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 * Copyright (c) 2017 François Tigeot <ftigeot@wolfpond.org>
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice unmodified, this list of conditions, and the following
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 #ifndef _LINUX_MODULEPARAM_H_
32 #define _LINUX_MODULEPARAM_H_
34 #include <linux/init.h>
35 #include <linux/stringify.h>
36 #include <linux/kernel.h>
39 * These are presently not hooked up to anything. In linux the parameters
40 * can be set when modules are loaded. On FreeBSD these could be mapped
41 * to kenv in the future.
45 typedef int (*param_set_fn)(const char *val, struct kernel_param *kp);
46 typedef int (*param_get_fn)(char *buffer, struct kernel_param *kp);
56 struct kparam_string *str;
57 struct kparam_array *arr;
61 #define KPARAM_ISBOOL 2
63 struct kparam_string {
74 unsigned int elemsize;
79 param_sysinit(struct kernel_param *param)
83 #define module_param_call(name, set, get, arg, perm) \
84 static struct kernel_param __param_##name = \
85 { #name, perm, 0, set, get, { arg } }; \
86 SYSINIT(name##_param_sysinit, SI_SUB_DRIVERS, SI_ORDER_FIRST, \
87 param_sysinit, &__param_##name);
89 #define module_param_string(name, string, len, perm)
91 #define module_param_named(name, var, type, mode) \
92 module_param_call(name, param_set_##type, param_get_##type, &var, mode)
94 #define module_param_named_unsafe(name, var, type, mode) \
95 module_param_call(name, param_set_##type, param_get_##type, &var, mode)
97 #define module_param(var, type, mode) \
98 module_param_named(var, var, type, mode)
100 #define module_param_array(var, type, addr_argc, mode) \
101 module_param_named(var, var, type, mode)
103 #define module_param_unsafe(name, type, perm)
105 #define MODULE_PARM_DESC(name, desc)
108 param_set_byte(const char *val, struct kernel_param *kp)
115 param_get_byte(char *buffer, struct kernel_param *kp)
123 param_set_short(const char *val, struct kernel_param *kp)
130 param_get_short(char *buffer, struct kernel_param *kp)
138 param_set_ushort(const char *val, struct kernel_param *kp)
145 param_get_ushort(char *buffer, struct kernel_param *kp)
153 param_set_int(const char *val, struct kernel_param *kp)
160 param_get_int(char *buffer, struct kernel_param *kp)
168 param_set_uint(const char *val, struct kernel_param *kp)
175 param_get_uint(char *buffer, struct kernel_param *kp)
183 param_set_long(const char *val, struct kernel_param *kp)
190 param_get_long(char *buffer, struct kernel_param *kp)
198 param_set_ulong(const char *val, struct kernel_param *kp)
205 param_get_ulong(char *buffer, struct kernel_param *kp)
213 param_set_charp(const char *val, struct kernel_param *kp)
220 param_get_charp(char *buffer, struct kernel_param *kp)
228 param_set_bool(const char *val, struct kernel_param *kp)
235 param_get_bool(char *buffer, struct kernel_param *kp)
241 #endif /* _LINUX_MODULEPARAM_H_ */