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dpdk-fm10k/app/test/test_hash.c
Bruce Richardson a9de470cc7 test: move to app directory 
Since all other apps have been moved to the "app" folder, the autotest app
remains alone in the test folder. Rather than having an entire top-level
folder for this, we can move it back to where it all started in early
versions of DPDK - the "app/" folder.

This move has a couple of advantages:
* This reduces clutter at the top level of the project, due to one less
  folder.
* It eliminates the separate build task necessary for building the
  autotests using make "make test-build" which means that developers are
  less likely to miss something in their own compilation tests
* It re-aligns the final location of the test binary in the app folder when
  building with make with it's location in the source tree.

For meson builds, the autotest app is different from the other apps in that
it needs a series of different test cases defined for it for use by "meson
test". Therefore, it does not get built as part of the main loop in the
app folder, but gets built separately at the end.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
2019-02-26 15:29:27 +01:00

1779 lines
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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2015 Intel Corporation
*/
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <errno.h>
#include <sys/queue.h>
#include <rte_common.h>
#include <rte_malloc.h>
#include <rte_cycles.h>
#include <rte_random.h>
#include <rte_memory.h>
#include <rte_eal.h>
#include <rte_ip.h>
#include <rte_string_fns.h>
#include "test.h"
#include <rte_hash.h>
#include <rte_fbk_hash.h>
#include <rte_jhash.h>
#include <rte_hash_crc.h>
/*******************************************************************************
* Hash function performance test configuration section. Each performance test
* will be performed HASHTEST_ITERATIONS times.
*
* The five arrays below control what tests are performed. Every combination
* from the array entries is tested.
*/
static rte_hash_function hashtest_funcs[] = {rte_jhash, rte_hash_crc};
static uint32_t hashtest_initvals[] = {0};
static uint32_t hashtest_key_lens[] = {0, 2, 4, 5, 6, 7, 8, 10, 11, 15, 16, 21, 31, 32, 33, 63, 64};
#define MAX_KEYSIZE 64
/******************************************************************************/
#define LOCAL_FBK_HASH_ENTRIES_MAX (1 << 15)
/*
* Check condition and return an error if true. Assumes that "handle" is the
* name of the hash structure pointer to be freed.
*/
#define RETURN_IF_ERROR(cond, str, ...) do { \
if (cond) { \
printf("ERROR line %d: " str "\n", __LINE__, ##__VA_ARGS__); \
if (handle) rte_hash_free(handle); \
return -1; \
} \
} while(0)
#define RETURN_IF_ERROR_FBK(cond, str, ...) do { \
if (cond) { \
printf("ERROR line %d: " str "\n", __LINE__, ##__VA_ARGS__); \
if (handle) rte_fbk_hash_free(handle); \
return -1; \
} \
} while(0)
/* 5-tuple key type */
struct flow_key {
uint32_t ip_src;
uint32_t ip_dst;
uint16_t port_src;
uint16_t port_dst;
uint8_t proto;
} __attribute__((packed));
/*
* Hash function that always returns the same value, to easily test what
* happens when a bucket is full.
*/
static uint32_t pseudo_hash(__attribute__((unused)) const void *keys,
__attribute__((unused)) uint32_t key_len,
__attribute__((unused)) uint32_t init_val)
{
return 3;
}
#define UNIT_TEST_HASH_VERBOSE 0
/*
* Print out result of unit test hash operation.
*/
static void print_key_info(const char *msg, const struct flow_key *key,
int32_t pos)
{
if (UNIT_TEST_HASH_VERBOSE) {
const uint8_t *p = (const uint8_t *)key;
unsigned int i;
printf("%s key:0x", msg);
for (i = 0; i < sizeof(struct flow_key); i++)
printf("%02X", p[i]);
printf(" @ pos %d\n", pos);
}
}
/* Keys used by unit test functions */
static struct flow_key keys[5] = { {
.ip_src = IPv4(0x03, 0x02, 0x01, 0x00),
.ip_dst = IPv4(0x07, 0x06, 0x05, 0x04),
.port_src = 0x0908,
.port_dst = 0x0b0a,
.proto = 0x0c,
}, {
.ip_src = IPv4(0x13, 0x12, 0x11, 0x10),
.ip_dst = IPv4(0x17, 0x16, 0x15, 0x14),
.port_src = 0x1918,
.port_dst = 0x1b1a,
.proto = 0x1c,
}, {
.ip_src = IPv4(0x23, 0x22, 0x21, 0x20),
.ip_dst = IPv4(0x27, 0x26, 0x25, 0x24),
.port_src = 0x2928,
.port_dst = 0x2b2a,
.proto = 0x2c,
}, {
.ip_src = IPv4(0x33, 0x32, 0x31, 0x30),
.ip_dst = IPv4(0x37, 0x36, 0x35, 0x34),
.port_src = 0x3938,
.port_dst = 0x3b3a,
.proto = 0x3c,
}, {
.ip_src = IPv4(0x43, 0x42, 0x41, 0x40),
.ip_dst = IPv4(0x47, 0x46, 0x45, 0x44),
.port_src = 0x4948,
.port_dst = 0x4b4a,
.proto = 0x4c,
} };
/* Parameters used for hash table in unit test functions. Name set later. */
static struct rte_hash_parameters ut_params = {
.entries = 64,
.key_len = sizeof(struct flow_key), /* 13 */
.hash_func = rte_jhash,
.hash_func_init_val = 0,
.socket_id = 0,
};
#define CRC32_ITERATIONS (1U << 10)
#define CRC32_DWORDS (1U << 6)
/*
* Test if all CRC32 implementations yield the same hash value
*/
static int
test_crc32_hash_alg_equiv(void)
{
uint32_t hash_val;
uint32_t init_val;
uint64_t data64[CRC32_DWORDS];
unsigned i, j;
size_t data_len;
printf("\n# CRC32 implementations equivalence test\n");
for (i = 0; i < CRC32_ITERATIONS; i++) {
/* Randomizing data_len of data set */
data_len = (size_t) ((rte_rand() % sizeof(data64)) + 1);
init_val = (uint32_t) rte_rand();
/* Fill the data set */
for (j = 0; j < CRC32_DWORDS; j++)
data64[j] = rte_rand();
/* Calculate software CRC32 */
rte_hash_crc_set_alg(CRC32_SW);
hash_val = rte_hash_crc(data64, data_len, init_val);
/* Check against 4-byte-operand sse4.2 CRC32 if available */
rte_hash_crc_set_alg(CRC32_SSE42);
if (hash_val != rte_hash_crc(data64, data_len, init_val)) {
printf("Failed checking CRC32_SW against CRC32_SSE42\n");
break;
}
/* Check against 8-byte-operand sse4.2 CRC32 if available */
rte_hash_crc_set_alg(CRC32_SSE42_x64);
if (hash_val != rte_hash_crc(data64, data_len, init_val)) {
printf("Failed checking CRC32_SW against CRC32_SSE42_x64\n");
break;
}
/* Check against 8-byte-operand ARM64 CRC32 if available */
rte_hash_crc_set_alg(CRC32_ARM64);
if (hash_val != rte_hash_crc(data64, data_len, init_val)) {
printf("Failed checking CRC32_SW against CRC32_ARM64\n");
break;
}
}
/* Resetting to best available algorithm */
rte_hash_crc_set_alg(CRC32_SSE42_x64);
if (i == CRC32_ITERATIONS)
return 0;
printf("Failed test data (hex, %zu bytes total):\n", data_len);
for (j = 0; j < data_len; j++)
printf("%02X%c", ((uint8_t *)data64)[j],
((j+1) % 16 == 0 || j == data_len - 1) ? '\n' : ' ');
return -1;
}
/*
* Test a hash function.
*/
static void run_hash_func_test(rte_hash_function f, uint32_t init_val,
uint32_t key_len)
{
static uint8_t key[MAX_KEYSIZE];
unsigned i;
for (i = 0; i < key_len; i++)
key[i] = (uint8_t) rte_rand();
/* just to be on the safe side */
if (!f)
return;
f(key, key_len, init_val);
}
/*
* Test all hash functions.
*/
static void run_hash_func_tests(void)
{
unsigned i, j, k;
for (i = 0;
i < sizeof(hashtest_funcs) / sizeof(rte_hash_function);
i++) {
for (j = 0;
j < sizeof(hashtest_initvals) / sizeof(uint32_t);
j++) {
for (k = 0;
k < sizeof(hashtest_key_lens) / sizeof(uint32_t);
k++) {
run_hash_func_test(hashtest_funcs[i],
hashtest_initvals[j],
hashtest_key_lens[k]);
}
}
}
}
/*
* Basic sequence of operations for a single key:
* - add
* - lookup (hit)
* - delete
* - lookup (miss)
*
* Repeat the test case when 'free on delete' is disabled.
* - add
* - lookup (hit)
* - delete
* - lookup (miss)
* - free
*/
static int test_add_delete(void)
{
struct rte_hash *handle;
/* test with standard add/lookup/delete functions */
int pos0, expectedPos0;
ut_params.name = "test1";
handle = rte_hash_create(&ut_params);
RETURN_IF_ERROR(handle == NULL, "hash creation failed");
pos0 = rte_hash_add_key(handle, &keys[0]);
print_key_info("Add", &keys[0], pos0);
RETURN_IF_ERROR(pos0 < 0, "failed to add key (pos0=%d)", pos0);
expectedPos0 = pos0;
pos0 = rte_hash_lookup(handle, &keys[0]);
print_key_info("Lkp", &keys[0], pos0);
RETURN_IF_ERROR(pos0 != expectedPos0,
"failed to find key (pos0=%d)", pos0);
pos0 = rte_hash_del_key(handle, &keys[0]);
print_key_info("Del", &keys[0], pos0);
RETURN_IF_ERROR(pos0 != expectedPos0,
"failed to delete key (pos0=%d)", pos0);
pos0 = rte_hash_lookup(handle, &keys[0]);
print_key_info("Lkp", &keys[0], pos0);
RETURN_IF_ERROR(pos0 != -ENOENT,
"fail: found key after deleting! (pos0=%d)", pos0);
rte_hash_free(handle);
/* repeat test with precomputed hash functions */
hash_sig_t hash_value;
int pos1, expectedPos1, delPos1;
ut_params.extra_flag = RTE_HASH_EXTRA_FLAGS_NO_FREE_ON_DEL;
handle = rte_hash_create(&ut_params);
RETURN_IF_ERROR(handle == NULL, "hash creation failed");
ut_params.extra_flag = 0;
hash_value = rte_hash_hash(handle, &keys[0]);
pos1 = rte_hash_add_key_with_hash(handle, &keys[0], hash_value);
print_key_info("Add", &keys[0], pos1);
RETURN_IF_ERROR(pos1 < 0, "failed to add key (pos1=%d)", pos1);
expectedPos1 = pos1;
pos1 = rte_hash_lookup_with_hash(handle, &keys[0], hash_value);
print_key_info("Lkp", &keys[0], pos1);
RETURN_IF_ERROR(pos1 != expectedPos1,
"failed to find key (pos1=%d)", pos1);
pos1 = rte_hash_del_key_with_hash(handle, &keys[0], hash_value);
print_key_info("Del", &keys[0], pos1);
RETURN_IF_ERROR(pos1 != expectedPos1,
"failed to delete key (pos1=%d)", pos1);
delPos1 = pos1;
pos1 = rte_hash_lookup_with_hash(handle, &keys[0], hash_value);
print_key_info("Lkp", &keys[0], pos1);
RETURN_IF_ERROR(pos1 != -ENOENT,
"fail: found key after deleting! (pos1=%d)", pos1);
pos1 = rte_hash_free_key_with_position(handle, delPos1);
print_key_info("Free", &keys[0], delPos1);
RETURN_IF_ERROR(pos1 != 0,
"failed to free key (pos1=%d)", delPos1);
rte_hash_free(handle);
return 0;
}
/*
* Sequence of operations for a single key:
* - delete: miss
* - add
* - lookup: hit
* - add: update
* - lookup: hit (updated data)
* - delete: hit
* - delete: miss
* - lookup: miss
*/
static int test_add_update_delete(void)
{
struct rte_hash *handle;
int pos0, expectedPos0;
ut_params.name = "test2";
handle = rte_hash_create(&ut_params);
RETURN_IF_ERROR(handle == NULL, "hash creation failed");
pos0 = rte_hash_del_key(handle, &keys[0]);
print_key_info("Del", &keys[0], pos0);
RETURN_IF_ERROR(pos0 != -ENOENT,
"fail: found non-existent key (pos0=%d)", pos0);
pos0 = rte_hash_add_key(handle, &keys[0]);
print_key_info("Add", &keys[0], pos0);
RETURN_IF_ERROR(pos0 < 0, "failed to add key (pos0=%d)", pos0);
expectedPos0 = pos0;
pos0 = rte_hash_lookup(handle, &keys[0]);
print_key_info("Lkp", &keys[0], pos0);
RETURN_IF_ERROR(pos0 != expectedPos0,
"failed to find key (pos0=%d)", pos0);
pos0 = rte_hash_add_key(handle, &keys[0]);
print_key_info("Add", &keys[0], pos0);
RETURN_IF_ERROR(pos0 != expectedPos0,
"failed to re-add key (pos0=%d)", pos0);
pos0 = rte_hash_lookup(handle, &keys[0]);
print_key_info("Lkp", &keys[0], pos0);
RETURN_IF_ERROR(pos0 != expectedPos0,
"failed to find key (pos0=%d)", pos0);
pos0 = rte_hash_del_key(handle, &keys[0]);
print_key_info("Del", &keys[0], pos0);
RETURN_IF_ERROR(pos0 != expectedPos0,
"failed to delete key (pos0=%d)", pos0);
pos0 = rte_hash_del_key(handle, &keys[0]);
print_key_info("Del", &keys[0], pos0);
RETURN_IF_ERROR(pos0 != -ENOENT,
"fail: deleted already deleted key (pos0=%d)", pos0);
pos0 = rte_hash_lookup(handle, &keys[0]);
print_key_info("Lkp", &keys[0], pos0);
RETURN_IF_ERROR(pos0 != -ENOENT,
"fail: found key after deleting! (pos0=%d)", pos0);
rte_hash_free(handle);
return 0;
}
/*
* Sequence of operations for a single key with 'disable free on del' set:
* - delete: miss
* - add
* - lookup: hit
* - add: update
* - lookup: hit (updated data)
* - delete: hit
* - delete: miss
* - lookup: miss
* - free: hit
* - lookup: miss
*/
static int test_add_update_delete_free(void)
{
struct rte_hash *handle;
int pos0, expectedPos0, delPos0, result;
ut_params.name = "test2";
ut_params.extra_flag = RTE_HASH_EXTRA_FLAGS_NO_FREE_ON_DEL;
handle = rte_hash_create(&ut_params);
RETURN_IF_ERROR(handle == NULL, "hash creation failed");
ut_params.extra_flag = 0;
pos0 = rte_hash_del_key(handle, &keys[0]);
print_key_info("Del", &keys[0], pos0);
RETURN_IF_ERROR(pos0 != -ENOENT,
"fail: found non-existent key (pos0=%d)", pos0);
pos0 = rte_hash_add_key(handle, &keys[0]);
print_key_info("Add", &keys[0], pos0);
RETURN_IF_ERROR(pos0 < 0, "failed to add key (pos0=%d)", pos0);
expectedPos0 = pos0;
pos0 = rte_hash_lookup(handle, &keys[0]);
print_key_info("Lkp", &keys[0], pos0);
RETURN_IF_ERROR(pos0 != expectedPos0,
"failed to find key (pos0=%d)", pos0);
pos0 = rte_hash_add_key(handle, &keys[0]);
print_key_info("Add", &keys[0], pos0);
RETURN_IF_ERROR(pos0 != expectedPos0,
"failed to re-add key (pos0=%d)", pos0);
pos0 = rte_hash_lookup(handle, &keys[0]);
print_key_info("Lkp", &keys[0], pos0);
RETURN_IF_ERROR(pos0 != expectedPos0,
"failed to find key (pos0=%d)", pos0);
delPos0 = rte_hash_del_key(handle, &keys[0]);
print_key_info("Del", &keys[0], delPos0);
RETURN_IF_ERROR(delPos0 != expectedPos0,
"failed to delete key (pos0=%d)", delPos0);
pos0 = rte_hash_del_key(handle, &keys[0]);
print_key_info("Del", &keys[0], pos0);
RETURN_IF_ERROR(pos0 != -ENOENT,
"fail: deleted already deleted key (pos0=%d)", pos0);
pos0 = rte_hash_lookup(handle, &keys[0]);
print_key_info("Lkp", &keys[0], pos0);
RETURN_IF_ERROR(pos0 != -ENOENT,
"fail: found key after deleting! (pos0=%d)", pos0);
result = rte_hash_free_key_with_position(handle, delPos0);
print_key_info("Free", &keys[0], delPos0);
RETURN_IF_ERROR(result != 0,
"failed to free key (pos1=%d)", delPos0);
pos0 = rte_hash_lookup(handle, &keys[0]);
print_key_info("Lkp", &keys[0], pos0);
RETURN_IF_ERROR(pos0 != -ENOENT,
"fail: found key after deleting! (pos0=%d)", pos0);
rte_hash_free(handle);
return 0;
}
/*
* Sequence of operations for retrieving a key with its position
*
* - create table
* - add key
* - get the key with its position: hit
* - delete key
* - try to get the deleted key: miss
*
* Repeat the test case when 'free on delete' is disabled.
* - create table
* - add key
* - get the key with its position: hit
* - delete key
* - try to get the deleted key: hit
* - free key
* - try to get the deleted key: miss
*
*/
static int test_hash_get_key_with_position(void)
{
struct rte_hash *handle = NULL;
int pos, expectedPos, delPos, result;
void *key;
ut_params.name = "hash_get_key_w_pos";
handle = rte_hash_create(&ut_params);
RETURN_IF_ERROR(handle == NULL, "hash creation failed");
pos = rte_hash_add_key(handle, &keys[0]);
print_key_info("Add", &keys[0], pos);
RETURN_IF_ERROR(pos < 0, "failed to add key (pos0=%d)", pos);
expectedPos = pos;
result = rte_hash_get_key_with_position(handle, pos, &key);
RETURN_IF_ERROR(result != 0, "error retrieving a key");
pos = rte_hash_del_key(handle, &keys[0]);
print_key_info("Del", &keys[0], pos);
RETURN_IF_ERROR(pos != expectedPos,
"failed to delete key (pos0=%d)", pos);
result = rte_hash_get_key_with_position(handle, pos, &key);
RETURN_IF_ERROR(result != -ENOENT, "non valid key retrieved");
rte_hash_free(handle);
ut_params.name = "hash_get_key_w_pos";
ut_params.extra_flag = RTE_HASH_EXTRA_FLAGS_NO_FREE_ON_DEL;
handle = rte_hash_create(&ut_params);
RETURN_IF_ERROR(handle == NULL, "hash creation failed");
ut_params.extra_flag = 0;
pos = rte_hash_add_key(handle, &keys[0]);
print_key_info("Add", &keys[0], pos);
RETURN_IF_ERROR(pos < 0, "failed to add key (pos0=%d)", pos);
expectedPos = pos;
result = rte_hash_get_key_with_position(handle, pos, &key);
RETURN_IF_ERROR(result != 0, "error retrieving a key");
delPos = rte_hash_del_key(handle, &keys[0]);
print_key_info("Del", &keys[0], delPos);
RETURN_IF_ERROR(delPos != expectedPos,
"failed to delete key (pos0=%d)", delPos);
result = rte_hash_get_key_with_position(handle, delPos, &key);
RETURN_IF_ERROR(result != -ENOENT, "non valid key retrieved");
result = rte_hash_free_key_with_position(handle, delPos);
print_key_info("Free", &keys[0], delPos);
RETURN_IF_ERROR(result != 0,
"failed to free key (pos1=%d)", delPos);
result = rte_hash_get_key_with_position(handle, delPos, &key);
RETURN_IF_ERROR(result != -ENOENT, "non valid key retrieved");
rte_hash_free(handle);
return 0;
}
/*
* Sequence of operations for find existing hash table
*
* - create table
* - find existing table: hit
* - find non-existing table: miss
*
*/
static int test_hash_find_existing(void)
{
struct rte_hash *handle = NULL, *result = NULL;
/* Create hash table. */
ut_params.name = "hash_find_existing";
handle = rte_hash_create(&ut_params);
RETURN_IF_ERROR(handle == NULL, "hash creation failed");
/* Try to find existing hash table */
result = rte_hash_find_existing("hash_find_existing");
RETURN_IF_ERROR(result != handle, "could not find existing hash table");
/* Try to find non-existing hash table */
result = rte_hash_find_existing("hash_find_non_existing");
RETURN_IF_ERROR(!(result == NULL), "found table that shouldn't exist");
/* Cleanup. */
rte_hash_free(handle);
return 0;
}
/*
* Sequence of operations for 5 keys
* - add keys
* - lookup keys: hit
* - add keys (update)
* - lookup keys: hit (updated data)
* - delete keys : hit
* - lookup keys: miss
*/
static int test_five_keys(void)
{
struct rte_hash *handle;
const void *key_array[5] = {0};
int pos[5];
int expected_pos[5];
unsigned i;
int ret;
ut_params.name = "test3";
handle = rte_hash_create(&ut_params);
RETURN_IF_ERROR(handle == NULL, "hash creation failed");
/* Add */
for (i = 0; i < 5; i++) {
pos[i] = rte_hash_add_key(handle, &keys[i]);
print_key_info("Add", &keys[i], pos[i]);
RETURN_IF_ERROR(pos[i] < 0,
"failed to add key (pos[%u]=%d)", i, pos[i]);
expected_pos[i] = pos[i];
}
/* Lookup */
for(i = 0; i < 5; i++)
key_array[i] = &keys[i];
ret = rte_hash_lookup_bulk(handle, &key_array[0], 5, (int32_t *)pos);
if(ret == 0)
for(i = 0; i < 5; i++) {
print_key_info("Lkp", key_array[i], pos[i]);
RETURN_IF_ERROR(pos[i] != expected_pos[i],
"failed to find key (pos[%u]=%d)", i, pos[i]);
}
/* Add - update */
for (i = 0; i < 5; i++) {
pos[i] = rte_hash_add_key(handle, &keys[i]);
print_key_info("Add", &keys[i], pos[i]);
RETURN_IF_ERROR(pos[i] != expected_pos[i],
"failed to add key (pos[%u]=%d)", i, pos[i]);
}
/* Lookup */
for (i = 0; i < 5; i++) {
pos[i] = rte_hash_lookup(handle, &keys[i]);
print_key_info("Lkp", &keys[i], pos[i]);
RETURN_IF_ERROR(pos[i] != expected_pos[i],
"failed to find key (pos[%u]=%d)", i, pos[i]);
}
/* Delete */
for (i = 0; i < 5; i++) {
pos[i] = rte_hash_del_key(handle, &keys[i]);
print_key_info("Del", &keys[i], pos[i]);
RETURN_IF_ERROR(pos[i] != expected_pos[i],
"failed to delete key (pos[%u]=%d)", i, pos[i]);
}
/* Lookup */
for (i = 0; i < 5; i++) {
pos[i] = rte_hash_lookup(handle, &keys[i]);
print_key_info("Lkp", &keys[i], pos[i]);
RETURN_IF_ERROR(pos[i] != -ENOENT,
"found non-existent key (pos[%u]=%d)", i, pos[i]);
}
/* Lookup multi */
ret = rte_hash_lookup_bulk(handle, &key_array[0], 5, (int32_t *)pos);
if (ret == 0)
for (i = 0; i < 5; i++) {
print_key_info("Lkp", key_array[i], pos[i]);
RETURN_IF_ERROR(pos[i] != -ENOENT,
"found not-existent key (pos[%u]=%d)", i, pos[i]);
}
rte_hash_free(handle);
return 0;
}
/*
* Add keys to the same bucket until bucket full.
* - add 5 keys to the same bucket (hash created with 4 keys per bucket):
* first 4 successful, 5th successful, pushing existing item in bucket
* - lookup the 5 keys: 5 hits
* - add the 5 keys again: 5 OK
* - lookup the 5 keys: 5 hits (updated data)
* - delete the 5 keys: 5 OK
* - lookup the 5 keys: 5 misses
*/
static int test_full_bucket(void)
{
struct rte_hash_parameters params_pseudo_hash = {
.name = "test4",
.entries = 64,
.key_len = sizeof(struct flow_key), /* 13 */
.hash_func = pseudo_hash,
.hash_func_init_val = 0,
.socket_id = 0,
};
struct rte_hash *handle;
int pos[5];
int expected_pos[5];
unsigned i;
handle = rte_hash_create(&params_pseudo_hash);
RETURN_IF_ERROR(handle == NULL, "hash creation failed");
/* Fill bucket */
for (i = 0; i < 4; i++) {
pos[i] = rte_hash_add_key(handle, &keys[i]);
print_key_info("Add", &keys[i], pos[i]);
RETURN_IF_ERROR(pos[i] < 0,
"failed to add key (pos[%u]=%d)", i, pos[i]);
expected_pos[i] = pos[i];
}
/*
* This should work and will push one of the items
* in the bucket because it is full
*/
pos[4] = rte_hash_add_key(handle, &keys[4]);
print_key_info("Add", &keys[4], pos[4]);
RETURN_IF_ERROR(pos[4] < 0,
"failed to add key (pos[4]=%d)", pos[4]);
expected_pos[4] = pos[4];
/* Lookup */
for (i = 0; i < 5; i++) {
pos[i] = rte_hash_lookup(handle, &keys[i]);
print_key_info("Lkp", &keys[i], pos[i]);
RETURN_IF_ERROR(pos[i] != expected_pos[i],
"failed to find key (pos[%u]=%d)", i, pos[i]);
}
/* Add - update */
for (i = 0; i < 5; i++) {
pos[i] = rte_hash_add_key(handle, &keys[i]);
print_key_info("Add", &keys[i], pos[i]);
RETURN_IF_ERROR(pos[i] != expected_pos[i],
"failed to add key (pos[%u]=%d)", i, pos[i]);
}
/* Lookup */
for (i = 0; i < 5; i++) {
pos[i] = rte_hash_lookup(handle, &keys[i]);
print_key_info("Lkp", &keys[i], pos[i]);
RETURN_IF_ERROR(pos[i] != expected_pos[i],
"failed to find key (pos[%u]=%d)", i, pos[i]);
}
/* Delete 1 key, check other keys are still found */
pos[1] = rte_hash_del_key(handle, &keys[1]);
print_key_info("Del", &keys[1], pos[1]);
RETURN_IF_ERROR(pos[1] != expected_pos[1],
"failed to delete key (pos[1]=%d)", pos[1]);
pos[3] = rte_hash_lookup(handle, &keys[3]);
print_key_info("Lkp", &keys[3], pos[3]);
RETURN_IF_ERROR(pos[3] != expected_pos[3],
"failed lookup after deleting key from same bucket "
"(pos[3]=%d)", pos[3]);
/* Go back to previous state */
pos[1] = rte_hash_add_key(handle, &keys[1]);
print_key_info("Add", &keys[1], pos[1]);
expected_pos[1] = pos[1];
RETURN_IF_ERROR(pos[1] < 0, "failed to add key (pos[1]=%d)", pos[1]);
/* Delete */
for (i = 0; i < 5; i++) {
pos[i] = rte_hash_del_key(handle, &keys[i]);
print_key_info("Del", &keys[i], pos[i]);
RETURN_IF_ERROR(pos[i] != expected_pos[i],
"failed to delete key (pos[%u]=%d)", i, pos[i]);
}
/* Lookup */
for (i = 0; i < 5; i++) {
pos[i] = rte_hash_lookup(handle, &keys[i]);
print_key_info("Lkp", &keys[i], pos[i]);
RETURN_IF_ERROR(pos[i] != -ENOENT,
"fail: found non-existent key (pos[%u]=%d)", i, pos[i]);
}
rte_hash_free(handle);
/* Cover the NULL case. */
rte_hash_free(0);
return 0;
}
/*
* Similar to the test above (full bucket test), but for extendable buckets.
*/
static int test_extendable_bucket(void)
{
struct rte_hash_parameters params_pseudo_hash = {
.name = "test5",
.entries = 64,
.key_len = sizeof(struct flow_key), /* 13 */
.hash_func = pseudo_hash,
.hash_func_init_val = 0,
.socket_id = 0,
.extra_flag = RTE_HASH_EXTRA_FLAGS_EXT_TABLE
};
struct rte_hash *handle;
int pos[64];
int expected_pos[64];
unsigned int i;
struct flow_key rand_keys[64];
for (i = 0; i < 64; i++) {
rand_keys[i].port_dst = i;
rand_keys[i].port_src = i+1;
}
handle = rte_hash_create(&params_pseudo_hash);
RETURN_IF_ERROR(handle == NULL, "hash creation failed");
/* Fill bucket */
for (i = 0; i < 64; i++) {
pos[i] = rte_hash_add_key(handle, &rand_keys[i]);
print_key_info("Add", &rand_keys[i], pos[i]);
RETURN_IF_ERROR(pos[i] < 0,
"failed to add key (pos[%u]=%d)", i, pos[i]);
expected_pos[i] = pos[i];
}
/* Lookup */
for (i = 0; i < 64; i++) {
pos[i] = rte_hash_lookup(handle, &rand_keys[i]);
print_key_info("Lkp", &rand_keys[i], pos[i]);
RETURN_IF_ERROR(pos[i] != expected_pos[i],
"failed to find key (pos[%u]=%d)", i, pos[i]);
}
/* Add - update */
for (i = 0; i < 64; i++) {
pos[i] = rte_hash_add_key(handle, &rand_keys[i]);
print_key_info("Add", &rand_keys[i], pos[i]);
RETURN_IF_ERROR(pos[i] != expected_pos[i],
"failed to add key (pos[%u]=%d)", i, pos[i]);
}
/* Lookup */
for (i = 0; i < 64; i++) {
pos[i] = rte_hash_lookup(handle, &rand_keys[i]);
print_key_info("Lkp", &rand_keys[i], pos[i]);
RETURN_IF_ERROR(pos[i] != expected_pos[i],
"failed to find key (pos[%u]=%d)", i, pos[i]);
}
/* Delete 1 key, check other keys are still found */
pos[35] = rte_hash_del_key(handle, &rand_keys[35]);
print_key_info("Del", &rand_keys[35], pos[35]);
RETURN_IF_ERROR(pos[35] != expected_pos[35],
"failed to delete key (pos[1]=%d)", pos[35]);
pos[20] = rte_hash_lookup(handle, &rand_keys[20]);
print_key_info("Lkp", &rand_keys[20], pos[20]);
RETURN_IF_ERROR(pos[20] != expected_pos[20],
"failed lookup after deleting key from same bucket "
"(pos[20]=%d)", pos[20]);
/* Go back to previous state */
pos[35] = rte_hash_add_key(handle, &rand_keys[35]);
print_key_info("Add", &rand_keys[35], pos[35]);
expected_pos[35] = pos[35];
RETURN_IF_ERROR(pos[35] < 0, "failed to add key (pos[1]=%d)", pos[35]);
/* Delete */
for (i = 0; i < 64; i++) {
pos[i] = rte_hash_del_key(handle, &rand_keys[i]);
print_key_info("Del", &rand_keys[i], pos[i]);
RETURN_IF_ERROR(pos[i] != expected_pos[i],
"failed to delete key (pos[%u]=%d)", i, pos[i]);
}
/* Lookup */
for (i = 0; i < 64; i++) {
pos[i] = rte_hash_lookup(handle, &rand_keys[i]);
print_key_info("Lkp", &rand_keys[i], pos[i]);
RETURN_IF_ERROR(pos[i] != -ENOENT,
"fail: found non-existent key (pos[%u]=%d)", i, pos[i]);
}
/* Add again */
for (i = 0; i < 64; i++) {
pos[i] = rte_hash_add_key(handle, &rand_keys[i]);
print_key_info("Add", &rand_keys[i], pos[i]);
RETURN_IF_ERROR(pos[i] < 0,
"failed to add key (pos[%u]=%d)", i, pos[i]);
expected_pos[i] = pos[i];
}
rte_hash_free(handle);
/* Cover the NULL case. */
rte_hash_free(0);
return 0;
}
/******************************************************************************/
static int
fbk_hash_unit_test(void)
{
struct rte_fbk_hash_params params = {
.name = "fbk_hash_test",
.entries = LOCAL_FBK_HASH_ENTRIES_MAX,
.entries_per_bucket = 4,
.socket_id = 0,
};
struct rte_fbk_hash_params invalid_params_1 = {
.name = "invalid_1",
.entries = LOCAL_FBK_HASH_ENTRIES_MAX + 1, /* Not power of 2 */
.entries_per_bucket = 4,
.socket_id = 0,
};
struct rte_fbk_hash_params invalid_params_2 = {
.name = "invalid_2",
.entries = 4,
.entries_per_bucket = 3, /* Not power of 2 */
.socket_id = 0,
};
struct rte_fbk_hash_params invalid_params_3 = {
.name = "invalid_3",
.entries = 0, /* Entries is 0 */
.entries_per_bucket = 4,
.socket_id = 0,
};
struct rte_fbk_hash_params invalid_params_4 = {
.name = "invalid_4",
.entries = LOCAL_FBK_HASH_ENTRIES_MAX,
.entries_per_bucket = 0, /* Entries per bucket is 0 */
.socket_id = 0,
};
struct rte_fbk_hash_params invalid_params_5 = {
.name = "invalid_5",
.entries = 4,
.entries_per_bucket = 8, /* Entries per bucket > entries */
.socket_id = 0,
};
struct rte_fbk_hash_params invalid_params_6 = {
.name = "invalid_6",
.entries = RTE_FBK_HASH_ENTRIES_MAX * 2, /* Entries > max allowed */
.entries_per_bucket = 4,
.socket_id = 0,
};
struct rte_fbk_hash_params invalid_params_7 = {
.name = "invalid_7",
.entries = RTE_FBK_HASH_ENTRIES_MAX,
.entries_per_bucket = RTE_FBK_HASH_ENTRIES_PER_BUCKET_MAX * 2, /* Entries > max allowed */
.socket_id = 0,
};
struct rte_fbk_hash_params invalid_params_8 = {
.name = "invalid_7",
.entries = RTE_FBK_HASH_ENTRIES_MAX,
.entries_per_bucket = 4,
.socket_id = RTE_MAX_NUMA_NODES + 1, /* invalid socket */
};
/* try to create two hashes with identical names
* in this case, trying to create a second one will not
* fail but will simply return pointer to the existing
* hash with that name. sort of like a "find hash by name" :-)
*/
struct rte_fbk_hash_params invalid_params_same_name_1 = {
.name = "same_name", /* hash with identical name */
.entries = 4,
.entries_per_bucket = 2,
.socket_id = 0,
};
/* trying to create this hash should return a pointer to an existing hash */
struct rte_fbk_hash_params invalid_params_same_name_2 = {
.name = "same_name", /* hash with identical name */
.entries = RTE_FBK_HASH_ENTRIES_MAX,
.entries_per_bucket = 4,
.socket_id = 0,
};
/* this is a sanity check for "same name" test
* creating this hash will check if we are actually able to create
* multiple hashes with different names (instead of having just one).
*/
struct rte_fbk_hash_params different_name = {
.name = "different_name", /* different name */
.entries = LOCAL_FBK_HASH_ENTRIES_MAX,
.entries_per_bucket = 4,
.socket_id = 0,
};
struct rte_fbk_hash_params params_jhash = {
.name = "valid",
.entries = LOCAL_FBK_HASH_ENTRIES_MAX,
.entries_per_bucket = 4,
.socket_id = 0,
.hash_func = rte_jhash_1word, /* Tests for different hash_func */
.init_val = RTE_FBK_HASH_INIT_VAL_DEFAULT,
};
struct rte_fbk_hash_params params_nohash = {
.name = "valid nohash",
.entries = LOCAL_FBK_HASH_ENTRIES_MAX,
.entries_per_bucket = 4,
.socket_id = 0,
.hash_func = NULL, /* Tests for null hash_func */
.init_val = RTE_FBK_HASH_INIT_VAL_DEFAULT,
};
struct rte_fbk_hash_table *handle, *tmp;
uint32_t keys[5] =
{0xc6e18639, 0xe67c201c, 0xd4c8cffd, 0x44728691, 0xd5430fa9};
uint16_t vals[5] = {28108, 5699, 38490, 2166, 61571};
int status;
unsigned i;
double used_entries;
/* Try creating hashes with invalid parameters */
printf("# Testing hash creation with invalid parameters "
"- expect error msgs\n");
handle = rte_fbk_hash_create(&invalid_params_1);
RETURN_IF_ERROR_FBK(handle != NULL, "fbk hash creation should have failed");
handle = rte_fbk_hash_create(&invalid_params_2);
RETURN_IF_ERROR_FBK(handle != NULL, "fbk hash creation should have failed");
handle = rte_fbk_hash_create(&invalid_params_3);
RETURN_IF_ERROR_FBK(handle != NULL, "fbk hash creation should have failed");
handle = rte_fbk_hash_create(&invalid_params_4);
RETURN_IF_ERROR_FBK(handle != NULL, "fbk hash creation should have failed");
handle = rte_fbk_hash_create(&invalid_params_5);
RETURN_IF_ERROR_FBK(handle != NULL, "fbk hash creation should have failed");
handle = rte_fbk_hash_create(&invalid_params_6);
RETURN_IF_ERROR_FBK(handle != NULL, "fbk hash creation should have failed");
handle = rte_fbk_hash_create(&invalid_params_7);
RETURN_IF_ERROR_FBK(handle != NULL, "fbk hash creation should have failed");
handle = rte_fbk_hash_create(&invalid_params_8);
RETURN_IF_ERROR_FBK(handle != NULL, "fbk hash creation should have failed");
handle = rte_fbk_hash_create(&invalid_params_same_name_1);
RETURN_IF_ERROR_FBK(handle == NULL, "fbk hash creation should have succeeded");
tmp = rte_fbk_hash_create(&invalid_params_same_name_2);
if (tmp != NULL)
rte_fbk_hash_free(tmp);
RETURN_IF_ERROR_FBK(tmp != NULL, "fbk hash creation should have failed");
/* we are not freeing handle here because we need a hash list
* to be not empty for the next test */
/* create a hash in non-empty list - good for coverage */
tmp = rte_fbk_hash_create(&different_name);
RETURN_IF_ERROR_FBK(tmp == NULL, "fbk hash creation should have succeeded");
/* free both hashes */
rte_fbk_hash_free(handle);
rte_fbk_hash_free(tmp);
/* Create empty jhash hash. */
handle = rte_fbk_hash_create(&params_jhash);
RETURN_IF_ERROR_FBK(handle == NULL, "fbk jhash hash creation failed");
/* Cleanup. */
rte_fbk_hash_free(handle);
/* Create empty jhash hash. */
handle = rte_fbk_hash_create(&params_nohash);
RETURN_IF_ERROR_FBK(handle == NULL, "fbk nohash hash creation failed");
/* Cleanup. */
rte_fbk_hash_free(handle);
/* Create empty hash. */
handle = rte_fbk_hash_create(&params);
RETURN_IF_ERROR_FBK(handle == NULL, "fbk hash creation failed");
used_entries = rte_fbk_hash_get_load_factor(handle) * LOCAL_FBK_HASH_ENTRIES_MAX;
RETURN_IF_ERROR_FBK((unsigned)used_entries != 0, \
"load factor right after creation is not zero but it should be");
/* Add keys. */
for (i = 0; i < 5; i++) {
status = rte_fbk_hash_add_key(handle, keys[i], vals[i]);
RETURN_IF_ERROR_FBK(status != 0, "fbk hash add failed");
}
used_entries = rte_fbk_hash_get_load_factor(handle) * LOCAL_FBK_HASH_ENTRIES_MAX;
RETURN_IF_ERROR_FBK((unsigned)used_entries != (unsigned)((((double)5)/LOCAL_FBK_HASH_ENTRIES_MAX)*LOCAL_FBK_HASH_ENTRIES_MAX), \
"load factor now is not as expected");
/* Find value of added keys. */
for (i = 0; i < 5; i++) {
status = rte_fbk_hash_lookup(handle, keys[i]);
RETURN_IF_ERROR_FBK(status != vals[i],
"fbk hash lookup failed");
}
/* Change value of added keys. */
for (i = 0; i < 5; i++) {
status = rte_fbk_hash_add_key(handle, keys[i], vals[4 - i]);
RETURN_IF_ERROR_FBK(status != 0, "fbk hash update failed");
}
/* Find new values. */
for (i = 0; i < 5; i++) {
status = rte_fbk_hash_lookup(handle, keys[i]);
RETURN_IF_ERROR_FBK(status != vals[4-i],
"fbk hash lookup failed");
}
/* Delete keys individually. */
for (i = 0; i < 5; i++) {
status = rte_fbk_hash_delete_key(handle, keys[i]);
RETURN_IF_ERROR_FBK(status != 0, "fbk hash delete failed");
}
used_entries = rte_fbk_hash_get_load_factor(handle) * LOCAL_FBK_HASH_ENTRIES_MAX;
RETURN_IF_ERROR_FBK((unsigned)used_entries != 0, \
"load factor right after deletion is not zero but it should be");
/* Lookup should now fail. */
for (i = 0; i < 5; i++) {
status = rte_fbk_hash_lookup(handle, keys[i]);
RETURN_IF_ERROR_FBK(status == 0,
"fbk hash lookup should have failed");
}
/* Add keys again. */
for (i = 0; i < 5; i++) {
status = rte_fbk_hash_add_key(handle, keys[i], vals[i]);
RETURN_IF_ERROR_FBK(status != 0, "fbk hash add failed");
}
/* Make sure they were added. */
for (i = 0; i < 5; i++) {
status = rte_fbk_hash_lookup(handle, keys[i]);
RETURN_IF_ERROR_FBK(status != vals[i],
"fbk hash lookup failed");
}
/* Clear all entries. */
rte_fbk_hash_clear_all(handle);
/* Lookup should fail. */
for (i = 0; i < 5; i++) {
status = rte_fbk_hash_lookup(handle, keys[i]);
RETURN_IF_ERROR_FBK(status == 0,
"fbk hash lookup should have failed");
}
/* coverage */
/* fill up the hash_table */
for (i = 0; i < RTE_FBK_HASH_ENTRIES_MAX + 1; i++)
rte_fbk_hash_add_key(handle, i, (uint16_t) i);
/* Find non-existent key in a full hashtable */
status = rte_fbk_hash_lookup(handle, RTE_FBK_HASH_ENTRIES_MAX + 1);
RETURN_IF_ERROR_FBK(status != -ENOENT,
"fbk hash lookup succeeded");
/* Delete non-existent key in a full hashtable */
status = rte_fbk_hash_delete_key(handle, RTE_FBK_HASH_ENTRIES_MAX + 1);
RETURN_IF_ERROR_FBK(status != -ENOENT,
"fbk hash delete succeeded");
/* Delete one key from a full hashtable */
status = rte_fbk_hash_delete_key(handle, 1);
RETURN_IF_ERROR_FBK(status != 0,
"fbk hash delete failed");
/* Clear all entries. */
rte_fbk_hash_clear_all(handle);
/* Cleanup. */
rte_fbk_hash_free(handle);
/* Cover the NULL case. */
rte_fbk_hash_free(0);
return 0;
}
/*
* Sequence of operations for find existing fbk hash table
*
* - create table
* - find existing table: hit
* - find non-existing table: miss
*
*/
static int test_fbk_hash_find_existing(void)
{
struct rte_fbk_hash_params params = {
.name = "fbk_hash_find_existing",
.entries = LOCAL_FBK_HASH_ENTRIES_MAX,
.entries_per_bucket = 4,
.socket_id = 0,
};
struct rte_fbk_hash_table *handle = NULL, *result = NULL;
/* Create hash table. */
handle = rte_fbk_hash_create(&params);
RETURN_IF_ERROR_FBK(handle == NULL, "fbk hash creation failed");
/* Try to find existing fbk hash table */
result = rte_fbk_hash_find_existing("fbk_hash_find_existing");
RETURN_IF_ERROR_FBK(result != handle, "could not find existing fbk hash table");
/* Try to find non-existing fbk hash table */
result = rte_fbk_hash_find_existing("fbk_hash_find_non_existing");
RETURN_IF_ERROR_FBK(!(result == NULL), "found fbk table that shouldn't exist");
/* Cleanup. */
rte_fbk_hash_free(handle);
return 0;
}
#define BUCKET_ENTRIES 4
/*
* Do tests for hash creation with bad parameters.
*/
static int test_hash_creation_with_bad_parameters(void)
{
struct rte_hash *handle, *tmp;
struct rte_hash_parameters params;
handle = rte_hash_create(NULL);
if (handle != NULL) {
rte_hash_free(handle);
printf("Impossible creating hash successfully without any parameter\n");
return -1;
}
memcpy(&params, &ut_params, sizeof(params));
params.name = "creation_with_bad_parameters_0";
params.entries = RTE_HASH_ENTRIES_MAX + 1;
handle = rte_hash_create(&params);
if (handle != NULL) {
rte_hash_free(handle);
printf("Impossible creating hash successfully with entries in parameter exceeded\n");
return -1;
}
memcpy(&params, &ut_params, sizeof(params));
params.name = "creation_with_bad_parameters_2";
params.entries = BUCKET_ENTRIES - 1;
handle = rte_hash_create(&params);
if (handle != NULL) {
rte_hash_free(handle);
printf("Impossible creating hash successfully if entries less than bucket_entries in parameter\n");
return -1;
}
memcpy(&params, &ut_params, sizeof(params));
params.name = "creation_with_bad_parameters_3";
params.key_len = 0;
handle = rte_hash_create(&params);
if (handle != NULL) {
rte_hash_free(handle);
printf("Impossible creating hash successfully if key_len in parameter is zero\n");
return -1;
}
memcpy(&params, &ut_params, sizeof(params));
params.name = "creation_with_bad_parameters_4";
params.socket_id = RTE_MAX_NUMA_NODES + 1;
handle = rte_hash_create(&params);
if (handle != NULL) {
rte_hash_free(handle);
printf("Impossible creating hash successfully with invalid socket\n");
return -1;
}
/* test with same name should fail */
memcpy(&params, &ut_params, sizeof(params));
params.name = "same_name";
handle = rte_hash_create(&params);
if (handle == NULL) {
printf("Cannot create first hash table with 'same_name'\n");
return -1;
}
tmp = rte_hash_create(&params);
if (tmp != NULL) {
printf("Creation of hash table with same name should fail\n");
rte_hash_free(handle);
rte_hash_free(tmp);
return -1;
}
rte_hash_free(handle);
printf("# Test successful. No more errors expected\n");
return 0;
}
/*
* Do tests for hash creation with parameters that look incorrect
* but are actually valid.
*/
static int
test_hash_creation_with_good_parameters(void)
{
struct rte_hash *handle;
struct rte_hash_parameters params;
/* create with null hash function - should choose DEFAULT_HASH_FUNC */
memcpy(&params, &ut_params, sizeof(params));
params.name = "name";
params.hash_func = NULL;
handle = rte_hash_create(&params);
if (handle == NULL) {
printf("Creating hash with null hash_func failed\n");
return -1;
}
rte_hash_free(handle);
return 0;
}
#define ITERATIONS 3
/*
* Test to see the average table utilization (entries added/max entries)
* before hitting a random entry that cannot be added
*/
static int test_average_table_utilization(uint32_t ext_table)
{
struct rte_hash *handle;
uint8_t simple_key[MAX_KEYSIZE];
unsigned i, j;
unsigned added_keys, average_keys_added = 0;
int ret;
unsigned int cnt;
printf("\n# Running test to determine average utilization"
"\n before adding elements begins to fail\n");
if (ext_table)
printf("ext table is enabled\n");
else
printf("ext table is disabled\n");
printf("Measuring performance, please wait");
fflush(stdout);
ut_params.entries = 1 << 16;
ut_params.name = "test_average_utilization";
ut_params.hash_func = rte_jhash;
if (ext_table)
ut_params.extra_flag |= RTE_HASH_EXTRA_FLAGS_EXT_TABLE;
else
ut_params.extra_flag &= ~RTE_HASH_EXTRA_FLAGS_EXT_TABLE;
handle = rte_hash_create(&ut_params);
RETURN_IF_ERROR(handle == NULL, "hash creation failed");
for (j = 0; j < ITERATIONS; j++) {
ret = 0;
/* Add random entries until key cannot be added */
for (added_keys = 0; ret >= 0; added_keys++) {
for (i = 0; i < ut_params.key_len; i++)
simple_key[i] = rte_rand() % 255;
ret = rte_hash_add_key(handle, simple_key);
if (ret < 0)
break;
}
if (ret != -ENOSPC) {
printf("Unexpected error when adding keys\n");
rte_hash_free(handle);
return -1;
}
cnt = rte_hash_count(handle);
if (cnt != added_keys) {
printf("rte_hash_count returned wrong value %u, %u,"
"%u\n", j, added_keys, cnt);
rte_hash_free(handle);
return -1;
}
if (ext_table) {
if (cnt != ut_params.entries) {
printf("rte_hash_count returned wrong value "
"%u, %u, %u\n", j, added_keys, cnt);
rte_hash_free(handle);
return -1;
}
}
average_keys_added += added_keys;
/* Reset the table */
rte_hash_reset(handle);
/* Print a dot to show progress on operations */
printf(".");
fflush(stdout);
}
average_keys_added /= ITERATIONS;
printf("\nAverage table utilization = %.2f%% (%u/%u)\n",
((double) average_keys_added / ut_params.entries * 100),
average_keys_added, ut_params.entries);
rte_hash_free(handle);
return 0;
}
#define NUM_ENTRIES 256
static int test_hash_iteration(uint32_t ext_table)
{
struct rte_hash *handle;
unsigned i;
uint8_t keys[NUM_ENTRIES][MAX_KEYSIZE];
const void *next_key;
void *next_data;
void *data[NUM_ENTRIES];
unsigned added_keys;
uint32_t iter = 0;
int ret = 0;
ut_params.entries = NUM_ENTRIES;
ut_params.name = "test_hash_iteration";
ut_params.hash_func = rte_jhash;
ut_params.key_len = 16;
if (ext_table)
ut_params.extra_flag |= RTE_HASH_EXTRA_FLAGS_EXT_TABLE;
else
ut_params.extra_flag &= ~RTE_HASH_EXTRA_FLAGS_EXT_TABLE;
handle = rte_hash_create(&ut_params);
RETURN_IF_ERROR(handle == NULL, "hash creation failed");
/* Add random entries until key cannot be added */
for (added_keys = 0; added_keys < NUM_ENTRIES; added_keys++) {
data[added_keys] = (void *) ((uintptr_t) rte_rand());
for (i = 0; i < ut_params.key_len; i++)
keys[added_keys][i] = rte_rand() % 255;
ret = rte_hash_add_key_data(handle, keys[added_keys], data[added_keys]);
if (ret < 0) {
if (ext_table) {
printf("Insertion failed for ext table\n");
goto err;
}
break;
}
}
/* Iterate through the hash table */
while (rte_hash_iterate(handle, &next_key, &next_data, &iter) >= 0) {
/* Search for the key in the list of keys added */
for (i = 0; i < NUM_ENTRIES; i++) {
if (memcmp(next_key, keys[i], ut_params.key_len) == 0) {
if (next_data != data[i]) {
printf("Data found in the hash table is"
"not the data added with the key\n");
goto err;
}
added_keys--;
break;
}
}
if (i == NUM_ENTRIES) {
printf("Key found in the hash table was not added\n");
goto err;
}
}
/* Check if all keys have been iterated */
if (added_keys != 0) {
printf("There were still %u keys to iterate\n", added_keys);
goto err;
}
rte_hash_free(handle);
return 0;
err:
rte_hash_free(handle);
return -1;
}
static uint8_t key[16] = {0x00, 0x01, 0x02, 0x03,
0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b,
0x0c, 0x0d, 0x0e, 0x0f};
static struct rte_hash_parameters hash_params_ex = {
.name = NULL,
.entries = 64,
.key_len = 0,
.hash_func = NULL,
.hash_func_init_val = 0,
.socket_id = 0,
};
/*
* add/delete key with jhash2
*/
static int
test_hash_add_delete_jhash2(void)
{
int ret = -1;
struct rte_hash *handle;
int32_t pos1, pos2;
hash_params_ex.name = "hash_test_jhash2";
hash_params_ex.key_len = 4;
hash_params_ex.hash_func = (rte_hash_function)rte_jhash_32b;
handle = rte_hash_create(&hash_params_ex);
if (handle == NULL) {
printf("test_hash_add_delete_jhash2 fail to create hash\n");
goto fail_jhash2;
}
pos1 = rte_hash_add_key(handle, (void *)&key[0]);
if (pos1 < 0) {
printf("test_hash_add_delete_jhash2 fail to add hash key\n");
goto fail_jhash2;
}
pos2 = rte_hash_del_key(handle, (void *)&key[0]);
if (pos2 < 0 || pos1 != pos2) {
printf("test_hash_add_delete_jhash2 delete different key from being added\n");
goto fail_jhash2;
}
ret = 0;
fail_jhash2:
if (handle != NULL)
rte_hash_free(handle);
return ret;
}
/*
* add/delete (2) key with jhash2
*/
static int
test_hash_add_delete_2_jhash2(void)
{
int ret = -1;
struct rte_hash *handle;
int32_t pos1, pos2;
hash_params_ex.name = "hash_test_2_jhash2";
hash_params_ex.key_len = 8;
hash_params_ex.hash_func = (rte_hash_function)rte_jhash_32b;
handle = rte_hash_create(&hash_params_ex);
if (handle == NULL)
goto fail_2_jhash2;
pos1 = rte_hash_add_key(handle, (void *)&key[0]);
if (pos1 < 0)
goto fail_2_jhash2;
pos2 = rte_hash_del_key(handle, (void *)&key[0]);
if (pos2 < 0 || pos1 != pos2)
goto fail_2_jhash2;
ret = 0;
fail_2_jhash2:
if (handle != NULL)
rte_hash_free(handle);
return ret;
}
static uint32_t
test_hash_jhash_1word(const void *key, uint32_t length, uint32_t initval)
{
const uint32_t *k = key;
RTE_SET_USED(length);
return rte_jhash_1word(k[0], initval);
}
static uint32_t
test_hash_jhash_2word(const void *key, uint32_t length, uint32_t initval)
{
const uint32_t *k = key;
RTE_SET_USED(length);
return rte_jhash_2words(k[0], k[1], initval);
}
static uint32_t
test_hash_jhash_3word(const void *key, uint32_t length, uint32_t initval)
{
const uint32_t *k = key;
RTE_SET_USED(length);
return rte_jhash_3words(k[0], k[1], k[2], initval);
}
/*
* add/delete key with jhash 1word
*/
static int
test_hash_add_delete_jhash_1word(void)
{
int ret = -1;
struct rte_hash *handle;
int32_t pos1, pos2;
hash_params_ex.name = "hash_test_jhash_1word";
hash_params_ex.key_len = 4;
hash_params_ex.hash_func = test_hash_jhash_1word;
handle = rte_hash_create(&hash_params_ex);
if (handle == NULL)
goto fail_jhash_1word;
pos1 = rte_hash_add_key(handle, (void *)&key[0]);
if (pos1 < 0)
goto fail_jhash_1word;
pos2 = rte_hash_del_key(handle, (void *)&key[0]);
if (pos2 < 0 || pos1 != pos2)
goto fail_jhash_1word;
ret = 0;
fail_jhash_1word:
if (handle != NULL)
rte_hash_free(handle);
return ret;
}
/*
* add/delete key with jhash 2word
*/
static int
test_hash_add_delete_jhash_2word(void)
{
int ret = -1;
struct rte_hash *handle;
int32_t pos1, pos2;
hash_params_ex.name = "hash_test_jhash_2word";
hash_params_ex.key_len = 8;
hash_params_ex.hash_func = test_hash_jhash_2word;
handle = rte_hash_create(&hash_params_ex);
if (handle == NULL)
goto fail_jhash_2word;
pos1 = rte_hash_add_key(handle, (void *)&key[0]);
if (pos1 < 0)
goto fail_jhash_2word;
pos2 = rte_hash_del_key(handle, (void *)&key[0]);
if (pos2 < 0 || pos1 != pos2)
goto fail_jhash_2word;
ret = 0;
fail_jhash_2word:
if (handle != NULL)
rte_hash_free(handle);
return ret;
}
/*
* add/delete key with jhash 3word
*/
static int
test_hash_add_delete_jhash_3word(void)
{
int ret = -1;
struct rte_hash *handle;
int32_t pos1, pos2;
hash_params_ex.name = "hash_test_jhash_3word";
hash_params_ex.key_len = 12;
hash_params_ex.hash_func = test_hash_jhash_3word;
handle = rte_hash_create(&hash_params_ex);
if (handle == NULL)
goto fail_jhash_3word;
pos1 = rte_hash_add_key(handle, (void *)&key[0]);
if (pos1 < 0)
goto fail_jhash_3word;
pos2 = rte_hash_del_key(handle, (void *)&key[0]);
if (pos2 < 0 || pos1 != pos2)
goto fail_jhash_3word;
ret = 0;
fail_jhash_3word:
if (handle != NULL)
rte_hash_free(handle);
return ret;
}
/*
* Do all unit and performance tests.
*/
static int
test_hash(void)
{
if (test_add_delete() < 0)
return -1;
if (test_hash_add_delete_jhash2() < 0)
return -1;
if (test_hash_add_delete_2_jhash2() < 0)
return -1;
if (test_hash_add_delete_jhash_1word() < 0)
return -1;
if (test_hash_add_delete_jhash_2word() < 0)
return -1;
if (test_hash_add_delete_jhash_3word() < 0)
return -1;
if (test_hash_get_key_with_position() < 0)
return -1;
if (test_hash_find_existing() < 0)
return -1;
if (test_add_update_delete() < 0)
return -1;
if (test_add_update_delete_free() < 0)
return -1;
if (test_five_keys() < 0)
return -1;
if (test_full_bucket() < 0)
return -1;
if (test_extendable_bucket() < 0)
return -1;
if (test_fbk_hash_find_existing() < 0)
return -1;
if (fbk_hash_unit_test() < 0)
return -1;
if (test_hash_creation_with_bad_parameters() < 0)
return -1;
if (test_hash_creation_with_good_parameters() < 0)
return -1;
/* ext table disabled */
if (test_average_table_utilization(0) < 0)
return -1;
if (test_hash_iteration(0) < 0)
return -1;
/* ext table enabled */
if (test_average_table_utilization(1) < 0)
return -1;
if (test_hash_iteration(1) < 0)
return -1;
run_hash_func_tests();
if (test_crc32_hash_alg_equiv() < 0)
return -1;
return 0;
}
REGISTER_TEST_COMMAND(hash_autotest, test_hash);
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