a9de470cc7
Since all other apps have been moved to the "app" folder, the autotest app remains alone in the test folder. Rather than having an entire top-level folder for this, we can move it back to where it all started in early versions of DPDK - the "app/" folder. This move has a couple of advantages: * This reduces clutter at the top level of the project, due to one less folder. * It eliminates the separate build task necessary for building the autotests using make "make test-build" which means that developers are less likely to miss something in their own compilation tests * It re-aligns the final location of the test binary in the app folder when building with make with it's location in the source tree. For meson builds, the autotest app is different from the other apps in that it needs a series of different test cases defined for it for use by "meson test". Therefore, it does not get built as part of the main loop in the app folder, but gets built separately at the end. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
134 lines
3.3 KiB
C
134 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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unsigned int num_buf_sizes = sizeof(buf_sizes) / sizeof(buf_sizes[0]);
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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 < num_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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