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/**********************************************************************
Copyright(c) 2011-2015 Intel Corporation All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
* Neither the name of Intel Corporation nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**********************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h> // for memset, memcmp
#include "erasure_code.h"
#include "test.h"
#ifndef FUNCTION_UNDER_TEST
#define FUNCTION_UNDER_TEST gf_vect_dot_prod
#endif
#ifndef TEST_MIN_SIZE
#define TEST_MIN_SIZE 32
#endif
#define str(s) #s
#define xstr(s) str(s)
#define TEST_LEN 8192
#define TEST_SIZE (TEST_LEN / 2)
#ifndef TEST_SOURCES
#define TEST_SOURCES 16
#endif
#ifndef RANDOMS
#define RANDOMS 20
#endif
#define MMAX TEST_SOURCES
#define KMAX TEST_SOURCES
#ifdef EC_ALIGNED_ADDR
// Define power of 2 range to check ptr, len alignment
#define PTR_ALIGN_CHK_B 0
#define LEN_ALIGN_CHK_B 0 // 0 for aligned only
#else
// Define power of 2 range to check ptr, len alignment
#define PTR_ALIGN_CHK_B 32
#define LEN_ALIGN_CHK_B 32 // 0 for aligned only
#endif
typedef unsigned char u8;
void
dump(unsigned char *buf, int len)
{
int i;
for (i = 0; i < len;) {
printf(" %2x", 0xff & buf[i++]);
if (i % 32 == 0)
printf("\n");
}
printf("\n");
}
void
dump_matrix(unsigned char **s, int k, int m)
{
int i, j;
for (i = 0; i < k; i++) {
for (j = 0; j < m; j++) {
printf(" %2x", s[i][j]);
}
printf("\n");
}
printf("\n");
}
void
dump_u8xu8(unsigned char *s, int k, int m)
{
int i, j;
for (i = 0; i < k; i++) {
for (j = 0; j < m; j++) {
printf(" %2x", 0xff & s[j + (i * m)]);
}
printf("\n");
}
printf("\n");
}
int
main(int argc, char *argv[])
{
int i, j, rtest, srcs, m, k, nerrs, r, err;
void *buf;
u8 g[TEST_SOURCES], g_tbls[TEST_SOURCES * 32], src_in_err[TEST_SOURCES];
u8 *dest, *dest_ref, *temp_buff, *buffs[TEST_SOURCES];
u8 a[MMAX * KMAX], b[MMAX * KMAX], d[MMAX * KMAX];
u8 src_err_list[TEST_SOURCES], *recov[TEST_SOURCES];
int align, size;
unsigned char *efence_buffs[TEST_SOURCES];
unsigned int offset;
u8 *ubuffs[TEST_SOURCES];
u8 *udest_ptr;
printf(xstr(FUNCTION_UNDER_TEST) ": %dx%d ", TEST_SOURCES, TEST_LEN);
// Allocate the arrays
for (i = 0; i < TEST_SOURCES; i++) {
if (posix_memalign(&buf, 64, TEST_LEN)) {
printf("alloc error: Fail");
return -1;
}
buffs[i] = buf;
}
if (posix_memalign(&buf, 64, TEST_LEN)) {
printf("alloc error: Fail");
return -1;
}
dest = buf;
if (posix_memalign(&buf, 64, TEST_LEN)) {
printf("alloc error: Fail");
return -1;
}
dest_ref = buf;
if (posix_memalign(&buf, 64, TEST_LEN)) {
printf("alloc error: Fail");
return -1;
}
temp_buff = buf;
// Test of all zeros
for (i = 0; i < TEST_SOURCES; i++)
memset(buffs[i], 0, TEST_LEN);
memset(dest, 0, TEST_LEN);
memset(temp_buff, 0, TEST_LEN);
memset(dest_ref, 0, TEST_LEN);
memset(g, 0, TEST_SOURCES);
for (i = 0; i < TEST_SOURCES; i++)
gf_vect_mul_init(g[i], &g_tbls[i * 32]);
gf_vect_dot_prod_base(TEST_LEN, TEST_SOURCES, &g_tbls[0], buffs, dest_ref);
FUNCTION_UNDER_TEST(TEST_LEN, TEST_SOURCES, g_tbls, buffs, dest);
if (0 != memcmp(dest_ref, dest, TEST_LEN)) {
printf("Fail zero " xstr(FUNCTION_UNDER_TEST) " \n");
dump_matrix(buffs, 5, TEST_SOURCES);
printf("dprod_base:");
dump(dest_ref, 25);
printf("dprod:");
dump(dest, 25);
return -1;
}
#ifdef TEST_VERBOSE
else
putchar('.');
#endif
// Rand data test
for (rtest = 0; rtest < RANDOMS; rtest++) {
for (i = 0; i < TEST_SOURCES; i++)
for (j = 0; j < TEST_LEN; j++)
buffs[i][j] = rand();
for (i = 0; i < TEST_SOURCES; i++)
g[i] = rand();
for (i = 0; i < TEST_SOURCES; i++)
gf_vect_mul_init(g[i], &g_tbls[i * 32]);
gf_vect_dot_prod_base(TEST_LEN, TEST_SOURCES, &g_tbls[0], buffs, dest_ref);
FUNCTION_UNDER_TEST(TEST_LEN, TEST_SOURCES, g_tbls, buffs, dest);
if (0 != memcmp(dest_ref, dest, TEST_LEN)) {
printf("Fail rand " xstr(FUNCTION_UNDER_TEST) " 1\n");
dump_matrix(buffs, 5, TEST_SOURCES);
printf("dprod_base:");
dump(dest_ref, 25);
printf("dprod:");
dump(dest, 25);
return -1;
}
#ifdef TEST_VERBOSE
putchar('.');
#endif
}
// Rand data test with varied parameters
for (rtest = 0; rtest < RANDOMS; rtest++) {
for (srcs = TEST_SOURCES; srcs > 0; srcs--) {
for (i = 0; i < srcs; i++)
for (j = 0; j < TEST_LEN; j++)
buffs[i][j] = rand();
for (i = 0; i < srcs; i++)
g[i] = rand();
for (i = 0; i < srcs; i++)
gf_vect_mul_init(g[i], &g_tbls[i * 32]);
gf_vect_dot_prod_base(TEST_LEN, srcs, &g_tbls[0], buffs, dest_ref);
FUNCTION_UNDER_TEST(TEST_LEN, srcs, g_tbls, buffs, dest);
if (0 != memcmp(dest_ref, dest, TEST_LEN)) {
printf("Fail rand " xstr(FUNCTION_UNDER_TEST) " test 2\n");
dump_matrix(buffs, 5, srcs);
printf("dprod_base:");
dump(dest_ref, 5);
printf("dprod:");
dump(dest, 5);
return -1;
}
#ifdef TEST_VERBOSE
putchar('.');
#endif
}
}
// Test erasure code using gf_vect_dot_prod
// Pick a first test
m = 9;
k = 5;
if (m > MMAX || k > KMAX)
return -1;
gf_gen_rs_matrix(a, m, k);
// Make random data
for (i = 0; i < k; i++)
for (j = 0; j < TEST_LEN; j++)
buffs[i][j] = rand();
// Make parity vects
for (i = k; i < m; i++) {
for (j = 0; j < k; j++)
gf_vect_mul_init(a[k * i + j], &g_tbls[j * 32]);
#ifndef USEREF
FUNCTION_UNDER_TEST(TEST_LEN, k, g_tbls, buffs, buffs[i]);
#else
gf_vect_dot_prod_base(TEST_LEN, k, &g_tbls[0], buffs, buffs[i]);
#endif
}
// Random buffers in erasure
memset(src_in_err, 0, TEST_SOURCES);
for (i = 0, nerrs = 0; i < k && nerrs < m - k; i++) {
err = 1 & rand();
src_in_err[i] = err;
if (err)
src_err_list[nerrs++] = i;
}
// construct b by removing error rows
for (i = 0, r = 0; i < k; i++, r++) {
while (src_in_err[r]) {
r++;
continue;
}
for (j = 0; j < k; j++)
b[k * i + j] = a[k * r + j];
}
if (gf_invert_matrix((u8 *) b, (u8 *) d, k) < 0)
printf("BAD MATRIX\n");
for (i = 0, r = 0; i < k; i++, r++) {
while (src_in_err[r]) {
r++;
continue;
}
recov[i] = buffs[r];
}
// Recover data
for (i = 0; i < nerrs; i++) {
for (j = 0; j < k; j++)
gf_vect_mul_init(d[k * src_err_list[i] + j], &g_tbls[j * 32]);
#ifndef USEREF
FUNCTION_UNDER_TEST(TEST_LEN, k, g_tbls, recov, temp_buff);
#else
gf_vect_dot_prod_base(TEST_LEN, k, &g_tbls[0], recov, temp_buff);
#endif
if (0 != memcmp(temp_buff, buffs[src_err_list[i]], TEST_LEN)) {
printf("Fail error recovery (%d, %d, %d)\n", m, k, nerrs);
printf("recov %d:", src_err_list[i]);
dump(temp_buff, 25);
printf("orig :");
dump(buffs[src_err_list[i]], 25);
return -1;
}
}
// Do more random tests
for (rtest = 0; rtest < RANDOMS; rtest++) {
while ((m = (rand() % MMAX)) < 2)
;
while ((k = (rand() % KMAX)) >= m || k < 1)
;
if (m > MMAX || k > KMAX)
continue;
gf_gen_rs_matrix(a, m, k);
// Make random data
for (i = 0; i < k; i++)
for (j = 0; j < TEST_LEN; j++)
buffs[i][j] = rand();
// Make parity vects
for (i = k; i < m; i++) {
for (j = 0; j < k; j++)
gf_vect_mul_init(a[k * i + j], &g_tbls[j * 32]);
#ifndef USEREF
FUNCTION_UNDER_TEST(TEST_LEN, k, g_tbls, buffs, buffs[i]);
#else
gf_vect_dot_prod_base(TEST_LEN, k, &g_tbls[0], buffs, buffs[i]);
#endif
}
// Random errors
memset(src_in_err, 0, TEST_SOURCES);
for (i = 0, nerrs = 0; i < k && nerrs < m - k; i++) {
err = 1 & rand();
src_in_err[i] = err;
if (err)
src_err_list[nerrs++] = i;
}
if (nerrs == 0) { // should have at least one error
while ((err = (rand() % KMAX)) >= k)
;
src_err_list[nerrs++] = err;
src_in_err[err] = 1;
}
// construct b by removing error rows
for (i = 0, r = 0; i < k; i++, r++) {
while (src_in_err[r]) {
r++;
continue;
}
for (j = 0; j < k; j++)
b[k * i + j] = a[k * r + j];
}
if (gf_invert_matrix((u8 *) b, (u8 *) d, k) < 0)
printf("BAD MATRIX\n");
for (i = 0, r = 0; i < k; i++, r++) {
while (src_in_err[r]) {
r++;
continue;
}
recov[i] = buffs[r];
}
// Recover data
for (i = 0; i < nerrs; i++) {
for (j = 0; j < k; j++)
gf_vect_mul_init(d[k * src_err_list[i] + j], &g_tbls[j * 32]);
#ifndef USEREF
FUNCTION_UNDER_TEST(TEST_LEN, k, g_tbls, recov, temp_buff);
#else
gf_vect_dot_prod_base(TEST_LEN, k, &g_tbls[0], recov, temp_buff);
#endif
if (0 != memcmp(temp_buff, buffs[src_err_list[i]], TEST_LEN)) {
printf("Fail error recovery (%d, %d, %d) - ", m, k, nerrs);
printf(" - erase list = ");
for (i = 0; i < nerrs; i++)
printf(" %d", src_err_list[i]);
printf("\na:\n");
dump_u8xu8((u8 *) a, m, k);
printf("inv b:\n");
dump_u8xu8((u8 *) d, k, k);
printf("orig data:\n");
dump_matrix(buffs, m, 25);
printf("orig :");
dump(buffs[src_err_list[i]], 25);
printf("recov %d:", src_err_list[i]);
dump(temp_buff, 25);
return -1;
}
}
#ifdef TEST_VERBOSE
putchar('.');
#endif
}
// Run tests at end of buffer for Electric Fence
align = (LEN_ALIGN_CHK_B != 0) ? 1 : 16;
for (size = TEST_MIN_SIZE; size <= TEST_SIZE; size += align) {
for (i = 0; i < TEST_SOURCES; i++)
for (j = 0; j < TEST_LEN; j++)
buffs[i][j] = rand();
for (i = 0; i < TEST_SOURCES; i++) // Line up TEST_SIZE from end
efence_buffs[i] = buffs[i] + TEST_LEN - size;
for (i = 0; i < TEST_SOURCES; i++)
g[i] = rand();
for (i = 0; i < TEST_SOURCES; i++)
gf_vect_mul_init(g[i], &g_tbls[i * 32]);
gf_vect_dot_prod_base(size, TEST_SOURCES, &g_tbls[0], efence_buffs, dest_ref);
FUNCTION_UNDER_TEST(size, TEST_SOURCES, g_tbls, efence_buffs, dest);
if (0 != memcmp(dest_ref, dest, size)) {
printf("Fail rand " xstr(FUNCTION_UNDER_TEST) " test 3\n");
dump_matrix(efence_buffs, 5, TEST_SOURCES);
printf("dprod_base:");
dump(dest_ref, align);
printf("dprod:");
dump(dest, align);
return -1;
}
#ifdef TEST_VERBOSE
putchar('.');
#endif
}
// Test rand ptr alignment if available
for (rtest = 0; rtest < RANDOMS; rtest++) {
size = (TEST_LEN - PTR_ALIGN_CHK_B) & ~(TEST_MIN_SIZE - 1);
srcs = rand() % TEST_SOURCES;
if (srcs == 0)
continue;
offset = (PTR_ALIGN_CHK_B != 0) ? 1 : PTR_ALIGN_CHK_B;
// Add random offsets
for (i = 0; i < srcs; i++)
ubuffs[i] = buffs[i] + (rand() & (PTR_ALIGN_CHK_B - offset));
udest_ptr = dest + (rand() & (PTR_ALIGN_CHK_B - offset));
memset(dest, 0, TEST_LEN); // zero pad to check write-over
for (i = 0; i < srcs; i++)
for (j = 0; j < size; j++)
ubuffs[i][j] = rand();
for (i = 0; i < srcs; i++)
g[i] = rand();
for (i = 0; i < srcs; i++)
gf_vect_mul_init(g[i], &g_tbls[i * 32]);
gf_vect_dot_prod_base(size, srcs, &g_tbls[0], ubuffs, dest_ref);
FUNCTION_UNDER_TEST(size, srcs, g_tbls, ubuffs, udest_ptr);
if (memcmp(dest_ref, udest_ptr, size)) {
printf("Fail rand " xstr(FUNCTION_UNDER_TEST) " ualign srcs=%d\n", srcs);
dump_matrix(ubuffs, 5, TEST_SOURCES);
printf("dprod_base:");
dump(dest_ref, 25);
printf("dprod:");
dump(udest_ptr, 25);
return -1;
}
// Confirm that padding around dests is unchanged
memset(dest_ref, 0, PTR_ALIGN_CHK_B); // Make reference zero buff
offset = udest_ptr - dest;
if (memcmp(dest, dest_ref, offset)) {
printf("Fail rand ualign pad start\n");
return -1;
}
if (memcmp(dest + offset + size, dest_ref, PTR_ALIGN_CHK_B - offset)) {
printf("Fail rand ualign pad end\n");
return -1;
}
#ifdef TEST_VERBOSE
putchar('.');
#endif
}
// Test all size alignment
align = (LEN_ALIGN_CHK_B != 0) ? 1 : 16;
for (size = TEST_LEN; size >= TEST_MIN_SIZE; size -= align) {
srcs = TEST_SOURCES;
for (i = 0; i < srcs; i++)
for (j = 0; j < size; j++)
buffs[i][j] = rand();
for (i = 0; i < srcs; i++)
g[i] = rand();
for (i = 0; i < srcs; i++)
gf_vect_mul_init(g[i], &g_tbls[i * 32]);
gf_vect_dot_prod_base(size, srcs, &g_tbls[0], buffs, dest_ref);
FUNCTION_UNDER_TEST(size, srcs, g_tbls, buffs, dest);
if (memcmp(dest_ref, dest, size)) {
printf("Fail rand " xstr(FUNCTION_UNDER_TEST) " ualign len=%d\n", size);
dump_matrix(buffs, 5, TEST_SOURCES);
printf("dprod_base:");
dump(dest_ref, 25);
printf("dprod:");
dump(dest, 25);
return -1;
}
}
printf("done all: Pass\n");
return 0;
}
|
