ceph/src/isa-l/erasure_code/gf_vect_mul_test.c

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  29
  30 #include <stdio.h>
  31 #include <stdlib.h>
  32 #include <string.h>             // for memset
  33 #include "erasure_code.h"
  34
  35 #define TEST_SIZE 8192
  36 #define TEST_MEM  TEST_SIZE
  37 #define TEST_LOOPS 100000
  38 #define TEST_TYPE_STR ""
  39
  40 typedef unsigned char u8;
  41
  42 int main(int argc, char *argv[])
  43 {
  44         int i;
  45         u8 *buff1, *buff2, *buff3, gf_const_tbl[64], a = 2;
  46         int align, size;
  47         unsigned char *efence_buff1;
  48         unsigned char *efence_buff2;
  49         unsigned char *efence_buff3;
  50
  51         printf("gf_vect_mul_test:\n");
  52
  53         gf_vect_mul_init(a, gf_const_tbl);
  54
  55         buff1 = (u8 *) malloc(TEST_SIZE);
  56         buff2 = (u8 *) malloc(TEST_SIZE);
  57         buff3 = (u8 *) malloc(TEST_SIZE);
  58
  59         if (NULL == buff1 || NULL == buff2 || NULL == buff3) {
  60                 printf("buffer alloc error\n");
  61                 return -1;
  62         }
  63         // Fill with rand data
  64         for (i = 0; i < TEST_SIZE; i++)
  65                 buff1[i] = rand();
  66
  67         gf_vect_mul(TEST_SIZE, gf_const_tbl, buff1, buff2);
  68
  69         for (i = 0; i < TEST_SIZE; i++)
  70                 if (gf_mul(a, buff1[i]) != buff2[i]) {
  71                         printf("fail at %d, 0x%x x 2 = 0x%x (0x%x)\n", i, buff1[i], buff2[i],
  72                                gf_mul(2, buff1[i]));
  73                         return 1;
  74                 }
  75
  76         gf_vect_mul_base(TEST_SIZE, gf_const_tbl, buff1, buff3);
  77
  78         // Check reference function
  79         for (i = 0; i < TEST_SIZE; i++)
  80                 if (buff2[i] != buff3[i]) {
  81                         printf("fail at %d, 0x%x x 0x%d = 0x%x (0x%x)\n",
  82                                i, a, buff1[i], buff2[i], gf_mul(a, buff1[i]));
  83                         return 1;
  84                 }
  85
  86         for (i = 0; i < TEST_SIZE; i++)
  87                 buff1[i] = rand();
  88
  89         // Check each possible constant
  90         printf("Random tests ");
  91         for (a = 0; a != 255; a++) {
  92                 gf_vect_mul_init(a, gf_const_tbl);
  93                 gf_vect_mul(TEST_SIZE, gf_const_tbl, buff1, buff2);
  94
  95                 for (i = 0; i < TEST_SIZE; i++) {
  96                         if (gf_mul(a, buff1[i]) != buff2[i]) {
  97                                 printf("fail at %d, 0x%x x %d = 0x%x (0x%x)\n",
  98                                        i, a, buff1[i], buff2[i], gf_mul(2, buff1[i]));
  99                                 return 1;
 100                         }
 101                 }
 102                 putchar('.');
 103         }
 104
 105         // Run tests at end of buffer for Electric Fence
 106         align = 32;
 107         a = 2;
 108
 109         gf_vect_mul_init(a, gf_const_tbl);
 110         for (size = 0; size < TEST_SIZE; size += align) {
 111                 // Line up TEST_SIZE from end
 112                 efence_buff1 = buff1 + size;
 113                 efence_buff2 = buff2 + size;
 114                 efence_buff3 = buff3 + size;
 115
 116                 gf_vect_mul(TEST_SIZE - size, gf_const_tbl, efence_buff1, efence_buff2);
 117
 118                 for (i = 0; i < TEST_SIZE - size; i++)
 119                         if (gf_mul(a, efence_buff1[i]) != efence_buff2[i]) {
 120                                 printf("fail at %d, 0x%x x 2 = 0x%x (0x%x)\n",
 121                                        i, efence_buff1[i], efence_buff2[i],
 122                                        gf_mul(2, efence_buff1[i]));
 123                                 return 1;
 124                         }
 125
 126                 gf_vect_mul_base(TEST_SIZE - size, gf_const_tbl, efence_buff1, efence_buff3);
 127
 128                 // Check reference function
 129                 for (i = 0; i < TEST_SIZE - size; i++)
 130                         if (efence_buff2[i] != efence_buff3[i]) {
 131                                 printf("fail at %d, 0x%x x 0x%d = 0x%x (0x%x)\n",
 132                                        i, a, efence_buff2[i], efence_buff3[i],
 133                                        gf_mul(2, efence_buff1[i]));
 134                                 return 1;
 135                         }
 136
 137                 putchar('.');
 138         }
 139
 140         printf(" done: Pass\n");
 141         return 0;
 142 }