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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) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
*/
/*
* Copyright 2020 Joyent, Inc.
*/
#include <strings.h>
#include <devid.h>
#include <pthread.h>
#include <inttypes.h>
#include <sys/dkio.h>
#include <sys/scsi/scsi_types.h>
#include <fm/topo_mod.h>
#include <fm/topo_list.h>
#include <fm/libdiskstatus.h>
#include <sys/fm/protocol.h>
#include "disk.h"
#include "disk_drivers.h"
static int disk_enum(topo_mod_t *, tnode_t *, const char *,
topo_instance_t, topo_instance_t, void *, void *);
static const topo_modops_t disk_ops =
{ disk_enum, NULL };
static const topo_modinfo_t disk_info =
{DISK, FM_FMRI_SCHEME_HC, DISK_VERSION, &disk_ops};
static int
disk_declare_driver(topo_mod_t *mod, tnode_t *baynode, topo_list_t *dlistp,
char *driver)
{
int err;
if (strcmp(MPTSAS_DRV, driver) == 0) {
char *sas_address = NULL;
tnode_t *child = NULL;
if ((err = disk_mptsas_find_disk(mod, baynode,
&sas_address)) != 0)
return (err);
err = disk_declare_addr(mod, baynode, dlistp,
sas_address, &child);
topo_mod_strfree(mod, sas_address);
return (err);
} else if (strcmp(NVME_DRV, driver) == 0) {
if (disk_nvme_enum_disk(mod, baynode) != 0)
return (-1);
return (0);
}
topo_mod_dprintf(mod, "unknown disk driver '%s'\n", driver);
return (-1);
}
/*ARGSUSED*/
static int
disk_enum(topo_mod_t *mod, tnode_t *baynode,
const char *name, topo_instance_t min, topo_instance_t max,
void *arg, void *notused)
{
char *device, *driver, *pname;
int err;
topo_list_t *dlistp = topo_mod_getspecific(mod);
if (strcmp(name, DISK) != 0 && strcmp(name, NVME) != 0) {
topo_mod_dprintf(mod, "disk_enum: can't enumerate %s nodes - "
"only know how to enumerate %s and %s nodes.", name,
DISK, NVME);
return (-1);
}
/*
* Historically we've always set the parent FRU on nodes; however, it's
* not clear why. Certain node types like USB don't want this, so we
* only do this if the parent is actually a bay.
*/
pname = topo_node_name(baynode);
if (strcmp(pname, BAY) == 0) {
nvlist_t *fmri;
if (topo_node_resource(baynode, &fmri, &err) != 0) {
topo_mod_dprintf(mod, "disk_enum: "
"topo_node_resource error %s\n",
topo_strerror(err));
return (-1);
}
/*
* If the disk enumerator module has been run from an XML map
* and the parent bay node was already created by an enumerator
* module (e.g. ses), then the FRU will already be set.
*/
if (topo_node_fru_set(baynode, fmri, 0, &err) != 0 &&
err != ETOPO_PROP_DEFD) {
topo_mod_dprintf(mod, "disk_enum: "
"topo_node_fru error %s\n", topo_strerror(err));
nvlist_free(fmri);
return (-1);
}
nvlist_free(fmri);
}
/*
* For internal storage, first check to see if we need to
* request more detail from an HBA driver.
*/
if (topo_prop_get_string(baynode, TOPO_PGROUP_BINDING,
TOPO_BINDING_DRIVER, &driver, &err) == 0) {
err = disk_declare_driver(mod, baynode, dlistp, driver);
topo_mod_strfree(mod, driver);
return (err);
} else if (err != ETOPO_PROP_NOENT) {
topo_mod_dprintf(mod, "disk_enum: "
"binding error %s\n", topo_strerror(err));
return (-1);
}
/*
* For internal storage, get the path to the occupant from the
* binding group of the bay node
*/
if (topo_prop_get_string(baynode, TOPO_PGROUP_BINDING,
TOPO_BINDING_OCCUPANT, &device, &err) != 0) {
topo_mod_dprintf(mod, "disk_enum: "
"failed to lookup prop %s/%s: %s\n", TOPO_PGROUP_BINDING,
TOPO_BINDING_OCCUPANT, topo_strerror(err));
return (-1);
}
/* locate and topo enumerate the disk with that path */
err = disk_declare_path(mod, baynode, dlistp, device);
topo_mod_strfree(mod, device);
return (err);
}
/*ARGSUSED*/
int
_topo_init(topo_mod_t *mod, topo_version_t version)
{
topo_list_t *dlistp;
/*
* Turn on module debugging output
*/
if (getenv("TOPODISKDEBUG") != NULL)
topo_mod_setdebug(mod);
topo_mod_dprintf(mod, "_topo_init: "
"initializing %s enumerator\n", DISK);
if (topo_mod_register(mod, &disk_info, TOPO_VERSION) != 0) {
topo_mod_dprintf(mod, "_topo_init: "
"%s registration failed: %s\n", DISK, topo_mod_errmsg(mod));
return (-1); /* mod errno already set */
}
if ((dlistp = topo_mod_zalloc(mod, sizeof (topo_list_t))) == NULL) {
topo_mod_dprintf(mod, "_topo_inti: failed to allocate "
"disk list");
return (-1);
}
if (dev_list_gather(mod, dlistp) != 0) {
topo_mod_unregister(mod);
topo_mod_free(mod, dlistp, sizeof (topo_list_t));
topo_mod_dprintf(mod, "_topo_init: "
"failed to locate disks");
return (-1);
}
topo_mod_dprintf(mod, "_topo_init: "
"%s enumerator initialized\n", DISK);
topo_mod_setspecific(mod, dlistp);
return (0);
}
void
_topo_fini(topo_mod_t *mod)
{
topo_list_t *dlistp = topo_mod_getspecific(mod);
dev_list_free(mod, dlistp);
topo_mod_free(mod, dlistp, sizeof (topo_list_t));
topo_mod_unregister(mod);
topo_mod_dprintf(mod, "_topo_fini: "
"%s enumerator uninitialized\n", DISK);
}
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