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 /*
23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #include <fm/topo_mod.h>
28 #include <fm/topo_hc.h>
29 #include <libdevinfo.h>
30 #include <strings.h>
31 #include <pcibus.h>
32 #include <hostbridge.h>
33 #include <did.h>
34 #include <util.h>
35
36 static int
hb_process(topo_mod_t * mod,tnode_t * ptn,topo_instance_t hbi,di_node_t bn)37 hb_process(topo_mod_t *mod, tnode_t *ptn, topo_instance_t hbi, di_node_t bn)
38 {
39 tnode_t *hb;
40 did_t *hbdid;
41
42 if ((hbdid = did_create(mod, bn, 0, hbi, NO_RC, TRUST_BDF)) == NULL)
43 return (-1);
44 if ((hb = pcihostbridge_declare(mod, ptn, bn, hbi)) == NULL)
45 return (-1);
46 if (topo_mod_enumerate(mod,
47 hb, PCI_BUS, PCI_BUS, 0, MAX_HB_BUSES, (void *)hbdid) < 0) {
48 topo_node_unbind(hb);
49 return (-1);
50 }
51
52 return (0);
53 }
54
55 static int
rc_process(topo_mod_t * mod,tnode_t * ptn,topo_instance_t hbi,di_node_t bn)56 rc_process(topo_mod_t *mod, tnode_t *ptn, topo_instance_t hbi, di_node_t bn)
57 {
58 tnode_t *hb;
59 tnode_t *rc;
60 did_t *hbdid;
61
62 if ((hbdid = did_create(mod, bn, 0, hbi, hbi, TRUST_BDF)) == NULL)
63 return (-1);
64 if ((hb = pciexhostbridge_declare(mod, ptn, bn, hbi)) == NULL)
65 return (-1);
66 if ((rc = pciexrc_declare(mod, hb, bn, hbi)) == NULL)
67 return (-1);
68 if (topo_mod_enumerate(mod,
69 rc, PCI_BUS, PCIEX_BUS, 0, MAX_HB_BUSES, (void *)hbdid) < 0) {
70 topo_node_unbind(hb);
71 topo_node_unbind(rc);
72 return (-1);
73 }
74
75 return (0);
76 }
77
78
79 int
pci_hostbridges_find(topo_mod_t * mod,tnode_t * ptn)80 pci_hostbridges_find(topo_mod_t *mod, tnode_t *ptn)
81 {
82 di_node_t devtree;
83 di_node_t pnode, cnode;
84 int hbcnt = 0;
85
86 /* Scan for buses, top-level devinfo nodes with the right driver */
87 devtree = topo_mod_devinfo(mod);
88 if (devtree == DI_NODE_NIL) {
89 topo_mod_dprintf(mod, "devinfo init failed.");
90 topo_node_range_destroy(ptn, HOSTBRIDGE);
91 return (0);
92 }
93
94 pnode = di_drv_first_node(PCI, devtree);
95 while (pnode != DI_NODE_NIL) {
96 if (hb_process(mod, ptn, hbcnt, pnode) < 0) {
97 if (hbcnt == 0)
98 topo_node_range_destroy(ptn, HOSTBRIDGE);
99 return (topo_mod_seterrno(mod, EMOD_PARTIAL_ENUM));
100 }
101 hbcnt++;
102 pnode = di_drv_next_node(pnode);
103 }
104
105 pnode = di_drv_first_node(NPE, devtree);
106 while (pnode != DI_NODE_NIL) {
107 for (cnode = di_child_node(pnode); cnode != DI_NODE_NIL;
108 cnode = di_sibling_node(cnode)) {
109 if (di_driver_name(cnode) == NULL)
110 continue;
111 if (strcmp(di_driver_name(cnode), PCI_PCI) == 0) {
112 if (hb_process(mod, ptn, hbcnt, cnode) < 0) {
113 if (hbcnt == 0)
114 topo_node_range_destroy(ptn,
115 HOSTBRIDGE);
116 return (topo_mod_seterrno(mod,
117 EMOD_PARTIAL_ENUM));
118 }
119 hbcnt++;
120 }
121 if (strcmp(di_driver_name(cnode), PCIEB) == 0) {
122 if (rc_process(mod, ptn, hbcnt, cnode) < 0) {
123 if (hbcnt == 0)
124 topo_node_range_destroy(ptn,
125 HOSTBRIDGE);
126 return (topo_mod_seterrno(mod,
127 EMOD_PARTIAL_ENUM));
128 }
129 hbcnt++;
130 }
131 }
132 pnode = di_drv_next_node(pnode);
133 }
134 return (0);
135 }
136
137 /*ARGSUSED*/
138 int
platform_hb_enum(topo_mod_t * mod,tnode_t * parent,const char * name,topo_instance_t imin,topo_instance_t imax)139 platform_hb_enum(topo_mod_t *mod, tnode_t *parent, const char *name,
140 topo_instance_t imin, topo_instance_t imax)
141 {
142 return (pci_hostbridges_find(mod, parent));
143 }
144
145 /*ARGSUSED*/
146 int
platform_hb_label(topo_mod_t * mod,tnode_t * node,nvlist_t * in,nvlist_t ** out)147 platform_hb_label(topo_mod_t *mod, tnode_t *node, nvlist_t *in, nvlist_t **out)
148 {
149 return (labelmethod_inherit(mod, node, in, out));
150 }
151