text: /* Copyright (c) 2015, 2016 Nicira, Inc.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at:
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #ifndef OVN_LFLOW_H
  #define OVN_LFLOW_H 1
  
  #include "ovn/lib/logical-fields.h"
  
  /* Logical_Flow table translation to OpenFlow
   * ==========================================
   *
   * The Logical_Flow table obtained from the OVN_Southbound database works in
   * terms of logical entities, that is, logical flows among logical datapaths
   * and logical ports.  This code translates these logical flows into OpenFlow
   * flows that, again, work in terms of logical entities implemented through
   * OpenFlow extensions (e.g. registers represent the logical input and output
   * ports).
   *
   * Physical-to-logical and logical-to-physical translation are implemented in
   * physical.[ch] as separate OpenFlow tables that run before and after,
   * respectively, the logical pipeline OpenFlow tables.
   */
  
  #include <stdint.h>
  
  struct ovn_extend_table;
  struct ovsdb_idl_index;
  struct hmap;
  struct sbrec_chassis;
  struct sbrec_dhcp_options_table;
  struct sbrec_dhcpv6_options_table;
  struct sbrec_logical_flow_table;
  struct sbrec_mac_binding_table;
  struct simap;
  struct sset;
  struct uuid;
  
  /* OpenFlow table numbers.
   *
   * These are heavily documented in ovn-architecture(7), please update it if
   * you make any changes. */
  #define OFTABLE_PHY_TO_LOG            0
  #define OFTABLE_LOG_INGRESS_PIPELINE  8 /* First of LOG_PIPELINE_LEN tables. */
  #define OFTABLE_REMOTE_OUTPUT        32
  #define OFTABLE_LOCAL_OUTPUT         33
  #define OFTABLE_CHECK_LOOPBACK       34
  #define OFTABLE_LOG_EGRESS_PIPELINE  40 /* First of LOG_PIPELINE_LEN tables. */
  #define OFTABLE_SAVE_INPORT          64
  #define OFTABLE_LOG_TO_PHY           65
  #define OFTABLE_MAC_BINDING          66
  
  /* The number of tables for the ingress and egress pipelines. */
  #define LOG_PIPELINE_LEN 24
  
  void lflow_init(void);
  void lflow_run(struct ovsdb_idl_index *sbrec_chassis_by_name,
                 struct ovsdb_idl_index *sbrec_multicast_group_by_name_datapath,
                 struct ovsdb_idl_index *sbrec_port_binding_by_name,
                 const struct sbrec_dhcp_options_table *,
                 const struct sbrec_dhcpv6_options_table *,
                 const struct sbrec_logical_flow_table *,
                 const struct sbrec_mac_binding_table *,
                 const struct sbrec_chassis *chassis,
                 const struct hmap *local_datapaths,
                 const struct shash *addr_sets,
                 const struct shash *port_groups,
                 const struct sset *active_tunnels,
                 const struct sset *local_lport_ids,
                 struct hmap *flow_table,
                 struct ovn_extend_table *group_table,
                 struct ovn_extend_table *meter_table);
  void lflow_destroy(void);
  
  #endif /* ovn/lflow.h */
  