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/*
* 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 (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
*/
/*
* i86pc Generic hostbridge/pciex/pci enumerator
*
* hostbridge/pciexrc/pcibus topo nodes are created per SMBIOS type 138
* (SUN_OEM_PCIEXRC) records. Each type 138 record can either represent
* a hostbridge or a pciexrc/pcibus determined by whether it points to
* a baseboard record or another type 138 record.
*
* x86pi_gen_hbr() is called when a new hostbridge node needs to be created..
* It then searches all the type 138 records that connected to it. For each
* of the records, bdf is compared to find a matching di_node. If the
* di_node is a pciex root port, a pciexrc (bad name!) node will be created.
* When pciexrc creation is done, or the di_node is a pcibus, in either
* case the pcibus module will loaded to enumerate pciexbus/pcibus etc.
*
* The enumeration uses did routines heavily, which requires a did hash
* pointer stored in x86pi's module-specific area.
*/
#include <sys/types.h>
#include <strings.h>
#include <fm/topo_mod.h>
#include <fm/topo_hc.h>
#include <sys/systeminfo.h>
#include <sys/smbios_impl.h>
#include <sys/fm/protocol.h>
#include <x86pi_impl.h>
#include <did.h>
#include <did_impl.h>
#include <did_props.h>
#include <hostbridge.h>
#define PCI_ENUM "pcibus"
#define PCI_ENUMR_VERS 1
#define MAX_HB_BUSES 255
extern txprop_t RC_common_props[], HB_common_props[], ExHB_common_props[];
extern int RC_propcnt, HB_propcnt, ExHB_propcnt;
static topo_mod_t *pcimp = NULL;
int
x86pi_hbr_enum_init(topo_mod_t *mod)
{
const char *f = "x86pi_hbr_enum_init";
if (did_hash_init(mod) < 0) {
topo_mod_dprintf(mod, "%s: did_hash_init() failed.\n", f);
return (-1);
}
if ((pcimp = topo_mod_load(mod, PCI_ENUM, PCI_ENUMR_VERS)) == NULL) {
topo_mod_dprintf(mod,
"%s: %s enumerator could not load %s.\n",
f, HOSTBRIDGE, PCI_ENUM);
did_hash_fini(mod);
return (-1);
}
return (0);
}
void
x86pi_hbr_enum_fini(topo_mod_t *mod)
{
did_hash_fini(mod);
topo_mod_unload(pcimp);
pcimp = NULL;
}
static int
pciex_process(topo_mod_t *mod, tnode_t *tn_hbr, di_node_t rcn,
topo_instance_t rci)
{
did_t *did;
int rv;
tnode_t *tn_rc;
x86pi_hcfmri_t hcfmri = {0};
tnode_t *tn_bb = topo_node_parent(tn_hbr);
const char *f = "pciexrc_process";
if ((did = did_create(mod, rcn, topo_node_instance(tn_bb),
topo_node_instance(tn_hbr), rci, TRUST_BDF)) == NULL)
return (-1);
did_markrc(did);
/*
* Let did set the hostbridge properties excluding FRU and label.
*/
(void) did_props_set(tn_hbr, did, ExHB_common_props, ExHB_propcnt - 2);
if (topo_node_range_create(mod, tn_hbr, PCIEX_ROOT, 0,
MAX_HB_BUSES) != 0 && topo_mod_errno(mod) != EMOD_NODE_DUP) {
topo_mod_dprintf(mod,
"%s: create child range for %s failed: %s\n",
f, PCIEX_ROOT, topo_mod_errmsg(mod));
return (-1);
}
hcfmri.hc_name = PCIEX_ROOT;
hcfmri.instance = rci;
rv = x86pi_enum_generic(mod, &hcfmri, tn_hbr, tn_hbr, &tn_rc, 0);
if (rv != 0) {
topo_mod_dprintf(mod, "%s: failed to create %s = %d\n",
f, PCIEX_ROOT, rci);
return (-1);
}
/*
* pcibus enumerator requires di_node_t be set in node specific
*/
topo_node_setspecific(tn_rc, rcn);
/*
* Let did set the RC properties excluding FRU, and label.
*/
if (did_props_set(tn_rc, did, RC_common_props, RC_propcnt - 2) < 0) {
topo_mod_dprintf(mod, "%s: did_props_set failed for %s = %d\n",
f, PCIEX_ROOT, rci);
topo_node_unbind(tn_rc);
return (-1);
}
if (topo_node_range_create(mod, tn_rc, PCIEX_BUS, 0,
MAX_HB_BUSES) != 0 && topo_mod_errno(mod) != EMOD_NODE_DUP) {
topo_mod_dprintf(mod,
"%s: create child range for %s failed: %s\n",
f, PCIEX_BUS, topo_mod_errmsg(mod));
return (-1);
}
return (topo_mod_enumerate(mod, tn_rc, PCI_BUS, PCIEX_BUS,
0, MAX_HB_BUSES, did));
}
static int
pci_process(topo_mod_t *mod, tnode_t *tn_hbr, di_node_t bn)
{
did_t *did;
tnode_t *tn_bb = topo_node_parent(tn_hbr);
if ((did = did_create(mod, bn, topo_node_instance(tn_bb),
topo_node_instance(tn_hbr), NO_RC, TRUST_BDF)) == NULL)
return (-1);
/*
* Let did set the hostbridge properties excluding FRU and label.
*/
(void) did_props_set(tn_hbr, did, HB_common_props, HB_propcnt - 2);
if (topo_node_range_create(mod, tn_hbr, PCI_BUS, 0,
MAX_HB_BUSES) != 0 && topo_mod_errno(mod) != EMOD_NODE_DUP) {
topo_mod_dprintf(mod, "create child range for %s failed: %s\n",
PCI_BUS, topo_mod_errmsg(mod));
return (-1);
}
return (topo_mod_enumerate(mod, tn_hbr, PCI_BUS, PCI_BUS,
0, MAX_HB_BUSES, did));
}
static int
x86pi_gen_pci_pciexrc(topo_mod_t *mod, tnode_t *tn_hbr, uint16_t bdf,
topo_instance_t *rcip)
{
di_node_t devtree, pnode, cnode;
topo_mod_dprintf(mod, "creating pci/pciexrc node bdf = %#x\n",
(int)bdf);
devtree = topo_mod_devinfo(mod);
if (devtree == DI_NODE_NIL) {
topo_mod_dprintf(mod, "devinfo init failed.\n");
return (-1);
}
for (pnode = di_drv_first_node(PCI, devtree);
pnode != DI_NODE_NIL; pnode = di_drv_next_node(pnode))
if (x86pi_bdf(mod, pnode) == bdf)
return (pci_process(mod, tn_hbr, 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 ||
x86pi_bdf(mod, cnode) != bdf)
continue;
if (strcmp(di_driver_name(cnode), PCI_PCI) == 0)
return (pci_process(mod, tn_hbr, cnode));
if (strcmp(di_driver_name(cnode), PCIEB) == 0)
return (pciex_process(mod, tn_hbr,
cnode, (*rcip)++));
topo_mod_dprintf(mod, "no matching driver found: "
"bdf = %#x\n", (int)bdf);
}
pnode = di_drv_next_node(pnode);
}
topo_mod_dprintf(mod, "no matching bdf found: bdf = %#x\n", (int)bdf);
return (0);
}
int
x86pi_gen_hbr(topo_mod_t *mod, tnode_t *tn_bb,
int hbr_smbid, topo_instance_t hbri, topo_instance_t *rcip)
{
x86pi_hcfmri_t hcfmri = {0};
tnode_t *tn_hbr;
smbs_cnt_t *smbc = &stypes[SUN_OEM_PCIEXRC];
smbios_pciexrc_t smb_rc;
int i, rv, err = 0;
const char *f = "x86pi_gen_hbr";
smbios_hdl_t *shp;
shp = topo_mod_smbios(mod);
if (shp == NULL)
return (topo_mod_seterrno(mod, EMOD_PARTIAL_ENUM));
hcfmri.hc_name = HOSTBRIDGE;
hcfmri.instance = hbri;
/* create and bind the "hostbridge" node */
rv = x86pi_enum_generic(mod, &hcfmri, tn_bb, tn_bb, &tn_hbr, 0);
if (rv != 0) {
topo_mod_dprintf(mod, "%s: failed to create %s = %d\n",
f, HOSTBRIDGE, hbri);
return (topo_mod_seterrno(mod, EMOD_PARTIAL_ENUM));
}
/*
* Walk the smbios records and create the pci/pciexrc nodes
*/
for (i = 0; i < smbc->count; i++) {
if (smbios_info_pciexrc(shp, smbc->ids[i].id, &smb_rc) != 0)
topo_mod_dprintf(mod,
"%s: failed: id = %d\n", f, (int)smbc->ids[i].id);
else if (smb_rc.smbpcie_bb == hbr_smbid &&
x86pi_gen_pci_pciexrc(mod, tn_hbr, smb_rc.smbpcie_bdf,
rcip) != 0)
err++;
}
return (err == 0 ? 0 : topo_mod_seterrno(mod, EMOD_PARTIAL_ENUM));
}
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