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
  41 enum {
  42         MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO  = 1 << 16,
  43 };
  44
  45 #define LEFTOVERS_RULE_NUM       2
  46 static 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
  55 enum 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
  63 struct mlx5_flow_table;
  64 struct mlx5_flow_group;
  65 struct mlx5_flow_rule;
  66 struct mlx5_flow_namespace;
  67
  68 struct 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
  77 struct mlx5_flow_namespace *
  78 mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
  79                         enum mlx5_flow_namespace_type type);
  80
  81 struct mlx5_flow_table *
  82 mlx5_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
  87 struct mlx5_flow_table *
  88 mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
  89                        int prio,
  90                        int num_flow_table_entries);
  91 int 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  */
  99 struct mlx5_flow_group *
 100 mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
 101 void 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  */
 106 struct mlx5_flow_rule *
 107 mlx5_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);
 114 void mlx5_del_flow_rule(struct mlx5_flow_rule *fr);
 115
 116 #endif