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- /*-
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright (c) 2003 Poul-Henning Kamp
- * All rights reserved.
- *
- * This software was developed for the FreeBSD Project by Poul-Henning Kamp
- * and NAI Labs, the Security Research Division of Network Associates, Inc.
- * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
- * DARPA CHATS research program.
- *
- * 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. The names of the authors may not be used to endorse or promote
- * products derived from this software without specific prior written
- * permission.
- *
- * 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.
- */
- #ifndef _GEOM_GEOM_DISK_H_
- #define _GEOM_GEOM_DISK_H_
- #define DISK_RR_UNKNOWN 0
- #define DISK_RR_NON_ROTATING 1
- #define DISK_RR_MIN 0x0401
- #define DISK_RR_MAX 0xfffe
- #ifdef _KERNEL
- #include <sys/queue.h>
- #include <sys/_lock.h>
- #include <sys/_mutex.h>
- #include <sys/disk.h>
- #define G_DISK_CLASS_NAME "DISK"
- struct disk;
- typedef int disk_open_t(struct disk *);
- typedef int disk_close_t(struct disk *);
- typedef void disk_strategy_t(struct bio *bp);
- typedef int disk_getattr_t(struct bio *bp);
- typedef void disk_gone_t(struct disk *);
- typedef int disk_ioctl_t(struct disk *, u_long cmd, void *data,
- int fflag, struct thread *td);
- /* NB: disk_ioctl_t SHALL be cast'able to d_ioctl_t */
- struct g_geom;
- struct devstat;
- typedef enum {
- DISK_INIT_NONE,
- DISK_INIT_CREATE,
- DISK_INIT_START,
- DISK_INIT_DONE
- } disk_init_level;
- struct disk_alias {
- LIST_ENTRY(disk_alias) da_next;
- const char *da_alias;
- };
- struct disk {
- /* Fields which are private to geom_disk */
- struct g_geom *d_geom;
- struct devstat *d_devstat;
- int d_goneflag;
- int d_destroyed;
- disk_init_level d_init_level;
- /* Shared fields */
- u_int d_flags;
- const char *d_name;
- u_int d_unit;
- struct bio_queue_head *d_queue;
- struct mtx *d_lock;
- /* Disk methods */
- disk_open_t *d_open;
- disk_close_t *d_close;
- disk_strategy_t *d_strategy;
- disk_ioctl_t *d_ioctl;
- dumper_t *d_dump;
- disk_getattr_t *d_getattr;
- disk_gone_t *d_gone;
- /* Info fields from driver to geom_disk.c. Valid when open */
- u_int d_sectorsize;
- off_t d_mediasize;
- u_int d_fwsectors;
- u_int d_fwheads;
- u_int d_maxsize;
- off_t d_delmaxsize;
- off_t d_stripeoffset;
- off_t d_stripesize;
- char d_ident[DISK_IDENT_SIZE];
- char d_descr[DISK_IDENT_SIZE];
- uint16_t d_hba_vendor;
- uint16_t d_hba_device;
- uint16_t d_hba_subvendor;
- uint16_t d_hba_subdevice;
- uint16_t d_rotation_rate;
- char d_attachment[DISK_IDENT_SIZE];
- /* Fields private to the driver */
- void *d_drv1;
- /* Fields private to geom_disk, to be moved on next version bump */
- LIST_HEAD(,disk_alias) d_aliases;
- struct g_event *d_cevent;
- struct g_event *d_devent;
- };
- #define DISKFLAG_RESERVED 0x0001 /* Was NEEDSGIANT */
- #define DISKFLAG_OPEN 0x0002
- #define DISKFLAG_CANDELETE 0x0004
- #define DISKFLAG_CANFLUSHCACHE 0x0008
- #define DISKFLAG_UNMAPPED_BIO 0x0010
- #define DISKFLAG_DIRECT_COMPLETION 0x0020
- #define DISKFLAG_CANZONE 0x0080
- #define DISKFLAG_WRITE_PROTECT 0x0100
- struct disk *disk_alloc(void);
- void disk_create(struct disk *disk, int version);
- void disk_destroy(struct disk *disk);
- void disk_gone(struct disk *disk);
- void disk_attr_changed(struct disk *dp, const char *attr, int flag);
- void disk_media_changed(struct disk *dp, int flag);
- void disk_media_gone(struct disk *dp, int flag);
- int disk_resize(struct disk *dp, int flag);
- void disk_add_alias(struct disk *disk, const char *);
- #define DISK_VERSION_00 0x58561059
- #define DISK_VERSION_01 0x5856105a
- #define DISK_VERSION_02 0x5856105b
- #define DISK_VERSION_03 0x5856105c
- #define DISK_VERSION_04 0x5856105d
- #define DISK_VERSION_05 0x5856105e
- #define DISK_VERSION_06 0x5856105f
- #define DISK_VERSION DISK_VERSION_06
- #endif /* _KERNEL */
- #endif /* _GEOM_GEOM_DISK_H_ */
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