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_int_args(var) \ 66 CTLTYPE_INT, &var, 0, param_set_arc_int, "I" 67 68 #define param_set_deadman_failmode_args(var) \ 69 CTLTYPE_STRING, NULL, 0, param_set_deadman_failmode, "A" 70 71 #define param_set_deadman_synctime_args(var) \ 72 CTLTYPE_ULONG, NULL, 0, param_set_deadman_synctime, "LU" 73 74 #define param_set_deadman_ziotime_args(var) \ 75 CTLTYPE_ULONG, NULL, 0, param_set_deadman_ziotime, "LU" 76 77 #define param_set_multihost_interval_args(var) \ 78 CTLTYPE_ULONG, &var, 0, param_set_multihost_interval, "LU" 79 80 #define param_set_slop_shift_args(var) \ 81 CTLTYPE_INT, &var, 0, param_set_slop_shift, "I" 82 83 #define param_set_min_auto_ashift_args(var) \ 84 CTLTYPE_U64, &var, 0, param_set_min_auto_ashift, "QU" 85 86 #define param_set_max_auto_ashift_args(var) \ 87 CTLTYPE_U64, &var, 0, param_set_max_auto_ashift, "QU" 88 89 #define fletcher_4_param_set_args(var) \ 90 CTLTYPE_STRING, NULL, 0, fletcher_4_param, "A" 91 92 #include <sys/kernel.h> 93 #define module_init(fn) \ 94 static void \ 95 wrap_ ## fn(void *dummy __unused) \ 96 { \ 97 fn(); \ 98 } \ 99 SYSINIT(zfs_ ## fn, SI_SUB_LAST, SI_ORDER_FIRST, wrap_ ## fn, NULL) 100 101 #define module_init_early(fn) \ 102 static void \ 103 wrap_ ## fn(void *dummy __unused) \ 104 { \ 105 fn(); \ 106 } \ 107 SYSINIT(zfs_ ## fn, SI_SUB_INT_CONFIG_HOOKS, SI_ORDER_FIRST, wrap_ ## fn, NULL) 108 109 #define module_exit(fn) \ 110 static void \ 111 wrap_ ## fn(void *dummy __unused) \ 112 { \ 113 fn(); \ 114 } \ 115 SYSUNINIT(zfs_ ## fn, SI_SUB_LAST, SI_ORDER_FIRST, wrap_ ## fn, NULL) 116 /* END CSTYLED */ 117 118 #endif /* SPL_MOD_H */ 119