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 (0)
23 #define TCP_DEBUG_CC (0)
24 #define TCP_DEBUG_CC_STAT (0)
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 _(CC_SCOREBOARD, "scoreboard stats") \
60 _(CC_SACKS, "snd sacks stats") \
61 _(CC_INPUT, "ooo data delivered") \
62 _(SEG_INVALID, "invalid segment") \
63 _(PAWS_FAIL, "failed paws check") \
64 _(ACK_RCV_ERR, "invalid ack") \
65 _(RCV_WND_SHRUNK, "shrunk rcv_wnd") \
69 #define _(sym, str) TCP_DBG_##sym,
74 typedef enum _tcp_dbg_evt
76 #define _(sym, str) TCP_EVT_##sym,
83 #define TRANSPORT_DEBUG (1)
86 * Infra and evt track setup
89 #define TCP_DBG(_fmt, _args...) clib_warning (_fmt, ##_args)
91 #define DECLARE_ETD(_tc, _e, _size) \
96 ed = ELOG_TRACK_DATA (&vlib_global_main.elog_main, \
97 _e, _tc->c_elog_track)
99 #define TCP_DBG_IP_TAG_LCL(_tc) \
103 ELOG_TYPE_DECLARE (_e) = \
105 .format = "lcl: %d.%d.%d.%d:%d", \
106 .format_args = "i4i4i4i4i4", \
108 DECLARE_ETD(_tc, _e, 5); \
109 ed->data[0] = _tc->c_lcl_ip.ip4.as_u8[0]; \
110 ed->data[1] = _tc->c_lcl_ip.ip4.as_u8[1]; \
111 ed->data[2] = _tc->c_lcl_ip.ip4.as_u8[2]; \
112 ed->data[3] = _tc->c_lcl_ip.ip4.as_u8[3]; \
113 ed->data[4] = clib_net_to_host_u16(_tc->c_lcl_port); \
117 #define TCP_DBG_IP_TAG_RMT(_tc) \
121 ELOG_TYPE_DECLARE (_e) = \
123 .format = "rmt: %d.%d.%d.%d:%d", \
124 .format_args = "i4i4i4i4i4", \
126 DECLARE_ETD(_tc, _e, 5); \
127 ed->data[0] = _tc->c_rmt_ip.ip4.as_u8[0]; \
128 ed->data[1] = _tc->c_rmt_ip.ip4.as_u8[1]; \
129 ed->data[2] = _tc->c_rmt_ip.ip4.as_u8[2]; \
130 ed->data[3] = _tc->c_rmt_ip.ip4.as_u8[3]; \
131 ed->data[4] = clib_net_to_host_u16(_tc->c_rmt_port); \
135 #define TCP_EVT_INIT_HANDLER(_tc, _is_l, ...) \
137 char *_fmt = _is_l ? "l[%d].%d:%d%c" : "[%d].%d:%d->.%d:%d%c"; \
140 _tc->c_elog_track.name = \
141 (char *) format (0, _fmt, _tc->c_thread_index, \
142 _tc->c_lcl_ip.ip4.as_u8[3], \
143 clib_net_to_host_u16(_tc->c_lcl_port), \
144 _tc->c_rmt_ip.ip4.as_u8[3], \
145 clib_net_to_host_u16(_tc->c_rmt_port), 0); \
148 _tc->c_elog_track.name = \
149 (char *) format (0, _fmt, _tc->c_thread_index, \
150 _tc->c_lcl_ip.ip6.as_u8[15], \
151 clib_net_to_host_u16(_tc->c_lcl_port), \
152 _tc->c_rmt_ip.ip6.as_u8[15], \
153 clib_net_to_host_u16(_tc->c_rmt_port), 0); \
154 elog_track_register (&vlib_global_main.elog_main, &_tc->c_elog_track);\
155 TCP_DBG_IP_TAG_LCL(_tc); \
156 TCP_DBG_IP_TAG_RMT(_tc); \
159 #define TCP_EVT_DEALLOC_HANDLER(_tc, ...) \
161 vec_free (_tc->c_elog_track.name); \
164 #define TCP_EVT_OPEN_HANDLER(_tc, ...) \
166 TCP_EVT_INIT_HANDLER(_tc, 0); \
167 ELOG_TYPE_DECLARE (_e) = \
169 .format = "open: index %d", \
170 .format_args = "i4", \
172 DECLARE_ETD(_tc, _e, 1); \
173 ed->data[0] = _tc->c_c_index; \
176 #define TCP_EVT_CLOSE_HANDLER(_tc, ...) \
178 ELOG_TYPE_DECLARE (_e) = \
180 .format = "close: %d", \
181 .format_args = "i4", \
183 DECLARE_ETD(_tc, _e, 1); \
184 ed->data[0] = _tc->c_c_index; \
187 #define TCP_EVT_BIND_HANDLER(_tc, ...) \
189 TCP_EVT_INIT_HANDLER(_tc, 1); \
190 ELOG_TYPE_DECLARE (_e) = \
192 .format = "bind: listener %d", \
194 DECLARE_ETD(_tc, _e, 1); \
195 ed->data[0] = _tc->c_c_index; \
198 #define TCP_EVT_SYN_RCVD_HANDLER(_tc,_init, ...) \
201 TCP_EVT_INIT_HANDLER(_tc, 0); \
202 ELOG_TYPE_DECLARE (_e) = \
204 .format = "syn-rx: irs %u", \
205 .format_args = "i4", \
207 DECLARE_ETD(_tc, _e, 1); \
208 ed->data[0] = _tc->irs; \
209 TCP_EVT_STATE_CHANGE_HANDLER(_tc); \
212 #define TCP_EVT_UNBIND_HANDLER(_tc, ...) \
214 TCP_EVT_DEALLOC_HANDLER(_tc); \
215 ELOG_TYPE_DECLARE (_e) = \
217 .format = "unbind: listener %d", \
219 DECLARE_ETD(_tc, _e, 1); \
220 ed->data[0] = _tc->c_c_index; \
221 TCP_EVT_DEALLOC_HANDLER(_tc); \
224 #define TCP_EVT_DELETE_HANDLER(_tc, ...) \
226 ELOG_TYPE_DECLARE (_e) = \
228 .format = "delete: %d", \
229 .format_args = "i4", \
231 DECLARE_ETD(_tc, _e, 1); \
232 ed->data[0] = _tc->c_c_index; \
233 TCP_EVT_DEALLOC_HANDLER(_tc); \
236 #define CONCAT_HELPER(_a, _b) _a##_b
237 #define CC(_a, _b) CONCAT_HELPER(_a, _b)
238 #define TCP_EVT_DBG(_evt, _args...) CC(_evt, _HANDLER)(_args)
240 #define TCP_EVT_DBG(_evt, _args...)
241 #define TCP_DBG(_fmt, _args...)
249 #define TCP_EVT_STATE_CHANGE_HANDLER(_tc, ...) \
251 ELOG_TYPE_DECLARE (_e) = \
253 .format = "state: %s", \
254 .format_args = "t4", \
255 .n_enum_strings = 11, \
270 DECLARE_ETD(_tc, _e, 1); \
271 ed->data[0] = _tc->state; \
274 #define TCP_EVT_SYN_SENT_HANDLER(_tc, ...) \
276 ELOG_TYPE_DECLARE (_e) = \
278 .format = "syn-tx: iss %u snd_una %u snd_una_max %u snd_nxt %u", \
279 .format_args = "i4i4i4i4", \
281 DECLARE_ETD(_tc, _e, 4); \
282 ed->data[0] = _tc->iss; \
283 ed->data[1] = _tc->snd_una - _tc->iss; \
284 ed->data[2] = _tc->snd_una_max - _tc->iss; \
285 ed->data[3] = _tc->snd_nxt - _tc->iss; \
286 TCP_EVT_STATE_CHANGE_HANDLER(_tc); \
289 #define TCP_EVT_SYNACK_SENT_HANDLER(_tc, ...) \
291 ELOG_TYPE_DECLARE (_e) = \
293 .format = "synack-tx: iss %u irs %u snd_una %u snd_nxt %u rcv_nxt %u",\
294 .format_args = "i4i4i4i4i4", \
296 DECLARE_ETD(_tc, _e, 5); \
297 ed->data[0] = _tc->iss; \
298 ed->data[1] = _tc->irs; \
299 ed->data[2] = _tc->snd_una - _tc->iss; \
300 ed->data[3] = _tc->snd_nxt - _tc->iss; \
301 ed->data[4] = _tc->rcv_nxt - _tc->irs; \
304 #define TCP_EVT_SYNACK_RCVD_HANDLER(_tc, ...) \
306 ELOG_TYPE_DECLARE (_e) = \
308 .format = "synack-rx: iss %u irs %u snd_una %u snd_nxt %u rcv_nxt %u",\
309 .format_args = "i4i4i4i4i4", \
311 DECLARE_ETD(_tc, _e, 5); \
312 ed->data[0] = _tc->iss; \
313 ed->data[1] = _tc->irs; \
314 ed->data[2] = _tc->snd_una - _tc->iss; \
315 ed->data[3] = _tc->snd_nxt - _tc->iss; \
316 ed->data[4] = _tc->rcv_nxt - _tc->irs; \
317 TCP_EVT_STATE_CHANGE_HANDLER(_tc); \
320 #define TCP_EVT_FIN_SENT_HANDLER(_tc, ...) \
322 ELOG_TYPE_DECLARE (_e) = \
324 .format = "fin-tx: snd_nxt %d rcv_nxt %d", \
325 .format_args = "i4i4", \
327 DECLARE_ETD(_tc, _e, 2); \
328 ed->data[0] = _tc->snd_nxt - _tc->iss; \
329 ed->data[1] = _tc->rcv_nxt - _tc->irs; \
332 #define TCP_EVT_RST_SENT_HANDLER(_tc, ...) \
336 ELOG_TYPE_DECLARE (_e) = \
338 .format = "rst-tx: snd_nxt %d rcv_nxt %d", \
339 .format_args = "i4i4", \
341 DECLARE_ETD(_tc, _e, 2); \
342 ed->data[0] = _tc->snd_nxt - _tc->iss; \
343 ed->data[1] = _tc->rcv_nxt - _tc->irs; \
344 TCP_EVT_STATE_CHANGE_HANDLER(_tc); \
348 #define TCP_EVT_FIN_RCVD_HANDLER(_tc, ...) \
350 ELOG_TYPE_DECLARE (_e) = \
352 .format = "fin-rx: snd_nxt %d rcv_nxt %d", \
353 .format_args = "i4i4", \
355 DECLARE_ETD(_tc, _e, 2); \
356 ed->data[0] = _tc->snd_nxt - _tc->iss; \
357 ed->data[1] = _tc->rcv_nxt - _tc->irs; \
360 #define TCP_EVT_RST_RCVD_HANDLER(_tc, ...) \
362 ELOG_TYPE_DECLARE (_e) = \
364 .format = "rst-rx: snd_nxt %d rcv_nxt %d", \
365 .format_args = "i4i4", \
367 DECLARE_ETD(_tc, _e, 2); \
368 ed->data[0] = _tc->snd_nxt - _tc->iss; \
369 ed->data[1] = _tc->rcv_nxt - _tc->irs; \
372 #define TCP_EVT_SYN_RXT_HANDLER(_tc, _type, ...) \
374 ELOG_TYPE_DECLARE (_e) = \
376 .format = "%s-rxt: iss %u irs %u snd_nxt %u rcv_nxt %u", \
377 .format_args = "t4i4i4i4i4", \
378 .n_enum_strings = 2, \
384 DECLARE_ETD(_tc, _e, 5); \
385 ed->data[0] = _type; \
386 ed->data[1] = _tc->iss; \
387 ed->data[2] = _tc->irs; \
388 ed->data[3] = _tc->snd_nxt - _tc->iss; \
389 ed->data[4] = _tc->rcv_nxt - _tc->irs; \
392 #define TCP_EVT_TIMER_POP_HANDLER(_tc_index, _timer_id, ...) \
394 tcp_connection_t *_tc; \
395 if (_timer_id == TCP_TIMER_RETRANSMIT_SYN \
396 || _timer_id == TCP_TIMER_ESTABLISH_AO) \
398 _tc = tcp_half_open_connection_get (_tc_index); \
402 u32 _thread_index = vlib_get_thread_index (); \
403 _tc = tcp_connection_get (_tc_index, _thread_index); \
405 ELOG_TYPE_DECLARE (_e) = \
407 .format = "timer-pop: %s (%d)", \
408 .format_args = "t4i4", \
409 .n_enum_strings = 8, \
423 DECLARE_ETD(_tc, _e, 2); \
424 ed->data[0] = _timer_id; \
425 ed->data[1] = _timer_id; \
429 clib_warning ("pop %d for unexisting connection %d", _timer_id, \
435 #define TCP_EVT_SYN_SENT_HANDLER(_tc, ...)
436 #define TCP_EVT_SYNACK_SENT_HANDLER(_tc, ...)
437 #define TCP_EVT_SYNACK_RCVD_HANDLER(_tc, ...)
438 #define TCP_EVT_SYN_RXT_HANDLER(_tc, ...)
439 #define TCP_EVT_FIN_SENT_HANDLER(_tc, ...)
440 #define TCP_EVT_RST_SENT_HANDLER(_tc, ...)
441 #define TCP_EVT_FIN_RCVD_HANDLER(_tc, ...)
442 #define TCP_EVT_RST_RCVD_HANDLER(_tc, ...)
443 #define TCP_EVT_STATE_CHANGE_HANDLER(_tc, ...)
444 #define TCP_EVT_TIMER_POP_HANDLER(_tc_index, _timer_id, ...)
448 #define TCP_EVT_SEG_INVALID_HANDLER(_tc, _btcp, ...) \
450 ELOG_TYPE_DECLARE (_e) = \
452 .format = "seg-inv: seq %u end %u rcv_las %u rcv_nxt %u rcv_wnd %u",\
453 .format_args = "i4i4i4i4i4", \
455 DECLARE_ETD(_tc, _e, 5); \
456 ed->data[0] = _btcp.seq_number - _tc->irs; \
457 ed->data[1] = _btcp.seq_end - _tc->irs; \
458 ed->data[2] = _tc->rcv_las - _tc->irs; \
459 ed->data[3] = _tc->rcv_nxt - _tc->irs; \
460 ed->data[4] = _tc->rcv_wnd; \
463 #define TCP_EVT_PAWS_FAIL_HANDLER(_tc, _seq, _end, ...) \
465 ELOG_TYPE_DECLARE (_e) = \
467 .format = "paws-err: seq %u end %u tsval %u tsval_recent %u", \
468 .format_args = "i4i4i4i4", \
470 DECLARE_ETD(_tc, _e, 4); \
471 ed->data[0] = _seq - _tc->irs; \
472 ed->data[1] = _end - _tc->irs; \
473 ed->data[2] = _tc->rcv_opts.tsval; \
474 ed->data[3] = _tc->tsval_recent; \
477 #define TCP_EVT_ACK_RCV_ERR_HANDLER(_tc, _type, _ack, ...) \
479 ELOG_TYPE_DECLARE (_e) = \
481 .format = "ack-err: %s ack %u snd_una %u snd_nxt %u una_max %u", \
482 .format_args = "t4i4i4i4i4", \
483 .n_enum_strings = 3, \
490 DECLARE_ETD(_tc, _e, 5); \
491 ed->data[0] = _type; \
492 ed->data[1] = _ack - _tc->iss; \
493 ed->data[2] = _tc->snd_una - _tc->iss; \
494 ed->data[3] = _tc->snd_nxt - _tc->iss; \
495 ed->data[4] = _tc->snd_una_max - _tc->iss; \
498 #define TCP_EVT_RCV_WND_SHRUNK_HANDLER(_tc, _obs, _av, ...) \
502 ELOG_TYPE_DECLARE (_e) = \
504 .format = "huh?: rcv_wnd %u obsd %u av %u rcv_nxt %u rcv_las %u", \
505 .format_args = "i4i4i4i4i4", \
507 DECLARE_ETD(_tc, _e, 5); \
508 ed->data[0] = _tc->rcv_wnd; \
509 ed->data[1] = _obs; \
511 ed->data[3] = _tc->rcv_nxt - _tc->irs; \
512 ed->data[4] = _tc->rcv_las - _tc->irs; \
516 #define TCP_EVT_SEG_INVALID_HANDLER(_tc, _btcp, ...)
517 #define TCP_EVT_PAWS_FAIL_HANDLER(_tc, _seq, _end, ...)
518 #define TCP_EVT_ACK_RCV_ERR_HANDLER(_tc, _type, _ack, ...)
519 #define TCP_EVT_RCV_WND_SHRUNK_HANDLER(_tc, _obs, _av, ...)
524 #define TCP_EVT_ACK_SENT_HANDLER(_tc, ...) \
526 ELOG_TYPE_DECLARE (_e) = \
528 .format = "ack-tx: acked %u rcv_nxt %u rcv_wnd %u snd_nxt %u snd_wnd %u",\
529 .format_args = "i4i4i4i4i4", \
531 DECLARE_ETD(_tc, _e, 5); \
532 ed->data[0] = _tc->rcv_nxt - _tc->rcv_las; \
533 ed->data[1] = _tc->rcv_nxt - _tc->irs; \
534 ed->data[2] = _tc->rcv_wnd; \
535 ed->data[3] = _tc->snd_nxt - _tc->iss; \
536 ed->data[4] = _tc->snd_wnd; \
539 #define TCP_EVT_ACK_RCVD_HANDLER(_tc, ...) \
541 ELOG_TYPE_DECLARE (_e) = \
543 .format = "ack-rx: %u snd_una %u snd_wnd %u cwnd %u inflight %u", \
544 .format_args = "i4i4i4i4i4", \
546 DECLARE_ETD(_tc, _e, 5); \
547 ed->data[0] = _tc->bytes_acked; \
548 ed->data[1] = _tc->snd_una - _tc->iss; \
549 ed->data[2] = _tc->snd_wnd; \
550 ed->data[3] = _tc->cwnd; \
551 ed->data[4] = tcp_flight_size(_tc); \
554 #define TCP_EVT_PKTIZE_HANDLER(_tc, ...) \
556 ELOG_TYPE_DECLARE (_e) = \
558 .format = "tx: una %u snd_nxt %u space %u flight %u rcv_wnd %u",\
559 .format_args = "i4i4i4i4i4", \
561 DECLARE_ETD(_tc, _e, 5); \
562 ed->data[0] = _tc->snd_una - _tc->iss; \
563 ed->data[1] = _tc->snd_nxt - _tc->iss; \
564 ed->data[2] = tcp_available_output_snd_space (_tc); \
565 ed->data[3] = tcp_flight_size (_tc); \
566 ed->data[4] = _tc->rcv_wnd; \
569 #define TCP_EVT_INPUT_HANDLER(_tc, _type, _len, _written, ...) \
571 ELOG_TYPE_DECLARE (_e) = \
573 .format = "in: %s len %u written %d rcv_nxt %u rcv_wnd(o) %d", \
574 .format_args = "t4i4i4i4i4", \
575 .n_enum_strings = 2, \
581 DECLARE_ETD(_tc, _e, 5); \
582 ed->data[0] = _type; \
583 ed->data[1] = _len; \
584 ed->data[2] = _written; \
585 ed->data[3] = (_tc->rcv_nxt - _tc->irs) + _written; \
586 ed->data[4] = _tc->rcv_wnd - (_tc->rcv_nxt - _tc->rcv_las); \
590 #define TCP_EVT_ACK_SENT_HANDLER(_tc, ...)
591 #define TCP_EVT_ACK_RCVD_HANDLER(_tc, ...)
592 #define TCP_EVT_PKTIZE_HANDLER(_tc, ...)
593 #define TCP_EVT_INPUT_HANDLER(_tc, _type, _len, _written, ...)
597 * State machine verbose
600 #define TCP_EVT_SND_WND_HANDLER(_tc, ...) \
602 ELOG_TYPE_DECLARE (_e) = \
604 .format = "snd-wnd update: %u ", \
605 .format_args = "i4", \
607 DECLARE_ETD(_tc, _e, 1); \
608 ed->data[0] = _tc->snd_wnd; \
611 #define TCP_EVT_OUTPUT_HANDLER(_tc, flags, n_bytes,...) \
613 ELOG_TYPE_DECLARE (_e) = \
615 .format = "out: flags %x, bytes %u", \
616 .format_args = "i4i4", \
618 DECLARE_ETD(_tc, _e, 2); \
619 ed->data[0] = flags; \
620 ed->data[1] = n_bytes; \
623 #define TCP_EVT_SND_WND_HANDLER(_tc, ...)
624 #define TCP_EVT_OUTPUT_HANDLER(_tc, flags, n_bytes,...)
633 #define TCP_EVT_CC_EVT_PRINT(_tc, _sub_evt) \
635 ELOG_TYPE_DECLARE (_e) = \
637 .format = "cc: %s snd_space %u snd_una %u out %u flight %u", \
638 .format_args = "t4i4i4i4i4", \
639 .n_enum_strings = 7, \
650 DECLARE_ETD(_tc, _e, 5); \
651 ed->data[0] = _sub_evt; \
652 ed->data[1] = tcp_available_cc_snd_space (_tc); \
653 ed->data[2] = _tc->snd_una - _tc->iss; \
654 ed->data[3] = tcp_bytes_out(_tc); \
655 ed->data[4] = tcp_flight_size (_tc); \
658 #define TCP_EVT_CC_EVT_HANDLER(_tc, _sub_evt, ...) \
660 if (_tc->snd_una != _tc->iss) \
661 TCP_EVT_CC_STAT_PRINT (_tc); \
662 if ((_sub_evt <= 1 && TCP_DEBUG_CC > 1) \
663 || (_sub_evt > 1 && TCP_DEBUG_CC > 0)) \
664 TCP_EVT_CC_EVT_PRINT (_tc, _sub_evt); \
667 #define TCP_EVT_CC_EVT_HANDLER(_tc, _sub_evt, ...) \
672 #define TCP_EVT_CC_RTX_HANDLER(_tc, offset, n_bytes, ...) \
674 ELOG_TYPE_DECLARE (_e) = \
676 .format = "rxt: snd_nxt %u offset %u snd %u rxt %u", \
677 .format_args = "i4i4i4i4", \
679 DECLARE_ETD(_tc, _e, 4); \
680 ed->data[0] = _tc->snd_nxt - _tc->iss; \
681 ed->data[1] = offset; \
682 ed->data[2] = n_bytes; \
683 ed->data[3] = _tc->snd_rxt_bytes; \
686 #define TCP_EVT_DUPACK_SENT_HANDLER(_tc, _btcp, ...) \
688 ELOG_TYPE_DECLARE (_e) = \
690 .format = "dack-tx: rcv_nxt %u seq %u rcv_wnd %u snd_nxt %u av_wnd %u",\
691 .format_args = "i4i4i4i4i4", \
693 DECLARE_ETD(_tc, _e, 5); \
694 ed->data[0] = _tc->rcv_nxt - _tc->irs; \
695 ed->data[1] = _btcp.seq_number - _tc->irs; \
696 ed->data[2] = _tc->rcv_wnd; \
697 ed->data[3] = _tc->snd_nxt - _tc->iss; \
698 ed->data[4] = tcp_available_snd_wnd(_tc); \
701 #define TCP_EVT_DUPACK_RCVD_HANDLER(_tc, ...) \
703 ELOG_TYPE_DECLARE (_e) = \
705 .format = "dack-rx: snd_una %u cwnd %u snd_wnd %u flight %u rcv_wnd %u",\
706 .format_args = "i4i4i4i4i4", \
708 DECLARE_ETD(_tc, _e, 5); \
709 ed->data[0] = _tc->snd_una - _tc->iss; \
710 ed->data[1] = _tc->cwnd; \
711 ed->data[2] = _tc->snd_wnd; \
712 ed->data[3] = tcp_flight_size(_tc); \
713 ed->data[4] = _tc->rcv_wnd; \
716 #define TCP_EVT_CC_PACK_HANDLER(_tc, ...) \
718 ELOG_TYPE_DECLARE (_e) = \
720 .format = "pack: snd_una %u snd_una_max %u", \
721 .format_args = "i4i4", \
723 DECLARE_ETD(_tc, _e, 2); \
724 ed->data[0] = _tc->snd_una - _tc->iss; \
725 ed->data[1] = _tc->snd_una_max - _tc->iss; \
727 #define TCP_EVT_CC_SCOREBOARD_HANDLER(_tc, ...) \
729 if (TCP_DEBUG_CC > 1 && _tc->sack_sb.last_sacked_bytes) \
731 ELOG_TYPE_DECLARE (_e) = \
733 .format = "sb1: holes %u lost %u sacked %u high %u highrxt %u", \
734 .format_args = "i4i4i4i4i4", \
736 DECLARE_ETD(_tc, _e, 5); \
737 ed->data[0] = pool_elts(_tc->sack_sb.holes); \
738 ed->data[1] = _tc->sack_sb.lost_bytes; \
739 ed->data[2] = _tc->sack_sb.sacked_bytes; \
740 ed->data[3] = _tc->sack_sb.high_sacked - _tc->iss; \
741 ed->data[4] = _tc->sack_sb.high_rxt - _tc->iss; \
743 if (TCP_DEBUG_CC > 1 && _tc->sack_sb.last_sacked_bytes) \
745 sack_scoreboard_hole_t *hole; \
746 hole = scoreboard_first_hole (&_tc->sack_sb); \
747 ELOG_TYPE_DECLARE (_e) = \
749 .format = "sb2: first start: %u end %u last start %u end %u", \
750 .format_args = "i4i4i4i4", \
752 DECLARE_ETD(_tc, _e, 4); \
753 ed->data[0] = hole ? hole->start - _tc->iss : 0; \
754 ed->data[1] = hole ? hole->end - _tc->iss : 0; \
755 hole = scoreboard_last_hole (&_tc->sack_sb); \
756 ed->data[2] = hole ? hole->start - _tc->iss : 0; \
757 ed->data[3] = hole ? hole->end - _tc->iss : 0; \
760 #define TCP_EVT_CC_SACKS_HANDLER(_tc, ...) \
762 if (TCP_DEBUG_CC > 1) \
764 ELOG_TYPE_DECLARE (_e) = \
766 .format = "sacks: blocks %u bytes %u", \
767 .format_args = "i4i4", \
769 DECLARE_ETD(_tc, _e, 2); \
770 ed->data[0] = vec_len (_tc->snd_sacks); \
771 ed->data[1] = tcp_sack_list_bytes (_tc); \
774 #define TCP_EVT_CC_INPUT_HANDLER(_tc, _len, _written, ...) \
776 ELOG_TYPE_DECLARE (_e) = \
778 .format = "cc input: len %u written %d rcv_nxt %u rcv_wnd(o) %d", \
779 .format_args = "i4i4i4i4", \
781 DECLARE_ETD(_tc, _e, 4); \
782 ed->data[0] = _len; \
783 ed->data[1] = _written; \
784 ed->data[2] = _tc->rcv_nxt - _tc->irs; \
785 ed->data[3] = _tc->rcv_wnd - (_tc->rcv_nxt - _tc->rcv_las); \
788 #define TCP_EVT_CC_RTX_HANDLER(_tc, offset, n_bytes, ...)
789 #define TCP_EVT_DUPACK_SENT_HANDLER(_tc, _btcp, ...)
790 #define TCP_EVT_DUPACK_RCVD_HANDLER(_tc, ...)
791 #define TCP_EVT_CC_PACK_HANDLER(_tc, ...)
792 #define TCP_EVT_CC_SCOREBOARD_HANDLER(_tc, ...)
793 #define TCP_EVT_CC_SACKS_HANDLER(_tc, ...)
794 #define TCP_EVT_CC_INPUT_HANDLER(_tc, _len, _written, ...)
798 * Congestion control stats
800 #if TCP_DEBUG_CC_STAT
802 #define STATS_INTERVAL 1
804 #define tcp_cc_time_to_print_stats(_tc) \
805 _tc->c_cc_stat_tstamp + STATS_INTERVAL < tcp_time_now() \
806 || tcp_in_fastrecovery (_tc) \
808 #define TCP_EVT_CC_RTO_STAT_PRINT(_tc) \
810 ELOG_TYPE_DECLARE (_e) = \
812 .format = "rcv_stat: rto %u srtt %u mrtt-us %u rttvar %u", \
813 .format_args = "i4i4i4i4", \
815 DECLARE_ETD(_tc, _e, 4); \
816 ed->data[0] = _tc->rto; \
817 ed->data[1] = _tc->srtt; \
818 ed->data[2] = (u32) (_tc->mrtt_us * 1e6); \
819 ed->data[3] = _tc->rttvar; \
822 #define TCP_EVT_CC_RTO_STAT_HANDLER(_tc, ...) \
824 if (tcp_cc_time_to_print_stats (_tc)) \
826 TCP_EVT_CC_RTO_STAT_PRINT (_tc); \
827 _tc->c_cc_stat_tstamp = tcp_time_now (); \
831 #define TCP_EVT_CC_SND_STAT_PRINT(_tc) \
833 ELOG_TYPE_DECLARE (_e) = \
835 .format = "snd_stat: cc_space %u sacked %u lost %u out %u rxt %u", \
836 .format_args = "i4i4i4i4i4", \
838 DECLARE_ETD(_tc, _e, 5); \
839 ed->data[0] = tcp_available_cc_snd_space (_tc); \
840 ed->data[1] = _tc->sack_sb.sacked_bytes; \
841 ed->data[2] = _tc->sack_sb.lost_bytes; \
842 ed->data[3] = tcp_bytes_out (_tc); \
843 ed->data[3] = _tc->snd_rxt_bytes; \
846 #define TCP_EVT_CC_SND_STAT_HANDLER(_tc, ...) \
848 if (tcp_cc_time_to_print_stats (_tc)) \
850 TCP_EVT_CC_SND_STAT_PRINT(_tc); \
851 _tc->c_cc_stat_tstamp = tcp_time_now (); \
855 #define TCP_EVT_CC_STAT_PRINT(_tc) \
857 ELOG_TYPE_DECLARE (_e) = \
859 .format = "cc_stat: cwnd %u flight %u space %u ssthresh %u snd_wnd %u",\
860 .format_args = "i4i4i4i4i4", \
862 DECLARE_ETD(_tc, _e, 5); \
863 ed->data[0] = _tc->cwnd; \
864 ed->data[1] = tcp_flight_size (_tc); \
865 ed->data[2] = tcp_snd_space (_tc); \
866 ed->data[3] = _tc->ssthresh; \
867 ed->data[4] = _tc->snd_wnd; \
868 TCP_EVT_CC_RTO_STAT_PRINT (_tc); \
869 TCP_EVT_CC_SND_STAT_PRINT (_tc); \
872 #define TCP_EVT_CC_STAT_HANDLER(_tc, ...) \
874 if (tcp_cc_time_to_print_stats (_tc)) \
876 TCP_EVT_CC_STAT_PRINT (_tc); \
877 _tc->c_cc_stat_tstamp = tcp_time_now(); \
881 #define TCP_EVT_CC_STAT_HANDLER(_tc, ...)
882 #define TCP_EVT_CC_STAT_PRINT(_tc)
888 #if TCP_DEBUG_BUFFER_ALLOCATION
890 #define TCP_DBG_BUFFER_ALLOC_MAYBE_FAIL(thread_index) \
892 static u32 *buffer_fail_counters; \
893 if (PREDICT_FALSE (buffer_fail_counters == 0)) \
896 vlib_thread_main_t *vtm = vlib_get_thread_main (); \
897 num_threads = 1 /* main thread */ + vtm->n_threads; \
898 vec_validate (buffer_fail_counters, num_threads - 1); \
900 if (PREDICT_FALSE (tcp_main.buffer_fail_fraction != 0.0)) \
902 if (PREDICT_TRUE (buffer_fail_counters[thread_index] > 0)) \
904 if ((1.0 / (f32) (buffer_fail_counters[thread_index])) \
905 < tcp_main.buffer_fail_fraction) \
907 buffer_fail_counters[thread_index] = 0.0000001; \
911 buffer_fail_counters[thread_index] ++; \
915 #define TCP_DBG_BUFFER_ALLOC_MAYBE_FAIL(thread_index)
918 #endif /* SRC_VNET_TCP_TCP_DEBUG_H_ */
920 * fd.io coding-style-patch-verification: ON
923 * eval: (c-set-style "gnu")