lib/netdev-offload.h

   1 /*
   2  * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
   3  * Copyright (c) 2019 Samsung Electronics Co.,Ltd.
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at:
   8  *
   9  *     http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 #ifndef NETDEV_OFFLOAD_H
  19 #define NETDEV_OFFLOAD_H 1
  20
  21 #include "openvswitch/netdev.h"
  22 #include "openvswitch/types.h"
  23 #include "packets.h"
  24 #include "flow.h"
  25
  26 #ifdef  __cplusplus
  27 extern "C" {
  28 #endif
  29
  30 struct dp_packet_batch;
  31 struct dp_packet;
  32 struct netdev_class;
  33 struct netdev_rxq;
  34 struct netdev_saved_flags;
  35 struct ofpbuf;
  36 struct in_addr;
  37 struct in6_addr;
  38 struct smap;
  39 struct sset;
  40 struct ovs_action_push_tnl;
  41
  42
  43 /* Offload-capable (HW) netdev information */
  44 struct netdev_hw_info {
  45     bool oor;           /* Out of Offload Resources ? */
  46     int offload_count;  /* Pending (non-offloaded) flow count */
  47     int pending_count;  /* Offloaded flow count */
  48 };
  49
  50 enum hw_info_type {
  51     HW_INFO_TYPE_OOR = 1,               /* OOR state */
  52     HW_INFO_TYPE_PEND_COUNT = 2,        /* Pending(non-offloaded) flow count */
  53     HW_INFO_TYPE_OFFL_COUNT = 3         /* Offloaded flow count */
  54 };
  55
  56 struct netdev_flow_dump {
  57     struct netdev *netdev;
  58     odp_port_t port;
  59     bool terse;
  60     struct nl_dump *nl_dump;
  61 };
  62
  63 /* Flow offloading. */
  64 struct offload_info {
  65     const struct dpif_class *dpif_class;
  66     ovs_be16 tp_dst_port; /* Destination port for tunnel in SET action */
  67     uint8_t tunnel_csum_on; /* Tunnel header with checksum */
  68
  69     bool recirc_id_shared_with_tc;  /* Indicates whever tc chains will be in
  70                                      * sync with datapath recirc ids. */
  71
  72     /*
  73      * The flow mark id assigened to the flow. If any pkts hit the flow,
  74      * it will be in the pkt meta data.
  75      */
  76     uint32_t flow_mark;
  77
  78     bool tc_modify_flow_deleted; /* Indicate the tc modify flow put success
  79                                   * to delete the original flow. */
  80 };
  81
  82 int netdev_flow_flush(struct netdev *);
  83 int netdev_flow_dump_create(struct netdev *, struct netdev_flow_dump **dump,
  84                             bool terse);
  85 int netdev_flow_dump_destroy(struct netdev_flow_dump *);
  86 bool netdev_flow_dump_next(struct netdev_flow_dump *, struct match *,
  87                           struct nlattr **actions, struct dpif_flow_stats *,
  88                           struct dpif_flow_attrs *, ovs_u128 *ufid,
  89                           struct ofpbuf *rbuffer, struct ofpbuf *wbuffer);
  90 int netdev_flow_put(struct netdev *, struct match *, struct nlattr *actions,
  91                     size_t actions_len, const ovs_u128 *,
  92                     struct offload_info *, struct dpif_flow_stats *);
  93 int netdev_flow_get(struct netdev *, struct match *, struct nlattr **actions,
  94                     const ovs_u128 *, struct dpif_flow_stats *,
  95                     struct dpif_flow_attrs *, struct ofpbuf *wbuffer);
  96 int netdev_flow_del(struct netdev *, const ovs_u128 *,
  97                     struct dpif_flow_stats *);
  98 int netdev_init_flow_api(struct netdev *);
  99 void netdev_uninit_flow_api(struct netdev *);
 100 uint32_t netdev_get_block_id(struct netdev *);
 101 int netdev_get_hw_info(struct netdev *, int);
 102 void netdev_set_hw_info(struct netdev *, int, int);
 103 bool netdev_any_oor(void);
 104 bool netdev_is_flow_api_enabled(void);
 105 void netdev_set_flow_api_enabled(const struct smap *ovs_other_config);
 106 bool netdev_is_offload_rebalance_policy_enabled(void);
 107
 108 struct dpif_class;
 109 struct dpif_port;
 110 int netdev_ports_insert(struct netdev *, const struct dpif_class *,
 111                         struct dpif_port *);
 112 struct netdev *netdev_ports_get(odp_port_t port, const struct dpif_class *);
 113 int netdev_ports_remove(odp_port_t port, const struct dpif_class *);
 114 odp_port_t netdev_ifindex_to_odp_port(int ifindex);
 115
 116 struct netdev_flow_dump **netdev_ports_flow_dump_create(
 117                                         const struct dpif_class *,
 118                                         int *ports,
 119                                         bool terse);
 120 void netdev_ports_flow_flush(const struct dpif_class *);
 121 int netdev_ports_flow_del(const struct dpif_class *, const ovs_u128 *ufid,
 122                           struct dpif_flow_stats *stats);
 123 int netdev_ports_flow_get(const struct dpif_class *, struct match *match,
 124                           struct nlattr **actions,
 125                           const ovs_u128 *ufid,
 126                           struct dpif_flow_stats *stats,
 127                           struct dpif_flow_attrs *attrs,
 128                           struct ofpbuf *buf);
 129
 130 #ifdef  __cplusplus
 131 }
 132 #endif
 133
 134 #endif /* netdev-offload.h */