aboutsummaryrefslogtreecommitdiffstats
path: root/src/vnet/session/session_debug.h
blob: 45dd77c7e454ce8a88668b90352177bae4c9bc82 (plain)
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
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
/*
 * Copyright (c) 2017-2019 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.
 */
#ifndef SRC_VNET_SESSION_SESSION_DEBUG_H_
#define SRC_VNET_SESSION_SESSION_DEBUG_H_

#include <vnet/session/transport.h>
#include <vlib/vlib.h>
#include <vpp/vnet/config.h>

#define foreach_session_dbg_evt                                               \
  _ (ENQ, DEQ_EVTS, 1, "enqueue")                                             \
  _ (DEQ, DEQ_EVTS, 1, "dequeue")                                             \
  _ (DEQ_NODE, DISPATCH_DBG, 1, "dequeue")                                    \
  _ (POLL_GAP_TRACK, EVT_POLL_DBG, 1, "poll gap track")                       \
  _ (POLL_DISPATCH_TIME, EVT_POLL_DBG, 1, "dispatch time")                    \
  _ (DISPATCH_START, CLOCKS_EVT_DBG, 1, "dispatch start")                     \
  _ (DISPATCH_END, CLOCKS_EVT_DBG, 1, "dispatch end")                         \
  _ (DSP_CNTRS, CLOCKS_EVT_DBG, 1, "dispatch counters")                       \
  _ (STATE_CHANGE, SM, 1, "session state change")                             \
  _ (FREE, SM, 1, "session free")                                             \
  _ (IO_EVT_COUNTS, COUNTS_EVT_DBG, 1, "io evt counts")                       \
  _ (COUNTS, COUNTS_EVT_DBG, 1, "ctrl evt counts")

typedef enum _session_evt_dbg
{
#define _(sym, grp, lvl, str) SESSION_EVT_##sym,
  foreach_session_dbg_evt
#undef _
} session_evt_dbg_e;

typedef enum session_evt_lvl_
{
#define _(sym, grp, lvl, str) SESSION_EVT_##sym##_LVL = lvl,
  foreach_session_dbg_evt
#undef _
} session_evt_lvl_e;

#define foreach_session_evt_grp                                               \
  _ (DEQ_EVTS, "dequeue/enqueue events")                                      \
  _ (DISPATCH_DBG, "dispatch")                                                \
  _ (EVT_POLL_DBG, "event poll")                                              \
  _ (SM, "state machine")                                                     \
  _ (CLOCKS_EVT_DBG, "clocks events")                                         \
  _ (COUNTS_EVT_DBG, "counts events")

typedef enum session_evt_grp_
{
#define _(sym, str) SESSION_EVT_GRP_##sym,
  foreach_session_evt_grp
#undef _
    SESSION_EVT_N_GRP
} session_evt_grp_e;

typedef enum session_evt_to_grp_
{
#define _(sym, grp, lvl, str) SESSION_EVT_##sym##_GRP = SESSION_EVT_GRP_##grp,
  foreach_session_dbg_evt
#undef _
} session_evt_to_grp_e;

#define foreach_session_events                                                \
  _ (CLK_UPDATE_TIME, 1, 1, "Time Update Time")                               \
  _ (CLK_MQ_DEQ, 1, 1, "Time MQ Dequeue")                                     \
  _ (CLK_CTRL_EVTS, 1, 1, "Time Ctrl Events")                                 \
  _ (CLK_NEW_IO_EVTS, 1, 1, "Time New IO Events")                             \
  _ (CLK_OLD_IO_EVTS, 1, 1, "Time Old IO Events")                             \
  _ (CLK_TOTAL, 1, 1, "Time Total in Node")                                   \
  _ (CLK_START, 1, 1, "Time Since Last Reset")                                \
                                                                              \
  _ (CNT_MQ_EVTS, 1, 0, "# of MQ Events Processed")                           \
  _ (CNT_CTRL_EVTS, 1, 0, "# of Ctrl Events Processed")                       \
  _ (CNT_NEW_EVTS, 1, 0, "# of New Events Processed")                         \
  _ (CNT_OLD_EVTS, 1, 0, "# of Old Events Processed")                         \
  _ (CNT_IO_EVTS, 1, 0, "# of Events Processed")                              \
  _ (CNT_NODE_CALL, 1, 0, "# of Node Calls")                                  \
                                                                              \
  _ (BASE_OFFSET_IO_EVTS, 0, 0, "NULL")                                       \
  _ (SESSION_IO_EVT_RX, 1, 0, "# of IO Event RX")                             \
  _ (SESSION_IO_EVT_TX, 1, 0, "# of IO Event TX")                             \
  _ (SESSION_IO_EVT_TX_FLUSH, 1, 0, "# of IO Event TX Flush")                 \
  _ (SESSION_IO_EVT_BUILTIN_RX, 1, 0, "# of IO Event BuiltIn RX")             \
  _ (SESSION_IO_EVT_TX_MAIN, 1, 0, "# of IO Event TX Main")

typedef enum
{
#define _(sym, disp, type, str) SESS_Q_##sym,
  foreach_session_events
#undef _
  SESS_Q_MAX_EVT_TYPES
} sess_q_node_events_types_t;

typedef struct session_dbg_counter_
{
  union
  {
    f64 f64;
    u64 u64;
  };
} session_dbg_counter_t;

typedef struct session_dbg_evts_t
{
  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
  f64 last_time;
  f64 start_time;
  u64 prev_io;
  session_dbg_counter_t counters[SESS_Q_MAX_EVT_TYPES];
} session_dbg_evts_t;

typedef struct session_dbg_main_
{
  session_dbg_evts_t *wrk;
  u8 grp_dbg_lvl[SESSION_EVT_N_GRP];
} session_dbg_main_t;

extern session_dbg_main_t session_dbg_main;

#if defined VPP_SESSION_DEBUG && (TRANSPORT_DEBUG > 0)
#define SESSION_DEBUG	       (1)
#define SESSION_DEQ_EVTS       (1)
#define SESSION_DISPATCH_DBG   (1)
#define SESSION_EVT_POLL_DBG   (1)
#define SESSION_SM	       (1)
#define SESSION_CLOCKS_EVT_DBG (1)
#define SESSION_COUNTS_EVT_DBG (1)
#else
#define SESSION_DEBUG	       (0)
#define SESSION_DEQ_EVTS       (0)
#define SESSION_DISPATCH_DBG   (0)
#define SESSION_EVT_POLL_DBG   (0)
#define SESSION_SM	       (0)
#define SESSION_CLOCKS_EVT_DBG (0)
#define SESSION_COUNTS_EVT_DBG (0)
#endif

#if SESSION_DEBUG

#define SESSION_DBG(_fmt, _args...) clib_warning (_fmt, ##_args)

#define DEC_SESSION_ETD(_s, _e, _size)					\
  struct								\
  {									\
    u32 data[_size];							\
  } * ed;								\
  transport_connection_t *_tc = session_get_transport (_s);		\
  ed = ELOG_TRACK_DATA (&vlib_global_main.elog_main,			\
			_e, _tc->elog_track)

#define DEC_SESSION_ED(_e, _size)					\
  struct								\
  {									\
    u32 data[_size];							\
  } * ed;								\
  ed = ELOG_DATA (&vlib_global_main.elog_main, _e)

#if SESSION_SM
#define SESSION_EVT_STATE_CHANGE_HANDLER(_s)                                  \
  {                                                                           \
    ELOG_TYPE_DECLARE (_e) = {						      \
      .format = "%s: idx %u",                                                 \
      .format_args = "t4i4",                                                  \
      .n_enum_strings = 12,					     	      \
      .enum_strings = {                                           	      \
		       "created",					      \
		       "listening",					      \
		       "connecting",					      \
		       "accepting",					      \
		       "ready",						      \
		       "opened",					      \
		       "transport closing",				      \
		       "closing",					      \
		       "app closed",					      \
		       "transport closed",				      \
		       "closed",					      \
		       "transport deleted",				      \
		       },						      \
    };                                   \
    DEC_SESSION_ETD (_s, _e, 2);                                              \
    ed->data[0] = _s->session_state;                                          \
    ed->data[1] = _s->session_index;                                          \
  }

#define SESSION_EVT_FREE_HANDLER(_s)                                          \
  {                                                                           \
    ELOG_TYPE_DECLARE (_e) = {                                                \
      .format = "free: idx %u",                                               \
      .format_args = "i4",                                                    \
    };                                                                        \
    DEC_SESSION_ED (_e, 1);                                                   \
    ed->data[0] = _s->session_index;                                          \
  }
#else
#define SESSION_EVT_STATE_CHANGE_HANDLER(_s)
#define SESSION_EVT_FREE_HANDLER(_s)
#endif

#if SESSION_DEQ_EVTS
#define SESSION_EVT_DEQ_HANDLER(_s, _now, _max, _has_evt, _ts)		\
{									\
  ELOG_TYPE_DECLARE (_e) =						\
  {									\
    .format = "deq: now %u max %d evt %u ts %d",			\
    .format_args = "i4i4i4i4",						\
  };									\
  DEC_SESSION_ETD(_s, _e, 4);						\
  ed->data[0] = _now;							\
  ed->data[1] = _max;							\
  ed->data[2] = _has_evt;						\
  ed->data[3] = _ts * 1000000.0;					\
}

#define SESSION_EVT_ENQ_HANDLER(_s, _len)				\
{									\
  ELOG_TYPE_DECLARE (_e) =						\
  {									\
    .format = "enq: length %d",						\
    .format_args = "i4",						\
  };									\
  DEC_SESSION_ETD(_s, _e, 1);						\
  ed->data[0] = _len;							\
}
#else
#define SESSION_EVT_DEQ_HANDLER(_s, _now, _max, _has_evt, _ts)
#define SESSION_EVT_ENQ_HANDLER(_s, _body)
#endif /* SESSION_DEQ_NODE_EVTS */

#if SESSION_DISPATCH_DBG
#define SESSION_EVT_DEQ_NODE_HANDLER(_wrk, _node_evt, _ntx)		\
{									\
  ELOG_TYPE_DECLARE (_e) =						\
  {									\
    .format = "dispatch: %s pkts %u re-entry: %u dispatch %u",		\
    .format_args = "t4i4i4i4",                                   	\
    .n_enum_strings = 2,                                        	\
    .enum_strings = {                                           	\
      "start",                                             		\
      "end",                                              		\
    },									\
  };									\
  DEC_SESSION_ED(_e, 4);						\
  ed->data[0] = _node_evt;						\
  ed->data[1] = _ntx;							\
  ed->data[2] = (_wrk->last_vlib_time - _wrk->last_event_poll) 		\
		* 1000000.0;						\
  ed->data[3] = (vlib_time_now (_wrk->vm) - _wrk->last_vlib_time)	\
                * 1000000.0;						\
}
#else
#define SESSION_EVT_DEQ_NODE_HANDLER(_wrk, _node_evt, _ntx)
#endif /* SESSION_DISPATCH_DBG */

#if SESSION_EVT_POLL_DBG && SESSION_DEBUG > 1
#define SESSION_EVT_POLL_GAP(_wrk)					\
{									\
  ELOG_TYPE_DECLARE (_e) =						\
  {									\
    .format = "nixon-gap: %d us",					\
    .format_args = "i4",						\
  };									\
  DEC_SESSION_ED(_e, 1);						\
  ed->data[0] =	(u32) ((_wrk->last_vlib_time - _wrk->last_event_poll)	\
			*1000000.0);					\
}
#define SESSION_EVT_POLL_GAP_TRACK_HANDLER(_wrk)			\
{									\
  if (PREDICT_TRUE (_wrk->last_event_poll != 0.0))			\
    if (_wrk->last_vlib_time > _wrk->last_event_poll + 500e-6)		\
      SESSION_EVT_POLL_GAP(_wrk);					\
  _wrk->last_event_poll = _wrk->last_vlib_time;				\
}

#define SESSION_EVT_POLL_DISPATCH_TIME_HANDLER(_wrk)			\
{									\
  f64 diff = vlib_time_now (vlib_get_main ()) - _wrk->last_event_poll;  \
  if (diff > 5e-2)							\
    {									\
      ELOG_TYPE_DECLARE (_e) =						\
      {									\
        .format = "dispatch time: %d us",				\
        .format_args = "i4",						\
      };								\
      DEC_SESSION_ED(_e, 1);						\
      ed->data[0] = diff *1000000.0;					\
    }									\
}

#else
#define SESSION_EVT_POLL_GAP(_wrk)
#define SESSION_EVT_POLL_GAP_TRACK_HANDLER(_wrk)
#define SESSION_EVT_POLL_DISPATCH_TIME_HANDLER(_wrk)
#define SESSION_EVT_POLL_CLOCKS_TIME_HANDLER(_wrk)

#endif /* SESSION_EVT_POLL_DBG */

#if SESSION_CLOCKS_EVT_DBG

#define SESSION_EVT_DSP_CNTRS_UPDATE_TIME_HANDLER(_wrk, _diff, _args...)      \
  session_dbg_evts_t *sde = &session_dbg_main.wrk[_wrk->vm->thread_index];    \
  sde->counters[SESS_Q_CLK_UPDATE_TIME].f64 += _diff;

#define SESSION_EVT_DSP_CNTRS_MQ_DEQ_HANDLER(_wrk, _diff, _cnt, _args...)     \
  session_dbg_evts_t *sde = &session_dbg_main.wrk[_wrk->vm->thread_index];    \
  sde->counters[SESS_Q_CNT_MQ_EVTS].u64 += _cnt;                              \
  sde->counters[SESS_Q_CLK_MQ_DEQ].f64 += _diff;

#define SESSION_EVT_DSP_CNTRS_CTRL_EVTS_HANDLER(_wrk, _diff, _args...)		\
  session_dbg_evts_t *sde = &session_dbg_main.wrk[_wrk->vm->thread_index];	\
  sde->counters[SESS_Q_CLK_CTRL_EVTS].f64 += _diff;                  		\
  sde->prev_io = sde->counters[SESS_Q_CNT_IO_EVTS].u64;				\

#define SESSION_EVT_DSP_CNTRS_NEW_IO_EVTS_HANDLER(_wrk, _diff, _args...)	\
  session_dbg_evts_t *sde = &session_dbg_main.wrk[_wrk->vm->thread_index];	\
  sde->counters[SESS_Q_CLK_NEW_IO_EVTS].f64 += _diff;         			\
  sde->counters[SESS_Q_CNT_NEW_EVTS].u64 += 					\
    sde->counters[SESS_Q_CNT_IO_EVTS].u64 - sde->prev_io;			\
  sde->prev_io = sde->counters[SESS_Q_CNT_IO_EVTS].u64;				\

#define SESSION_EVT_DSP_CNTRS_OLD_IO_EVTS_HANDLER(_wrk, _diff, _args...)	\
  session_dbg_evts_t *sde = &session_dbg_main.wrk[_wrk->vm->thread_index];	\
  sde->counters[SESS_Q_CLK_OLD_IO_EVTS].f64 += _diff;                 		\
  sde->counters[SESS_Q_CNT_OLD_EVTS].u64 += 					\
    sde->counters[SESS_Q_CNT_IO_EVTS].u64 - sde->prev_io;			\

#define SESSION_EVT_DSP_CNTRS_HANDLER(_disp_evt, _wrk, _args...)              	\
{                                                                               \
  f64 time_now = vlib_time_now (_wrk->vm), diff;                                \
  diff = time_now - session_dbg_main.wrk[_wrk->vm->thread_index].last_time; 	\
  session_dbg_main.wrk[_wrk->vm->thread_index].last_time = time_now;            \
  CC(CC(SESSION_EVT_DSP_CNTRS_,_disp_evt),_HANDLER)(wrk, diff, _args);		\
}
#else
#define SESSION_EVT_DSP_CNTRS_HANDLER(_disp_evt, _wrk, _args...)
#endif /*SESSION_CLOCKS_EVT_DBG */

#if SESSION_COUNTS_EVT_DBG
#define SESSION_EVT_COUNTS_HANDLER(_node_evt, _cnt, _wrk)	\
{                                                            	\
  session_dbg_main.wrk[_wrk->vm->thread_index].              	\
	counters[SESS_Q_##_node_evt].u64 += _cnt;     		\
}

#define SESSION_EVT_IO_EVT_COUNTS_HANDLER(_node_evt, _cnt, _wrk)              \
  {                                                                           \
    u8 type = SESS_Q_BASE_OFFSET_IO_EVTS + _node_evt + 1;                     \
    session_dbg_evts_t *sde;                                                  \
    sde = &session_dbg_main.wrk[_wrk->vm->thread_index];                      \
    sde->counters[type].u64 += _cnt;                                          \
    sde->counters[SESS_Q_CNT_IO_EVTS].u64 += _cnt;                            \
  }
#else
#define SESSION_EVT_COUNTS_HANDLER(_node_evt, _cnt, _wrk)
#define SESSION_EVT_IO_EVT_COUNTS_HANDLER(_node_evt, _cnt, _wrk)
#endif /*SESSION_COUNTS_EVT_DBG */


#define SESSION_EVT_DISPATCH_START_HANDLER(_wrk)			\
{									\
  session_dbg_evts_t *sde;						\
  sde = &session_dbg_main.wrk[_wrk->vm->thread_index];			\
  if (SESSION_DEQ_EVTS > 1)						\
    SESSION_EVT_DEQ_NODE_HANDLER (_wrk, 0, 0);				\
  SESSION_EVT_POLL_GAP_TRACK_HANDLER (wrk);				\
  sde->counters[SESS_Q_##CNT_NODE_CALL].u64 +=1;              		\
  sde->last_time = vlib_time_now (_wrk->vm);				\
}

#define SESSION_EVT_DISPATCH_END_HANDLER(_wrk, _ntx)			\
{									\
  f64 now = vlib_time_now (_wrk->vm);					\
  session_dbg_evts_t *sde;						\
  sde = &session_dbg_main.wrk[_wrk->vm->thread_index];			\
  if (_ntx)								\
    SESSION_EVT_DEQ_NODE_HANDLER (_wrk, 1, _ntx);			\
  SESSION_EVT_POLL_DISPATCH_TIME_HANDLER(_wrk);				\
  _wrk->last_event_poll = now;						\
  sde->counters[SESS_Q_CLK_TOTAL].f64 += now - _wrk->last_vlib_time;	\
  sde->counters[SESS_Q_CLK_START].f64 = now - sde->start_time;		\
}

#define CONCAT_HELPER(_a, _b) _a##_b
#define CC(_a, _b) CONCAT_HELPER(_a, _b)
#define session_evt_lvl(_evt) CC (_evt, _LVL)
#define session_evt_grp(_evt) CC (_evt, _GRP)
#define session_evt_grp_dbg_lvl(_evt)                                         \
  session_dbg_main.grp_dbg_lvl[session_evt_grp (_evt)]
#define SESSION_EVT(_evt, _args...)                                           \
  if (PREDICT_FALSE (session_evt_grp_dbg_lvl (_evt) >=                        \
		     session_evt_lvl (_evt)))                                 \
  CC (_evt, _HANDLER) (_args)
#else
#define SESSION_EVT(_evt, _args...)
#define SESSION_DBG(_fmt, _args...)
#endif /* SESSION_DEBUG */

void session_debug_init (void);

#endif /* SRC_VNET_SESSION_SESSION_DEBUG_H_ */
/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */