linux/include/linux/mlx5/fs.h
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   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        MLX5_FLOW_CONTEXT_ACTION_ENCRYPT        = 1 << 17,
  44        MLX5_FLOW_CONTEXT_ACTION_DECRYPT        = 1 << 18,
  45};
  46
  47enum {
  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
  54static 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
  63enum 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};
  79
  80enum {
  81        FDB_BYPASS_PATH,
  82        FDB_FAST_PATH,
  83        FDB_SLOW_PATH,
  84};
  85
  86struct mlx5_flow_table;
  87struct mlx5_flow_group;
  88struct mlx5_flow_namespace;
  89struct mlx5_flow_handle;
  90
  91enum {
  92        FLOW_CONTEXT_HAS_TAG = BIT(0),
  93};
  94
  95struct mlx5_flow_context {
  96        u32 flags;
  97        u32 flow_tag;
  98        u32 flow_source;
  99};
 100
 101struct mlx5_flow_spec {
 102        u8   match_criteria_enable;
 103        u32  match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
 104        u32  match_value[MLX5_ST_SZ_DW(fte_match_param)];
 105        struct mlx5_flow_context flow_context;
 106};
 107
 108enum {
 109        MLX5_FLOW_DEST_VPORT_VHCA_ID      = BIT(0),
 110        MLX5_FLOW_DEST_VPORT_REFORMAT_ID  = BIT(1),
 111};
 112
 113struct mlx5_flow_destination {
 114        enum mlx5_flow_destination_type type;
 115        union {
 116                u32                     tir_num;
 117                u32                     ft_num;
 118                struct mlx5_flow_table  *ft;
 119                u32                     counter_id;
 120                struct {
 121                        u16             num;
 122                        u16             vhca_id;
 123                        u32             reformat_id;
 124                        u8              flags;
 125                } vport;
 126        };
 127};
 128
 129struct mlx5_flow_namespace *
 130mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n);
 131struct mlx5_flow_namespace *
 132mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
 133                        enum mlx5_flow_namespace_type type);
 134struct mlx5_flow_namespace *
 135mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev,
 136                                  enum mlx5_flow_namespace_type type,
 137                                  int vport);
 138
 139struct mlx5_flow_table *
 140mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
 141                                    int prio,
 142                                    int num_flow_table_entries,
 143                                    int max_num_groups,
 144                                    u32 level,
 145                                    u32 flags);
 146
 147struct mlx5_flow_table_attr {
 148        int prio;
 149        int max_fte;
 150        u32 level;
 151        u32 flags;
 152};
 153
 154struct mlx5_flow_table *
 155mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
 156                       struct mlx5_flow_table_attr *ft_attr);
 157
 158struct mlx5_flow_table *
 159mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
 160                             int prio,
 161                             int num_flow_table_entries,
 162                             u32 level, u16 vport);
 163struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
 164                                               struct mlx5_flow_namespace *ns,
 165                                               int prio, u32 level);
 166int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
 167
 168/* inbox should be set with the following values:
 169 * start_flow_index
 170 * end_flow_index
 171 * match_criteria_enable
 172 * match_criteria
 173 */
 174struct mlx5_flow_group *
 175mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
 176void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
 177
 178struct mlx5_fs_vlan {
 179        u16 ethtype;
 180        u16 vid;
 181        u8  prio;
 182};
 183
 184#define MLX5_FS_VLAN_DEPTH      2
 185
 186enum {
 187        FLOW_ACT_NO_APPEND = BIT(0),
 188};
 189
 190struct mlx5_flow_act {
 191        u32 action;
 192        u32 reformat_id;
 193        u32 modify_id;
 194        uintptr_t esp_id;
 195        u32 flags;
 196        struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
 197        struct ib_counters *counters;
 198};
 199
 200#define MLX5_DECLARE_FLOW_ACT(name) \
 201        struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
 202                                      .reformat_id = 0, \
 203                                      .modify_id = 0, \
 204                                      .flags =  0, }
 205
 206/* Single destination per rule.
 207 * Group ID is implied by the match criteria.
 208 */
 209struct mlx5_flow_handle *
 210mlx5_add_flow_rules(struct mlx5_flow_table *ft,
 211                    const struct mlx5_flow_spec *spec,
 212                    struct mlx5_flow_act *flow_act,
 213                    struct mlx5_flow_destination *dest,
 214                    int num_dest);
 215void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
 216
 217int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
 218                                 struct mlx5_flow_destination *new_dest,
 219                                 struct mlx5_flow_destination *old_dest);
 220
 221struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
 222void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
 223u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter);
 224void mlx5_fc_query_cached(struct mlx5_fc *counter,
 225                          u64 *bytes, u64 *packets, u64 *lastuse);
 226int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
 227                  u64 *packets, u64 *bytes);
 228u32 mlx5_fc_id(struct mlx5_fc *counter);
 229
 230int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
 231int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
 232
 233int mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
 234                             u8 namespace, u8 num_actions,
 235                             void *modify_actions, u32 *modify_header_id);
 236void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
 237                                u32 modify_header_id);
 238
 239int mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
 240                               int reformat_type,
 241                               size_t size,
 242                               void *reformat_data,
 243                               enum mlx5_flow_namespace_type namespace,
 244                               u32 *packet_reformat_id);
 245void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
 246                                  u32 packet_reformat_id);
 247
 248#endif
 249