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-rw-r--r--tools/pci/pcitest.c186
1 files changed, 186 insertions, 0 deletions
diff --git a/tools/pci/pcitest.c b/tools/pci/pcitest.c
new file mode 100644
index 000000000000..ad54a58d7dda
--- /dev/null
+++ b/tools/pci/pcitest.c
@@ -0,0 +1,186 @@
1/**
2 * Userspace PCI Endpoint Test Module
3 *
4 * Copyright (C) 2017 Texas Instruments
5 * Author: Kishon Vijay Abraham I <kishon@ti.com>
6 *
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 of
9 * the License as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20#include <errno.h>
21#include <fcntl.h>
22#include <stdbool.h>
23#include <stdio.h>
24#include <stdlib.h>
25#include <sys/ioctl.h>
26#include <time.h>
27#include <unistd.h>
28
29#include <linux/pcitest.h>
30
31#define BILLION 1E9
32
33static char *result[] = { "NOT OKAY", "OKAY" };
34
35struct pci_test {
36 char *device;
37 char barnum;
38 bool legacyirq;
39 unsigned int msinum;
40 bool read;
41 bool write;
42 bool copy;
43 unsigned long size;
44};
45
46static int run_test(struct pci_test *test)
47{
48 long ret;
49 int fd;
50 struct timespec start, end;
51 double time;
52
53 fd = open(test->device, O_RDWR);
54 if (fd < 0) {
55 perror("can't open PCI Endpoint Test device");
56 return fd;
57 }
58
59 if (test->barnum >= 0 && test->barnum <= 5) {
60 ret = ioctl(fd, PCITEST_BAR, test->barnum);
61 fprintf(stdout, "BAR%d:\t\t", test->barnum);
62 if (ret < 0)
63 fprintf(stdout, "TEST FAILED\n");
64 else
65 fprintf(stdout, "%s\n", result[ret]);
66 }
67
68 if (test->legacyirq) {
69 ret = ioctl(fd, PCITEST_LEGACY_IRQ, 0);
70 fprintf(stdout, "LEGACY IRQ:\t");
71 if (ret < 0)
72 fprintf(stdout, "TEST FAILED\n");
73 else
74 fprintf(stdout, "%s\n", result[ret]);
75 }
76
77 if (test->msinum > 0 && test->msinum <= 32) {
78 ret = ioctl(fd, PCITEST_MSI, test->msinum);
79 fprintf(stdout, "MSI%d:\t\t", test->msinum);
80 if (ret < 0)
81 fprintf(stdout, "TEST FAILED\n");
82 else
83 fprintf(stdout, "%s\n", result[ret]);
84 }
85
86 if (test->write) {
87 ret = ioctl(fd, PCITEST_WRITE, test->size);
88 fprintf(stdout, "WRITE (%7ld bytes):\t\t", test->size);
89 if (ret < 0)
90 fprintf(stdout, "TEST FAILED\n");
91 else
92 fprintf(stdout, "%s\n", result[ret]);
93 }
94
95 if (test->read) {
96 ret = ioctl(fd, PCITEST_READ, test->size);
97 fprintf(stdout, "READ (%7ld bytes):\t\t", test->size);
98 if (ret < 0)
99 fprintf(stdout, "TEST FAILED\n");
100 else
101 fprintf(stdout, "%s\n", result[ret]);
102 }
103
104 if (test->copy) {
105 ret = ioctl(fd, PCITEST_COPY, test->size);
106 fprintf(stdout, "COPY (%7ld bytes):\t\t", test->size);
107 if (ret < 0)
108 fprintf(stdout, "TEST FAILED\n");
109 else
110 fprintf(stdout, "%s\n", result[ret]);
111 }
112
113 fflush(stdout);
114}
115
116int main(int argc, char **argv)
117{
118 int c;
119 struct pci_test *test;
120
121 test = calloc(1, sizeof(*test));
122 if (!test) {
123 perror("Fail to allocate memory for pci_test\n");
124 return -ENOMEM;
125 }
126
127 /* since '0' is a valid BAR number, initialize it to -1 */
128 test->barnum = -1;
129
130 /* set default size as 100KB */
131 test->size = 0x19000;
132
133 /* set default endpoint device */
134 test->device = "/dev/pci-endpoint-test.0";
135
136 while ((c = getopt(argc, argv, "D:b:m:lrwcs:")) != EOF)
137 switch (c) {
138 case 'D':
139 test->device = optarg;
140 continue;
141 case 'b':
142 test->barnum = atoi(optarg);
143 if (test->barnum < 0 || test->barnum > 5)
144 goto usage;
145 continue;
146 case 'l':
147 test->legacyirq = true;
148 continue;
149 case 'm':
150 test->msinum = atoi(optarg);
151 if (test->msinum < 1 || test->msinum > 32)
152 goto usage;
153 continue;
154 case 'r':
155 test->read = true;
156 continue;
157 case 'w':
158 test->write = true;
159 continue;
160 case 'c':
161 test->copy = true;
162 continue;
163 case 's':
164 test->size = strtoul(optarg, NULL, 0);
165 continue;
166 case '?':
167 case 'h':
168 default:
169usage:
170 fprintf(stderr,
171 "usage: %s [options]\n"
172 "Options:\n"
173 "\t-D <dev> PCI endpoint test device {default: /dev/pci-endpoint-test.0}\n"
174 "\t-b <bar num> BAR test (bar number between 0..5)\n"
175 "\t-m <msi num> MSI test (msi number between 1..32)\n"
176 "\t-r Read buffer test\n"
177 "\t-w Write buffer test\n"
178 "\t-c Copy buffer test\n"
179 "\t-s <size> Size of buffer {default: 100KB}\n",
180 argv[0]);
181 return -EINVAL;
182 }
183
184 run_test(test);
185 return 0;
186}
generated by cgit v1.2.2 (git 2.25.0) at 2025-05-31 07:17:41 -0400