FD.io VPP  v20.01-rc1
Vector Packet Processing
mdata.h
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1 
2 /*
3  * mdata.h - Buffer metadata change tracker
4  *
5  * Copyright (c) 2019 Cisco and/or its affiliates.
6  * Licensed under the Apache License, Version 2.0 (the "License");
7  * you may not use this file except in compliance with the License.
8  * You may obtain a copy of the License at:
9  *
10  * http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  */
18 #ifndef __included_mdata_h__
19 #define __included_mdata_h__
20 
21 #include <vnet/vnet.h>
22 
23 #include <vppinfra/hash.h>
24 #include <vppinfra/error.h>
25 
26 /** @file buffer metadata change tracker definitions
27  */
28 
29 typedef struct
30 {
31  /** Node index, ~0 means no data from this run */
33  /** buffer metadata, cast to vlib_buffer_t as needed */
34  u8 mdata[128];
35 } mdata_t;
36 
37 typedef struct
38 {
39  /** API message ID base */
41 
42  /** Per-thread buffer metadata before calling node fcn */
44 
45  /** Spinlock to protect modified metadata by node */
47 
48  /** Modified metadata by node */
50 
51  /* convenience */
54 } mdata_main_t;
55 
57 
58 #endif /* __included_mdata_h__ */
59 
60 /*
61  * fd.io coding-style-patch-verification: ON
62  *
63  * Local Variables:
64  * eval: (c-set-style "gnu")
65  * End:
66  */
u16 msg_id_base
API message ID base.
Definition: mdata.h:40
unsigned char u8
Definition: types.h:56
clib_spinlock_t modify_lock
Spinlock to protect modified metadata by node.
Definition: mdata.h:46
unsigned int u32
Definition: types.h:88
vnet_main_t * vnet_main
Definition: mdata.h:53
Definition: mdata.h:29
unsigned short u16
Definition: types.h:57
mdata_t ** before_per_thread
Per-thread buffer metadata before calling node fcn.
Definition: mdata.h:43
mdata_main_t mdata_main
Definition: mdata.c:33
u32 node_index
Node index, ~0 means no data from this run.
Definition: mdata.h:32
vlib_main_t * vlib_main
Definition: mdata.h:52
mdata_t * modifies
Modified metadata by node.
Definition: mdata.h:49