lib/dpif-netdev.h

   1 /*
   2  * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2015 Nicira, Inc.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at:
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #ifndef DPIF_NETDEV_H
  18 #define DPIF_NETDEV_H 1
  19
  20 #include <stdbool.h>
  21 #include <stddef.h>
  22 #include <stdint.h>
  23 #include "dpif.h"
  24 #include "openvswitch/types.h"
  25 #include "dp-packet.h"
  26 #include "packets.h"
  27
  28 #ifdef  __cplusplus
  29 extern "C" {
  30 #endif
  31
  32 /* Enough headroom to add a vlan tag, plus an extra 2 bytes to allow IP
  33  * headers to be aligned on a 4-byte boundary.  */
  34 enum { DP_NETDEV_HEADROOM = 2 + VLAN_HEADER_LEN };
  35
  36 bool dpif_is_netdev(const struct dpif *);
  37
  38 #define NR_QUEUE   1
  39 #define NR_PMD_THREADS 1
  40
  41 #ifdef  __cplusplus
  42 }
  43 #endif
  44
  45 #endif /* netdev.h */