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27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/types.h>
31 #include <sys/cdefs.h>
32 #include <sys/param.h>
33 #include <sys/systm.h>
35 #include <sys/callout.h>
36 #include <sys/module.h>
37 #include <sys/kernel.h>
40 #include <sys/malloc.h>
41 #include <sys/mutex.h>
43 #include <sys/sysctl.h>
44 #include <sys/taskqueue.h>
46 #include <sys/queue.h>
47 #include <tests/kern_testfrwk.h>
49 #include <machine/cpu.h>
52 struct kern_test_list {
53 TAILQ_ENTRY(kern_test_list) next;
54 char name[TEST_NAME_LEN];
58 TAILQ_HEAD(ktestlist, kern_test_list);
60 struct kern_test_entry {
61 TAILQ_ENTRY(kern_test_entry) next;
62 struct kern_test_list *kt_e;
63 struct kern_test kt_data;
66 TAILQ_HEAD(ktestqueue, kern_test_entry);
68 MALLOC_DEFINE(M_KTFRWK, "kern_tfrwk", "Kernel Test Framework");
70 struct taskqueue *kfrwk_tq;
71 struct task kfrwk_que;
72 struct ktestlist kfrwk_testlist;
73 struct ktestqueue kfrwk_testq;
78 struct kern_totfrwk kfrwk;
79 static int ktest_frwk_inited = 0;
81 #define KTFRWK_MUTEX_INIT() mtx_init(&kfrwk.kfrwk_mtx, "kern_test_frwk", "tfrwk", MTX_DEF)
83 #define KTFRWK_DESTROY() mtx_destroy(&kfrwk.kfrwk_mtx)
85 #define KTFRWK_LOCK() mtx_lock(&kfrwk.kfrwk_mtx)
87 #define KTFRWK_UNLOCK() mtx_unlock(&kfrwk.kfrwk_mtx)
90 kfrwk_task(void *context, int pending)
92 struct kern_totfrwk *tf;
93 struct kern_test_entry *wk;
95 struct kern_test kt_data;
98 memset(&kt_data, 0, sizeof(kt_data));
100 tf = (struct kern_totfrwk *)context;
102 wk = TAILQ_FIRST(&tf->kfrwk_testq);
104 wk->kt_data.tot_threads_running--;
106 memcpy(&kt_data, &wk->kt_data, sizeof(kt_data));
107 if (wk->kt_data.tot_threads_running == 0) {
108 TAILQ_REMOVE(&tf->kfrwk_testq, wk, next);
111 /* Wake one of my colleages up to help too */
112 taskqueue_enqueue(tf->kfrwk_tq, &tf->kfrwk_que);
115 ktf = wk->kt_e->func;
119 if (wk && free_mem) {
122 /* Execute the test */
127 atomic_add_int(&tf->kfrwk_waiting, 1);
131 kerntest_frwk_init(void)
133 u_int ncpus = mp_ncpus ? mp_ncpus : MAXCPU;
136 TAILQ_INIT(&kfrwk.kfrwk_testq);
137 TAILQ_INIT(&kfrwk.kfrwk_testlist);
138 /* Now lets start up a number of tasks to do the work */
139 TASK_INIT(&kfrwk.kfrwk_que, 0, kfrwk_task, &kfrwk);
140 kfrwk.kfrwk_tq = taskqueue_create_fast("sbtls_task", M_NOWAIT,
141 taskqueue_thread_enqueue, &kfrwk.kfrwk_tq);
142 if (kfrwk.kfrwk_tq == NULL) {
143 printf("Can't start taskqueue for Kernel Test Framework\n");
144 panic("Taskqueue init fails for kfrwk");
146 taskqueue_start_threads(&kfrwk.kfrwk_tq, ncpus, PI_NET, "[kt_frwk task]");
147 kfrwk.kfrwk_waiting = ncpus;
148 ktest_frwk_inited = 1;
153 kerntest_frwk_fini(void)
156 if (!TAILQ_EMPTY(&kfrwk.kfrwk_testlist)) {
157 /* Still modules registered */
161 ktest_frwk_inited = 0;
163 taskqueue_free(kfrwk.kfrwk_tq);
164 /* Ok lets destroy the mutex on the way outs */
170 static int kerntest_execute(SYSCTL_HANDLER_ARGS);
172 SYSCTL_NODE(_kern, OID_AUTO, testfrwk, CTLFLAG_RW, 0, "Kernel Test Framework");
173 SYSCTL_PROC(_kern_testfrwk, OID_AUTO, runtest, (CTLTYPE_STRUCT | CTLFLAG_RW),
174 0, 0, kerntest_execute, "IU", "Execute a kernel test");
177 kerntest_execute(SYSCTL_HANDLER_ARGS)
180 struct kern_test_list *li, *te = NULL;
181 struct kern_test_entry *kte = NULL;
184 if (ktest_frwk_inited == 0) {
187 /* Find the entry if possible */
188 error = SYSCTL_IN(req, &kt, sizeof(struct kern_test));
192 if (kt.num_threads <= 0) {
195 /* Grab some memory */
196 kte = malloc(sizeof(struct kern_test_entry), M_KTFRWK, M_WAITOK);
202 TAILQ_FOREACH(li, &kfrwk.kfrwk_testlist, next) {
203 if (strcmp(li->name, kt.name) == 0) {
209 printf("Can't find the test %s\n", kt.name);
214 /* Ok we have a test item to run, can we? */
215 if (!TAILQ_EMPTY(&kfrwk.kfrwk_testq)) {
216 /* We don't know if there is enough threads */
221 if (kfrwk.kfrwk_waiting < kt.num_threads) {
226 kt.tot_threads_running = kt.num_threads;
227 /* Ok it looks like we can do it, lets get an entry */
229 memcpy(&kte->kt_data, &kt, sizeof(kt));
230 TAILQ_INSERT_TAIL(&kfrwk.kfrwk_testq, kte, next);
231 taskqueue_enqueue(kfrwk.kfrwk_tq, &kfrwk.kfrwk_que);
238 kern_testframework_register(const char *name, kerntfunc func)
241 struct kern_test_list *li, *te = NULL;
245 if (len >= TEST_NAME_LEN) {
248 te = malloc(sizeof(struct kern_test_list), M_KTFRWK, M_WAITOK);
254 /* First does it already exist? */
255 TAILQ_FOREACH(li, &kfrwk.kfrwk_testlist, next) {
256 if (strcmp(li->name, name) == 0) {
262 /* Ok we can do it, lets add it to the list */
264 strcpy(te->name, name);
265 TAILQ_INSERT_TAIL(&kfrwk.kfrwk_testlist, te, next);
272 kern_testframework_deregister(const char *name)
274 struct kern_test_list *li, *te = NULL;
275 u_int ncpus = mp_ncpus ? mp_ncpus : MAXCPU;
279 /* First does it already exist? */
280 TAILQ_FOREACH(li, &kfrwk.kfrwk_testlist, next) {
281 if (strcmp(li->name, name) == 0) {
287 /* It is not registered so no problem */
290 if (ncpus != kfrwk.kfrwk_waiting) {
291 /* We are busy executing something -- can't unload */
295 if (!TAILQ_EMPTY(&kfrwk.kfrwk_testq)) {
296 /* Something still to execute */
300 /* Ok we can remove the dude safely */
301 TAILQ_REMOVE(&kfrwk.kfrwk_testlist, te, next);
302 memset(te, 0, sizeof(struct kern_test_list));
310 kerntest_mod_init(module_t mod, int type, void *data)
316 err = kerntest_frwk_init();
320 if (TAILQ_EMPTY(&kfrwk.kfrwk_testlist)) {
328 err = kerntest_frwk_fini();
336 static moduledata_t kern_test_framework = {
337 .name = "kernel_testfrwk",
338 .evhand = kerntest_mod_init,
342 MODULE_VERSION(kern_testframework, 1);
343 DECLARE_MODULE(kern_testframework, kern_test_framework, SI_SUB_PSEUDO, SI_ORDER_ANY);