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
  41#define MLX5_SET_CFG(p, f, v) MLX5_SET(create_flow_group_in, p, f, v)
  42
  43enum mlx5_flow_destination_type {
  44        MLX5_FLOW_DESTINATION_TYPE_NONE,
  45        MLX5_FLOW_DESTINATION_TYPE_VPORT,
  46        MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE,
  47        MLX5_FLOW_DESTINATION_TYPE_TIR,
  48        MLX5_FLOW_DESTINATION_TYPE_FLOW_SAMPLER,
  49        MLX5_FLOW_DESTINATION_TYPE_UPLINK,
  50        MLX5_FLOW_DESTINATION_TYPE_PORT,
  51        MLX5_FLOW_DESTINATION_TYPE_COUNTER,
  52        MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE_NUM,
  53};
  54
  55enum {
  56        MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO  = 1 << 16,
  57        MLX5_FLOW_CONTEXT_ACTION_ENCRYPT        = 1 << 17,
  58        MLX5_FLOW_CONTEXT_ACTION_DECRYPT        = 1 << 18,
  59        MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS    = 1 << 19,
  60};
  61
  62enum {
  63        MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT = BIT(0),
  64        MLX5_FLOW_TABLE_TUNNEL_EN_DECAP = BIT(1),
  65        MLX5_FLOW_TABLE_TERMINATION = BIT(2),
  66        MLX5_FLOW_TABLE_UNMANAGED = BIT(3),
  67        MLX5_FLOW_TABLE_OTHER_VPORT = BIT(4),
  68};
  69
  70#define LEFTOVERS_RULE_NUM       2
  71static inline void build_leftovers_ft_param(int *priority,
  72                                            int *n_ent,
  73                                            int *n_grp)
  74{
  75        *priority = 0; /* Priority of leftovers_prio-0 */
  76        *n_ent = LEFTOVERS_RULE_NUM;
  77        *n_grp = LEFTOVERS_RULE_NUM;
  78}
  79
  80enum mlx5_flow_namespace_type {
  81        MLX5_FLOW_NAMESPACE_BYPASS,
  82        MLX5_FLOW_NAMESPACE_LAG,
  83        MLX5_FLOW_NAMESPACE_OFFLOADS,
  84        MLX5_FLOW_NAMESPACE_ETHTOOL,
  85        MLX5_FLOW_NAMESPACE_KERNEL,
  86        MLX5_FLOW_NAMESPACE_LEFTOVERS,
  87        MLX5_FLOW_NAMESPACE_ANCHOR,
  88        MLX5_FLOW_NAMESPACE_FDB_BYPASS,
  89        MLX5_FLOW_NAMESPACE_FDB,
  90        MLX5_FLOW_NAMESPACE_ESW_EGRESS,
  91        MLX5_FLOW_NAMESPACE_ESW_INGRESS,
  92        MLX5_FLOW_NAMESPACE_SNIFFER_RX,
  93        MLX5_FLOW_NAMESPACE_SNIFFER_TX,
  94        MLX5_FLOW_NAMESPACE_EGRESS,
  95        MLX5_FLOW_NAMESPACE_EGRESS_KERNEL,
  96        MLX5_FLOW_NAMESPACE_RDMA_RX,
  97        MLX5_FLOW_NAMESPACE_RDMA_RX_KERNEL,
  98        MLX5_FLOW_NAMESPACE_RDMA_TX,
  99        MLX5_FLOW_NAMESPACE_PORT_SEL,
 100        MLX5_FLOW_NAMESPACE_RDMA_RX_COUNTERS,
 101        MLX5_FLOW_NAMESPACE_RDMA_TX_COUNTERS,
 102};
 103
 104enum {
 105        FDB_BYPASS_PATH,
 106        FDB_TC_OFFLOAD,
 107        FDB_FT_OFFLOAD,
 108        FDB_TC_MISS,
 109        FDB_BR_OFFLOAD,
 110        FDB_SLOW_PATH,
 111        FDB_PER_VPORT,
 112};
 113
 114struct mlx5_pkt_reformat;
 115struct mlx5_modify_hdr;
 116struct mlx5_flow_definer;
 117struct mlx5_flow_table;
 118struct mlx5_flow_group;
 119struct mlx5_flow_namespace;
 120struct mlx5_flow_handle;
 121
 122enum {
 123        FLOW_CONTEXT_HAS_TAG = BIT(0),
 124};
 125
 126struct mlx5_flow_context {
 127        u32 flags;
 128        u32 flow_tag;
 129        u32 flow_source;
 130};
 131
 132struct mlx5_flow_spec {
 133        u8   match_criteria_enable;
 134        u32  match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
 135        u32  match_value[MLX5_ST_SZ_DW(fte_match_param)];
 136        struct mlx5_flow_context flow_context;
 137};
 138
 139enum {
 140        MLX5_FLOW_DEST_VPORT_VHCA_ID      = BIT(0),
 141        MLX5_FLOW_DEST_VPORT_REFORMAT_ID  = BIT(1),
 142};
 143
 144struct mlx5_flow_destination {
 145        enum mlx5_flow_destination_type type;
 146        union {
 147                u32                     tir_num;
 148                u32                     ft_num;
 149                struct mlx5_flow_table  *ft;
 150                u32                     counter_id;
 151                struct {
 152                        u16             num;
 153                        u16             vhca_id;
 154                        struct mlx5_pkt_reformat *pkt_reformat;
 155                        u8              flags;
 156                } vport;
 157                u32                     sampler_id;
 158        };
 159};
 160
 161struct mod_hdr_tbl {
 162        struct mutex lock; /* protects hlist */
 163        DECLARE_HASHTABLE(hlist, 8);
 164};
 165
 166struct mlx5_flow_namespace *
 167mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n);
 168struct mlx5_flow_namespace *
 169mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
 170                        enum mlx5_flow_namespace_type type);
 171struct mlx5_flow_namespace *
 172mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev,
 173                                  enum mlx5_flow_namespace_type type,
 174                                  int vport);
 175
 176struct mlx5_flow_table_attr {
 177        int prio;
 178        int max_fte;
 179        u32 level;
 180        u32 flags;
 181        struct mlx5_flow_table *next_ft;
 182
 183        struct {
 184                int max_num_groups;
 185                int num_reserved_entries;
 186        } autogroup;
 187};
 188
 189struct mlx5_flow_table *
 190mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
 191                       struct mlx5_flow_table_attr *ft_attr);
 192
 193struct mlx5_flow_table *
 194mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
 195                                    struct mlx5_flow_table_attr *ft_attr);
 196
 197struct mlx5_flow_table *
 198mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
 199                             struct mlx5_flow_table_attr *ft_attr, u16 vport);
 200struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
 201                                               struct mlx5_flow_namespace *ns,
 202                                               int prio, u32 level);
 203int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
 204
 205/* inbox should be set with the following values:
 206 * start_flow_index
 207 * end_flow_index
 208 * match_criteria_enable
 209 * match_criteria
 210 */
 211struct mlx5_flow_group *
 212mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
 213void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
 214
 215struct mlx5_fs_vlan {
 216        u16 ethtype;
 217        u16 vid;
 218        u8  prio;
 219};
 220
 221#define MLX5_FS_VLAN_DEPTH      2
 222
 223enum {
 224        FLOW_ACT_NO_APPEND = BIT(0),
 225        FLOW_ACT_IGNORE_FLOW_LEVEL = BIT(1),
 226};
 227
 228struct mlx5_flow_act {
 229        u32 action;
 230        struct mlx5_modify_hdr  *modify_hdr;
 231        struct mlx5_pkt_reformat *pkt_reformat;
 232        union {
 233                u32 ipsec_obj_id;
 234                uintptr_t esp_id;
 235        };
 236        u32 flags;
 237        struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
 238        struct ib_counters *counters;
 239        struct mlx5_flow_group *fg;
 240};
 241
 242#define MLX5_DECLARE_FLOW_ACT(name) \
 243        struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
 244                                      .flags =  0, }
 245
 246/* Single destination per rule.
 247 * Group ID is implied by the match criteria.
 248 */
 249struct mlx5_flow_handle *
 250mlx5_add_flow_rules(struct mlx5_flow_table *ft,
 251                    const struct mlx5_flow_spec *spec,
 252                    struct mlx5_flow_act *flow_act,
 253                    struct mlx5_flow_destination *dest,
 254                    int num_dest);
 255void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
 256
 257int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
 258                                 struct mlx5_flow_destination *new_dest,
 259                                 struct mlx5_flow_destination *old_dest);
 260
 261struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
 262
 263/* As mlx5_fc_create() but doesn't queue stats refresh thread. */
 264struct mlx5_fc *mlx5_fc_create_ex(struct mlx5_core_dev *dev, bool aging);
 265
 266void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
 267u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter);
 268void mlx5_fc_query_cached(struct mlx5_fc *counter,
 269                          u64 *bytes, u64 *packets, u64 *lastuse);
 270int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
 271                  u64 *packets, u64 *bytes);
 272u32 mlx5_fc_id(struct mlx5_fc *counter);
 273
 274int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
 275int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
 276
 277struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
 278                                                 u8 ns_type, u8 num_actions,
 279                                                 void *modify_actions);
 280void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
 281                                struct mlx5_modify_hdr *modify_hdr);
 282struct mlx5_flow_definer *
 283mlx5_create_match_definer(struct mlx5_core_dev *dev,
 284                          enum mlx5_flow_namespace_type ns_type, u16 format_id,
 285                          u32 *match_mask);
 286void mlx5_destroy_match_definer(struct mlx5_core_dev *dev,
 287                                struct mlx5_flow_definer *definer);
 288int mlx5_get_match_definer_id(struct mlx5_flow_definer *definer);
 289
 290struct mlx5_pkt_reformat_params {
 291        int type;
 292        u8 param_0;
 293        u8 param_1;
 294        size_t size;
 295        void *data;
 296};
 297
 298struct mlx5_pkt_reformat *mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
 299                                                     struct mlx5_pkt_reformat_params *params,
 300                                                     enum mlx5_flow_namespace_type ns_type);
 301void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
 302                                  struct mlx5_pkt_reformat *reformat);
 303
 304#endif
 305