1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2021 6WIND S.A.
3 */
4
5 #include <stdlib.h>
6 #include <stdio.h>
7 #include <string.h>
8
9 #include <rte_common.h>
10 #include <rte_kvargs.h>
11 #include <rte_bus_vdev.h>
12
13 #include "test.h"
14
15 #define TEST_VDEV_KEY_NAME "name"
16
17 static const char * const valid_keys[] = {
18 TEST_VDEV_KEY_NAME,
19 NULL,
20 };
21
22 static int
cmp_dev_name(const struct rte_device * dev,const void * name)23 cmp_dev_name(const struct rte_device *dev, const void *name)
24 {
25 return strcmp(dev->name, name);
26 }
27
28 static int
cmp_dev_match(const struct rte_device * dev,const void * _kvlist)29 cmp_dev_match(const struct rte_device *dev, const void *_kvlist)
30 {
31 const struct rte_kvargs *kvlist = _kvlist;
32 const char *key = TEST_VDEV_KEY_NAME;
33 const char *name;
34
35 /* no kvlist arg, all devices match */
36 if (kvlist == NULL)
37 return 0;
38
39 /* if key is present in kvlist and does not match, filter device */
40 name = rte_kvargs_get(kvlist, key);
41 if (name != NULL && strcmp(name, dev->name))
42 return -1;
43
44 return 0;
45 }
46
47 static struct rte_device *
get_matching_vdev(const char * match_str)48 get_matching_vdev(const char *match_str)
49 {
50 struct rte_bus *vdev_bus = rte_bus_find_by_name("vdev");
51 struct rte_kvargs *kvargs = NULL;
52 struct rte_device *dev;
53
54 if (match_str != NULL) {
55 kvargs = rte_kvargs_parse(match_str, valid_keys);
56 if (kvargs == NULL) {
57 printf("Failed to parse match string\n");
58 return NULL;
59 }
60 }
61
62 dev = vdev_bus->find_device(NULL, cmp_dev_match, kvargs);
63 rte_kvargs_free(kvargs);
64
65 return dev;
66 }
67
68 static int
test_vdev_bus(void)69 test_vdev_bus(void)
70 {
71 struct rte_bus *vdev_bus = rte_bus_find_by_name("vdev");
72 struct rte_dev_iterator dev_iter = { 0 };
73 struct rte_device *dev, *dev0, *dev1;
74
75 /* not supported */
76 if (vdev_bus == NULL)
77 return 0;
78
79 /* create first vdev */
80 if (rte_vdev_init("net_null_test0", "") < 0) {
81 printf("Failed to create vdev net_null_test0\n");
82 goto fail;
83 }
84 dev0 = vdev_bus->find_device(NULL, cmp_dev_name, "net_null_test0");
85 if (dev0 == NULL) {
86 printf("Cannot find net_null_test0 vdev\n");
87 goto fail;
88 }
89
90 /* create second vdev */
91 if (rte_vdev_init("net_null_test1", "") < 0) {
92 printf("Failed to create vdev net_null_test1\n");
93 goto fail;
94 }
95 dev1 = vdev_bus->find_device(NULL, cmp_dev_name, "net_null_test1");
96 if (dev1 == NULL) {
97 printf("Cannot find net_null_test1 vdev\n");
98 goto fail;
99 }
100
101 /* try to match vdevs */
102 dev = get_matching_vdev("name=net_null_test0");
103 if (dev != dev0) {
104 printf("Cannot match net_null_test0 vdev\n");
105 goto fail;
106 }
107
108 dev = get_matching_vdev("name=net_null_test1");
109 if (dev != dev1) {
110 printf("Cannot match net_null_test1 vdev\n");
111 goto fail;
112 }
113
114 dev = get_matching_vdev("name=unexistant");
115 if (dev != NULL) {
116 printf("Unexistant vdev should not match\n");
117 goto fail;
118 }
119
120 dev = get_matching_vdev("");
121 if (dev == NULL || dev == dev1) {
122 printf("Cannot match any vdev with empty match string\n");
123 goto fail;
124 }
125
126 dev = get_matching_vdev(NULL);
127 if (dev == NULL || dev == dev1) {
128 printf("Cannot match any vdev with NULL match string\n");
129 goto fail;
130 }
131
132 /* iterate all vdevs, and ensure we find vdev0 and vdev1 */
133 RTE_DEV_FOREACH(dev, "bus=vdev", &dev_iter) {
134 if (dev == dev0)
135 dev0 = NULL;
136 else if (dev == dev1)
137 dev1 = NULL;
138 }
139 if (dev0 != NULL) {
140 printf("dev0 was not iterated\n");
141 goto fail;
142 }
143 if (dev1 != NULL) {
144 printf("dev1 was not iterated\n");
145 goto fail;
146 }
147
148 rte_vdev_uninit("net_null_test0");
149 rte_vdev_uninit("net_null_test1");
150
151 return 0;
152
153 fail:
154 rte_vdev_uninit("net_null_test0");
155 rte_vdev_uninit("net_null_test1");
156 return -1;
157 }
158
159 static int
test_vdev(void)160 test_vdev(void)
161 {
162 printf("== test vdev bus ==\n");
163 if (test_vdev_bus() < 0)
164 return -1;
165 return 0;
166 }
167
168 REGISTER_TEST_COMMAND(vdev_autotest, test_vdev);
169