FD.io VPP  v19.08-23-g4b943d6
Vector Packet Processing
punt.h
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1 /*
2  * Copyright (c) 2018 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 __PUNT_H__
17 #define __PUNT_H__
18 
19 #include <vlib/vlib.h>
20 
21 /**
22  * The 'syatem' defined punt reasons.
23  * Only add to this list reasons defined and used within the vlib subsystem.
24  * To define new reasons in e.g. plgins, use punt_reason_alloc()
25  */
26 typedef enum vlib_punt_reason_t_
27 {
30 
31 /**
32  * Walk each punt reason
33  */
35  const u8 * name, void *ctx);
36 
37 extern void punt_reason_walk (punt_reason_walk_cb_t cb, void *cxt);
38 
39 /**
40  * @brief Format a punt reason
41  */
42 extern u8 *format_vlib_punt_reason (u8 * s, va_list * args);
43 
44 /**
45  * Typedef for a client handle
46  */
47 typedef int vlib_punt_hdl_t;
48 
49 /**
50  * @brief Register a new clinet
51  *
52  * @param who - The name of the client
53  *
54  * @retrun the handle the punt infra allocated for this client that must
55  * be used when the client wishes to use the infra
56  */
58 
59 /**
60  * Allocate a new punt reason
61  */
62 extern int vlib_punt_reason_alloc (vlib_punt_hdl_t client,
63  const char *reason_name,
64  vlib_punt_reason_t * reason);
65 
66 /**
67  * Validate that a punt reason is assigned
68  */
70 
71 /**
72  * @brief Register a node to receive particular punted buffers
73  *
74  * @paran client - The registered client registering for the packets
75  * @param reason - The reason the packet was punted
76  * @param node - The node to which the punted packets will be sent
77  */
78 extern int vlib_punt_register (vlib_punt_hdl_t client,
79  vlib_punt_reason_t reason, const char *node);
80 extern int vlib_punt_unregister (vlib_punt_hdl_t client,
81  vlib_punt_reason_t pr, const char *node);
82 
83 /**
84  * FOR USE IN THE DP ONLY
85  *
86  * Arc[s] to follow for each reason
87  */
88 extern u16 **punt_dp_db;
89 
90 /**
91  * FOR USE IN THE DP ONLY
92  *
93  * Per-reason counters
94  */
96 
97 #endif
98 
99 /*
100  * fd.io coding-style-patch-verification: ON
101  *
102  * Local Variables:
103  * eval: (c-set-style "gnu")
104  * End:
105  */
int(* punt_reason_walk_cb_t)(vlib_punt_reason_t id, const u8 *name, void *ctx)
Walk each punt reason.
Definition: punt.h:34
int vlib_punt_reason_validate(vlib_punt_reason_t reason)
Validate that a punt reason is assigned.
Definition: punt.c:370
int vlib_punt_hdl_t
Typedef for a client handle.
Definition: punt.h:47
unsigned char u8
Definition: types.h:56
u8 * format_vlib_punt_reason(u8 *s, va_list *args)
Format a punt reason.
Definition: punt.c:132
int vlib_punt_reason_alloc(vlib_punt_hdl_t client, const char *reason_name, vlib_punt_reason_t *reason)
Allocate a new punt reason.
Definition: punt.c:379
int vlib_punt_register(vlib_punt_hdl_t client, vlib_punt_reason_t reason, const char *node)
Register a node to receive particular punted buffers.
Definition: punt.c:252
int vlib_punt_unregister(vlib_punt_hdl_t client, vlib_punt_reason_t pr, const char *node)
Definition: punt.c:316
vlib_punt_hdl_t vlib_punt_client_register(const char *who)
Register a new clinet.
Definition: punt.c:140
long ctx[MAX_CONNS]
Definition: main.c:144
unsigned short u16
Definition: types.h:57
void punt_reason_walk(punt_reason_walk_cb_t cb, void *cxt)
Definition: punt.c:405
u8 name[64]
Definition: memclnt.api:152
vlib_combined_counter_main_t punt_counters
FOR USE IN THE DP ONLY.
Definition: punt.c:26
A collection of combined counters.
Definition: counter.h:188
u16 ** punt_dp_db
FOR USE IN THE DP ONLY.
Definition: punt.c:103
u32 id
Definition: udp.api:45
vlib_punt_reason_t_
The &#39;syatem&#39; defined punt reasons.
Definition: punt.h:26
enum vlib_punt_reason_t_ vlib_punt_reason_t
The &#39;syatem&#39; defined punt reasons.