1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2014 Intel Corporation
12 #include <sys/queue.h>
14 #include <rte_common.h>
15 #include <rte_debug.h>
17 #include <rte_memory.h>
18 #include <rte_memcpy.h>
19 #include <rte_launch.h>
21 #include <rte_per_lcore.h>
22 #include <rte_lcore.h>
23 #include <rte_atomic.h>
24 #include <rte_branch_prediction.h>
26 #include <rte_mempool.h>
28 #include <rte_random.h>
29 #include <rte_cycles.h>
30 #include <rte_malloc.h>
34 #define MBUF_DATA_SIZE 2048
36 #define MBUF_TEST_DATA_LEN 1464
37 #define MBUF_TEST_DATA_LEN2 50
38 #define MBUF_TEST_HDR1_LEN 20
39 #define MBUF_TEST_HDR2_LEN 30
40 #define MBUF_TEST_ALL_HDRS_LEN (MBUF_TEST_HDR1_LEN+MBUF_TEST_HDR2_LEN)
42 /* size of private data for mbuf in pktmbuf_pool2 */
43 #define MBUF2_PRIV_SIZE 128
45 #define REFCNT_MAX_ITER 64
46 #define REFCNT_MAX_TIMEOUT 10
47 #define REFCNT_MAX_REF (RTE_MAX_LCORE)
48 #define REFCNT_MBUF_NUM 64
49 #define REFCNT_RING_SIZE (REFCNT_MBUF_NUM * REFCNT_MAX_REF)
51 #define MAGIC_DATA 0x42424242
53 #define MAKE_STRING(x) # x
55 #ifdef RTE_MBUF_REFCNT_ATOMIC
57 static volatile uint32_t refcnt_stop_slaves;
58 static unsigned refcnt_lcore[RTE_MAX_LCORE];
66 * #. Allocate a mbuf pool.
68 * - The pool contains NB_MBUF elements, where each mbuf is MBUF_SIZE
71 * #. Test multiple allocations of mbufs from this pool.
73 * - Allocate NB_MBUF and store pointers in a table.
74 * - If an allocation fails, return an error.
75 * - Free all these mbufs.
76 * - Repeat the same test to check that mbufs were freed correctly.
78 * #. Test data manipulation in pktmbuf.
81 * - Append data using rte_pktmbuf_append().
82 * - Test for error in rte_pktmbuf_append() when len is too large.
83 * - Trim data at the end of mbuf using rte_pktmbuf_trim().
84 * - Test for error in rte_pktmbuf_trim() when len is too large.
85 * - Prepend a header using rte_pktmbuf_prepend().
86 * - Test for error in rte_pktmbuf_prepend() when len is too large.
87 * - Remove data at the beginning of mbuf using rte_pktmbuf_adj().
88 * - Test for error in rte_pktmbuf_adj() when len is too large.
89 * - Check that appended data is not corrupt.
91 * - Between all these tests, check data_len and pkt_len, and
92 * that the mbuf is contiguous.
93 * - Repeat the test to check that allocation operations
94 * reinitialize the mbuf correctly.
96 * #. Test packet cloning
97 * - Clone a mbuf and verify the data
98 * - Clone the cloned mbuf and verify the data
99 * - Attach a mbuf to another that does not have the same priv_size.
102 #define GOTO_FAIL(str, ...) do { \
103 printf("mbuf test FAILED (l.%d): <" str ">\n", \
104 __LINE__, ##__VA_ARGS__); \
109 * test data manipulation in mbuf with non-ascii data
112 test_pktmbuf_with_non_ascii_data(struct rte_mempool *pktmbuf_pool)
114 struct rte_mbuf *m = NULL;
117 m = rte_pktmbuf_alloc(pktmbuf_pool);
119 GOTO_FAIL("Cannot allocate mbuf");
120 if (rte_pktmbuf_pkt_len(m) != 0)
121 GOTO_FAIL("Bad length");
123 data = rte_pktmbuf_append(m, MBUF_TEST_DATA_LEN);
125 GOTO_FAIL("Cannot append data");
126 if (rte_pktmbuf_pkt_len(m) != MBUF_TEST_DATA_LEN)
127 GOTO_FAIL("Bad pkt length");
128 if (rte_pktmbuf_data_len(m) != MBUF_TEST_DATA_LEN)
129 GOTO_FAIL("Bad data length");
130 memset(data, 0xff, rte_pktmbuf_pkt_len(m));
131 if (!rte_pktmbuf_is_contiguous(m))
132 GOTO_FAIL("Buffer should be continuous");
133 rte_pktmbuf_dump(stdout, m, MBUF_TEST_DATA_LEN);
147 * test data manipulation in mbuf
150 test_one_pktmbuf(struct rte_mempool *pktmbuf_pool)
152 struct rte_mbuf *m = NULL;
153 char *data, *data2, *hdr;
156 printf("Test pktmbuf API\n");
160 m = rte_pktmbuf_alloc(pktmbuf_pool);
162 GOTO_FAIL("Cannot allocate mbuf");
163 if (rte_pktmbuf_pkt_len(m) != 0)
164 GOTO_FAIL("Bad length");
166 rte_pktmbuf_dump(stdout, m, 0);
170 data = rte_pktmbuf_append(m, MBUF_TEST_DATA_LEN);
172 GOTO_FAIL("Cannot append data");
173 if (rte_pktmbuf_pkt_len(m) != MBUF_TEST_DATA_LEN)
174 GOTO_FAIL("Bad pkt length");
175 if (rte_pktmbuf_data_len(m) != MBUF_TEST_DATA_LEN)
176 GOTO_FAIL("Bad data length");
177 memset(data, 0x66, rte_pktmbuf_pkt_len(m));
178 if (!rte_pktmbuf_is_contiguous(m))
179 GOTO_FAIL("Buffer should be continuous");
180 rte_pktmbuf_dump(stdout, m, MBUF_TEST_DATA_LEN);
181 rte_pktmbuf_dump(stdout, m, 2*MBUF_TEST_DATA_LEN);
183 /* this append should fail */
185 data2 = rte_pktmbuf_append(m, (uint16_t)(rte_pktmbuf_tailroom(m) + 1));
187 GOTO_FAIL("Append should not succeed");
189 /* append some more data */
191 data2 = rte_pktmbuf_append(m, MBUF_TEST_DATA_LEN2);
193 GOTO_FAIL("Cannot append data");
194 if (rte_pktmbuf_pkt_len(m) != MBUF_TEST_DATA_LEN + MBUF_TEST_DATA_LEN2)
195 GOTO_FAIL("Bad pkt length");
196 if (rte_pktmbuf_data_len(m) != MBUF_TEST_DATA_LEN + MBUF_TEST_DATA_LEN2)
197 GOTO_FAIL("Bad data length");
198 if (!rte_pktmbuf_is_contiguous(m))
199 GOTO_FAIL("Buffer should be continuous");
201 /* trim data at the end of mbuf */
203 if (rte_pktmbuf_trim(m, MBUF_TEST_DATA_LEN2) < 0)
204 GOTO_FAIL("Cannot trim data");
205 if (rte_pktmbuf_pkt_len(m) != MBUF_TEST_DATA_LEN)
206 GOTO_FAIL("Bad pkt length");
207 if (rte_pktmbuf_data_len(m) != MBUF_TEST_DATA_LEN)
208 GOTO_FAIL("Bad data length");
209 if (!rte_pktmbuf_is_contiguous(m))
210 GOTO_FAIL("Buffer should be continuous");
212 /* this trim should fail */
214 if (rte_pktmbuf_trim(m, (uint16_t)(rte_pktmbuf_data_len(m) + 1)) == 0)
215 GOTO_FAIL("trim should not succeed");
217 /* prepend one header */
219 hdr = rte_pktmbuf_prepend(m, MBUF_TEST_HDR1_LEN);
221 GOTO_FAIL("Cannot prepend");
222 if (data - hdr != MBUF_TEST_HDR1_LEN)
223 GOTO_FAIL("Prepend failed");
224 if (rte_pktmbuf_pkt_len(m) != MBUF_TEST_DATA_LEN + MBUF_TEST_HDR1_LEN)
225 GOTO_FAIL("Bad pkt length");
226 if (rte_pktmbuf_data_len(m) != MBUF_TEST_DATA_LEN + MBUF_TEST_HDR1_LEN)
227 GOTO_FAIL("Bad data length");
228 if (!rte_pktmbuf_is_contiguous(m))
229 GOTO_FAIL("Buffer should be continuous");
230 memset(hdr, 0x55, MBUF_TEST_HDR1_LEN);
232 /* prepend another header */
234 hdr = rte_pktmbuf_prepend(m, MBUF_TEST_HDR2_LEN);
236 GOTO_FAIL("Cannot prepend");
237 if (data - hdr != MBUF_TEST_ALL_HDRS_LEN)
238 GOTO_FAIL("Prepend failed");
239 if (rte_pktmbuf_pkt_len(m) != MBUF_TEST_DATA_LEN + MBUF_TEST_ALL_HDRS_LEN)
240 GOTO_FAIL("Bad pkt length");
241 if (rte_pktmbuf_data_len(m) != MBUF_TEST_DATA_LEN + MBUF_TEST_ALL_HDRS_LEN)
242 GOTO_FAIL("Bad data length");
243 if (!rte_pktmbuf_is_contiguous(m))
244 GOTO_FAIL("Buffer should be continuous");
245 memset(hdr, 0x55, MBUF_TEST_HDR2_LEN);
247 rte_mbuf_sanity_check(m, 1);
248 rte_mbuf_sanity_check(m, 0);
249 rte_pktmbuf_dump(stdout, m, 0);
251 /* this prepend should fail */
253 hdr = rte_pktmbuf_prepend(m, (uint16_t)(rte_pktmbuf_headroom(m) + 1));
255 GOTO_FAIL("prepend should not succeed");
257 /* remove data at beginning of mbuf (adj) */
259 if (data != rte_pktmbuf_adj(m, MBUF_TEST_ALL_HDRS_LEN))
260 GOTO_FAIL("rte_pktmbuf_adj failed");
261 if (rte_pktmbuf_pkt_len(m) != MBUF_TEST_DATA_LEN)
262 GOTO_FAIL("Bad pkt length");
263 if (rte_pktmbuf_data_len(m) != MBUF_TEST_DATA_LEN)
264 GOTO_FAIL("Bad data length");
265 if (!rte_pktmbuf_is_contiguous(m))
266 GOTO_FAIL("Buffer should be continuous");
268 /* this adj should fail */
270 if (rte_pktmbuf_adj(m, (uint16_t)(rte_pktmbuf_data_len(m) + 1)) != NULL)
271 GOTO_FAIL("rte_pktmbuf_adj should not succeed");
275 if (!rte_pktmbuf_is_contiguous(m))
276 GOTO_FAIL("Buffer should be continuous");
278 for (i=0; i<MBUF_TEST_DATA_LEN; i++) {
280 GOTO_FAIL("Data corrupted at offset %u", i);
296 testclone_testupdate_testdetach(struct rte_mempool *pktmbuf_pool)
298 struct rte_mbuf *m = NULL;
299 struct rte_mbuf *clone = NULL;
300 struct rte_mbuf *clone2 = NULL;
301 unaligned_uint32_t *data;
304 m = rte_pktmbuf_alloc(pktmbuf_pool);
306 GOTO_FAIL("ooops not allocating mbuf");
308 if (rte_pktmbuf_pkt_len(m) != 0)
309 GOTO_FAIL("Bad length");
311 rte_pktmbuf_append(m, sizeof(uint32_t));
312 data = rte_pktmbuf_mtod(m, unaligned_uint32_t *);
315 /* clone the allocated mbuf */
316 clone = rte_pktmbuf_clone(m, pktmbuf_pool);
318 GOTO_FAIL("cannot clone data\n");
320 data = rte_pktmbuf_mtod(clone, unaligned_uint32_t *);
321 if (*data != MAGIC_DATA)
322 GOTO_FAIL("invalid data in clone\n");
324 if (rte_mbuf_refcnt_read(m) != 2)
325 GOTO_FAIL("invalid refcnt in m\n");
328 rte_pktmbuf_free(clone);
331 /* same test with a chained mbuf */
332 m->next = rte_pktmbuf_alloc(pktmbuf_pool);
334 GOTO_FAIL("Next Pkt Null\n");
336 rte_pktmbuf_append(m->next, sizeof(uint32_t));
337 data = rte_pktmbuf_mtod(m->next, unaligned_uint32_t *);
340 clone = rte_pktmbuf_clone(m, pktmbuf_pool);
342 GOTO_FAIL("cannot clone data\n");
344 data = rte_pktmbuf_mtod(clone, unaligned_uint32_t *);
345 if (*data != MAGIC_DATA)
346 GOTO_FAIL("invalid data in clone\n");
348 data = rte_pktmbuf_mtod(clone->next, unaligned_uint32_t *);
349 if (*data != MAGIC_DATA)
350 GOTO_FAIL("invalid data in clone->next\n");
352 if (rte_mbuf_refcnt_read(m) != 2)
353 GOTO_FAIL("invalid refcnt in m\n");
355 if (rte_mbuf_refcnt_read(m->next) != 2)
356 GOTO_FAIL("invalid refcnt in m->next\n");
358 /* try to clone the clone */
360 clone2 = rte_pktmbuf_clone(clone, pktmbuf_pool);
362 GOTO_FAIL("cannot clone the clone\n");
364 data = rte_pktmbuf_mtod(clone2, unaligned_uint32_t *);
365 if (*data != MAGIC_DATA)
366 GOTO_FAIL("invalid data in clone2\n");
368 data = rte_pktmbuf_mtod(clone2->next, unaligned_uint32_t *);
369 if (*data != MAGIC_DATA)
370 GOTO_FAIL("invalid data in clone2->next\n");
372 if (rte_mbuf_refcnt_read(m) != 3)
373 GOTO_FAIL("invalid refcnt in m\n");
375 if (rte_mbuf_refcnt_read(m->next) != 3)
376 GOTO_FAIL("invalid refcnt in m->next\n");
380 rte_pktmbuf_free(clone);
381 rte_pktmbuf_free(clone2);
386 printf("%s ok\n", __func__);
393 rte_pktmbuf_free(clone);
395 rte_pktmbuf_free(clone2);
400 test_attach_from_different_pool(struct rte_mempool *pktmbuf_pool,
401 struct rte_mempool *pktmbuf_pool2)
403 struct rte_mbuf *m = NULL;
404 struct rte_mbuf *clone = NULL;
405 struct rte_mbuf *clone2 = NULL;
406 char *data, *c_data, *c_data2;
409 m = rte_pktmbuf_alloc(pktmbuf_pool);
411 GOTO_FAIL("cannot allocate mbuf");
413 if (rte_pktmbuf_pkt_len(m) != 0)
414 GOTO_FAIL("Bad length");
416 data = rte_pktmbuf_mtod(m, char *);
418 /* allocate a new mbuf from the second pool, and attach it to the first
420 clone = rte_pktmbuf_alloc(pktmbuf_pool2);
422 GOTO_FAIL("cannot allocate mbuf from second pool\n");
424 /* check data room size and priv size, and erase priv */
425 if (rte_pktmbuf_data_room_size(clone->pool) != 0)
426 GOTO_FAIL("data room size should be 0\n");
427 if (rte_pktmbuf_priv_size(clone->pool) != MBUF2_PRIV_SIZE)
428 GOTO_FAIL("data room size should be %d\n", MBUF2_PRIV_SIZE);
429 memset(clone + 1, 0, MBUF2_PRIV_SIZE);
431 /* save data pointer to compare it after detach() */
432 c_data = rte_pktmbuf_mtod(clone, char *);
433 if (c_data != (char *)clone + sizeof(*clone) + MBUF2_PRIV_SIZE)
434 GOTO_FAIL("bad data pointer in clone");
435 if (rte_pktmbuf_headroom(clone) != 0)
436 GOTO_FAIL("bad headroom in clone");
438 rte_pktmbuf_attach(clone, m);
440 if (rte_pktmbuf_mtod(clone, char *) != data)
441 GOTO_FAIL("clone was not attached properly\n");
442 if (rte_pktmbuf_headroom(clone) != RTE_PKTMBUF_HEADROOM)
443 GOTO_FAIL("bad headroom in clone after attach");
444 if (rte_mbuf_refcnt_read(m) != 2)
445 GOTO_FAIL("invalid refcnt in m\n");
447 /* allocate a new mbuf from the second pool, and attach it to the first
449 clone2 = rte_pktmbuf_alloc(pktmbuf_pool2);
451 GOTO_FAIL("cannot allocate clone2 from second pool\n");
453 /* check data room size and priv size, and erase priv */
454 if (rte_pktmbuf_data_room_size(clone2->pool) != 0)
455 GOTO_FAIL("data room size should be 0\n");
456 if (rte_pktmbuf_priv_size(clone2->pool) != MBUF2_PRIV_SIZE)
457 GOTO_FAIL("data room size should be %d\n", MBUF2_PRIV_SIZE);
458 memset(clone2 + 1, 0, MBUF2_PRIV_SIZE);
460 /* save data pointer to compare it after detach() */
461 c_data2 = rte_pktmbuf_mtod(clone2, char *);
462 if (c_data2 != (char *)clone2 + sizeof(*clone2) + MBUF2_PRIV_SIZE)
463 GOTO_FAIL("bad data pointer in clone2");
464 if (rte_pktmbuf_headroom(clone2) != 0)
465 GOTO_FAIL("bad headroom in clone2");
467 rte_pktmbuf_attach(clone2, clone);
469 if (rte_pktmbuf_mtod(clone2, char *) != data)
470 GOTO_FAIL("clone2 was not attached properly\n");
471 if (rte_pktmbuf_headroom(clone2) != RTE_PKTMBUF_HEADROOM)
472 GOTO_FAIL("bad headroom in clone2 after attach");
473 if (rte_mbuf_refcnt_read(m) != 3)
474 GOTO_FAIL("invalid refcnt in m\n");
476 /* detach the clones */
477 rte_pktmbuf_detach(clone);
478 if (c_data != rte_pktmbuf_mtod(clone, char *))
479 GOTO_FAIL("clone was not detached properly\n");
480 if (rte_mbuf_refcnt_read(m) != 2)
481 GOTO_FAIL("invalid refcnt in m\n");
483 rte_pktmbuf_detach(clone2);
484 if (c_data2 != rte_pktmbuf_mtod(clone2, char *))
485 GOTO_FAIL("clone2 was not detached properly\n");
486 if (rte_mbuf_refcnt_read(m) != 1)
487 GOTO_FAIL("invalid refcnt in m\n");
489 /* free the clones and the initial mbuf */
490 rte_pktmbuf_free(clone2);
491 rte_pktmbuf_free(clone);
493 printf("%s ok\n", __func__);
500 rte_pktmbuf_free(clone);
502 rte_pktmbuf_free(clone2);
508 * test allocation and free of mbufs
511 test_pktmbuf_pool(struct rte_mempool *pktmbuf_pool)
514 struct rte_mbuf *m[NB_MBUF];
517 for (i=0; i<NB_MBUF; i++)
520 /* alloc NB_MBUF mbufs */
521 for (i=0; i<NB_MBUF; i++) {
522 m[i] = rte_pktmbuf_alloc(pktmbuf_pool);
524 printf("rte_pktmbuf_alloc() failed (%u)\n", i);
528 struct rte_mbuf *extra = NULL;
529 extra = rte_pktmbuf_alloc(pktmbuf_pool);
531 printf("Error pool not empty");
534 extra = rte_pktmbuf_clone(m[0], pktmbuf_pool);
536 printf("Error pool not empty");
540 for (i=0; i<NB_MBUF; i++) {
542 rte_pktmbuf_free(m[i]);
549 * test that the pointer to the data on a packet mbuf is set properly
552 test_pktmbuf_pool_ptr(struct rte_mempool *pktmbuf_pool)
555 struct rte_mbuf *m[NB_MBUF];
558 for (i=0; i<NB_MBUF; i++)
561 /* alloc NB_MBUF mbufs */
562 for (i=0; i<NB_MBUF; i++) {
563 m[i] = rte_pktmbuf_alloc(pktmbuf_pool);
565 printf("rte_pktmbuf_alloc() failed (%u)\n", i);
569 m[i]->data_off += 64;
573 for (i=0; i<NB_MBUF; i++) {
575 rte_pktmbuf_free(m[i]);
578 for (i=0; i<NB_MBUF; i++)
581 /* alloc NB_MBUF mbufs */
582 for (i=0; i<NB_MBUF; i++) {
583 m[i] = rte_pktmbuf_alloc(pktmbuf_pool);
585 printf("rte_pktmbuf_alloc() failed (%u)\n", i);
589 if (m[i]->data_off != RTE_PKTMBUF_HEADROOM) {
590 printf("invalid data_off\n");
596 for (i=0; i<NB_MBUF; i++) {
598 rte_pktmbuf_free(m[i]);
605 test_pktmbuf_free_segment(struct rte_mempool *pktmbuf_pool)
608 struct rte_mbuf *m[NB_MBUF];
611 for (i=0; i<NB_MBUF; i++)
614 /* alloc NB_MBUF mbufs */
615 for (i=0; i<NB_MBUF; i++) {
616 m[i] = rte_pktmbuf_alloc(pktmbuf_pool);
618 printf("rte_pktmbuf_alloc() failed (%u)\n", i);
624 for (i=0; i<NB_MBUF; i++) {
626 struct rte_mbuf *mb, *mt;
632 rte_pktmbuf_free_seg(mt);
641 * Stress test for rte_mbuf atomic refcnt.
642 * Implies that RTE_MBUF_REFCNT_ATOMIC is defined.
643 * For more efficiency, recommended to run with RTE_LIBRTE_MBUF_DEBUG defined.
646 #ifdef RTE_MBUF_REFCNT_ATOMIC
649 test_refcnt_slave(void *arg)
651 unsigned lcore, free;
653 struct rte_ring *refcnt_mbuf_ring = arg;
655 lcore = rte_lcore_id();
656 printf("%s started at lcore %u\n", __func__, lcore);
659 while (refcnt_stop_slaves == 0) {
660 if (rte_ring_dequeue(refcnt_mbuf_ring, &mp) == 0) {
662 rte_pktmbuf_free(mp);
666 refcnt_lcore[lcore] += free;
667 printf("%s finished at lcore %u, "
668 "number of freed mbufs: %u\n",
669 __func__, lcore, free);
674 test_refcnt_iter(unsigned int lcore, unsigned int iter,
675 struct rte_mempool *refcnt_pool,
676 struct rte_ring *refcnt_mbuf_ring)
679 unsigned i, n, tref, wn;
684 /* For each mbuf in the pool:
686 * - increment it's reference up to N+1,
687 * - enqueue it N times into the ring for slave cores to free.
689 for (i = 0, n = rte_mempool_avail_count(refcnt_pool);
690 i != n && (m = rte_pktmbuf_alloc(refcnt_pool)) != NULL;
692 ref = RTE_MAX(rte_rand() % REFCNT_MAX_REF, 1UL);
694 if ((ref & 1) != 0) {
695 rte_pktmbuf_refcnt_update(m, ref);
697 rte_ring_enqueue(refcnt_mbuf_ring, m);
700 rte_pktmbuf_refcnt_update(m, 1);
701 rte_ring_enqueue(refcnt_mbuf_ring, m);
708 rte_panic("(lcore=%u, iter=%u): was able to allocate only "
709 "%u from %u mbufs\n", lcore, iter, i, n);
711 /* wait till slave lcores will consume all mbufs */
712 while (!rte_ring_empty(refcnt_mbuf_ring))
715 /* check that all mbufs are back into mempool by now */
716 for (wn = 0; wn != REFCNT_MAX_TIMEOUT; wn++) {
717 if ((i = rte_mempool_avail_count(refcnt_pool)) == n) {
718 refcnt_lcore[lcore] += tref;
719 printf("%s(lcore=%u, iter=%u) completed, "
720 "%u references processed\n",
721 __func__, lcore, iter, tref);
727 rte_panic("(lcore=%u, iter=%u): after %us only "
728 "%u of %u mbufs left free\n", lcore, iter, wn, i, n);
732 test_refcnt_master(struct rte_mempool *refcnt_pool,
733 struct rte_ring *refcnt_mbuf_ring)
737 lcore = rte_lcore_id();
738 printf("%s started at lcore %u\n", __func__, lcore);
740 for (i = 0; i != REFCNT_MAX_ITER; i++)
741 test_refcnt_iter(lcore, i, refcnt_pool, refcnt_mbuf_ring);
743 refcnt_stop_slaves = 1;
746 printf("%s finished at lcore %u\n", __func__, lcore);
753 test_refcnt_mbuf(void)
755 #ifdef RTE_MBUF_REFCNT_ATOMIC
756 unsigned lnum, master, slave, tref;
758 struct rte_mempool *refcnt_pool = NULL;
759 struct rte_ring *refcnt_mbuf_ring = NULL;
761 if ((lnum = rte_lcore_count()) == 1) {
762 printf("skipping %s, number of lcores: %u is not enough\n",
767 printf("starting %s, at %u lcores\n", __func__, lnum);
769 /* create refcnt pool & ring if they don't exist */
771 refcnt_pool = rte_pktmbuf_pool_create(MAKE_STRING(refcnt_pool),
772 REFCNT_MBUF_NUM, 0, 0, 0,
774 if (refcnt_pool == NULL) {
775 printf("%s: cannot allocate " MAKE_STRING(refcnt_pool) "\n",
780 refcnt_mbuf_ring = rte_ring_create("refcnt_mbuf_ring",
781 rte_align32pow2(REFCNT_RING_SIZE), SOCKET_ID_ANY,
783 if (refcnt_mbuf_ring == NULL) {
784 printf("%s: cannot allocate " MAKE_STRING(refcnt_mbuf_ring)
789 refcnt_stop_slaves = 0;
790 memset(refcnt_lcore, 0, sizeof (refcnt_lcore));
792 rte_eal_mp_remote_launch(test_refcnt_slave, refcnt_mbuf_ring,
795 test_refcnt_master(refcnt_pool, refcnt_mbuf_ring);
797 rte_eal_mp_wait_lcore();
799 /* check that we porcessed all references */
801 master = rte_get_master_lcore();
803 RTE_LCORE_FOREACH_SLAVE(slave)
804 tref += refcnt_lcore[slave];
806 if (tref != refcnt_lcore[master])
807 rte_panic("refernced mbufs: %u, freed mbufs: %u\n",
808 tref, refcnt_lcore[master]);
810 rte_mempool_dump(stdout, refcnt_pool);
811 rte_ring_dump(stdout, refcnt_mbuf_ring);
816 rte_mempool_free(refcnt_pool);
817 rte_ring_free(refcnt_mbuf_ring);
825 #include <sys/wait.h>
827 /* use fork() to test mbuf errors panic */
829 verify_mbuf_check_panics(struct rte_mbuf *buf)
837 rte_mbuf_sanity_check(buf, 1); /* should panic */
838 exit(0); /* return normally if it doesn't panic */
840 printf("Fork Failed\n");
851 test_failing_mbuf_sanity_check(struct rte_mempool *pktmbuf_pool)
853 struct rte_mbuf *buf;
854 struct rte_mbuf badbuf;
856 printf("Checking rte_mbuf_sanity_check for failure conditions\n");
858 /* get a good mbuf to use to make copies */
859 buf = rte_pktmbuf_alloc(pktmbuf_pool);
862 printf("Checking good mbuf initially\n");
863 if (verify_mbuf_check_panics(buf) != -1)
866 printf("Now checking for error conditions\n");
868 if (verify_mbuf_check_panics(NULL)) {
869 printf("Error with NULL mbuf test\n");
875 if (verify_mbuf_check_panics(&badbuf)) {
876 printf("Error with bad-pool mbuf test\n");
882 if (verify_mbuf_check_panics(&badbuf)) {
883 printf("Error with bad-physaddr mbuf test\n");
888 badbuf.buf_addr = NULL;
889 if (verify_mbuf_check_panics(&badbuf)) {
890 printf("Error with bad-addr mbuf test\n");
896 if (verify_mbuf_check_panics(&badbuf)) {
897 printf("Error with bad-refcnt(0) mbuf test\n");
902 badbuf.refcnt = UINT16_MAX;
903 if (verify_mbuf_check_panics(&badbuf)) {
904 printf("Error with bad-refcnt(MAX) mbuf test\n");
912 test_mbuf_linearize(struct rte_mempool *pktmbuf_pool, int pkt_len,
916 struct rte_mbuf *m = NULL, *mbuf = NULL;
924 printf("Packet size must be 1 or more (is %d)\n", pkt_len);
929 printf("Number of segments must be 1 or more (is %d)\n",
934 seg_len = pkt_len / nb_segs;
940 /* Create chained mbuf_src and fill it generated data */
941 for (seg = 0; remain > 0; seg++) {
943 m = rte_pktmbuf_alloc(pktmbuf_pool);
945 printf("Cannot create segment for source mbuf");
949 /* Make sure if tailroom is zeroed */
950 memset(rte_pktmbuf_mtod(m, uint8_t *), 0,
951 rte_pktmbuf_tailroom(m));
954 if (data_len > seg_len)
957 data = (uint8_t *)rte_pktmbuf_append(m, data_len);
959 printf("Cannot append %d bytes to the mbuf\n",
964 for (i = 0; i < data_len; i++)
965 data[i] = (seg * seg_len + i) % 0x0ff;
970 rte_pktmbuf_chain(mbuf, m);
975 /* Create destination buffer to store coalesced data */
976 if (rte_pktmbuf_linearize(mbuf)) {
977 printf("Mbuf linearization failed\n");
981 if (!rte_pktmbuf_is_contiguous(mbuf)) {
982 printf("Source buffer should be contiguous after "
987 data = rte_pktmbuf_mtod(mbuf, uint8_t *);
989 for (i = 0; i < pkt_len; i++)
990 if (data[i] != (i % 0x0ff)) {
991 printf("Incorrect data in linearized mbuf\n");
995 rte_pktmbuf_free(mbuf);
1000 rte_pktmbuf_free(mbuf);
1005 test_mbuf_linearize_check(struct rte_mempool *pktmbuf_pool)
1007 struct test_mbuf_array {
1019 printf("Test mbuf linearize API\n");
1021 for (i = 0; i < RTE_DIM(mbuf_array); i++)
1022 if (test_mbuf_linearize(pktmbuf_pool, mbuf_array[i].size,
1023 mbuf_array[i].nb_segs)) {
1024 printf("Test failed for %d, %d\n", mbuf_array[i].size,
1025 mbuf_array[i].nb_segs);
1033 * Helper function for test_tx_ofload
1036 set_tx_offload(struct rte_mbuf *mb, uint64_t il2, uint64_t il3, uint64_t il4,
1037 uint64_t tso, uint64_t ol3, uint64_t ol2)
1042 mb->tso_segsz = tso;
1043 mb->outer_l3_len = ol3;
1044 mb->outer_l2_len = ol2;
1048 test_tx_offload(void)
1050 struct rte_mbuf *mb;
1051 uint64_t tm, v1, v2;
1055 static volatile struct {
1062 const uint32_t num = 0x10000;
1064 txof.l2 = rte_rand() % (1 << RTE_MBUF_L2_LEN_BITS);
1065 txof.l3 = rte_rand() % (1 << RTE_MBUF_L3_LEN_BITS);
1066 txof.l4 = rte_rand() % (1 << RTE_MBUF_L4_LEN_BITS);
1067 txof.tso = rte_rand() % (1 << RTE_MBUF_TSO_SEGSZ_BITS);
1069 printf("%s started, tx_offload = {\n"
1073 "\ttso_segsz=%#hx,\n"
1074 "\touter_l3_len=%#x,\n"
1075 "\touter_l2_len=%#x,\n"
1078 txof.l2, txof.l3, txof.l4, txof.tso, txof.l3, txof.l2);
1080 sz = sizeof(*mb) * num;
1081 mb = rte_zmalloc(NULL, sz, RTE_CACHE_LINE_SIZE);
1083 printf("%s failed, out of memory\n", __func__);
1088 tm = rte_rdtsc_precise();
1090 for (i = 0; i != num; i++)
1091 set_tx_offload(mb + i, txof.l2, txof.l3, txof.l4,
1092 txof.tso, txof.l3, txof.l2);
1094 tm = rte_rdtsc_precise() - tm;
1095 printf("%s set tx_offload by bit-fields: %u iterations, %"
1096 PRIu64 " cycles, %#Lf cycles/iter\n",
1097 __func__, num, tm, (long double)tm / num);
1099 v1 = mb[rte_rand() % num].tx_offload;
1102 tm = rte_rdtsc_precise();
1104 for (i = 0; i != num; i++)
1105 mb[i].tx_offload = rte_mbuf_tx_offload(txof.l2, txof.l3,
1106 txof.l4, txof.tso, txof.l3, txof.l2, 0);
1108 tm = rte_rdtsc_precise() - tm;
1109 printf("%s set raw tx_offload: %u iterations, %"
1110 PRIu64 " cycles, %#Lf cycles/iter\n",
1111 __func__, num, tm, (long double)tm / num);
1113 v2 = mb[rte_rand() % num].tx_offload;
1117 printf("%s finished\n"
1118 "expected tx_offload value: 0x%" PRIx64 ";\n"
1119 "rte_mbuf_tx_offload value: 0x%" PRIx64 ";\n",
1122 return (v1 == v2) ? 0 : -EINVAL;
1129 struct rte_mempool *pktmbuf_pool = NULL;
1130 struct rte_mempool *pktmbuf_pool2 = NULL;
1133 RTE_BUILD_BUG_ON(sizeof(struct rte_mbuf) != RTE_CACHE_LINE_MIN_SIZE * 2);
1135 /* create pktmbuf pool if it does not exist */
1136 pktmbuf_pool = rte_pktmbuf_pool_create("test_pktmbuf_pool",
1137 NB_MBUF, 32, 0, MBUF_DATA_SIZE, SOCKET_ID_ANY);
1139 if (pktmbuf_pool == NULL) {
1140 printf("cannot allocate mbuf pool\n");
1144 /* create a specific pktmbuf pool with a priv_size != 0 and no data
1146 pktmbuf_pool2 = rte_pktmbuf_pool_create("test_pktmbuf_pool2",
1147 NB_MBUF, 32, MBUF2_PRIV_SIZE, 0, SOCKET_ID_ANY);
1149 if (pktmbuf_pool2 == NULL) {
1150 printf("cannot allocate mbuf pool\n");
1154 /* test multiple mbuf alloc */
1155 if (test_pktmbuf_pool(pktmbuf_pool) < 0) {
1156 printf("test_mbuf_pool() failed\n");
1160 /* do it another time to check that all mbufs were freed */
1161 if (test_pktmbuf_pool(pktmbuf_pool) < 0) {
1162 printf("test_mbuf_pool() failed (2)\n");
1166 /* test that the pointer to the data on a packet mbuf is set properly */
1167 if (test_pktmbuf_pool_ptr(pktmbuf_pool) < 0) {
1168 printf("test_pktmbuf_pool_ptr() failed\n");
1172 /* test data manipulation in mbuf */
1173 if (test_one_pktmbuf(pktmbuf_pool) < 0) {
1174 printf("test_one_mbuf() failed\n");
1180 * do it another time, to check that allocation reinitialize
1181 * the mbuf correctly
1183 if (test_one_pktmbuf(pktmbuf_pool) < 0) {
1184 printf("test_one_mbuf() failed (2)\n");
1188 if (test_pktmbuf_with_non_ascii_data(pktmbuf_pool) < 0) {
1189 printf("test_pktmbuf_with_non_ascii_data() failed\n");
1193 /* test free pktmbuf segment one by one */
1194 if (test_pktmbuf_free_segment(pktmbuf_pool) < 0) {
1195 printf("test_pktmbuf_free_segment() failed.\n");
1199 if (testclone_testupdate_testdetach(pktmbuf_pool) < 0) {
1200 printf("testclone_and_testupdate() failed \n");
1204 if (test_attach_from_different_pool(pktmbuf_pool, pktmbuf_pool2) < 0) {
1205 printf("test_attach_from_different_pool() failed\n");
1209 if (test_refcnt_mbuf()<0){
1210 printf("test_refcnt_mbuf() failed \n");
1214 if (test_failing_mbuf_sanity_check(pktmbuf_pool) < 0) {
1215 printf("test_failing_mbuf_sanity_check() failed\n");
1219 if (test_mbuf_linearize_check(pktmbuf_pool) < 0) {
1220 printf("test_mbuf_linearize_check() failed\n");
1224 if (test_tx_offload() < 0) {
1225 printf("test_tx_offload() failed\n");
1231 rte_mempool_free(pktmbuf_pool);
1232 rte_mempool_free(pktmbuf_pool2);
1236 REGISTER_TEST_COMMAND(mbuf_autotest, test_mbuf);