isa-l/erasure_code/gf_vect_mad_test.c

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#include <stdio.h>
#include <stdlib.h>
#include <string.h> // for memset, memcmp
#include "erasure_code.h"
#include "test.h"

#ifndef ALIGN_SIZE
#define ALIGN_SIZE 32
#endif

#ifndef FUNCTION_UNDER_TEST
// By default, test multi-binary version
#define FUNCTION_UNDER_TEST gf_vect_mad
#define REF_FUNCTION        gf_vect_dot_prod
#define VECT                1
#endif

#ifndef TEST_MIN_SIZE
#define TEST_MIN_SIZE 64
#endif

#define str(s)  #s
#define xstr(s) str(s)

#define TEST_LEN      8192
#define TEST_SIZE     (TEST_LEN / 2)
#define TEST_MEM      TEST_SIZE
#define TEST_LOOPS    20000
#define TEST_TYPE_STR ""

#ifndef TEST_SOURCES
#define TEST_SOURCES 16
#endif
#ifndef RANDOMS
#define RANDOMS 20
#endif

#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 ALIGN_SIZE
#define LEN_ALIGN_CHK_B ALIGN_SIZE // 0 for aligned only
#endif

#define str(s)  #s
#define xstr(s) str(s)

typedef unsigned char u8;

#if (VECT == 1)
#define LAST_ARG *dest
#else
#define LAST_ARG **dest
#endif

extern void
FUNCTION_UNDER_TEST(int len, int vec, int vec_i, unsigned char *gftbls, unsigned char *src,
                    unsigned char LAST_ARG);
extern void
REF_FUNCTION(int len, int vlen, unsigned char *gftbls, unsigned char **src, unsigned char LAST_ARG);

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;
        void *buf;
        u8 gf[6][TEST_SOURCES];
        u8 *g_tbls;
        u8 *dest_ref[VECT];
        u8 *dest_ptrs[VECT], *buffs[TEST_SOURCES];
        int vector = VECT;

        int align, size;
        unsigned char *efence_buffs[TEST_SOURCES];
        unsigned int offset;
        u8 *ubuffs[TEST_SOURCES];
        u8 *udest_ptrs[VECT];
        printf("test" 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, 16, 2 * (vector * TEST_SOURCES * 32))) {
                printf("alloc error: Fail");
                return -1;
        }
        g_tbls = buf;

        for (i = 0; i < vector; i++) {
                if (posix_memalign(&buf, 64, TEST_LEN)) {
                        printf("alloc error: Fail");
                        return -1;
                }
                dest_ptrs[i] = buf;
                memset(dest_ptrs[i], 0, TEST_LEN);
        }

        for (i = 0; i < vector; i++) {
                if (posix_memalign(&buf, 64, TEST_LEN)) {
                        printf("alloc error: Fail");
                        return -1;
                }
                dest_ref[i] = buf;
                memset(dest_ref[i], 0, TEST_LEN);
        }

        // Test of all zeros
        for (i = 0; i < TEST_SOURCES; i++)
                memset(buffs[i], 0, TEST_LEN);

        switch (vector) {
        case 6:
                memset(gf[5], 0xe6, TEST_SOURCES);
        case 5:
                memset(gf[4], 4, TEST_SOURCES);
        case 4:
                memset(gf[3], 9, TEST_SOURCES);
        case 3:
                memset(gf[2], 7, TEST_SOURCES);
        case 2:
                memset(gf[1], 1, TEST_SOURCES);
        case 1:
                memset(gf[0], 2, TEST_SOURCES);
                break;
        default:
                return -1;
        }

        for (i = 0; i < TEST_SOURCES; i++)
                for (j = 0; j < TEST_LEN; j++)
                        buffs[i][j] = rand();

        for (i = 0; i < vector; i++)
                for (j = 0; j < TEST_SOURCES; j++) {
                        gf[i][j] = rand();
                        gf_vect_mul_init(gf[i][j], &g_tbls[i * (32 * TEST_SOURCES) + j * 32]);
                }

        for (i = 0; i < vector; i++)
                gf_vect_dot_prod_base(TEST_LEN, TEST_SOURCES, &g_tbls[i * 32 * TEST_SOURCES], buffs,
                                      dest_ref[i]);

        for (i = 0; i < vector; i++)
                memset(dest_ptrs[i], 0, TEST_LEN);
        for (i = 0; i < TEST_SOURCES; i++) {
#if (VECT == 1)
                FUNCTION_UNDER_TEST(TEST_LEN, TEST_SOURCES, i, g_tbls, buffs[i], *dest_ptrs);
#else
                FUNCTION_UNDER_TEST(TEST_LEN, TEST_SOURCES, i, g_tbls, buffs[i], dest_ptrs);
#endif
        }
        for (i = 0; i < vector; i++) {
                if (0 != memcmp(dest_ref[i], dest_ptrs[i], TEST_LEN)) {
                        printf("Fail zero " xstr(FUNCTION_UNDER_TEST) " test%d\n", i);
                        dump_matrix(buffs, vector, TEST_SOURCES);
                        printf("dprod_base:");
                        dump(dest_ref[i], 25);
                        printf("dprod_dut:");
                        dump(dest_ptrs[i], 25);
                        return -1;
                }
        }

#if (VECT == 1)
        REF_FUNCTION(TEST_LEN, TEST_SOURCES, g_tbls, buffs, *dest_ref);
#else
        REF_FUNCTION(TEST_LEN, TEST_SOURCES, g_tbls, buffs, dest_ref);
#endif
        for (i = 0; i < vector; i++) {
                if (0 != memcmp(dest_ref[i], dest_ptrs[i], TEST_LEN)) {
                        printf("Fail zero " xstr(FUNCTION_UNDER_TEST) " test%d\n", i);
                        dump_matrix(buffs, vector, TEST_SOURCES);
                        printf("dprod_base:");
                        dump(dest_ref[i], 25);
                        printf("dprod_dut:");
                        dump(dest_ptrs[i], 25);
                        return -1;
                }
        }

#ifdef TEST_VERBOSE
        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 < vector; i++)
                        for (j = 0; j < TEST_SOURCES; j++) {
                                gf[i][j] = rand();
                                gf_vect_mul_init(gf[i][j],
                                                 &g_tbls[i * (32 * TEST_SOURCES) + j * 32]);
                        }

                for (i = 0; i < vector; i++)
                        gf_vect_dot_prod_base(TEST_LEN, TEST_SOURCES,
                                              &g_tbls[i * 32 * TEST_SOURCES], buffs, dest_ref[i]);

                for (i = 0; i < vector; i++)
                        memset(dest_ptrs[i], 0, TEST_LEN);
                for (i = 0; i < TEST_SOURCES; i++) {
#if (VECT == 1)
                        FUNCTION_UNDER_TEST(TEST_LEN, TEST_SOURCES, i, g_tbls, buffs[i],
                                            *dest_ptrs);
#else
                        FUNCTION_UNDER_TEST(TEST_LEN, TEST_SOURCES, i, g_tbls, buffs[i], dest_ptrs);
#endif
                }
                for (i = 0; i < vector; i++) {
                        if (0 != memcmp(dest_ref[i], dest_ptrs[i], TEST_LEN)) {
                                printf("Fail rand " xstr(FUNCTION_UNDER_TEST) " test%d %d\n", i,
                                       rtest);
                                dump_matrix(buffs, vector, TEST_SOURCES);
                                printf("dprod_base:");
                                dump(dest_ref[i], 25);
                                printf("dprod_dut:");
                                dump(dest_ptrs[i], 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 < vector; i++)
                                for (j = 0; j < srcs; j++) {
                                        gf[i][j] = rand();
                                        gf_vect_mul_init(gf[i][j],
                                                         &g_tbls[i * (32 * srcs) + j * 32]);
                                }

                        for (i = 0; i < vector; i++)
                                gf_vect_dot_prod_base(TEST_LEN, srcs, &g_tbls[i * 32 * srcs], buffs,
                                                      dest_ref[i]);

                        for (i = 0; i < vector; i++)
                                memset(dest_ptrs[i], 0, TEST_LEN);
                        for (i = 0; i < srcs; i++) {
#if (VECT == 1)
                                FUNCTION_UNDER_TEST(TEST_LEN, srcs, i, g_tbls, buffs[i],
                                                    *dest_ptrs);
#else
                                FUNCTION_UNDER_TEST(TEST_LEN, srcs, i, g_tbls, buffs[i], dest_ptrs);
#endif
                        }
                        for (i = 0; i < vector; i++) {
                                if (0 != memcmp(dest_ref[i], dest_ptrs[i], TEST_LEN)) {
                                        printf("Fail rand " xstr(
                                                       FUNCTION_UNDER_TEST) " test%d srcs=%d\n",
                                               i, srcs);
                                        dump_matrix(buffs, vector, TEST_SOURCES);
                                        printf("dprod_base:");
                                        dump(dest_ref[i], 25);
                                        printf("dprod_dut:");
                                        dump(dest_ptrs[i], 25);
                                        return -1;
                                }
                        }

#ifdef TEST_VERBOSE
                        putchar('.');
#endif
                }
        }

        // Run tests at end of buffer for Electric Fence
        align = (LEN_ALIGN_CHK_B != 0) ? 1 : ALIGN_SIZE;
        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 < vector; i++)
                        for (j = 0; j < TEST_SOURCES; j++) {
                                gf[i][j] = rand();
                                gf_vect_mul_init(gf[i][j],
                                                 &g_tbls[i * (32 * TEST_SOURCES) + j * 32]);
                        }

                for (i = 0; i < vector; i++)
                        gf_vect_dot_prod_base(size, TEST_SOURCES, &g_tbls[i * 32 * TEST_SOURCES],
                                              efence_buffs, dest_ref[i]);

                for (i = 0; i < vector; i++)
                        memset(dest_ptrs[i], 0, size);
                for (i = 0; i < TEST_SOURCES; i++) {
#if (VECT == 1)
                        FUNCTION_UNDER_TEST(size, TEST_SOURCES, i, g_tbls, efence_buffs[i],
                                            *dest_ptrs);
#else
                        FUNCTION_UNDER_TEST(size, TEST_SOURCES, i, g_tbls, efence_buffs[i],
                                            dest_ptrs);
#endif
                }
                for (i = 0; i < vector; i++) {
                        if (0 != memcmp(dest_ref[i], dest_ptrs[i], size)) {
                                printf("Fail rand " xstr(FUNCTION_UNDER_TEST) " test%d size=%d\n",
                                       i, size);
                                dump_matrix(buffs, vector, TEST_SOURCES);
                                printf("dprod_base:");
                                dump(dest_ref[i], TEST_MIN_SIZE + align);
                                printf("dprod_dut:");
                                dump(dest_ptrs[i], TEST_MIN_SIZE + 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));

                for (i = 0; i < vector; i++) {
                        udest_ptrs[i] = dest_ptrs[i] + (rand() & (PTR_ALIGN_CHK_B - offset));
                        memset(dest_ptrs[i], 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 < vector; i++)
                        for (j = 0; j < srcs; j++) {
                                gf[i][j] = rand();
                                gf_vect_mul_init(gf[i][j], &g_tbls[i * (32 * srcs) + j * 32]);
                        }

                for (i = 0; i < vector; i++)
                        gf_vect_dot_prod_base(size, srcs, &g_tbls[i * 32 * srcs], ubuffs,
                                              dest_ref[i]);

                for (i = 0; i < srcs; i++) {
#if (VECT == 1)
                        FUNCTION_UNDER_TEST(size, srcs, i, g_tbls, ubuffs[i], *udest_ptrs);
#else
                        FUNCTION_UNDER_TEST(size, srcs, i, g_tbls, ubuffs[i], udest_ptrs);
#endif
                }
                for (i = 0; i < vector; i++) {
                        if (0 != memcmp(dest_ref[i], udest_ptrs[i], size)) {
                                printf("Fail rand " xstr(
                                               FUNCTION_UNDER_TEST) " test%d ualign srcs=%d\n",
                                       i, srcs);
                                dump_matrix(buffs, vector, TEST_SOURCES);
                                printf("dprod_base:");
                                dump(dest_ref[i], 25);
                                printf("dprod_dut:");
                                dump(udest_ptrs[i], 25);
                                return -1;
                        }
                }

                // Confirm that padding around dests is unchanged
                memset(dest_ref[0], 0, PTR_ALIGN_CHK_B); // Make reference zero buff

                for (i = 0; i < vector; i++) {
                        offset = udest_ptrs[i] - dest_ptrs[i];
                        if (memcmp(dest_ptrs[i], dest_ref[0], offset)) {
                                printf("Fail rand ualign pad1 start\n");
                                return -1;
                        }
                        if (memcmp(dest_ptrs[i] + offset + size, dest_ref[0],
                                   PTR_ALIGN_CHK_B - offset)) {
                                printf("Fail rand ualign pad1 end\n");
                                return -1;
                        }
                }

#ifdef TEST_VERBOSE
                putchar('.');
#endif
        }

        // Test all size alignment
        align = (LEN_ALIGN_CHK_B != 0) ? 1 : ALIGN_SIZE;

        for (size = TEST_LEN; size >= TEST_MIN_SIZE; size -= align) {
                for (i = 0; i < TEST_SOURCES; i++)
                        for (j = 0; j < size; j++)
                                buffs[i][j] = rand();

                for (i = 0; i < vector; i++) {
                        for (j = 0; j < TEST_SOURCES; j++) {
                                gf[i][j] = rand();
                                gf_vect_mul_init(gf[i][j],
                                                 &g_tbls[i * (32 * TEST_SOURCES) + j * 32]);
                        }
                        memset(dest_ptrs[i], 0, TEST_LEN); // zero pad to check write-over
                }

                for (i = 0; i < vector; i++)
                        gf_vect_dot_prod_base(size, TEST_SOURCES, &g_tbls[i * 32 * TEST_SOURCES],
                                              buffs, dest_ref[i]);

                for (i = 0; i < TEST_SOURCES; i++) {
#if (VECT == 1)
                        FUNCTION_UNDER_TEST(size, TEST_SOURCES, i, g_tbls, buffs[i], *dest_ptrs);
#else
                        FUNCTION_UNDER_TEST(size, TEST_SOURCES, i, g_tbls, buffs[i], dest_ptrs);
#endif
                }
                for (i = 0; i < vector; i++) {
                        if (0 != memcmp(dest_ref[i], dest_ptrs[i], size)) {
                                printf("Fail rand " xstr(
                                               FUNCTION_UNDER_TEST) " test%d ualign len=%d\n",
                                       i, size);
                                dump_matrix(buffs, vector, TEST_SOURCES);
                                printf("dprod_base:");
                                dump(dest_ref[i], 25);
                                printf("dprod_dut:");
                                dump(dest_ptrs[i], 25);
                                return -1;
                        }
                }

#ifdef TEST_VERBOSE
                putchar('.');
#endif
        }

        printf("Pass\n");
        return 0;
}