hb_i86pc.c revision 724365f7556fc4201fdb11766ebc6bd918523130
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <fm/topo_mod.h>
#include <libdevinfo.h>
#include <strings.h>
#include "pcibus.h"
#include "hostbridge.h"
#include "did.h"
#include "util.h"
static int
hb_process(tnode_t *ptn, topo_instance_t hbi, di_node_t bn, did_hash_t *didhash,
di_prom_handle_t promtree, topo_mod_t *mod)
{
tnode_t *hb;
if (did_create(didhash, bn, 0, hbi, NO_RC, TRUST_BDF, promtree) == NULL)
return (-1);
if ((hb = pcihostbridge_declare(ptn, bn, hbi, didhash,
promtree, mod)) == NULL)
return (-1);
return (topo_mod_enumerate(mod, hb, PCI_BUS, PCI_BUS, 0,
MAX_HB_BUSES));
}
static int
rc_process(tnode_t *ptn, topo_instance_t hbi, di_node_t bn, did_hash_t *didhash,
di_prom_handle_t promtree, topo_mod_t *mod)
{
tnode_t *hb;
tnode_t *rc;
if (did_create(didhash, bn, 0, hbi, hbi, TRUST_BDF, promtree) == NULL)
return (-1);
if ((hb = pciexhostbridge_declare(ptn, bn, hbi, didhash, promtree, mod))
== NULL)
return (-1);
if ((rc = pciexrc_declare(hb, bn, hbi, didhash, promtree, mod)) == NULL)
return (-1);
return (topo_mod_enumerate(mod,
rc, PCI_BUS, PCIEX_BUS, 0, MAX_HB_BUSES));
}
int
pci_hostbridges_find(tnode_t *ptn, did_hash_t *didhash,
di_prom_handle_t promtree, topo_mod_t *mod)
{
di_node_t devtree;
di_node_t pnode;
di_node_t cnode;
int hbcnt = 0;
/* Scan for buses, top-level devinfo nodes with the right driver */
devtree = di_init("/", DINFOCPYALL);
if (devtree == DI_NODE_NIL) {
topo_mod_dprintf(mod, "devinfo init failed.");
topo_node_range_destroy(ptn, HOSTBRIDGE);
return (0);
}
pnode = di_drv_first_node(PCI, devtree);
while (pnode != DI_NODE_NIL) {
if (hb_process(ptn, hbcnt++, pnode, didhash, promtree, mod)
< 0) {
di_fini(devtree);
topo_node_range_destroy(ptn, HOSTBRIDGE);
return (topo_mod_seterrno(mod, EMOD_PARTIAL_ENUM));
}
pnode = di_drv_next_node(pnode);
}
pnode = di_drv_first_node(NPE, devtree);
while (pnode != DI_NODE_NIL) {
for (cnode = di_child_node(pnode); cnode != DI_NODE_NIL;
cnode = di_sibling_node(cnode)) {
if (di_driver_name(cnode) == NULL)
continue;
if (strcmp(di_driver_name(cnode), PCI_PCI) == 0) {
if (hb_process(ptn, hbcnt++, cnode, didhash,
promtree, mod) < 0) {
di_fini(devtree);
topo_node_range_destroy(ptn,
HOSTBRIDGE);
return (topo_mod_seterrno(mod,
EMOD_PARTIAL_ENUM));
}
}
if (strcmp(di_driver_name(cnode), PCIE_PCI) == 0) {
if (rc_process(ptn, hbcnt++, cnode, didhash,
promtree, mod) < 0) {
di_fini(devtree);
topo_node_range_destroy(ptn,
HOSTBRIDGE);
return (topo_mod_seterrno(mod,
EMOD_PARTIAL_ENUM));
}
}
}
pnode = di_drv_next_node(pnode);
}
di_fini(devtree);
return (0);
}
/*ARGSUSED*/
int
platform_hb_enum(tnode_t *parent, const char *name,
topo_instance_t imin, topo_instance_t imax, did_hash_t *didhash,
di_prom_handle_t promtree, topo_mod_t *mod)
{
return (pci_hostbridges_find(parent, didhash, promtree, mod));
}
/*ARGSUSED*/
int
platform_hb_label(tnode_t *node, nvlist_t *in, nvlist_t **out, topo_mod_t *mod)
{
return (labelmethod_inherit(mod, node, in, out));
}