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libvirt/src/conf/node_device_conf.c
Michal Privoznik 9b332820f3 lib: Format PCI address differently 
Currently, the way we format PCI address is using printf-s
precision, e.g. "%.4x". This works if we don't want to print any
value outside of bounds (which is usually the case). However,
turns out, PCI domain can be 0x10000 which doesn't work well with
our format strings. However, if we change the format string to
"%04x" then we still pad small values with zeroes but also we are
able to print values that are larger than four digits. In fact,
this format string used by kernel to print a PCI address:

  "%04x:%02x:%02x.%d"

The other three format strings (for bus, device and function) are
changed too, so that we use the same format string as kernel.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-08-05 19:42:15 +02:00

2649 lines
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/*
* node_device_conf.c: config handling for node devices
*
* Copyright (C) 2009-2015 Red Hat, Inc.
* Copyright (C) 2008 Virtual Iron Software, Inc.
* Copyright (C) 2008 David F. Lively
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <unistd.h>
#include "virerror.h"
#include "datatypes.h"
#include "viralloc.h"
#include "virstring.h"
#include "node_device_conf.h"
#include "device_conf.h"
#include "dirname.h"
#include "virxml.h"
#include "virbuffer.h"
#include "viruuid.h"
#include "virrandom.h"
#include "virlog.h"
#include "virfcp.h"
#define VIR_FROM_THIS VIR_FROM_NODEDEV
VIR_LOG_INIT("conf.node_device_conf");
VIR_ENUM_IMPL(virNodeDevDevnode,
VIR_NODE_DEV_DEVNODE_LAST,
"dev",
"link",
);
VIR_ENUM_IMPL(virNodeDevCap,
VIR_NODE_DEV_CAP_LAST,
"system",
"pci",
"usb_device",
"usb",
"net",
"scsi_host",
"scsi_target",
"scsi",
"storage",
"fc_host",
"vports",
"scsi_generic",
"drm",
"mdev_types",
"mdev",
"ccw",
);
VIR_ENUM_IMPL(virNodeDevNetCap,
VIR_NODE_DEV_CAP_NET_LAST,
"80203",
"80211",
);
VIR_ENUM_IMPL(virNodeDevDRM,
VIR_NODE_DEV_DRM_LAST,
"primary",
"control",
"render",
);
static int
virNodeDevCapsDefParseString(const char *xpath,
xmlXPathContextPtr ctxt,
char **string)
{
char *s;
if (!(s = virXPathString(xpath, ctxt)))
return -1;
*string = s;
return 0;
}
void
virNodeDeviceDefFree(virNodeDeviceDefPtr def)
{
virNodeDevCapsDefPtr caps;
if (!def)
return;
VIR_FREE(def->name);
VIR_FREE(def->parent);
VIR_FREE(def->parent_wwnn);
VIR_FREE(def->parent_wwpn);
VIR_FREE(def->parent_fabric_wwn);
VIR_FREE(def->driver);
VIR_FREE(def->sysfs_path);
VIR_FREE(def->parent_sysfs_path);
VIR_FREE(def->devnode);
virStringListFree(def->devlinks);
caps = def->caps;
while (caps) {
virNodeDevCapsDefPtr next = caps->next;
virNodeDevCapsDefFree(caps);
caps = next;
}
VIR_FREE(def);
}
static void
virPCIELinkFormat(virBufferPtr buf,
virPCIELinkPtr lnk,
const char *attrib)
{
if (!lnk)
return;
virBufferAsprintf(buf, "<link validity='%s'", attrib);
if (lnk->port >= 0)
virBufferAsprintf(buf, " port='%d'", lnk->port);
if (lnk->speed)
virBufferAsprintf(buf, " speed='%s'",
virPCIELinkSpeedTypeToString(lnk->speed));
virBufferAsprintf(buf, " width='%d'", lnk->width);
virBufferAddLit(buf, "/>\n");
}
static void
virPCIEDeviceInfoFormat(virBufferPtr buf,
virPCIEDeviceInfoPtr info)
{
if (!info->link_cap && !info->link_sta) {
virBufferAddLit(buf, "<pci-express/>\n");
return;
}
virBufferAddLit(buf, "<pci-express>\n");
virBufferAdjustIndent(buf, 2);
virPCIELinkFormat(buf, info->link_cap, "cap");
virPCIELinkFormat(buf, info->link_sta, "sta");
virBufferAdjustIndent(buf, -2);
virBufferAddLit(buf, "</pci-express>\n");
}
static void
virNodeDeviceCapSystemDefFormat(virBufferPtr buf,
const virNodeDevCapData *data)
{
char uuidstr[VIR_UUID_STRING_BUFLEN];
if (data->system.product_name)
virBufferEscapeString(buf, "<product>%s</product>\n",
data->system.product_name);
virBufferAddLit(buf, "<hardware>\n");
virBufferAdjustIndent(buf, 2);
if (data->system.hardware.vendor_name)
virBufferEscapeString(buf, "<vendor>%s</vendor>\n",
data->system.hardware.vendor_name);
if (data->system.hardware.version)
virBufferEscapeString(buf, "<version>%s</version>\n",
data->system.hardware.version);
if (data->system.hardware.serial)
virBufferEscapeString(buf, "<serial>%s</serial>\n",
data->system.hardware.serial);
virUUIDFormat(data->system.hardware.uuid, uuidstr);
virBufferAsprintf(buf, "<uuid>%s</uuid>\n", uuidstr);
virBufferAdjustIndent(buf, -2);
virBufferAddLit(buf, "</hardware>\n");
virBufferAddLit(buf, "<firmware>\n");
virBufferAdjustIndent(buf, 2);
if (data->system.firmware.vendor_name)
virBufferEscapeString(buf, "<vendor>%s</vendor>\n",
data->system.firmware.vendor_name);
if (data->system.firmware.version)
virBufferEscapeString(buf, "<version>%s</version>\n",
data->system.firmware.version);
if (data->system.firmware.release_date)
virBufferEscapeString(buf, "<release_date>%s</release_date>\n",
data->system.firmware.release_date);
virBufferAdjustIndent(buf, -2);
virBufferAddLit(buf, "</firmware>\n");
}
static void
virNodeDeviceCapPCIDefFormat(virBufferPtr buf,
const virNodeDevCapData *data)
{
size_t i;
if (data->pci_dev.klass >= 0)
virBufferAsprintf(buf, "<class>0x%.6x</class>\n", data->pci_dev.klass);
virBufferAsprintf(buf, "<domain>%d</domain>\n",
data->pci_dev.domain);
virBufferAsprintf(buf, "<bus>%d</bus>\n", data->pci_dev.bus);
virBufferAsprintf(buf, "<slot>%d</slot>\n",
data->pci_dev.slot);
virBufferAsprintf(buf, "<function>%d</function>\n",
data->pci_dev.function);
virBufferAsprintf(buf, "<product id='0x%04x'",
data->pci_dev.product);
if (data->pci_dev.product_name)
virBufferEscapeString(buf, ">%s</product>\n",
data->pci_dev.product_name);
else
virBufferAddLit(buf, "/>\n");
virBufferAsprintf(buf, "<vendor id='0x%04x'",
data->pci_dev.vendor);
if (data->pci_dev.vendor_name)
virBufferEscapeString(buf, ">%s</vendor>\n",
data->pci_dev.vendor_name);
else
virBufferAddLit(buf, "/>\n");
if (data->pci_dev.flags & VIR_NODE_DEV_CAP_FLAG_PCI_PHYSICAL_FUNCTION) {
virBufferAddLit(buf, "<capability type='phys_function'>\n");
virBufferAdjustIndent(buf, 2);
virBufferAsprintf(buf,
"<address domain='0x%04x' bus='0x%02x' "
"slot='0x%02x' function='0x%d'/>\n",
data->pci_dev.physical_function->domain,
data->pci_dev.physical_function->bus,
data->pci_dev.physical_function->slot,
data->pci_dev.physical_function->function);
virBufferAdjustIndent(buf, -2);
virBufferAddLit(buf, "</capability>\n");
}
if (data->pci_dev.flags & VIR_NODE_DEV_CAP_FLAG_PCI_VIRTUAL_FUNCTION) {
virBufferAddLit(buf, "<capability type='virt_functions'");
if (data->pci_dev.max_virtual_functions)
virBufferAsprintf(buf, " maxCount='%u'",
data->pci_dev.max_virtual_functions);
if (data->pci_dev.num_virtual_functions == 0) {
virBufferAddLit(buf, "/>\n");
} else {
virBufferAddLit(buf, ">\n");
virBufferAdjustIndent(buf, 2);
for (i = 0; i < data->pci_dev.num_virtual_functions; i++) {
virBufferAsprintf(buf,
"<address domain='0x%04x' bus='0x%02x' "
"slot='0x%02x' function='0x%d'/>\n",
data->pci_dev.virtual_functions[i]->domain,
data->pci_dev.virtual_functions[i]->bus,
data->pci_dev.virtual_functions[i]->slot,
data->pci_dev.virtual_functions[i]->function);
}
virBufferAdjustIndent(buf, -2);
virBufferAddLit(buf, "</capability>\n");
}
}
if (data->pci_dev.hdrType) {
virBufferAsprintf(buf, "<capability type='%s'/>\n",
virPCIHeaderTypeToString(data->pci_dev.hdrType));
}
if (data->pci_dev.flags & VIR_NODE_DEV_CAP_FLAG_PCI_MDEV) {
virBufferAddLit(buf, "<capability type='mdev_types'>\n");
virBufferAdjustIndent(buf, 2);
for (i = 0; i < data->pci_dev.nmdev_types; i++) {
virMediatedDeviceTypePtr type = data->pci_dev.mdev_types[i];
virBufferEscapeString(buf, "<type id='%s'>\n", type->id);
virBufferAdjustIndent(buf, 2);
if (type->name)
virBufferEscapeString(buf, "<name>%s</name>\n",
type->name);
virBufferEscapeString(buf, "<deviceAPI>%s</deviceAPI>\n",
type->device_api);
virBufferAsprintf(buf,
"<availableInstances>%u</availableInstances>\n",
type->available_instances);
virBufferAdjustIndent(buf, -2);
virBufferAddLit(buf, "</type>\n");
}
virBufferAdjustIndent(buf, -2);
virBufferAddLit(buf, "</capability>\n");
}
if (data->pci_dev.nIommuGroupDevices) {
virBufferAsprintf(buf, "<iommuGroup number='%d'>\n",
data->pci_dev.iommuGroupNumber);
virBufferAdjustIndent(buf, 2);
for (i = 0; i < data->pci_dev.nIommuGroupDevices; i++) {
virBufferAsprintf(buf,
"<address domain='0x%04x' bus='0x%02x' "
"slot='0x%02x' function='0x%d'/>\n",
data->pci_dev.iommuGroupDevices[i]->domain,
data->pci_dev.iommuGroupDevices[i]->bus,
data->pci_dev.iommuGroupDevices[i]->slot,
data->pci_dev.iommuGroupDevices[i]->function);
}
virBufferAdjustIndent(buf, -2);
virBufferAddLit(buf, "</iommuGroup>\n");
}
if (data->pci_dev.numa_node >= 0)
virBufferAsprintf(buf, "<numa node='%d'/>\n",
data->pci_dev.numa_node);
if (data->pci_dev.flags & VIR_NODE_DEV_CAP_FLAG_PCIE)
virPCIEDeviceInfoFormat(buf, data->pci_dev.pci_express);
}
static void
virNodeDeviceCapUSBDevDefFormat(virBufferPtr buf,
const virNodeDevCapData *data)
{
virBufferAsprintf(buf, "<bus>%d</bus>\n", data->usb_dev.bus);
virBufferAsprintf(buf, "<device>%d</device>\n",
data->usb_dev.device);
virBufferAsprintf(buf, "<product id='0x%04x'",
data->usb_dev.product);
if (data->usb_dev.product_name)
virBufferEscapeString(buf, ">%s</product>\n",
data->usb_dev.product_name);
else
virBufferAddLit(buf, " />\n");
virBufferAsprintf(buf, "<vendor id='0x%04x'",
data->usb_dev.vendor);
if (data->usb_dev.vendor_name)
virBufferEscapeString(buf, ">%s</vendor>\n",
data->usb_dev.vendor_name);
else
virBufferAddLit(buf, " />\n");
}
static void
virNodeDeviceCapUSBInterfaceDefFormat(virBufferPtr buf,
const virNodeDevCapData *data)
{
virBufferAsprintf(buf, "<number>%d</number>\n",
data->usb_if.number);
virBufferAsprintf(buf, "<class>%d</class>\n",
data->usb_if.klass);
virBufferAsprintf(buf, "<subclass>%d</subclass>\n",
data->usb_if.subclass);
virBufferAsprintf(buf, "<protocol>%d</protocol>\n",
data->usb_if.protocol);
if (data->usb_if.description)
virBufferEscapeString(buf,
"<description>%s</description>\n",
data->usb_if.description);
}
static void
virNodeDeviceCapNetDefFormat(virBufferPtr buf,
const virNodeDevCapData *data)
{
size_t i;
virBufferEscapeString(buf, "<interface>%s</interface>\n",
data->net.ifname);
if (data->net.address)
virBufferEscapeString(buf, "<address>%s</address>\n",
data->net.address);
virInterfaceLinkFormat(buf, &data->net.lnk);
if (data->net.features) {
for (i = 0; i < VIR_NET_DEV_FEAT_LAST; i++) {
if (virBitmapIsBitSet(data->net.features, i)) {
virBufferAsprintf(buf, "<feature name='%s'/>\n",
virNetDevFeatureTypeToString(i));
}
}
}
if (data->net.subtype != VIR_NODE_DEV_CAP_NET_LAST) {
const char *subtyp =
virNodeDevNetCapTypeToString(data->net.subtype);
virBufferEscapeString(buf, "<capability type='%s'/>\n",
subtyp);
}
}
static void
virNodeDeviceCapSCSIHostDefFormat(virBufferPtr buf,
const virNodeDevCapData *data)
{
virBufferAsprintf(buf, "<host>%d</host>\n",
data->scsi_host.host);
if (data->scsi_host.unique_id != -1)
virBufferAsprintf(buf, "<unique_id>%d</unique_id>\n",
data->scsi_host.unique_id);
if (data->scsi_host.flags & VIR_NODE_DEV_CAP_FLAG_HBA_FC_HOST) {
virBufferAddLit(buf, "<capability type='fc_host'>\n");
virBufferAdjustIndent(buf, 2);
virBufferEscapeString(buf, "<wwnn>%s</wwnn>\n",
data->scsi_host.wwnn);
virBufferEscapeString(buf, "<wwpn>%s</wwpn>\n",
data->scsi_host.wwpn);
virBufferEscapeString(buf, "<fabric_wwn>%s</fabric_wwn>\n",
data->scsi_host.fabric_wwn);
virBufferAdjustIndent(buf, -2);
virBufferAddLit(buf, "</capability>\n");
}
if (data->scsi_host.flags & VIR_NODE_DEV_CAP_FLAG_HBA_VPORT_OPS) {
virBufferAddLit(buf, "<capability type='vport_ops'>\n");
virBufferAdjustIndent(buf, 2);
virBufferAsprintf(buf, "<max_vports>%d</max_vports>\n",
data->scsi_host.max_vports);
virBufferAsprintf(buf, "<vports>%d</vports>\n",
data->scsi_host.vports);
virBufferAdjustIndent(buf, -2);
virBufferAddLit(buf, "</capability>\n");
}
}
static void
virNodeDeviceCapSCSIDefFormat(virBufferPtr buf,
const virNodeDevCapData *data)
{
virBufferAsprintf(buf, "<host>%d</host>\n", data->scsi.host);
virBufferAsprintf(buf, "<bus>%d</bus>\n", data->scsi.bus);
virBufferAsprintf(buf, "<target>%d</target>\n",
data->scsi.target);
virBufferAsprintf(buf, "<lun>%d</lun>\n", data->scsi.lun);
if (data->scsi.type)
virBufferEscapeString(buf, "<type>%s</type>\n",
data->scsi.type);
}
static void
virNodeDeviceCapStorageDefFormat(virBufferPtr buf,
const virNodeDevCapData *data)
{
virBufferEscapeString(buf, "<block>%s</block>\n",
data->storage.block);
if (data->storage.bus)
virBufferEscapeString(buf, "<bus>%s</bus>\n",
data->storage.bus);
if (data->storage.drive_type)
virBufferEscapeString(buf, "<drive_type>%s</drive_type>\n",
data->storage.drive_type);
if (data->storage.model)
virBufferEscapeString(buf, "<model>%s</model>\n",
data->storage.model);
if (data->storage.vendor)
virBufferEscapeString(buf, "<vendor>%s</vendor>\n",
data->storage.vendor);
if (data->storage.serial)
virBufferEscapeString(buf, "<serial>%s</serial>\n",
data->storage.serial);
if (data->storage.flags & VIR_NODE_DEV_CAP_STORAGE_REMOVABLE) {
int avl = data->storage.flags &
VIR_NODE_DEV_CAP_STORAGE_REMOVABLE_MEDIA_AVAILABLE;
virBufferAddLit(buf, "<capability type='removable'>\n");
virBufferAdjustIndent(buf, 2);
virBufferAsprintf(buf, "<media_available>%d"
"</media_available>\n", avl ? 1 : 0);
virBufferAsprintf(buf, "<media_size>%llu</media_size>\n",
data->storage.removable_media_size);
if (data->storage.media_label)
virBufferEscapeString(buf,
"<media_label>%s</media_label>\n",
data->storage.media_label);
if (data->storage.logical_block_size > 0)
virBufferAsprintf(buf, "<logical_block_size>%llu"
"</logical_block_size>\n",
data->storage.logical_block_size);
if (data->storage.num_blocks > 0)
virBufferAsprintf(buf,
"<num_blocks>%llu</num_blocks>\n",
data->storage.num_blocks);
virBufferAdjustIndent(buf, -2);
virBufferAddLit(buf, "</capability>\n");
} else {
virBufferAsprintf(buf, "<size>%llu</size>\n",
data->storage.size);
if (data->storage.logical_block_size > 0)
virBufferAsprintf(buf, "<logical_block_size>%llu"
"</logical_block_size>\n",
data->storage.logical_block_size);
if (data->storage.num_blocks > 0)
virBufferAsprintf(buf, "<num_blocks>%llu</num_blocks>\n",
data->storage.num_blocks);
}
if (data->storage.flags & VIR_NODE_DEV_CAP_STORAGE_HOTPLUGGABLE)
virBufferAddLit(buf, "<capability type='hotpluggable'/>\n");
}
char *
virNodeDeviceDefFormat(const virNodeDeviceDef *def)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
virNodeDevCapsDefPtr caps;
size_t i = 0;
virBufferAddLit(&buf, "<device>\n");
virBufferAdjustIndent(&buf, 2);
virBufferEscapeString(&buf, "<name>%s</name>\n", def->name);
virBufferEscapeString(&buf, "<path>%s</path>\n", def->sysfs_path);
if (def->devnode)
virBufferEscapeString(&buf, "<devnode type='dev'>%s</devnode>\n",
def->devnode);
if (def->devlinks) {
for (i = 0; def->devlinks[i]; i++)
virBufferEscapeString(&buf, "<devnode type='link'>%s</devnode>\n",
def->devlinks[i]);
}
if (def->parent)
virBufferEscapeString(&buf, "<parent>%s</parent>\n", def->parent);
if (def->driver) {
virBufferAddLit(&buf, "<driver>\n");
virBufferAdjustIndent(&buf, 2);
virBufferEscapeString(&buf, "<name>%s</name>\n", def->driver);
virBufferAdjustIndent(&buf, -2);
virBufferAddLit(&buf, "</driver>\n");
}
for (caps = def->caps; caps; caps = caps->next) {
virNodeDevCapDataPtr data = &caps->data;
virBufferAsprintf(&buf, "<capability type='%s'>\n",
virNodeDevCapTypeToString(caps->data.type));
virBufferAdjustIndent(&buf, 2);
switch (caps->data.type) {
case VIR_NODE_DEV_CAP_SYSTEM:
virNodeDeviceCapSystemDefFormat(&buf, data);
break;
case VIR_NODE_DEV_CAP_PCI_DEV:
virNodeDeviceCapPCIDefFormat(&buf, data);
break;
case VIR_NODE_DEV_CAP_USB_DEV:
virNodeDeviceCapUSBDevDefFormat(&buf, data);
break;
case VIR_NODE_DEV_CAP_USB_INTERFACE:
virNodeDeviceCapUSBInterfaceDefFormat(&buf, data);
break;
case VIR_NODE_DEV_CAP_NET:
virNodeDeviceCapNetDefFormat(&buf, data);
break;
case VIR_NODE_DEV_CAP_SCSI_HOST:
virNodeDeviceCapSCSIHostDefFormat(&buf, data);
break;
case VIR_NODE_DEV_CAP_SCSI_TARGET:
virBufferEscapeString(&buf, "<target>%s</target>\n",
data->scsi_target.name);
if (data->scsi_target.flags & VIR_NODE_DEV_CAP_FLAG_FC_RPORT) {
virBufferAddLit(&buf, "<capability type='fc_remote_port'>\n");
virBufferAdjustIndent(&buf, 2);
virBufferAsprintf(&buf, "<rport>%s</rport>\n",
data->scsi_target.rport);
virBufferAsprintf(&buf, "<wwpn>%s</wwpn>\n",
data->scsi_target.wwpn);
virBufferAdjustIndent(&buf, -2);
virBufferAddLit(&buf, "</capability>\n");
}
break;
case VIR_NODE_DEV_CAP_SCSI:
virNodeDeviceCapSCSIDefFormat(&buf, data);
break;
case VIR_NODE_DEV_CAP_STORAGE:
virNodeDeviceCapStorageDefFormat(&buf, data);
break;
case VIR_NODE_DEV_CAP_SCSI_GENERIC:
virBufferEscapeString(&buf, "<char>%s</char>\n",
data->sg.path);
break;
case VIR_NODE_DEV_CAP_DRM:
virBufferEscapeString(&buf, "<type>%s</type>\n", virNodeDevDRMTypeToString(data->drm.type));
break;
case VIR_NODE_DEV_CAP_MDEV:
virBufferEscapeString(&buf, "<type id='%s'/>\n", data->mdev.type);
virBufferAsprintf(&buf, "<iommuGroup number='%u'/>\n",
data->mdev.iommuGroupNumber);
break;
case VIR_NODE_DEV_CAP_CCW_DEV:
virBufferAsprintf(&buf, "<cssid>0x%x</cssid>\n",
data->ccw_dev.cssid);
virBufferAsprintf(&buf, "<ssid>0x%x</ssid>\n",
data->ccw_dev.ssid);
virBufferAsprintf(&buf, "<devno>0x%04x</devno>\n",
data->ccw_dev.devno);
break;
case VIR_NODE_DEV_CAP_MDEV_TYPES:
case VIR_NODE_DEV_CAP_FC_HOST:
case VIR_NODE_DEV_CAP_VPORTS:
case VIR_NODE_DEV_CAP_LAST:
break;
}
virBufferAdjustIndent(&buf, -2);
virBufferAddLit(&buf, "</capability>\n");
}
virBufferAdjustIndent(&buf, -2);
virBufferAddLit(&buf, "</device>\n");
if (virBufferCheckError(&buf) < 0)
return NULL;
return virBufferContentAndReset(&buf);
}
/**
* virNodeDevCapsDefParseIntOptional:
* @xpath: XPath to evaluate
* @ctxt: Context
* @value: Where to store parsed value
* @def: Node device which is parsed
* @invalid_error_fmt: error message to print on invalid format
*
* Returns: -1 on error (invalid int format under @xpath)
* 0 if @xpath was not found (@value is untouched)
* 1 on success
*/
static int
virNodeDevCapsDefParseIntOptional(const char *xpath,
xmlXPathContextPtr ctxt,
int *value,
virNodeDeviceDefPtr def,
const char *invalid_error_fmt)
{
int ret;
int val;
ret = virXPathInt(xpath, ctxt, &val);
if (ret < -1) {
virReportError(VIR_ERR_INTERNAL_ERROR,
invalid_error_fmt,
def->name);
return -1;
} else if (ret == -1) {
return 0;
}
*value = val;
return 1;
}
static int
virNodeDevCapsDefParseULong(const char *xpath,
xmlXPathContextPtr ctxt,
unsigned *value,
virNodeDeviceDefPtr def,
const char *missing_error_fmt,
const char *invalid_error_fmt)
{
int ret;
unsigned long val;
ret = virXPathULong(xpath, ctxt, &val);
if (ret < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
ret == -1 ? missing_error_fmt : invalid_error_fmt,
def->name);
return -1;
}
*value = val;
return 0;
}
static int
virNodeDevCapsDefParseULongLong(const char *xpath,
xmlXPathContextPtr ctxt,
unsigned long long *value,
virNodeDeviceDefPtr def,
const char *missing_error_fmt,
const char *invalid_error_fmt)
{
int ret;
unsigned long long val;
ret = virXPathULongLong(xpath, ctxt, &val);
if (ret < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
ret == -1 ? missing_error_fmt : invalid_error_fmt,
def->name);
return -1;
}
*value = val;
return 0;
}
static int
virNodeDevCapDRMParseXML(xmlXPathContextPtr ctxt,
virNodeDeviceDefPtr def,
xmlNodePtr node,
virNodeDevCapDRMPtr drm)
{
xmlNodePtr orignode;
int ret = -1, val;
char *type = NULL;
orignode = ctxt->node;
ctxt->node = node;
type = virXPathString("string(./type[1])", ctxt);
if ((val = virNodeDevDRMTypeFromString(type)) < 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unknown drm type '%s' for '%s'"), type, def->name);
goto out;
}
drm->type = val;
ret = 0;
out:
VIR_FREE(type);
ctxt->node = orignode;
return ret;
}
static int
virNodeDevCapCCWParseXML(xmlXPathContextPtr ctxt,
virNodeDeviceDefPtr def,
xmlNodePtr node,
virNodeDevCapCCWPtr ccw_dev)
{
xmlNodePtr orignode;
int ret = -1;
char *cssid = NULL, *ssid = NULL, *devno = NULL;
orignode = ctxt->node;
ctxt->node = node;
if (!(cssid = virXPathString("string(./cssid[1])", ctxt))) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("missing cssid value for '%s'"), def->name);
goto out;
}
if (virStrToLong_uip(cssid, NULL, 0, &ccw_dev->cssid) < 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("invalid cssid value '%s' for '%s'"),
cssid, def->name);
goto out;
}
if (!(ssid = virXPathString("string(./ssid[1])", ctxt))) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("missing ssid value for '%s'"), def->name);
goto out;
}
if (virStrToLong_uip(ssid, NULL, 0, &ccw_dev->ssid) < 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("invalid ssid value '%s' for '%s'"),
cssid, def->name);
goto out;
}
if (!(devno = virXPathString("string(./devno[1])", ctxt))) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("missing devno value for '%s'"), def->name);
goto out;
}
if (virStrToLong_uip(devno, NULL, 16, &ccw_dev->devno) < 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("invalid devno value '%s' for '%s'"),
devno, def->name);
goto out;
}
ret = 0;
out:
ctxt->node = orignode;
VIR_FREE(cssid);
VIR_FREE(ssid);
VIR_FREE(devno);
return ret;
}
static int
virNodeDevCapStorageParseXML(xmlXPathContextPtr ctxt,
virNodeDeviceDefPtr def,
xmlNodePtr node,
virNodeDevCapStoragePtr storage)
{
xmlNodePtr orignode, *nodes = NULL;
size_t i;
int n, ret = -1;
unsigned long long val;
orignode = ctxt->node;
ctxt->node = node;
storage->block = virXPathString("string(./block[1])", ctxt);
if (!storage->block) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("no block device path supplied for '%s'"),
def->name);
goto out;
}
storage->bus = virXPathString("string(./bus[1])", ctxt);
storage->drive_type = virXPathString("string(./drive_type[1])", ctxt);
storage->model = virXPathString("string(./model[1])", ctxt);
storage->vendor = virXPathString("string(./vendor[1])", ctxt);
storage->serial = virXPathString("string(./serial[1])", ctxt);
if ((n = virXPathNodeSet("./capability", ctxt, &nodes)) < 0)
goto out;
for (i = 0; i < n; i++) {
char *type = virXMLPropString(nodes[i], "type");
if (!type) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("missing storage capability type for '%s'"),
def->name);
goto out;
}
if (STREQ(type, "hotpluggable")) {
storage->flags |= VIR_NODE_DEV_CAP_STORAGE_HOTPLUGGABLE;
} else if (STREQ(type, "removable")) {
xmlNodePtr orignode2;
storage->flags |= VIR_NODE_DEV_CAP_STORAGE_REMOVABLE;
orignode2 = ctxt->node;
ctxt->node = nodes[i];
if (virXPathBoolean("count(./media_available[. = '1']) > 0", ctxt))
storage->flags |= VIR_NODE_DEV_CAP_STORAGE_REMOVABLE_MEDIA_AVAILABLE;
storage->media_label = virXPathString("string(./media_label[1])", ctxt);
val = 0;
if (virNodeDevCapsDefParseULongLong("number(./media_size[1])", ctxt, &val, def,
_("no removable media size supplied for '%s'"),
_("invalid removable media size supplied for '%s'")) < 0) {
ctxt->node = orignode2;
VIR_FREE(type);
goto out;
}
storage->removable_media_size = val;
ctxt->node = orignode2;
} else {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown storage capability type '%s' for '%s'"),
type, def->name);
VIR_FREE(type);
goto out;
}
VIR_FREE(type);
}
if (!(storage->flags & VIR_NODE_DEV_CAP_STORAGE_REMOVABLE)) {
val = 0;
if (virNodeDevCapsDefParseULongLong("number(./size[1])", ctxt, &val, def,
_("no size supplied for '%s'"),
_("invalid size supplied for '%s'")) < 0)
goto out;
storage->size = val;
}
ret = 0;
out:
VIR_FREE(nodes);
ctxt->node = orignode;
return ret;
}
static int
virNodeDevCapSCSIParseXML(xmlXPathContextPtr ctxt,
virNodeDeviceDefPtr def,
xmlNodePtr node,
virNodeDevCapSCSIPtr scsi)
{
xmlNodePtr orignode;
int ret = -1;
orignode = ctxt->node;
ctxt->node = node;
if (virNodeDevCapsDefParseULong("number(./host[1])", ctxt,
&scsi->host, def,
_("no SCSI host ID supplied for '%s'"),
_("invalid SCSI host ID supplied for '%s'")) < 0)
goto out;
if (virNodeDevCapsDefParseULong("number(./bus[1])", ctxt,
&scsi->bus, def,
_("no SCSI bus ID supplied for '%s'"),
_("invalid SCSI bus ID supplied for '%s'")) < 0)
goto out;
if (virNodeDevCapsDefParseULong("number(./target[1])", ctxt,
&scsi->target, def,
_("no SCSI target ID supplied for '%s'"),
_("invalid SCSI target ID supplied for '%s'")) < 0)
goto out;
if (virNodeDevCapsDefParseULong("number(./lun[1])", ctxt,
&scsi->lun, def,
_("no SCSI LUN ID supplied for '%s'"),
_("invalid SCSI LUN ID supplied for '%s'")) < 0)
goto out;
scsi->type = virXPathString("string(./type[1])", ctxt);
ret = 0;
out:
ctxt->node = orignode;
return ret;
}
static int
virNodeDevCapSCSITargetParseXML(xmlXPathContextPtr ctxt,
virNodeDeviceDefPtr def,
xmlNodePtr node,
virNodeDevCapSCSITargetPtr scsi_target)
{
xmlNodePtr orignode, *nodes = NULL;
int ret = -1, n = 0;
size_t i;
char *type = NULL;
orignode = ctxt->node;
ctxt->node = node;
scsi_target->name = virXPathString("string(./target[1])", ctxt);
if (!scsi_target->name) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("no target name supplied for '%s'"),
def->name);
goto out;
}
if ((n = virXPathNodeSet("./capability", ctxt, &nodes)) < 0)
goto out;
for (i = 0; i < n; ++i) {
type = virXMLPropString(nodes[i], "type");
if (!type) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("missing type for SCSI target capability for '%s'"),
def->name);
goto out;
}
if (STREQ(type, "fc_remote_port")) {
xmlNodePtr orignode2;
scsi_target->flags |= VIR_NODE_DEV_CAP_FLAG_FC_RPORT;
orignode2 = ctxt->node;
ctxt->node = nodes[i];
if (virNodeDevCapsDefParseString("string(./rport[1])",
ctxt,
&scsi_target->rport) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("missing rport name for '%s'"), def->name);
goto out;
}
if (virNodeDevCapsDefParseString("string(./wwpn[1])",
ctxt, &scsi_target->wwpn) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("missing wwpn identifier for '%s'"),
def->name);
goto out;
}
ctxt->node = orignode2;
} else {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown SCSI target capability type '%s' for '%s'"),
type, def->name);
goto out;
}
VIR_FREE(type);
}
ret = 0;
out:
ctxt->node = orignode;
VIR_FREE(type);
VIR_FREE(nodes);
return ret;
}
static int
virNodeDevCapSCSIHostParseXML(xmlXPathContextPtr ctxt,
virNodeDeviceDefPtr def,
xmlNodePtr node,
virNodeDevCapSCSIHostPtr scsi_host,
int create,
const char *virt_type)
{
xmlNodePtr orignode, *nodes = NULL;
int ret = -1, n = 0;
size_t i;
char *type = NULL;
orignode = ctxt->node;
ctxt->node = node;
if (create == EXISTING_DEVICE) {
if (virNodeDevCapsDefParseULong("number(./host[1])", ctxt,
&scsi_host->host, def,
_("no SCSI host ID supplied for '%s'"),
_("invalid SCSI host ID supplied for '%s'")) < 0) {
goto out;
}
/* Optional unique_id value */
scsi_host->unique_id = -1;
if (virNodeDevCapsDefParseIntOptional("number(./unique_id[1])", ctxt,
&scsi_host->unique_id, def,
_("invalid unique_id supplied for '%s'")) < 0) {
goto out;
}
}
if ((n = virXPathNodeSet("./capability", ctxt, &nodes)) < 0)
goto out;
for (i = 0; i < n; i++) {
type = virXMLPropString(nodes[i], "type");
if (!type) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("missing SCSI host capability type for '%s'"),
def->name);
goto out;
}
if (STREQ(type, "vport_ops")) {
scsi_host->flags |= VIR_NODE_DEV_CAP_FLAG_HBA_VPORT_OPS;
} else if (STREQ(type, "fc_host")) {
xmlNodePtr orignode2;
scsi_host->flags |= VIR_NODE_DEV_CAP_FLAG_HBA_FC_HOST;
orignode2 = ctxt->node;
ctxt->node = nodes[i];
if (virNodeDevCapsDefParseString("string(./wwnn[1])",
ctxt,
&scsi_host->wwnn) < 0) {
if (virRandomGenerateWWN(&scsi_host->wwnn, virt_type) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("no WWNN supplied for '%s', and "
"auto-generation failed"),
def->name);
goto out;
}
}
if (virNodeDevCapsDefParseString("string(./wwpn[1])",
ctxt,
&scsi_host->wwpn) < 0) {
if (virRandomGenerateWWN(&scsi_host->wwpn, virt_type) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("no WWPN supplied for '%s', and "
"auto-generation failed"),
def->name);
goto out;
}
}
if (virNodeDevCapsDefParseString("string(./fabric_wwn[1])",
ctxt,
&scsi_host->fabric_wwn) < 0)
VIR_DEBUG("No fabric_wwn defined for '%s'", def->name);
ctxt->node = orignode2;
} else {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown SCSI host capability type '%s' for '%s'"),
type, def->name);
goto out;
}
VIR_FREE(type);
}
ret = 0;
out:
VIR_FREE(type);
ctxt->node = orignode;
VIR_FREE(nodes);
return ret;
}
static int
virNodeDevCapNetParseXML(xmlXPathContextPtr ctxt,
virNodeDeviceDefPtr def,
xmlNodePtr node,
virNodeDevCapNetPtr net)
{
xmlNodePtr orignode, lnk;
size_t i = -1;
int ret = -1, n = -1;
char *tmp = NULL;
xmlNodePtr *nodes = NULL;
orignode = ctxt->node;
ctxt->node = node;
net->ifname = virXPathString("string(./interface[1])", ctxt);
if (!net->ifname) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("no network interface supplied for '%s'"),
def->name);
goto out;
}
net->address = virXPathString("string(./address[1])", ctxt);
if ((n = virXPathNodeSet("./feature", ctxt, &nodes)) < 0)
goto out;
if (n > 0) {
if (!(net->features = virBitmapNew(VIR_NET_DEV_FEAT_LAST)))
goto out;
}
for (i = 0; i < n; i++) {
int val;
if (!(tmp = virXMLPropString(nodes[i], "name"))) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("missing network device feature name"));
goto out;
}
if ((val = virNetDevFeatureTypeFromString(tmp)) < 0) {
virReportError(VIR_ERR_XML_ERROR,
_("unknown network device feature '%s'"),
tmp);
goto out;
}
ignore_value(virBitmapSetBit(net->features, val));
VIR_FREE(tmp);
}
net->subtype = VIR_NODE_DEV_CAP_NET_LAST;
tmp = virXPathString("string(./capability/@type)", ctxt);
if (tmp) {
int val = virNodeDevNetCapTypeFromString(tmp);
VIR_FREE(tmp);
if (val < 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("invalid network type supplied for '%s'"),
def->name);
goto out;
}
net->subtype = val;
}
lnk = virXPathNode("./link", ctxt);
if (lnk && virInterfaceLinkParseXML(lnk, &net->lnk) < 0)
goto out;
ret = 0;
out:
ctxt->node = orignode;
VIR_FREE(nodes);
VIR_FREE(tmp);
return ret;
}
static int
virNodeDevCapUSBInterfaceParseXML(xmlXPathContextPtr ctxt,
virNodeDeviceDefPtr def,
xmlNodePtr node,
virNodeDevCapUSBIfPtr usb_if)
{
xmlNodePtr orignode;
int ret = -1;
orignode = ctxt->node;
ctxt->node = node;
if (virNodeDevCapsDefParseULong("number(./number[1])", ctxt,
&usb_if->number, def,
_("no USB interface number supplied for '%s'"),
_("invalid USB interface number supplied for '%s'")) < 0)
goto out;
if (virNodeDevCapsDefParseULong("number(./class[1])", ctxt,
&usb_if->klass, def,
_("no USB interface class supplied for '%s'"),
_("invalid USB interface class supplied for '%s'")) < 0)
goto out;
if (virNodeDevCapsDefParseULong("number(./subclass[1])", ctxt,
&usb_if->subclass, def,
_("no USB interface subclass supplied for '%s'"),
_("invalid USB interface subclass supplied for '%s'")) < 0)
goto out;
if (virNodeDevCapsDefParseULong("number(./protocol[1])", ctxt,
&usb_if->protocol, def,
_("no USB interface protocol supplied for '%s'"),
_("invalid USB interface protocol supplied for '%s'")) < 0)
goto out;
usb_if->description = virXPathString("string(./description[1])", ctxt);
ret = 0;
out:
ctxt->node = orignode;
return ret;
}
static int
virNodeDevCapsDefParseHexId(const char *xpath,
xmlXPathContextPtr ctxt,
unsigned *value,
virNodeDeviceDefPtr def,
const char *missing_error_fmt,
const char *invalid_error_fmt)
{
int ret;
unsigned long val;
ret = virXPathULongHex(xpath, ctxt, &val);
if (ret < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
ret == -1 ? missing_error_fmt : invalid_error_fmt,
def->name);
return -1;
}
*value = val;
return 0;
}
static int
virNodeDevCapUSBDevParseXML(xmlXPathContextPtr ctxt,
virNodeDeviceDefPtr def,
xmlNodePtr node,
virNodeDevCapUSBDevPtr usb_dev)
{
xmlNodePtr orignode;
int ret = -1;
orignode = ctxt->node;
ctxt->node = node;
if (virNodeDevCapsDefParseULong("number(./bus[1])", ctxt,
&usb_dev->bus, def,
_("no USB bus number supplied for '%s'"),
_("invalid USB bus number supplied for '%s'")) < 0)
goto out;
if (virNodeDevCapsDefParseULong("number(./device[1])", ctxt,
&usb_dev->device, def,
_("no USB device number supplied for '%s'"),
_("invalid USB device number supplied for '%s'")) < 0)
goto out;
if (virNodeDevCapsDefParseHexId("string(./vendor[1]/@id)", ctxt,
&usb_dev->vendor, def,
_("no USB vendor ID supplied for '%s'"),
_("invalid USB vendor ID supplied for '%s'")) < 0)
goto out;
if (virNodeDevCapsDefParseHexId("string(./product[1]/@id)", ctxt,
&usb_dev->product, def,
_("no USB product ID supplied for '%s'"),
_("invalid USB product ID supplied for '%s'")) < 0)
goto out;
usb_dev->vendor_name = virXPathString("string(./vendor[1])", ctxt);
usb_dev->product_name = virXPathString("string(./product[1])", ctxt);
ret = 0;
out:
ctxt->node = orignode;
return ret;
}
static int
virNodeDevCapPCIDevIommuGroupParseXML(xmlXPathContextPtr ctxt,
xmlNodePtr iommuGroupNode,
virNodeDevCapPCIDevPtr pci_dev)
{
xmlNodePtr origNode = ctxt->node;
xmlNodePtr *addrNodes = NULL;
char *numberStr = NULL;
int nAddrNodes, ret = -1;
size_t i;
virPCIDeviceAddressPtr pciAddr = NULL;
ctxt->node = iommuGroupNode;
numberStr = virXMLPropString(iommuGroupNode, "number");
if (!numberStr) {
virReportError(VIR_ERR_XML_ERROR,
"%s", _("missing iommuGroup number attribute"));
goto cleanup;
}
if (virStrToLong_ui(numberStr, NULL, 10,
&pci_dev->iommuGroupNumber) < 0) {
virReportError(VIR_ERR_XML_ERROR,
_("invalid iommuGroup number attribute '%s'"),
numberStr);
goto cleanup;
}
if ((nAddrNodes = virXPathNodeSet("./address", ctxt, &addrNodes)) < 0)
goto cleanup;
for (i = 0; i < nAddrNodes; i++) {
virPCIDeviceAddress addr = {0};
if (virPCIDeviceAddressParseXML(addrNodes[i], &addr) < 0)
goto cleanup;
if (VIR_ALLOC(pciAddr) < 0)
goto cleanup;
pciAddr->domain = addr.domain;
pciAddr->bus = addr.bus;
pciAddr->slot = addr.slot;
pciAddr->function = addr.function;
if (VIR_APPEND_ELEMENT(pci_dev->iommuGroupDevices,
pci_dev->nIommuGroupDevices,
pciAddr) < 0)
goto cleanup;
}
ret = 0;
cleanup:
ctxt->node = origNode;
VIR_FREE(numberStr);
VIR_FREE(addrNodes);
VIR_FREE(pciAddr);
return ret;
}
static int
virPCIEDeviceInfoLinkParseXML(xmlXPathContextPtr ctxt,
xmlNodePtr linkNode,
virPCIELinkPtr lnk)
{
xmlNodePtr origNode = ctxt->node;
int ret = -1, speed;
char *speedStr = NULL, *portStr = NULL;
ctxt->node = linkNode;
if (virXPathUInt("number(./@width)", ctxt, &lnk->width) < 0) {
virReportError(VIR_ERR_XML_DETAIL, "%s",
_("mandatory attribute 'width' is missing or malformed"));
goto cleanup;
}
if ((speedStr = virXPathString("string(./@speed)", ctxt))) {
if ((speed = virPCIELinkSpeedTypeFromString(speedStr)) < 0) {
virReportError(VIR_ERR_XML_DETAIL,
_("malformed 'speed' attribute: %s"),
speedStr);
goto cleanup;
}
lnk->speed = speed;
}
if ((portStr = virXPathString("string(./@port)", ctxt))) {
if (virStrToLong_i(portStr, NULL, 10, &lnk->port) < 0) {
virReportError(VIR_ERR_XML_DETAIL,
_("malformed 'port' attribute: %s"),
portStr);
goto cleanup;
}
} else {
lnk->port = -1;
}
ret = 0;
cleanup:
VIR_FREE(portStr);
VIR_FREE(speedStr);
ctxt->node = origNode;
return ret;
}
static int
virPCIEDeviceInfoParseXML(xmlXPathContextPtr ctxt,
xmlNodePtr pciExpressNode,
virPCIEDeviceInfoPtr pci_express)
{
xmlNodePtr lnk, origNode = ctxt->node;
int ret = -1;
ctxt->node = pciExpressNode;
if ((lnk = virXPathNode("./link[@validity='cap']", ctxt))) {
if (VIR_ALLOC(pci_express->link_cap) < 0)
goto cleanup;
if (virPCIEDeviceInfoLinkParseXML(ctxt, lnk,
pci_express->link_cap) < 0)
goto cleanup;
}
if ((lnk = virXPathNode("./link[@validity='sta']", ctxt))) {
if (VIR_ALLOC(pci_express->link_sta) < 0)
goto cleanup;
if (virPCIEDeviceInfoLinkParseXML(ctxt, lnk,
pci_express->link_sta) < 0)
goto cleanup;
}
ret = 0;
cleanup:
ctxt->node = origNode;
return ret;
}
static int
virNodeDevPCICapSRIOVPhysicalParseXML(xmlXPathContextPtr ctxt,
virNodeDevCapPCIDevPtr pci_dev)
{
xmlNodePtr address = virXPathNode("./address[1]", ctxt);
if (VIR_ALLOC(pci_dev->physical_function) < 0)
return -1;
if (!address) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("Missing address in 'phys_function' capability"));
return -1;
}
if (virPCIDeviceAddressParseXML(address,
pci_dev->physical_function) < 0)
return -1;
pci_dev->flags |= VIR_NODE_DEV_CAP_FLAG_PCI_PHYSICAL_FUNCTION;
return 0;
}
static int
virNodeDevPCICapSRIOVVirtualParseXML(xmlXPathContextPtr ctxt,
virNodeDevCapPCIDevPtr pci_dev)
{
int ret = -1;
xmlNodePtr *addresses = NULL;
int naddresses = virXPathNodeSet("./address", ctxt, &addresses);
char *maxFuncsStr = virXPathString("string(./@maxCount)", ctxt);
size_t i;
if (naddresses < 0)
goto cleanup;
if (maxFuncsStr &&
virStrToLong_uip(maxFuncsStr, NULL, 10,
&pci_dev->max_virtual_functions) < 0) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("Malformed 'maxCount' parameter"));
goto cleanup;
}
if (VIR_ALLOC_N(pci_dev->virtual_functions, naddresses) < 0)
goto cleanup;
for (i = 0; i < naddresses; i++) {
virPCIDeviceAddressPtr addr = NULL;
if (VIR_ALLOC(addr) < 0)
goto cleanup;
if (virPCIDeviceAddressParseXML(addresses[i], addr) < 0) {
VIR_FREE(addr);
goto cleanup;
}
if (VIR_APPEND_ELEMENT(pci_dev->virtual_functions,
pci_dev->num_virtual_functions,
addr) < 0)
goto cleanup;
}
pci_dev->flags |= VIR_NODE_DEV_CAP_FLAG_PCI_VIRTUAL_FUNCTION;
ret = 0;
cleanup:
VIR_FREE(addresses);
VIR_FREE(maxFuncsStr);
return ret;
}
static int
virNodeDevPCICapMdevTypesParseXML(xmlXPathContextPtr ctxt,
virNodeDevCapPCIDevPtr pci_dev)
{
int ret = -1;
xmlNodePtr orignode = NULL;
xmlNodePtr *nodes = NULL;
int nmdev_types = -1;
virMediatedDeviceTypePtr type = NULL;
size_t i;
if ((nmdev_types = virXPathNodeSet("./type", ctxt, &nodes)) < 0)
goto cleanup;
orignode = ctxt->node;
for (i = 0; i < nmdev_types; i++) {
ctxt->node = nodes[i];
if (VIR_ALLOC(type) < 0)
goto cleanup;
if (!(type->id = virXPathString("string(./@id[1])", ctxt))) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("missing 'id' attribute for mediated device's "
"<type> element"));
goto cleanup;
}
if (!(type->device_api = virXPathString("string(./deviceAPI[1])", ctxt))) {
virReportError(VIR_ERR_XML_ERROR,
_("missing device API for mediated device type '%s'"),
type->id);
goto cleanup;
}
if (virXPathUInt("number(./availableInstances)", ctxt,
&type->available_instances) < 0) {
virReportError(VIR_ERR_XML_ERROR,
_("missing number of available instances for "
"mediated device type '%s'"),
type->id);
goto cleanup;
}
type->name = virXPathString("string(./name)", ctxt);
if (VIR_APPEND_ELEMENT(pci_dev->mdev_types,
pci_dev->nmdev_types, type) < 0)
goto cleanup;
}
pci_dev->flags |= VIR_NODE_DEV_CAP_FLAG_PCI_MDEV;
ret = 0;
cleanup:
VIR_FREE(nodes);
virMediatedDeviceTypeFree(type);
ctxt->node = orignode;
return ret;
}
static int
virNodeDevPCICapabilityParseXML(xmlXPathContextPtr ctxt,
xmlNodePtr node,
virNodeDevCapPCIDevPtr pci_dev)
{
char *type = virXMLPropString(node, "type");
xmlNodePtr orignode = ctxt->node;
int ret = -1;
ctxt->node = node;
if (!type) {
virReportError(VIR_ERR_XML_ERROR, "%s", _("Missing capability type"));
goto cleanup;
}
if (STREQ(type, "phys_function") &&
virNodeDevPCICapSRIOVPhysicalParseXML(ctxt, pci_dev) < 0) {
goto cleanup;
} else if (STREQ(type, "virt_functions") &&
virNodeDevPCICapSRIOVVirtualParseXML(ctxt, pci_dev) < 0) {
goto cleanup;
} else if (STREQ(type, "mdev_types") &&
virNodeDevPCICapMdevTypesParseXML(ctxt, pci_dev) < 0) {
goto cleanup;
} else {
int hdrType = virPCIHeaderTypeFromString(type);
if (hdrType > 0 && !pci_dev->hdrType)
pci_dev->hdrType = hdrType;
}
ret = 0;
cleanup:
VIR_FREE(type);
ctxt->node = orignode;
return ret;
}
static int
virNodeDevCapPCIDevParseXML(xmlXPathContextPtr ctxt,
virNodeDeviceDefPtr def,
xmlNodePtr node,
virNodeDevCapPCIDevPtr pci_dev)
{
xmlNodePtr orignode, iommuGroupNode, pciExpress;
xmlNodePtr *nodes = NULL;
int n = 0;
int ret = -1;
virPCIEDeviceInfoPtr pci_express = NULL;
char *tmp = NULL;
size_t i = 0;
orignode = ctxt->node;
ctxt->node = node;
if ((tmp = virXPathString("string(./class[1])", ctxt))) {
if (virStrToLong_i(tmp, NULL, 16, &pci_dev->klass) < 0 ||
pci_dev->klass > 0xffffff) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("invalid PCI class supplied for '%s'"), def->name);
goto out;
}
VIR_FREE(tmp);
} else {
pci_dev->klass = -1;
}
if (virNodeDevCapsDefParseULong("number(./domain[1])", ctxt,
&pci_dev->domain, def,
_("no PCI domain ID supplied for '%s'"),
_("invalid PCI domain ID supplied for '%s'")) < 0)
goto out;
if (virNodeDevCapsDefParseULong("number(./bus[1])", ctxt,
&pci_dev->bus, def,
_("no PCI bus ID supplied for '%s'"),
_("invalid PCI bus ID supplied for '%s'")) < 0)
goto out;
if (virNodeDevCapsDefParseULong("number(./slot[1])", ctxt,
&pci_dev->slot, def,
_("no PCI slot ID supplied for '%s'"),
_("invalid PCI slot ID supplied for '%s'")) < 0)
goto out;
if (virNodeDevCapsDefParseULong("number(./function[1])", ctxt,
&pci_dev->function, def,
_("no PCI function ID supplied for '%s'"),
_("invalid PCI function ID supplied for '%s'")) < 0)
goto out;
if (virNodeDevCapsDefParseHexId("string(./vendor[1]/@id)", ctxt,
&pci_dev->vendor, def,
_("no PCI vendor ID supplied for '%s'"),
_("invalid PCI vendor ID supplied for '%s'")) < 0)
goto out;
if (virNodeDevCapsDefParseHexId("string(./product[1]/@id)", ctxt,
&pci_dev->product, def,
_("no PCI product ID supplied for '%s'"),
_("invalid PCI product ID supplied for '%s'")) < 0)
goto out;
pci_dev->vendor_name = virXPathString("string(./vendor[1])", ctxt);
pci_dev->product_name = virXPathString("string(./product[1])", ctxt);
if ((n = virXPathNodeSet("./capability", ctxt, &nodes)) < 0)
goto out;
for (i = 0; i < n; i++) {
if (virNodeDevPCICapabilityParseXML(ctxt, nodes[i], pci_dev) < 0)
goto out;
}
VIR_FREE(nodes);
if ((iommuGroupNode = virXPathNode("./iommuGroup[1]", ctxt))) {
if (virNodeDevCapPCIDevIommuGroupParseXML(ctxt, iommuGroupNode,
pci_dev) < 0) {
goto out;
}
}
/* The default value is -1 since zero is valid NUMA node number */
pci_dev->numa_node = -1;
if (virNodeDevCapsDefParseIntOptional("number(./numa[1]/@node)", ctxt,
&pci_dev->numa_node, def,
_("invalid NUMA node ID supplied for '%s'")) < 0)
goto out;
if ((pciExpress = virXPathNode("./pci-express[1]", ctxt))) {
if (VIR_ALLOC(pci_express) < 0)
goto out;
if (virPCIEDeviceInfoParseXML(ctxt, pciExpress, pci_express) < 0)
goto out;
pci_dev->pci_express = pci_express;
pci_express = NULL;
pci_dev->flags |= VIR_NODE_DEV_CAP_FLAG_PCIE;
}
ret = 0;
out:
VIR_FREE(nodes);
VIR_FREE(tmp);
virPCIEDeviceInfoFree(pci_express);
ctxt->node = orignode;
return ret;
}
static int
virNodeDevCapSystemParseXML(xmlXPathContextPtr ctxt,
virNodeDeviceDefPtr def,
xmlNodePtr node,
virNodeDevCapSystemPtr syscap)
{
virNodeDevCapSystemHardwarePtr hardware = &syscap->hardware;
virNodeDevCapSystemFirmwarePtr firmware = &syscap->firmware;
xmlNodePtr orignode;
int ret = -1;
char *tmp;
orignode = ctxt->node;
ctxt->node = node;
syscap->product_name = virXPathString("string(./product[1])", ctxt);
hardware->vendor_name = virXPathString("string(./hardware/vendor[1])", ctxt);
hardware->version = virXPathString("string(./hardware/version[1])", ctxt);
hardware->serial = virXPathString("string(./hardware/serial[1])", ctxt);
tmp = virXPathString("string(./hardware/uuid[1])", ctxt);
if (!tmp) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("no system UUID supplied for '%s'"), def->name);
goto out;
}
if (virUUIDParse(tmp, hardware->uuid) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("malformed uuid element for '%s'"), def->name);
VIR_FREE(tmp);
goto out;
}
VIR_FREE(tmp);
firmware->vendor_name = virXPathString("string(./firmware/vendor[1])", ctxt);
firmware->version = virXPathString("string(./firmware/version[1])", ctxt);
firmware->release_date = virXPathString("string(./firmware/release_date[1])", ctxt);
ret = 0;
out:
ctxt->node = orignode;
return ret;
}
static int
virNodeDevCapMdevParseXML(xmlXPathContextPtr ctxt,
virNodeDeviceDefPtr def,
xmlNodePtr node,
virNodeDevCapMdevPtr mdev)
{
xmlNodePtr orignode;
int ret = -1;
orignode = ctxt->node;
ctxt->node = node;
if (!(mdev->type = virXPathString("string(./type[1]/@id)", ctxt))) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("missing type id attribute for '%s'"), def->name);
goto out;
}
if (virNodeDevCapsDefParseULong("number(./iommuGroup[1]/@number)", ctxt,
&mdev->iommuGroupNumber, def,
_("missing iommuGroup number attribute for "
"'%s'"),
_("invalid iommuGroup number attribute for "
"'%s'")) < 0)
goto out;
ret = 0;
out:
ctxt->node = orignode;
return ret;
}
static virNodeDevCapsDefPtr
virNodeDevCapsDefParseXML(xmlXPathContextPtr ctxt,
virNodeDeviceDefPtr def,
xmlNodePtr node,
int create,
const char *virt_type)
{
virNodeDevCapsDefPtr caps;
char *tmp;
int val, ret = -1;
if (VIR_ALLOC(caps) < 0)
return NULL;
tmp = virXMLPropString(node, "type");
if (!tmp) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing capability type"));
goto error;
}
if ((val = virNodeDevCapTypeFromString(tmp)) < 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unknown capability type '%s'"), tmp);
VIR_FREE(tmp);
goto error;
}
caps->data.type = val;
VIR_FREE(tmp);
switch (caps->data.type) {
case VIR_NODE_DEV_CAP_SYSTEM:
ret = virNodeDevCapSystemParseXML(ctxt, def, node, &caps->data.system);
break;
case VIR_NODE_DEV_CAP_PCI_DEV:
ret = virNodeDevCapPCIDevParseXML(ctxt, def, node, &caps->data.pci_dev);
break;
case VIR_NODE_DEV_CAP_USB_DEV:
ret = virNodeDevCapUSBDevParseXML(ctxt, def, node, &caps->data.usb_dev);
break;
case VIR_NODE_DEV_CAP_USB_INTERFACE:
ret = virNodeDevCapUSBInterfaceParseXML(ctxt, def, node,
&caps->data.usb_if);
break;
case VIR_NODE_DEV_CAP_NET:
ret = virNodeDevCapNetParseXML(ctxt, def, node, &caps->data.net);
break;
case VIR_NODE_DEV_CAP_SCSI_HOST:
ret = virNodeDevCapSCSIHostParseXML(ctxt, def, node,
&caps->data.scsi_host,
create,
virt_type);
break;
case VIR_NODE_DEV_CAP_SCSI_TARGET:
ret = virNodeDevCapSCSITargetParseXML(ctxt, def, node,
&caps->data.scsi_target);
break;
case VIR_NODE_DEV_CAP_SCSI:
ret = virNodeDevCapSCSIParseXML(ctxt, def, node, &caps->data.scsi);
break;
case VIR_NODE_DEV_CAP_STORAGE:
ret = virNodeDevCapStorageParseXML(ctxt, def, node,
&caps->data.storage);
break;
case VIR_NODE_DEV_CAP_DRM:
ret = virNodeDevCapDRMParseXML(ctxt, def, node, &caps->data.drm);
break;
case VIR_NODE_DEV_CAP_MDEV:
ret = virNodeDevCapMdevParseXML(ctxt, def, node, &caps->data.mdev);
break;
case VIR_NODE_DEV_CAP_CCW_DEV:
ret = virNodeDevCapCCWParseXML(ctxt, def, node, &caps->data.ccw_dev);
break;
case VIR_NODE_DEV_CAP_MDEV_TYPES:
case VIR_NODE_DEV_CAP_FC_HOST:
case VIR_NODE_DEV_CAP_VPORTS:
case VIR_NODE_DEV_CAP_SCSI_GENERIC:
case VIR_NODE_DEV_CAP_LAST:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown capability type '%d' for '%s'"),
caps->data.type, def->name);
ret = -1;
break;
}
if (ret < 0)
goto error;
return caps;
error:
virNodeDevCapsDefFree(caps);
return NULL;
}
static virNodeDeviceDefPtr
virNodeDeviceDefParseXML(xmlXPathContextPtr ctxt,
int create,
const char *virt_type)
{
virNodeDeviceDefPtr def;
virNodeDevCapsDefPtr *next_cap;
xmlNodePtr *nodes = NULL;
int n, m;
size_t i;
if (VIR_ALLOC(def) < 0)
return NULL;
/* Extract device name */
if (create == EXISTING_DEVICE) {
def->name = virXPathString("string(./name[1])", ctxt);
if (!def->name) {
virReportError(VIR_ERR_NO_NAME, NULL);
goto error;
}
} else {
if (VIR_STRDUP(def->name, "new device") < 0)
goto error;
}
def->sysfs_path = virXPathString("string(./path[1])", ctxt);
/* Parse devnodes */
if ((n = virXPathNodeSet("./devnode", ctxt, &nodes)) < 0)
goto error;
if (VIR_ALLOC_N(def->devlinks, n + 1) < 0)
goto error;
for (i = 0, m = 0; i < n; i++) {
xmlNodePtr node = nodes[i];
char *tmp = virXMLPropString(node, "type");
int val;
if (!tmp) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing devnode type"));
goto error;
}
val = virNodeDevDevnodeTypeFromString(tmp);
if (val < 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unknown devnode type '%s'"), tmp);
VIR_FREE(tmp);
goto error;
}
VIR_FREE(tmp);
switch ((virNodeDevDevnodeType)val) {
case VIR_NODE_DEV_DEVNODE_DEV:
def->devnode = (char*)xmlNodeGetContent(node);
break;
case VIR_NODE_DEV_DEVNODE_LINK:
def->devlinks[m++] = (char*)xmlNodeGetContent(node);
break;
case VIR_NODE_DEV_DEVNODE_LAST:
break;
}
}
/* Extract device parent, if any */
def->parent = virXPathString("string(./parent[1])", ctxt);
def->parent_wwnn = virXPathString("string(./parent[1]/@wwnn)", ctxt);
def->parent_wwpn = virXPathString("string(./parent[1]/@wwpn)", ctxt);
if (def->parent_wwnn && !def->parent_wwpn) {
virReportError(VIR_ERR_XML_ERROR,
_("when providing parent wwnn='%s', the "
"wwpn must also be provided"),
def->parent_wwnn);
goto error;
}
if (!def->parent_wwnn && def->parent_wwpn) {
virReportError(VIR_ERR_XML_ERROR,
_("when providing parent wwpn='%s', the "
"wwnn must also be provided"),
def->parent_wwpn);
goto error;
}
def->parent_fabric_wwn = virXPathString("string(./parent[1]/@fabric_wwn)",
ctxt);
/* Parse device capabilities */
VIR_FREE(nodes);
if ((n = virXPathNodeSet("./capability", ctxt, &nodes)) < 0)
goto error;
if (n == 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("no device capabilities for '%s'"),
def->name);
goto error;
}
next_cap = &def->caps;
for (i = 0; i < n; i++) {
*next_cap = virNodeDevCapsDefParseXML(ctxt, def,
nodes[i],
create,
virt_type);
if (!*next_cap)
goto error;
next_cap = &(*next_cap)->next;
}
VIR_FREE(nodes);
return def;
error:
virNodeDeviceDefFree(def);
VIR_FREE(nodes);
return NULL;
}
virNodeDeviceDefPtr
virNodeDeviceDefParseNode(xmlDocPtr xml,
xmlNodePtr root,
int create,
const char *virt_type)
{
xmlXPathContextPtr ctxt = NULL;
virNodeDeviceDefPtr def = NULL;
if (!virXMLNodeNameEqual(root, "device")) {
virReportError(VIR_ERR_XML_ERROR,
_("unexpected root element <%s> "
"expecting <device>"),
root->name);
return NULL;
}
ctxt = xmlXPathNewContext(xml);
if (ctxt == NULL) {
virReportOOMError();
goto cleanup;
}
ctxt->node = root;
def = virNodeDeviceDefParseXML(ctxt, create, virt_type);
cleanup:
xmlXPathFreeContext(ctxt);
return def;
}
static virNodeDeviceDefPtr
virNodeDeviceDefParse(const char *str,
const char *filename,
int create,
const char *virt_type)
{
xmlDocPtr xml;
virNodeDeviceDefPtr def = NULL;
if ((xml = virXMLParse(filename, str, _("(node_device_definition)")))) {
def = virNodeDeviceDefParseNode(xml, xmlDocGetRootElement(xml),
create, virt_type);
xmlFreeDoc(xml);
}
return def;
}
virNodeDeviceDefPtr
virNodeDeviceDefParseString(const char *str,
int create,
const char *virt_type)
{
return virNodeDeviceDefParse(str, NULL, create, virt_type);
}
virNodeDeviceDefPtr
virNodeDeviceDefParseFile(const char *filename,
int create,
const char *virt_type)
{
return virNodeDeviceDefParse(NULL, filename, create, virt_type);
}
/*
* Return fc_host dev's WWNN and WWPN
*/
int
virNodeDeviceGetWWNs(virNodeDeviceDefPtr def,
char **wwnn,
char **wwpn)
{
virNodeDevCapsDefPtr cap = NULL;
int ret = -1;
cap = def->caps;
while (cap != NULL) {
if (cap->data.type == VIR_NODE_DEV_CAP_SCSI_HOST &&
cap->data.scsi_host.flags & VIR_NODE_DEV_CAP_FLAG_HBA_FC_HOST) {
if (VIR_STRDUP(*wwnn, cap->data.scsi_host.wwnn) < 0 ||
VIR_STRDUP(*wwpn, cap->data.scsi_host.wwpn) < 0) {
/* Free the other one, if allocated... */
VIR_FREE(*wwnn);
goto cleanup;
}
break;
}
cap = cap->next;
}
if (cap == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("Device is not a fibre channel HBA"));
goto cleanup;
}
ret = 0;
cleanup:
return ret;
}
void
virNodeDevCapsDefFree(virNodeDevCapsDefPtr caps)
{
size_t i = 0;
virNodeDevCapDataPtr data = &caps->data;
switch (caps->data.type) {
case VIR_NODE_DEV_CAP_SYSTEM:
VIR_FREE(data->system.product_name);
VIR_FREE(data->system.hardware.vendor_name);
VIR_FREE(data->system.hardware.version);
VIR_FREE(data->system.hardware.serial);
VIR_FREE(data->system.firmware.vendor_name);
VIR_FREE(data->system.firmware.version);
VIR_FREE(data->system.firmware.release_date);
break;
case VIR_NODE_DEV_CAP_PCI_DEV:
VIR_FREE(data->pci_dev.product_name);
VIR_FREE(data->pci_dev.vendor_name);
VIR_FREE(data->pci_dev.physical_function);
for (i = 0; i < data->pci_dev.num_virtual_functions; i++)
VIR_FREE(data->pci_dev.virtual_functions[i]);
VIR_FREE(data->pci_dev.virtual_functions);
for (i = 0; i < data->pci_dev.nIommuGroupDevices; i++)
VIR_FREE(data->pci_dev.iommuGroupDevices[i]);
VIR_FREE(data->pci_dev.iommuGroupDevices);
virPCIEDeviceInfoFree(data->pci_dev.pci_express);
for (i = 0; i < data->pci_dev.nmdev_types; i++)
virMediatedDeviceTypeFree(data->pci_dev.mdev_types[i]);
VIR_FREE(data->pci_dev.mdev_types);
break;
case VIR_NODE_DEV_CAP_USB_DEV:
VIR_FREE(data->usb_dev.product_name);
VIR_FREE(data->usb_dev.vendor_name);
break;
case VIR_NODE_DEV_CAP_USB_INTERFACE:
VIR_FREE(data->usb_if.description);
break;
case VIR_NODE_DEV_CAP_NET:
VIR_FREE(data->net.ifname);
VIR_FREE(data->net.address);
virBitmapFree(data->net.features);
data->net.features = NULL;
break;
case VIR_NODE_DEV_CAP_SCSI_HOST:
VIR_FREE(data->scsi_host.wwnn);
VIR_FREE(data->scsi_host.wwpn);
VIR_FREE(data->scsi_host.fabric_wwn);
break;
case VIR_NODE_DEV_CAP_SCSI_TARGET:
VIR_FREE(data->scsi_target.name);
VIR_FREE(data->scsi_target.rport);
VIR_FREE(data->scsi_target.wwpn);
break;
case VIR_NODE_DEV_CAP_SCSI:
VIR_FREE(data->scsi.type);
break;
case VIR_NODE_DEV_CAP_STORAGE:
VIR_FREE(data->storage.block);
VIR_FREE(data->storage.bus);
VIR_FREE(data->storage.drive_type);
VIR_FREE(data->storage.model);
VIR_FREE(data->storage.vendor);
VIR_FREE(data->storage.serial);
VIR_FREE(data->storage.media_label);
break;
case VIR_NODE_DEV_CAP_SCSI_GENERIC:
VIR_FREE(data->sg.path);
break;
case VIR_NODE_DEV_CAP_MDEV:
VIR_FREE(data->mdev.type);
break;
case VIR_NODE_DEV_CAP_MDEV_TYPES:
case VIR_NODE_DEV_CAP_DRM:
case VIR_NODE_DEV_CAP_FC_HOST:
case VIR_NODE_DEV_CAP_VPORTS:
case VIR_NODE_DEV_CAP_CCW_DEV:
case VIR_NODE_DEV_CAP_LAST:
/* This case is here to shutup the compiler */
break;
}
VIR_FREE(caps);
}
int
virNodeDeviceUpdateCaps(virNodeDeviceDefPtr def)
{
virNodeDevCapsDefPtr cap = def->caps;
while (cap) {
switch (cap->data.type) {
case VIR_NODE_DEV_CAP_SCSI_HOST:
virNodeDeviceGetSCSIHostCaps(&cap->data.scsi_host);
break;
case VIR_NODE_DEV_CAP_SCSI_TARGET:
virNodeDeviceGetSCSITargetCaps(def->sysfs_path,
&cap->data.scsi_target);
break;
case VIR_NODE_DEV_CAP_NET:
if (virNetDevGetLinkInfo(cap->data.net.ifname,
&cap->data.net.lnk) < 0)
return -1;
virBitmapFree(cap->data.net.features);
if (virNetDevGetFeatures(cap->data.net.ifname,
&cap->data.net.features) < 0)
return -1;
break;
case VIR_NODE_DEV_CAP_PCI_DEV:
if (virNodeDeviceGetPCIDynamicCaps(def->sysfs_path,
&cap->data.pci_dev) < 0)
return -1;
break;
/* all types that (supposedly) don't require any updates
* relative to what's in the cache.
*/
case VIR_NODE_DEV_CAP_DRM:
case VIR_NODE_DEV_CAP_SYSTEM:
case VIR_NODE_DEV_CAP_USB_DEV:
case VIR_NODE_DEV_CAP_USB_INTERFACE:
case VIR_NODE_DEV_CAP_SCSI:
case VIR_NODE_DEV_CAP_STORAGE:
case VIR_NODE_DEV_CAP_FC_HOST:
case VIR_NODE_DEV_CAP_VPORTS:
case VIR_NODE_DEV_CAP_SCSI_GENERIC:
case VIR_NODE_DEV_CAP_MDEV_TYPES:
case VIR_NODE_DEV_CAP_MDEV:
case VIR_NODE_DEV_CAP_CCW_DEV:
case VIR_NODE_DEV_CAP_LAST:
break;
}
cap = cap->next;
}
return 0;
}
/**
* virNodeDeviceCapsListExport:
* @def: node device definition
* @list: pointer to an array to store all supported capabilities by a device
*
* Takes the definition, scans through all the capabilities that the device
* supports (including the nested caps) and populates a newly allocated list
* with them. Caller is responsible for freeing the list.
* If NULL is passed to @list, only the number of caps will be returned.
*
* Returns the number of capabilities the device supports, -1 on error.
*/
int
virNodeDeviceCapsListExport(virNodeDeviceDefPtr def,
virNodeDevCapType **list)
{
virNodeDevCapsDefPtr caps = NULL;
virNodeDevCapType *tmp = NULL;
bool want_list = !!list;
int ncaps = 0;
int ret = -1;
#define MAYBE_ADD_CAP(cap) \
do { \
if (want_list) \
tmp[ncaps] = cap; \
} while (0)
if (virNodeDeviceUpdateCaps(def) < 0)
goto cleanup;
if (want_list && VIR_ALLOC_N(tmp, VIR_NODE_DEV_CAP_LAST - 1) < 0)
goto cleanup;
for (caps = def->caps; caps; caps = caps->next) {
unsigned int flags;
MAYBE_ADD_CAP(caps->data.type);
ncaps++;
/* check nested caps for a given type as well */
if (caps->data.type == VIR_NODE_DEV_CAP_SCSI_HOST) {
flags = caps->data.scsi_host.flags;
if (flags & VIR_NODE_DEV_CAP_FLAG_HBA_FC_HOST) {
MAYBE_ADD_CAP(VIR_NODE_DEV_CAP_FC_HOST);
ncaps++;
}
if (flags & VIR_NODE_DEV_CAP_FLAG_HBA_VPORT_OPS) {
MAYBE_ADD_CAP(VIR_NODE_DEV_CAP_VPORTS);
ncaps++;
}
}
if (caps->data.type == VIR_NODE_DEV_CAP_PCI_DEV) {
flags = caps->data.pci_dev.flags;
if (flags & VIR_NODE_DEV_CAP_FLAG_PCI_MDEV) {
MAYBE_ADD_CAP(VIR_NODE_DEV_CAP_MDEV_TYPES);
ncaps++;
}
}
}
#undef MAYBE_ADD_CAP
if (want_list)
VIR_STEAL_PTR(*list, tmp);
ret = ncaps;
cleanup:
VIR_FREE(tmp);
return ret;
}
#ifdef __linux__
int
virNodeDeviceGetSCSIHostCaps(virNodeDevCapSCSIHostPtr scsi_host)
{
char *tmp = NULL;
int ret = -1;
if ((scsi_host->unique_id =
virSCSIHostGetUniqueId(NULL, scsi_host->host)) < 0) {
VIR_DEBUG("Failed to read unique_id for host%d", scsi_host->host);
scsi_host->unique_id = -1;
}
VIR_DEBUG("Checking if host%d is an FC HBA", scsi_host->host);
if (virVHBAPathExists(NULL, scsi_host->host)) {
scsi_host->flags |= VIR_NODE_DEV_CAP_FLAG_HBA_FC_HOST;
if (!(tmp = virVHBAGetConfig(NULL, scsi_host->host, "port_name"))) {
VIR_WARN("Failed to read WWPN for host%d", scsi_host->host);
goto cleanup;
}
VIR_FREE(scsi_host->wwpn);
VIR_STEAL_PTR(scsi_host->wwpn, tmp);
if (!(tmp = virVHBAGetConfig(NULL, scsi_host->host, "node_name"))) {
VIR_WARN("Failed to read WWNN for host%d", scsi_host->host);
goto cleanup;
}
VIR_FREE(scsi_host->wwnn);
VIR_STEAL_PTR(scsi_host->wwnn, tmp);
if ((tmp = virVHBAGetConfig(NULL, scsi_host->host, "fabric_name"))) {
VIR_FREE(scsi_host->fabric_wwn);
VIR_STEAL_PTR(scsi_host->fabric_wwn, tmp);
}
}
if (virVHBAIsVportCapable(NULL, scsi_host->host)) {
scsi_host->flags |= VIR_NODE_DEV_CAP_FLAG_HBA_VPORT_OPS;
if (!(tmp = virVHBAGetConfig(NULL, scsi_host->host,
"max_npiv_vports"))) {
VIR_WARN("Failed to read max_npiv_vports for host%d",
scsi_host->host);
goto cleanup;
}
if (virStrToLong_i(tmp, NULL, 10, &scsi_host->max_vports) < 0) {
VIR_WARN("Failed to parse value of max_npiv_vports '%s'", tmp);
goto cleanup;
}
VIR_FREE(tmp);
if (!(tmp = virVHBAGetConfig(NULL, scsi_host->host,
"npiv_vports_inuse"))) {
VIR_WARN("Failed to read npiv_vports_inuse for host%d",
scsi_host->host);
goto cleanup;
}
if (virStrToLong_i(tmp, NULL, 10, &scsi_host->vports) < 0) {
VIR_WARN("Failed to parse value of npiv_vports_inuse '%s'", tmp);
goto cleanup;
}
}
ret = 0;
cleanup:
if (ret < 0) {
/* Clear the two flags in case of producing confusing XML output */
scsi_host->flags &= ~(VIR_NODE_DEV_CAP_FLAG_HBA_FC_HOST |
VIR_NODE_DEV_CAP_FLAG_HBA_VPORT_OPS);
VIR_FREE(scsi_host->wwnn);
VIR_FREE(scsi_host->wwpn);
VIR_FREE(scsi_host->fabric_wwn);
}
VIR_FREE(tmp);
return ret;
}
int
virNodeDeviceGetSCSITargetCaps(const char *sysfsPath,
virNodeDevCapSCSITargetPtr scsi_target)
{
int ret = -1;
char *dir = NULL, *rport = NULL;
VIR_DEBUG("Checking if '%s' is an FC remote port", scsi_target->name);
/* /sys/devices/[...]/host0/rport-0:0-0/target0:0:0 -> rport-0:0-0 */
if (!(dir = mdir_name(sysfsPath)))
return -1;
if (VIR_STRDUP(rport, last_component(dir)) < 0)
goto cleanup;
if (!virFCIsCapableRport(rport))
goto cleanup;
VIR_FREE(scsi_target->rport);
VIR_STEAL_PTR(scsi_target->rport, rport);
if (virFCReadRportValue(scsi_target->rport, "port_name",
&scsi_target->wwpn) < 0) {
VIR_WARN("Failed to read port_name for '%s'", scsi_target->rport);
goto cleanup;
}
scsi_target->flags |= VIR_NODE_DEV_CAP_FLAG_FC_RPORT;
ret = 0;
cleanup:
if (ret < 0) {
VIR_FREE(scsi_target->rport);
VIR_FREE(scsi_target->wwpn);
scsi_target->flags &= ~VIR_NODE_DEV_CAP_FLAG_FC_RPORT;
}
VIR_FREE(rport);
VIR_FREE(dir);
return ret;
}
static int
virNodeDeviceGetPCISRIOVCaps(const char *sysfsPath,
virNodeDevCapPCIDevPtr pci_dev)
{
size_t i;
int ret;
/* this could be a refresh, so clear out the old data */
for (i = 0; i < pci_dev->num_virtual_functions; i++)
VIR_FREE(pci_dev->virtual_functions[i]);
VIR_FREE(pci_dev->virtual_functions);
pci_dev->num_virtual_functions = 0;
pci_dev->max_virtual_functions = 0;
pci_dev->flags &= ~VIR_NODE_DEV_CAP_FLAG_PCI_VIRTUAL_FUNCTION;
pci_dev->flags &= ~VIR_NODE_DEV_CAP_FLAG_PCI_PHYSICAL_FUNCTION;
ret = virPCIGetPhysicalFunction(sysfsPath,
&pci_dev->physical_function);
if (ret < 0)
goto cleanup;
if (pci_dev->physical_function)
pci_dev->flags |= VIR_NODE_DEV_CAP_FLAG_PCI_PHYSICAL_FUNCTION;
ret = virPCIGetVirtualFunctions(sysfsPath, &pci_dev->virtual_functions,
&pci_dev->num_virtual_functions,
&pci_dev->max_virtual_functions);
if (ret < 0)
goto cleanup;
if (pci_dev->num_virtual_functions > 0 ||
pci_dev->max_virtual_functions > 0)
pci_dev->flags |= VIR_NODE_DEV_CAP_FLAG_PCI_VIRTUAL_FUNCTION;
cleanup:
return ret;
}
static int
virNodeDeviceGetPCIIOMMUGroupCaps(virNodeDevCapPCIDevPtr pci_dev)
{
size_t i;
int tmpGroup, ret = -1;
virPCIDeviceAddress addr;
/* this could be a refresh, so clear out the old data */
for (i = 0; i < pci_dev->nIommuGroupDevices; i++)
VIR_FREE(pci_dev->iommuGroupDevices[i]);
VIR_FREE(pci_dev->iommuGroupDevices);
pci_dev->nIommuGroupDevices = 0;
pci_dev->iommuGroupNumber = 0;
addr.domain = pci_dev->domain;
addr.bus = pci_dev->bus;
addr.slot = pci_dev->slot;
addr.function = pci_dev->function;
tmpGroup = virPCIDeviceAddressGetIOMMUGroupNum(&addr);
if (tmpGroup == -1) {
/* error was already reported */
goto cleanup;
}
if (tmpGroup == -2) {
/* -2 return means there is no iommu_group data */
ret = 0;
goto cleanup;
}
if (tmpGroup >= 0) {
if (virPCIDeviceAddressGetIOMMUGroupAddresses(&addr, &pci_dev->iommuGroupDevices,
&pci_dev->nIommuGroupDevices) < 0)
goto cleanup;
pci_dev->iommuGroupNumber = tmpGroup;
}
ret = 0;
cleanup:
return ret;
}
static int
virNodeDeviceGetPCIMdevTypesCaps(const char *sysfspath,
virNodeDevCapPCIDevPtr pci_dev)
{
virMediatedDeviceTypePtr *types = NULL;
int rc = 0;
size_t i;
/* this could be a refresh, so clear out the old data */
for (i = 0; i < pci_dev->nmdev_types; i++)
virMediatedDeviceTypeFree(pci_dev->mdev_types[i]);
VIR_FREE(pci_dev->mdev_types);
pci_dev->nmdev_types = 0;
pci_dev->flags &= ~VIR_NODE_DEV_CAP_FLAG_PCI_MDEV;
rc = virPCIGetMdevTypes(sysfspath, &types);
if (rc <= 0)
return rc;
VIR_STEAL_PTR(pci_dev->mdev_types, types);
pci_dev->nmdev_types = rc;
pci_dev->flags |= VIR_NODE_DEV_CAP_FLAG_PCI_MDEV;
return 0;
}
/* virNodeDeviceGetPCIDynamicCaps() get info that is stored in sysfs
* about devices related to this device, i.e. things that can change
* without this device itself changing. These must be refreshed
* anytime full XML of the device is requested, because they can
* change with no corresponding notification from the kernel/udev.
*/
int
virNodeDeviceGetPCIDynamicCaps(const char *sysfsPath,
virNodeDevCapPCIDevPtr pci_dev)
{
if (virNodeDeviceGetPCISRIOVCaps(sysfsPath, pci_dev) < 0 ||
virNodeDeviceGetPCIIOMMUGroupCaps(pci_dev) < 0 ||
virNodeDeviceGetPCIMdevTypesCaps(sysfsPath, pci_dev) < 0)
return -1;
return 0;
}
#else
int
virNodeDeviceGetSCSIHostCaps(virNodeDevCapSCSIHostPtr scsi_host ATTRIBUTE_UNUSED)
{
return -1;
}
int
virNodeDeviceGetPCIDynamicCaps(const char *sysfsPath ATTRIBUTE_UNUSED,
virNodeDevCapPCIDevPtr pci_dev ATTRIBUTE_UNUSED)
{
return -1;
}
int virNodeDeviceGetSCSITargetCaps(const char *sysfsPath ATTRIBUTE_UNUSED,
virNodeDevCapSCSITargetPtr scsi_target ATTRIBUTE_UNUSED)
{
return -1;
}
#endif /* __linux__ */
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