/*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1988 University of Utah. * Copyright (c) 1990, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * the Systems Programming Group of the University of Utah Computer * Science Department. * * 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. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. * * from: Utah $Hdr: fdioctl.h 1.1 90/07/09$ */ #ifndef _SYS_MDIOCTL_H_ #define _SYS_MDIOCTL_H_ enum md_types {MD_MALLOC, MD_PRELOAD, MD_VNODE, MD_SWAP, MD_NULL}; /* * Ioctl definitions for memory disk pseudo-device. */ #define MDNPAD 96 struct md_ioctl { unsigned md_version; /* Structure layout version */ unsigned md_unit; /* unit number */ enum md_types md_type ; /* type of disk */ char *md_file; /* pathname of file to mount */ off_t md_mediasize; /* size of disk in bytes */ unsigned md_sectorsize; /* sectorsize */ unsigned md_options; /* options */ u_int64_t md_base; /* base address */ int md_fwheads; /* firmware heads */ int md_fwsectors; /* firmware sectors */ char *md_label; /* label of the device */ int md_pad[MDNPAD]; /* padding */ }; #define MD_NAME "md" #define MDCTL_NAME "mdctl" #define MDIOVERSION 0 /* * Before you can use a unit, it must be configured with MDIOCSET. * The configuration persists across opens and closes of the device; * an MDIOCCLR must be used to reset a configuration. An attempt to * MDIOCSET an already active unit will return EBUSY. */ #define MDIOCATTACH _IOWR('m', 0, struct md_ioctl) /* attach disk */ #define MDIOCDETACH _IOWR('m', 1, struct md_ioctl) /* detach disk */ #define MDIOCQUERY _IOWR('m', 2, struct md_ioctl) /* query status */ #define MDIOCRESIZE _IOWR('m', 4, struct md_ioctl) /* resize disk */ #define MD_CLUSTER 0x01 /* Don't cluster */ #define MD_RESERVE 0x02 /* Pre-reserve swap */ #define MD_AUTOUNIT 0x04 /* Assign next free unit */ #define MD_READONLY 0x08 /* Readonly mode */ #define MD_COMPRESS 0x10 /* Compression mode */ #define MD_FORCE 0x20 /* Don't try to prevent foot-shooting */ #define MD_ASYNC 0x40 /* Asynchronous mode */ #define MD_VERIFY 0x80 /* Open file with O_VERIFY (vnode only) */ #define MD_CACHE 0x100 /* Cache vnode data */ #define MD_MUSTDEALLOC 0x200 /* BIO_DELETE only if dealloc is available */ #endif /* _SYS_MDIOCTL_H_*/
