1*7205Ssd77468 /*
2*7205Ssd77468 * CDDL HEADER START
3*7205Ssd77468 *
4*7205Ssd77468 * The contents of this file are subject to the terms of the
5*7205Ssd77468 * Common Development and Distribution License (the "License").
6*7205Ssd77468 * You may not use this file except in compliance with the License.
7*7205Ssd77468 *
8*7205Ssd77468 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9*7205Ssd77468 * or http://www.opensolaris.org/os/licensing.
10*7205Ssd77468 * See the License for the specific language governing permissions
11*7205Ssd77468 * and limitations under the License.
12*7205Ssd77468 *
13*7205Ssd77468 * When distributing Covered Code, include this CDDL HEADER in each
14*7205Ssd77468 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15*7205Ssd77468 * If applicable, add the following below this CDDL HEADER, with the
16*7205Ssd77468 * fields enclosed by brackets "[]" replaced with your own identifying
17*7205Ssd77468 * information: Portions Copyright [yyyy] [name of copyright owner]
18*7205Ssd77468 *
19*7205Ssd77468 * CDDL HEADER END
20*7205Ssd77468 */
21*7205Ssd77468
22*7205Ssd77468 /*
23*7205Ssd77468 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
24*7205Ssd77468 * Use is subject to license terms.
25*7205Ssd77468 */
26*7205Ssd77468
27*7205Ssd77468 #pragma ident "%Z%%M% %I% %E% SMI"
28*7205Ssd77468
29*7205Ssd77468 /*
30*7205Ssd77468 * Open connections to the LDOM and Machine Description libraries used during
31*7205Ssd77468 * enumeration.
32*7205Ssd77468 */
33*7205Ssd77468
34*7205Ssd77468 #include <sys/types.h>
35*7205Ssd77468 #include <string.h>
36*7205Ssd77468 #include <strings.h>
37*7205Ssd77468 #include <sys/mdesc.h>
38*7205Ssd77468 #include <sys/fm/ldom.h>
39*7205Ssd77468 #include <sys/systeminfo.h>
40*7205Ssd77468
41*7205Ssd77468 #include "pi_impl.h"
42*7205Ssd77468
43*7205Ssd77468 static topo_mod_t *Pi_mod;
44*7205Ssd77468
45*7205Ssd77468 static void pi_free(void *, size_t);
46*7205Ssd77468 static void * pi_alloc(size_t);
47*7205Ssd77468
48*7205Ssd77468 /*
49*7205Ssd77468 * Initialize a connection to the LDOM machine description interface.
50*7205Ssd77468 */
51*7205Ssd77468 int
pi_ldompri_open(topo_mod_t * mod,pi_enum_t * pip)52*7205Ssd77468 pi_ldompri_open(topo_mod_t *mod, pi_enum_t *pip)
53*7205Ssd77468 {
54*7205Ssd77468 if (mod == NULL || pip == NULL) {
55*7205Ssd77468 return (-1);
56*7205Ssd77468 }
57*7205Ssd77468
58*7205Ssd77468 /*
59*7205Ssd77468 * Store the module pointer for this session. This file-global
60*7205Ssd77468 * is used by the allocators called by libldom and libmdesc.
61*7205Ssd77468 */
62*7205Ssd77468 Pi_mod = mod;
63*7205Ssd77468
64*7205Ssd77468 /* Initialize the LDOM connection */
65*7205Ssd77468 pip->ldomp = ldom_init(pi_alloc, pi_free);
66*7205Ssd77468 if (pip->ldomp == NULL) {
67*7205Ssd77468 topo_mod_dprintf(mod,
68*7205Ssd77468 "sun4vpi failed to initialize LDOM layer.\n");
69*7205Ssd77468 Pi_mod = NULL;
70*7205Ssd77468 return (-1);
71*7205Ssd77468 }
72*7205Ssd77468
73*7205Ssd77468 /* Initialize the machine description layer for this ldom instance */
74*7205Ssd77468 pip->ldom_bufsize = ldom_get_core_md(pip->ldomp, &(pip->ldom_bufp));
75*7205Ssd77468 if (pip->ldom_bufsize < 1) {
76*7205Ssd77468 topo_mod_dprintf(mod, "ldom_get_core_md error: bufsize = %d\n",
77*7205Ssd77468 pip->ldom_bufsize);
78*7205Ssd77468 ldom_fini(pip->ldomp);
79*7205Ssd77468 Pi_mod = NULL;
80*7205Ssd77468 return (-1);
81*7205Ssd77468 }
82*7205Ssd77468
83*7205Ssd77468 /* Initialize the machine description internal layer */
84*7205Ssd77468 pip->mdp = md_init_intern(pip->ldom_bufp, pi_alloc, pi_free);
85*7205Ssd77468 if (pip->mdp == NULL ||
86*7205Ssd77468 (pip->md_nodes = md_node_count(pip->mdp)) < 1) {
87*7205Ssd77468 topo_mod_dprintf(mod, "md_init_intern error\n");
88*7205Ssd77468 pi_free(pip->ldom_bufp, pip->ldom_bufsize);
89*7205Ssd77468 ldom_fini(pip->ldomp);
90*7205Ssd77468 Pi_mod = NULL;
91*7205Ssd77468 return (-1);
92*7205Ssd77468 }
93*7205Ssd77468
94*7205Ssd77468 return (0);
95*7205Ssd77468 }
96*7205Ssd77468
97*7205Ssd77468
98*7205Ssd77468 /* ARGSUSED */
99*7205Ssd77468 void
pi_ldompri_close(topo_mod_t * mod,pi_enum_t * pip)100*7205Ssd77468 pi_ldompri_close(topo_mod_t *mod, pi_enum_t *pip)
101*7205Ssd77468 {
102*7205Ssd77468 if (pip == NULL) {
103*7205Ssd77468 return;
104*7205Ssd77468 }
105*7205Ssd77468
106*7205Ssd77468 /* Close the machine description connection */
107*7205Ssd77468 (void) md_fini(pip->mdp);
108*7205Ssd77468
109*7205Ssd77468 /* Close the connection to the LDOM layer */
110*7205Ssd77468 ldom_fini(pip->ldomp);
111*7205Ssd77468
112*7205Ssd77468 /* Free the ldom connection data */
113*7205Ssd77468 pi_free(pip->ldom_bufp, pip->ldom_bufsize);
114*7205Ssd77468
115*7205Ssd77468 /* Reset the file-global module pointer */
116*7205Ssd77468 Pi_mod = NULL;
117*7205Ssd77468 }
118*7205Ssd77468
119*7205Ssd77468
120*7205Ssd77468 static void *
pi_alloc(size_t size)121*7205Ssd77468 pi_alloc(size_t size)
122*7205Ssd77468 {
123*7205Ssd77468 if (Pi_mod == NULL) {
124*7205Ssd77468 /* Cannot allocate memory without a module pointer */
125*7205Ssd77468 return (NULL);
126*7205Ssd77468 }
127*7205Ssd77468 return (topo_mod_alloc(Pi_mod, size));
128*7205Ssd77468 }
129*7205Ssd77468
130*7205Ssd77468
131*7205Ssd77468 static void
pi_free(void * buf,size_t size)132*7205Ssd77468 pi_free(void *buf, size_t size)
133*7205Ssd77468 {
134*7205Ssd77468 if (Pi_mod == NULL) {
135*7205Ssd77468 /* Cannot free memory without a module pointer */
136*7205Ssd77468 return;
137*7205Ssd77468 }
138*7205Ssd77468 topo_mod_free(Pi_mod, buf, size);
139*7205Ssd77468 }
140