1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2014 Intel Corporation
10 #include <rte_memory.h>
11 #include <rte_common.h>
12 #include <rte_memzone.h>
20 * - Dump the mapped memory. The python-expect script checks that at
21 * least one line is dumped.
23 * - Check that memory size is different than 0.
25 * - Try to read all memory; it should not segfault.
29 * ASan complains about accessing unallocated memory.
30 * See: https://bugs.dpdk.org/show_bug.cgi?id=880
34 check_mem(const struct rte_memseg_list *msl __rte_unused,
35 const struct rte_memseg *ms, void *arg __rte_unused)
37 volatile uint8_t *mem = (volatile uint8_t *) ms->addr;
38 size_t i, max = ms->len;
40 for (i = 0; i < max; i++, mem++)
46 check_seg_fds(const struct rte_memseg_list *msl, const struct rte_memseg *ms,
47 void *arg __rte_unused)
52 /* skip external segments */
56 /* try segment fd first. we're in a callback, so thread-unsafe */
57 ret = rte_memseg_get_fd_thread_unsafe(ms);
59 /* ENOTSUP means segment is valid, but there is not support for
60 * segment fd API (e.g. on FreeBSD).
62 if (rte_errno == ENOTSUP)
64 /* all other errors are treated as failures */
68 /* we're able to get memseg fd - try getting its offset */
69 ret = rte_memseg_get_fd_offset_thread_unsafe(ms, &offset);
71 if (rte_errno == ENOTSUP)
85 * dump the mapped memory: the python-expect script checks
86 * that at least one line is dumped
88 printf("Dump memory layout\n");
89 rte_dump_physmem_layout(stdout);
91 /* check that memory size is != 0 */
92 s = rte_eal_get_physmem_size();
94 printf("No memory detected\n");
98 /* try to read memory (should not segfault) */
99 rte_memseg_walk(check_mem, NULL);
101 /* check segment fd support */
102 ret = rte_memseg_walk(check_seg_fds, NULL);
104 printf("Segment fd API is unsupported\n");
105 } else if (ret == -1) {
106 printf("Error getting segment fd's\n");
113 REGISTER_TEST_COMMAND(memory_autotest, test_memory);