1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2014 Intel Corporation
*/
#include <stdio.h>
#include <stdint.h>
#include <rte_eal.h>
#include <rte_memory.h>
#include <rte_common.h>
#include <rte_memzone.h>
#include "test.h"
/*
* Memory
* ======
*
* - Dump the mapped memory. The python-expect script checks that at
* least one line is dumped.
*
* - Check that memory size is different than 0.
*
* - Try to read all memory; it should not segfault.
*/
static int
check_mem(const struct rte_memseg_list *msl __rte_unused,
const struct rte_memseg *ms, void *arg __rte_unused)
{
volatile uint8_t *mem = (volatile uint8_t *) ms->addr;
size_t i, max = ms->len;
for (i = 0; i < max; i++, mem++)
*mem;
return 0;
}
static int
check_seg_fds(const struct rte_memseg_list *msl, const struct rte_memseg *ms,
void *arg __rte_unused)
{
size_t offset;
int ret;
/* skip external segments */
if (msl->external)
return 0;
/* try segment fd first. we're in a callback, so thread-unsafe */
ret = rte_memseg_get_fd_thread_unsafe(ms);
if (ret < 0) {
/* ENOTSUP means segment is valid, but there is not support for
* segment fd API (e.g. on FreeBSD).
*/
if (errno == ENOTSUP)
return 1;
/* all other errors are treated as failures */
return -1;
}
/* we're able to get memseg fd - try getting its offset */
ret = rte_memseg_get_fd_offset_thread_unsafe(ms, &offset);
if (ret < 0) {
if (errno == ENOTSUP)
return 1;
return -1;
}
return 0;
}
static int
test_memory(void)
{
uint64_t s;
int ret;
/*
* dump the mapped memory: the python-expect script checks
* that at least one line is dumped
*/
printf("Dump memory layout\n");
rte_dump_physmem_layout(stdout);
/* check that memory size is != 0 */
s = rte_eal_get_physmem_size();
if (s == 0) {
printf("No memory detected\n");
return -1;
}
/* try to read memory (should not segfault) */
rte_memseg_walk(check_mem, NULL);
/* check segment fd support */
ret = rte_memseg_walk(check_seg_fds, NULL);
if (ret == 1) {
printf("Segment fd API is unsupported\n");
} else if (ret == -1) {
printf("Error getting segment fd's\n");
return -1;
}
return 0;
}
REGISTER_TEST_COMMAND(memory_autotest, test_memory);
|
