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
  45enum {
  46        MLX5_FLOW_TABLE_TUNNEL_EN = BIT(0),
  47};
  48
  49#define LEFTOVERS_RULE_NUM       2
  50static 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
  59enum 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
  74struct mlx5_flow_table;
  75struct mlx5_flow_group;
  76struct mlx5_flow_namespace;
  77struct mlx5_flow_handle;
  78
  79struct 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
  85struct 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
  95struct mlx5_flow_namespace *
  96mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
  97                        enum mlx5_flow_namespace_type type);
  98
  99struct mlx5_flow_table *
 100mlx5_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
 107struct mlx5_flow_table_attr {
 108        int prio;
 109        int max_fte;
 110        u32 level;
 111        u32 flags;
 112};
 113
 114struct mlx5_flow_table *
 115mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
 116                       struct mlx5_flow_table_attr *ft_attr);
 117
 118struct mlx5_flow_table *
 119mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
 120                             int prio,
 121                             int num_flow_table_entries,
 122                             u32 level, u16 vport);
 123struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
 124                                               struct mlx5_flow_namespace *ns,
 125                                               int prio, u32 level);
 126int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
 127
 128/* inbox should be set with the following values:
 129 * start_flow_index
 130 * end_flow_index
 131 * match_criteria_enable
 132 * match_criteria
 133 */
 134struct mlx5_flow_group *
 135mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
 136void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
 137
 138struct mlx5_flow_act {
 139        u32 action;
 140        u32 flow_tag;
 141        u32 encap_id;
 142        u32 modify_id;
 143};
 144
 145#define MLX5_DECLARE_FLOW_ACT(name) \
 146        struct mlx5_flow_act name = {MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
 147                                     MLX5_FS_DEFAULT_FLOW_TAG, 0, 0}
 148
 149/* Single destination per rule.
 150 * Group ID is implied by the match criteria.
 151 */
 152struct mlx5_flow_handle *
 153mlx5_add_flow_rules(struct mlx5_flow_table *ft,
 154                    struct mlx5_flow_spec *spec,
 155                    struct mlx5_flow_act *flow_act,
 156                    struct mlx5_flow_destination *dest,
 157                    int dest_num);
 158void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
 159
 160int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
 161                                 struct mlx5_flow_destination *new_dest,
 162                                 struct mlx5_flow_destination *old_dest);
 163
 164struct mlx5_fc *mlx5_flow_rule_counter(struct mlx5_flow_handle *handler);
 165struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
 166void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
 167void mlx5_fc_query_cached(struct mlx5_fc *counter,
 168                          u64 *bytes, u64 *packets, u64 *lastuse);
 169int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
 170int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
 171
 172#endif
 173