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 ZMOD_RW CTLFLAG_RWTUN
  35 #define ZMOD_RD CTLFLAG_RDTUN
  36
  37 #define ZFS_MODULE_PARAM(scope_prefix, name_prefix, name, type, perm, desc) \
  38     SYSCTL_DECL(_vfs_ ## scope_prefix); \
  39     SYSCTL_##type(_vfs_ ## scope_prefix, OID_AUTO, name, perm, \
  40         &name_prefix ## name, 0, desc)
  41
  42 #define ZFS_MODULE_PARAM_ARGS   SYSCTL_HANDLER_ARGS
  43
  44 #define ZFS_MODULE_PARAM_CALL_IMPL(parent, name, perm, args, desc) \
  45     SYSCTL_DECL(parent); \
  46     SYSCTL_PROC(parent, OID_AUTO, name, CTLFLAG_MPSAFE | perm | args, desc)
  47
  48 #define ZFS_MODULE_PARAM_CALL( \
  49     scope_prefix, name_prefix, name, func, _, perm, desc) \
  50         ZFS_MODULE_PARAM_CALL_IMPL(_vfs_ ## scope_prefix, name, perm, \
  51             func ## _args(name_prefix ## name), desc)
  52
  53 #define ZFS_MODULE_VIRTUAL_PARAM_CALL ZFS_MODULE_PARAM_CALL
  54
  55 #define param_set_arc_long_args(var) \
  56     CTLTYPE_ULONG, &var, 0, param_set_arc_long, "LU"
  57
  58 #define param_set_arc_int_args(var) \
  59     CTLTYPE_INT, &var, 0, param_set_arc_int, "I"
  60
  61 #define param_set_arc_min_args(var) \
  62     CTLTYPE_ULONG, NULL, 0, param_set_arc_min, "LU"
  63
  64 #define param_set_arc_max_args(var) \
  65     CTLTYPE_ULONG, NULL, 0, param_set_arc_max, "LU"
  66
  67 #define param_set_arc_free_target_args(var) \
  68     CTLTYPE_UINT, NULL, 0, param_set_arc_free_target, "IU"
  69
  70 #define param_set_arc_no_grow_shift_args(var) \
  71     CTLTYPE_INT, NULL, 0, param_set_arc_no_grow_shift, "I"
  72
  73 #define param_set_deadman_failmode_args(var) \
  74     CTLTYPE_STRING, NULL, 0, param_set_deadman_failmode, "A"
  75
  76 #define param_set_deadman_synctime_args(var) \
  77     CTLTYPE_ULONG, NULL, 0, param_set_deadman_synctime, "LU"
  78
  79 #define param_set_deadman_ziotime_args(var) \
  80     CTLTYPE_ULONG, NULL, 0, param_set_deadman_ziotime, "LU"
  81
  82 #define param_set_multihost_interval_args(var) \
  83     CTLTYPE_ULONG, NULL, 0, param_set_multihost_interval, "LU"
  84
  85 #define param_set_slop_shift_args(var) \
  86     CTLTYPE_INT, NULL, 0, param_set_slop_shift, "I"
  87
  88 #define param_set_min_auto_ashift_args(var) \
  89     CTLTYPE_U64, NULL, 0, param_set_min_auto_ashift, "QU"
  90
  91 #define param_set_max_auto_ashift_args(var) \
  92     CTLTYPE_U64, NULL, 0, param_set_max_auto_ashift, "QU"
  93
  94 #define fletcher_4_param_set_args(var) \
  95     CTLTYPE_STRING, NULL, 0, fletcher_4_param, "A"
  96
  97 #define blake3_param_set_args(var) \
  98     CTLTYPE_STRING, NULL, 0, blake3_param, "A"
  99
 100 #include <sys/kernel.h>
 101 #define module_init(fn) \
 102 static void \
 103 wrap_ ## fn(void *dummy __unused) \
 104 { \
 105         fn(); \
 106 } \
 107 SYSINIT(zfs_ ## fn, SI_SUB_LAST, SI_ORDER_FIRST, wrap_ ## fn, NULL)
 108
 109 #define module_init_early(fn) \
 110 static void \
 111 wrap_ ## fn(void *dummy __unused) \
 112 { \
 113         fn(); \
 114 } \
 115 SYSINIT(zfs_ ## fn, SI_SUB_INT_CONFIG_HOOKS, SI_ORDER_FIRST, wrap_ ## fn, NULL)
 116
 117 #define module_exit(fn) \
 118 static void \
 119 wrap_ ## fn(void *dummy __unused) \
 120 { \
 121         fn(); \
 122 } \
 123 SYSUNINIT(zfs_ ## fn, SI_SUB_LAST, SI_ORDER_FIRST, wrap_ ## fn, NULL)
 124
 125 #endif /* SPL_MOD_H */