aboutsummaryrefslogtreecommitdiffstats
path: root/app/test/test_reorder.c
blob: 67f3151bcb0fecf3faca90aef626ff3f08e169a4 (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
/*-
 *   BSD LICENSE
 *
 *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
 *   All rights reserved.
 *
 *   Redistribution and use in source and binary forms, with or without
 *   modification, are permitted provided that the following conditions
 *   are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in
 *       the documentation and/or other materials provided with the
 *       distribution.
 *     * Neither the name of Intel Corporation nor the names of its
 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "test.h"
#include "stdio.h"

#include <unistd.h>
#include <string.h>

#include <rte_cycles.h>
#include <rte_errno.h>
#include <rte_mbuf.h>
#include <rte_reorder.h>
#include <rte_lcore.h>
#include <rte_malloc.h>

#include "test.h"

#define BURST 32
#define REORDER_BUFFER_SIZE 16384
#define NUM_MBUFS (2*REORDER_BUFFER_SIZE)
#define REORDER_BUFFER_SIZE_INVALID 2049

struct reorder_unittest_params {
	struct rte_mempool *p;
	struct rte_reorder_buffer *b;
};

static struct reorder_unittest_params default_params  = {
	.p = NULL,
	.b = NULL
};

static struct reorder_unittest_params *test_params = &default_params;

static int
test_reorder_create(void)
{
	struct rte_reorder_buffer *b = NULL;

	b = rte_reorder_create(NULL, rte_socket_id(), REORDER_BUFFER_SIZE);
	TEST_ASSERT((b == NULL) && (rte_errno == EINVAL),
			"No error on create() with NULL name");

	b = rte_reorder_create("PKT", rte_socket_id(), REORDER_BUFFER_SIZE_INVALID);
	TEST_ASSERT((b == NULL) && (rte_errno == EINVAL),
			"No error on create() with invalid buffer size param.");

	b = rte_reorder_create("PKT_RO1", rte_socket_id(), REORDER_BUFFER_SIZE);
	TEST_ASSERT_EQUAL(b, test_params->b,
			"New reorder instance created with already existing name");

	return 0;
}

static int
test_reorder_init(void)
{
	struct rte_reorder_buffer *b = NULL;
	unsigned int size;
	/*
	 * The minimum memory area size that should be passed to library is,
	 * sizeof(struct rte_reorder_buffer) + (2 * size * sizeof(struct rte_mbuf *));
	 * Otherwise error will be thrown
	 */

	size = 100;
	b = rte_reorder_init(b, size, "PKT1", REORDER_BUFFER_SIZE);
	TEST_ASSERT((b == NULL) && (rte_errno == EINVAL),
			"No error on init with NULL buffer.");

	b = rte_malloc(NULL, size, 0);
	b = rte_reorder_init(b, size, "PKT1", REORDER_BUFFER_SIZE);
	TEST_ASSERT((b == NULL) && (rte_errno == EINVAL),
			"No error on init with invalid mem zone size.");
	rte_free(b);

	size = 262336;
	b = rte_malloc(NULL, size, 0);
	b = rte_reorder_init(b, size, "PKT1", REORDER_BUFFER_SIZE_INVALID);
	TEST_ASSERT((b == NULL) && (rte_errno == EINVAL),
			"No error on init with invalid buffer size param.");

	b = rte_reorder_init(b, size, NULL, REORDER_BUFFER_SIZE);
	TEST_ASSERT((b == NULL) && (rte_errno == EINVAL),
			"No error on init with invalid name.");
	rte_free(b);

	return 0;
}

static int
test_reorder_find_existing(void)
{
	struct rte_reorder_buffer *b = NULL;

	/* Try to find existing reorder buffer instance */
	b = rte_reorder_find_existing("PKT_RO1");
	TEST_ASSERT_EQUAL(b, test_params->b,
			"existing reorder buffer instance not found");

	/* Try to find non existing reorder buffer instance */
	b = rte_reorder_find_existing("ro_find_non_existing");
	TEST_ASSERT((b == NULL) && (rte_errno == ENOENT),
			"non existing reorder buffer instance found");

	return 0;
}

static int
test_reorder_free(void)
{
	struct rte_reorder_buffer *b1 = NULL, *b2 = NULL;
	const char *name = "test_free";

	b1 = rte_reorder_create(name, rte_socket_id(), 8);
	TEST_ASSERT_NOT_NULL(b1, "Failed to create reorder buffer.");

	b2 = rte_reorder_find_existing(name);
	TEST_ASSERT_EQUAL(b1, b2, "Failed to find existing reorder buffer");

	rte_reorder_free(b1);

	b2 = rte_reorder_find_existing(name);
	TEST_ASSERT((b2 == NULL) && (rte_errno == ENOENT),
			"Found previously freed reorder buffer");

	return 0;
}

static int
test_reorder_insert(void)
{
	struct rte_reorder_buffer *b = NULL;
	struct rte_mempool *p = test_params->p;
	const unsigned int size = 4;
	const unsigned int num_bufs = 7;
	struct rte_mbuf *bufs[num_bufs];
	int ret = 0;
	unsigned i;

	/* This would create a reorder buffer instance consisting of:
	 * reorder_seq = 0
	 * ready_buf: RB[size] = {NULL, NULL, NULL, NULL}
	 * order_buf: OB[size] = {NULL, NULL, NULL, NULL}
	 */
	b = rte_reorder_create("test_insert", rte_socket_id(), size);
	TEST_ASSERT_NOT_NULL(b, "Failed to create reorder buffer");

	ret = rte_mempool_get_bulk(p, (void *)bufs, num_bufs);
	TEST_ASSERT_SUCCESS(ret, "Error getting mbuf from pool");

	for (i = 0; i < num_bufs; i++)
		bufs[i]->seqn = i;

	/* This should fill up order buffer:
	 * reorder_seq = 0
	 * RB[] = {NULL, NULL, NULL, NULL}
	 * OB[] = {0, 1, 2, 3}
	 */
	for (i = 0; i < size; i++) {
		ret = rte_reorder_insert(b, bufs[i]);
		if (ret != 0) {
			printf("%s:%d: Error inserting packet with seqn less than size\n",
					__func__, __LINE__);
			ret = -1;
			goto exit;
		}
	}

	/* early packet - should move mbufs to ready buf and move sequence window
	 * reorder_seq = 4
	 * RB[] = {0, 1, 2, 3}
	 * OB[] = {4, NULL, NULL, NULL}
	 */
	ret = rte_reorder_insert(b, bufs[4]);
	if (ret != 0) {
		printf("%s:%d: Error inserting early packet with seqn: size\n",
				__func__, __LINE__);
		ret = -1;
		goto exit;
	}

	/* early packet from current sequence window - full ready buffer */
	bufs[5]->seqn = 2 * size;
	ret = rte_reorder_insert(b, bufs[5]);
	if (!((ret == -1) && (rte_errno == ENOSPC))) {
		printf("%s:%d: No error inserting early packet with full ready buffer\n",
				__func__, __LINE__);
		ret = -1;
		goto exit;
	}

	/* late packet */
	bufs[6]->seqn = 3 * size;
	ret = rte_reorder_insert(b, bufs[6]);
	if (!((ret == -1) && (rte_errno == ERANGE))) {
		printf("%s:%d: No error inserting late packet with seqn:"
				" 3 * size\n", __func__, __LINE__);
		ret = -1;
		goto exit;
	}

	ret = 0;
exit:
	rte_mempool_put_bulk(p, (void *)bufs, num_bufs);
	rte_reorder_free(b);
	return ret;
}

static int
test_reorder_drain(void)
{
	struct rte_reorder_buffer *b = NULL;
	struct rte_mempool *p = test_params->p;
	const unsigned int size = 4;
	const unsigned int num_bufs = 8;
	struct rte_mbuf *bufs[num_bufs];
	struct rte_mbuf *robufs[num_bufs];
	int ret = 0;
	unsigned i, cnt;

	/* This would create a reorder buffer instance consisting of:
	 * reorder_seq = 0
	 * ready_buf: RB[size] = {NULL, NULL, NULL, NULL}
	 * order_buf: OB[size] = {NULL, NULL, NULL, NULL}
	 */
	b = rte_reorder_create("test_drain", rte_socket_id(), size);
	TEST_ASSERT_NOT_NULL(b, "Failed to create reorder buffer");

	ret = rte_mempool_get_bulk(p, (void *)bufs, num_bufs);
	TEST_ASSERT_SUCCESS(ret, "Error getting mbuf from pool");

	/* Check no drained packets if reorder is empty */
	cnt = rte_reorder_drain(b, robufs, 1);
	if (cnt != 0) {
		printf("%s:%d: drained packets from empty reorder buffer\n",
				__func__, __LINE__);
		ret = -1;
		goto exit;
	}

	for (i = 0; i < num_bufs; i++)
		bufs[i]->seqn = i;

	/* Insert packet with seqn 1:
	 * reorder_seq = 0
	 * RB[] = {NULL, NULL, NULL, NULL}
	 * OB[] = {1, NULL, NULL, NULL}
	 */
	rte_reorder_insert(b, bufs[1]);

	cnt = rte_reorder_drain(b, robufs, 1);
	if (cnt != 1) {
		printf("%s:%d:%d: number of expected packets not drained\n",
				__func__, __LINE__, cnt);
		ret = -1;
		goto exit;
	}

	/* Insert more packets
	 * RB[] = {NULL, NULL, NULL, NULL}
	 * OB[] = {NULL, 2, 3, NULL}
	 */
	rte_reorder_insert(b, bufs[2]);
	rte_reorder_insert(b, bufs[3]);

	/* Insert more packets
	 * RB[] = {NULL, NULL, NULL, NULL}
	 * OB[] = {NULL, 2, 3, 4}
	 */
	rte_reorder_insert(b, bufs[4]);

	/* Insert more packets
	 * RB[] = {2, 3, 4, NULL}
	 * OB[] = {NULL, NULL, 7, NULL}
	 */
	rte_reorder_insert(b, bufs[7]);

	/* drained expected packets */
	cnt = rte_reorder_drain(b, robufs, 4);
	if (cnt != 3) {
		printf("%s:%d:%d: number of expected packets not drained\n",
				__func__, __LINE__, cnt);
		ret = -1;
		goto exit;
	}

	/*
	 * RB[] = {NULL, NULL, NULL, NULL}
	 * OB[] = {NULL, NULL, 7, NULL}
	 */
	cnt = rte_reorder_drain(b, robufs, 1);
	if (cnt != 0) {
		printf("%s:%d:%d: number of expected packets not drained\n",
				__func__, __LINE__, cnt);
		ret = -1;
		goto exit;
	}
	ret = 0;
exit:
	rte_mempool_put_bulk(p, (void *)bufs, num_bufs);
	rte_reorder_free(b);
	return ret;
}

static int
test_setup(void)
{
	/* reorder buffer instance creation */
	if (test_params->b == NULL) {
		test_params->b = rte_reorder_create("PKT_RO1", rte_socket_id(),
							REORDER_BUFFER_SIZE);
		if (test_params->b == NULL) {
			printf("%s: Error creating reorder buffer instance b\n",
					__func__);
			return -1;
		}
	} else
		rte_reorder_reset(test_params->b);

	/* mempool creation */
	if (test_params->p == NULL) {
		test_params->p = rte_pktmbuf_pool_create("RO_MBUF_POOL",
			NUM_MBUFS, BURST, 0, RTE_MBUF_DEFAULT_BUF_SIZE,
			rte_socket_id());
		if (test_params->p == NULL) {
			printf("%s: Error creating mempool\n", __func__);
			return -1;
		}
	}
	return 0;
}

static struct unit_test_suite reorder_test_suite  = {

	.setup = test_setup,
	.suite_name = "Reorder Unit Test Suite",
	.unit_test_cases = {
		TEST_CASE(test_reorder_create),
		TEST_CASE(test_reorder_init),
		TEST_CASE(test_reorder_find_existing),
		TEST_CASE(test_reorder_free),
		TEST_CASE(test_reorder_insert),
		TEST_CASE(test_reorder_drain),
		TEST_CASES_END()
	}
};

static int
test_reorder(void)
{
	return unit_test_suite_runner(&reorder_test_suite);
}

static struct test_command reorder_cmd = {
	.command = "reorder_autotest",
	.callback = test_reorder,
};
REGISTER_TEST_COMMAND(reorder_cmd);