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 2007 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 <fm/topo_hc.h> 31 #include <libdevinfo.h> 32 #include <strings.h> 33 #include <pcibus.h> 34 #include <hostbridge.h> 35 #include <did.h> 36 #include <util.h> 37 38 static int 39 hb_process(topo_mod_t *mod, tnode_t *ptn, topo_instance_t hbi, di_node_t bn) 40 { 41 tnode_t *hb; 42 did_t *hbdid; 43 44 if ((hbdid = did_create(mod, bn, 0, hbi, NO_RC, TRUST_BDF)) == NULL) 45 return (-1); 46 if ((hb = pcihostbridge_declare(mod, ptn, bn, hbi)) == NULL) 47 return (-1); 48 if (topo_mod_enumerate(mod, 49 hb, PCI_BUS, PCI_BUS, 0, MAX_HB_BUSES, (void *)hbdid) < 0) { 50 topo_node_unbind(hb); 51 return (-1); 52 } 53 54 return (0); 55 } 56 57 static int 58 rc_process(topo_mod_t *mod, tnode_t *ptn, topo_instance_t hbi, di_node_t bn) 59 { 60 tnode_t *hb; 61 tnode_t *rc; 62 did_t *hbdid; 63 64 if ((hbdid = did_create(mod, bn, 0, hbi, hbi, TRUST_BDF)) == NULL) 65 return (-1); 66 if ((hb = pciexhostbridge_declare(mod, ptn, bn, hbi)) == NULL) 67 return (-1); 68 if ((rc = pciexrc_declare(mod, hb, bn, hbi)) == NULL) 69 return (-1); 70 if (topo_mod_enumerate(mod, 71 rc, PCI_BUS, PCIEX_BUS, 0, MAX_HB_BUSES, (void *)hbdid) < 0) { 72 topo_node_unbind(hb); 73 topo_node_unbind(rc); 74 return (-1); 75 } 76 77 return (0); 78 } 79 80 81 int 82 pci_hostbridges_find(topo_mod_t *mod, tnode_t *ptn) 83 { 84 di_node_t devtree; 85 di_node_t pnode, cnode; 86 int hbcnt = 0; 87 88 /* Scan for buses, top-level devinfo nodes with the right driver */ 89 devtree = topo_mod_devinfo(mod); 90 if (devtree == DI_NODE_NIL) { 91 topo_mod_dprintf(mod, "devinfo init failed."); 92 topo_node_range_destroy(ptn, HOSTBRIDGE); 93 return (0); 94 } 95 96 pnode = di_drv_first_node(PCI, devtree); 97 while (pnode != DI_NODE_NIL) { 98 if (hb_process(mod, ptn, hbcnt, pnode) < 0) { 99 if (hbcnt == 0) 100 topo_node_range_destroy(ptn, HOSTBRIDGE); 101 return (topo_mod_seterrno(mod, EMOD_PARTIAL_ENUM)); 102 } 103 hbcnt++; 104 pnode = di_drv_next_node(pnode); 105 } 106 107 pnode = di_drv_first_node(NPE, devtree); 108 while (pnode != DI_NODE_NIL) { 109 for (cnode = di_child_node(pnode); cnode != DI_NODE_NIL; 110 cnode = di_sibling_node(cnode)) { 111 if (di_driver_name(cnode) == NULL) 112 continue; 113 if (strcmp(di_driver_name(cnode), PCI_PCI) == 0) { 114 if (hb_process(mod, ptn, hbcnt, cnode) < 0) { 115 if (hbcnt == 0) 116 topo_node_range_destroy(ptn, 117 HOSTBRIDGE); 118 return (topo_mod_seterrno(mod, 119 EMOD_PARTIAL_ENUM)); 120 } 121 hbcnt++; 122 } 123 if (strcmp(di_driver_name(cnode), PCIE_PCI) == 0) { 124 if (rc_process(mod, ptn, hbcnt, cnode) < 0) { 125 if (hbcnt == 0) 126 topo_node_range_destroy(ptn, 127 HOSTBRIDGE); 128 return (topo_mod_seterrno(mod, 129 EMOD_PARTIAL_ENUM)); 130 } 131 hbcnt++; 132 } 133 } 134 pnode = di_drv_next_node(pnode); 135 } 136 return (0); 137 } 138 139 /*ARGSUSED*/ 140 int 141 platform_hb_enum(topo_mod_t *mod, tnode_t *parent, const char *name, 142 topo_instance_t imin, topo_instance_t imax) 143 { 144 return (pci_hostbridges_find(mod, parent)); 145 } 146 147 /*ARGSUSED*/ 148 int 149 platform_hb_label(topo_mod_t *mod, tnode_t *node, nvlist_t *in, nvlist_t **out) 150 { 151 return (labelmethod_inherit(mod, node, in, out)); 152 } 153