FD.io VPP  v21.06-3-gbb25fbf28
Vector Packet Processing
trace.h
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1 /*
2  * Copyright (c) 2015 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  * trace.h: VLIB trace buffer.
17  *
18  * Copyright (c) 2008 Eliot Dresselhaus
19  *
20  * Permission is hereby granted, free of charge, to any person obtaining
21  * a copy of this software and associated documentation files (the
22  * "Software"), to deal in the Software without restriction, including
23  * without limitation the rights to use, copy, modify, merge, publish,
24  * distribute, sublicense, and/or sell copies of the Software, and to
25  * permit persons to whom the Software is furnished to do so, subject to
26  * the following conditions:
27  *
28  * The above copyright notice and this permission notice shall be
29  * included in all copies or substantial portions of the Software.
30  *
31  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
32  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
33  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
34  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
35  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
36  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
37  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
38  */
39 
40 #ifndef included_vlib_trace_h
41 #define included_vlib_trace_h
42 
43 #include <vppinfra/pool.h>
44 
45 typedef struct
46 {
47  /* CPU time stamp trace was made. */
49 
50  /* Node which generated this trace. */
52 
53  /* Number of data words in this trace. */
55 
56  /* Trace data follows. */
57  u8 data[0];
59 
60 typedef struct
61 {
62  /* Current number of traces in buffer. */
64 
65  /* Max. number of traces to be added to buffer. */
68 
69 /* Callback type for post-processing the vlib trace buffer */
70 struct vlib_main_t;
71 struct vlib_trace_main_t;
72 typedef void (vlib_trace_buffer_callback_t) (struct vlib_main_t *,
73  struct vlib_trace_main_t *);
74 
75 /* Callback type for alternate handling of vlib_add_trace internals */
76 struct vlib_node_runtime_t;
77 struct vlib_buffer_t;
78 typedef void *(vlib_add_trace_callback_t) (struct vlib_main_t *,
79  struct vlib_node_runtime_t * r,
80  struct vlib_buffer_t * b,
81  u32 n_data_bytes);
82 
83 typedef struct
84 {
85  /* Pool of trace buffers. */
87 
91 #define FILTER_FLAG_NONE 0
92 #define FILTER_FLAG_INCLUDE 1
93 #define FILTER_FLAG_EXCLUDE 2
94 #define FILTER_FLAG_POST_MORTEM 3
96 
97  /* set on trace add, cleared on clear trace */
99 
100  /* Per node trace counts. */
102 
103  /* verbosity */
104  int verbose;
105 
106  /* a callback to enable customized consumption of the trace buffer content */
108 
109  /* a callback to enable customized addition of a new trace */
111 
113 
115 
116 void trace_apply_filter (struct vlib_main_t *vm);
117 int trace_time_cmp (void *a1, void *a2);
118 void vlib_trace_stop_and_clear (void);
119 int vlib_enable_disable_pkt_trace_filter (int enable) __attribute__ ((weak));
121  u32 filter, u8 verbose);
123 void clear_trace_buffer (void);
124 
125 #endif /* included_vlib_trace_h */
126 
127 /*
128  * fd.io coding-style-patch-verification: ON
129  *
130  * Local Variables:
131  * eval: (c-set-style "gnu")
132  * End:
133  */
format_vlib_trace
format_function_t format_vlib_trace
Definition: trace.h:114
trace_filter_set
void trace_filter_set(u32 node_index, u32 flag, u32 count)
Definition: trace.c:528
vlib_trace_node_t::count
u32 count
Definition: trace.h:63
vm
vlib_main_t * vm
X-connect all packets from the HOST to the PHY.
Definition: nat44_ei.c:3047
node_index
node node_index
Definition: interface_output.c:420
vlib_trace_node_t
Definition: trace.h:60
vlib_trace_main_t::filter_count
u32 filter_count
Definition: trace.h:95
vlib_enable_disable_pkt_trace_filter
int vlib_enable_disable_pkt_trace_filter(int enable)
Enable / disable packet trace filter.
Definition: vnet_classify.c:2022
r
vnet_hw_if_output_node_runtime_t * r
Definition: interface_output.c:1071
vlib_trace_header_t::n_data
u32 n_data
Definition: trace.h:54
vlib_trace_main_t::filter_flag
u32 filter_flag
Definition: trace.h:90
count
u8 count
Definition: dhcp.api:208
pool.h
Fixed length block allocator. Pools are built from clib vectors and bitmaps. Use pools when repeatedl...
vlib_trace_main_t::trace_buffer_callback
vlib_trace_buffer_callback_t * trace_buffer_callback
Definition: trace.h:107
data
u8 data[128]
Definition: ipsec_types.api:92
vlib_trace_main_t::add_trace_callback
vlib_add_trace_callback_t * add_trace_callback
Definition: trace.h:110
format_function_t
u8 *() format_function_t(u8 *s, va_list *args)
Definition: format.h:48
vlib_trace_main_t::filter_node_index
u32 filter_node_index
Definition: trace.h:89
clear_trace_buffer
void clear_trace_buffer(void)
Definition: trace.c:115
u64
unsigned long u64
Definition: types.h:89
vlib_trace_main_t::trace_buffer_pool
vlib_trace_header_t ** trace_buffer_pool
Definition: trace.h:86
trace_apply_filter
void trace_apply_filter(struct vlib_main_t *vm)
Definition: trace.c:240
u32
unsigned int u32
Definition: types.h:88
trace_time_cmp
int trace_time_cmp(void *a1, void *a2)
Definition: trace.c:184
vlib_trace_node_t::limit
u32 limit
Definition: trace.h:66
vlib_trace_main_t::last_main_loop_count
u32 last_main_loop_count
Definition: trace.h:88
vlib_trace_header_t::node_index
u32 node_index
Definition: trace.h:51
vlib_trace_main_t::nodes
vlib_trace_node_t * nodes
Definition: trace.h:101
vlib_add_trace_callback_t
void *() vlib_add_trace_callback_t(struct vlib_main_t *, struct vlib_node_runtime_t *r, struct vlib_buffer_t *b, u32 n_data_bytes)
Definition: trace.h:78
vlib_trace_stop_and_clear
void vlib_trace_stop_and_clear(void)
Definition: trace.c:377
vlib_main_t
Definition: main.h:102
b
vlib_buffer_t ** b
Definition: nat44_ei_out2in.c:717
u8
unsigned char u8
Definition: types.h:56
vlib_trace_header_t
Definition: trace.h:45
vlib_trace_main_t::verbose
int verbose
Definition: trace.h:104
vlib_trace_header_t::time
u64 time
Definition: trace.h:48
vlib_trace_buffer_callback_t
void() vlib_trace_buffer_callback_t(struct vlib_main_t *, struct vlib_trace_main_t *)
Definition: trace.h:72
vlib_node_runtime_t
Definition: node.h:454
trace_update_capture_options
void trace_update_capture_options(u32 add, u32 node_index, u32 filter, u8 verbose)
Definition: trace.c:385
vlib_trace_main_t
Definition: trace.h:83
vlib_trace_main_t::trace_enable
u32 trace_enable
Definition: trace.h:98
vlib_buffer_t
VLIB buffer representation.
Definition: buffer.h:111