LXR linux/include/linux/mlx5/fs.h

   1/*
   2 * Copyright (c) 2015, Mellanox Technologies. All rights reserved.
   3 *
   4 * This software is available to you under a choice of one of two
   5 * licenses.  You may choose to be licensed under the terms of the GNU
   6 * General Public License (GPL) Version 2, available from the file
   7 * COPYING in the main directory of this source tree, or the
   8 * OpenIB.org BSD license below:
   9 *
  10 *     Redistribution and use in source and binary forms, with or
  11 *     without modification, are permitted provided that the following
  12 *     conditions are met:
  13 *
  14 *      - Redistributions of source code must retain the above
  15 *        copyright notice, this list of conditions and the following
  16 *        disclaimer.
  17 *
  18 *      - Redistributions in binary form must reproduce the above
  19 *        copyright notice, this list of conditions and the following
  20 *        disclaimer in the documentation and/or other materials
  21 *        provided with the distribution.
  22 *
  23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30 * SOFTWARE.
  31 */
  32
  33#ifndef _MLX5_FS_
  34#define _MLX5_FS_
  35
  36#include <linux/mlx5/driver.h>
  37#include <linux/mlx5/mlx5_ifc.h>
  38
  39#define MLX5_FS_DEFAULT_FLOW_TAG 0x0
  40
  41enum {
  42        MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO  = 1 << 16,
  43};
  44
  45#define LEFTOVERS_RULE_NUM       2
  46static inline void build_leftovers_ft_param(int *priority,
  47                                            int *n_ent,
  48                                            int *n_grp)
  49{
  50        *priority = 0; /* Priority of leftovers_prio-0 */
  51        *n_ent = LEFTOVERS_RULE_NUM;
  52        *n_grp = LEFTOVERS_RULE_NUM;
  53}
  54
  55enum mlx5_flow_namespace_type {
  56        MLX5_FLOW_NAMESPACE_BYPASS,
  57        MLX5_FLOW_NAMESPACE_KERNEL,
  58        MLX5_FLOW_NAMESPACE_LEFTOVERS,
  59        MLX5_FLOW_NAMESPACE_ANCHOR,
  60        MLX5_FLOW_NAMESPACE_FDB,
  61};
  62
  63struct mlx5_flow_table;
  64struct mlx5_flow_group;
  65struct mlx5_flow_rule;
  66struct mlx5_flow_namespace;
  67
  68struct mlx5_flow_destination {
  69        enum mlx5_flow_destination_type type;
  70        union {
  71                u32                     tir_num;
  72                struct mlx5_flow_table  *ft;
  73                u32                     vport_num;
  74        };
  75};
  76
  77struct mlx5_flow_namespace *
  78mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
  79                        enum mlx5_flow_namespace_type type);
  80
  81struct mlx5_flow_table *
  82mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
  83                                    int prio,
  84                                    int num_flow_table_entries,
  85                                    int max_num_groups);
  86
  87struct mlx5_flow_table *
  88mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
  89                       int prio,
  90                       int num_flow_table_entries);
  91int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
  92
  93/* inbox should be set with the following values:
  94 * start_flow_index
  95 * end_flow_index
  96 * match_criteria_enable
  97 * match_criteria
  98 */
  99struct mlx5_flow_group *
 100mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
 101void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
 102
 103/* Single destination per rule.
 104 * Group ID is implied by the match criteria.
 105 */
 106struct mlx5_flow_rule *
 107mlx5_add_flow_rule(struct mlx5_flow_table *ft,
 108                   u8 match_criteria_enable,
 109                   u32 *match_criteria,
 110                   u32 *match_value,
 111                   u32 action,
 112                   u32 flow_tag,
 113                   struct mlx5_flow_destination *dest);
 114void mlx5_del_flow_rule(struct mlx5_flow_rule *fr);
 115
 116#endif
 117