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_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
  70struct mlx5_flow_table;
  71struct mlx5_flow_group;
  72struct mlx5_flow_rule;
  73struct mlx5_flow_namespace;
  74
  75struct 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
  81struct 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
  91struct mlx5_flow_namespace *
  92mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
  93                        enum mlx5_flow_namespace_type type);
  94
  95struct mlx5_flow_table *
  96mlx5_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
 102struct mlx5_flow_table *
 103mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
 104                       int prio,
 105                       int num_flow_table_entries,
 106                       u32 level);
 107struct mlx5_flow_table *
 108mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
 109                             int prio,
 110                             int num_flow_table_entries,
 111                             u32 level, u16 vport);
 112struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
 113                                               struct mlx5_flow_namespace *ns,
 114                                               int prio, u32 level);
 115int 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 */
 123struct mlx5_flow_group *
 124mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
 125void 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 */
 130struct mlx5_flow_rule *
 131mlx5_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);
 136void mlx5_del_flow_rule(struct mlx5_flow_rule *fr);
 137
 138int mlx5_modify_rule_destination(struct mlx5_flow_rule *rule,
 139                                 struct mlx5_flow_destination *dest);
 140
 141struct mlx5_fc *mlx5_flow_rule_counter(struct mlx5_flow_rule *rule);
 142struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
 143void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
 144void mlx5_fc_query_cached(struct mlx5_fc *counter,
 145                          u64 *bytes, u64 *packets, u64 *lastuse);
 146
 147#endif
 148