_find(hash, mac, struct esw_uc_addr);
	if (!esw_uc || esw_uc->vport != vport) {
		esw_debug(esw->dev,
			  "MAC(%pM) doesn't belong to vport (%d)\n",
			  mac, vport);
		return -EINVAL;
	}
	esw_debug(esw->dev, "\tDELETE UC MAC: vport[%d] %pM index:%d fr(%p)\n",
		  vport, mac, esw_uc->table_index, vaddr->flow_rule);

	del_l2_table_entry(esw->dev, esw_uc->table_index);

	if (vaddr->flow_rule)
570
		mlx5_del_flow_rule(vaddr->flow_rule);
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
	vaddr->flow_rule = NULL;

	l2addr_hash_del(esw_uc);
	return 0;
}

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;
	u32 vport = vaddr->vport;

	if (!esw->fdb_table.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, UPLINK_VPORT);
add:
	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;
	u32 vport = vaddr->vport;
614

615
616
617
618
619
620
621
	if (!esw->fdb_table.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)",
622
623
624
			 mac, vport);
		return -EINVAL;
	}
625
626
627
628
629
630
	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)
631
		mlx5_del_flow_rule(vaddr->flow_rule);
632
633
634
635
	vaddr->flow_rule = NULL;

	if (--esw_mc->refcnt)
		return 0;
636

637
	if (esw_mc->uplink_rule)
638
		mlx5_del_flow_rule(esw_mc->uplink_rule);
639
640

	l2addr_hash_del(esw_mc);
641
642
643
	return 0;
}

644
645
646
/* Apply vport UC/MC list to HW l2 table and FDB table */
static void esw_apply_vport_addr_list(struct mlx5_eswitch *esw,
				      u32 vport_num, int list_type)
647
648
{
	struct mlx5_vport *vport = &esw->vports[vport_num];
649
650
651
652
	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;
653
654
655
656
657
	struct l2addr_node *node;
	struct hlist_head *hash;
	struct hlist_node *tmp;
	int hi;

658
659
660
661
662
663
	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;
664
	for_each_l2hash_node(node, tmp, hash, hi) {
665
		addr = container_of(node, struct vport_addr, node);
666
667
		switch (addr->action) {
		case MLX5_ACTION_ADD:
668
			vport_addr_add(esw, addr);
669
670
671
			addr->action = MLX5_ACTION_NONE;
			break;
		case MLX5_ACTION_DEL:
672
			vport_addr_del(esw, addr);
673
674
675
676
677
678
			l2addr_hash_del(addr);
			break;
		}
	}
}

679
680
681
/* Sync vport UC/MC list from vport context */
static void esw_update_vport_addr_list(struct mlx5_eswitch *esw,
				       u32 vport_num, int list_type)
682
683
{
	struct mlx5_vport *vport = &esw->vports[vport_num];
684
	bool is_uc = list_type == MLX5_NVPRT_LIST_TYPE_UC;
685
	u8 (*mac_list)[ETH_ALEN];
686
687
	struct l2addr_node *node;
	struct vport_addr *addr;
688
689
690
691
692
693
694
	struct hlist_head *hash;
	struct hlist_node *tmp;
	int size;
	int err;
	int hi;
	int i;

695
696
	size = is_uc ? MLX5_MAX_UC_PER_VPORT(esw->dev) :
		       MLX5_MAX_MC_PER_VPORT(esw->dev);
697
698
699
700
701

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

702
	hash = is_uc ? vport->uc_list : vport->mc_list;
703
704

	for_each_l2hash_node(node, tmp, hash, hi) {
705
		addr = container_of(node, struct vport_addr, node);
706
707
708
		addr->action = MLX5_ACTION_DEL;
	}

709
710
711
	if (!vport->enabled)
		goto out;

712
	err = mlx5_query_nic_vport_mac_list(esw->dev, vport_num, list_type,
713
714
					    mac_list, &size);
	if (err)
715
		goto out;
716
717
	esw_debug(esw->dev, "vport[%d] context update %s list size (%d)\n",
		  vport_num, is_uc ? "UC" : "MC", size);
718
719

	for (i = 0; i < size; i++) {
720
		if (is_uc && !is_valid_ether_addr(mac_list[i]))
721
722
			continue;

723
724
725
726
		if (!is_uc && !is_multicast_ether_addr(mac_list[i]))
			continue;

		addr = l2addr_hash_find(hash, mac_list[i], struct vport_addr);
727
728
729
730
731
		if (addr) {
			addr->action = MLX5_ACTION_NONE;
			continue;
		}

732
		addr = l2addr_hash_add(hash, mac_list[i], struct vport_addr,
733
734
735
736
737
738
739
				       GFP_KERNEL);
		if (!addr) {
			esw_warn(esw->dev,
				 "Failed to add MAC(%pM) to vport[%d] DB\n",
				 mac_list[i], vport_num);
			continue;
		}
740
		addr->vport = vport_num;
741
742
		addr->action = MLX5_ACTION_ADD;
	}
743
out:
744
745
746
747
748
749
750
751
	kfree(mac_list);
}

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_core_dev *dev = vport->dev;
752
	struct mlx5_eswitch *esw = dev->priv.eswitch;
753
754
755
	u8 mac[ETH_ALEN];

	mlx5_query_nic_vport_mac_address(dev, vport->vport, mac);
756
757
758
759
760
761
762
763
764
	esw_debug(dev, "vport[%d] Context Changed: perm mac: %pM\n",
		  vport->vport, mac);

	if (vport->enabled_events & UC_ADDR_CHANGE) {
		esw_update_vport_addr_list(esw, vport->vport,
					   MLX5_NVPRT_LIST_TYPE_UC);
		esw_apply_vport_addr_list(esw, vport->vport,
					  MLX5_NVPRT_LIST_TYPE_UC);
	}
765

766
767
768
769
770
771
	if (vport->enabled_events & MC_ADDR_CHANGE) {
		esw_update_vport_addr_list(esw, vport->vport,
					   MLX5_NVPRT_LIST_TYPE_MC);
		esw_apply_vport_addr_list(esw, vport->vport,
					  MLX5_NVPRT_LIST_TYPE_MC);
	}
772

773
	esw_debug(esw->dev, "vport[%d] Context Changed: Done\n", vport->vport);
774
775
	if (vport->enabled)
		arm_vport_context_events_cmd(dev, vport->vport,
776
					     vport->enabled_events);
777
778
}

779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
static void esw_vport_enable_egress_acl(struct mlx5_eswitch *esw,
					struct mlx5_vport *vport)
{
	int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
	struct mlx5_flow_group *vlan_grp = NULL;
	struct mlx5_flow_group *drop_grp = NULL;
	struct mlx5_core_dev *dev = esw->dev;
	struct mlx5_flow_namespace *root_ns;
	struct mlx5_flow_table *acl;
	void *match_criteria;
	u32 *flow_group_in;
	/* The egress acl table contains 2 rules:
	 * 1)Allow traffic with vlan_tag=vst_vlan_id
	 * 2)Drop all other traffic.
	 */
	int table_size = 2;
	int err = 0;

797
798
	if (!MLX5_CAP_ESW_EGRESS_ACL(dev, ft_support) ||
	    !IS_ERR_OR_NULL(vport->egress.acl))
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
		return;

	esw_debug(dev, "Create vport[%d] egress ACL log_max_size(%d)\n",
		  vport->vport, MLX5_CAP_ESW_EGRESS_ACL(dev, log_max_ft_size));

	root_ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_ESW_EGRESS);
	if (!root_ns) {
		esw_warn(dev, "Failed to get E-Switch egress flow namespace\n");
		return;
	}

	flow_group_in = mlx5_vzalloc(inlen);
	if (!flow_group_in)
		return;

	acl = mlx5_create_vport_flow_table(root_ns, 0, table_size, 0, vport->vport);
	if (IS_ERR_OR_NULL(acl)) {
		err = PTR_ERR(acl);
		esw_warn(dev, "Failed to create E-Switch vport[%d] egress flow Table, err(%d)\n",
			 vport->vport, err);
		goto out;
	}

	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);
	MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.vlan_tag);
	MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.first_vid);
	MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0);
	MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, 0);

	vlan_grp = mlx5_create_flow_group(acl, flow_group_in);
	if (IS_ERR_OR_NULL(vlan_grp)) {
		err = PTR_ERR(vlan_grp);
		esw_warn(dev, "Failed to create E-Switch vport[%d] egress allowed vlans flow group, err(%d)\n",
			 vport->vport, err);
		goto out;
	}

	memset(flow_group_in, 0, inlen);
	MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 1);
	MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, 1);
	drop_grp = mlx5_create_flow_group(acl, flow_group_in);
	if (IS_ERR_OR_NULL(drop_grp)) {
		err = PTR_ERR(drop_grp);
		esw_warn(dev, "Failed to create E-Switch vport[%d] egress drop flow group, err(%d)\n",
			 vport->vport, err);
		goto out;
	}

	vport->egress.acl = acl;
	vport->egress.drop_grp = drop_grp;
	vport->egress.allowed_vlans_grp = vlan_grp;
out:
	kfree(flow_group_in);
	if (err && !IS_ERR_OR_NULL(vlan_grp))
		mlx5_destroy_flow_group(vlan_grp);
	if (err && !IS_ERR_OR_NULL(acl))
		mlx5_destroy_flow_table(acl);
}

859
860
861
862
863
864
865
866
867
868
869
870
871
static void esw_vport_cleanup_egress_rules(struct mlx5_eswitch *esw,
					   struct mlx5_vport *vport)
{
	if (!IS_ERR_OR_NULL(vport->egress.allowed_vlan))
		mlx5_del_flow_rule(vport->egress.allowed_vlan);

	if (!IS_ERR_OR_NULL(vport->egress.drop_rule))
		mlx5_del_flow_rule(vport->egress.drop_rule);

	vport->egress.allowed_vlan = NULL;
	vport->egress.drop_rule = NULL;
}

872
873
874
875
876
877
878
879
static void esw_vport_disable_egress_acl(struct mlx5_eswitch *esw,
					 struct mlx5_vport *vport)
{
	if (IS_ERR_OR_NULL(vport->egress.acl))
		return;

	esw_debug(esw->dev, "Destroy vport[%d] E-Switch egress ACL\n", vport->vport);

880
	esw_vport_cleanup_egress_rules(esw, vport);
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
	mlx5_destroy_flow_group(vport->egress.allowed_vlans_grp);
	mlx5_destroy_flow_group(vport->egress.drop_grp);
	mlx5_destroy_flow_table(vport->egress.acl);
	vport->egress.allowed_vlans_grp = NULL;
	vport->egress.drop_grp = NULL;
	vport->egress.acl = NULL;
}

static void esw_vport_enable_ingress_acl(struct mlx5_eswitch *esw,
					 struct mlx5_vport *vport)
{
	int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
	struct mlx5_core_dev *dev = esw->dev;
	struct mlx5_flow_namespace *root_ns;
	struct mlx5_flow_table *acl;
	struct mlx5_flow_group *g;
	void *match_criteria;
	u32 *flow_group_in;
	/* The ingress acl table contains 4 groups
	 * (2 active rules at the same time -
	 *      1 allow rule from one of the first 3 groups.
	 *      1 drop rule from the last group):
	 * 1)Allow untagged traffic with smac=original mac.
	 * 2)Allow untagged traffic.
	 * 3)Allow traffic with smac=original mac.
	 * 4)Drop all other traffic.
	 */
	int table_size = 4;
	int err = 0;

911
912
	if (!MLX5_CAP_ESW_INGRESS_ACL(dev, ft_support) ||
	    !IS_ERR_OR_NULL(vport->ingress.acl))
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
		return;

	esw_debug(dev, "Create vport[%d] ingress ACL log_max_size(%d)\n",
		  vport->vport, MLX5_CAP_ESW_INGRESS_ACL(dev, log_max_ft_size));

	root_ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_ESW_INGRESS);
	if (!root_ns) {
		esw_warn(dev, "Failed to get E-Switch ingress flow namespace\n");
		return;
	}

	flow_group_in = mlx5_vzalloc(inlen);
	if (!flow_group_in)
		return;

	acl = mlx5_create_vport_flow_table(root_ns, 0, table_size, 0, vport->vport);
	if (IS_ERR_OR_NULL(acl)) {
		err = PTR_ERR(acl);
		esw_warn(dev, "Failed to create E-Switch vport[%d] ingress flow Table, err(%d)\n",
			 vport->vport, err);
		goto out;
	}
	vport->ingress.acl = acl;

	match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in, match_criteria);

	MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS);
	MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.vlan_tag);
	MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.smac_47_16);
	MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.smac_15_0);
	MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0);
	MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, 0);

	g = mlx5_create_flow_group(acl, flow_group_in);
	if (IS_ERR_OR_NULL(g)) {
		err = PTR_ERR(g);
		esw_warn(dev, "Failed to create E-Switch vport[%d] ingress untagged spoofchk flow group, err(%d)\n",
			 vport->vport, err);
		goto out;
	}
	vport->ingress.allow_untagged_spoofchk_grp = g;

	memset(flow_group_in, 0, inlen);
	MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS);
	MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.vlan_tag);
	MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 1);
	MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, 1);

	g = mlx5_create_flow_group(acl, flow_group_in);
	if (IS_ERR_OR_NULL(g)) {
		err = PTR_ERR(g);
		esw_warn(dev, "Failed to create E-Switch vport[%d] ingress untagged flow group, err(%d)\n",
			 vport->vport, err);
		goto out;
	}
	vport->ingress.allow_untagged_only_grp = g;

	memset(flow_group_in, 0, inlen);
	MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS);
	MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.smac_47_16);
	MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.smac_15_0);
	MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 2);
	MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, 2);

	g = mlx5_create_flow_group(acl, flow_group_in);
	if (IS_ERR_OR_NULL(g)) {
		err = PTR_ERR(g);
		esw_warn(dev, "Failed to create E-Switch vport[%d] ingress spoofchk flow group, err(%d)\n",
			 vport->vport, err);
		goto out;
	}
	vport->ingress.allow_spoofchk_only_grp = g;

	memset(flow_group_in, 0, inlen);
	MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 3);
	MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, 3);

	g = mlx5_create_flow_group(acl, flow_group_in);
	if (IS_ERR_OR_NULL(g)) {
		err = PTR_ERR(g);
		esw_warn(dev, "Failed to create E-Switch vport[%d] ingress drop flow group, err(%d)\n",
			 vport->vport, err);
		goto out;
	}
	vport->ingress.drop_grp = g;

out:
	if (err) {
		if (!IS_ERR_OR_NULL(vport->ingress.allow_spoofchk_only_grp))
			mlx5_destroy_flow_group(
					vport->ingress.allow_spoofchk_only_grp);
		if (!IS_ERR_OR_NULL(vport->ingress.allow_untagged_only_grp))
			mlx5_destroy_flow_group(
					vport->ingress.allow_untagged_only_grp);
		if (!IS_ERR_OR_NULL(vport->ingress.allow_untagged_spoofchk_grp))
			mlx5_destroy_flow_group(
				vport->ingress.allow_untagged_spoofchk_grp);
		if (!IS_ERR_OR_NULL(vport->ingress.acl))
			mlx5_destroy_flow_table(vport->ingress.acl);
	}

	kfree(flow_group_in);
}

1017
1018
1019
1020
1021
static void esw_vport_cleanup_ingress_rules(struct mlx5_eswitch *esw,
					    struct mlx5_vport *vport)
{
	if (!IS_ERR_OR_NULL(vport->ingress.drop_rule))
		mlx5_del_flow_rule(vport->ingress.drop_rule);
1022
1023
1024
1025

	if (!IS_ERR_OR_NULL(vport->ingress.allow_rule))
		mlx5_del_flow_rule(vport->ingress.allow_rule);

1026
	vport->ingress.drop_rule = NULL;
1027
	vport->ingress.allow_rule = NULL;
1028
1029
}

1030
1031
1032
1033
1034
1035
1036
1037
static void esw_vport_disable_ingress_acl(struct mlx5_eswitch *esw,
					  struct mlx5_vport *vport)
{
	if (IS_ERR_OR_NULL(vport->ingress.acl))
		return;

	esw_debug(esw->dev, "Destroy vport[%d] E-Switch ingress ACL\n", vport->vport);

1038
	esw_vport_cleanup_ingress_rules(esw, vport);
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
	mlx5_destroy_flow_group(vport->ingress.allow_spoofchk_only_grp);
	mlx5_destroy_flow_group(vport->ingress.allow_untagged_only_grp);
	mlx5_destroy_flow_group(vport->ingress.allow_untagged_spoofchk_grp);
	mlx5_destroy_flow_group(vport->ingress.drop_grp);
	mlx5_destroy_flow_table(vport->ingress.acl);
	vport->ingress.acl = NULL;
	vport->ingress.drop_grp = NULL;
	vport->ingress.allow_spoofchk_only_grp = NULL;
	vport->ingress.allow_untagged_only_grp = NULL;
	vport->ingress.allow_untagged_spoofchk_grp = NULL;
}

1051
1052
1053
static int esw_vport_ingress_config(struct mlx5_eswitch *esw,
				    struct mlx5_vport *vport)
{
1054
	u8 smac[ETH_ALEN];
1055
1056
1057
	u32 *match_v;
	u32 *match_c;
	int err = 0;
1058
	u8 *smac_v;
1059

1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
	if (vport->spoofchk) {
		err = mlx5_query_nic_vport_mac_address(esw->dev, vport->vport, smac);
		if (err) {
			esw_warn(esw->dev,
				 "vport[%d] configure ingress rules failed, query smac failed, err(%d)\n",
				 vport->vport, err);
			return err;
		}

		if (!is_valid_ether_addr(smac)) {
			mlx5_core_warn(esw->dev,
				       "vport[%d] configure ingress rules failed, illegal mac with spoofchk\n",
				       vport->vport);
			return -EPERM;
		}
	}

1077
1078
	esw_vport_cleanup_ingress_rules(esw, vport);

1079
1080
	if (!vport->vlan && !vport->qos && !vport->spoofchk) {
		esw_vport_disable_ingress_acl(esw, vport);
1081
		return 0;
1082
1083
1084
	}

	esw_vport_enable_ingress_acl(esw, vport);
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098

	esw_debug(esw->dev,
		  "vport[%d] configure ingress rules, vlan(%d) qos(%d)\n",
		  vport->vport, vport->vlan, vport->qos);

	match_v = kzalloc(MLX5_ST_SZ_BYTES(fte_match_param), GFP_KERNEL);
	match_c = kzalloc(MLX5_ST_SZ_BYTES(fte_match_param), GFP_KERNEL);
	if (!match_v || !match_c) {
		err = -ENOMEM;
		esw_warn(esw->dev, "vport[%d] configure ingress rules failed, err(%d)\n",
			 vport->vport, err);
		goto out;
	}

1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
	if (vport->vlan || vport->qos)
		MLX5_SET_TO_ONES(fte_match_param, match_c, outer_headers.vlan_tag);

	if (vport->spoofchk) {
		MLX5_SET_TO_ONES(fte_match_param, match_c, outer_headers.smac_47_16);
		MLX5_SET_TO_ONES(fte_match_param, match_c, outer_headers.smac_15_0);
		smac_v = MLX5_ADDR_OF(fte_match_param,
				      match_v,
				      outer_headers.smac_47_16);
		ether_addr_copy(smac_v, smac);
	}

	vport->ingress.allow_rule =
1112
1113
1114
1115
		mlx5_add_flow_rule(vport->ingress.acl,
				   MLX5_MATCH_OUTER_HEADERS,
				   match_c,
				   match_v,
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
				   MLX5_FLOW_CONTEXT_ACTION_ALLOW,
				   0, NULL);
	if (IS_ERR_OR_NULL(vport->ingress.allow_rule)) {
		err = PTR_ERR(vport->ingress.allow_rule);
		pr_warn("vport[%d] configure ingress allow rule, err(%d)\n",
			vport->vport, err);
		vport->ingress.allow_rule = NULL;
		goto out;
	}

	memset(match_c, 0, MLX5_ST_SZ_BYTES(fte_match_param));
	memset(match_v, 0, MLX5_ST_SZ_BYTES(fte_match_param));
	vport->ingress.drop_rule =
		mlx5_add_flow_rule(vport->ingress.acl,
				   0,
				   match_c,
				   match_v,
1133
1134
1135
1136
				   MLX5_FLOW_CONTEXT_ACTION_DROP,
				   0, NULL);
	if (IS_ERR_OR_NULL(vport->ingress.drop_rule)) {
		err = PTR_ERR(vport->ingress.drop_rule);
1137
		pr_warn("vport[%d] configure ingress drop rule, err(%d)\n",
1138
1139
			vport->vport, err);
		vport->ingress.drop_rule = NULL;
1140
		goto out;
1141
	}
1142

1143
out:
1144
1145
1146
	if (err)
		esw_vport_cleanup_ingress_rules(esw, vport);

1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
	kfree(match_v);
	kfree(match_c);
	return err;
}

static int esw_vport_egress_config(struct mlx5_eswitch *esw,
				   struct mlx5_vport *vport)
{
	u32 *match_v;
	u32 *match_c;
	int err = 0;

	esw_vport_cleanup_egress_rules(esw, vport);

1161
1162
	if (!vport->vlan && !vport->qos) {
		esw_vport_disable_egress_acl(esw, vport);
1163
		return 0;
1164
1165
1166
	}

	esw_vport_enable_egress_acl(esw, vport);
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223

	esw_debug(esw->dev,
		  "vport[%d] configure egress rules, vlan(%d) qos(%d)\n",
		  vport->vport, vport->vlan, vport->qos);

	match_v = kzalloc(MLX5_ST_SZ_BYTES(fte_match_param), GFP_KERNEL);
	match_c = kzalloc(MLX5_ST_SZ_BYTES(fte_match_param), GFP_KERNEL);
	if (!match_v || !match_c) {
		err = -ENOMEM;
		esw_warn(esw->dev, "vport[%d] configure egress rules failed, err(%d)\n",
			 vport->vport, err);
		goto out;
	}

	/* Allowed vlan rule */
	MLX5_SET_TO_ONES(fte_match_param, match_c, outer_headers.vlan_tag);
	MLX5_SET_TO_ONES(fte_match_param, match_v, outer_headers.vlan_tag);
	MLX5_SET_TO_ONES(fte_match_param, match_c, outer_headers.first_vid);
	MLX5_SET(fte_match_param, match_v, outer_headers.first_vid, vport->vlan);

	vport->egress.allowed_vlan =
		mlx5_add_flow_rule(vport->egress.acl,
				   MLX5_MATCH_OUTER_HEADERS,
				   match_c,
				   match_v,
				   MLX5_FLOW_CONTEXT_ACTION_ALLOW,
				   0, NULL);
	if (IS_ERR_OR_NULL(vport->egress.allowed_vlan)) {
		err = PTR_ERR(vport->egress.allowed_vlan);
		pr_warn("vport[%d] configure egress allowed vlan rule failed, err(%d)\n",
			vport->vport, err);
		vport->egress.allowed_vlan = NULL;
		goto out;
	}

	/* Drop others rule (star rule) */
	memset(match_c, 0, MLX5_ST_SZ_BYTES(fte_match_param));
	memset(match_v, 0, MLX5_ST_SZ_BYTES(fte_match_param));
	vport->egress.drop_rule =
		mlx5_add_flow_rule(vport->egress.acl,
				   0,
				   match_c,
				   match_v,
				   MLX5_FLOW_CONTEXT_ACTION_DROP,
				   0, NULL);
	if (IS_ERR_OR_NULL(vport->egress.drop_rule)) {
		err = PTR_ERR(vport->egress.drop_rule);
		pr_warn("vport[%d] configure egress drop rule failed, err(%d)\n",
			vport->vport, err);
		vport->egress.drop_rule = NULL;
	}
out:
	kfree(match_v);
	kfree(match_c);
	return err;
}

1224
1225
static void esw_enable_vport(struct mlx5_eswitch *esw, int vport_num,
			     int enable_events)
1226
1227
1228
{
	struct mlx5_vport *vport = &esw->vports[vport_num];

1229
	mutex_lock(&esw->state_lock);
1230
1231
1232
	WARN_ON(vport->enabled);

	esw_debug(esw->dev, "Enabling VPORT(%d)\n", vport_num);
1233
1234

	if (vport_num) { /* Only VFs need ACLs for VST and spoofchk filtering */
1235
1236
		esw_vport_ingress_config(esw, vport);
		esw_vport_egress_config(esw, vport);
1237
1238
	}

1239
1240
1241
1242
1243
1244
1245
1246
1247
	mlx5_modify_vport_admin_state(esw->dev,
				      MLX5_QUERY_VPORT_STATE_IN_OP_MOD_ESW_VPORT,
				      vport_num,
				      MLX5_ESW_VPORT_ADMIN_STATE_AUTO);

	/* Sync with current vport context */
	vport->enabled_events = enable_events;
	esw_vport_change_handler(&vport->vport_change_handler);

1248
1249
	vport->enabled = true;

1250
1251
1252
1253
	arm_vport_context_events_cmd(esw->dev, vport_num, enable_events);

	esw->enabled_vports++;
	esw_debug(esw->dev, "Enabled VPORT(%d)\n", vport_num);
1254
	mutex_unlock(&esw->state_lock);
1255
1256
}

1257
1258
1259
1260
1261
1262
1263
static void esw_disable_vport(struct mlx5_eswitch *esw, int vport_num)
{
	struct mlx5_vport *vport = &esw->vports[vport_num];

	if (!vport->enabled)
		return;

1264
	esw_debug(esw->dev, "Disabling vport(%d)\n", vport_num);
1265
1266
	/* Mark this vport as disabled to discard new events */
	vport->enabled = false;
1267
1268

	synchronize_irq(mlx5_get_msix_vec(esw->dev, MLX5_EQ_VEC_ASYNC));
1269

1270
1271
1272
1273
	mlx5_modify_vport_admin_state(esw->dev,
				      MLX5_QUERY_VPORT_STATE_IN_OP_MOD_ESW_VPORT,
				      vport_num,
				      MLX5_ESW_VPORT_ADMIN_STATE_DOWN);
1274
1275
1276
1277
	/* Wait for current already scheduled events to complete */
	flush_workqueue(esw->work_queue);
	/* Disable events from this vport */
	arm_vport_context_events_cmd(esw->dev, vport->vport, 0);
1278
	mutex_lock(&esw->state_lock);
1279
1280
1281
1282
1283
1284
	/* 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_handler(&vport->vport_change_handler);
	vport->enabled_events = 0;
1285
1286
1287
1288
	if (vport_num) {
		esw_vport_disable_egress_acl(esw, vport);
		esw_vport_disable_ingress_acl(esw, vport);
	}
1289
	esw->enabled_vports--;
1290
	mutex_unlock(&esw->state_lock);
1291
1292
1293
}

/* Public E-Switch API */
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
int mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs)
{
	int err;
	int i;

	if (!esw || !MLX5_CAP_GEN(esw->dev, vport_group_manager) ||
	    MLX5_CAP_GEN(esw->dev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
		return 0;

	if (!MLX5_CAP_GEN(esw->dev, eswitch_flow_table) ||
	    !MLX5_CAP_ESW_FLOWTABLE_FDB(esw->dev, ft_support)) {
		esw_warn(esw->dev, "E-Switch FDB is not supported, aborting ...\n");
		return -ENOTSUPP;
	}

1309
1310
1311
1312
1313
1314
	if (!MLX5_CAP_ESW_INGRESS_ACL(esw->dev, ft_support))
		esw_warn(esw->dev, "E-Switch ingress ACL is not supported by FW\n");

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

1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
	esw_info(esw->dev, "E-Switch enable SRIOV: nvfs(%d)\n", nvfs);

	esw_disable_vport(esw, 0);

	err = esw_create_fdb_table(esw, nvfs + 1);
	if (err)
		goto abort;

	for (i = 0; i <= nvfs; i++)
		esw_enable_vport(esw, i, SRIOV_VPORT_EVENTS);

	esw_info(esw->dev, "SRIOV enabled: active vports(%d)\n",
		 esw->enabled_vports);
	return 0;

abort:
	esw_enable_vport(esw, 0, UC_ADDR_CHANGE);
	return err;
}

void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw)
{
	int i;

	if (!esw || !MLX5_CAP_GEN(esw->dev, vport_group_manager) ||
	    MLX5_CAP_GEN(esw->dev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
		return;

	esw_info(esw->dev, "disable SRIOV: active vports(%d)\n",
		 esw->enabled_vports);

	for (i = 0; i < esw->total_vports; i++)
		esw_disable_vport(esw, i);

	esw_destroy_fdb_table(esw);

	/* VPORT 0 (PF) must be enabled back with non-sriov configuration */
	esw_enable_vport(esw, 0, UC_ADDR_CHANGE);
}

1355
1356
1357
int mlx5_eswitch_init(struct mlx5_core_dev *dev)
{
	int l2_table_size = 1 << MLX5_CAP_GEN(dev, log_max_l2_table);
1358
	int total_vports = MLX5_TOTAL_VPORTS(dev);
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
	struct mlx5_eswitch *esw;
	int vport_num;
	int err;

	if (!MLX5_CAP_GEN(dev, vport_group_manager) ||
	    MLX5_CAP_GEN(dev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
		return 0;

	esw_info(dev,
		 "Total vports %d, l2 table size(%d), per vport: max uc(%d) max mc(%d)\n",
		 total_vports, l2_table_size,
		 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->l2_table.bitmap = kcalloc(BITS_TO_LONGS(l2_table_size),
				   sizeof(uintptr_t), GFP_KERNEL);
	if (!esw->l2_table.bitmap) {
		err = -ENOMEM;
		goto abort;
	}
	esw->l2_table.size = l2_table_size;

	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;
	}

1400
1401
	mutex_init(&esw->state_lock);

1402
1403
1404
1405
1406
1407
1408
1409
1410
	for (vport_num = 0; vport_num < total_vports; vport_num++) {
		struct mlx5_vport *vport = &esw->vports[vport_num];

		vport->vport = vport_num;
		vport->dev = dev;
		INIT_WORK(&vport->vport_change_handler,
			  esw_vport_change_handler);
	}

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	esw->total_vports = total_vports;
	esw->enabled_vports = 0;
1413

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	dev->priv.eswitch = esw;
	esw_enable_vport(esw, 0, UC_ADDR_CHANGE);
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	/* VF Vports will be enabled when SRIOV is enabled */
	return 0;
abort:
	if (esw->work_queue)
		destroy_workqueue(esw->work_queue);
	kfree(esw->l2_table.bitmap);
	kfree(esw->vports);
	kfree(esw);
	return err;
}

void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw)
{
	if (!esw || !MLX5_CAP_GEN(esw->dev, vport_group_manager) ||
	    MLX5_CAP_GEN(esw->dev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
		return;

	esw_info(esw->dev, "cleanup\n");
	esw_disable_vport(esw, 0);

	esw->dev->priv.eswitch = NULL;
	destroy_workqueue(esw->work_queue);
	kfree(esw->l2_table.bitmap);
	kfree(esw->vports);
	kfree(esw);
}

void mlx5_eswitch_vport_event(struct mlx5_eswitch *esw, struct mlx5_eqe *eqe)
{
	struct mlx5_eqe_vport_change *vc_eqe = &eqe->data.vport_change;
	u16 vport_num = be16_to_cpu(vc_eqe->vport_num);
	struct mlx5_vport *vport;

	if (!esw) {
		pr_warn("MLX5 E-Switch: vport %d got an event while eswitch is not initialized\n",
			vport_num);
		return;
	}

	vport = &esw->vports[vport_num];
	if (vport->enabled)
		queue_work(esw->work_queue, &vport->vport_change_handler);
}
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/* Vport Administration */
#define ESW_ALLOWED(esw) \
	(esw && MLX5_CAP_GEN(esw->dev, vport_group_manager) && mlx5_core_is_pf(esw->dev))
#define LEGAL_VPORT(esw, vport) (vport >= 0 && vport < esw->total_vports)

int mlx5_eswitch_set_vport_mac(struct mlx5_eswitch *esw,
			       int vport, u8 mac[ETH_ALEN])
{
	int err = 0;
1469
	struct mlx5_vport *evport;
1470
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	if (!ESW_ALLOWED(esw))
		return -EPERM;
	if (!LEGAL_VPORT(esw, vport))
		return -EINVAL;

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	evport = &esw->vports[vport];

	if (evport->spoofchk && !is_valid_ether_addr(mac)) {
		mlx5_core_warn(esw->dev,
			       "MAC invalidation is not allowed when spoofchk is on, vport(%d)\n",
			       vport);
		return -EPERM;
	}

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

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	mutex_lock(&esw->state_lock);
	if (evport->enabled)
		err = esw_vport_ingress_config(esw, evport);
	mutex_unlock(&esw->state_lock);

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	return err;
}

int mlx5_eswitch_set_vport_state(struct mlx5_eswitch *esw,
				 int vport, int link_state)
{
	if (!ESW_ALLOWED(esw))
		return -EPERM;
	if (!LEGAL_VPORT(esw, vport))
		return -EINVAL;

	return mlx5_modify_vport_admin_state(esw->dev,
					     MLX5_QUERY_VPORT_STATE_IN_OP_MOD_ESW_VPORT,
					     vport, link_state);
}

int mlx5_eswitch_get_vport_config(struct mlx5_eswitch *esw,
				  int vport, struct ifla_vf_info *ivi)
{
1517
	struct mlx5_vport *evport;
1518
1519
1520
	u16 vlan;
	u8 qos;

1521
1522
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	if (!ESW_ALLOWED(esw))
		return -EPERM;
	if (!LEGAL_VPORT(esw, vport))
		return -EINVAL;

1526
1527
	evport = &esw->vports[vport];

1528
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	memset(ivi, 0, sizeof(*ivi));
	ivi->vf = vport - 1;

	mlx5_query_nic_vport_mac_address(esw->dev, vport, ivi->mac);
	ivi->linkstate = mlx5_query_vport_admin_state(esw->dev,
						      MLX5_QUERY_VPORT_STATE_IN_OP_MOD_ESW_VPORT,
						      vport);
1535
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	query_esw_vport_cvlan(esw->dev, vport, &vlan, &qos);
	ivi->vlan = vlan;
	ivi->qos = qos;
1538
	ivi->spoofchk = evport->spoofchk;
1539
1540
1541

	return 0;
}
1542
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1545

int mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw,
				int vport, u16 vlan, u8 qos)
{
1546
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	struct mlx5_vport *evport;
	int err = 0;
1548
1549
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1554
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	int set = 0;

	if (!ESW_ALLOWED(esw))
		return -EPERM;
	if (!LEGAL_VPORT(esw, vport) || (vlan > 4095) || (qos > 7))
		return -EINVAL;

	if (vlan || qos)
		set = 1;

1558
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	evport = &esw->vports[vport];

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

	mutex_lock(&esw->state_lock);
	evport->vlan = vlan;
	evport->qos = qos;
	if (evport->enabled) {
		err = esw_vport_ingress_config(esw, evport);
		if (err)
			goto out;
		err = esw_vport_egress_config(esw, evport);
	}

out:
	mutex_unlock(&esw->state_lock);
	return err;
1577
}
1578

1579
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int mlx5_eswitch_set_vport_spoofchk(struct mlx5_eswitch *esw,
				    int vport, bool spoofchk)
{
	struct mlx5_vport *evport;
	bool pschk;
	int err = 0;

	if (!ESW_ALLOWED(esw))
		return -EPERM;
	if (!LEGAL_VPORT(esw, vport))
		return -EINVAL;

	evport = &esw->vports[vport];

	mutex_lock(&esw->state_lock);
	pschk = evport->spoofchk;
	evport->spoofchk = spoofchk;
	if (evport->enabled)
		err = esw_vport_ingress_config(esw, evport);
	if (err)
		evport->spoofchk = pschk;
	mutex_unlock(&esw->state_lock);

	return err;
}

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int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw,
				 int vport,
				 struct ifla_vf_stats *vf_stats)
{
	int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out);
	u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)];
	int err = 0;
	u32 *out;

	if (!ESW_ALLOWED(esw))
		return -EPERM;
	if (!LEGAL_VPORT(esw, vport))
		return -EINVAL;

	out = mlx5_vzalloc(outlen);
	if (!out)
		return -ENOMEM;

	memset(in, 0, sizeof(in));

	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);
	if (vport)
		MLX5_SET(query_vport_counter_in, in, other_vport, 1);

	memset(out, 0, outlen);
	err = mlx5_cmd_exec(esw->dev, in, sizeof(in), out, outlen);
	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_eth_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_eth_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_eth_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_eth_multicast.octets) +
		MLX5_GET_CTR(out, transmitted_eth_broadcast.octets);

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

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

free_out:
	kvfree(out);
	return err;
}