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1 | /*****************************************************************************\ |
2 | * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC. | |
3 | * Copyright (C) 2007 The Regents of the University of California. | |
4 | * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER). | |
5 | * Written by Brian Behlendorf <behlendorf1@llnl.gov>. | |
715f6251 | 6 | * UCRL-CODE-235197 |
7 | * | |
716154c5 BB |
8 | * This file is part of the SPL, Solaris Porting Layer. |
9 | * For details, see <http://github.com/behlendorf/spl/>. | |
10 | * | |
11 | * The SPL is free software; you can redistribute it and/or modify it | |
12 | * under the terms of the GNU General Public License as published by the | |
13 | * Free Software Foundation; either version 2 of the License, or (at your | |
14 | * option) any later version. | |
715f6251 | 15 | * |
716154c5 | 16 | * The SPL is distributed in the hope that it will be useful, but WITHOUT |
715f6251 | 17 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
18 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
19 | * for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License along | |
716154c5 BB |
22 | * with the SPL. If not, see <http://www.gnu.org/licenses/>. |
23 | \*****************************************************************************/ | |
715f6251 | 24 | |
7c50328b | 25 | #ifndef _SPLAT_INTERNAL_H |
26 | #define _SPLAT_INTERNAL_H | |
27 | ||
28 | #include <linux/kernel.h> | |
29 | #include <linux/module.h> | |
30 | #include <linux/string.h> | |
31 | #include <linux/errno.h> | |
32 | #include <linux/slab.h> | |
33 | #include <linux/sched.h> | |
34 | #include <linux/elf.h> | |
35 | #include <linux/limits.h> | |
36 | #include <linux/version.h> | |
37 | #include <linux/vmalloc.h> | |
38 | #include <linux/module.h> | |
39 | #include <linux/device.h> | |
40 | #include <linux/list.h> | |
ea3e6ca9 | 41 | #include <linux/swap.h> |
e811949a | 42 | #include <linux/delay.h> |
86de8532 | 43 | |
7c50328b | 44 | #include <asm/ioctls.h> |
45 | #include <asm/uaccess.h> | |
46 | #include <stdarg.h> | |
47 | ||
23f28c4f | 48 | #include <sys/callb.h> |
49 | #include <sys/condvar.h> | |
50 | #include <sys/cred.h> | |
51 | #include <sys/sysmacros.h> | |
52 | #include <sys/kmem.h> | |
53 | #include <sys/kstat.h> | |
54 | #include <sys/mutex.h> | |
55 | #include <sys/random.h> | |
56 | #include <sys/rwlock.h> | |
57 | #include <sys/taskq.h> | |
58 | #include <sys/thread.h> | |
59 | #include <sys/time.h> | |
60 | #include <sys/timer.h> | |
61 | #include <sys/types.h> | |
9490c148 | 62 | #include <sys/kobj.h> |
9f4c835a | 63 | #include <sys/atomic.h> |
d702c04f | 64 | #include <sys/list.h> |
b871b8cd | 65 | #include <sys/sunddi.h> |
46c685d0 | 66 | #include <linux/cdev.h> |
23f28c4f | 67 | |
46c685d0 | 68 | #include "spl-device.h" |
596e65b4 | 69 | #include "splat-ctl.h" |
7c50328b | 70 | |
71 | #define SPLAT_SUBSYSTEM_INIT(type) \ | |
8d0f1ee9 | 72 | ({ splat_subsystem_t *_sub_; \ |
7c50328b | 73 | \ |
8d0f1ee9 | 74 | _sub_ = (splat_subsystem_t *)splat_##type##_init(); \ |
7c50328b | 75 | if (_sub_ == NULL) { \ |
8d0f1ee9 | 76 | printk(KERN_ERR "splat: Error initializing: " #type "\n"); \ |
7c50328b | 77 | } else { \ |
8d0f1ee9 | 78 | spin_lock(&splat_module_lock); \ |
79 | list_add_tail(&(_sub_->subsystem_list), \ | |
7c50328b | 80 | &splat_module_list); \ |
8d0f1ee9 | 81 | spin_unlock(&splat_module_lock); \ |
7c50328b | 82 | } \ |
83 | }) | |
84 | ||
85 | #define SPLAT_SUBSYSTEM_FINI(type) \ | |
8d0f1ee9 | 86 | ({ splat_subsystem_t *_sub_, *_tmp_; \ |
7c50328b | 87 | int _id_, _flag_ = 0; \ |
88 | \ | |
8d0f1ee9 | 89 | _id_ = splat_##type##_id(); \ |
90 | spin_lock(&splat_module_lock); \ | |
7c50328b | 91 | list_for_each_entry_safe(_sub_, _tmp_, &splat_module_list, \ |
92 | subsystem_list) { \ | |
93 | if (_sub_->desc.id == _id_) { \ | |
94 | list_del_init(&(_sub_->subsystem_list)); \ | |
8d0f1ee9 | 95 | spin_unlock(&splat_module_lock); \ |
96 | splat_##type##_fini(_sub_); \ | |
7c50328b | 97 | spin_lock(&splat_module_lock); \ |
98 | _flag_ = 1; \ | |
99 | } \ | |
100 | } \ | |
8d0f1ee9 | 101 | spin_unlock(&splat_module_lock); \ |
7c50328b | 102 | \ |
103 | if (!_flag_) \ | |
8d0f1ee9 | 104 | printk(KERN_ERR "splat: Error finalizing: " #type "\n"); \ |
7c50328b | 105 | }) |
106 | ||
107 | #define SPLAT_TEST_INIT(sub, n, d, tid, func) \ | |
8d0f1ee9 | 108 | ({ splat_test_t *_test_; \ |
7c50328b | 109 | \ |
8d0f1ee9 | 110 | _test_ = (splat_test_t *)kmalloc(sizeof(*_test_), GFP_KERNEL); \ |
7c50328b | 111 | if (_test_ == NULL) { \ |
8d0f1ee9 | 112 | printk(KERN_ERR "splat: Error initializing: " n "/" #tid" \n");\ |
7c50328b | 113 | } else { \ |
114 | memset(_test_, 0, sizeof(*_test_)); \ | |
ac569b72 | 115 | strncpy(_test_->desc.name, n, SPLAT_NAME_SIZE-1); \ |
116 | strncpy(_test_->desc.desc, d, SPLAT_DESC_SIZE-1); \ | |
7c50328b | 117 | _test_->desc.id = tid; \ |
118 | _test_->test = func; \ | |
119 | INIT_LIST_HEAD(&(_test_->test_list)); \ | |
120 | spin_lock(&((sub)->test_lock)); \ | |
121 | list_add_tail(&(_test_->test_list),&((sub)->test_list));\ | |
122 | spin_unlock(&((sub)->test_lock)); \ | |
123 | } \ | |
124 | }) | |
125 | ||
126 | #define SPLAT_TEST_FINI(sub, tid) \ | |
8d0f1ee9 | 127 | ({ splat_test_t *_test_, *_tmp_; \ |
7c50328b | 128 | int _flag_ = 0; \ |
129 | \ | |
130 | spin_lock(&((sub)->test_lock)); \ | |
131 | list_for_each_entry_safe(_test_, _tmp_, \ | |
132 | &((sub)->test_list), test_list) { \ | |
133 | if (_test_->desc.id == tid) { \ | |
134 | list_del_init(&(_test_->test_list)); \ | |
135 | _flag_ = 1; \ | |
136 | } \ | |
137 | } \ | |
138 | spin_unlock(&((sub)->test_lock)); \ | |
139 | \ | |
140 | if (!_flag_) \ | |
8d0f1ee9 | 141 | printk(KERN_ERR "splat: Error finalizing: " #tid "\n"); \ |
7c50328b | 142 | }) |
143 | ||
144 | typedef int (*splat_test_func_t)(struct file *, void *); | |
145 | ||
146 | typedef struct splat_test { | |
147 | struct list_head test_list; | |
148 | splat_user_t desc; | |
149 | splat_test_func_t test; | |
150 | } splat_test_t; | |
151 | ||
152 | typedef struct splat_subsystem { | |
153 | struct list_head subsystem_list;/* List had to chain entries */ | |
154 | splat_user_t desc; | |
155 | spinlock_t test_lock; | |
156 | struct list_head test_list; | |
157 | } splat_subsystem_t; | |
158 | ||
159 | #define SPLAT_INFO_BUFFER_SIZE 65536 | |
160 | #define SPLAT_INFO_BUFFER_REDZONE 256 | |
161 | ||
162 | typedef struct splat_info { | |
163 | spinlock_t info_lock; | |
164 | int info_size; | |
165 | char *info_buffer; | |
166 | char *info_head; /* Internal kernel use only */ | |
167 | } splat_info_t; | |
168 | ||
169 | #define sym2str(sym) (char *)(#sym) | |
170 | ||
171 | #define splat_print(file, format, args...) \ | |
d6a26c6a | 172 | ({ splat_info_t *_info_ = (splat_info_t *)file->private_data; \ |
7c50328b | 173 | int _rc_; \ |
174 | \ | |
175 | ASSERT(_info_); \ | |
176 | ASSERT(_info_->info_buffer); \ | |
177 | \ | |
178 | spin_lock(&_info_->info_lock); \ | |
179 | \ | |
180 | /* Don't allow the kernel to start a write in the red zone */ \ | |
181 | if ((int)(_info_->info_head - _info_->info_buffer) > \ | |
182 | (SPLAT_INFO_BUFFER_SIZE - SPLAT_INFO_BUFFER_REDZONE)) { \ | |
183 | _rc_ = -EOVERFLOW; \ | |
184 | } else { \ | |
185 | _rc_ = sprintf(_info_->info_head, format, args); \ | |
186 | if (_rc_ >= 0) \ | |
187 | _info_->info_head += _rc_; \ | |
188 | } \ | |
189 | \ | |
190 | spin_unlock(&_info_->info_lock); \ | |
191 | _rc_; \ | |
192 | }) | |
193 | ||
d6a26c6a | 194 | #define splat_vprint(file, test, format, args...) \ |
7c50328b | 195 | splat_print(file, "%*s: " format, SPLAT_NAME_SIZE, test, args) |
196 | ||
e811949a BB |
197 | #define splat_locked_test(lock, test) \ |
198 | ({ \ | |
199 | int _rc_; \ | |
200 | spin_lock(lock); \ | |
201 | _rc_ = (test) ? 1 : 0; \ | |
202 | spin_unlock(lock); \ | |
203 | _rc_; \ | |
204 | }) | |
205 | ||
d702c04f BB |
206 | splat_subsystem_t *splat_condvar_init(void); |
207 | splat_subsystem_t *splat_kmem_init(void); | |
208 | splat_subsystem_t *splat_mutex_init(void); | |
209 | splat_subsystem_t *splat_krng_init(void); | |
210 | splat_subsystem_t *splat_rwlock_init(void); | |
211 | splat_subsystem_t *splat_taskq_init(void); | |
212 | splat_subsystem_t *splat_thread_init(void); | |
213 | splat_subsystem_t *splat_time_init(void); | |
214 | splat_subsystem_t *splat_vnode_init(void); | |
215 | splat_subsystem_t *splat_kobj_init(void); | |
216 | splat_subsystem_t *splat_atomic_init(void); | |
217 | splat_subsystem_t *splat_list_init(void); | |
b871b8cd | 218 | splat_subsystem_t *splat_generic_init(void); |
ec7d53e9 | 219 | splat_subsystem_t *splat_cred_init(void); |
7c50328b | 220 | |
221 | void splat_condvar_fini(splat_subsystem_t *); | |
222 | void splat_kmem_fini(splat_subsystem_t *); | |
223 | void splat_mutex_fini(splat_subsystem_t *); | |
224 | void splat_krng_fini(splat_subsystem_t *); | |
225 | void splat_rwlock_fini(splat_subsystem_t *); | |
226 | void splat_taskq_fini(splat_subsystem_t *); | |
227 | void splat_thread_fini(splat_subsystem_t *); | |
228 | void splat_time_fini(splat_subsystem_t *); | |
4b171585 | 229 | void splat_vnode_fini(splat_subsystem_t *); |
9490c148 | 230 | void splat_kobj_fini(splat_subsystem_t *); |
9f4c835a | 231 | void splat_atomic_fini(splat_subsystem_t *); |
d702c04f | 232 | void splat_list_fini(splat_subsystem_t *); |
b871b8cd | 233 | void splat_generic_fini(splat_subsystem_t *); |
ec7d53e9 | 234 | void splat_cred_fini(splat_subsystem_t *); |
7c50328b | 235 | |
236 | int splat_condvar_id(void); | |
237 | int splat_kmem_id(void); | |
238 | int splat_mutex_id(void); | |
239 | int splat_krng_id(void); | |
240 | int splat_rwlock_id(void); | |
241 | int splat_taskq_id(void); | |
242 | int splat_thread_id(void); | |
243 | int splat_time_id(void); | |
4b171585 | 244 | int splat_vnode_id(void); |
9490c148 | 245 | int splat_kobj_id(void); |
9f4c835a | 246 | int splat_atomic_id(void); |
d702c04f | 247 | int splat_list_id(void); |
b871b8cd | 248 | int splat_generic_id(void); |
ec7d53e9 | 249 | int splat_cred_id(void); |
7c50328b | 250 | |
251 | #endif /* _SPLAT_INTERNAL_H */ |