1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2017-2020 Intel Corporation
3 */
4
5 #include "test.h"
6
7 #include <rte_hexdump.h>
8 #include <rte_malloc.h>
9 #include <rte_memcpy.h>
10 #include <rte_net_crc.h>
11
12 #define CRC_VEC_LEN 32
13 #define CRC32_VEC_LEN1 1512
14 #define CRC32_VEC_LEN2 348
15 #define CRC16_VEC_LEN1 12
16 #define CRC16_VEC_LEN2 2
17
18 /* CRC test vector */
19 static const uint8_t crc_vec[CRC_VEC_LEN] = {
20 '0', '1', '2', '3', '4', '5', '6', '7',
21 '8', '9', 'a', 'b', 'c', 'd', 'e', 'f',
22 'g', 'h', 'i', 'j', 'A', 'B', 'C', 'D',
23 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L',
24 };
25
26 /* 32-bit CRC test vector */
27 static const uint8_t crc32_vec1[12] = {
28 0xBE, 0xD7, 0x23, 0x47, 0x6B, 0x8F,
29 0xB3, 0x14, 0x5E, 0xFB, 0x35, 0x59,
30 };
31
32 /* 16-bit CRC test vector 1 */
33 static const uint8_t crc16_vec1[CRC16_VEC_LEN1] = {
34 0x0D, 0x01, 0x01, 0x23, 0x45, 0x67,
35 0x89, 0x01, 0x23, 0x45, 0x00, 0x01,
36 };
37
38 /* 16-bit CRC test vector 2 */
39 static const uint8_t crc16_vec2[CRC16_VEC_LEN2] = {
40 0x03, 0x3f,
41 };
42 /** CRC results */
43 static const uint32_t crc32_vec_res = 0xb491aab4;
44 static const uint32_t crc32_vec1_res = 0xac54d294;
45 static const uint32_t crc32_vec2_res = 0xefaae02f;
46 static const uint32_t crc16_vec_res = 0x6bec;
47 static const uint16_t crc16_vec1_res = 0x8cdd;
48 static const uint16_t crc16_vec2_res = 0xec5b;
49
50 static int
crc_calc(const uint8_t * vec,uint32_t vec_len,enum rte_net_crc_type type)51 crc_calc(const uint8_t *vec,
52 uint32_t vec_len,
53 enum rte_net_crc_type type)
54 {
55 /* compute CRC */
56 uint32_t ret = rte_net_crc_calc(vec, vec_len, type);
57
58 /* dump data on console */
59 debug_hexdump(stdout, NULL, vec, vec_len);
60
61 return ret;
62 }
63
64 static int
test_crc_calc(void)65 test_crc_calc(void)
66 {
67 uint32_t i;
68 enum rte_net_crc_type type;
69 uint8_t *test_data;
70 uint32_t result;
71 int error;
72
73 /* 32-bit ethernet CRC: Test 1 */
74 type = RTE_NET_CRC32_ETH;
75
76 result = crc_calc(crc_vec, CRC_VEC_LEN, type);
77 if (result != crc32_vec_res)
78 return -1;
79
80 /* 32-bit ethernet CRC: Test 2 */
81 test_data = rte_zmalloc(NULL, CRC32_VEC_LEN1, 0);
82
83 for (i = 0; i < CRC32_VEC_LEN1; i += 12)
84 rte_memcpy(&test_data[i], crc32_vec1, 12);
85
86 result = crc_calc(test_data, CRC32_VEC_LEN1, type);
87 if (result != crc32_vec1_res) {
88 error = -2;
89 goto fail;
90 }
91
92 /* 32-bit ethernet CRC: Test 3 */
93 for (i = 0; i < CRC32_VEC_LEN2; i += 12)
94 rte_memcpy(&test_data[i], crc32_vec1, 12);
95
96 result = crc_calc(test_data, CRC32_VEC_LEN2, type);
97 if (result != crc32_vec2_res) {
98 error = -3;
99 goto fail;
100 }
101
102 /* 16-bit CCITT CRC: Test 4 */
103 type = RTE_NET_CRC16_CCITT;
104 result = crc_calc(crc_vec, CRC_VEC_LEN, type);
105 if (result != crc16_vec_res) {
106 error = -4;
107 goto fail;
108 }
109 /* 16-bit CCITT CRC: Test 5 */
110 result = crc_calc(crc16_vec1, CRC16_VEC_LEN1, type);
111 if (result != crc16_vec1_res) {
112 error = -5;
113 goto fail;
114 }
115 /* 16-bit CCITT CRC: Test 6 */
116 result = crc_calc(crc16_vec2, CRC16_VEC_LEN2, type);
117 if (result != crc16_vec2_res) {
118 error = -6;
119 goto fail;
120 }
121
122 rte_free(test_data);
123 return 0;
124
125 fail:
126 rte_free(test_data);
127 return error;
128 }
129
130 static int
test_crc(void)131 test_crc(void)
132 {
133 int ret;
134 /* set CRC scalar mode */
135 rte_net_crc_set_alg(RTE_NET_CRC_SCALAR);
136
137 ret = test_crc_calc();
138 if (ret < 0) {
139 printf("test_crc (scalar): failed (%d)\n", ret);
140 return ret;
141 }
142 /* set CRC sse4.2 mode */
143 rte_net_crc_set_alg(RTE_NET_CRC_SSE42);
144
145 ret = test_crc_calc();
146 if (ret < 0) {
147 printf("test_crc (x86_64_SSE4.2): failed (%d)\n", ret);
148 return ret;
149 }
150
151 /* set CRC avx512 mode */
152 rte_net_crc_set_alg(RTE_NET_CRC_AVX512);
153
154 ret = test_crc_calc();
155 if (ret < 0) {
156 printf("test crc (x86_64 AVX512): failed (%d)\n", ret);
157 return ret;
158 }
159
160 /* set CRC neon mode */
161 rte_net_crc_set_alg(RTE_NET_CRC_NEON);
162
163 ret = test_crc_calc();
164 if (ret < 0) {
165 printf("test crc (arm64 neon pmull): failed (%d)\n", ret);
166 return ret;
167 }
168
169 return 0;
170 }
171
172 REGISTER_TEST_COMMAND(crc_autotest, test_crc);
173