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