1219820Sjeff/*- 2219820Sjeff * Copyright (c) 2010 Isilon Systems, Inc. 3219820Sjeff * Copyright (c) 2010 iX Systems, Inc. 4219820Sjeff * Copyright (c) 2010 Panasas, Inc. 5271127Shselasky * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd. 6219820Sjeff * All rights reserved. 7219820Sjeff * 8219820Sjeff * Redistribution and use in source and binary forms, with or without 9219820Sjeff * modification, are permitted provided that the following conditions 10219820Sjeff * are met: 11219820Sjeff * 1. Redistributions of source code must retain the above copyright 12219820Sjeff * notice unmodified, this list of conditions, and the following 13219820Sjeff * disclaimer. 14219820Sjeff * 2. Redistributions in binary form must reproduce the above copyright 15219820Sjeff * notice, this list of conditions and the following disclaimer in the 16219820Sjeff * documentation and/or other materials provided with the distribution. 17219820Sjeff * 18219820Sjeff * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19219820Sjeff * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20219820Sjeff * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21219820Sjeff * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22219820Sjeff * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23219820Sjeff * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24219820Sjeff * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25219820Sjeff * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26219820Sjeff * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27219820Sjeff * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28219820Sjeff */ 29271127Shselasky 30219820Sjeff#ifndef _LINUX_MODULEPARAM_H_ 31219820Sjeff#define _LINUX_MODULEPARAM_H_ 32219820Sjeff 33219820Sjeff#include <linux/types.h> 34219820Sjeff 35219820Sjeff/* 36219820Sjeff * These are presently not hooked up to anything. In linux the parameters 37219820Sjeff * can be set when modules are loaded. On FreeBSD these could be mapped 38219820Sjeff * to kenv in the future. 39219820Sjeff */ 40219820Sjeffstruct kernel_param; 41219820Sjeff 42219820Sjefftypedef int (*param_set_fn)(const char *val, struct kernel_param *kp); 43219820Sjefftypedef int (*param_get_fn)(char *buffer, struct kernel_param *kp); 44219820Sjeff 45219820Sjeffstruct kernel_param { 46219820Sjeff const char *name; 47219820Sjeff u16 perm; 48219820Sjeff u16 flags; 49219820Sjeff param_set_fn set; 50219820Sjeff param_get_fn get; 51219820Sjeff union { 52219820Sjeff void *arg; 53219820Sjeff struct kparam_string *str; 54219820Sjeff struct kparam_array *arr; 55219820Sjeff } un; 56219820Sjeff}; 57219820Sjeff 58219820Sjeff#define KPARAM_ISBOOL 2 59219820Sjeff 60219820Sjeffstruct kparam_string { 61219820Sjeff unsigned int maxlen; 62219820Sjeff char *string; 63219820Sjeff}; 64219820Sjeff 65219820Sjeffstruct kparam_array 66219820Sjeff{ 67219820Sjeff unsigned int max; 68219820Sjeff unsigned int *num; 69219820Sjeff param_set_fn set; 70219820Sjeff param_get_fn get; 71219820Sjeff unsigned int elemsize; 72219820Sjeff void *elem; 73219820Sjeff}; 74219820Sjeff 75219820Sjeffstatic inline void 76219820Sjeffparam_sysinit(struct kernel_param *param) 77219820Sjeff{ 78219820Sjeff} 79219820Sjeff 80219820Sjeff#define module_param_call(name, set, get, arg, perm) \ 81219820Sjeff static struct kernel_param __param_##name = \ 82219820Sjeff { #name, perm, 0, set, get, { arg } }; \ 83219820Sjeff SYSINIT(name##_param_sysinit, SI_SUB_DRIVERS, SI_ORDER_FIRST, \ 84219820Sjeff param_sysinit, &__param_##name); 85219820Sjeff 86271127Shselasky#define module_param_string(name, string, len, perm) 87271127Shselasky 88219820Sjeff#define module_param_named(name, var, type, mode) \ 89219820Sjeff module_param_call(name, param_set_##type, param_get_##type, &var, mode) 90219820Sjeff 91219820Sjeff#define module_param(var, type, mode) \ 92219820Sjeff module_param_named(var, var, type, mode) 93219820Sjeff 94255932Salfred#define module_param_array(var, type, addr_argc, mode) \ 95255932Salfred module_param_named(var, var, type, mode) 96255932Salfred 97219820Sjeff#define MODULE_PARM_DESC(name, desc) 98219820Sjeff 99219820Sjeffstatic inline int 100219820Sjeffparam_set_byte(const char *val, struct kernel_param *kp) 101219820Sjeff{ 102219820Sjeff 103219820Sjeff return 0; 104219820Sjeff} 105219820Sjeff 106219820Sjeffstatic inline int 107219820Sjeffparam_get_byte(char *buffer, struct kernel_param *kp) 108219820Sjeff{ 109219820Sjeff 110219820Sjeff return 0; 111219820Sjeff} 112219820Sjeff 113219820Sjeff 114219820Sjeffstatic inline int 115219820Sjeffparam_set_short(const char *val, struct kernel_param *kp) 116219820Sjeff{ 117219820Sjeff 118219820Sjeff return 0; 119219820Sjeff} 120219820Sjeff 121219820Sjeffstatic inline int 122219820Sjeffparam_get_short(char *buffer, struct kernel_param *kp) 123219820Sjeff{ 124219820Sjeff 125219820Sjeff return 0; 126219820Sjeff} 127219820Sjeff 128219820Sjeff 129219820Sjeffstatic inline int 130219820Sjeffparam_set_ushort(const char *val, struct kernel_param *kp) 131219820Sjeff{ 132219820Sjeff 133219820Sjeff return 0; 134219820Sjeff} 135219820Sjeff 136219820Sjeffstatic inline int 137219820Sjeffparam_get_ushort(char *buffer, struct kernel_param *kp) 138219820Sjeff{ 139219820Sjeff 140219820Sjeff return 0; 141219820Sjeff} 142219820Sjeff 143219820Sjeff 144219820Sjeffstatic inline int 145219820Sjeffparam_set_int(const char *val, struct kernel_param *kp) 146219820Sjeff{ 147219820Sjeff 148219820Sjeff return 0; 149219820Sjeff} 150219820Sjeff 151219820Sjeffstatic inline int 152219820Sjeffparam_get_int(char *buffer, struct kernel_param *kp) 153219820Sjeff{ 154219820Sjeff 155219820Sjeff return 0; 156219820Sjeff} 157219820Sjeff 158219820Sjeff 159219820Sjeffstatic inline int 160219820Sjeffparam_set_uint(const char *val, struct kernel_param *kp) 161219820Sjeff{ 162219820Sjeff 163219820Sjeff return 0; 164219820Sjeff} 165219820Sjeff 166219820Sjeffstatic inline int 167219820Sjeffparam_get_uint(char *buffer, struct kernel_param *kp) 168219820Sjeff{ 169219820Sjeff 170219820Sjeff return 0; 171219820Sjeff} 172219820Sjeff 173219820Sjeff 174219820Sjeffstatic inline int 175219820Sjeffparam_set_long(const char *val, struct kernel_param *kp) 176219820Sjeff{ 177219820Sjeff 178219820Sjeff return 0; 179219820Sjeff} 180219820Sjeff 181219820Sjeffstatic inline int 182219820Sjeffparam_get_long(char *buffer, struct kernel_param *kp) 183219820Sjeff{ 184219820Sjeff 185219820Sjeff return 0; 186219820Sjeff} 187219820Sjeff 188219820Sjeff 189219820Sjeffstatic inline int 190219820Sjeffparam_set_ulong(const char *val, struct kernel_param *kp) 191219820Sjeff{ 192219820Sjeff 193219820Sjeff return 0; 194219820Sjeff} 195219820Sjeff 196219820Sjeffstatic inline int 197219820Sjeffparam_get_ulong(char *buffer, struct kernel_param *kp) 198219820Sjeff{ 199219820Sjeff 200219820Sjeff return 0; 201219820Sjeff} 202219820Sjeff 203219820Sjeff 204219820Sjeffstatic inline int 205219820Sjeffparam_set_charp(const char *val, struct kernel_param *kp) 206219820Sjeff{ 207219820Sjeff 208219820Sjeff return 0; 209219820Sjeff} 210219820Sjeff 211219820Sjeffstatic inline int 212219820Sjeffparam_get_charp(char *buffer, struct kernel_param *kp) 213219820Sjeff{ 214219820Sjeff 215219820Sjeff return 0; 216219820Sjeff} 217219820Sjeff 218219820Sjeff 219219820Sjeffstatic inline int 220219820Sjeffparam_set_bool(const char *val, struct kernel_param *kp) 221219820Sjeff{ 222219820Sjeff 223219820Sjeff return 0; 224219820Sjeff} 225219820Sjeff 226219820Sjeffstatic inline int 227219820Sjeffparam_get_bool(char *buffer, struct kernel_param *kp) 228219820Sjeff{ 229219820Sjeff 230219820Sjeff return 0; 231219820Sjeff} 232219820Sjeff 233219820Sjeff#endif /* _LINUX_MODULEPARAM_H_ */ 234