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40 #include <sys/queue.h>
42 #include <rte_common.h>
43 #include <rte_malloc.h>
44 #include <rte_cycles.h>
45 #include <rte_random.h>
46 #include <rte_memory.h>
47 #include <rte_memzone.h>
50 #include <rte_string_fns.h>
55 #include <rte_fbk_hash.h>
56 #include <rte_jhash.h>
57 #include <rte_hash_crc.h>
59 /*******************************************************************************
60 * Hash function performance test configuration section. Each performance test
61 * will be performed HASHTEST_ITERATIONS times.
63 * The five arrays below control what tests are performed. Every combination
64 * from the array entries is tested.
66 static rte_hash_function hashtest_funcs
[] = {rte_jhash
, rte_hash_crc
};
67 static uint32_t hashtest_initvals
[] = {0};
68 static uint32_t hashtest_key_lens
[] = {0, 2, 4, 5, 6, 7, 8, 10, 11, 15, 16, 21, 31, 32, 33, 63, 64};
69 #define MAX_KEYSIZE 64
70 /******************************************************************************/
71 #define LOCAL_FBK_HASH_ENTRIES_MAX (1 << 15)
74 * Check condition and return an error if true. Assumes that "handle" is the
75 * name of the hash structure pointer to be freed.
77 #define RETURN_IF_ERROR(cond, str, ...) do { \
79 printf("ERROR line %d: " str "\n", __LINE__, ##__VA_ARGS__); \
80 if (handle) rte_hash_free(handle); \
85 #define RETURN_IF_ERROR_FBK(cond, str, ...) do { \
87 printf("ERROR line %d: " str "\n", __LINE__, ##__VA_ARGS__); \
88 if (handle) rte_fbk_hash_free(handle); \
93 /* 5-tuple key type */
100 } __attribute__((packed
));
103 * Hash function that always returns the same value, to easily test what
104 * happens when a bucket is full.
106 static uint32_t pseudo_hash(__attribute__((unused
)) const void *keys
,
107 __attribute__((unused
)) uint32_t key_len
,
108 __attribute__((unused
)) uint32_t init_val
)
114 * Print out result of unit test hash operation.
116 #if defined(UNIT_TEST_HASH_VERBOSE)
117 static void print_key_info(const char *msg
, const struct flow_key
*key
,
120 uint8_t *p
= (uint8_t *)key
;
123 printf("%s key:0x", msg
);
124 for (i
= 0; i
< sizeof(struct flow_key
); i
++) {
125 printf("%02X", p
[i
]);
127 printf(" @ pos %d\n", pos
);
130 static void print_key_info(__attribute__((unused
)) const char *msg
,
131 __attribute__((unused
)) const struct flow_key
*key
,
132 __attribute__((unused
)) int32_t pos
)
137 /* Keys used by unit test functions */
138 static struct flow_key keys
[5] = { {
139 .ip_src
= IPv4(0x03, 0x02, 0x01, 0x00),
140 .ip_dst
= IPv4(0x07, 0x06, 0x05, 0x04),
145 .ip_src
= IPv4(0x13, 0x12, 0x11, 0x10),
146 .ip_dst
= IPv4(0x17, 0x16, 0x15, 0x14),
151 .ip_src
= IPv4(0x23, 0x22, 0x21, 0x20),
152 .ip_dst
= IPv4(0x27, 0x26, 0x25, 0x24),
157 .ip_src
= IPv4(0x33, 0x32, 0x31, 0x30),
158 .ip_dst
= IPv4(0x37, 0x36, 0x35, 0x34),
163 .ip_src
= IPv4(0x43, 0x42, 0x41, 0x40),
164 .ip_dst
= IPv4(0x47, 0x46, 0x45, 0x44),
170 /* Parameters used for hash table in unit test functions. Name set later. */
171 static struct rte_hash_parameters ut_params
= {
173 .key_len
= sizeof(struct flow_key
), /* 13 */
174 .hash_func
= rte_jhash
,
175 .hash_func_init_val
= 0,
179 #define CRC32_ITERATIONS (1U << 10)
180 #define CRC32_DWORDS (1U << 6)
182 * Test if all CRC32 implementations yield the same hash value
185 test_crc32_hash_alg_equiv(void)
189 uint64_t data64
[CRC32_DWORDS
];
193 printf("\n# CRC32 implementations equivalence test\n");
194 for (i
= 0; i
< CRC32_ITERATIONS
; i
++) {
195 /* Randomizing data_len of data set */
196 data_len
= (size_t) ((rte_rand() % sizeof(data64
)) + 1);
197 init_val
= (uint32_t) rte_rand();
199 /* Fill the data set */
200 for (j
= 0; j
< CRC32_DWORDS
; j
++)
201 data64
[j
] = rte_rand();
203 /* Calculate software CRC32 */
204 rte_hash_crc_set_alg(CRC32_SW
);
205 hash_val
= rte_hash_crc(data64
, data_len
, init_val
);
207 /* Check against 4-byte-operand sse4.2 CRC32 if available */
208 rte_hash_crc_set_alg(CRC32_SSE42
);
209 if (hash_val
!= rte_hash_crc(data64
, data_len
, init_val
)) {
210 printf("Failed checking CRC32_SW against CRC32_SSE42\n");
214 /* Check against 8-byte-operand sse4.2 CRC32 if available */
215 rte_hash_crc_set_alg(CRC32_SSE42_x64
);
216 if (hash_val
!= rte_hash_crc(data64
, data_len
, init_val
)) {
217 printf("Failed checking CRC32_SW against CRC32_SSE42_x64\n");
221 /* Check against 8-byte-operand ARM64 CRC32 if available */
222 rte_hash_crc_set_alg(CRC32_ARM64
);
223 if (hash_val
!= rte_hash_crc(data64
, data_len
, init_val
)) {
224 printf("Failed checking CRC32_SW against CRC32_ARM64\n");
229 /* Resetting to best available algorithm */
230 rte_hash_crc_set_alg(CRC32_SSE42_x64
);
232 if (i
== CRC32_ITERATIONS
)
235 printf("Failed test data (hex, %zu bytes total):\n", data_len
);
236 for (j
= 0; j
< data_len
; j
++)
237 printf("%02X%c", ((uint8_t *)data64
)[j
],
238 ((j
+1) % 16 == 0 || j
== data_len
- 1) ? '\n' : ' ');
244 * Test a hash function.
246 static void run_hash_func_test(rte_hash_function f
, uint32_t init_val
,
249 static uint8_t key
[MAX_KEYSIZE
];
253 for (i
= 0; i
< key_len
; i
++)
254 key
[i
] = (uint8_t) rte_rand();
256 /* just to be on the safe side */
260 f(key
, key_len
, init_val
);
264 * Test all hash functions.
266 static void run_hash_func_tests(void)
271 i
< sizeof(hashtest_funcs
) / sizeof(rte_hash_function
);
274 j
< sizeof(hashtest_initvals
) / sizeof(uint32_t);
277 k
< sizeof(hashtest_key_lens
) / sizeof(uint32_t);
279 run_hash_func_test(hashtest_funcs
[i
],
280 hashtest_initvals
[j
],
281 hashtest_key_lens
[k
]);
288 * Basic sequence of operations for a single key:
294 static int test_add_delete(void)
296 struct rte_hash
*handle
;
297 /* test with standard add/lookup/delete functions */
298 int pos0
, expectedPos0
;
300 ut_params
.name
= "test1";
301 handle
= rte_hash_create(&ut_params
);
302 RETURN_IF_ERROR(handle
== NULL
, "hash creation failed");
304 pos0
= rte_hash_add_key(handle
, &keys
[0]);
305 print_key_info("Add", &keys
[0], pos0
);
306 RETURN_IF_ERROR(pos0
< 0, "failed to add key (pos0=%d)", pos0
);
309 pos0
= rte_hash_lookup(handle
, &keys
[0]);
310 print_key_info("Lkp", &keys
[0], pos0
);
311 RETURN_IF_ERROR(pos0
!= expectedPos0
,
312 "failed to find key (pos0=%d)", pos0
);
314 pos0
= rte_hash_del_key(handle
, &keys
[0]);
315 print_key_info("Del", &keys
[0], pos0
);
316 RETURN_IF_ERROR(pos0
!= expectedPos0
,
317 "failed to delete key (pos0=%d)", pos0
);
319 pos0
= rte_hash_lookup(handle
, &keys
[0]);
320 print_key_info("Lkp", &keys
[0], pos0
);
321 RETURN_IF_ERROR(pos0
!= -ENOENT
,
322 "fail: found key after deleting! (pos0=%d)", pos0
);
324 rte_hash_free(handle
);
326 /* repeat test with precomputed hash functions */
327 hash_sig_t hash_value
;
328 int pos1
, expectedPos1
;
330 handle
= rte_hash_create(&ut_params
);
331 RETURN_IF_ERROR(handle
== NULL
, "hash creation failed");
333 hash_value
= rte_hash_hash(handle
, &keys
[0]);
334 pos1
= rte_hash_add_key_with_hash(handle
, &keys
[0], hash_value
);
335 print_key_info("Add", &keys
[0], pos1
);
336 RETURN_IF_ERROR(pos1
< 0, "failed to add key (pos1=%d)", pos1
);
339 pos1
= rte_hash_lookup_with_hash(handle
, &keys
[0], hash_value
);
340 print_key_info("Lkp", &keys
[0], pos1
);
341 RETURN_IF_ERROR(pos1
!= expectedPos1
,
342 "failed to find key (pos1=%d)", pos1
);
344 pos1
= rte_hash_del_key_with_hash(handle
, &keys
[0], hash_value
);
345 print_key_info("Del", &keys
[0], pos1
);
346 RETURN_IF_ERROR(pos1
!= expectedPos1
,
347 "failed to delete key (pos1=%d)", pos1
);
349 pos1
= rte_hash_lookup_with_hash(handle
, &keys
[0], hash_value
);
350 print_key_info("Lkp", &keys
[0], pos1
);
351 RETURN_IF_ERROR(pos1
!= -ENOENT
,
352 "fail: found key after deleting! (pos1=%d)", pos1
);
354 rte_hash_free(handle
);
360 * Sequence of operations for a single key:
365 * - lookup: hit (updated data)
370 static int test_add_update_delete(void)
372 struct rte_hash
*handle
;
373 int pos0
, expectedPos0
;
375 ut_params
.name
= "test2";
376 handle
= rte_hash_create(&ut_params
);
377 RETURN_IF_ERROR(handle
== NULL
, "hash creation failed");
379 pos0
= rte_hash_del_key(handle
, &keys
[0]);
380 print_key_info("Del", &keys
[0], pos0
);
381 RETURN_IF_ERROR(pos0
!= -ENOENT
,
382 "fail: found non-existent key (pos0=%d)", pos0
);
384 pos0
= rte_hash_add_key(handle
, &keys
[0]);
385 print_key_info("Add", &keys
[0], pos0
);
386 RETURN_IF_ERROR(pos0
< 0, "failed to add key (pos0=%d)", pos0
);
389 pos0
= rte_hash_lookup(handle
, &keys
[0]);
390 print_key_info("Lkp", &keys
[0], pos0
);
391 RETURN_IF_ERROR(pos0
!= expectedPos0
,
392 "failed to find key (pos0=%d)", pos0
);
394 pos0
= rte_hash_add_key(handle
, &keys
[0]);
395 print_key_info("Add", &keys
[0], pos0
);
396 RETURN_IF_ERROR(pos0
!= expectedPos0
,
397 "failed to re-add key (pos0=%d)", pos0
);
399 pos0
= rte_hash_lookup(handle
, &keys
[0]);
400 print_key_info("Lkp", &keys
[0], pos0
);
401 RETURN_IF_ERROR(pos0
!= expectedPos0
,
402 "failed to find key (pos0=%d)", pos0
);
404 pos0
= rte_hash_del_key(handle
, &keys
[0]);
405 print_key_info("Del", &keys
[0], pos0
);
406 RETURN_IF_ERROR(pos0
!= expectedPos0
,
407 "failed to delete key (pos0=%d)", pos0
);
409 pos0
= rte_hash_del_key(handle
, &keys
[0]);
410 print_key_info("Del", &keys
[0], pos0
);
411 RETURN_IF_ERROR(pos0
!= -ENOENT
,
412 "fail: deleted already deleted key (pos0=%d)", pos0
);
414 pos0
= rte_hash_lookup(handle
, &keys
[0]);
415 print_key_info("Lkp", &keys
[0], pos0
);
416 RETURN_IF_ERROR(pos0
!= -ENOENT
,
417 "fail: found key after deleting! (pos0=%d)", pos0
);
419 rte_hash_free(handle
);
424 * Sequence of operations for retrieving a key with its position
428 * - get the key with its position: hit
430 * - try to get the deleted key: miss
433 static int test_hash_get_key_with_position(void)
435 struct rte_hash
*handle
= NULL
;
436 int pos
, expectedPos
, result
;
439 ut_params
.name
= "hash_get_key_w_pos";
440 handle
= rte_hash_create(&ut_params
);
441 RETURN_IF_ERROR(handle
== NULL
, "hash creation failed");
443 pos
= rte_hash_add_key(handle
, &keys
[0]);
444 print_key_info("Add", &keys
[0], pos
);
445 RETURN_IF_ERROR(pos
< 0, "failed to add key (pos0=%d)", pos
);
448 result
= rte_hash_get_key_with_position(handle
, pos
, &key
);
449 RETURN_IF_ERROR(result
!= 0, "error retrieving a key");
451 pos
= rte_hash_del_key(handle
, &keys
[0]);
452 print_key_info("Del", &keys
[0], pos
);
453 RETURN_IF_ERROR(pos
!= expectedPos
,
454 "failed to delete key (pos0=%d)", pos
);
456 result
= rte_hash_get_key_with_position(handle
, pos
, &key
);
457 RETURN_IF_ERROR(result
!= -ENOENT
, "non valid key retrieved");
459 rte_hash_free(handle
);
464 * Sequence of operations for find existing hash table
467 * - find existing table: hit
468 * - find non-existing table: miss
471 static int test_hash_find_existing(void)
473 struct rte_hash
*handle
= NULL
, *result
= NULL
;
475 /* Create hash table. */
476 ut_params
.name
= "hash_find_existing";
477 handle
= rte_hash_create(&ut_params
);
478 RETURN_IF_ERROR(handle
== NULL
, "hash creation failed");
480 /* Try to find existing hash table */
481 result
= rte_hash_find_existing("hash_find_existing");
482 RETURN_IF_ERROR(result
!= handle
, "could not find existing hash table");
484 /* Try to find non-existing hash table */
485 result
= rte_hash_find_existing("hash_find_non_existing");
486 RETURN_IF_ERROR(!(result
== NULL
), "found table that shouldn't exist");
489 rte_hash_free(handle
);
495 * Sequence of operations for 5 keys
498 * - add keys (update)
499 * - lookup keys: hit (updated data)
500 * - delete keys : hit
501 * - lookup keys: miss
503 static int test_five_keys(void)
505 struct rte_hash
*handle
;
506 const void *key_array
[5] = {0};
512 ut_params
.name
= "test3";
513 handle
= rte_hash_create(&ut_params
);
514 RETURN_IF_ERROR(handle
== NULL
, "hash creation failed");
517 for (i
= 0; i
< 5; i
++) {
518 pos
[i
] = rte_hash_add_key(handle
, &keys
[i
]);
519 print_key_info("Add", &keys
[i
], pos
[i
]);
520 RETURN_IF_ERROR(pos
[i
] < 0,
521 "failed to add key (pos[%u]=%d)", i
, pos
[i
]);
522 expected_pos
[i
] = pos
[i
];
526 for(i
= 0; i
< 5; i
++)
527 key_array
[i
] = &keys
[i
];
529 ret
= rte_hash_lookup_bulk(handle
, &key_array
[0], 5, (int32_t *)pos
);
531 for(i
= 0; i
< 5; i
++) {
532 print_key_info("Lkp", key_array
[i
], pos
[i
]);
533 RETURN_IF_ERROR(pos
[i
] != expected_pos
[i
],
534 "failed to find key (pos[%u]=%d)", i
, pos
[i
]);
538 for (i
= 0; i
< 5; i
++) {
539 pos
[i
] = rte_hash_add_key(handle
, &keys
[i
]);
540 print_key_info("Add", &keys
[i
], pos
[i
]);
541 RETURN_IF_ERROR(pos
[i
] != expected_pos
[i
],
542 "failed to add key (pos[%u]=%d)", i
, pos
[i
]);
546 for (i
= 0; i
< 5; i
++) {
547 pos
[i
] = rte_hash_lookup(handle
, &keys
[i
]);
548 print_key_info("Lkp", &keys
[i
], pos
[i
]);
549 RETURN_IF_ERROR(pos
[i
] != expected_pos
[i
],
550 "failed to find key (pos[%u]=%d)", i
, pos
[i
]);
554 for (i
= 0; i
< 5; i
++) {
555 pos
[i
] = rte_hash_del_key(handle
, &keys
[i
]);
556 print_key_info("Del", &keys
[i
], pos
[i
]);
557 RETURN_IF_ERROR(pos
[i
] != expected_pos
[i
],
558 "failed to delete key (pos[%u]=%d)", i
, pos
[i
]);
562 for (i
= 0; i
< 5; i
++) {
563 pos
[i
] = rte_hash_lookup(handle
, &keys
[i
]);
564 print_key_info("Lkp", &keys
[i
], pos
[i
]);
565 RETURN_IF_ERROR(pos
[i
] != -ENOENT
,
566 "found non-existent key (pos[%u]=%d)", i
, pos
[i
]);
570 ret
= rte_hash_lookup_bulk(handle
, &key_array
[0], 5, (int32_t *)pos
);
572 for (i
= 0; i
< 5; i
++) {
573 print_key_info("Lkp", key_array
[i
], pos
[i
]);
574 RETURN_IF_ERROR(pos
[i
] != -ENOENT
,
575 "found not-existent key (pos[%u]=%d)", i
, pos
[i
]);
578 rte_hash_free(handle
);
584 * Add keys to the same bucket until bucket full.
585 * - add 5 keys to the same bucket (hash created with 4 keys per bucket):
586 * first 4 successful, 5th successful, pushing existing item in bucket
587 * - lookup the 5 keys: 5 hits
588 * - add the 5 keys again: 5 OK
589 * - lookup the 5 keys: 5 hits (updated data)
590 * - delete the 5 keys: 5 OK
591 * - lookup the 5 keys: 5 misses
593 static int test_full_bucket(void)
595 struct rte_hash_parameters params_pseudo_hash
= {
598 .key_len
= sizeof(struct flow_key
), /* 13 */
599 .hash_func
= pseudo_hash
,
600 .hash_func_init_val
= 0,
603 struct rte_hash
*handle
;
608 handle
= rte_hash_create(¶ms_pseudo_hash
);
609 RETURN_IF_ERROR(handle
== NULL
, "hash creation failed");
612 for (i
= 0; i
< 4; i
++) {
613 pos
[i
] = rte_hash_add_key(handle
, &keys
[i
]);
614 print_key_info("Add", &keys
[i
], pos
[i
]);
615 RETURN_IF_ERROR(pos
[i
] < 0,
616 "failed to add key (pos[%u]=%d)", i
, pos
[i
]);
617 expected_pos
[i
] = pos
[i
];
620 * This should work and will push one of the items
621 * in the bucket because it is full
623 pos
[4] = rte_hash_add_key(handle
, &keys
[4]);
624 print_key_info("Add", &keys
[4], pos
[4]);
625 RETURN_IF_ERROR(pos
[4] < 0,
626 "failed to add key (pos[4]=%d)", pos
[4]);
627 expected_pos
[4] = pos
[4];
630 for (i
= 0; i
< 5; i
++) {
631 pos
[i
] = rte_hash_lookup(handle
, &keys
[i
]);
632 print_key_info("Lkp", &keys
[i
], pos
[i
]);
633 RETURN_IF_ERROR(pos
[i
] != expected_pos
[i
],
634 "failed to find key (pos[%u]=%d)", i
, pos
[i
]);
638 for (i
= 0; i
< 5; i
++) {
639 pos
[i
] = rte_hash_add_key(handle
, &keys
[i
]);
640 print_key_info("Add", &keys
[i
], pos
[i
]);
641 RETURN_IF_ERROR(pos
[i
] != expected_pos
[i
],
642 "failed to add key (pos[%u]=%d)", i
, pos
[i
]);
646 for (i
= 0; i
< 5; i
++) {
647 pos
[i
] = rte_hash_lookup(handle
, &keys
[i
]);
648 print_key_info("Lkp", &keys
[i
], pos
[i
]);
649 RETURN_IF_ERROR(pos
[i
] != expected_pos
[i
],
650 "failed to find key (pos[%u]=%d)", i
, pos
[i
]);
653 /* Delete 1 key, check other keys are still found */
654 pos
[1] = rte_hash_del_key(handle
, &keys
[1]);
655 print_key_info("Del", &keys
[1], pos
[1]);
656 RETURN_IF_ERROR(pos
[1] != expected_pos
[1],
657 "failed to delete key (pos[1]=%d)", pos
[1]);
658 pos
[3] = rte_hash_lookup(handle
, &keys
[3]);
659 print_key_info("Lkp", &keys
[3], pos
[3]);
660 RETURN_IF_ERROR(pos
[3] != expected_pos
[3],
661 "failed lookup after deleting key from same bucket "
662 "(pos[3]=%d)", pos
[3]);
664 /* Go back to previous state */
665 pos
[1] = rte_hash_add_key(handle
, &keys
[1]);
666 print_key_info("Add", &keys
[1], pos
[1]);
667 expected_pos
[1] = pos
[1];
668 RETURN_IF_ERROR(pos
[1] < 0, "failed to add key (pos[1]=%d)", pos
[1]);
671 for (i
= 0; i
< 5; i
++) {
672 pos
[i
] = rte_hash_del_key(handle
, &keys
[i
]);
673 print_key_info("Del", &keys
[i
], pos
[i
]);
674 RETURN_IF_ERROR(pos
[i
] != expected_pos
[i
],
675 "failed to delete key (pos[%u]=%d)", i
, pos
[i
]);
679 for (i
= 0; i
< 5; i
++) {
680 pos
[i
] = rte_hash_lookup(handle
, &keys
[i
]);
681 print_key_info("Lkp", &keys
[i
], pos
[i
]);
682 RETURN_IF_ERROR(pos
[i
] != -ENOENT
,
683 "fail: found non-existent key (pos[%u]=%d)", i
, pos
[i
]);
686 rte_hash_free(handle
);
688 /* Cover the NULL case. */
693 /******************************************************************************/
695 fbk_hash_unit_test(void)
697 struct rte_fbk_hash_params params
= {
698 .name
= "fbk_hash_test",
699 .entries
= LOCAL_FBK_HASH_ENTRIES_MAX
,
700 .entries_per_bucket
= 4,
704 struct rte_fbk_hash_params invalid_params_1
= {
706 .entries
= LOCAL_FBK_HASH_ENTRIES_MAX
+ 1, /* Not power of 2 */
707 .entries_per_bucket
= 4,
711 struct rte_fbk_hash_params invalid_params_2
= {
714 .entries_per_bucket
= 3, /* Not power of 2 */
718 struct rte_fbk_hash_params invalid_params_3
= {
720 .entries
= 0, /* Entries is 0 */
721 .entries_per_bucket
= 4,
725 struct rte_fbk_hash_params invalid_params_4
= {
727 .entries
= LOCAL_FBK_HASH_ENTRIES_MAX
,
728 .entries_per_bucket
= 0, /* Entries per bucket is 0 */
732 struct rte_fbk_hash_params invalid_params_5
= {
735 .entries_per_bucket
= 8, /* Entries per bucket > entries */
739 struct rte_fbk_hash_params invalid_params_6
= {
741 .entries
= RTE_FBK_HASH_ENTRIES_MAX
* 2, /* Entries > max allowed */
742 .entries_per_bucket
= 4,
746 struct rte_fbk_hash_params invalid_params_7
= {
748 .entries
= RTE_FBK_HASH_ENTRIES_MAX
,
749 .entries_per_bucket
= RTE_FBK_HASH_ENTRIES_PER_BUCKET_MAX
* 2, /* Entries > max allowed */
753 struct rte_fbk_hash_params invalid_params_8
= {
755 .entries
= RTE_FBK_HASH_ENTRIES_MAX
,
756 .entries_per_bucket
= 4,
757 .socket_id
= RTE_MAX_NUMA_NODES
+ 1, /* invalid socket */
760 /* try to create two hashes with identical names
761 * in this case, trying to create a second one will not
762 * fail but will simply return pointer to the existing
763 * hash with that name. sort of like a "find hash by name" :-)
765 struct rte_fbk_hash_params invalid_params_same_name_1
= {
766 .name
= "same_name", /* hash with identical name */
768 .entries_per_bucket
= 2,
772 /* trying to create this hash should return a pointer to an existing hash */
773 struct rte_fbk_hash_params invalid_params_same_name_2
= {
774 .name
= "same_name", /* hash with identical name */
775 .entries
= RTE_FBK_HASH_ENTRIES_MAX
,
776 .entries_per_bucket
= 4,
780 /* this is a sanity check for "same name" test
781 * creating this hash will check if we are actually able to create
782 * multiple hashes with different names (instead of having just one).
784 struct rte_fbk_hash_params different_name
= {
785 .name
= "different_name", /* different name */
786 .entries
= LOCAL_FBK_HASH_ENTRIES_MAX
,
787 .entries_per_bucket
= 4,
791 struct rte_fbk_hash_params params_jhash
= {
793 .entries
= LOCAL_FBK_HASH_ENTRIES_MAX
,
794 .entries_per_bucket
= 4,
796 .hash_func
= rte_jhash_1word
, /* Tests for different hash_func */
797 .init_val
= RTE_FBK_HASH_INIT_VAL_DEFAULT
,
800 struct rte_fbk_hash_params params_nohash
= {
801 .name
= "valid nohash",
802 .entries
= LOCAL_FBK_HASH_ENTRIES_MAX
,
803 .entries_per_bucket
= 4,
805 .hash_func
= NULL
, /* Tests for null hash_func */
806 .init_val
= RTE_FBK_HASH_INIT_VAL_DEFAULT
,
809 struct rte_fbk_hash_table
*handle
, *tmp
;
811 {0xc6e18639, 0xe67c201c, 0xd4c8cffd, 0x44728691, 0xd5430fa9};
812 uint16_t vals
[5] = {28108, 5699, 38490, 2166, 61571};
817 /* Try creating hashes with invalid parameters */
818 printf("# Testing hash creation with invalid parameters "
819 "- expect error msgs\n");
820 handle
= rte_fbk_hash_create(&invalid_params_1
);
821 RETURN_IF_ERROR_FBK(handle
!= NULL
, "fbk hash creation should have failed");
823 handle
= rte_fbk_hash_create(&invalid_params_2
);
824 RETURN_IF_ERROR_FBK(handle
!= NULL
, "fbk hash creation should have failed");
826 handle
= rte_fbk_hash_create(&invalid_params_3
);
827 RETURN_IF_ERROR_FBK(handle
!= NULL
, "fbk hash creation should have failed");
829 handle
= rte_fbk_hash_create(&invalid_params_4
);
830 RETURN_IF_ERROR_FBK(handle
!= NULL
, "fbk hash creation should have failed");
832 handle
= rte_fbk_hash_create(&invalid_params_5
);
833 RETURN_IF_ERROR_FBK(handle
!= NULL
, "fbk hash creation should have failed");
835 handle
= rte_fbk_hash_create(&invalid_params_6
);
836 RETURN_IF_ERROR_FBK(handle
!= NULL
, "fbk hash creation should have failed");
838 handle
= rte_fbk_hash_create(&invalid_params_7
);
839 RETURN_IF_ERROR_FBK(handle
!= NULL
, "fbk hash creation should have failed");
841 handle
= rte_fbk_hash_create(&invalid_params_8
);
842 RETURN_IF_ERROR_FBK(handle
!= NULL
, "fbk hash creation should have failed");
844 handle
= rte_fbk_hash_create(&invalid_params_same_name_1
);
845 RETURN_IF_ERROR_FBK(handle
== NULL
, "fbk hash creation should have succeeded");
847 tmp
= rte_fbk_hash_create(&invalid_params_same_name_2
);
849 rte_fbk_hash_free(tmp
);
850 RETURN_IF_ERROR_FBK(tmp
!= NULL
, "fbk hash creation should have failed");
852 /* we are not freeing handle here because we need a hash list
853 * to be not empty for the next test */
855 /* create a hash in non-empty list - good for coverage */
856 tmp
= rte_fbk_hash_create(&different_name
);
857 RETURN_IF_ERROR_FBK(tmp
== NULL
, "fbk hash creation should have succeeded");
859 /* free both hashes */
860 rte_fbk_hash_free(handle
);
861 rte_fbk_hash_free(tmp
);
863 /* Create empty jhash hash. */
864 handle
= rte_fbk_hash_create(¶ms_jhash
);
865 RETURN_IF_ERROR_FBK(handle
== NULL
, "fbk jhash hash creation failed");
868 rte_fbk_hash_free(handle
);
870 /* Create empty jhash hash. */
871 handle
= rte_fbk_hash_create(¶ms_nohash
);
872 RETURN_IF_ERROR_FBK(handle
== NULL
, "fbk nohash hash creation failed");
875 rte_fbk_hash_free(handle
);
877 /* Create empty hash. */
878 handle
= rte_fbk_hash_create(¶ms
);
879 RETURN_IF_ERROR_FBK(handle
== NULL
, "fbk hash creation failed");
881 used_entries
= rte_fbk_hash_get_load_factor(handle
) * LOCAL_FBK_HASH_ENTRIES_MAX
;
882 RETURN_IF_ERROR_FBK((unsigned)used_entries
!= 0, \
883 "load factor right after creation is not zero but it should be");
885 for (i
= 0; i
< 5; i
++) {
886 status
= rte_fbk_hash_add_key(handle
, keys
[i
], vals
[i
]);
887 RETURN_IF_ERROR_FBK(status
!= 0, "fbk hash add failed");
890 used_entries
= rte_fbk_hash_get_load_factor(handle
) * LOCAL_FBK_HASH_ENTRIES_MAX
;
891 RETURN_IF_ERROR_FBK((unsigned)used_entries
!= (unsigned)((((double)5)/LOCAL_FBK_HASH_ENTRIES_MAX
)*LOCAL_FBK_HASH_ENTRIES_MAX
), \
892 "load factor now is not as expected");
893 /* Find value of added keys. */
894 for (i
= 0; i
< 5; i
++) {
895 status
= rte_fbk_hash_lookup(handle
, keys
[i
]);
896 RETURN_IF_ERROR_FBK(status
!= vals
[i
],
897 "fbk hash lookup failed");
900 /* Change value of added keys. */
901 for (i
= 0; i
< 5; i
++) {
902 status
= rte_fbk_hash_add_key(handle
, keys
[i
], vals
[4 - i
]);
903 RETURN_IF_ERROR_FBK(status
!= 0, "fbk hash update failed");
906 /* Find new values. */
907 for (i
= 0; i
< 5; i
++) {
908 status
= rte_fbk_hash_lookup(handle
, keys
[i
]);
909 RETURN_IF_ERROR_FBK(status
!= vals
[4-i
],
910 "fbk hash lookup failed");
913 /* Delete keys individually. */
914 for (i
= 0; i
< 5; i
++) {
915 status
= rte_fbk_hash_delete_key(handle
, keys
[i
]);
916 RETURN_IF_ERROR_FBK(status
!= 0, "fbk hash delete failed");
919 used_entries
= rte_fbk_hash_get_load_factor(handle
) * LOCAL_FBK_HASH_ENTRIES_MAX
;
920 RETURN_IF_ERROR_FBK((unsigned)used_entries
!= 0, \
921 "load factor right after deletion is not zero but it should be");
922 /* Lookup should now fail. */
923 for (i
= 0; i
< 5; i
++) {
924 status
= rte_fbk_hash_lookup(handle
, keys
[i
]);
925 RETURN_IF_ERROR_FBK(status
== 0,
926 "fbk hash lookup should have failed");
929 /* Add keys again. */
930 for (i
= 0; i
< 5; i
++) {
931 status
= rte_fbk_hash_add_key(handle
, keys
[i
], vals
[i
]);
932 RETURN_IF_ERROR_FBK(status
!= 0, "fbk hash add failed");
935 /* Make sure they were added. */
936 for (i
= 0; i
< 5; i
++) {
937 status
= rte_fbk_hash_lookup(handle
, keys
[i
]);
938 RETURN_IF_ERROR_FBK(status
!= vals
[i
],
939 "fbk hash lookup failed");
942 /* Clear all entries. */
943 rte_fbk_hash_clear_all(handle
);
945 /* Lookup should fail. */
946 for (i
= 0; i
< 5; i
++) {
947 status
= rte_fbk_hash_lookup(handle
, keys
[i
]);
948 RETURN_IF_ERROR_FBK(status
== 0,
949 "fbk hash lookup should have failed");
954 /* fill up the hash_table */
955 for (i
= 0; i
< RTE_FBK_HASH_ENTRIES_MAX
+ 1; i
++)
956 rte_fbk_hash_add_key(handle
, i
, (uint16_t) i
);
958 /* Find non-existent key in a full hashtable */
959 status
= rte_fbk_hash_lookup(handle
, RTE_FBK_HASH_ENTRIES_MAX
+ 1);
960 RETURN_IF_ERROR_FBK(status
!= -ENOENT
,
961 "fbk hash lookup succeeded");
963 /* Delete non-existent key in a full hashtable */
964 status
= rte_fbk_hash_delete_key(handle
, RTE_FBK_HASH_ENTRIES_MAX
+ 1);
965 RETURN_IF_ERROR_FBK(status
!= -ENOENT
,
966 "fbk hash delete succeeded");
968 /* Delete one key from a full hashtable */
969 status
= rte_fbk_hash_delete_key(handle
, 1);
970 RETURN_IF_ERROR_FBK(status
!= 0,
971 "fbk hash delete failed");
973 /* Clear all entries. */
974 rte_fbk_hash_clear_all(handle
);
977 rte_fbk_hash_free(handle
);
979 /* Cover the NULL case. */
980 rte_fbk_hash_free(0);
986 * Sequence of operations for find existing fbk hash table
989 * - find existing table: hit
990 * - find non-existing table: miss
993 static int test_fbk_hash_find_existing(void)
995 struct rte_fbk_hash_params params
= {
996 .name
= "fbk_hash_find_existing",
997 .entries
= LOCAL_FBK_HASH_ENTRIES_MAX
,
998 .entries_per_bucket
= 4,
1001 struct rte_fbk_hash_table
*handle
= NULL
, *result
= NULL
;
1003 /* Create hash table. */
1004 handle
= rte_fbk_hash_create(¶ms
);
1005 RETURN_IF_ERROR_FBK(handle
== NULL
, "fbk hash creation failed");
1007 /* Try to find existing fbk hash table */
1008 result
= rte_fbk_hash_find_existing("fbk_hash_find_existing");
1009 RETURN_IF_ERROR_FBK(result
!= handle
, "could not find existing fbk hash table");
1011 /* Try to find non-existing fbk hash table */
1012 result
= rte_fbk_hash_find_existing("fbk_hash_find_non_existing");
1013 RETURN_IF_ERROR_FBK(!(result
== NULL
), "found fbk table that shouldn't exist");
1016 rte_fbk_hash_free(handle
);
1021 #define BUCKET_ENTRIES 4
1023 * Do tests for hash creation with bad parameters.
1025 static int test_hash_creation_with_bad_parameters(void)
1027 struct rte_hash
*handle
, *tmp
;
1028 struct rte_hash_parameters params
;
1030 handle
= rte_hash_create(NULL
);
1031 if (handle
!= NULL
) {
1032 rte_hash_free(handle
);
1033 printf("Impossible creating hash sucessfully without any parameter\n");
1037 memcpy(¶ms
, &ut_params
, sizeof(params
));
1038 params
.name
= "creation_with_bad_parameters_0";
1039 params
.entries
= RTE_HASH_ENTRIES_MAX
+ 1;
1040 handle
= rte_hash_create(¶ms
);
1041 if (handle
!= NULL
) {
1042 rte_hash_free(handle
);
1043 printf("Impossible creating hash sucessfully with entries in parameter exceeded\n");
1047 memcpy(¶ms
, &ut_params
, sizeof(params
));
1048 params
.name
= "creation_with_bad_parameters_2";
1049 params
.entries
= BUCKET_ENTRIES
- 1;
1050 handle
= rte_hash_create(¶ms
);
1051 if (handle
!= NULL
) {
1052 rte_hash_free(handle
);
1053 printf("Impossible creating hash sucessfully if entries less than bucket_entries in parameter\n");
1057 memcpy(¶ms
, &ut_params
, sizeof(params
));
1058 params
.name
= "creation_with_bad_parameters_3";
1060 handle
= rte_hash_create(¶ms
);
1061 if (handle
!= NULL
) {
1062 rte_hash_free(handle
);
1063 printf("Impossible creating hash sucessfully if key_len in parameter is zero\n");
1067 memcpy(¶ms
, &ut_params
, sizeof(params
));
1068 params
.name
= "creation_with_bad_parameters_4";
1069 params
.socket_id
= RTE_MAX_NUMA_NODES
+ 1;
1070 handle
= rte_hash_create(¶ms
);
1071 if (handle
!= NULL
) {
1072 rte_hash_free(handle
);
1073 printf("Impossible creating hash sucessfully with invalid socket\n");
1077 /* test with same name should fail */
1078 memcpy(¶ms
, &ut_params
, sizeof(params
));
1079 params
.name
= "same_name";
1080 handle
= rte_hash_create(¶ms
);
1081 if (handle
== NULL
) {
1082 printf("Cannot create first hash table with 'same_name'\n");
1085 tmp
= rte_hash_create(¶ms
);
1087 printf("Creation of hash table with same name should fail\n");
1088 rte_hash_free(handle
);
1092 rte_hash_free(handle
);
1094 printf("# Test successful. No more errors expected\n");
1100 * Do tests for hash creation with parameters that look incorrect
1101 * but are actually valid.
1104 test_hash_creation_with_good_parameters(void)
1106 struct rte_hash
*handle
;
1107 struct rte_hash_parameters params
;
1109 /* create with null hash function - should choose DEFAULT_HASH_FUNC */
1110 memcpy(¶ms
, &ut_params
, sizeof(params
));
1111 params
.name
= "name";
1112 params
.hash_func
= NULL
;
1113 handle
= rte_hash_create(¶ms
);
1114 if (handle
== NULL
) {
1115 printf("Creating hash with null hash_func failed\n");
1119 rte_hash_free(handle
);
1124 #define ITERATIONS 3
1126 * Test to see the average table utilization (entries added/max entries)
1127 * before hitting a random entry that cannot be added
1129 static int test_average_table_utilization(void)
1131 struct rte_hash
*handle
;
1132 uint8_t simple_key
[MAX_KEYSIZE
];
1134 unsigned added_keys
, average_keys_added
= 0;
1137 printf("\n# Running test to determine average utilization"
1138 "\n before adding elements begins to fail\n");
1139 printf("Measuring performance, please wait");
1141 ut_params
.entries
= 1 << 16;
1142 ut_params
.name
= "test_average_utilization";
1143 ut_params
.hash_func
= rte_jhash
;
1144 handle
= rte_hash_create(&ut_params
);
1145 RETURN_IF_ERROR(handle
== NULL
, "hash creation failed");
1147 for (j
= 0; j
< ITERATIONS
; j
++) {
1149 /* Add random entries until key cannot be added */
1150 for (added_keys
= 0; ret
>= 0; added_keys
++) {
1151 for (i
= 0; i
< ut_params
.key_len
; i
++)
1152 simple_key
[i
] = rte_rand() % 255;
1153 ret
= rte_hash_add_key(handle
, simple_key
);
1155 if (ret
!= -ENOSPC
) {
1156 printf("Unexpected error when adding keys\n");
1157 rte_hash_free(handle
);
1161 average_keys_added
+= added_keys
;
1163 /* Reset the table */
1164 rte_hash_reset(handle
);
1166 /* Print a dot to show progress on operations */
1171 average_keys_added
/= ITERATIONS
;
1173 printf("\nAverage table utilization = %.2f%% (%u/%u)\n",
1174 ((double) average_keys_added
/ ut_params
.entries
* 100),
1175 average_keys_added
, ut_params
.entries
);
1176 rte_hash_free(handle
);
1181 #define NUM_ENTRIES 256
1182 static int test_hash_iteration(void)
1184 struct rte_hash
*handle
;
1186 uint8_t keys
[NUM_ENTRIES
][MAX_KEYSIZE
];
1187 const void *next_key
;
1189 void *data
[NUM_ENTRIES
];
1190 unsigned added_keys
;
1194 ut_params
.entries
= NUM_ENTRIES
;
1195 ut_params
.name
= "test_hash_iteration";
1196 ut_params
.hash_func
= rte_jhash
;
1197 ut_params
.key_len
= 16;
1198 handle
= rte_hash_create(&ut_params
);
1199 RETURN_IF_ERROR(handle
== NULL
, "hash creation failed");
1201 /* Add random entries until key cannot be added */
1202 for (added_keys
= 0; added_keys
< NUM_ENTRIES
; added_keys
++) {
1203 data
[added_keys
] = (void *) ((uintptr_t) rte_rand());
1204 for (i
= 0; i
< ut_params
.key_len
; i
++)
1205 keys
[added_keys
][i
] = rte_rand() % 255;
1206 ret
= rte_hash_add_key_data(handle
, keys
[added_keys
], data
[added_keys
]);
1211 /* Iterate through the hash table */
1212 while (rte_hash_iterate(handle
, &next_key
, &next_data
, &iter
) >= 0) {
1213 /* Search for the key in the list of keys added */
1214 for (i
= 0; i
< NUM_ENTRIES
; i
++) {
1215 if (memcmp(next_key
, keys
[i
], ut_params
.key_len
) == 0) {
1216 if (next_data
!= data
[i
]) {
1217 printf("Data found in the hash table is"
1218 "not the data added with the key\n");
1225 if (i
== NUM_ENTRIES
) {
1226 printf("Key found in the hash table was not added\n");
1231 /* Check if all keys have been iterated */
1232 if (added_keys
!= 0) {
1233 printf("There were still %u keys to iterate\n", added_keys
);
1237 rte_hash_free(handle
);
1241 rte_hash_free(handle
);
1245 static uint8_t key
[16] = {0x00, 0x01, 0x02, 0x03,
1246 0x04, 0x05, 0x06, 0x07,
1247 0x08, 0x09, 0x0a, 0x0b,
1248 0x0c, 0x0d, 0x0e, 0x0f};
1249 static struct rte_hash_parameters hash_params_ex
= {
1254 .hash_func_init_val
= 0,
1259 * add/delete key with jhash2
1262 test_hash_add_delete_jhash2(void)
1265 struct rte_hash
*handle
;
1268 hash_params_ex
.name
= "hash_test_jhash2";
1269 hash_params_ex
.key_len
= 4;
1270 hash_params_ex
.hash_func
= (rte_hash_function
)rte_jhash_32b
;
1272 handle
= rte_hash_create(&hash_params_ex
);
1273 if (handle
== NULL
) {
1274 printf("test_hash_add_delete_jhash2 fail to create hash\n");
1277 pos1
= rte_hash_add_key(handle
, (void *)&key
[0]);
1279 printf("test_hash_add_delete_jhash2 fail to add hash key\n");
1283 pos2
= rte_hash_del_key(handle
, (void *)&key
[0]);
1284 if (pos2
< 0 || pos1
!= pos2
) {
1285 printf("test_hash_add_delete_jhash2 delete different key from being added\n");
1292 rte_hash_free(handle
);
1298 * add/delete (2) key with jhash2
1301 test_hash_add_delete_2_jhash2(void)
1304 struct rte_hash
*handle
;
1307 hash_params_ex
.name
= "hash_test_2_jhash2";
1308 hash_params_ex
.key_len
= 8;
1309 hash_params_ex
.hash_func
= (rte_hash_function
)rte_jhash_32b
;
1311 handle
= rte_hash_create(&hash_params_ex
);
1315 pos1
= rte_hash_add_key(handle
, (void *)&key
[0]);
1319 pos2
= rte_hash_del_key(handle
, (void *)&key
[0]);
1320 if (pos2
< 0 || pos1
!= pos2
)
1327 rte_hash_free(handle
);
1333 test_hash_jhash_1word(const void *key
, uint32_t length
, uint32_t initval
)
1335 const uint32_t *k
= key
;
1337 RTE_SET_USED(length
);
1339 return rte_jhash_1word(k
[0], initval
);
1343 test_hash_jhash_2word(const void *key
, uint32_t length
, uint32_t initval
)
1345 const uint32_t *k
= key
;
1347 RTE_SET_USED(length
);
1349 return rte_jhash_2words(k
[0], k
[1], initval
);
1353 test_hash_jhash_3word(const void *key
, uint32_t length
, uint32_t initval
)
1355 const uint32_t *k
= key
;
1357 RTE_SET_USED(length
);
1359 return rte_jhash_3words(k
[0], k
[1], k
[2], initval
);
1363 * add/delete key with jhash 1word
1366 test_hash_add_delete_jhash_1word(void)
1369 struct rte_hash
*handle
;
1372 hash_params_ex
.name
= "hash_test_jhash_1word";
1373 hash_params_ex
.key_len
= 4;
1374 hash_params_ex
.hash_func
= test_hash_jhash_1word
;
1376 handle
= rte_hash_create(&hash_params_ex
);
1378 goto fail_jhash_1word
;
1380 pos1
= rte_hash_add_key(handle
, (void *)&key
[0]);
1382 goto fail_jhash_1word
;
1384 pos2
= rte_hash_del_key(handle
, (void *)&key
[0]);
1385 if (pos2
< 0 || pos1
!= pos2
)
1386 goto fail_jhash_1word
;
1392 rte_hash_free(handle
);
1398 * add/delete key with jhash 2word
1401 test_hash_add_delete_jhash_2word(void)
1404 struct rte_hash
*handle
;
1407 hash_params_ex
.name
= "hash_test_jhash_2word";
1408 hash_params_ex
.key_len
= 8;
1409 hash_params_ex
.hash_func
= test_hash_jhash_2word
;
1411 handle
= rte_hash_create(&hash_params_ex
);
1413 goto fail_jhash_2word
;
1415 pos1
= rte_hash_add_key(handle
, (void *)&key
[0]);
1417 goto fail_jhash_2word
;
1419 pos2
= rte_hash_del_key(handle
, (void *)&key
[0]);
1420 if (pos2
< 0 || pos1
!= pos2
)
1421 goto fail_jhash_2word
;
1427 rte_hash_free(handle
);
1433 * add/delete key with jhash 3word
1436 test_hash_add_delete_jhash_3word(void)
1439 struct rte_hash
*handle
;
1442 hash_params_ex
.name
= "hash_test_jhash_3word";
1443 hash_params_ex
.key_len
= 12;
1444 hash_params_ex
.hash_func
= test_hash_jhash_3word
;
1446 handle
= rte_hash_create(&hash_params_ex
);
1448 goto fail_jhash_3word
;
1450 pos1
= rte_hash_add_key(handle
, (void *)&key
[0]);
1452 goto fail_jhash_3word
;
1454 pos2
= rte_hash_del_key(handle
, (void *)&key
[0]);
1455 if (pos2
< 0 || pos1
!= pos2
)
1456 goto fail_jhash_3word
;
1462 rte_hash_free(handle
);
1468 * Do all unit and performance tests.
1473 if (test_add_delete() < 0)
1475 if (test_hash_add_delete_jhash2() < 0)
1477 if (test_hash_add_delete_2_jhash2() < 0)
1479 if (test_hash_add_delete_jhash_1word() < 0)
1481 if (test_hash_add_delete_jhash_2word() < 0)
1483 if (test_hash_add_delete_jhash_3word() < 0)
1485 if (test_hash_get_key_with_position() < 0)
1487 if (test_hash_find_existing() < 0)
1489 if (test_add_update_delete() < 0)
1491 if (test_five_keys() < 0)
1493 if (test_full_bucket() < 0)
1496 if (test_fbk_hash_find_existing() < 0)
1498 if (fbk_hash_unit_test() < 0)
1500 if (test_hash_creation_with_bad_parameters() < 0)
1502 if (test_hash_creation_with_good_parameters() < 0)
1504 if (test_average_table_utilization() < 0)
1506 if (test_hash_iteration() < 0)
1509 run_hash_func_tests();
1511 if (test_crc32_hash_alg_equiv() < 0)
1517 REGISTER_TEST_COMMAND(hash_autotest
, test_hash
);