mirror of
https://github.com/opnsense/src.git
synced 2026-05-28 04:12:45 -04:00
89 lines
3.3 KiB
C
89 lines
3.3 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*
|
|
* Copyright 2018-2020 Alex Richardson <arichardson@FreeBSD.org>
|
|
*
|
|
* This software was developed by SRI International and the University of
|
|
* Cambridge Computer Laboratory (Department of Computer Science and
|
|
* Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the
|
|
* DARPA SSITH research programme.
|
|
*
|
|
* This software was developed by SRI International and the University of
|
|
* Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
|
|
* ("CTSRD"), as part of the DARPA CRASH research programme.
|
|
*
|
|
* This work was supported by Innovate UK project 105694, "Digital Security by
|
|
* Design (DSbD) Technology Platform Prototype".
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
#pragma once
|
|
|
|
#include_next <sys/param.h>
|
|
|
|
#ifndef BLKDEV_IOSIZE
|
|
#define BLKDEV_IOSIZE PAGE_SIZE /* default block device I/O size */
|
|
#endif
|
|
#ifndef DFLTPHYS
|
|
#define DFLTPHYS (64 * 1024) /* default max raw I/O transfer size */
|
|
#endif
|
|
#ifndef MAXPHYS
|
|
#define MAXPHYS (128 * 1024) /* max raw I/O transfer size */
|
|
#endif
|
|
#ifndef MAXDUMPPGS
|
|
#define MAXDUMPPGS (DFLTPHYS / PAGE_SIZE)
|
|
#endif
|
|
|
|
#ifndef MCLSHIFT
|
|
#define MCLSHIFT 11 /* convert bytes to mbuf clusters */
|
|
#endif
|
|
|
|
#ifndef MCLBYTES
|
|
#define MCLBYTES (1 << MCLSHIFT) /* size of an mbuf cluster */
|
|
#endif
|
|
|
|
#ifndef __PAST_END
|
|
#define __PAST_END(array, offset) (((__typeof__(*(array)) *)(array))[offset])
|
|
#endif
|
|
|
|
#ifndef nitems
|
|
// https://stackoverflow.com/questions/1598773/is-there-a-standard-function-in-c-that-would-return-the-length-of-an-array/1598827#1598827
|
|
#define nitems(x) \
|
|
((sizeof(x) / sizeof(0 [x])) / ((size_t)(!(sizeof(x) % sizeof(0 [x])))))
|
|
#endif
|
|
|
|
#ifndef rounddown
|
|
#define rounddown(x, y) (((x) / (y)) * (y))
|
|
#endif
|
|
#ifndef rounddown2
|
|
#define rounddown2(x, y) ((x) & (~((y)-1))) /* if y is power of two */
|
|
#endif
|
|
#ifndef roundup
|
|
#define roundup(x, y) ((((x) + ((y)-1)) / (y)) * (y)) /* to any y */
|
|
#endif
|
|
#ifndef roundup2
|
|
#define roundup2(x, y) \
|
|
(((x) + ((y)-1)) & (~((y)-1))) /* if y is powers of two */
|
|
#endif
|
|
#ifndef powerof2
|
|
#define powerof2(x) ((((x)-1) & (x)) == 0)
|
|
#endif
|