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 <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 return (topo_mod_enumerate(mod, 49 hb, PCI_BUS, PCI_BUS, 0, MAX_HB_BUSES, (void *)hbdid)); 50 } 51 52 static int 53 rc_process(topo_mod_t *mod, tnode_t *ptn, topo_instance_t hbi, di_node_t bn) 54 { 55 tnode_t *hb; 56 tnode_t *rc; 57 did_t *hbdid; 58 59 if ((hbdid = did_create(mod, bn, 0, hbi, hbi, TRUST_BDF)) == NULL) 60 return (-1); 61 if ((hb = pciexhostbridge_declare(mod, ptn, bn, hbi)) == NULL) 62 return (-1); 63 if ((rc = pciexrc_declare(mod, hb, bn, hbi)) == NULL) 64 return (-1); 65 return (topo_mod_enumerate(mod, 66 rc, PCI_BUS, PCIEX_BUS, 0, MAX_HB_BUSES, (void *)hbdid)); 67 } 68 69 70 int 71 pci_hostbridges_find(topo_mod_t *mod, tnode_t *ptn) 72 { 73 di_node_t devtree; 74 di_node_t pnode, cnode; 75 int hbcnt = 0; 76 77 /* Scan for buses, top-level devinfo nodes with the right driver */ 78 devtree = topo_mod_devinfo(mod); 79 if (devtree == DI_NODE_NIL) { 80 topo_mod_dprintf(mod, "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(mod, ptn, hbcnt++, pnode) 88 < 0) { 89 topo_node_range_destroy(ptn, HOSTBRIDGE); 90 return (topo_mod_seterrno(mod, 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(mod, ptn, hbcnt++, cnode) < 0) { 103 topo_node_range_destroy(ptn, 104 HOSTBRIDGE); 105 return (topo_mod_seterrno(mod, 106 EMOD_PARTIAL_ENUM)); 107 } 108 } 109 if (strcmp(di_driver_name(cnode), PCIE_PCI) == 0) { 110 if (rc_process(mod, ptn, hbcnt++, cnode) < 0) { 111 topo_node_range_destroy(ptn, 112 HOSTBRIDGE); 113 return (topo_mod_seterrno(mod, 114 EMOD_PARTIAL_ENUM)); 115 } 116 } 117 } 118 pnode = di_drv_next_node(pnode); 119 } 120 return (0); 121 } 122 123 /*ARGSUSED*/ 124 int 125 platform_hb_enum(topo_mod_t *mod, tnode_t *parent, const char *name, 126 topo_instance_t imin, topo_instance_t imax) 127 { 128 return (pci_hostbridges_find(mod, parent)); 129 } 130 131 /*ARGSUSED*/ 132 int 133 platform_hb_label(topo_mod_t *mod, tnode_t *node, nvlist_t *in, nvlist_t **out) 134 { 135 return (labelmethod_inherit(mod, node, in, out)); 136 } 137