1 /*-
2 * Copyright (c) 2010 Isilon Systems, Inc.
3 * Copyright (c) 2010 iX Systems, Inc.
4 * Copyright (c) 2010 Panasas, Inc.
5 * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice unmodified, this list of conditions, and the following
13 * disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 * $FreeBSD$
30 */
31 #ifndef _LINUXKPI_LINUX_MODULE_H_
32 #define _LINUXKPI_LINUX_MODULE_H_
33
34 #include <sys/cdefs.h>
35 #include <sys/kernel.h>
36 #include <sys/types.h>
37
38 #include <linux/list.h>
39 #include <linux/compiler.h>
40 #include <linux/moduleparam.h>
41 #include "linux/kernel.h"
42
43 #define MODULE_AUTHOR(name)
44 #define MODULE_DESCRIPTION(name)
45 #define MODULE_INFO(tag, info)
46 #define MODULE_FIRMWARE(firmware)
47 #define MODULE_VERSION(version)
48 #define MODULE_SUPPORTED_DEVICE(name)
49 #define MODULE_IMPORT_NS(_name)
50
51 struct module {
52 };
53
54 #define THIS_MODULE ((struct module *)0)
55
56 #define __MODULE_STRING(x) __stringify(x)
57
58 /* OFED pre-module initialization */
59 #define SI_SUB_OFED_PREINIT (SI_SUB_ROOT_CONF - 2)
60 /* OFED default module initialization */
61 #define SI_SUB_OFED_MODINIT (SI_SUB_ROOT_CONF - 1)
62 #define SI_SUB_POST_CORE_INIT (SI_SUB_DRIVERS + 1)
63 #define SI_SUB_ARCH_INIT (SI_SUB_DRIVERS + 2)
64 #define SI_SUB_SUBSYS_INIT (SI_SUB_DRIVERS + 3)
65
66 static inline void
_module_run(void * arg)67 _module_run(void *arg)
68 {
69 int (*fn)(void);
70 fn = arg;
71 if (fn == NULL) {
72 PRINTK("_module_run null ptr! \n");
73 return;
74 }
75 int ret = fn();
76 if (ret) {
77 PRINTK("_module_run function callback ret:%d! \n", ret);
78 }
79 }
80
81 #define module_init(fn) \
82 SYSINIT(fn, SI_SUB_OFED_MODINIT, SI_ORDER_FIRST, _module_run, (fn))
83
84 #define module_exit(fn) \
85 SYSUNINIT(fn, SI_SUB_OFED_MODINIT, SI_ORDER_SECOND, _module_run, (fn))
86
87 /*
88 * The following two macros are a workaround for not having a module
89 * load and unload order resolver:
90 */
91 #define module_init_order(fn, order) \
92 SYSINIT(fn, SI_SUB_OFED_MODINIT, (order), _module_run, (fn))
93
94 #define module_exit_order(fn, order) \
95 SYSUNINIT(fn, SI_SUB_OFED_MODINIT, (order), _module_run, (fn))
96
97 #define module_get(module)
98 #define module_put(module)
99 #define try_module_get(module) 1
100
101 /*
102 * The sysinit table itself. Items are checked off as the are run.
103 * If we want to register new sysinit types, add them to newsysinit.
104 */
105 SET_DECLARE(sysinit_set, struct sysinit);
106 #define postcore_initcall(fn) SYSINIT(fn, SI_SUB_POST_CORE_INIT, SI_ORDER_FIRST, _module_run, (fn))
107 #define arch_initcall(fn) SYSINIT(fn, SI_SUB_ARCH_INIT, SI_ORDER_FIRST, _module_run, (fn))
108 #define subsys_initcall(fn) SYSINIT(fn, SI_SUB_SUBSYS_INIT, SI_ORDER_FIRST, _module_run, (fn))
109
mi_startup(enum sysinit_sub_id sub_id)110 static inline void mi_startup(enum sysinit_sub_id sub_id)
111 {
112 struct sysinit **sipp = NULL; /* system initialization*/
113 struct sysinit **xipp = NULL; /* interior loop of sort*/
114 struct sysinit *save = NULL; /* bubble*/
115 struct sysinit **sysinit = SET_BEGIN(sysinit_set);
116 struct sysinit **sysinit_end = SET_LIMIT(sysinit_set);
117
118 /*
119 * Perform a bubble sort of the system initialization objects by
120 * their subsystem (primary key) and order (secondary key).
121 */
122 for (sipp = sysinit; sipp < sysinit_end; sipp++) {
123 for (xipp = sipp + 1; xipp < sysinit_end; xipp++) {
124 if ((*sipp)->subsystem < (*xipp)->subsystem ||
125 ((*sipp)->subsystem == (*xipp)->subsystem &&
126 (*sipp)->order <= (*xipp)->order))
127 continue; /* skip*/
128 save = *sipp;
129 *sipp = *xipp;
130 *xipp = save;
131 }
132 }
133
134 /*
135 * Traverse the (now) ordered list of system initialization tasks.
136 * Perform each task, and continue on to the next task.
137 */
138 for (sipp = sysinit; sipp < sysinit_end; sipp++) {
139 if ((*sipp)->subsystem > sub_id) {
140 break;
141 }
142 /* Call function */
143 (*((*sipp)->func))((*sipp)->udata);
144 }
145 }
146
147 #endif /* _LINUXKPI_LINUX_MODULE_H_ */
148