1112943Sphk/*- 2112943Sphk * Copyright (c) 2003 Poul-Henning Kamp 3112943Sphk * All rights reserved. 4112943Sphk * 5112943Sphk * This software was developed for the FreeBSD Project by Poul-Henning Kamp 6112943Sphk * and NAI Labs, the Security Research Division of Network Associates, Inc. 7112943Sphk * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the 8112943Sphk * DARPA CHATS research program. 9112943Sphk * 10112943Sphk * Redistribution and use in source and binary forms, with or without 11112943Sphk * modification, are permitted provided that the following conditions 12112943Sphk * are met: 13112943Sphk * 1. Redistributions of source code must retain the above copyright 14112943Sphk * notice, this list of conditions and the following disclaimer. 15112943Sphk * 2. Redistributions in binary form must reproduce the above copyright 16112943Sphk * notice, this list of conditions and the following disclaimer in the 17112943Sphk * documentation and/or other materials provided with the distribution. 18112943Sphk * 3. The names of the authors may not be used to endorse or promote 19112943Sphk * products derived from this software without specific prior written 20112943Sphk * permission. 21112943Sphk * 22112943Sphk * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 23112943Sphk * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24112943Sphk * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25112943Sphk * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 26112943Sphk * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27112943Sphk * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28112943Sphk * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29112943Sphk * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30112943Sphk * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31112943Sphk * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32112943Sphk * SUCH DAMAGE. 33112943Sphk * 34112943Sphk * $FreeBSD: stable/11/sys/geom/geom_disk.h 329316 2018-02-15 15:33:17Z avg $ 35112943Sphk */ 36112943Sphk 37112943Sphk#ifndef _GEOM_GEOM_DISK_H_ 38112943Sphk#define _GEOM_GEOM_DISK_H_ 39112943Sphk 40325003Sasomers#define DISK_RR_UNKNOWN 0 41325003Sasomers#define DISK_RR_NON_ROTATING 1 42325003Sasomers#define DISK_RR_MIN 0x0401 43325003Sasomers#define DISK_RR_MAX 0xfffe 44325003Sasomers 45112943Sphk#ifdef _KERNEL 46112943Sphk 47112943Sphk#include <sys/queue.h> 48112988Sphk#include <sys/_lock.h> 49112988Sphk#include <sys/_mutex.h> 50169285Spjd#include <sys/disk.h> 51112943Sphk 52249507Sivoras#define G_DISK_CLASS_NAME "DISK" 53249507Sivoras 54143627Sphkstruct disk; 55143627Sphk 56112943Sphktypedef int disk_open_t(struct disk *); 57112943Sphktypedef int disk_close_t(struct disk *); 58112943Sphktypedef void disk_strategy_t(struct bio *bp); 59223089Sgibbstypedef int disk_getattr_t(struct bio *bp); 60237518Skentypedef void disk_gone_t(struct disk *); 61112943Sphktypedef int disk_ioctl_t(struct disk *, u_long cmd, void *data, 62112943Sphk int fflag, struct thread *td); 63112943Sphk /* NB: disk_ioctl_t SHALL be cast'able to d_ioctl_t */ 64112943Sphk 65112943Sphkstruct g_geom; 66112943Sphkstruct devstat; 67112943Sphk 68302069Skentypedef enum { 69302069Sken DISK_INIT_NONE, 70302069Sken DISK_INIT_START, 71302069Sken DISK_INIT_DONE 72302069Sken} disk_init_level; 73302069Sken 74112943Sphkstruct disk { 75112943Sphk /* Fields which are private to geom_disk */ 76112943Sphk struct g_geom *d_geom; 77112943Sphk struct devstat *d_devstat; 78302069Sken int d_goneflag; 79125975Sphk int d_destroyed; 80302069Sken disk_init_level d_init_level; 81112943Sphk 82112943Sphk /* Shared fields */ 83112943Sphk u_int d_flags; 84112943Sphk const char *d_name; 85112943Sphk u_int d_unit; 86112988Sphk struct bio_queue_head *d_queue; 87112988Sphk struct mtx *d_lock; 88112943Sphk 89112943Sphk /* Disk methods */ 90112943Sphk disk_open_t *d_open; 91112943Sphk disk_close_t *d_close; 92112943Sphk disk_strategy_t *d_strategy; 93112943Sphk disk_ioctl_t *d_ioctl; 94112943Sphk dumper_t *d_dump; 95223089Sgibbs disk_getattr_t *d_getattr; 96237518Sken disk_gone_t *d_gone; 97112943Sphk 98112943Sphk /* Info fields from driver to geom_disk.c. Valid when open */ 99112943Sphk u_int d_sectorsize; 100112943Sphk off_t d_mediasize; 101112943Sphk u_int d_fwsectors; 102112943Sphk u_int d_fwheads; 103112943Sphk u_int d_maxsize; 104249940Ssmh off_t d_delmaxsize; 105112943Sphk u_int d_stripeoffset; 106112943Sphk u_int d_stripesize; 107169285Spjd char d_ident[DISK_IDENT_SIZE]; 108219056Snwhitehorn char d_descr[DISK_IDENT_SIZE]; 109210471Smav uint16_t d_hba_vendor; 110210471Smav uint16_t d_hba_device; 111210471Smav uint16_t d_hba_subvendor; 112210471Smav uint16_t d_hba_subdevice; 113256956Ssmh uint16_t d_rotation_rate; 114112943Sphk 115112943Sphk /* Fields private to the driver */ 116112943Sphk void *d_drv1; 117112943Sphk}; 118112943Sphk 119329316Savg#define DISKFLAG_RESERVED 0x0001 /* Was NEEDSGIANT */ 120329316Savg#define DISKFLAG_OPEN 0x0002 121329316Savg#define DISKFLAG_CANDELETE 0x0004 122329316Savg#define DISKFLAG_CANFLUSHCACHE 0x0008 123329316Savg#define DISKFLAG_UNMAPPED_BIO 0x0010 124329316Savg#define DISKFLAG_DIRECT_COMPLETION 0x0020 125329316Savg#define DISKFLAG_CANZONE 0x0080 126329316Savg#define DISKFLAG_WRITE_PROTECT 0x0100 127112943Sphk 128125975Sphkstruct disk *disk_alloc(void); 129125975Sphkvoid disk_create(struct disk *disk, int version); 130112943Sphkvoid disk_destroy(struct disk *disk); 131152565Sjdpvoid disk_gone(struct disk *disk); 132223089Sgibbsvoid disk_attr_changed(struct disk *dp, const char *attr, int flag); 133238886Smavvoid disk_media_changed(struct disk *dp, int flag); 134238886Smavvoid disk_media_gone(struct disk *dp, int flag); 135242322Straszint disk_resize(struct disk *dp, int flag); 136112943Sphk 137125975Sphk#define DISK_VERSION_00 0x58561059 138169285Spjd#define DISK_VERSION_01 0x5856105a 139237518Sken#define DISK_VERSION_02 0x5856105b 140252657Ssmh#define DISK_VERSION_03 0x5856105c 141256956Ssmh#define DISK_VERSION_04 0x5856105d 142302069Sken#define DISK_VERSION_05 0x5856105e 143302069Sken#define DISK_VERSION DISK_VERSION_05 144112943Sphk 145112943Sphk#endif /* _KERNEL */ 146112943Sphk#endif /* _GEOM_GEOM_DISK_H_ */ 147