xref: /onnv-gate/usr/src/uts/common/sys/dktp/cmdk.h (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #ifndef _SYS_DKTP_CMDK_H
28*0Sstevel@tonic-gate #define	_SYS_DKTP_CMDK_H
29*0Sstevel@tonic-gate 
30*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
31*0Sstevel@tonic-gate 
32*0Sstevel@tonic-gate #ifdef	__cplusplus
33*0Sstevel@tonic-gate extern "C" {
34*0Sstevel@tonic-gate #endif
35*0Sstevel@tonic-gate 
36*0Sstevel@tonic-gate #define	CMDK_UNITSHF	6
37*0Sstevel@tonic-gate #define	CMDK_MAXPART	(1 << CMDK_UNITSHF)
38*0Sstevel@tonic-gate 
39*0Sstevel@tonic-gate struct	dk_openinfo {
40*0Sstevel@tonic-gate 	uint64_t	dk_reg[OTYPCNT];	/* bit per partition: 2^6 */
41*0Sstevel@tonic-gate 	ulong_t		dk_lyr[CMDK_MAXPART];	/* OTYP_LYR cnt per partition */
42*0Sstevel@tonic-gate 	uint64_t	dk_exl;			/* bit per partition: 2^6 */
43*0Sstevel@tonic-gate };
44*0Sstevel@tonic-gate 
45*0Sstevel@tonic-gate struct	cmdk_label {
46*0Sstevel@tonic-gate 	opaque_t	dkl_objp;
47*0Sstevel@tonic-gate 	char		dkl_name[OBJNAMELEN];
48*0Sstevel@tonic-gate };
49*0Sstevel@tonic-gate 
50*0Sstevel@tonic-gate #define	CMDK_LABEL_MAX	3
51*0Sstevel@tonic-gate struct	cmdk {
52*0Sstevel@tonic-gate 	long		dk_flag;
53*0Sstevel@tonic-gate 	dev_info_t	*dk_dip;
54*0Sstevel@tonic-gate 	dev_t		dk_dev;
55*0Sstevel@tonic-gate 
56*0Sstevel@tonic-gate 	ksema_t		dk_semoclose;	/* lock for opens/closes 	*/
57*0Sstevel@tonic-gate 	struct		dk_openinfo dk_open;
58*0Sstevel@tonic-gate 
59*0Sstevel@tonic-gate 	opaque_t 	dk_tgobjp;	/* target disk object pointer	*/
60*0Sstevel@tonic-gate 	opaque_t 	dk_lbobjp;
61*0Sstevel@tonic-gate 	struct cmdk_label dk_lb[CMDK_LABEL_MAX];
62*0Sstevel@tonic-gate 
63*0Sstevel@tonic-gate 	kmutex_t	dk_pinfo_lock;
64*0Sstevel@tonic-gate 	kcondvar_t	dk_pinfo_cv;
65*0Sstevel@tonic-gate 	int		dk_pinfo_state;
66*0Sstevel@tonic-gate };
67*0Sstevel@tonic-gate 
68*0Sstevel@tonic-gate /*	common disk flags definitions					*/
69*0Sstevel@tonic-gate #define	CMDK_OPEN		0x1
70*0Sstevel@tonic-gate #define	CMDK_VALID_LABEL	0x2
71*0Sstevel@tonic-gate #define	CMDK_TGDK_OPEN		0x4
72*0Sstevel@tonic-gate 
73*0Sstevel@tonic-gate #define	CMDKUNIT(dev) (getminor((dev)) >> CMDK_UNITSHF)
74*0Sstevel@tonic-gate #define	CMDKPART(dev) (getminor((dev)) & (CMDK_MAXPART - 1))
75*0Sstevel@tonic-gate 
76*0Sstevel@tonic-gate #define	CMDK_TGOBJP(dkp)	(dkp)->dk_tgobjp
77*0Sstevel@tonic-gate 
78*0Sstevel@tonic-gate /*	dk_pinfo_states for cmdk_part_info() */
79*0Sstevel@tonic-gate #define	CMDK_PARTINFO_INVALID	0
80*0Sstevel@tonic-gate #define	CMDK_PARTINFO_BUSY	1
81*0Sstevel@tonic-gate #define	CMDK_PARTINFO_BUSY2	2
82*0Sstevel@tonic-gate #define	CMDK_PARTINFO_VALID	3
83*0Sstevel@tonic-gate 
84*0Sstevel@tonic-gate 
85*0Sstevel@tonic-gate #ifdef	__cplusplus
86*0Sstevel@tonic-gate }
87*0Sstevel@tonic-gate #endif
88*0Sstevel@tonic-gate 
89*0Sstevel@tonic-gate #endif	/* _SYS_DKTP_CMDK_H */
90