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 #define ZFS_MODULE_PARAM(scope_prefix, name_prefix, name, type, perm, desc) \ 47 SYSCTL_DECL(_vfs_ ## scope_prefix); \ 48 SYSCTL_##type(_vfs_ ## scope_prefix, OID_AUTO, name, perm, \ 49 &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( \ 58 scope_prefix, name_prefix, name, func, _, perm, desc) \ 59 ZFS_MODULE_PARAM_CALL_IMPL(_vfs_ ## scope_prefix, name, perm, \ 60 func ## _args(name_prefix ## name), desc) 61 62 #define ZFS_MODULE_VIRTUAL_PARAM_CALL ZFS_MODULE_PARAM_CALL 63 64 #define param_set_arc_long_args(var) \ 65 CTLTYPE_ULONG, &var, 0, param_set_arc_long, "LU" 66 67 #define param_set_arc_min_args(var) \ 68 CTLTYPE_ULONG, &var, 0, param_set_arc_min, "LU" 69 70 #define param_set_arc_max_args(var) \ 71 CTLTYPE_ULONG, &var, 0, param_set_arc_max, "LU" 72 73 #define param_set_arc_int_args(var) \ 74 CTLTYPE_INT, &var, 0, param_set_arc_int, "I" 75 76 #define param_set_deadman_failmode_args(var) \ 77 CTLTYPE_STRING, NULL, 0, param_set_deadman_failmode, "A" 78 79 #define param_set_deadman_synctime_args(var) \ 80 CTLTYPE_ULONG, NULL, 0, param_set_deadman_synctime, "LU" 81 82 #define param_set_deadman_ziotime_args(var) \ 83 CTLTYPE_ULONG, NULL, 0, param_set_deadman_ziotime, "LU" 84 85 #define param_set_multihost_interval_args(var) \ 86 CTLTYPE_ULONG, &var, 0, param_set_multihost_interval, "LU" 87 88 #define param_set_slop_shift_args(var) \ 89 CTLTYPE_INT, &var, 0, param_set_slop_shift, "I" 90 91 #define param_set_min_auto_ashift_args(var) \ 92 CTLTYPE_U64, &var, 0, param_set_min_auto_ashift, "QU" 93 94 #define param_set_max_auto_ashift_args(var) \ 95 CTLTYPE_U64, &var, 0, param_set_max_auto_ashift, "QU" 96 97 #define fletcher_4_param_set_args(var) \ 98 CTLTYPE_STRING, NULL, 0, fletcher_4_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 */ 126