1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright 2018-2020 Alex Richardson <arichardson@FreeBSD.org> 5 * 6 * This software was developed by SRI International and the University of 7 * Cambridge Computer Laboratory (Department of Computer Science and 8 * Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the 9 * DARPA SSITH research programme. 10 * 11 * This software was developed by SRI International and the University of 12 * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237) 13 * ("CTSRD"), as part of the DARPA CRASH research programme. 14 * 15 * Redistribution and use in source and binary forms, with or without 16 * modification, are permitted provided that the following conditions 17 * are met: 18 * 1. Redistributions of source code must retain the above copyright 19 * notice, this list of conditions and the following disclaimer. 20 * 2. Redistributions in binary form must reproduce the above copyright 21 * notice, this list of conditions and the following disclaimer in the 22 * documentation and/or other materials provided with the distribution. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * $FreeBSD$ 37 */ 38#pragma once 39 40#include_next <sys/param.h> 41 42#ifndef BLKDEV_IOSIZE 43#define BLKDEV_IOSIZE PAGE_SIZE /* default block device I/O size */ 44#endif 45#ifndef DFLTPHYS 46#define DFLTPHYS (64 * 1024) /* default max raw I/O transfer size */ 47#endif 48#ifndef MAXPHYS 49#define MAXPHYS (128 * 1024) /* max raw I/O transfer size */ 50#endif 51#ifndef MAXDUMPPGS 52#define MAXDUMPPGS (DFLTPHYS / PAGE_SIZE) 53#endif 54 55#ifndef MCLSHIFT 56#define MCLSHIFT 11 /* convert bytes to mbuf clusters */ 57#endif 58 59#ifndef MCLBYTES 60#define MCLBYTES (1 << MCLSHIFT) /* size of an mbuf cluster */ 61#endif 62 63#ifndef __PAST_END 64#define __PAST_END(array, offset) (((__typeof__(*(array)) *)(array))[offset]) 65#endif 66