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2 * This file is part of the SPL: Solaris Porting Layer.
4 * Copyright (c) 2008 Lawrence Livermore National Security, LLC.
5 * Produced at Lawrence Livermore National Laboratory
7 * Brian Behlendorf <behlendorf1@llnl.gov>,
8 * Herb Wartens <wartens2@llnl.gov>,
9 * Jim Garlick <garlick@llnl.gov>
12 * This is free software; you can redistribute it and/or modify it
13 * under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * This is distributed in the hope that it will be useful, but WITHOUT
18 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
19 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
22 * You should have received a copy of the GNU General Public License along
23 * with this program; if not, write to the Free Software Foundation, Inc.,
24 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
27 #ifndef _SPLAT_INTERNAL_H
28 #define _SPLAT_INTERNAL_H
30 #include <linux/kernel.h>
31 #include <linux/module.h>
32 #include <linux/string.h>
33 #include <linux/errno.h>
34 #include <linux/slab.h>
35 #include <linux/sched.h>
36 #include <linux/elf.h>
37 #include <linux/limits.h>
38 #include <linux/version.h>
39 #include <linux/vmalloc.h>
40 #include <linux/module.h>
41 #include <linux/device.h>
42 #include <linux/list.h>
44 #include <asm/ioctls.h>
45 #include <asm/uaccess.h>
48 #include <sys/callb.h>
49 #include <sys/condvar.h>
51 #include <sys/sysmacros.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>
60 #include <sys/timer.h>
61 #include <sys/types.h>
63 #include <sys/atomic.h>
64 #include <linux/cdev.h>
66 #include <linux/file_compat.h>
67 #include <linux/list_compat.h>
68 #include <linux/time_compat.h>
69 #include <linux/bitops_compat.h>
71 #include "spl-device.h"
72 #include "splat-ctl.h"
74 #define SPLAT_SUBSYSTEM_INIT(type) \
75 ({ splat_subsystem_t *_sub_; \
77 _sub_ = (splat_subsystem_t *)splat_##type##_init(); \
78 if (_sub_ == NULL) { \
79 printk(KERN_ERR "splat: Error initializing: " #type "\n"); \
81 spin_lock(&splat_module_lock); \
82 list_add_tail(&(_sub_->subsystem_list), \
83 &splat_module_list); \
84 spin_unlock(&splat_module_lock); \
88 #define SPLAT_SUBSYSTEM_FINI(type) \
89 ({ splat_subsystem_t *_sub_, *_tmp_; \
90 int _id_, _flag_ = 0; \
92 _id_ = splat_##type##_id(); \
93 spin_lock(&splat_module_lock); \
94 list_for_each_entry_safe(_sub_, _tmp_, &splat_module_list, \
96 if (_sub_->desc.id == _id_) { \
97 list_del_init(&(_sub_->subsystem_list)); \
98 spin_unlock(&splat_module_lock); \
99 splat_##type##_fini(_sub_); \
100 spin_lock(&splat_module_lock); \
104 spin_unlock(&splat_module_lock); \
107 printk(KERN_ERR "splat: Error finalizing: " #type "\n"); \
110 #define SPLAT_TEST_INIT(sub, n, d, tid, func) \
111 ({ splat_test_t *_test_; \
113 _test_ = (splat_test_t *)kmalloc(sizeof(*_test_), GFP_KERNEL); \
114 if (_test_ == NULL) { \
115 printk(KERN_ERR "splat: Error initializing: " n "/" #tid" \n");\
117 memset(_test_, 0, sizeof(*_test_)); \
118 strncpy(_test_->desc.name, n, SPLAT_NAME_SIZE); \
119 strncpy(_test_->desc.desc, d, SPLAT_DESC_SIZE); \
120 _test_->desc.id = tid; \
121 _test_->test = func; \
122 INIT_LIST_HEAD(&(_test_->test_list)); \
123 spin_lock(&((sub)->test_lock)); \
124 list_add_tail(&(_test_->test_list),&((sub)->test_list));\
125 spin_unlock(&((sub)->test_lock)); \
129 #define SPLAT_TEST_FINI(sub, tid) \
130 ({ splat_test_t *_test_, *_tmp_; \
133 spin_lock(&((sub)->test_lock)); \
134 list_for_each_entry_safe(_test_, _tmp_, \
135 &((sub)->test_list), test_list) { \
136 if (_test_->desc.id == tid) { \
137 list_del_init(&(_test_->test_list)); \
141 spin_unlock(&((sub)->test_lock)); \
144 printk(KERN_ERR "splat: Error finalizing: " #tid "\n"); \
147 typedef int (*splat_test_func_t
)(struct file
*, void *);
149 typedef struct splat_test
{
150 struct list_head test_list
;
152 splat_test_func_t test
;
155 typedef struct splat_subsystem
{
156 struct list_head subsystem_list
;/* List had to chain entries */
158 spinlock_t test_lock
;
159 struct list_head test_list
;
162 #define SPLAT_INFO_BUFFER_SIZE 65536
163 #define SPLAT_INFO_BUFFER_REDZONE 256
165 typedef struct splat_info
{
166 spinlock_t info_lock
;
169 char *info_head
; /* Internal kernel use only */
172 #define sym2str(sym) (char *)(#sym)
174 #define splat_print(file, format, args...) \
175 ({ splat_info_t *_info_ = (splat_info_t *)file->private_data; \
179 ASSERT(_info_->info_buffer); \
181 spin_lock(&_info_->info_lock); \
183 /* Don't allow the kernel to start a write in the red zone */ \
184 if ((int)(_info_->info_head - _info_->info_buffer) > \
185 (SPLAT_INFO_BUFFER_SIZE - SPLAT_INFO_BUFFER_REDZONE)) { \
188 _rc_ = sprintf(_info_->info_head, format, args); \
190 _info_->info_head += _rc_; \
193 spin_unlock(&_info_->info_lock); \
197 #define splat_vprint(file, test, format, args...) \
198 splat_print(file, "%*s: " format, SPLAT_NAME_SIZE, test, args)
200 splat_subsystem_t
* splat_condvar_init(void);
201 splat_subsystem_t
* splat_kmem_init(void);
202 splat_subsystem_t
* splat_mutex_init(void);
203 splat_subsystem_t
* splat_krng_init(void);
204 splat_subsystem_t
* splat_rwlock_init(void);
205 splat_subsystem_t
* splat_taskq_init(void);
206 splat_subsystem_t
* splat_thread_init(void);
207 splat_subsystem_t
* splat_time_init(void);
208 splat_subsystem_t
* splat_vnode_init(void);
209 splat_subsystem_t
* splat_kobj_init(void);
210 splat_subsystem_t
* splat_atomic_init(void);
212 void splat_condvar_fini(splat_subsystem_t
*);
213 void splat_kmem_fini(splat_subsystem_t
*);
214 void splat_mutex_fini(splat_subsystem_t
*);
215 void splat_krng_fini(splat_subsystem_t
*);
216 void splat_rwlock_fini(splat_subsystem_t
*);
217 void splat_taskq_fini(splat_subsystem_t
*);
218 void splat_thread_fini(splat_subsystem_t
*);
219 void splat_time_fini(splat_subsystem_t
*);
220 void splat_vnode_fini(splat_subsystem_t
*);
221 void splat_kobj_fini(splat_subsystem_t
*);
222 void splat_atomic_fini(splat_subsystem_t
*);
224 int splat_condvar_id(void);
225 int splat_kmem_id(void);
226 int splat_mutex_id(void);
227 int splat_krng_id(void);
228 int splat_rwlock_id(void);
229 int splat_taskq_id(void);
230 int splat_thread_id(void);
231 int splat_time_id(void);
232 int splat_vnode_id(void);
233 int splat_kobj_id(void);
234 int splat_atomic_id(void);
236 #endif /* _SPLAT_INTERNAL_H */