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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 | ||
33 | static char *result[] = { "NOT OKAY", "OKAY" }; | |
34 | ||
35 | struct 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 | ||
46 | static 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 | ||
116 | int 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: | |
169 | usage: | |
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" | |
e4758422 | 176 | "\t-l Legacy IRQ test\n" |
3f2ed813 KVA |
177 | "\t-r Read buffer test\n" |
178 | "\t-w Write buffer test\n" | |
179 | "\t-c Copy buffer test\n" | |
180 | "\t-s <size> Size of buffer {default: 100KB}\n", | |
181 | argv[0]); | |
182 | return -EINVAL; | |
183 | } | |
184 | ||
185 | run_test(test); | |
186 | return 0; | |
187 | } |