minio/pkg/storage/erasure/isal/src/ec-highlevel-func.c

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#include <limits.h>
#include <stdint.h>
#include "erasure-code.h"
#include "erasure/types.h"

void ec_init_tables(int k, int rows, uint8_t *a, uint8_t *g_tbls)
{
        int i, j;

        for (i = 0; i < rows; i++) {
                for (j = 0; j < k; j++) {
                        gf_vect_mul_init(*a++, g_tbls);
                        g_tbls += 32;
                }
        }
}

#if __WORDSIZE == 64 || _WIN64 || __x86_64__
void ec_encode_data_sse(int len, int k, int rows, uint8_t *g_tbls, uint8_t **data,
                        uint8_t **coding)
{

        if (len < 16) {
                ec_encode_data_base(len, k, rows, g_tbls, data, coding);
                return;
        }

        while (rows >= 4) {
                gf_4vect_dot_prod_sse(len, k, g_tbls, data, coding);
                g_tbls += 4 * k * 32;
                coding += 4;
                rows -= 4;
        }
        switch (rows) {
        case 3:
                gf_3vect_dot_prod_sse(len, k, g_tbls, data, coding);
                break;
        case 2:
                gf_2vect_dot_prod_sse(len, k, g_tbls, data, coding);
                break;
        case 1:
                gf_vect_dot_prod_sse(len, k, g_tbls, data, *coding);
                break;
        case 0:
                break;
        }

}

void ec_encode_data_avx(int len, int k, int rows, uint8_t *g_tbls, uint8_t **data,
                        uint8_t **coding)
{

        if (len < 16) {
                ec_encode_data_base(len, k, rows, g_tbls, data, coding);
                return;
        }

        while (rows >= 4) {
                gf_4vect_dot_prod_avx(len, k, g_tbls, data, coding);
                g_tbls += 4 * k * 32;
                coding += 4;
                rows -= 4;
        }
        switch (rows) {
        case 3:
                gf_3vect_dot_prod_avx(len, k, g_tbls, data, coding);
                break;
        case 2:
                gf_2vect_dot_prod_avx(len, k, g_tbls, data, coding);
                break;
        case 1:
                gf_vect_dot_prod_avx(len, k, g_tbls, data, *coding);
                break;
        case 0:
                break;
        }

}

void ec_encode_data_avx2(int len, int k, int rows, uint8_t *g_tbls, uint8_t **data,
                         uint8_t **coding)
{

        if (len < 32) {
                ec_encode_data_base(len, k, rows, g_tbls, data, coding);
                return;
        }

        while (rows >= 4) {
                gf_4vect_dot_prod_avx2(len, k, g_tbls, data, coding);
                g_tbls += 4 * k * 32;
                coding += 4;
                rows -= 4;
        }
        switch (rows) {
        case 3:
                gf_3vect_dot_prod_avx2(len, k, g_tbls, data, coding);
                break;
        case 2:
                gf_2vect_dot_prod_avx2(len, k, g_tbls, data, coding);
                break;
        case 1:
                gf_vect_dot_prod_avx2(len, k, g_tbls, data, *coding);
                break;
        case 0:
                break;
        }

}

#endif //__WORDSIZE == 64 || _WIN64 || __x86_64__

struct slver {
        UINT16 snum;
        UINT8 ver;
        UINT8 core;
};

// Version info
struct slver ec_init_tables_slver_00010068;
struct slver ec_init_tables_slver = { 0x0068, 0x01, 0x00 };

struct slver ec_encode_data_sse_slver_00020069;
struct slver ec_encode_data_sse_slver = { 0x0069, 0x02, 0x00 };