1 /* 2 * Copyright (c) 2003,2004 The DragonFly Project. All rights reserved. 3 * 4 * This code is derived from software contributed to The DragonFly Project 5 * by Matthew Dillon <dillon@backplane.com> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 3. Neither the name of The DragonFly Project nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific, prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * ---------------------------------------------------------------------------- 35 * "THE BEER-WARE LICENSE" (Revision 42): 36 * <phk@FreeBSD.ORG> wrote this file. As long as you retain this notice you 37 * can do whatever you want with this stuff. If we meet some day, and you think 38 * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp 39 * ---------------------------------------------------------------------------- 40 * 41 * $FreeBSD: src/sys/sys/disk.h,v 1.16.2.3 2001/06/20 16:11:01 scottl Exp $ 42 * $DragonFly: src/sys/sys/disk.h,v 1.7 2004/12/30 07:01:52 cpressey Exp $ 43 */ 44 45 #ifndef _SYS_DISK_H_ 46 #define _SYS_DISK_H_ 47 48 #if !defined(_KERNEL) && !defined(_KERNEL_STRUCTURES) 49 #error "This file should not be included by userland programs." 50 #endif 51 52 #ifndef _SYS_DISKSLICE_H_ 53 #include <sys/diskslice.h> 54 #endif 55 56 #ifndef _SYS_DISKLABEL 57 #include <sys/disklabel.h> 58 #endif 59 60 #ifndef _SYS_DISKLABEL 61 #include <sys/msgport.h> 62 #endif 63 64 struct disk { 65 struct lwkt_port d_port; /* interception port */ 66 struct cdevsw *d_devsw; /* our device switch */ 67 struct cdevsw *d_rawsw; /* the raw device switch */ 68 u_int d_flags; 69 u_int d_dsflags; 70 dev_t d_rawdev; /* backing raw device */ 71 dev_t d_cdev; /* special whole-disk part */ 72 struct diskslices *d_slice; 73 struct disklabel d_label; 74 LIST_ENTRY(disk) d_list; 75 }; 76 77 #define DISKFLAG_LOCK 0x1 78 #define DISKFLAG_WANTED 0x2 79 80 #ifdef _KERNEL 81 dev_t disk_create (int unit, struct disk *disk, int flags, struct cdevsw *sw); 82 void disk_destroy (struct disk *disk); 83 int disk_dumpcheck (dev_t dev, u_int *count, u_int *blkno, u_int *secsize); 84 struct disk *disk_enumerate (struct disk *disk); 85 void disk_invalidate (struct disk *disk); 86 #endif /* _KERNEL */ 87 88 #endif /* _SYS_DISK_H_ */ 89