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f1ca4da6 | 1 | #include <sys/zfs_context.h> |
2 | #include <sys/splat-ctl.h> | |
3 | ||
4 | #define KZT_SUBSYSTEM_TASKQ 0x0200 | |
5 | #define KZT_TASKQ_NAME "taskq" | |
6 | #define KZT_TASKQ_DESC "Kernel Task Queue Tests" | |
7 | ||
8 | #define KZT_TASKQ_TEST1_ID 0x0201 | |
9 | #define KZT_TASKQ_TEST1_NAME "single" | |
10 | #define KZT_TASKQ_TEST1_DESC "Single task queue, single task" | |
11 | ||
12 | #define KZT_TASKQ_TEST2_ID 0x0202 | |
13 | #define KZT_TASKQ_TEST2_NAME "multiple" | |
14 | #define KZT_TASKQ_TEST2_DESC "Multiple task queues, multiple tasks" | |
15 | ||
16 | typedef struct kzt_taskq_arg { | |
17 | int flag; | |
18 | int id; | |
19 | struct file *file; | |
20 | const char *name; | |
21 | } kzt_taskq_arg_t; | |
22 | ||
23 | /* Validation Test 1 - Create a taskq, queue a task, wait until | |
24 | * task completes, ensure task ran properly, cleanup taskq, | |
25 | */ | |
26 | static void | |
27 | kzt_taskq_test1_func(void *arg) | |
28 | { | |
29 | kzt_taskq_arg_t *tq_arg = (kzt_taskq_arg_t *)arg; | |
30 | ||
31 | ASSERT(tq_arg); | |
32 | kzt_vprint(tq_arg->file, KZT_TASKQ_TEST1_NAME, | |
33 | "Taskq '%s' function '%s' setting flag\n", | |
34 | tq_arg->name, sym2str(kzt_taskq_test1_func)); | |
35 | tq_arg->flag = 1; | |
36 | } | |
37 | ||
38 | static int | |
39 | kzt_taskq_test1(struct file *file, void *arg) | |
40 | { | |
41 | taskq_t *tq; | |
42 | taskqid_t id; | |
43 | kzt_taskq_arg_t tq_arg; | |
44 | ||
45 | kzt_vprint(file, KZT_TASKQ_TEST1_NAME, "Taskq '%s' creating\n", | |
46 | KZT_TASKQ_TEST1_NAME); | |
47 | if ((tq = taskq_create(KZT_TASKQ_TEST1_NAME, 1, 0, 0, 0, 0)) == NULL) { | |
48 | kzt_vprint(file, KZT_TASKQ_TEST1_NAME, | |
49 | "Taskq '%s' create failed\n", | |
50 | KZT_TASKQ_TEST1_NAME); | |
51 | return -EINVAL; | |
52 | } | |
53 | ||
54 | tq_arg.flag = 0; | |
55 | tq_arg.id = 0; | |
56 | tq_arg.file = file; | |
57 | tq_arg.name = KZT_TASKQ_TEST1_NAME; | |
58 | ||
59 | kzt_vprint(file, KZT_TASKQ_TEST1_NAME, | |
60 | "Taskq '%s' function '%s' dispatching\n", | |
61 | tq_arg.name, sym2str(kzt_taskq_test1_func)); | |
62 | if ((id = taskq_dispatch(tq, kzt_taskq_test1_func, &tq_arg, 0)) == 0) { | |
63 | kzt_vprint(file, KZT_TASKQ_TEST1_NAME, | |
64 | "Taskq '%s' function '%s' dispatch failed\n", | |
65 | tq_arg.name, sym2str(kzt_taskq_test1_func)); | |
66 | taskq_destory(tq); | |
67 | return -EINVAL; | |
68 | } | |
69 | ||
70 | kzt_vprint(file, KZT_TASKQ_TEST1_NAME, "Taskq '%s' waiting\n", | |
71 | tq_arg.name); | |
72 | taskq_wait(tq); | |
73 | kzt_vprint(file, KZT_TASKQ_TEST1_NAME, "Taskq '%s' destroying\n", | |
74 | tq_arg.name); | |
75 | taskq_destory(tq); | |
76 | ||
77 | return (tq_arg.flag) ? 0 : -EINVAL; | |
78 | } | |
79 | ||
80 | /* Validation Test 2 - Create multiple taskq's, each with multiple tasks, | |
81 | * wait until all tasks complete, ensure all tasks ran properly and in the | |
82 | * the correct order, cleanup taskq's | |
83 | */ | |
84 | static void | |
85 | kzt_taskq_test2_func1(void *arg) | |
86 | { | |
87 | kzt_taskq_arg_t *tq_arg = (kzt_taskq_arg_t *)arg; | |
88 | ||
89 | ASSERT(tq_arg); | |
90 | kzt_vprint(tq_arg->file, KZT_TASKQ_TEST2_NAME, | |
91 | "Taskq '%s/%d' function '%s' flag = %d = %d * 2\n", | |
92 | tq_arg->name, tq_arg->id, | |
93 | sym2str(kzt_taskq_test2_func1), | |
94 | tq_arg->flag * 2, tq_arg->flag); | |
95 | tq_arg->flag *= 2; | |
96 | } | |
97 | ||
98 | static void | |
99 | kzt_taskq_test2_func2(void *arg) | |
100 | { | |
101 | kzt_taskq_arg_t *tq_arg = (kzt_taskq_arg_t *)arg; | |
102 | ||
103 | ASSERT(tq_arg); | |
104 | kzt_vprint(tq_arg->file, KZT_TASKQ_TEST2_NAME, | |
105 | "Taskq '%s/%d' function '%s' flag = %d = %d + 1\n", | |
106 | tq_arg->name, tq_arg->id, | |
107 | sym2str(kzt_taskq_test2_func2), | |
108 | tq_arg->flag + 1, tq_arg->flag); | |
109 | tq_arg->flag += 1; | |
110 | } | |
111 | ||
112 | #define TEST2_TASKQS 8 | |
113 | static int | |
114 | kzt_taskq_test2(struct file *file, void *arg) { | |
115 | taskq_t *tq[TEST2_TASKQS] = { NULL }; | |
116 | taskqid_t id; | |
117 | kzt_taskq_arg_t tq_args[TEST2_TASKQS]; | |
118 | int i, rc = 0; | |
119 | ||
120 | for (i = 0; i < TEST2_TASKQS; i++) { | |
121 | ||
122 | kzt_vprint(file, KZT_TASKQ_TEST2_NAME, "Taskq '%s/%d' " | |
123 | "creating\n", KZT_TASKQ_TEST2_NAME, i); | |
124 | if ((tq[i] = taskq_create(KZT_TASKQ_TEST2_NAME, | |
125 | 1, 0, 0, 0, 0)) == NULL) { | |
126 | kzt_vprint(file, KZT_TASKQ_TEST2_NAME, | |
127 | "Taskq '%s/%d' create failed\n", | |
128 | KZT_TASKQ_TEST2_NAME, i); | |
129 | rc = -EINVAL; | |
130 | break; | |
131 | } | |
132 | ||
133 | tq_args[i].flag = i; | |
134 | tq_args[i].id = i; | |
135 | tq_args[i].file = file; | |
136 | tq_args[i].name = KZT_TASKQ_TEST2_NAME; | |
137 | ||
138 | kzt_vprint(file, KZT_TASKQ_TEST2_NAME, | |
139 | "Taskq '%s/%d' function '%s' dispatching\n", | |
140 | tq_args[i].name, tq_args[i].id, | |
141 | sym2str(kzt_taskq_test2_func1)); | |
142 | if ((id = taskq_dispatch( | |
143 | tq[i], kzt_taskq_test2_func1, &tq_args[i], 0)) == 0) { | |
144 | kzt_vprint(file, KZT_TASKQ_TEST2_NAME, | |
145 | "Taskq '%s/%d' function '%s' dispatch " | |
146 | "failed\n", tq_args[i].name, tq_args[i].id, | |
147 | sym2str(kzt_taskq_test2_func1)); | |
148 | rc = -EINVAL; | |
149 | break; | |
150 | } | |
151 | ||
152 | kzt_vprint(file, KZT_TASKQ_TEST2_NAME, | |
153 | "Taskq '%s/%d' function '%s' dispatching\n", | |
154 | tq_args[i].name, tq_args[i].id, | |
155 | sym2str(kzt_taskq_test2_func2)); | |
156 | if ((id = taskq_dispatch( | |
157 | tq[i], kzt_taskq_test2_func2, &tq_args[i], 0)) == 0) { | |
158 | kzt_vprint(file, KZT_TASKQ_TEST2_NAME, | |
159 | "Taskq '%s/%d' function '%s' dispatch failed\n", | |
160 | tq_args[i].name, tq_args[i].id, | |
161 | sym2str(kzt_taskq_test2_func2)); | |
162 | rc = -EINVAL; | |
163 | break; | |
164 | } | |
165 | } | |
166 | ||
167 | /* When rc is set we're effectively just doing cleanup here, so | |
168 | * ignore new errors in that case. They just cause noise. */ | |
169 | for (i = 0; i < TEST2_TASKQS; i++) { | |
170 | if (tq[i] != NULL) { | |
171 | kzt_vprint(file, KZT_TASKQ_TEST2_NAME, | |
172 | "Taskq '%s/%d' waiting\n", | |
173 | tq_args[i].name, tq_args[i].id); | |
174 | taskq_wait(tq[i]); | |
175 | kzt_vprint(file, KZT_TASKQ_TEST2_NAME, | |
176 | "Taskq '%s/%d; destroying\n", | |
177 | tq_args[i].name, tq_args[i].id); | |
178 | taskq_destory(tq[i]); | |
179 | ||
180 | if (!rc && tq_args[i].flag != ((i * 2) + 1)) { | |
181 | kzt_vprint(file, KZT_TASKQ_TEST2_NAME, | |
182 | "Taskq '%s/%d' processed tasks " | |
183 | "out of order; %d != %d\n", | |
184 | tq_args[i].name, tq_args[i].id, | |
185 | tq_args[i].flag, i * 2 + 1); | |
186 | rc = -EINVAL; | |
187 | } else { | |
188 | kzt_vprint(file, KZT_TASKQ_TEST2_NAME, | |
189 | "Taskq '%s/%d' processed tasks " | |
190 | "in the correct order; %d == %d\n", | |
191 | tq_args[i].name, tq_args[i].id, | |
192 | tq_args[i].flag, i * 2 + 1); | |
193 | } | |
194 | } | |
195 | } | |
196 | ||
197 | return rc; | |
198 | } | |
199 | ||
200 | kzt_subsystem_t * | |
201 | kzt_taskq_init(void) | |
202 | { | |
203 | kzt_subsystem_t *sub; | |
204 | ||
205 | sub = kmalloc(sizeof(*sub), GFP_KERNEL); | |
206 | if (sub == NULL) | |
207 | return NULL; | |
208 | ||
209 | memset(sub, 0, sizeof(*sub)); | |
210 | strncpy(sub->desc.name, KZT_TASKQ_NAME, KZT_NAME_SIZE); | |
211 | strncpy(sub->desc.desc, KZT_TASKQ_DESC, KZT_DESC_SIZE); | |
212 | INIT_LIST_HEAD(&sub->subsystem_list); | |
213 | INIT_LIST_HEAD(&sub->test_list); | |
214 | spin_lock_init(&sub->test_lock); | |
215 | sub->desc.id = KZT_SUBSYSTEM_TASKQ; | |
216 | ||
217 | KZT_TEST_INIT(sub, KZT_TASKQ_TEST1_NAME, KZT_TASKQ_TEST1_DESC, | |
218 | KZT_TASKQ_TEST1_ID, kzt_taskq_test1); | |
219 | KZT_TEST_INIT(sub, KZT_TASKQ_TEST2_NAME, KZT_TASKQ_TEST2_DESC, | |
220 | KZT_TASKQ_TEST2_ID, kzt_taskq_test2); | |
221 | ||
222 | return sub; | |
223 | } | |
224 | ||
225 | void | |
226 | kzt_taskq_fini(kzt_subsystem_t *sub) | |
227 | { | |
228 | ASSERT(sub); | |
229 | KZT_TEST_FINI(sub, KZT_TASKQ_TEST2_ID); | |
230 | KZT_TEST_FINI(sub, KZT_TASKQ_TEST1_ID); | |
231 | ||
232 | kfree(sub); | |
233 | } | |
234 | ||
235 | int | |
236 | kzt_taskq_id(void) { | |
237 | return KZT_SUBSYSTEM_TASKQ; | |
238 | } |