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.
15 #include <vnet/tcp/tcp.h>
17 #define TCP_TEST_I(_cond, _comment, _args...) \
19 int _evald = (_cond); \
21 fformat(stderr, "FAIL:%d: " _comment "\n", \
24 fformat(stderr, "PASS:%d: " _comment "\n", \
30 #define TCP_TEST(_cond, _comment, _args...) \
32 if (!TCP_TEST_I(_cond, _comment, ##_args)) { \
40 tcp_connection_t _tc, *tc = &_tc;
41 sack_scoreboard_t *sb = &tc->sack_sb;
42 sack_block_t *sacks = 0, block;
43 sack_scoreboard_hole_t *hole;
46 memset (tc, 0, sizeof (*tc));
49 tc->snd_una_max = 1000;
51 tc->opt.flags |= TCP_OPTS_FLAG_SACK;
52 scoreboard_init (&tc->sack_sb);
54 for (i = 0; i < 1000 / 100; i++)
56 block.start = i * 100;
57 block.end = (i + 1) * 100;
58 vec_add1 (sacks, block);
65 for (i = 0; i < 1000 / 200; i++)
67 vec_add1 (tc->opt.sacks, sacks[i * 2]);
69 tc->opt.n_sack_blocks = vec_len (tc->opt.sacks);
70 tcp_rcv_sacks (tc, 0);
72 TCP_TEST ((pool_elts (sb->holes) == 5),
73 "scoreboard has %d elements", pool_elts (sb->holes));
75 /* First SACK block should be rejected */
76 hole = scoreboard_first_hole (sb);
77 TCP_TEST ((hole->start == 0 && hole->end == 200),
78 "first hole start %u end %u", hole->start, hole->end);
79 hole = scoreboard_last_hole (sb);
80 TCP_TEST ((hole->start == 900 && hole->end == 1000),
81 "last hole start %u end %u", hole->start, hole->end);
82 TCP_TEST ((sb->sacked_bytes == 400), "sacked bytes %d", sb->sacked_bytes);
83 TCP_TEST ((sb->snd_una_adv == 0), "snd_una_adv %u", sb->snd_una_adv);
84 TCP_TEST ((sb->last_sacked_bytes == 400),
85 "last sacked bytes %d", sb->last_sacked_bytes);
91 vec_reset_length (tc->opt.sacks);
92 for (i = 0; i < 1000 / 200; i++)
94 vec_add1 (tc->opt.sacks, sacks[i * 2 + 1]);
96 tc->opt.n_sack_blocks = vec_len (tc->opt.sacks);
97 tcp_rcv_sacks (tc, 0);
99 hole = scoreboard_first_hole (sb);
100 TCP_TEST ((pool_elts (sb->holes) == 1),
101 "scoreboard has %d holes", pool_elts (sb->holes));
102 TCP_TEST ((hole->start == 0 && hole->end == 100),
103 "first hole start %u end %u", hole->start, hole->end);
104 TCP_TEST ((sb->sacked_bytes == 900), "sacked bytes %d", sb->sacked_bytes);
105 TCP_TEST ((sb->snd_una_adv == 0), "snd_una_adv %u", sb->snd_una_adv);
106 TCP_TEST ((sb->max_byte_sacked == 1000),
107 "max sacked byte %u", sb->max_byte_sacked);
108 TCP_TEST ((sb->last_sacked_bytes == 500),
109 "last sacked bytes %d", sb->last_sacked_bytes);
112 * Ack until byte 100, all bytes are now acked + sacked
114 tcp_rcv_sacks (tc, 100);
116 TCP_TEST ((pool_elts (sb->holes) == 0),
117 "scoreboard has %d elements", pool_elts (sb->holes));
118 TCP_TEST ((sb->snd_una_adv == 900),
119 "snd_una_adv after ack %u", sb->snd_una_adv);
120 TCP_TEST ((sb->max_byte_sacked == 1000),
121 "max sacked byte %u", sb->max_byte_sacked);
122 TCP_TEST ((sb->sacked_bytes == 0), "sacked bytes %d", sb->sacked_bytes);
123 TCP_TEST ((sb->last_sacked_bytes == 0),
124 "last sacked bytes %d", sb->last_sacked_bytes);
130 vec_reset_length (tc->opt.sacks);
134 vec_add1 (tc->opt.sacks, block);
136 tc->snd_una_max = 1500;
139 tcp_rcv_sacks (tc, 1000);
141 TCP_TEST ((sb->snd_una_adv == 0),
142 "snd_una_adv after ack %u", sb->snd_una_adv);
143 TCP_TEST ((pool_elts (sb->holes) == 2),
144 "scoreboard has %d holes", pool_elts (sb->holes));
145 hole = scoreboard_first_hole (sb);
146 TCP_TEST ((hole->start == 1000 && hole->end == 1200),
147 "first hole start %u end %u", hole->start, hole->end);
148 hole = scoreboard_last_hole (sb);
149 TCP_TEST ((hole->start == 1300 && hole->end == 1500),
150 "last hole start %u end %u", hole->start, hole->end);
151 TCP_TEST ((sb->sacked_bytes == 100), "sacked bytes %d", sb->sacked_bytes);
157 vec_reset_length (tc->opt.sacks);
158 tcp_rcv_sacks (tc, 1200);
160 TCP_TEST ((sb->snd_una_adv == 100),
161 "snd_una_adv after ack %u", sb->snd_una_adv);
162 TCP_TEST ((sb->sacked_bytes == 0), "sacked bytes %d", sb->sacked_bytes);
163 TCP_TEST ((pool_elts (sb->holes) == 1),
164 "scoreboard has %d elements", pool_elts (sb->holes));
170 scoreboard_clear (sb);
171 TCP_TEST ((pool_elts (sb->holes) == 0),
172 "number of holes %d", pool_elts (sb->holes));
183 test_pattern_t test_pattern[] = {
184 {380, 8}, {768, 8}, {1156, 8}, {1544, 8}, {1932, 8}, {2320, 8}, {2708, 8},
185 {2992, 8}, {372, 8}, {760, 8}, {1148, 8}, {1536, 8}, {1924, 8}, {2312, 8},
186 {2700, 8}, {2984, 8}, {364, 8}, {752, 8}, {1140, 8}, {1528, 8}, {1916, 8},
187 {2304, 8}, {2692, 8}, {2976, 8}, {356, 8}, {744, 8}, {1132, 8}, {1520, 8},
188 {1908, 8}, {2296, 8}, {2684, 8}, {2968, 8}, {348, 8}, {736, 8}, {1124, 8},
189 {1512, 8}, {1900, 8}, {2288, 8}, {2676, 8}, {2960, 8}, {340, 8}, {728, 8},
190 {1116, 8}, {1504, 8}, {1892, 8}, {2280, 8}, {2668, 8}, {2952, 8}, {332, 8},
191 {720, 8}, {1108, 8}, {1496, 8}, {1884, 8}, {2272, 8}, {2660, 8}, {2944, 8},
192 {324, 8}, {712, 8}, {1100, 8}, {1488, 8}, {1876, 8}, {2264, 8}, {2652, 8},
193 {2936, 8}, {316, 8}, {704, 8}, {1092, 8}, {1480, 8}, {1868, 8}, {2256, 8},
194 {2644, 8}, {2928, 8}, {308, 8}, {696, 8}, {1084, 8}, {1472, 8}, {1860, 8},
195 {2248, 8}, {2636, 8}, {2920, 8}, {300, 8}, {688, 8}, {1076, 8}, {1464, 8},
196 {1852, 8}, {2240, 8}, {2628, 8}, {2912, 8}, {292, 8}, {680, 8}, {1068, 8},
197 {1456, 8}, {1844, 8}, {2232, 8}, {2620, 8}, {2904, 8}, {284, 8}, {672, 8},
198 {1060, 8}, {1448, 8}, {1836, 8}, {2224, 8}, {2612, 8}, {2896, 8}, {276, 8},
199 {664, 8}, {1052, 8}, {1440, 8}, {1828, 8}, {2216, 8}, {2604, 8}, {2888, 8},
200 {268, 8}, {656, 8}, {1044, 8}, {1432, 8}, {1820, 8}, {2208, 8}, {2596, 8},
201 {2880, 8}, {260, 8}, {648, 8}, {1036, 8}, {1424, 8}, {1812, 8}, {2200, 8},
202 {2588, 8}, {2872, 8}, {252, 8}, {640, 8}, {1028, 8}, {1416, 8}, {1804, 8},
203 {2192, 8}, {2580, 8}, {2864, 8}, {244, 8}, {632, 8}, {1020, 8}, {1408, 8},
204 {1796, 8}, {2184, 8}, {2572, 8}, {2856, 8}, {236, 8}, {624, 8}, {1012, 8},
205 {1400, 8}, {1788, 8}, {2176, 8}, {2564, 8}, {2848, 8}, {228, 8}, {616, 8},
206 {1004, 8}, {1392, 8}, {1780, 8}, {2168, 8}, {2556, 8}, {2840, 8}, {220, 8},
207 {608, 8}, {996, 8}, {1384, 8}, {1772, 8}, {2160, 8}, {2548, 8}, {2832, 8},
208 {212, 8}, {600, 8}, {988, 8}, {1376, 8}, {1764, 8}, {2152, 8}, {2540, 8},
209 {2824, 8}, {204, 8}, {592, 8}, {980, 8}, {1368, 8}, {1756, 8}, {2144, 8},
210 {2532, 8}, {2816, 8}, {196, 8}, {584, 8}, {972, 8}, {1360, 8}, {1748, 8},
211 {2136, 8}, {2524, 8}, {2808, 8}, {188, 8}, {576, 8}, {964, 8}, {1352, 8},
212 {1740, 8}, {2128, 8}, {2516, 8}, {2800, 8}, {180, 8}, {568, 8}, {956, 8},
213 {1344, 8}, {1732, 8}, {2120, 8}, {2508, 8}, {2792, 8}, {172, 8}, {560, 8},
214 {948, 8}, {1336, 8}, {1724, 8}, {2112, 8}, {2500, 8}, {2784, 8}, {164, 8},
215 {552, 8}, {940, 8}, {1328, 8}, {1716, 8}, {2104, 8}, {2492, 8}, {2776, 8},
216 {156, 8}, {544, 8}, {932, 8}, {1320, 8}, {1708, 8}, {2096, 8}, {2484, 8},
217 {2768, 8}, {148, 8}, {536, 8}, {924, 8}, {1312, 8}, {1700, 8}, {2088, 8},
218 {2476, 8}, {2760, 8}, {140, 8}, {528, 8}, {916, 8}, {1304, 8}, {1692, 8},
219 {2080, 8}, {2468, 8}, {2752, 8}, {132, 8}, {520, 8}, {908, 8}, {1296, 8},
220 {1684, 8}, {2072, 8}, {2460, 8}, {2744, 8}, {124, 8}, {512, 8}, {900, 8},
221 {1288, 8}, {1676, 8}, {2064, 8}, {2452, 8}, {2736, 8}, {116, 8}, {504, 8},
222 {892, 8}, {1280, 8}, {1668, 8}, {2056, 8}, {2444, 8}, {2728, 8}, {108, 8},
223 {496, 8}, {884, 8}, {1272, 8}, {1660, 8}, {2048, 8}, {2436, 8}, {2720, 8},
224 {100, 8}, {488, 8}, {876, 8}, {1264, 8}, {1652, 8}, {2040, 8}, {2428, 8},
225 {2716, 4}, {92, 8}, {480, 8}, {868, 8}, {1256, 8}, {1644, 8}, {2032, 8},
226 {2420, 8}, {84, 8}, {472, 8}, {860, 8}, {1248, 8}, {1636, 8}, {2024, 8},
227 {2412, 8}, {76, 8}, {464, 8}, {852, 8}, {1240, 8}, {1628, 8}, {2016, 8},
228 {2404, 8}, {68, 8}, {456, 8}, {844, 8}, {1232, 8}, {1620, 8}, {2008, 8},
229 {2396, 8}, {60, 8}, {448, 8}, {836, 8}, {1224, 8}, {1612, 8}, {2000, 8},
230 {2388, 8}, {52, 8}, {440, 8}, {828, 8}, {1216, 8}, {1604, 8}, {1992, 8},
231 {2380, 8}, {44, 8}, {432, 8}, {820, 8}, {1208, 8}, {1596, 8}, {1984, 8},
232 {2372, 8}, {36, 8}, {424, 8}, {812, 8}, {1200, 8}, {1588, 8}, {1976, 8},
233 {2364, 8}, {28, 8}, {416, 8}, {804, 8}, {1192, 8}, {1580, 8}, {1968, 8},
234 {2356, 8}, {20, 8}, {408, 8}, {796, 8}, {1184, 8}, {1572, 8}, {1960, 8},
235 {2348, 8}, {12, 8}, {400, 8}, {788, 8}, {1176, 8}, {1564, 8}, {1952, 8},
236 {2340, 8}, {4, 8}, {392, 8}, {780, 8}, {1168, 8}, {1556, 8}, {1944, 8},
238 /* missing from original data set */
239 {388, 4}, {776, 4}, {1164, 4}, {1552, 4}, {1940, 4}, {2328, 4},
244 pattern_cmp (const void *arg1, const void *arg2)
246 test_pattern_t *a1 = (test_pattern_t *) arg1;
247 test_pattern_t *a2 = (test_pattern_t *) arg2;
249 if (a1->offset < a2->offset)
251 else if (a1->offset > a2->offset)
257 fifo_validate_pattern (vlib_main_t * vm, test_pattern_t * pattern,
260 test_pattern_t *tp = pattern;
263 /* Go through the pattern and make 100% sure it's sane */
264 for (i = 0; i < pattern_length - 1; i++)
266 if (tp->offset + tp->len != (tp + 1)->offset)
268 vlib_cli_output (vm, "[%d] missing {%d, %d}", i,
269 (tp->offset + tp->len),
270 (tp + 1)->offset - (tp->offset + tp->len));
278 static test_pattern_t *
279 fifo_get_validate_pattern (vlib_main_t * vm, test_pattern_t * test_data,
282 test_pattern_t *validate_pattern = 0;
284 /* Validate, and try segments in order... */
285 vec_validate (validate_pattern, test_data_len - 1);
286 memcpy (validate_pattern, test_data,
287 test_data_len * sizeof (test_pattern_t));
288 qsort ((u8 *) validate_pattern, test_data_len, sizeof (test_pattern_t),
291 if (fifo_validate_pattern (vm, validate_pattern, test_data_len) == 0)
294 return validate_pattern;
298 tcp_test_fifo1 (vlib_main_t * vm, unformat_input_t * input)
301 u32 fifo_size = 1 << 20;
304 int i, rv, verbose = 0;
305 u32 data_word, test_data_len;
306 ooo_segment_t *ooo_seg;
309 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
311 if (unformat (input, "verbose"))
315 test_data_len = fifo_size / sizeof (u32);
316 vec_validate (test_data, test_data_len - 1);
318 for (i = 0; i < vec_len (test_data); i++)
321 f = svm_fifo_create (fifo_size);
323 /* Paint fifo data vector with -1's */
324 memset (f->data, 0xFF, test_data_len);
326 /* Enqueue an initial (un-dequeued) chunk */
327 rv = svm_fifo_enqueue_nowait (f, 0 /* pid */ ,
328 sizeof (u32), (u8 *) test_data);
329 TCP_TEST ((rv == sizeof (u32)), "enqueued %d", rv);
330 TCP_TEST ((f->tail == 4), "fifo tail %u", f->tail);
333 * Create 3 chunks in the future. The offsets are relative
334 * to the current fifo tail
336 for (i = 0; i < 3; i++)
338 offset = (2 * i + 1) * sizeof (u32);
339 data = (u8 *) (test_data + (2 * i + 1));
341 svm_fifo_enqueue_with_offset (f, 0 /* pid */ , offset, sizeof (u32),
344 vlib_cli_output (vm, "add [%d] [%d, %d]", 2 * i + 1, offset,
345 offset + sizeof (u32));
348 clib_warning ("enqueue returned %d", rv);
354 vlib_cli_output (vm, "fifo after odd segs: %U", format_svm_fifo, f, 1);
355 TCP_TEST ((f->tail == 8), "fifo tail %u", f->tail);
357 /* Paint some of missing data backwards */
358 for (i = 3; i > 1; i--)
360 offset = (2 * i + 0) * sizeof (u32);
361 data = (u8 *) (test_data + (2 * i + 0));
363 svm_fifo_enqueue_with_offset (f, 0 /* pid */ , offset, sizeof (u32),
366 vlib_cli_output (vm, "add [%d] [%d, %d]", 2 * i, offset,
367 offset + sizeof (u32));
370 clib_warning ("enqueue returned %d", rv);
376 vlib_cli_output (vm, "fifo before missing link: %U", format_svm_fifo, f,
378 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 1),
379 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
380 ooo_seg = svm_fifo_first_ooo_segment (f);
381 TCP_TEST ((ooo_seg->start == 12),
382 "first ooo seg position %u", ooo_seg->start);
383 TCP_TEST ((ooo_seg->length == 16),
384 "first ooo seg length %u", ooo_seg->length);
386 /* Enqueue the missing u32 */
387 rv = svm_fifo_enqueue_nowait (f, 0 /* pid */ , sizeof (u32),
388 (u8 *) (test_data + 2));
390 vlib_cli_output (vm, "fifo after missing link: %U", format_svm_fifo, f,
392 TCP_TEST ((rv == 20), "bytes to be enqueued %u", rv);
393 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 0),
394 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
396 /* Collect results */
397 for (i = 0; i < 7; i++)
399 rv = svm_fifo_dequeue_nowait (f, 0 /* pid */ , sizeof (u32),
401 if (rv != sizeof (u32))
403 clib_warning ("bytes dequeues %u", rv);
406 if (data_word != test_data[i])
408 clib_warning ("recovered [%d] %d not %d", i, data_word,
415 vec_free (test_data);
420 vec_free (test_data);
425 tcp_test_fifo2 (vlib_main_t * vm)
428 u32 fifo_size = 1 << 20;
429 int i, rv, test_data_len;
431 test_pattern_t *tp, *vp, *test_data;
432 ooo_segment_t *ooo_seg;
434 test_data = test_pattern;
435 test_data_len = ARRAY_LEN (test_pattern);
437 vp = fifo_get_validate_pattern (vm, test_data, test_data_len);
440 f = svm_fifo_create (fifo_size);
442 /* Paint the fifo data vector with -1's */
443 memset (f->data, 0xFF, 1 << 20);
446 * Try with sorted data
448 for (i = 0; i < test_data_len; i++)
452 rv = svm_fifo_enqueue_with_offset (f, 0, tp->offset, tp->len,
456 /* Expected result: one big fat chunk at offset 4 */
457 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 1),
458 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
459 ooo_seg = svm_fifo_first_ooo_segment (f);
460 TCP_TEST ((ooo_seg->start == 4),
461 "first ooo seg position %u", ooo_seg->start);
462 TCP_TEST ((ooo_seg->length == 2996),
463 "first ooo seg length %u", ooo_seg->length);
466 rv = svm_fifo_enqueue_nowait (f, 0, sizeof (u32), (u8 *) & data64);
467 TCP_TEST ((rv == 3000), "bytes to be enqueued %u", rv);
473 * Now try it again w/ unsorted data...
476 f = svm_fifo_create (fifo_size);
478 /* Paint fifo data vector with -1's */
479 memset (f->data, 0xFF, 1 << 20);
481 for (i = 0; i < test_data_len; i++)
485 rv = svm_fifo_enqueue_with_offset (f, 0, tp->offset, tp->len,
489 clib_warning ("enqueue returned %d", rv);
493 /* Expecting the same result: one big fat chunk at offset 4 */
494 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 1),
495 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
496 ooo_seg = svm_fifo_first_ooo_segment (f);
497 TCP_TEST ((ooo_seg->start == 4),
498 "first ooo seg position %u", ooo_seg->start);
499 TCP_TEST ((ooo_seg->length == 2996),
500 "first ooo seg length %u", ooo_seg->length);
503 rv = svm_fifo_enqueue_nowait (f, 0, sizeof (u32), (u8 *) & data64);
505 TCP_TEST ((rv == 3000), "bytes to be enqueued %u", rv);
513 tcp_test_fifo3 (vlib_main_t * vm, unformat_input_t * input)
516 u32 fifo_size = 4 << 10;
517 u32 fifo_initial_offset = 0;
518 u32 total_size = 2 << 10;
521 u8 *data_pattern = 0;
522 test_pattern_t *tp, *generate = 0;
524 u32 seg_size, length_so_far;
525 u32 current_offset, offset_increment, len_this_chunk;
526 u32 seed = 0xdeaddabe;
530 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
532 if (unformat (input, "fifo-size %d", &fifo_size))
534 else if (unformat (input, "total-size %d", &total_size))
536 else if (unformat (input, "verbose"))
538 else if (unformat (input, "overlap"))
540 else if (unformat (input, "initial-offset %d", &fifo_initial_offset))
542 else if (unformat (input, "seed %d", &seed))
544 else if (unformat (input, "nsegs %d", &nsegs))
546 else if (unformat (input, "no-randomize"))
550 clib_error_t *e = clib_error_return
551 (0, "unknown input `%U'", format_unformat_error, input);
552 clib_error_report (e);
560 vec_validate (data_pattern, total_size - 1);
561 for (i = 0; i < vec_len (data_pattern); i++)
562 data_pattern[i] = i & 0xff;
564 seg_size = total_size / nsegs;
567 while (length_so_far < total_size)
569 vec_add2 (generate, tp, 1);
570 len_this_chunk = clib_min (seg_size, total_size - length_so_far);
571 tp->offset = current_offset;
572 tp->len = len_this_chunk;
574 if (overlap && (len_this_chunk == seg_size))
577 offset_increment = len_this_chunk
578 % (1 + (random_u32 (&seed) % len_this_chunk));
580 while (offset_increment == 0);
582 offset_increment = len_this_chunk;
584 current_offset += offset_increment;
585 length_so_far = tp->offset + tp->len;
589 * Validate segment list. Only valid for non-overlap cases.
592 fifo_validate_pattern (vm, generate, vec_len (generate));
596 vlib_cli_output (vm, "raw data pattern:");
597 for (i = 0; i < vec_len (generate); i++)
599 vlib_cli_output (vm, "[%d] offset %u len %u", i,
600 generate[i].offset, generate[i].len);
604 /* Randomize data pattern */
607 for (i = 0; i < vec_len (generate) / 2; i++)
609 u32 src_index, dst_index;
610 test_pattern_t _tmp, *tmp = &_tmp;
612 src_index = random_u32 (&seed) % vec_len (generate);
613 dst_index = random_u32 (&seed) % vec_len (generate);
615 tmp[0] = generate[dst_index];
616 generate[dst_index] = generate[src_index];
617 generate[src_index] = tmp[0];
623 vlib_cli_output (vm, "randomized data pattern:");
624 for (i = 0; i < vec_len (generate); i++)
626 vlib_cli_output (vm, "[%d] offset %u len %u", i,
627 generate[i].offset, generate[i].len);
632 f = svm_fifo_create (fifo_size);
634 /* Paint the fifo data vector with -1's */
635 memset (f->data, 0xFF, fifo_size);
637 /* manually set head and tail pointers to validate modular arithmetic */
638 f->head = fifo_initial_offset % fifo_size;
639 f->tail = fifo_initial_offset % fifo_size;
641 for (i = 0; i < vec_len (generate); i++)
644 rv = svm_fifo_enqueue_with_offset (f, 0, tp->offset, tp->len,
645 (u8 *) data_pattern + tp->offset);
648 /* Expected result: one big fat chunk at offset 1 */
651 vlib_cli_output (vm, "fifo before missing link: %U",
652 format_svm_fifo, f, 1 /* verbose */ );
654 rv = svm_fifo_enqueue_nowait (f, 0, 1 /* count */ , data_pattern + 0);
657 vlib_cli_output (vm, "in-order enqueue returned %d", rv);
659 TCP_TEST ((rv == total_size), "retrieved %u expected %u", rv, total_size);
660 TCP_TEST ((svm_fifo_number_ooo_segments (f) == 0),
661 "number of ooo segments %u", svm_fifo_number_ooo_segments (f));
663 vec_free (data_pattern);
669 tcp_test_fifo (vlib_main_t * vm, unformat_input_t * input)
674 if (unformat_check_input (input) == UNFORMAT_END_OF_INPUT)
676 res = tcp_test_fifo1 (vm, input);
680 res = tcp_test_fifo2 (vm);
684 /* Run a number of fifo3 configs */
685 unformat_init_cstring (input, "nsegs 3 overlap seed 123");
686 if (tcp_test_fifo3 (vm, input))
688 unformat_free (input);
690 unformat_init_cstring (input, "nsegs 10");
691 if (tcp_test_fifo3 (vm, input))
693 unformat_free (input);
697 if (unformat (input, "fifo3"))
699 res = tcp_test_fifo3 (vm, input);
701 else if (unformat (input, "fifo2"))
703 res = tcp_test_fifo2 (vm);
705 else if (unformat (input, "fifo1"))
707 res = tcp_test_fifo1 (vm, input);
714 static clib_error_t *
715 tcp_test (vlib_main_t * vm,
716 unformat_input_t * input, vlib_cli_command_t * cmd_arg)
720 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
722 if (unformat (input, "sack"))
724 res = tcp_test_sack ();
726 else if (unformat (input, "fifo"))
728 res = tcp_test_fifo (vm, input);
732 return clib_error_return (0, "unknown input `%U'",
733 format_unformat_error, input);
739 return clib_error_return (0, "TCP unit test failed");
748 VLIB_CLI_COMMAND (tcp_test_command, static) =
751 .short_help = "internal tcp unit tests",
752 .function = tcp_test,
758 * fd.io coding-style-patch-verification: ON
761 * eval: (c-set-style "gnu")