ovn/controller/lflow.h

   1 /* Copyright (c) 2015, 2016 Nicira, Inc.
   2  *
   3  * Licensed under the Apache License, Version 2.0 (the "License");
   4  * you may not use this file except in compliance with the License.
   5  * You may obtain a copy of the License at:
   6  *
   7  *     http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software
  10  * distributed under the License is distributed on an "AS IS" BASIS,
  11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  * See the License for the specific language governing permissions and
  13  * limitations under the License.
  14  */
  15
  16 #ifndef OVN_LFLOW_H
  17 #define OVN_LFLOW_H 1
  18
  19 #include "ovn/logical-fields.h"
  20
  21 /* Logical_Flow table translation to OpenFlow
  22  * ==========================================
  23  *
  24  * The Logical_Flow table obtained from the OVN_Southbound database works in
  25  * terms of logical entities, that is, logical flows among logical datapaths
  26  * and logical ports.  This code translates these logical flows into OpenFlow
  27  * flows that, again, work in terms of logical entities implemented through
  28  * OpenFlow extensions (e.g. registers represent the logical input and output
  29  * ports).
  30  *
  31  * Physical-to-logical and logical-to-physical translation are implemented in
  32  * physical.[ch] as separate OpenFlow tables that run before and after,
  33  * respectively, the logical pipeline OpenFlow tables.
  34  */
  35
  36 #include <stdint.h>
  37
  38 struct ovn_extend_table;
  39 struct ovsdb_idl_index;
  40 struct ovn_desired_flow_table;
  41 struct hmap;
  42 struct sbrec_chassis;
  43 struct sbrec_dhcp_options_table;
  44 struct sbrec_dhcpv6_options_table;
  45 struct sbrec_logical_flow_table;
  46 struct sbrec_mac_binding_table;
  47 struct simap;
  48 struct sset;
  49 struct uuid;
  50
  51 /* OpenFlow table numbers.
  52  *
  53  * These are heavily documented in ovn-architecture(7), please update it if
  54  * you make any changes. */
  55 #define OFTABLE_PHY_TO_LOG            0
  56 #define OFTABLE_LOG_INGRESS_PIPELINE  8 /* First of LOG_PIPELINE_LEN tables. */
  57 #define OFTABLE_REMOTE_OUTPUT        32
  58 #define OFTABLE_LOCAL_OUTPUT         33
  59 #define OFTABLE_CHECK_LOOPBACK       34
  60 #define OFTABLE_LOG_EGRESS_PIPELINE  40 /* First of LOG_PIPELINE_LEN tables. */
  61 #define OFTABLE_SAVE_INPORT          64
  62 #define OFTABLE_LOG_TO_PHY           65
  63 #define OFTABLE_MAC_BINDING          66
  64
  65 /* The number of tables for the ingress and egress pipelines. */
  66 #define LOG_PIPELINE_LEN 24
  67
  68 void lflow_init(void);
  69 void lflow_run(struct ovsdb_idl_index *sbrec_multicast_group_by_name_datapath,
  70                struct ovsdb_idl_index *sbrec_port_binding_by_name,
  71                const struct sbrec_dhcp_options_table *,
  72                const struct sbrec_dhcpv6_options_table *,
  73                const struct sbrec_logical_flow_table *,
  74                const struct sbrec_mac_binding_table *,
  75                const struct sbrec_chassis *chassis,
  76                const struct hmap *local_datapaths,
  77                const struct shash *addr_sets,
  78                const struct shash *port_groups,
  79                const struct sset *active_tunnels,
  80                const struct sset *local_lport_ids,
  81                struct ovn_desired_flow_table *,
  82                struct ovn_extend_table *group_table,
  83                struct ovn_extend_table *meter_table,
  84                uint32_t *conj_id_ofs);
  85
  86 bool lflow_handle_changed_flows(
  87     struct ovsdb_idl_index *sbrec_multicast_group_by_name_datapath,
  88     struct ovsdb_idl_index *sbrec_port_binding_by_name,
  89     const struct sbrec_dhcp_options_table *,
  90     const struct sbrec_dhcpv6_options_table *,
  91     const struct sbrec_logical_flow_table *,
  92     const struct hmap *local_datapaths,
  93     const struct sbrec_chassis *,
  94     const struct shash *addr_sets,
  95     const struct shash *port_groups,
  96     const struct sset *active_tunnels,
  97     const struct sset *local_lport_ids,
  98     struct ovn_desired_flow_table *,
  99     struct ovn_extend_table *group_table,
 100     struct ovn_extend_table *meter_table,
 101     uint32_t *conj_id_ofs);
 102
 103 void lflow_destroy(void);
 104
 105 #endif /* ovn/lflow.h */