xref: /titanic_52/usr/src/uts/common/fs/zfs/sys/vdev_disk.h (revision 39cddb10a31c1c2e66aed69e6871d09caa4c8147)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  * Copyright (c) 2013 Joyent, Inc. All rights reserved.
25  * Copyright 2012 Nexenta Systems, Inc.  All rights reserved.
26  */
27 
28 #ifndef _SYS_VDEV_DISK_H
29 #define	_SYS_VDEV_DISK_H
30 
31 #include <sys/vdev.h>
32 #ifdef _KERNEL
33 #include <sys/buf.h>
34 #include <sys/ddi.h>
35 #include <sys/sunldi.h>
36 #include <sys/sunddi.h>
37 #endif
38 
39 #ifdef	__cplusplus
40 extern "C" {
41 #endif
42 
43 #ifdef _KERNEL
44 typedef struct vdev_disk {
45 	ddi_devid_t	vd_devid;
46 	char		*vd_minor;
47 	ldi_handle_t	vd_lh;
48 	list_t		vd_ldi_cbs;
49 	boolean_t	vd_ldi_offline;
50 } vdev_disk_t;
51 #endif
52 
53 extern int vdev_disk_physio(vdev_t *,
54     caddr_t, size_t, uint64_t, int, boolean_t);
55 
56 /*
57  * Since vdev_disk.c is not compiled into libzpool, this function should only be
58  * defined in the zfs kernel module.
59  */
60 #ifdef _KERNEL
61 extern int vdev_disk_ldi_physio(ldi_handle_t, caddr_t, size_t, uint64_t, int);
62 #endif
63 #ifdef	__cplusplus
64 }
65 #endif
66 
67 #endif	/* _SYS_VDEV_DISK_H */
68