71bdd8a178
Use RTE_DIM macro to calculate array size. Suggested-by: David Marchand <david.marchand@redhat.com> Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com> Acked-by: David Marchand <david.marchand@redhat.com>
133 lines
3.3 KiB
C
133 lines
3.3 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2010-2014 Intel Corporation
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*/
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <rte_common.h>
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#include <rte_random.h>
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#include <rte_memcpy.h>
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#include "test.h"
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/*
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* Set this to the maximum buffer size you want to test. If it is 0, then the
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* values in the buf_sizes[] array below will be used.
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*/
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#define TEST_VALUE_RANGE 0
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/* List of buffer sizes to test */
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#if TEST_VALUE_RANGE == 0
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static size_t buf_sizes[] = {
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0, 1, 7, 8, 9, 15, 16, 17, 31, 32, 33, 63, 64, 65, 127, 128, 129, 255,
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256, 257, 320, 384, 511, 512, 513, 1023, 1024, 1025, 1518, 1522, 1600,
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2048, 3072, 4096, 5120, 6144, 7168, 8192
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};
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/* MUST be as large as largest packet size above */
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#define SMALL_BUFFER_SIZE 8192
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#else /* TEST_VALUE_RANGE != 0 */
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static size_t buf_sizes[TEST_VALUE_RANGE];
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#define SMALL_BUFFER_SIZE TEST_VALUE_RANGE
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#endif /* TEST_VALUE_RANGE == 0 */
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/* Data is aligned on this many bytes (power of 2) */
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#define ALIGNMENT_UNIT 32
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/*
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* Create two buffers, and initialise one with random values. These are copied
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* to the second buffer and then compared to see if the copy was successful.
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* The bytes outside the copied area are also checked to make sure they were not
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* changed.
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*/
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static int
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test_single_memcpy(unsigned int off_src, unsigned int off_dst, size_t size)
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{
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unsigned int i;
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uint8_t dest[SMALL_BUFFER_SIZE + ALIGNMENT_UNIT];
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uint8_t src[SMALL_BUFFER_SIZE + ALIGNMENT_UNIT];
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void * ret;
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/* Setup buffers */
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for (i = 0; i < SMALL_BUFFER_SIZE + ALIGNMENT_UNIT; i++) {
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dest[i] = 0;
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src[i] = (uint8_t) rte_rand();
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}
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/* Do the copy */
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ret = rte_memcpy(dest + off_dst, src + off_src, size);
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if (ret != (dest + off_dst)) {
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printf("rte_memcpy() returned %p, not %p\n",
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ret, dest + off_dst);
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}
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/* Check nothing before offset is affected */
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for (i = 0; i < off_dst; i++) {
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if (dest[i] != 0) {
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printf("rte_memcpy() failed for %u bytes (offsets=%u,%u): "
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"[modified before start of dst].\n",
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(unsigned)size, off_src, off_dst);
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return -1;
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}
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}
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/* Check everything was copied */
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for (i = 0; i < size; i++) {
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if (dest[i + off_dst] != src[i + off_src]) {
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printf("rte_memcpy() failed for %u bytes (offsets=%u,%u): "
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"[didn't copy byte %u].\n",
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(unsigned)size, off_src, off_dst, i);
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return -1;
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}
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}
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/* Check nothing after copy was affected */
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for (i = size; i < SMALL_BUFFER_SIZE; i++) {
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if (dest[i + off_dst] != 0) {
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printf("rte_memcpy() failed for %u bytes (offsets=%u,%u): "
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"[copied too many].\n",
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(unsigned)size, off_src, off_dst);
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return -1;
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}
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}
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return 0;
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}
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/*
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* Check functionality for various buffer sizes and data offsets/alignments.
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*/
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static int
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func_test(void)
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{
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unsigned int off_src, off_dst, i;
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int ret;
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for (off_src = 0; off_src < ALIGNMENT_UNIT; off_src++) {
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for (off_dst = 0; off_dst < ALIGNMENT_UNIT; off_dst++) {
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for (i = 0; i < RTE_DIM(buf_sizes); i++) {
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ret = test_single_memcpy(off_src, off_dst,
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buf_sizes[i]);
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if (ret != 0)
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return -1;
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}
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}
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}
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return 0;
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}
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static int
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test_memcpy(void)
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{
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int ret;
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ret = func_test();
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if (ret != 0)
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return -1;
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return 0;
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}
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REGISTER_TEST_COMMAND(memcpy_autotest, test_memcpy);
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