1219820Sjeff/*- 2219820Sjeff * Copyright (c) 2010 Isilon Systems, Inc. 3219820Sjeff * Copyright (c) 2010 iX Systems, Inc. 4219820Sjeff * Copyright (c) 2010 Panasas, Inc. 5219820Sjeff * All rights reserved. 6219820Sjeff * 7219820Sjeff * Redistribution and use in source and binary forms, with or without 8219820Sjeff * modification, are permitted provided that the following conditions 9219820Sjeff * are met: 10219820Sjeff * 1. Redistributions of source code must retain the above copyright 11219820Sjeff * notice unmodified, this list of conditions, and the following 12219820Sjeff * disclaimer. 13219820Sjeff * 2. Redistributions in binary form must reproduce the above copyright 14219820Sjeff * notice, this list of conditions and the following disclaimer in the 15219820Sjeff * documentation and/or other materials provided with the distribution. 16219820Sjeff * 17219820Sjeff * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18219820Sjeff * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19219820Sjeff * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20219820Sjeff * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21219820Sjeff * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22219820Sjeff * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23219820Sjeff * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24219820Sjeff * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25219820Sjeff * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26219820Sjeff * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27219820Sjeff */ 28219820Sjeff#ifndef _LINUX_MODULEPARAM_H_ 29219820Sjeff#define _LINUX_MODULEPARAM_H_ 30219820Sjeff 31219820Sjeff#include <linux/types.h> 32219820Sjeff 33219820Sjeff/* 34219820Sjeff * These are presently not hooked up to anything. In linux the parameters 35219820Sjeff * can be set when modules are loaded. On FreeBSD these could be mapped 36219820Sjeff * to kenv in the future. 37219820Sjeff */ 38219820Sjeffstruct kernel_param; 39219820Sjeff 40219820Sjefftypedef int (*param_set_fn)(const char *val, struct kernel_param *kp); 41219820Sjefftypedef int (*param_get_fn)(char *buffer, struct kernel_param *kp); 42219820Sjeff 43219820Sjeffstruct kernel_param { 44219820Sjeff const char *name; 45219820Sjeff u16 perm; 46219820Sjeff u16 flags; 47219820Sjeff param_set_fn set; 48219820Sjeff param_get_fn get; 49219820Sjeff union { 50219820Sjeff void *arg; 51219820Sjeff struct kparam_string *str; 52219820Sjeff struct kparam_array *arr; 53219820Sjeff } un; 54219820Sjeff}; 55219820Sjeff 56219820Sjeff#define KPARAM_ISBOOL 2 57219820Sjeff 58219820Sjeffstruct kparam_string { 59219820Sjeff unsigned int maxlen; 60219820Sjeff char *string; 61219820Sjeff}; 62219820Sjeff 63219820Sjeffstruct kparam_array 64219820Sjeff{ 65219820Sjeff unsigned int max; 66219820Sjeff unsigned int *num; 67219820Sjeff param_set_fn set; 68219820Sjeff param_get_fn get; 69219820Sjeff unsigned int elemsize; 70219820Sjeff void *elem; 71219820Sjeff}; 72219820Sjeff 73219820Sjeffstatic inline void 74219820Sjeffparam_sysinit(struct kernel_param *param) 75219820Sjeff{ 76219820Sjeff} 77219820Sjeff 78219820Sjeff#define module_param_call(name, set, get, arg, perm) \ 79219820Sjeff static struct kernel_param __param_##name = \ 80219820Sjeff { #name, perm, 0, set, get, { arg } }; \ 81219820Sjeff SYSINIT(name##_param_sysinit, SI_SUB_DRIVERS, SI_ORDER_FIRST, \ 82219820Sjeff param_sysinit, &__param_##name); 83219820Sjeff 84219820Sjeff#define module_param_named(name, var, type, mode) \ 85219820Sjeff module_param_call(name, param_set_##type, param_get_##type, &var, mode) 86219820Sjeff 87219820Sjeff#define module_param(var, type, mode) \ 88219820Sjeff module_param_named(var, var, type, mode) 89219820Sjeff 90219820Sjeff#define MODULE_PARM_DESC(name, desc) 91219820Sjeff 92219820Sjeffstatic inline int 93219820Sjeffparam_set_byte(const char *val, struct kernel_param *kp) 94219820Sjeff{ 95219820Sjeff 96219820Sjeff return 0; 97219820Sjeff} 98219820Sjeff 99219820Sjeffstatic inline int 100219820Sjeffparam_get_byte(char *buffer, struct kernel_param *kp) 101219820Sjeff{ 102219820Sjeff 103219820Sjeff return 0; 104219820Sjeff} 105219820Sjeff 106219820Sjeff 107219820Sjeffstatic inline int 108219820Sjeffparam_set_short(const char *val, struct kernel_param *kp) 109219820Sjeff{ 110219820Sjeff 111219820Sjeff return 0; 112219820Sjeff} 113219820Sjeff 114219820Sjeffstatic inline int 115219820Sjeffparam_get_short(char *buffer, struct kernel_param *kp) 116219820Sjeff{ 117219820Sjeff 118219820Sjeff return 0; 119219820Sjeff} 120219820Sjeff 121219820Sjeff 122219820Sjeffstatic inline int 123219820Sjeffparam_set_ushort(const char *val, struct kernel_param *kp) 124219820Sjeff{ 125219820Sjeff 126219820Sjeff return 0; 127219820Sjeff} 128219820Sjeff 129219820Sjeffstatic inline int 130219820Sjeffparam_get_ushort(char *buffer, struct kernel_param *kp) 131219820Sjeff{ 132219820Sjeff 133219820Sjeff return 0; 134219820Sjeff} 135219820Sjeff 136219820Sjeff 137219820Sjeffstatic inline int 138219820Sjeffparam_set_int(const char *val, struct kernel_param *kp) 139219820Sjeff{ 140219820Sjeff 141219820Sjeff return 0; 142219820Sjeff} 143219820Sjeff 144219820Sjeffstatic inline int 145219820Sjeffparam_get_int(char *buffer, struct kernel_param *kp) 146219820Sjeff{ 147219820Sjeff 148219820Sjeff return 0; 149219820Sjeff} 150219820Sjeff 151219820Sjeff 152219820Sjeffstatic inline int 153219820Sjeffparam_set_uint(const char *val, struct kernel_param *kp) 154219820Sjeff{ 155219820Sjeff 156219820Sjeff return 0; 157219820Sjeff} 158219820Sjeff 159219820Sjeffstatic inline int 160219820Sjeffparam_get_uint(char *buffer, struct kernel_param *kp) 161219820Sjeff{ 162219820Sjeff 163219820Sjeff return 0; 164219820Sjeff} 165219820Sjeff 166219820Sjeff 167219820Sjeffstatic inline int 168219820Sjeffparam_set_long(const char *val, struct kernel_param *kp) 169219820Sjeff{ 170219820Sjeff 171219820Sjeff return 0; 172219820Sjeff} 173219820Sjeff 174219820Sjeffstatic inline int 175219820Sjeffparam_get_long(char *buffer, struct kernel_param *kp) 176219820Sjeff{ 177219820Sjeff 178219820Sjeff return 0; 179219820Sjeff} 180219820Sjeff 181219820Sjeff 182219820Sjeffstatic inline int 183219820Sjeffparam_set_ulong(const char *val, struct kernel_param *kp) 184219820Sjeff{ 185219820Sjeff 186219820Sjeff return 0; 187219820Sjeff} 188219820Sjeff 189219820Sjeffstatic inline int 190219820Sjeffparam_get_ulong(char *buffer, struct kernel_param *kp) 191219820Sjeff{ 192219820Sjeff 193219820Sjeff return 0; 194219820Sjeff} 195219820Sjeff 196219820Sjeff 197219820Sjeffstatic inline int 198219820Sjeffparam_set_charp(const char *val, struct kernel_param *kp) 199219820Sjeff{ 200219820Sjeff 201219820Sjeff return 0; 202219820Sjeff} 203219820Sjeff 204219820Sjeffstatic inline int 205219820Sjeffparam_get_charp(char *buffer, struct kernel_param *kp) 206219820Sjeff{ 207219820Sjeff 208219820Sjeff return 0; 209219820Sjeff} 210219820Sjeff 211219820Sjeff 212219820Sjeffstatic inline int 213219820Sjeffparam_set_bool(const char *val, struct kernel_param *kp) 214219820Sjeff{ 215219820Sjeff 216219820Sjeff return 0; 217219820Sjeff} 218219820Sjeff 219219820Sjeffstatic inline int 220219820Sjeffparam_get_bool(char *buffer, struct kernel_param *kp) 221219820Sjeff{ 222219820Sjeff 223219820Sjeff return 0; 224219820Sjeff} 225219820Sjeff 226219820Sjeff#endif /* _LINUX_MODULEPARAM_H_ */ 227