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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
/* SPDX-License-Identifier: MIT */
/*
* Description: run various nop tests
*
*/
#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include "liburing.h"
#include "helpers.h"
#include "test.h"
static int seq;
static int extra1 = 100, extra2 = 200;
static int want_extra1 = 100, want_extra2 = 200;
static int test_single_nop(struct io_uring *ring, unsigned req_flags, bool cqe32)
{
struct io_uring_cqe *cqe;
struct io_uring_sqe *sqe;
int ret;
sqe = io_uring_get_sqe(ring);
if (!sqe) {
fprintf(stderr, "get sqe failed\n");
goto err;
}
io_uring_prep_nop(sqe);
sqe->user_data = ++seq;
sqe->flags |= req_flags;
if (cqe32) {
sqe->nop_flags = IORING_NOP_CQE32;
sqe->off = extra1++;
sqe->addr = extra2++;
}
ret = io_uring_submit(ring);
if (ret <= 0) {
fprintf(stderr, "sqe submit failed: %d\n", ret);
goto err;
}
ret = io_uring_wait_cqe(ring, &cqe);
if (ret < 0) {
fprintf(stderr, "wait completion %d\n", ret);
goto err;
}
if (!cqe->user_data) {
fprintf(stderr, "Unexpected 0 user_data: %ld\n", (long) cqe->user_data);
goto err;
}
if (cqe32) {
if (!(cqe->flags & IORING_CQE_F_32)) {
fprintf(stderr, "CQE_F_32 not set\n");
goto err;
}
if (cqe->big_cqe[0] != want_extra1) {
fprintf(stderr, "Unexpected extra1: %ld, want %d\n", (long) cqe->big_cqe[0], want_extra1);
goto err;
}
want_extra1++;
if (cqe->big_cqe[1] != want_extra2) {
fprintf(stderr, "Unexpected extra2: %ld, want %d\n", (long) cqe->big_cqe[1], want_extra2);
goto err;
}
want_extra2++;
}
io_uring_cqe_seen(ring, cqe);
return T_EXIT_PASS;
err:
return T_EXIT_FAIL;
}
static int test_ring(unsigned flags)
{
struct io_uring ring;
struct io_uring_params p = { };
int ret, i;
p.flags = flags;
ret = io_uring_queue_init_params(8, &ring, &p);
if (ret) {
if (ret == -EINVAL)
return T_EXIT_SKIP;
fprintf(stderr, "ring setup failed: %d\n", ret);
return T_EXIT_FAIL;
}
test_single_nop(&ring, 0, 0);
for (i = 0; i < 16; i++) {
ret = test_single_nop(&ring, 0, 1);
if (ret) {
printf("fail off %d\n", i);
fprintf(stderr, "test_single_nop failed\n");
goto err;
}
}
err:
io_uring_queue_exit(&ring);
return ret;
}
int main(int argc, char *argv[])
{
int ret;
if (argc > 1)
return T_EXIT_SKIP;
ret = test_ring(IORING_SETUP_CQE_MIXED);
if (ret == T_EXIT_SKIP) {
return T_EXIT_SKIP;
} else if (ret != T_EXIT_PASS) {
fprintf(stderr, "Mixed ring test failed\n");
return ret;
}
return T_EXIT_PASS;
}
|
