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 /*
24*0Sstevel@tonic-gate  * Copyright 1992-2002 Sun Microsystems, Inc.  All rights reserved.
25*0Sstevel@tonic-gate  * Use is subject to license terms.
26*0Sstevel@tonic-gate  */
27*0Sstevel@tonic-gate 
28*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
29*0Sstevel@tonic-gate 
30*0Sstevel@tonic-gate 
31*0Sstevel@tonic-gate /*
32*0Sstevel@tonic-gate  * attach operations
33*0Sstevel@tonic-gate  */
34*0Sstevel@tonic-gate 
35*0Sstevel@tonic-gate #include <meta.h>
36*0Sstevel@tonic-gate 
37*0Sstevel@tonic-gate /*
38*0Sstevel@tonic-gate  * grow generic device
39*0Sstevel@tonic-gate  */
40*0Sstevel@tonic-gate int
41*0Sstevel@tonic-gate meta_concat_generic(
42*0Sstevel@tonic-gate 	mdsetname_t		*sp,
43*0Sstevel@tonic-gate 	mdname_t		*namep,
44*0Sstevel@tonic-gate 	u_longlong_t		big_or_little,
45*0Sstevel@tonic-gate 	md_error_t		*ep
46*0Sstevel@tonic-gate )
47*0Sstevel@tonic-gate {
48*0Sstevel@tonic-gate 	md_grow_params_t	mgp;
49*0Sstevel@tonic-gate 	char			*miscname;
50*0Sstevel@tonic-gate 
51*0Sstevel@tonic-gate 	/* should have a set */
52*0Sstevel@tonic-gate 	assert(sp != NULL);
53*0Sstevel@tonic-gate 	assert(sp->setno == MD_MIN2SET(meta_getminor(namep->dev)));
54*0Sstevel@tonic-gate 
55*0Sstevel@tonic-gate 	/* get type */
56*0Sstevel@tonic-gate 	if ((miscname = metagetmiscname(namep, ep)) == NULL)
57*0Sstevel@tonic-gate 		return (-1);
58*0Sstevel@tonic-gate 
59*0Sstevel@tonic-gate 	/* grow device */
60*0Sstevel@tonic-gate 	(void) memset(&mgp, 0, sizeof (mgp));
61*0Sstevel@tonic-gate 	if (big_or_little == MD_64BIT_META_DEV)
62*0Sstevel@tonic-gate 		mgp.options = MD_CRO_64BIT;
63*0Sstevel@tonic-gate 	else
64*0Sstevel@tonic-gate 		mgp.options = MD_CRO_32BIT;
65*0Sstevel@tonic-gate 
66*0Sstevel@tonic-gate 	mgp.mnum = meta_getminor(namep->dev);
67*0Sstevel@tonic-gate 	MD_SETDRIVERNAME(&mgp, miscname, sp->setno);
68*0Sstevel@tonic-gate 	if (metaioctl(MD_IOCGROW, &mgp, &mgp.mde, namep->cname) != 0)
69*0Sstevel@tonic-gate 		return (mdstealerror(ep, &mgp.mde));
70*0Sstevel@tonic-gate 
71*0Sstevel@tonic-gate 	/* clear cache */
72*0Sstevel@tonic-gate 	meta_invalidate_name(namep);
73*0Sstevel@tonic-gate 
74*0Sstevel@tonic-gate 	/* return success */
75*0Sstevel@tonic-gate 	return (0);
76*0Sstevel@tonic-gate }
77*0Sstevel@tonic-gate 
78*0Sstevel@tonic-gate /*
79*0Sstevel@tonic-gate  * grow the parent of a device
80*0Sstevel@tonic-gate  */
81*0Sstevel@tonic-gate int
82*0Sstevel@tonic-gate meta_concat_parent(
83*0Sstevel@tonic-gate 	mdsetname_t	*sp,
84*0Sstevel@tonic-gate 	mdname_t	*childnp,
85*0Sstevel@tonic-gate 	md_error_t	*ep
86*0Sstevel@tonic-gate )
87*0Sstevel@tonic-gate {
88*0Sstevel@tonic-gate 	md_common_t	*mdp;
89*0Sstevel@tonic-gate 	mdname_t	*parentnp;
90*0Sstevel@tonic-gate 	md_unit_t	*mup;
91*0Sstevel@tonic-gate 
92*0Sstevel@tonic-gate 	/* should have a set */
93*0Sstevel@tonic-gate 	assert(sp != NULL);
94*0Sstevel@tonic-gate 	assert(sp->setno == MD_MIN2SET(meta_getminor(childnp->dev)));
95*0Sstevel@tonic-gate 
96*0Sstevel@tonic-gate 	/* get parent */
97*0Sstevel@tonic-gate 	if ((mdp = meta_get_unit(sp, childnp, ep)) == NULL)
98*0Sstevel@tonic-gate 		return (-1);
99*0Sstevel@tonic-gate 	if (! MD_HAS_PARENT(mdp->parent))
100*0Sstevel@tonic-gate 		return (0);
101*0Sstevel@tonic-gate 	if (mdp->parent == MD_MULTI_PARENT)
102*0Sstevel@tonic-gate 		return (0);
103*0Sstevel@tonic-gate 
104*0Sstevel@tonic-gate 	/* single parent */
105*0Sstevel@tonic-gate 	if ((parentnp = metamnumname(&sp, mdp->parent, 0, ep)) == NULL)
106*0Sstevel@tonic-gate 		return (-1);
107*0Sstevel@tonic-gate 	/* don't grow non-metadevices or soft partitions */
108*0Sstevel@tonic-gate 	if (! metaismeta(parentnp) || meta_sp_issp(sp, parentnp, ep) == 0)
109*0Sstevel@tonic-gate 		return (0);
110*0Sstevel@tonic-gate 
111*0Sstevel@tonic-gate 	if ((mup = meta_get_mdunit(sp, childnp, ep)) == NULL)
112*0Sstevel@tonic-gate 		return (-1);
113*0Sstevel@tonic-gate 
114*0Sstevel@tonic-gate 	/* grow parent */
115*0Sstevel@tonic-gate 	if (meta_concat_generic(sp, parentnp, mup->c.un_revision, ep) != 0)
116*0Sstevel@tonic-gate 		return (-1);
117*0Sstevel@tonic-gate 
118*0Sstevel@tonic-gate 	/* recursively check for parents of parents */
119*0Sstevel@tonic-gate 	return (meta_concat_parent(sp, parentnp, ep));
120*0Sstevel@tonic-gate }
121