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_LAG,
  58         MLX5_FLOW_NAMESPACE_OFFLOADS,
  59         MLX5_FLOW_NAMESPACE_ETHTOOL,
  60         MLX5_FLOW_NAMESPACE_KERNEL,
  61         MLX5_FLOW_NAMESPACE_LEFTOVERS,
  62         MLX5_FLOW_NAMESPACE_ANCHOR,
  63         MLX5_FLOW_NAMESPACE_FDB,
  64         MLX5_FLOW_NAMESPACE_ESW_EGRESS,
  65         MLX5_FLOW_NAMESPACE_ESW_INGRESS,
  66         MLX5_FLOW_NAMESPACE_SNIFFER_RX,
  67         MLX5_FLOW_NAMESPACE_SNIFFER_TX,
  68 };
  69
  70 struct mlx5_flow_table;
  71 struct mlx5_flow_group;
  72 struct mlx5_flow_rule;
  73 struct mlx5_flow_namespace;
  74
  75 struct mlx5_flow_spec {
  76         u8   match_criteria_enable;
  77         u32  match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
  78         u32  match_value[MLX5_ST_SZ_DW(fte_match_param)];
  79 };
  80
  81 struct mlx5_flow_destination {
  82         enum mlx5_flow_destination_type type;
  83         union {
  84                 u32                     tir_num;
  85                 struct mlx5_flow_table  *ft;
  86                 u32                     vport_num;
  87                 struct mlx5_fc          *counter;
  88         };
  89 };
  90
  91 struct mlx5_flow_namespace *
  92 mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
  93                         enum mlx5_flow_namespace_type type);
  94
  95 struct mlx5_flow_table *
  96 mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
  97                                     int prio,
  98                                     int num_flow_table_entries,
  99                                     int max_num_groups,
 100                                     u32 level);
 101
 102 struct mlx5_flow_table *
 103 mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
 104                        int prio,
 105                        int num_flow_table_entries,
 106                        u32 level);
 107 struct mlx5_flow_table *
 108 mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
 109                              int prio,
 110                              int num_flow_table_entries,
 111                              u32 level, u16 vport);
 112 struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
 113                                                struct mlx5_flow_namespace *ns,
 114                                                int prio, u32 level);
 115 int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
 116
 117 /* inbox should be set with the following values:
 118  * start_flow_index
 119  * end_flow_index
 120  * match_criteria_enable
 121  * match_criteria
 122  */
 123 struct mlx5_flow_group *
 124 mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
 125 void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
 126
 127 /* Single destination per rule.
 128  * Group ID is implied by the match criteria.
 129  */
 130 struct mlx5_flow_rule *
 131 mlx5_add_flow_rule(struct mlx5_flow_table *ft,
 132                    struct mlx5_flow_spec *spec,
 133                    u32 action,
 134                    u32 flow_tag,
 135                    struct mlx5_flow_destination *dest);
 136 void mlx5_del_flow_rule(struct mlx5_flow_rule *fr);
 137
 138 int mlx5_modify_rule_destination(struct mlx5_flow_rule *rule,
 139                                  struct mlx5_flow_destination *dest);
 140
 141 struct mlx5_fc *mlx5_flow_rule_counter(struct mlx5_flow_rule *rule);
 142 struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
 143 void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
 144 void mlx5_fc_query_cached(struct mlx5_fc *counter,
 145                           u64 *bytes, u64 *packets, u64 *lastuse);
 146
 147 #endif