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1 | /********************************************************************** |
2 | Copyright(c) 2011-2015 Intel Corporation All rights reserved. | |
3 | ||
4 | Redistribution and use in source and binary forms, with or without | |
5 | modification, are permitted provided that the following conditions | |
6 | are met: | |
7 | * Redistributions of source code must retain the above copyright | |
8 | notice, this list of conditions and the following disclaimer. | |
9 | * Redistributions in binary form must reproduce the above copyright | |
10 | notice, this list of conditions and the following disclaimer in | |
11 | the documentation and/or other materials provided with the | |
12 | distribution. | |
13 | * Neither the name of Intel Corporation nor the names of its | |
14 | contributors may be used to endorse or promote products derived | |
15 | from this software without specific prior written permission. | |
16 | ||
17 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
18 | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
19 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
20 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
21 | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
22 | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
23 | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
24 | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
25 | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
26 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
27 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
28 | **********************************************************************/ | |
29 | ||
30 | #include <stdio.h> | |
31 | #include <string.h> | |
32 | #include <stdint.h> | |
33 | #include <stdlib.h> | |
34 | #include "crc.h" | |
35 | #include "types.h" | |
f91f0fd5 | 36 | #include "crc_ref.h" |
7c673cae FG |
37 | |
38 | #ifndef TEST_SEED | |
39 | # define TEST_SEED 0x1234 | |
40 | #endif | |
41 | ||
f91f0fd5 | 42 | #define MAX_BUF 4096 |
7c673cae FG |
43 | #define TEST_SIZE 20 |
44 | ||
45 | typedef uint32_t u32; | |
46 | typedef uint16_t u16; | |
47 | typedef uint8_t u8; | |
48 | ||
f91f0fd5 TL |
49 | uint16_t crc16_t10dif_ref(uint16_t seed, uint8_t * buf, uint64_t len); |
50 | ||
7c673cae FG |
51 | void rand_buffer(unsigned char *buf, long buffer_size) |
52 | { | |
53 | long i; | |
54 | for (i = 0; i < buffer_size; i++) | |
55 | buf[i] = rand(); | |
56 | } | |
57 | ||
58 | int main(int argc, char *argv[]) | |
59 | { | |
60 | int fail = 0; | |
61 | u32 r = 0; | |
62 | int verbose = argc - 1; | |
63 | int i, s; | |
64 | void *buf_raw; | |
65 | unsigned char *buf; | |
66 | ||
67 | printf("Test crc16_t10dif_test "); | |
f91f0fd5 | 68 | if (posix_memalign(&buf_raw, 32, MAX_BUF * TEST_SIZE)) { |
7c673cae FG |
69 | printf("alloc error: Fail"); |
70 | return -1; | |
71 | } | |
72 | buf = (unsigned char *)buf_raw; | |
73 | ||
74 | srand(TEST_SEED); | |
75 | ||
76 | // Test of all zeros | |
77 | memset(buf, 0, MAX_BUF * 10); | |
f91f0fd5 TL |
78 | u16 crc_ref = crc16_t10dif_ref(TEST_SEED, buf, MAX_BUF); |
79 | u16 crc_base = crc16_t10dif_base(TEST_SEED, buf, MAX_BUF); | |
7c673cae | 80 | u16 crc = crc16_t10dif(TEST_SEED, buf, MAX_BUF); |
f91f0fd5 | 81 | if ((crc_base != crc_ref) || (crc != crc_ref)) { |
7c673cae FG |
82 | fail++; |
83 | printf("\n opt ref\n"); | |
84 | printf(" ------ ------\n"); | |
f91f0fd5 | 85 | printf("crc zero = 0x%4x 0x%4x 0x%4x \n", crc_ref, crc_base, crc); |
7c673cae FG |
86 | } else |
87 | printf("."); | |
88 | ||
89 | // Another simple test pattern | |
90 | memset(buf, 0x8a, MAX_BUF); | |
f91f0fd5 TL |
91 | crc_ref = crc16_t10dif_ref(TEST_SEED, buf, MAX_BUF); |
92 | crc_base = crc16_t10dif_base(TEST_SEED, buf, MAX_BUF); | |
7c673cae | 93 | crc = crc16_t10dif(TEST_SEED, buf, MAX_BUF); |
f91f0fd5 | 94 | if ((crc_base != crc_ref) || (crc != crc_ref)) { |
7c673cae | 95 | fail++; |
f91f0fd5 | 96 | printf("crc all 8a = 0x%4x 0x%4x 0x%4x\n", crc_ref, crc_base, crc); |
7c673cae FG |
97 | } else |
98 | printf("."); | |
99 | ||
100 | // Do a few random tests | |
101 | ||
102 | rand_buffer(buf, MAX_BUF * TEST_SIZE); | |
103 | ||
104 | for (i = 0; i < TEST_SIZE; i++) { | |
f91f0fd5 TL |
105 | crc_ref = crc16_t10dif_ref(TEST_SEED, buf, MAX_BUF); |
106 | crc_base = crc16_t10dif_base(TEST_SEED, buf, MAX_BUF); | |
7c673cae | 107 | crc = crc16_t10dif(TEST_SEED, buf, MAX_BUF); |
f91f0fd5 | 108 | if ((crc_base != crc_ref) || (crc != crc_ref)) |
7c673cae FG |
109 | fail++; |
110 | if (verbose) | |
f91f0fd5 TL |
111 | printf("crc rand%3d = 0x%4x 0x%4x 0x%4x\n", i, crc_ref, crc_base, crc); |
112 | else if (i % (TEST_SIZE / 8) == 0) | |
7c673cae FG |
113 | printf("."); |
114 | buf += MAX_BUF; | |
115 | } | |
116 | ||
117 | // Do a few random sizes | |
118 | buf = (unsigned char *)buf_raw; //reset buf | |
119 | r = rand(); | |
120 | ||
121 | for (i = MAX_BUF; i >= 0; i--) { | |
f91f0fd5 TL |
122 | crc_ref = crc16_t10dif_ref(r, buf, i); |
123 | crc_base = crc16_t10dif_base(r, buf, i); | |
7c673cae | 124 | crc = crc16_t10dif(r, buf, i); |
f91f0fd5 | 125 | if ((crc_base != crc_ref) || (crc != crc_ref)) { |
7c673cae | 126 | fail++; |
f91f0fd5 TL |
127 | printf("fail random size%i 0x%8x 0x%8x 0x%8x\n", i, crc_ref, crc_base, |
128 | crc); | |
129 | } else if (i % (MAX_BUF / 8) == 0) | |
7c673cae FG |
130 | printf("."); |
131 | } | |
132 | ||
133 | // Try different seeds | |
134 | for (s = 0; s < 20; s++) { | |
135 | buf = (unsigned char *)buf_raw; //reset buf | |
136 | ||
137 | r = rand(); // just to get a new seed | |
138 | rand_buffer(buf, MAX_BUF * TEST_SIZE); // new pseudo-rand data | |
139 | ||
140 | if (verbose) | |
141 | printf("seed = 0x%x\n", r); | |
142 | ||
143 | for (i = 0; i < TEST_SIZE; i++) { | |
f91f0fd5 TL |
144 | crc_ref = crc16_t10dif_ref(r, buf, MAX_BUF); |
145 | crc_base = crc16_t10dif_base(r, buf, MAX_BUF); | |
7c673cae | 146 | crc = crc16_t10dif(r, buf, MAX_BUF); |
f91f0fd5 | 147 | if ((crc_base != crc_ref) || (crc != crc_ref)) |
7c673cae FG |
148 | fail++; |
149 | if (verbose) | |
f91f0fd5 TL |
150 | printf("crc rand%3d = 0x%4x 0x%4x 0x%4x\n", i, crc_ref, |
151 | crc_base, crc); | |
152 | else if (i % (TEST_SIZE * 20 / 8) == 0) | |
7c673cae FG |
153 | printf("."); |
154 | buf += MAX_BUF; | |
155 | } | |
156 | } | |
157 | ||
158 | // Run tests at end of buffer | |
159 | buf = (unsigned char *)buf_raw; //reset buf | |
160 | buf = buf + ((MAX_BUF - 1) * TEST_SIZE); //Line up TEST_SIZE from end | |
161 | for (i = 0; i < TEST_SIZE; i++) { | |
f91f0fd5 TL |
162 | crc_ref = crc16_t10dif_ref(TEST_SEED, buf + i, TEST_SIZE - i); |
163 | crc_base = crc16_t10dif_base(TEST_SEED, buf + i, TEST_SIZE - i); | |
7c673cae | 164 | crc = crc16_t10dif(TEST_SEED, buf + i, TEST_SIZE - i); |
f91f0fd5 | 165 | if ((crc_base != crc_ref) || (crc != crc_ref)) |
7c673cae FG |
166 | fail++; |
167 | if (verbose) | |
f91f0fd5 TL |
168 | printf("crc eob rand%3d = 0x%4x 0x%4x 0x%4x\n", i, crc_ref, crc_base, |
169 | crc); | |
7c673cae FG |
170 | else |
171 | printf("."); | |
172 | } | |
173 | ||
174 | printf("Test done: %s\n", fail ? "Fail" : "Pass"); | |
175 | if (fail) | |
176 | printf("\nFailed %d tests\n", fail); | |
177 | ||
178 | return fail; | |
179 | } |