1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
|
/*
* Copyright (c) 2020 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <vnet/session/session_debug.h>
#include <vnet/session/session.h>
#if SESSION_DEBUG > 0
session_dbg_main_t session_dbg_main;
static clib_error_t *
show_session_dbg_clock_cycles_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
u32 thread;
if (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
return clib_error_return (0, "unknown input `%U'", format_unformat_error,
input);
for (thread = 0; thread < vec_len (session_dbg_main.wrk); thread++)
{
vlib_cli_output (vm, "Threads %u:\n", thread);
session_dbg_evts_t *sdm = &session_dbg_main.wrk[thread];
#define _(sym, disp, type, str) \
if(disp) \
{ \
if (!type) \
vlib_cli_output (vm, "\t %25s : %12lu ", str, \
sdm->counters[SESS_Q_##sym].u64); \
else \
vlib_cli_output (vm, "\t %25s : %12.3f ", str, \
sdm->counters[SESS_Q_##sym].f64); \
}
foreach_session_events
#undef _
}
return 0;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_session_dbg_clock_cycles_command, static) =
{
.path = "show session dbg clock_cycles",
.short_help = "show session dbg clock_cycles",
.function = show_session_dbg_clock_cycles_fn,
};
/* *INDENT-ON* */
static clib_error_t *
clear_session_dbg_clock_cycles_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
session_dbg_evts_t *sde;
u32 thread;
if (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
return clib_error_return (0, "unknown input `%U'", format_unformat_error,
input);
for (thread = 0; thread < vec_len (session_dbg_main.wrk); thread++)
{
sde = &session_dbg_main.wrk[thread];
clib_memset (sde, 0, sizeof (session_dbg_evts_t));
sde->last_time = vlib_time_now (vlib_mains[thread]);
sde->start_time = sde->last_time;
}
return 0;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (clear_session_clock_cycles_command, static) =
{
.path = "clear session dbg clock_cycles",
.short_help = "clear session dbg clock_cycles",
.function = clear_session_dbg_clock_cycles_fn,
};
/* *INDENT-ON* */
void
session_debug_init (void)
{
vlib_thread_main_t *vtm = vlib_get_thread_main ();
session_dbg_main_t *sdm = &session_dbg_main;
u32 num_threads, thread;
num_threads = vtm->n_vlib_mains;
vec_validate_aligned (sdm->wrk, num_threads - 1, CLIB_CACHE_LINE_BYTES);
for (thread = 0; thread < num_threads; thread++)
{
clib_memset (&sdm->wrk[thread], 0, sizeof (session_dbg_evts_t));
sdm->wrk[thread].start_time = vlib_time_now (vlib_mains[thread]);
}
}
#else
void
session_debug_init (void)
{
}
#endif
void
dump_thread_0_event_queue (void)
{
vlib_main_t *vm = &vlib_global_main;
u32 my_thread_index = vm->thread_index;
session_event_t _e, *e = &_e;
svm_msg_q_shared_queue_t *sq;
svm_msg_q_ring_t *ring;
session_t *s0;
svm_msg_q_msg_t *msg;
svm_msg_q_t *mq;
int i, index;
mq = session_main_get_vpp_event_queue (my_thread_index);
sq = mq->q.shr;
index = sq->head;
for (i = 0; i < sq->cursize; i++)
{
msg = (svm_msg_q_msg_t *) (&sq->data[0] + sq->elsize * index);
ring = svm_msg_q_ring (mq, msg->ring_index);
clib_memcpy_fast (e, svm_msg_q_msg_data (mq, msg), ring->elsize);
switch (e->event_type)
{
case SESSION_IO_EVT_TX:
s0 = session_get_if_valid (e->session_index, my_thread_index);
fformat (stdout, "[%04d] TX session %d\n", i, s0->session_index);
break;
case SESSION_CTRL_EVT_CLOSE:
s0 = session_get_from_handle (e->session_handle);
fformat (stdout, "[%04d] disconnect session %d\n", i,
s0->session_index);
break;
case SESSION_IO_EVT_BUILTIN_RX:
s0 = session_get_if_valid (e->session_index, my_thread_index);
fformat (stdout, "[%04d] builtin_rx %d\n", i, s0->session_index);
break;
case SESSION_CTRL_EVT_RPC:
fformat (stdout, "[%04d] RPC call %llx with %llx\n",
i, (u64) (uword) (e->rpc_args.fp),
(u64) (uword) (e->rpc_args.arg));
break;
default:
fformat (stdout, "[%04d] unhandled event type %d\n",
i, e->event_type);
break;
}
index++;
if (index == sq->maxsize)
index = 0;
}
}
static u8
session_node_cmp_event (session_event_t * e, svm_fifo_t * f)
{
session_t *s;
switch (e->event_type)
{
case SESSION_IO_EVT_RX:
case SESSION_IO_EVT_TX:
case SESSION_IO_EVT_BUILTIN_RX:
case SESSION_IO_EVT_BUILTIN_TX:
case SESSION_IO_EVT_TX_FLUSH:
if (e->session_index == f->shr->master_session_index)
return 1;
break;
case SESSION_CTRL_EVT_CLOSE:
break;
case SESSION_CTRL_EVT_RPC:
s = session_get_from_handle (e->session_handle);
if (!s)
{
clib_warning ("session has event but doesn't exist!");
break;
}
if (s->rx_fifo == f || s->tx_fifo == f)
return 1;
break;
default:
break;
}
return 0;
}
u8
session_node_lookup_fifo_event (svm_fifo_t * f, session_event_t * e)
{
svm_msg_q_shared_queue_t *sq;
session_evt_elt_t *elt;
session_worker_t *wrk;
int i, index, found = 0;
svm_msg_q_msg_t *msg;
svm_msg_q_ring_t *ring;
svm_msg_q_t *mq;
u8 thread_index;
ASSERT (e);
thread_index = f->master_thread_index;
wrk = session_main_get_worker (thread_index);
/*
* Search evt queue
*/
mq = wrk->vpp_event_queue;
sq = mq->q.shr;
index = sq->head;
for (i = 0; i < sq->cursize; i++)
{
msg = (svm_msg_q_msg_t *) (&sq->data[0] + sq->elsize * index);
ring = svm_msg_q_ring (mq, msg->ring_index);
clib_memcpy_fast (e, svm_msg_q_msg_data (mq, msg), ring->elsize);
found = session_node_cmp_event (e, f);
if (found)
return 1;
index = (index + 1) % sq->maxsize;
}
/*
* Search pending events vector
*/
/* *INDENT-OFF* */
clib_llist_foreach (wrk->event_elts, evt_list,
pool_elt_at_index (wrk->event_elts, wrk->new_head),
elt, ({
found = session_node_cmp_event (&elt->evt, f);
if (found)
{
clib_memcpy_fast (e, &elt->evt, sizeof (*e));
goto done;
}
}));
/* *INDENT-ON* */
/* *INDENT-OFF* */
clib_llist_foreach (wrk->event_elts, evt_list,
pool_elt_at_index (wrk->event_elts, wrk->old_head),
elt, ({
found = session_node_cmp_event (&elt->evt, f);
if (found)
{
clib_memcpy_fast (e, &elt->evt, sizeof (*e));
goto done;
}
}));
/* *INDENT-ON* */
done:
return found;
}
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
|
