include/os/freebsd/spl/sys/mod_os.h

   1 /*
   2  * Copyright (c) 2020 iXsystems, Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * $FreeBSD$
  27  */
  28
  29 #ifndef _SPL_MOD_H
  30 #define _SPL_MOD_H
  31
  32 #include <sys/sysctl.h>
  33
  34 #define ZFS_MODULE_DESCRIPTION(s)
  35 #define ZFS_MODULE_AUTHOR(s)
  36 #define ZFS_MODULE_LICENSE(s)
  37 #define ZFS_MODULE_VERSION(s)
  38
  39 #define EXPORT_SYMBOL(x)
  40 #define module_param(a, b, c)
  41 #define MODULE_PARM_DESC(a, b)
  42
  43 #define ZMOD_RW CTLFLAG_RWTUN
  44 #define ZMOD_RD CTLFLAG_RDTUN
  45
  46 /* BEGIN CSTYLED */
  47 #define ZFS_MODULE_PARAM(scope_prefix, name_prefix, name, type, perm, desc) \
  48     SYSCTL_DECL(_vfs_ ## scope_prefix); \
  49     SYSCTL_##type(_vfs_ ## scope_prefix, OID_AUTO, name, perm, &name_prefix ## name, 0, desc)
  50
  51 #define ZFS_MODULE_PARAM_ARGS   SYSCTL_HANDLER_ARGS
  52
  53 #define ZFS_MODULE_PARAM_CALL_IMPL(parent, name, perm, args, desc) \
  54     SYSCTL_DECL(parent); \
  55     SYSCTL_PROC(parent, OID_AUTO, name, perm | args, desc)
  56
  57 #define ZFS_MODULE_PARAM_CALL(scope_prefix, name_prefix, name, func, _, perm, desc) \
  58     ZFS_MODULE_PARAM_CALL_IMPL(_vfs_ ## scope_prefix, name, perm, func ## _args(name_prefix ## name), desc)
  59
  60 #define ZFS_MODULE_VIRTUAL_PARAM_CALL ZFS_MODULE_PARAM_CALL
  61
  62 #define param_set_arc_long_args(var) \
  63     CTLTYPE_ULONG, &var, 0, param_set_arc_long, "LU"
  64
  65 #define param_set_arc_min_args(var) \
  66     CTLTYPE_ULONG, &var, 0, param_set_arc_min, "LU"
  67
  68 #define param_set_arc_max_args(var) \
  69     CTLTYPE_ULONG, &var, 0, param_set_arc_max, "LU"
  70
  71 #define param_set_arc_int_args(var) \
  72     CTLTYPE_INT, &var, 0, param_set_arc_int, "I"
  73
  74 #define param_set_deadman_failmode_args(var) \
  75     CTLTYPE_STRING, NULL, 0, param_set_deadman_failmode, "A"
  76
  77 #define param_set_deadman_synctime_args(var) \
  78     CTLTYPE_ULONG, NULL, 0, param_set_deadman_synctime, "LU"
  79
  80 #define param_set_deadman_ziotime_args(var) \
  81     CTLTYPE_ULONG, NULL, 0, param_set_deadman_ziotime, "LU"
  82
  83 #define param_set_multihost_interval_args(var) \
  84     CTLTYPE_ULONG, &var, 0, param_set_multihost_interval, "LU"
  85
  86 #define param_set_slop_shift_args(var) \
  87     CTLTYPE_INT, &var, 0, param_set_slop_shift, "I"
  88
  89 #define param_set_min_auto_ashift_args(var) \
  90     CTLTYPE_U64, &var, 0, param_set_min_auto_ashift, "QU"
  91
  92 #define param_set_max_auto_ashift_args(var) \
  93     CTLTYPE_U64, &var, 0, param_set_max_auto_ashift, "QU"
  94
  95 #define fletcher_4_param_set_args(var) \
  96     CTLTYPE_STRING, NULL, 0, fletcher_4_param, "A"
  97
  98 #include <sys/kernel.h>
  99 #define module_init(fn)                                                 \
 100 static void \
 101 wrap_ ## fn(void *dummy __unused) \
 102 {                                                                \
 103         fn();                                            \
 104 }                                                                                                                                               \
 105 SYSINIT(zfs_ ## fn, SI_SUB_LAST, SI_ORDER_FIRST, wrap_ ## fn, NULL)
 106
 107 #define module_init_early(fn)                                                   \
 108 static void \
 109 wrap_ ## fn(void *dummy __unused) \
 110 {                                                                \
 111         fn();                                            \
 112 }                                                                                                                                               \
 113 SYSINIT(zfs_ ## fn, SI_SUB_INT_CONFIG_HOOKS, SI_ORDER_FIRST, wrap_ ## fn, NULL)
 114
 115 #define module_exit(fn)                                                         \
 116 static void \
 117 wrap_ ## fn(void *dummy __unused) \
 118 {                                                                \
 119         fn();                                            \
 120 }                                                                                                                                               \
 121 SYSUNINIT(zfs_ ## fn, SI_SUB_LAST, SI_ORDER_FIRST, wrap_ ## fn, NULL)
 122 /* END CSTYLED */
 123
 124 #endif /* SPL_MOD_H */