ceph/src/isa-l/raid/pq_gen_test.c

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   2   Copyright(c) 2011-2015 Intel Corporation All rights reserved.
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  29
  30 #include<stdio.h>
  31 #include<stdint.h>
  32 #include<string.h>
  33 #include<stdlib.h>
  34 #include<limits.h>
  35 #include "raid.h"
  36 #include "types.h"
  37
  38 #define TEST_SOURCES 16
  39 #define TEST_LEN     1024
  40 #define TEST_MEM ((TEST_SOURCES + 2)*(TEST_LEN))
  41 #ifndef TEST_SEED
  42 # define TEST_SEED 0x1234
  43 #endif
  44
  45 // Generates pseudo-random data
  46
  47 void rand_buffer(unsigned char *buf, long buffer_size)
  48 {
  49         long i;
  50         for (i = 0; i < buffer_size; i++)
  51                 buf[i] = rand();
  52 }
  53
  54 int dump(unsigned char *buf, int len)
  55 {
  56         int i;
  57         for (i = 0; i < len;) {
  58                 printf(" %2x", buf[i++]);
  59                 if (i % 16 == 0)
  60                         printf("\n");
  61         }
  62         printf("\n");
  63         return 0;
  64 }
  65
  66 int main(int argc, char *argv[])
  67 {
  68         int i, j, k, ret, fail = 0;
  69         void *buffs[TEST_SOURCES + 2];  // Pointers to src and dest
  70         char *tmp_buf[TEST_SOURCES + 2];
  71
  72         printf("Test pq_gen_test ");
  73
  74         srand(TEST_SEED);
  75
  76         // Allocate the arrays
  77         for (i = 0; i < TEST_SOURCES + 2; i++) {
  78                 void *buf;
  79                 ret = posix_memalign(&buf, 32, TEST_LEN);
  80                 if (ret) {
  81                         printf("alloc error: Fail");
  82                         return 1;
  83                 }
  84                 buffs[i] = buf;
  85         }
  86
  87         // Test of all zeros
  88         for (i = 0; i < TEST_SOURCES + 2; i++)
  89                 memset(buffs[i], 0, TEST_LEN);
  90
  91         pq_gen(TEST_SOURCES + 2, TEST_LEN, buffs);
  92
  93         for (i = 0; i < TEST_LEN; i++) {
  94                 if (((char *)buffs[TEST_SOURCES])[i] != 0)
  95                         fail++;
  96         }
  97
  98         for (i = 0; i < TEST_LEN; i++) {
  99                 if (((char *)buffs[TEST_SOURCES + 1])[i] != 0)
 100                         fail++;
 101         }
 102
 103         if (fail > 0) {
 104                 printf("fail zero test %d\n", fail);
 105                 return 1;
 106         } else
 107                 putchar('.');
 108
 109         // Test rand1
 110         for (i = 0; i < TEST_SOURCES + 2; i++)
 111                 rand_buffer(buffs[i], TEST_LEN);
 112
 113         ret = pq_gen(TEST_SOURCES + 2, TEST_LEN, buffs);
 114         fail |= pq_check_base(TEST_SOURCES + 2, TEST_LEN, buffs);
 115
 116         if (fail > 0) {
 117                 int t;
 118                 printf(" Fail rand test1 fail=%d, ret=%d\n", fail, ret);
 119                 for (t = 0; t < TEST_SOURCES + 2; t++)
 120                         dump(buffs[t], 15);
 121
 122                 printf(" reference function p,q\n");
 123                 pq_gen_base(TEST_SOURCES + 2, TEST_LEN, buffs);
 124                 for (t = TEST_SOURCES; t < TEST_SOURCES + 2; t++)
 125                         dump(buffs[t], 15);
 126
 127                 return 1;
 128         } else
 129                 putchar('.');
 130
 131         // Test various number of sources
 132         for (j = 4; j <= TEST_SOURCES + 2; j++) {
 133                 for (i = 0; i < j; i++)
 134                         rand_buffer(buffs[i], TEST_LEN);
 135
 136                 pq_gen(j, TEST_LEN, buffs);
 137                 fail |= pq_check_base(j, TEST_LEN, buffs);
 138
 139                 if (fail > 0) {
 140                         printf("fail rand test %d sources\n", j);
 141                         return 1;
 142                 } else
 143                         putchar('.');
 144         }
 145
 146         fflush(0);
 147
 148         // Test various number of sources and len
 149         k = 0;
 150         while (k <= TEST_LEN) {
 151                 for (j = 4; j <= TEST_SOURCES + 2; j++) {
 152                         for (i = 0; i < j; i++)
 153                                 rand_buffer(buffs[i], k);
 154
 155                         ret = pq_gen(j, k, buffs);
 156                         fail |= pq_check_base(j, k, buffs);
 157
 158                         if (fail > 0) {
 159                                 printf("fail rand test %d sources, len=%d, fail="
 160                                        "%d, ret=%d\n", j, k, fail, ret);
 161                                 return 1;
 162                         }
 163                 }
 164                 putchar('.');
 165                 k += 32;
 166         }
 167
 168         // Test at the end of buffer
 169         k = 0;
 170         while (k <= TEST_LEN) {
 171                 for (j = 0; j < (TEST_SOURCES + 2); j++) {
 172                         rand_buffer(buffs[j], TEST_LEN - k);
 173                         tmp_buf[j] = (char *)buffs[j] + k;
 174                 }
 175
 176                 ret = pq_gen(TEST_SOURCES + 2, TEST_LEN - k, (void *)tmp_buf);
 177                 fail |= pq_check_base(TEST_SOURCES + 2, TEST_LEN - k, (void *)tmp_buf);
 178
 179                 if (fail > 0) {
 180                         printf("fail end test - offset: %d, len: %d, fail: %d, "
 181                                "ret: %d\n", k, TEST_LEN - k, fail, ret);
 182                         return 1;
 183                 }
 184
 185                 putchar('.');
 186                 fflush(0);
 187                 k += 32;
 188         }
 189
 190         if (!fail)
 191                 printf(" done: Pass\n");
 192
 193         return fail;
 194 }