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 2006 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <fm/topo_mod.h> 30 #include <libdevinfo.h> 31 #include <strings.h> 32 #include "pcibus.h" 33 #include "hostbridge.h" 34 #include "did.h" 35 #include "util.h" 36 37 extern did_hash_t *Didhash; 38 39 static int 40 hb_process(tnode_t *ptn, topo_instance_t hbi, di_node_t bn) 41 { 42 tnode_t *hb; 43 44 if (did_create(Didhash, bn, 0, hbi, NO_RC, TRUST_BDF) == NULL) 45 return (-1); 46 if ((hb = pcihostbridge_declare(ptn, bn, hbi)) == NULL) 47 return (-1); 48 return (topo_mod_enumerate(HbHdl, 49 hb, PCI_BUS, PCI_BUS, 0, MAX_HB_BUSES)); 50 } 51 52 static int 53 rc_process(tnode_t *ptn, topo_instance_t hbi, di_node_t bn) 54 { 55 tnode_t *hb; 56 tnode_t *rc; 57 58 if (did_create(Didhash, bn, 0, hbi, hbi, TRUST_BDF) == NULL) 59 return (-1); 60 if ((hb = pciexhostbridge_declare(ptn, bn, hbi)) == NULL) 61 return (-1); 62 if ((rc = pciexrc_declare(hb, bn, hbi)) == NULL) 63 return (-1); 64 return (topo_mod_enumerate(HbHdl, 65 rc, PCI_BUS, PCIEX_BUS, 0, MAX_HB_BUSES)); 66 } 67 68 69 int 70 pci_hostbridges_find(tnode_t *ptn) 71 { 72 di_node_t devtree; 73 di_node_t pnode; 74 di_node_t cnode; 75 int hbcnt = 0; 76 77 /* Scan for buses, top-level devinfo nodes with the right driver */ 78 devtree = di_init("/", DINFOCPYALL); 79 if (devtree == DI_NODE_NIL) { 80 topo_mod_dprintf(HbHdl, "devinfo init failed."); 81 topo_node_range_destroy(ptn, HOSTBRIDGE); 82 return (0); 83 } 84 85 pnode = di_drv_first_node(PCI, devtree); 86 while (pnode != DI_NODE_NIL) { 87 if (hb_process(ptn, hbcnt++, pnode) < 0) { 88 di_fini(devtree); 89 topo_node_range_destroy(ptn, HOSTBRIDGE); 90 return (topo_mod_seterrno(HbHdl, EMOD_PARTIAL_ENUM)); 91 } 92 pnode = di_drv_next_node(pnode); 93 } 94 95 pnode = di_drv_first_node(NPE, devtree); 96 while (pnode != DI_NODE_NIL) { 97 for (cnode = di_child_node(pnode); cnode != DI_NODE_NIL; 98 cnode = di_sibling_node(cnode)) { 99 if (di_driver_name(cnode) == NULL) 100 continue; 101 if (strcmp(di_driver_name(cnode), PCI_PCI) == 0) { 102 if (hb_process(ptn, hbcnt++, cnode) < 0) { 103 di_fini(devtree); 104 topo_node_range_destroy(ptn, 105 HOSTBRIDGE); 106 return (topo_mod_seterrno(HbHdl, 107 EMOD_PARTIAL_ENUM)); 108 } 109 } 110 if (strcmp(di_driver_name(cnode), PCIE_PCI) == 0) { 111 if (rc_process(ptn, hbcnt++, cnode) < 0) { 112 di_fini(devtree); 113 topo_node_range_destroy(ptn, 114 HOSTBRIDGE); 115 return (topo_mod_seterrno(HbHdl, 116 EMOD_PARTIAL_ENUM)); 117 } 118 } 119 } 120 pnode = di_drv_next_node(pnode); 121 } 122 di_fini(devtree); 123 return (0); 124 } 125 126 /*ARGSUSED*/ 127 int 128 platform_hb_enum(tnode_t *parent, const char *name, 129 topo_instance_t imin, topo_instance_t imax) 130 { 131 return (pci_hostbridges_find(parent)); 132 } 133 134 /*ARGSUSED*/ 135 int 136 platform_hb_label(tnode_t *node, nvlist_t *in, nvlist_t **out) 137 { 138 return (labelmethod_inherit(HbHdl, node, in, out)); 139 } 140