2 * Copyright (c) 2017 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:
7 * http://www.apache.org/licenses/LICENSE-2.0
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.
16 #ifndef SRC_VNET_TCP_TCP_DEBUG_H_
17 #define SRC_VNET_TCP_TCP_DEBUG_H_
19 #include <vlib/vlib.h>
22 #define TCP_DEBUG_SM (1)
23 #define TCP_DEBUG_CC (0)
24 #define TCP_DEBUG_CC_STAT (1)
25 #define TCP_DEBUG_BUFFER_ALLOCATION (0)
27 #define foreach_tcp_dbg_evt \
35 _(SYN_SENT, "SYN sent") \
36 _(SYNACK_SENT, "SYNACK sent") \
37 _(SYNACK_RCVD, "SYNACK rcvd") \
38 _(SYN_RXT, "SYN retransmit") \
39 _(FIN_SENT, "FIN sent") \
40 _(ACK_SENT, "ACK sent") \
41 _(DUPACK_SENT, "DUPACK sent") \
42 _(RST_SENT, "RST sent") \
43 _(SYN_RCVD, "SYN rcvd") \
44 _(ACK_RCVD, "ACK rcvd") \
45 _(DUPACK_RCVD, "DUPACK rcvd") \
46 _(FIN_RCVD, "FIN rcvd") \
47 _(RST_RCVD, "RST rcvd") \
48 _(STATE_CHANGE, "state change") \
49 _(PKTIZE, "packetize") \
51 _(SND_WND, "snd_wnd update") \
53 _(TIMER_POP, "timer pop") \
54 _(CC_RTX, "retransmit") \
55 _(CC_EVT, "cc event") \
56 _(CC_PACK, "cc partial ack") \
57 _(CC_STAT, "cc stats") \
58 _(CC_RTO_STAT, "cc rto stats") \
59 _(SEG_INVALID, "invalid segment") \
60 _(PAWS_FAIL, "failed paws check") \
61 _(ACK_RCV_ERR, "invalid ack") \
62 _(RCV_WND_SHRUNK, "shrunk rcv_wnd") \
66 #define _(sym, str) TCP_DBG_##sym,
71 typedef enum _tcp_dbg_evt
73 #define _(sym, str) TCP_EVT_##sym,
80 #define TRANSPORT_DEBUG (1)
83 * Infra and evt track setup
86 #define TCP_DBG(_fmt, _args...) clib_warning (_fmt, ##_args)
88 #define DECLARE_ETD(_tc, _e, _size) \
93 ed = ELOG_TRACK_DATA (&vlib_global_main.elog_main, \
94 _e, _tc->c_elog_track)
96 #define TCP_DBG_IP_TAG_LCL(_tc) \
100 ELOG_TYPE_DECLARE (_e) = \
102 .format = "lcl: %d.%d.%d.%d:%d", \
103 .format_args = "i4i4i4i4i4", \
105 DECLARE_ETD(_tc, _e, 5); \
106 ed->data[0] = _tc->c_lcl_ip.ip4.as_u8[0]; \
107 ed->data[1] = _tc->c_lcl_ip.ip4.as_u8[1]; \
108 ed->data[2] = _tc->c_lcl_ip.ip4.as_u8[2]; \
109 ed->data[3] = _tc->c_lcl_ip.ip4.as_u8[3]; \
110 ed->data[4] = clib_net_to_host_u16(_tc->c_lcl_port); \
114 #define TCP_DBG_IP_TAG_RMT(_tc) \
118 ELOG_TYPE_DECLARE (_e) = \
120 .format = "rmt: %d.%d.%d.%d:%d", \
121 .format_args = "i4i4i4i4i4", \
123 DECLARE_ETD(_tc, _e, 5); \
124 ed->data[0] = _tc->c_rmt_ip.ip4.as_u8[0]; \
125 ed->data[1] = _tc->c_rmt_ip.ip4.as_u8[1]; \
126 ed->data[2] = _tc->c_rmt_ip.ip4.as_u8[2]; \
127 ed->data[3] = _tc->c_rmt_ip.ip4.as_u8[3]; \
128 ed->data[4] = clib_net_to_host_u16(_tc->c_rmt_port); \
132 #define TCP_EVT_INIT_HANDLER(_tc, _is_l, ...) \
134 char *_fmt = _is_l ? "l[%d].%d:%d%c" : "[%d].%d:%d->.%d:%d%c"; \
137 _tc->c_elog_track.name = \
138 (char *) format (0, _fmt, _tc->c_thread_index, \
139 _tc->c_lcl_ip.ip4.as_u8[3], \
140 clib_net_to_host_u16(_tc->c_lcl_port), \
141 _tc->c_rmt_ip.ip4.as_u8[3], \
142 clib_net_to_host_u16(_tc->c_rmt_port), 0); \
145 _tc->c_elog_track.name = \
146 (char *) format (0, _fmt, _tc->c_thread_index, \
147 _tc->c_lcl_ip.ip6.as_u8[15], \
148 clib_net_to_host_u16(_tc->c_lcl_port), \
149 _tc->c_rmt_ip.ip6.as_u8[15], \
150 clib_net_to_host_u16(_tc->c_rmt_port), 0); \
151 elog_track_register (&vlib_global_main.elog_main, &_tc->c_elog_track);\
152 TCP_DBG_IP_TAG_LCL(_tc); \
153 TCP_DBG_IP_TAG_RMT(_tc); \
156 #define TCP_EVT_DEALLOC_HANDLER(_tc, ...) \
158 vec_free (_tc->c_elog_track.name); \
161 #define TCP_EVT_OPEN_HANDLER(_tc, ...) \
163 TCP_EVT_INIT_HANDLER(_tc, 0); \
164 ELOG_TYPE_DECLARE (_e) = \
166 .format = "open: index %d", \
167 .format_args = "i4", \
169 DECLARE_ETD(_tc, _e, 1); \
170 ed->data[0] = _tc->c_c_index; \
173 #define TCP_EVT_CLOSE_HANDLER(_tc, ...) \
175 ELOG_TYPE_DECLARE (_e) = \
177 .format = "close: %d", \
178 .format_args = "i4", \
180 DECLARE_ETD(_tc, _e, 1); \
181 ed->data[0] = _tc->c_c_index; \
184 #define TCP_EVT_BIND_HANDLER(_tc, ...) \
186 TCP_EVT_INIT_HANDLER(_tc, 1); \
187 ELOG_TYPE_DECLARE (_e) = \
189 .format = "bind: listener %d", \
191 DECLARE_ETD(_tc, _e, 1); \
192 ed->data[0] = _tc->c_c_index; \
195 #define TCP_EVT_SYN_RCVD_HANDLER(_tc,_init, ...) \
198 TCP_EVT_INIT_HANDLER(_tc, 0); \
199 ELOG_TYPE_DECLARE (_e) = \
201 .format = "syn-rx: irs %u", \
202 .format_args = "i4", \
204 DECLARE_ETD(_tc, _e, 1); \
205 ed->data[0] = _tc->irs; \
206 TCP_EVT_STATE_CHANGE_HANDLER(_tc); \
209 #define TCP_EVT_UNBIND_HANDLER(_tc, ...) \
211 TCP_EVT_DEALLOC_HANDLER(_tc); \
212 ELOG_TYPE_DECLARE (_e) = \
214 .format = "unbind: listener %d", \
216 DECLARE_ETD(_tc, _e, 1); \
217 ed->data[0] = _tc->c_c_index; \
218 TCP_EVT_DEALLOC_HANDLER(_tc); \
221 #define TCP_EVT_DELETE_HANDLER(_tc, ...) \
223 ELOG_TYPE_DECLARE (_e) = \
225 .format = "delete: %d", \
226 .format_args = "i4", \
228 DECLARE_ETD(_tc, _e, 1); \
229 ed->data[0] = _tc->c_c_index; \
230 TCP_EVT_DEALLOC_HANDLER(_tc); \
233 #define CONCAT_HELPER(_a, _b) _a##_b
234 #define CC(_a, _b) CONCAT_HELPER(_a, _b)
235 #define TCP_EVT_DBG(_evt, _args...) CC(_evt, _HANDLER)(_args)
237 #define TCP_EVT_DBG(_evt, _args...)
238 #define TCP_DBG(_fmt, _args...)
246 #define TCP_EVT_STATE_CHANGE_HANDLER(_tc, ...) \
248 ELOG_TYPE_DECLARE (_e) = \
250 .format = "state: %s", \
251 .format_args = "t4", \
252 .n_enum_strings = 11, \
267 DECLARE_ETD(_tc, _e, 1); \
268 ed->data[0] = _tc->state; \
271 #define TCP_EVT_SYN_SENT_HANDLER(_tc, ...) \
273 ELOG_TYPE_DECLARE (_e) = \
275 .format = "syn-tx: iss %u snd_una %u snd_una_max %u snd_nxt %u", \
276 .format_args = "i4i4i4i4", \
278 DECLARE_ETD(_tc, _e, 4); \
279 ed->data[0] = _tc->iss; \
280 ed->data[1] = _tc->snd_una - _tc->iss; \
281 ed->data[2] = _tc->snd_una_max - _tc->iss; \
282 ed->data[3] = _tc->snd_nxt - _tc->iss; \
283 TCP_EVT_STATE_CHANGE_HANDLER(_tc); \
286 #define TCP_EVT_SYNACK_SENT_HANDLER(_tc, ...) \
288 ELOG_TYPE_DECLARE (_e) = \
290 .format = "synack-tx: iss %u irs %u snd_una %u snd_nxt %u rcv_nxt %u",\
291 .format_args = "i4i4i4i4i4", \
293 DECLARE_ETD(_tc, _e, 5); \
294 ed->data[0] = _tc->iss; \
295 ed->data[1] = _tc->irs; \
296 ed->data[2] = _tc->snd_una - _tc->iss; \
297 ed->data[3] = _tc->snd_nxt - _tc->iss; \
298 ed->data[4] = _tc->rcv_nxt - _tc->irs; \
301 #define TCP_EVT_SYNACK_RCVD_HANDLER(_tc, ...) \
303 ELOG_TYPE_DECLARE (_e) = \
305 .format = "synack-rx: iss %u irs %u snd_una %u snd_nxt %u rcv_nxt %u",\
306 .format_args = "i4i4i4i4i4", \
308 DECLARE_ETD(_tc, _e, 5); \
309 ed->data[0] = _tc->iss; \
310 ed->data[1] = _tc->irs; \
311 ed->data[2] = _tc->snd_una - _tc->iss; \
312 ed->data[3] = _tc->snd_nxt - _tc->iss; \
313 ed->data[4] = _tc->rcv_nxt - _tc->irs; \
314 TCP_EVT_STATE_CHANGE_HANDLER(_tc); \
317 #define TCP_EVT_FIN_SENT_HANDLER(_tc, ...) \
319 ELOG_TYPE_DECLARE (_e) = \
321 .format = "fin-tx: snd_nxt %d rcv_nxt %d", \
322 .format_args = "i4i4", \
324 DECLARE_ETD(_tc, _e, 2); \
325 ed->data[0] = _tc->snd_nxt - _tc->iss; \
326 ed->data[1] = _tc->rcv_nxt - _tc->irs; \
329 #define TCP_EVT_RST_SENT_HANDLER(_tc, ...) \
331 ELOG_TYPE_DECLARE (_e) = \
333 .format = "rst-tx: snd_nxt %d rcv_nxt %d", \
334 .format_args = "i4i4", \
336 DECLARE_ETD(_tc, _e, 2); \
337 ed->data[0] = _tc->snd_nxt - _tc->iss; \
338 ed->data[1] = _tc->rcv_nxt - _tc->irs; \
339 TCP_EVT_STATE_CHANGE_HANDLER(_tc); \
342 #define TCP_EVT_FIN_RCVD_HANDLER(_tc, ...) \
344 ELOG_TYPE_DECLARE (_e) = \
346 .format = "fin-rx: snd_nxt %d rcv_nxt %d", \
347 .format_args = "i4i4", \
349 DECLARE_ETD(_tc, _e, 2); \
350 ed->data[0] = _tc->snd_nxt - _tc->iss; \
351 ed->data[1] = _tc->rcv_nxt - _tc->irs; \
354 #define TCP_EVT_RST_RCVD_HANDLER(_tc, ...) \
356 ELOG_TYPE_DECLARE (_e) = \
358 .format = "rst-rx: snd_nxt %d rcv_nxt %d", \
359 .format_args = "i4i4", \
361 DECLARE_ETD(_tc, _e, 2); \
362 ed->data[0] = _tc->snd_nxt - _tc->iss; \
363 ed->data[1] = _tc->rcv_nxt - _tc->irs; \
366 #define TCP_EVT_SYN_RXT_HANDLER(_tc, _type, ...) \
368 ELOG_TYPE_DECLARE (_e) = \
370 .format = "%s-rxt: iss %u irs %u snd_nxt %u rcv_nxt %u", \
371 .format_args = "t4i4i4i4i4", \
372 .n_enum_strings = 2, \
378 DECLARE_ETD(_tc, _e, 5); \
379 ed->data[0] = _type; \
380 ed->data[1] = _tc->iss; \
381 ed->data[2] = _tc->irs; \
382 ed->data[3] = _tc->snd_nxt - _tc->iss; \
383 ed->data[4] = _tc->rcv_nxt - _tc->irs; \
387 #define TCP_EVT_SYN_SENT_HANDLER(_tc, ...)
388 #define TCP_EVT_SYNACK_SENT_HANDLER(_tc, ...)
389 #define TCP_EVT_SYNACK_RCVD_HANDLER(_tc, ...)
390 #define TCP_EVT_SYN_RXT_HANDLER(_tc, ...)
391 #define TCP_EVT_FIN_SENT_HANDLER(_tc, ...)
392 #define TCP_EVT_RST_SENT_HANDLER(_tc, ...)
393 #define TCP_EVT_FIN_RCVD_HANDLER(_tc, ...)
394 #define TCP_EVT_RST_RCVD_HANDLER(_tc, ...)
395 #define TCP_EVT_STATE_CHANGE_HANDLER(_tc, ...)
400 #define TCP_EVT_ACK_SENT_HANDLER(_tc, ...) \
402 ELOG_TYPE_DECLARE (_e) = \
404 .format = "ack-tx: acked %u rcv_nxt %u rcv_wnd %u snd_nxt %u snd_wnd %u",\
405 .format_args = "i4i4i4i4i4", \
407 DECLARE_ETD(_tc, _e, 5); \
408 ed->data[0] = _tc->rcv_nxt - _tc->rcv_las; \
409 ed->data[1] = _tc->rcv_nxt - _tc->irs; \
410 ed->data[2] = _tc->rcv_wnd; \
411 ed->data[3] = _tc->snd_nxt - _tc->iss; \
412 ed->data[4] = _tc->snd_wnd; \
415 #define TCP_EVT_ACK_RCVD_HANDLER(_tc, ...) \
417 ELOG_TYPE_DECLARE (_e) = \
419 .format = "ack-rx: %u snd_una %u snd_wnd %u cwnd %u inflight %u", \
420 .format_args = "i4i4i4i4i4", \
422 DECLARE_ETD(_tc, _e, 5); \
423 ed->data[0] = _tc->bytes_acked; \
424 ed->data[1] = _tc->snd_una - _tc->iss; \
425 ed->data[2] = _tc->snd_wnd; \
426 ed->data[3] = _tc->cwnd; \
427 ed->data[4] = tcp_flight_size(_tc); \
430 #define TCP_EVT_PKTIZE_HANDLER(_tc, ...) \
432 ELOG_TYPE_DECLARE (_e) = \
434 .format = "tx: una %u snd_nxt %u space %u flight %u rcv_wnd %u",\
435 .format_args = "i4i4i4i4i4", \
437 DECLARE_ETD(_tc, _e, 5); \
438 ed->data[0] = _tc->snd_una - _tc->iss; \
439 ed->data[1] = _tc->snd_nxt - _tc->iss; \
440 ed->data[2] = tcp_available_output_snd_space (_tc); \
441 ed->data[3] = tcp_flight_size (_tc); \
442 ed->data[4] = _tc->rcv_wnd; \
445 #define TCP_EVT_INPUT_HANDLER(_tc, _type, _len, _written, ...) \
447 ELOG_TYPE_DECLARE (_e) = \
449 .format = "in: %s len %u written %d rcv_nxt %u rcv_wnd(o) %d", \
450 .format_args = "t4i4i4i4i4", \
451 .n_enum_strings = 2, \
457 DECLARE_ETD(_tc, _e, 5); \
458 ed->data[0] = _type; \
459 ed->data[1] = _len; \
460 ed->data[2] = _written; \
461 ed->data[3] = (_tc->rcv_nxt - _tc->irs) + _written; \
462 ed->data[4] = _tc->rcv_wnd - (_tc->rcv_nxt - _tc->rcv_las); \
465 #define TCP_EVT_TIMER_POP_HANDLER(_tc_index, _timer_id, ...) \
467 tcp_connection_t *_tc; \
468 if (_timer_id == TCP_TIMER_RETRANSMIT_SYN \
469 || _timer_id == TCP_TIMER_ESTABLISH) \
471 _tc = tcp_half_open_connection_get (_tc_index); \
475 u32 _thread_index = vlib_get_thread_index (); \
476 _tc = tcp_connection_get (_tc_index, _thread_index); \
478 ELOG_TYPE_DECLARE (_e) = \
480 .format = "timer-pop: %s (%d)", \
481 .format_args = "t4i4", \
482 .n_enum_strings = 7, \
495 DECLARE_ETD(_tc, _e, 2); \
496 ed->data[0] = _timer_id; \
497 ed->data[1] = _timer_id; \
501 clib_warning ("pop %d for unexisting connection %d", _timer_id, \
506 #define TCP_EVT_SEG_INVALID_HANDLER(_tc, _seq, _end, ...) \
508 ELOG_TYPE_DECLARE (_e) = \
510 .format = "seg-inv: seq %u end %u rcv_las %u rcv_nxt %u rcv_wnd %u",\
511 .format_args = "i4i4i4i4i4", \
513 DECLARE_ETD(_tc, _e, 5); \
514 ed->data[0] = _seq - _tc->irs; \
515 ed->data[1] = _end - _tc->irs; \
516 ed->data[2] = _tc->rcv_las - _tc->irs; \
517 ed->data[3] = _tc->rcv_nxt - _tc->irs; \
518 ed->data[4] = _tc->rcv_wnd; \
521 #define TCP_EVT_PAWS_FAIL_HANDLER(_tc, _seq, _end, ...) \
523 ELOG_TYPE_DECLARE (_e) = \
525 .format = "paws-err: seq %u end %u tsval %u tsval_recent %u", \
526 .format_args = "i4i4i4i4", \
528 DECLARE_ETD(_tc, _e, 4); \
529 ed->data[0] = _seq - _tc->irs; \
530 ed->data[1] = _end - _tc->irs; \
531 ed->data[2] = _tc->rcv_opts.tsval; \
532 ed->data[3] = _tc->tsval_recent; \
535 #define TCP_EVT_ACK_RCV_ERR_HANDLER(_tc, _type, _ack, ...) \
537 ELOG_TYPE_DECLARE (_e) = \
539 .format = "ack-err: %s ack %u snd_una %u snd_nxt %u una_max %u", \
540 .format_args = "t4i4i4i4i4", \
541 .n_enum_strings = 3, \
548 DECLARE_ETD(_tc, _e, 5); \
549 ed->data[0] = _type; \
550 ed->data[1] = _ack - _tc->iss; \
551 ed->data[2] = _tc->snd_una - _tc->iss; \
552 ed->data[3] = _tc->snd_nxt - _tc->iss; \
553 ed->data[4] = _tc->snd_una_max - _tc->iss; \
556 #define TCP_EVT_RCV_WND_SHRUNK_HANDLER(_tc, _obs, _av, ...) \
560 ELOG_TYPE_DECLARE (_e) = \
562 .format = "huh?: rcv_wnd %u obsd %u av %u rcv_nxt %u rcv_las %u", \
563 .format_args = "i4i4i4i4i4", \
565 DECLARE_ETD(_tc, _e, 5); \
566 ed->data[0] = _tc->rcv_wnd; \
567 ed->data[1] = _obs; \
569 ed->data[3] = _tc->rcv_nxt - _tc->irs; \
570 ed->data[4] = _tc->rcv_las - _tc->irs; \
574 #define TCP_EVT_ACK_SENT_HANDLER(_tc, ...)
575 #define TCP_EVT_ACK_RCVD_HANDLER(_tc, ...)
576 #define TCP_EVT_PKTIZE_HANDLER(_tc, ...)
577 #define TCP_EVT_INPUT_HANDLER(_tc, _type, _len, _written, ...)
578 #define TCP_EVT_TIMER_POP_HANDLER(_tc_index, _timer_id, ...)
579 #define TCP_EVT_SEG_INVALID_HANDLER(_tc, _seq, _end, ...)
580 #define TCP_EVT_PAWS_FAIL_HANDLER(_tc, _seq, _end, ...)
581 #define TCP_EVT_ACK_RCV_ERR_HANDLER(_tc, _type, _ack, ...)
582 #define TCP_EVT_RCV_WND_SHRUNK_HANDLER(_tc, _obs, _av, ...)
586 * State machine verbose
589 #define TCP_EVT_SND_WND_HANDLER(_tc, ...) \
591 ELOG_TYPE_DECLARE (_e) = \
593 .format = "snd-wnd update: %u ", \
594 .format_args = "i4", \
596 DECLARE_ETD(_tc, _e, 1); \
597 ed->data[0] = _tc->snd_wnd; \
600 #define TCP_EVT_OUTPUT_HANDLER(_tc, flags, n_bytes,...) \
602 ELOG_TYPE_DECLARE (_e) = \
604 .format = "out: flags %x, bytes %u", \
605 .format_args = "i4i4", \
607 DECLARE_ETD(_tc, _e, 2); \
608 ed->data[0] = flags; \
609 ed->data[1] = n_bytes; \
612 #define TCP_EVT_SND_WND_HANDLER(_tc, ...)
613 #define TCP_EVT_OUTPUT_HANDLER(_tc, flags, n_bytes,...)
622 #define TCP_EVT_CC_EVT_HANDLER(_tc, _sub_evt, ...) \
624 ELOG_TYPE_DECLARE (_e) = \
626 .format = "cc: %s wnd %u snd_cong %u rxt_bytes %u", \
627 .format_args = "t4i4i4i4", \
628 .n_enum_strings = 6, \
638 DECLARE_ETD(_tc, _e, 4); \
639 ed->data[0] = _sub_evt; \
640 ed->data[1] = tcp_available_snd_space (_tc); \
641 ed->data[2] = _tc->snd_congestion - _tc->iss; \
642 ed->data[3] = _tc->snd_rxt_bytes; \
645 #define TCP_EVT_CC_RTX_HANDLER(_tc, offset, n_bytes, ...) \
647 ELOG_TYPE_DECLARE (_e) = \
649 .format = "rxt: snd_nxt %u offset %u snd %u rxt %u", \
650 .format_args = "i4i4i4i4", \
652 DECLARE_ETD(_tc, _e, 4); \
653 ed->data[0] = _tc->snd_nxt - _tc->iss; \
654 ed->data[1] = offset; \
655 ed->data[2] = n_bytes; \
656 ed->data[3] = _tc->snd_rxt_bytes; \
659 #define TCP_EVT_DUPACK_SENT_HANDLER(_tc, ...) \
661 ELOG_TYPE_DECLARE (_e) = \
663 .format = "dack-tx: rcv_nxt %u rcv_wnd %u snd_nxt %u av_wnd %u snd_wnd %u",\
664 .format_args = "i4i4i4i4i4", \
666 DECLARE_ETD(_tc, _e, 5); \
667 ed->data[0] = _tc->rcv_nxt - _tc->irs; \
668 ed->data[1] = _tc->rcv_wnd; \
669 ed->data[2] = _tc->snd_nxt - _tc->iss; \
670 ed->data[3] = tcp_available_snd_wnd(_tc); \
671 ed->data[4] = _tc->snd_wnd; \
674 #define TCP_EVT_DUPACK_RCVD_HANDLER(_tc, ...) \
676 ELOG_TYPE_DECLARE (_e) = \
678 .format = "dack-rx: snd_una %u cwnd %u snd_wnd %u flight %u rcv_wnd %u",\
679 .format_args = "i4i4i4i4i4", \
681 DECLARE_ETD(_tc, _e, 5); \
682 ed->data[0] = _tc->snd_una - _tc->iss; \
683 ed->data[1] = _tc->cwnd; \
684 ed->data[2] = _tc->snd_wnd; \
685 ed->data[3] = tcp_flight_size(_tc); \
686 ed->data[4] = _tc->rcv_wnd; \
689 #define TCP_EVT_CC_PACK_HANDLER(_tc, ...) \
691 ELOG_TYPE_DECLARE (_e) = \
693 .format = "pack: snd_una %u snd_una_max %u", \
694 .format_args = "i4i4", \
696 DECLARE_ETD(_tc, _e, 2); \
697 ed->data[0] = _tc->snd_una - _tc->iss; \
698 ed->data[1] = _tc->snd_una_max - _tc->iss; \
701 #define TCP_EVT_CC_RTX_HANDLER(_tc, offset, n_bytes, ...)
702 #define TCP_EVT_DUPACK_SENT_HANDLER(_tc, ...)
703 #define TCP_EVT_DUPACK_RCVD_HANDLER(_tc, ...)
704 #define TCP_EVT_CC_PACK_HANDLER(_tc, ...)
705 #define TCP_EVT_CC_EVT_HANDLER(_tc, _sub_evt, ...)
709 * Congestion control stats
711 #if TCP_DEBUG_CC_STAT
713 #define STATS_INTERVAL 1
715 #define TCP_EVT_CC_RTO_STAT_HANDLER(_tc, ...) \
717 if (_tc->c_cc_stat_tstamp + STATS_INTERVAL < tcp_time_now()) \
719 ELOG_TYPE_DECLARE (_e) = \
721 .format = "rto_stat: rto %u srtt %u rttvar %u ", \
722 .format_args = "i4i4i4", \
724 DECLARE_ETD(_tc, _e, 3); \
725 ed->data[0] = _tc->rto; \
726 ed->data[1] = _tc->srtt; \
727 ed->data[2] = _tc->rttvar; \
731 #define TCP_EVT_CC_STAT_HANDLER(_tc, ...) \
733 if (_tc->c_cc_stat_tstamp + STATS_INTERVAL < tcp_time_now()) \
735 ELOG_TYPE_DECLARE (_e) = \
737 .format = "cc_stat: cwnd %u flight %u space %u ssthresh %u snd_wnd %u",\
738 .format_args = "i4i4i4i4i4", \
740 DECLARE_ETD(_tc, _e, 5); \
741 ed->data[0] = _tc->cwnd; \
742 ed->data[1] = tcp_flight_size (_tc); \
743 ed->data[2] = tcp_snd_space (_tc); \
744 ed->data[3] = _tc->ssthresh; \
745 ed->data[4] = _tc->snd_wnd; \
746 TCP_EVT_CC_RTO_STAT_HANDLER (_tc); \
747 _tc->c_cc_stat_tstamp = tcp_time_now(); \
754 #if TCP_DEBUG_BUFFER_ALLOCATION
756 #define TCP_DBG_BUFFER_ALLOC_MAYBE_FAIL(thread_index) \
758 static u32 *buffer_fail_counters; \
759 if (PREDICT_FALSE (buffer_fail_counters == 0)) \
762 vlib_thread_main_t *vtm = vlib_get_thread_main (); \
763 num_threads = 1 /* main thread */ + vtm->n_threads; \
764 vec_validate (buffer_fail_counters, num_threads - 1); \
766 if (PREDICT_FALSE (tcp_main.buffer_fail_fraction != 0.0)) \
768 if (PREDICT_TRUE (buffer_fail_counters[thread_index] > 0)) \
770 if ((1.0 / (f32) (buffer_fail_counters[thread_index])) \
771 < tcp_main.buffer_fail_fraction) \
773 buffer_fail_counters[thread_index] = 0.0000001; \
777 buffer_fail_counters[thread_index] ++; \
781 #define TCP_DBG_BUFFER_ALLOC_MAYBE_FAIL(thread_index)
785 #define TCP_EVT_CC_STAT_HANDLER(_tc, ...)
788 #endif /* SRC_VNET_TCP_TCP_DEBUG_H_ */
790 * fd.io coding-style-patch-verification: ON
793 * eval: (c-set-style "gnu")