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 enum {
  46         MLX5_FLOW_TABLE_TUNNEL_EN = BIT(0),
  47 };
  48
  49 #define LEFTOVERS_RULE_NUM       2
  50 static inline void build_leftovers_ft_param(int *priority,
  51                                             int *n_ent,
  52                                             int *n_grp)
  53 {
  54         *priority = 0; /* Priority of leftovers_prio-0 */
  55         *n_ent = LEFTOVERS_RULE_NUM;
  56         *n_grp = LEFTOVERS_RULE_NUM;
  57 }
  58
  59 enum mlx5_flow_namespace_type {
  60         MLX5_FLOW_NAMESPACE_BYPASS,
  61         MLX5_FLOW_NAMESPACE_LAG,
  62         MLX5_FLOW_NAMESPACE_OFFLOADS,
  63         MLX5_FLOW_NAMESPACE_ETHTOOL,
  64         MLX5_FLOW_NAMESPACE_KERNEL,
  65         MLX5_FLOW_NAMESPACE_LEFTOVERS,
  66         MLX5_FLOW_NAMESPACE_ANCHOR,
  67         MLX5_FLOW_NAMESPACE_FDB,
  68         MLX5_FLOW_NAMESPACE_ESW_EGRESS,
  69         MLX5_FLOW_NAMESPACE_ESW_INGRESS,
  70         MLX5_FLOW_NAMESPACE_SNIFFER_RX,
  71         MLX5_FLOW_NAMESPACE_SNIFFER_TX,
  72 };
  73
  74 struct mlx5_flow_table;
  75 struct mlx5_flow_group;
  76 struct mlx5_flow_namespace;
  77 struct mlx5_flow_handle;
  78
  79 struct mlx5_flow_spec {
  80         u8   match_criteria_enable;
  81         u32  match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
  82         u32  match_value[MLX5_ST_SZ_DW(fte_match_param)];
  83 };
  84
  85 struct mlx5_flow_destination {
  86         enum mlx5_flow_destination_type type;
  87         union {
  88                 u32                     tir_num;
  89                 struct mlx5_flow_table  *ft;
  90                 u32                     vport_num;
  91                 struct mlx5_fc          *counter;
  92         };
  93 };
  94
  95 struct mlx5_flow_namespace *
  96 mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
  97                         enum mlx5_flow_namespace_type type);
  98
  99 struct mlx5_flow_table *
 100 mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
 101                                     int prio,
 102                                     int num_flow_table_entries,
 103                                     int max_num_groups,
 104                                     u32 level,
 105                                     u32 flags);
 106
 107 struct mlx5_flow_table_attr {
 108         int prio;
 109         int max_fte;
 110         u32 level;
 111         u32 flags;
 112         u32 underlay_qpn;
 113 };
 114
 115 struct mlx5_flow_table *
 116 mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
 117                        struct mlx5_flow_table_attr *ft_attr);
 118
 119 struct mlx5_flow_table *
 120 mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
 121                              int prio,
 122                              int num_flow_table_entries,
 123                              u32 level, u16 vport);
 124 struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
 125                                                struct mlx5_flow_namespace *ns,
 126                                                int prio, u32 level);
 127 int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
 128
 129 /* inbox should be set with the following values:
 130  * start_flow_index
 131  * end_flow_index
 132  * match_criteria_enable
 133  * match_criteria
 134  */
 135 struct mlx5_flow_group *
 136 mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
 137 void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
 138
 139 struct mlx5_flow_act {
 140         u32 action;
 141         u32 flow_tag;
 142         u32 encap_id;
 143         u32 modify_id;
 144 };
 145
 146 #define MLX5_DECLARE_FLOW_ACT(name) \
 147         struct mlx5_flow_act name = {MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
 148                                      MLX5_FS_DEFAULT_FLOW_TAG, 0, 0}
 149
 150 /* Single destination per rule.
 151  * Group ID is implied by the match criteria.
 152  */
 153 struct mlx5_flow_handle *
 154 mlx5_add_flow_rules(struct mlx5_flow_table *ft,
 155                     struct mlx5_flow_spec *spec,
 156                     struct mlx5_flow_act *flow_act,
 157                     struct mlx5_flow_destination *dest,
 158                     int dest_num);
 159 void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
 160
 161 int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
 162                                  struct mlx5_flow_destination *new_dest,
 163                                  struct mlx5_flow_destination *old_dest);
 164
 165 struct mlx5_fc *mlx5_flow_rule_counter(struct mlx5_flow_handle *handler);
 166 struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
 167 void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
 168 void mlx5_fc_query_cached(struct mlx5_fc *counter,
 169                           u64 *bytes, u64 *packets, u64 *lastuse);
 170 #endif