1/*
2 * Copyright (c) 2016 Cisco and/or its affiliates.
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 * @brief
17 * The data-path object representing receiveing the packet, i.e. it's for-us
18 */
19
20#ifndef __RECEIVE_DPO_H__
21#define __RECEIVE_DPO_H__
22
23#include <vnet/dpo/dpo.h>
24#include <vnet/ip/ip6.h>
25
26typedef struct receive_dpo_t_
27{
28    /**
29     * required for pool_get_aligned.
30     *  memebers used in the switch path come first!
31     */
32    CLIB_CACHE_LINE_ALIGN_MARK(cacheline0);
33
34    /**
35     * The Software interface index on which traffic is received
36     */
37    u32 rd_sw_if_index;
38
39    /**
40     * The address on the receive interface. packet are destined to this address
41     */
42    ip46_address_t rd_addr;
43
44    /**
45     * number oflocks.
46     */
47    u16 rd_locks;
48} receive_dpo_t;
49
50extern int dpo_is_receive(const dpo_id_t *dpo);
51
52extern void receive_dpo_add_or_lock (dpo_proto_t proto,
53                                     u32 sw_if_index,
54                                     const ip46_address_t *nh_addr,
55                                     dpo_id_t *dpo);
56
57extern void receive_dpo_module_init(void);
58
59/**
60 * @brief pool of all receive DPOs
61 */
62extern receive_dpo_t *receive_dpo_pool;
63
64static inline receive_dpo_t *
65receive_dpo_get (index_t index)
66{
67    return (pool_elt_at_index(receive_dpo_pool, index));
68}
69
70#endif
71