root/include/linux/mlx5/fs.h

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INCLUDED FROM


DEFINITIONS

This source file includes following definitions.
  1. build_leftovers_ft_param

   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         MLX5_FLOW_CONTEXT_ACTION_ENCRYPT        = 1 << 17,
  44         MLX5_FLOW_CONTEXT_ACTION_DECRYPT        = 1 << 18,
  45 };
  46 
  47 enum {
  48         MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT = BIT(0),
  49         MLX5_FLOW_TABLE_TUNNEL_EN_DECAP = BIT(1),
  50         MLX5_FLOW_TABLE_TERMINATION = BIT(2),
  51 };
  52 
  53 #define LEFTOVERS_RULE_NUM       2
  54 static inline void build_leftovers_ft_param(int *priority,
  55                                             int *n_ent,
  56                                             int *n_grp)
  57 {
  58         *priority = 0; /* Priority of leftovers_prio-0 */
  59         *n_ent = LEFTOVERS_RULE_NUM;
  60         *n_grp = LEFTOVERS_RULE_NUM;
  61 }
  62 
  63 enum mlx5_flow_namespace_type {
  64         MLX5_FLOW_NAMESPACE_BYPASS,
  65         MLX5_FLOW_NAMESPACE_LAG,
  66         MLX5_FLOW_NAMESPACE_OFFLOADS,
  67         MLX5_FLOW_NAMESPACE_ETHTOOL,
  68         MLX5_FLOW_NAMESPACE_KERNEL,
  69         MLX5_FLOW_NAMESPACE_LEFTOVERS,
  70         MLX5_FLOW_NAMESPACE_ANCHOR,
  71         MLX5_FLOW_NAMESPACE_FDB,
  72         MLX5_FLOW_NAMESPACE_ESW_EGRESS,
  73         MLX5_FLOW_NAMESPACE_ESW_INGRESS,
  74         MLX5_FLOW_NAMESPACE_SNIFFER_RX,
  75         MLX5_FLOW_NAMESPACE_SNIFFER_TX,
  76         MLX5_FLOW_NAMESPACE_EGRESS,
  77         MLX5_FLOW_NAMESPACE_RDMA_RX,
  78         MLX5_FLOW_NAMESPACE_RDMA_RX_KERNEL,
  79 };
  80 
  81 enum {
  82         FDB_BYPASS_PATH,
  83         FDB_FAST_PATH,
  84         FDB_SLOW_PATH,
  85 };
  86 
  87 struct mlx5_pkt_reformat;
  88 struct mlx5_modify_hdr;
  89 struct mlx5_flow_table;
  90 struct mlx5_flow_group;
  91 struct mlx5_flow_namespace;
  92 struct mlx5_flow_handle;
  93 
  94 enum {
  95         FLOW_CONTEXT_HAS_TAG = BIT(0),
  96 };
  97 
  98 struct mlx5_flow_context {
  99         u32 flags;
 100         u32 flow_tag;
 101         u32 flow_source;
 102 };
 103 
 104 struct mlx5_flow_spec {
 105         u8   match_criteria_enable;
 106         u32  match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
 107         u32  match_value[MLX5_ST_SZ_DW(fte_match_param)];
 108         struct mlx5_flow_context flow_context;
 109 };
 110 
 111 enum {
 112         MLX5_FLOW_DEST_VPORT_VHCA_ID      = BIT(0),
 113         MLX5_FLOW_DEST_VPORT_REFORMAT_ID  = BIT(1),
 114 };
 115 
 116 struct mlx5_flow_destination {
 117         enum mlx5_flow_destination_type type;
 118         union {
 119                 u32                     tir_num;
 120                 u32                     ft_num;
 121                 struct mlx5_flow_table  *ft;
 122                 u32                     counter_id;
 123                 struct {
 124                         u16             num;
 125                         u16             vhca_id;
 126                         struct mlx5_pkt_reformat *pkt_reformat;
 127                         u8              flags;
 128                 } vport;
 129         };
 130 };
 131 
 132 struct mod_hdr_tbl {
 133         struct mutex lock; /* protects hlist */
 134         DECLARE_HASHTABLE(hlist, 8);
 135 };
 136 
 137 struct mlx5_flow_namespace *
 138 mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n);
 139 struct mlx5_flow_namespace *
 140 mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
 141                         enum mlx5_flow_namespace_type type);
 142 struct mlx5_flow_namespace *
 143 mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev,
 144                                   enum mlx5_flow_namespace_type type,
 145                                   int vport);
 146 
 147 struct mlx5_flow_table *
 148 mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
 149                                     int prio,
 150                                     int num_flow_table_entries,
 151                                     int max_num_groups,
 152                                     u32 level,
 153                                     u32 flags);
 154 
 155 struct mlx5_flow_table_attr {
 156         int prio;
 157         int max_fte;
 158         u32 level;
 159         u32 flags;
 160 };
 161 
 162 struct mlx5_flow_table *
 163 mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
 164                        struct mlx5_flow_table_attr *ft_attr);
 165 
 166 struct mlx5_flow_table *
 167 mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
 168                              int prio,
 169                              int num_flow_table_entries,
 170                              u32 level, u16 vport);
 171 struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
 172                                                struct mlx5_flow_namespace *ns,
 173                                                int prio, u32 level);
 174 int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
 175 
 176 /* inbox should be set with the following values:
 177  * start_flow_index
 178  * end_flow_index
 179  * match_criteria_enable
 180  * match_criteria
 181  */
 182 struct mlx5_flow_group *
 183 mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
 184 void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
 185 
 186 struct mlx5_fs_vlan {
 187         u16 ethtype;
 188         u16 vid;
 189         u8  prio;
 190 };
 191 
 192 #define MLX5_FS_VLAN_DEPTH      2
 193 
 194 enum {
 195         FLOW_ACT_NO_APPEND = BIT(0),
 196 };
 197 
 198 struct mlx5_flow_act {
 199         u32 action;
 200         struct mlx5_modify_hdr  *modify_hdr;
 201         struct mlx5_pkt_reformat *pkt_reformat;
 202         uintptr_t esp_id;
 203         u32 flags;
 204         struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
 205         struct ib_counters *counters;
 206 };
 207 
 208 #define MLX5_DECLARE_FLOW_ACT(name) \
 209         struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
 210                                       .flags =  0, }
 211 
 212 /* Single destination per rule.
 213  * Group ID is implied by the match criteria.
 214  */
 215 struct mlx5_flow_handle *
 216 mlx5_add_flow_rules(struct mlx5_flow_table *ft,
 217                     const struct mlx5_flow_spec *spec,
 218                     struct mlx5_flow_act *flow_act,
 219                     struct mlx5_flow_destination *dest,
 220                     int num_dest);
 221 void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
 222 
 223 int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
 224                                  struct mlx5_flow_destination *new_dest,
 225                                  struct mlx5_flow_destination *old_dest);
 226 
 227 struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
 228 void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
 229 u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter);
 230 void mlx5_fc_query_cached(struct mlx5_fc *counter,
 231                           u64 *bytes, u64 *packets, u64 *lastuse);
 232 int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
 233                   u64 *packets, u64 *bytes);
 234 u32 mlx5_fc_id(struct mlx5_fc *counter);
 235 
 236 int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
 237 int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
 238 
 239 struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
 240                                                  u8 ns_type, u8 num_actions,
 241                                                  void *modify_actions);
 242 void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
 243                                 struct mlx5_modify_hdr *modify_hdr);
 244 
 245 struct mlx5_pkt_reformat *mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
 246                                                      int reformat_type,
 247                                                      size_t size,
 248                                                      void *reformat_data,
 249                                                      enum mlx5_flow_namespace_type ns_type);
 250 void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
 251                                   struct mlx5_pkt_reformat *reformat);
 252 
 253 #endif

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