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Vector Packet Processing
mpls_label_dpo.h
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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 #ifndef __MPLS_LABEL_DPO_H__
17 #define __MPLS_LABEL_DPO_H__
18 
19 #include <vnet/vnet.h>
20 #include <vnet/mpls/packet.h>
21 #include <vnet/dpo/dpo.h>
22 
23 /**
24  * A representation of an MPLS label for imposition in the data-path
25  */
26 typedef struct mpls_label_dpo_t
27 {
28  /**
29  * The MPLS label header to impose
30  */
32 
33  /**
34  * Next DPO in the graph
35  */
37 
38  /**
39  * Number of locks/users of the label
40  */
43 
45  mpls_eos_bit_t eos,
46  u8 ttl,
47  u8 exp,
48  const dpo_id_t *dpo);
49 
50 extern u8* format_mpls_label_dpo(u8 *s, va_list *args);
51 
52 
53 /*
54  * Encapsulation violation for fast data-path access
55  */
57 
58 static inline mpls_label_dpo_t *
60 {
61  return (pool_elt_at_index(mpls_label_dpo_pool, index));
62 }
63 
64 extern void mpls_label_dpo_module_init(void);
65 
66 #endif
void mpls_label_dpo_module_init(void)
mpls_label_dpo_t * mpls_label_dpo_pool
u32 mpls_label_t
A label value only, i.e.
Definition: packet.h:24
u32 index_t
A Data-Path Object is an object that represents actions that are applied to packets are they are swit...
Definition: dpo.h:41
The identity of a DPO is a combination of its type and its instance number/index of objects of that t...
Definition: dpo.h:138
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:369
u8 * format_mpls_label_dpo(u8 *s, va_list *args)
index_t mpls_label_dpo_create(mpls_label_t label, mpls_eos_bit_t eos, u8 ttl, u8 exp, const dpo_id_t *dpo)
static mpls_label_dpo_t * mpls_label_dpo_get(index_t index)
struct mpls_label_dpo_t mpls_label_dpo_t
A representation of an MPLS label for imposition in the data-path.
dpo_id_t mld_dpo
Next DPO in the graph.
unsigned short u16
Definition: types.h:57
unsigned char u8
Definition: types.h:56
u16 mld_locks
Number of locks/users of the label.
mpls_unicast_header_t mld_hdr
The MPLS label header to impose.
A representation of an MPLS label for imposition in the data-path.
enum mpls_eos_bit_t_ mpls_eos_bit_t