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Fix multiple formatting problems in HTML docs The rule generating the HTML docs passing the --html flag to xsltproc. This makes it use the legacy HTML parser, which either ignores or tries to fix all sorts of broken XML tags. There's no reason why we should be writing broken XML in the first place, so removing --html and adding the XHTML doctype to all files forces us to create good XML. This adds the XHTML doc type and fixes many, many XML tag problems it exposes. Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-05-03 22:25:37 +08:00
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
Split website out into one file per page. APply new layout and styling
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<body>
<h1>Node devices XML format</h1>
docs: document node device XML Coupled with the recent virsh nodedev-* doc patch, this should now give a better picture of libvirt node device handling. * docs/formatnode.html.in: Fill in page.
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<ul id="toc"></ul>
<h2><a name="NodedevAttributes">Node Device XML</a></h2>
<p>
There are several libvirt functions, all with the
prefix <code>virNodeDevice</code>, which deal with management of
host devices that can be handed to guests via passthrough as
&lt;hostdev&gt; elements
doc: Fix reference to #elementsUSB aae0fc2a922b3e31dae7648c547fca2ac2587625 removed the #elementsUSB anchor but did not update the links to point to the new section #elementsHostDev. Signed-off-by: Philipp Hahn <hahn@univention.de>
2013-06-29 01:06:30 +08:00
in <a href="formatdomain.html#elementsHostDev">the domain XML</a>.
docs: document node device XML Coupled with the recent virsh nodedev-* doc patch, this should now give a better picture of libvirt node device handling. * docs/formatnode.html.in: Fill in page.
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These devices are represented as a hierarchy, where a device on
a bus has a parent of the bus controller device; the root of the
hierarchy is the node named "computer".
</p>
<p>
When represented in XML, a node device uses the
top-level <code>device</code> element, with the following
elements present according to the type of device:
</p>
<dl>
<dt><code>name</code></dt>
<dd>The name for this device. The name will be alphanumeric,
with words separated by underscore. For many devices, the
name is just the bus type and address, as in
"pci_0000_00_02_1" or "usb_1_5_3", but some devices are able
to provide more specific names, such as
"net_eth1_00_27_13_6a_fe_00".
</dd>
<dt><code>parent</code></dt>
<dd>If this element is present, it names the parent device (that
is, a controller to which this node belongs).
</dd>
<dt><code>capability</code></dt>
<dd>This node appears for each capability that libvirt
associates with a node. A mandatory
attribute <code>type</code> lists which category the device
belongs to, and controls which further subelements will be
present to describe the node:
<dl>
<dt><code>system</code></dt>
<dd>Describes the overall host. Sub-elements include:
<dl>
<dt><code>product</code></dt>
<dd>If present, a simple text string giving the product
name of the system.</dd>
<dt><code>hardware</code></dt>
<dd>Describes the hardware of the system, including
sub-elements for <code>vendor</code>, <code>version</code>,
<code>serial</code>, and <code>uuid</code>.</dd>
<dt><code>firmware</code></dt>
<dd>Describes the firmware of the system, including
sub-elements for <code>vendor</code>, <code>version</code>,
and <code>release_date</code>.</dd>
</dl>
</dd>
<dt><code>pci</code></dt>
<dd>Describes a device on the host's PCI bus. Sub-elements
include:
<dl>
<dt><code>domain</code></dt>
<dd>Which domain the device belongs to.</dd>
<dt><code>bus</code></dt>
<dd>Which bus within the domain.</dd>
<dt><code>slot</code></dt>
<dd>Which slot within the bus.</dd>
<dt><code>function</code></dt>
<dd>Which function within the slot.</dd>
<dt><code>product</code></dt>
<dd>Product details from the device ROM, including an
attribute <code>id</code> with the hexadecimal product
id, and an optional text description of that id.</dd>
<dt><code>vendor</code></dt>
<dd>Vendor details from the device ROM, including an
attribute <code>id</code> with the hexadecimal vendor
id, and an optional text name of that vendor.</dd>
nodedev: add iommuGroup to node device object This includes adding it to the nodedev parser and formatter, docs, and test. An example of the new iommuGroup element that is a part of the output from "virsh nodedev-dumpxml" (virNodeDeviceGetXMLDesc()): <device> <name>pci_0000_02_00_1</name> <capability type='pci'> ... <iommuGroup number='12'> <address domain='0x0000' bus='0x02' slot='0x00' function='0x0'/> <address domain='0x0000' bus='0x02' slot='0x00' function='0x1'/> </iommuGroup> </capability> </device>
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<dt><code>iommuGroup</code></dt>
<dd>
This optional element describes the "IOMMU group" this
device belongs to. If the element exists, it has a
mandatory <code>number</code> attribute which tells
the group number used for management of the group (all
devices in group "n" will be found in
"/sys/kernel/iommu_groups/n"). It will also have a
list of <code>address</code> subelements, each
containing the PCI address of a device in the same
group. The toplevel device will itself be included in
this list.
</dd>
<dt><code>capability</code></dt>
<dd>
This optional element can occur multiple times. If it
exists, it has a mandatory <code>type</code> attribute
which will be set to
either <code>physical_function</code>
or <code>virtual_functions</code>. If the type
is <code>physical_function</code>, there will be a
single <code>address</code> subelement which contains
the PCI address of the SRIOV Physical Function (PF)
that is the parent of this device (and this device is,
by implication, an SRIOV Virtual Function (VF)). If
the type is <code>virtual_functions</code>, then this
device is an SRIOV PF, and the capability element will
have a list of <code>address</code> subelements, one
for each VF on this PF.
</dd>
nodedev: Export NUMA node locality for PCI devices A PCI device can be associated with a specific NUMA node. Later, when a guest is pinned to one NUMA node the PCI device can be assigned on different NUMA node. This makes DMA transfers travel across nodes and thus results in suboptimal performance. We should expose the NUMA node locality for PCI devices so management applications can make better decisions. Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2014-05-08 00:07:12 +08:00
<dt><code>numa</code></dt>
<dd>
This optional element contains information on the PCI device
with respect to NUMA. For example, the optional
<code>node</code> attribute tells which NUMA node is the PCI
device associated with.
</dd>
nodedev: Introduce <pci-express/> to PCI devices This new element is there to represent PCI-Express capabilities of a PCI devices, like link speed, number of lanes, etc. Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2014-05-15 16:13:45 +08:00
<dt><code>pci-express</code></dt>
<dd>
This optional element contains information on PCI Express part of
the device. For example, it can contain a child element
<code>link</code> which addresses the PCI Express device's link.
While a device has it's own capabilities
(<code>validity='cap'</code>), the actual run time capabilities
are negotiated on the device initialization
(<code>validity='sta'</code>). The <code>link</code> element then
contains three attributes: <code>port</code> which says in which
port is the device plugged in, <code>speed</code> (in
GigaTransfers per second) and <code>width</code> for the number
of lanes used. Since the port can't be negotiated, it's not
exposed in <code>./pci-express/link/[@validity='sta']</code>.
</dd>
docs: document node device XML Coupled with the recent virsh nodedev-* doc patch, this should now give a better picture of libvirt node device handling. * docs/formatnode.html.in: Fill in page.
2011-09-28 01:04:52 +08:00
</dl>
</dd>
<dt><code>usb_device</code></dt>
<dd>Describes a device on the host's USB bus, based on its
location within the bus. Sub-elements include:
<dl>
<dt><code>bus</code></dt>
<dd>Which bus the device belongs to.</dd>
<dt><code>device</code></dt>
<dd>Which device within the bus.</dd>
<dt><code>product</code></dt>
<dd>Product details from the device ROM, including an
attribute <code>id</code> with the hexadecimal product
id, and an optional text description of that id.</dd>
<dt><code>vendor</code></dt>
<dd>Vendor details from the device ROM, including an
attribute <code>id</code> with the hexadecimal vendor
id, and an optional text name of that vendor.</dd>
</dl>
</dd>
<dt><code>usb</code></dt>
<dd>Describes a USB device, based on its advertised driver
interface. Sub-elements include:
<dl>
<dt><code>number</code></dt>
<dd>The device number.</dd>
docs: fix usb node device sub-element names
2013-08-15 17:36:11 +08:00
<dt><code>class</code></dt>
docs: document node device XML Coupled with the recent virsh nodedev-* doc patch, this should now give a better picture of libvirt node device handling. * docs/formatnode.html.in: Fill in page.
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<dd>The device class.</dd>
docs: fix usb node device sub-element names
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<dt><code>subclass</code></dt>
docs: document node device XML Coupled with the recent virsh nodedev-* doc patch, this should now give a better picture of libvirt node device handling. * docs/formatnode.html.in: Fill in page.
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<dd>The device subclass.</dd>
docs: fix usb node device sub-element names
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<dt><code>protocol</code></dt>
docs: document node device XML Coupled with the recent virsh nodedev-* doc patch, this should now give a better picture of libvirt node device handling. * docs/formatnode.html.in: Fill in page.
2011-09-28 01:04:52 +08:00
<dd>The device protocol.</dd>
<dt><code>description</code></dt>
<dd>If present, a description of the device.</dd>
</dl>
</dd>
<dt><code>net</code></dt>
<dd>Describes a device capable for use as a network
interface. Sub-elements include:
<dl>
<dt><code>interface</code></dt>
<dd>The interface name tied to this device.</dd>
<dt><code>address</code></dt>
<dd>If present, the MAC address of the device.</dd>
node_device: Expose link state & speed While exposing the info under <interface/> in previous patch works, it may work only in cases where interface is configured on the host. However, orchestrating application may want to know the link state and speed even in that case. That's why we ought to expose this in nodedev XML too: virsh # nodedev-dumpxml net_eth0_f0_de_f1_2b_1b_f3 <device> <name>net_eth0_f0_de_f1_2b_1b_f3</name> <path>/sys/devices/pci0000:00/0000:00:19.0/net/eth0</path> <parent>pci_0000_00_19_0</parent> <capability type='net'> <interface>eth0</interface> <address>f0:de:f1:2b:1b:f3</address> <link speed='1000' state='up'/> <capability type='80203'/> </capability> </device> Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2014-06-05 23:36:31 +08:00
<dt><code>link</code></dt>
<dd>Optional to reflect the status of the link. It has
two optional attributes: <code>speed</code> in Mbits per
second and <code>state</code> to tell the state of the
link. So far, the whole element is just for output,
not setting.
</dd>
docs: document node device XML Coupled with the recent virsh nodedev-* doc patch, this should now give a better picture of libvirt node device handling. * docs/formatnode.html.in: Fill in page.
2011-09-28 01:04:52 +08:00
<dt><code>capability</code></dt>
<dd>A network protocol exposed by the device, where the
attribute <code>type</code> can be "80203" for IEEE
802.3, or "80211" for various flavors of IEEE 802.11.
npiv: Expose fabric_name outside This patch is to expose the fabric_name of fc_host class, which might be useful for users who wants to known which fabric the (v)HBA connects to. The patch also adds the missed capabilities' XML schema of scsi_host, (of course, with fabric_wwn added), and update the documents (docs/formatnode.html.in)
2011-12-06 20:09:03 +08:00
</dd>
docs: document node device XML Coupled with the recent virsh nodedev-* doc patch, this should now give a better picture of libvirt node device handling. * docs/formatnode.html.in: Fill in page.
2011-09-28 01:04:52 +08:00
</dl>
</dd>
<dt><code>scsi_host</code></dt>
<dd>Describes a SCSI host device. Sub-elements include:
<dl>
<dt><code>host</code></dt>
<dd>The SCSI host number.</dd>
npiv: Expose fabric_name outside This patch is to expose the fabric_name of fc_host class, which might be useful for users who wants to known which fabric the (v)HBA connects to. The patch also adds the missed capabilities' XML schema of scsi_host, (of course, with fabric_wwn added), and update the documents (docs/formatnode.html.in)
2011-12-06 20:09:03 +08:00
<dt><code>capability</code></dt>
<dd>Current capabilities include "vports_ops" (indicates
nodedev: Dump max vports and vports in use for HBA's XML This enrichs HBA's xml by dumping the number of max vports and vports in use. Format is like: <capability type='vport_ops'> <max_vports>164</max_vports> <vports>5</vports> </capability> * docs/formatnode.html.in: (Document the new XML) * docs/schemas/nodedev.rng: (Add the schema) * src/conf/node_device_conf.h: (New member for data.scsi_host) * src/node_device/node_device_linux_sysfs.c: (Collect the value of max_vports and vports)
2013-01-08 01:05:32 +08:00
vport operations are supported) and "fc_host". "vport_ops"
could contain two optional sub-elements: <code>vports</code>,
and <code>max_vports</code>. <code>vports</code> shows the
number of vport in use. <code>max_vports</code> shows the
maximum vports the HBA supports. "fc_host" implies following
sub-elements: <code>wwnn</code>, <code>wwpn</code>, and
<code>fabric_wwn</code>.
npiv: Expose fabric_name outside This patch is to expose the fabric_name of fc_host class, which might be useful for users who wants to known which fabric the (v)HBA connects to. The patch also adds the missed capabilities' XML schema of scsi_host, (of course, with fabric_wwn added), and update the documents (docs/formatnode.html.in)
2011-12-06 20:09:03 +08:00
</dd>
docs: document node device XML Coupled with the recent virsh nodedev-* doc patch, this should now give a better picture of libvirt node device handling. * docs/formatnode.html.in: Fill in page.
2011-09-28 01:04:52 +08:00
</dl>
</dd>
<dt><code>scsi</code></dt>
Fix some typos in messages, docs and comments.
2012-08-23 02:29:18 +08:00
<dd>Describes a SCSI device. Sub-elements include:
docs: document node device XML Coupled with the recent virsh nodedev-* doc patch, this should now give a better picture of libvirt node device handling. * docs/formatnode.html.in: Fill in page.
2011-09-28 01:04:52 +08:00
<dl>
<dt><code>host</code></dt>
<dd>The SCSI host containing the device.</dd>
<dt><code>bus</code></dt>
<dd>The bus within the host.</dd>
<dt><code>target</code></dt>
<dd>The target within the bus.</dd>
<dt><code>lun</code></dt>
<dd>The lun within the target.</dd>
<dt><code>type</code></dt>
<dd>The type of SCSI device.</dd>
</dl>
</dd>
<dt><code>storage</code></dt>
<dd>Describes a device usable for storage. Sub-elements
include:
<dl>
<dt><code>block</code></dt>
<dd>A block device file name that accesses the storage
present on the device.</dd>
<dt><code>bus</code></dt>
<dd>If present, the name of the bus the device is found
on.</dd>
<dt><code>drive_type</code></dt>
<dd>The type of the drive, such as "disk" or
"cdrom".</dd>
<dt><code>model</code></dt>
<dd>Any model information available from the
device.</dd>
<dt><code>vendor</code></dt>
<dd>Any vendor information available from the
device.</dd>
<dt><code>serial</code></dt>
<dd>Any serial number information available from the
device.</dd>
<dt><code>size</code></dt>
<dd>For fixed-size storage, the amount of storage
available.</dd>
<dt><code>capability</code></dt>
<dd>If present, an additional capability is listed via
Fix some typos in messages, docs and comments.
2012-08-23 02:29:18 +08:00
the attribute <code>type</code>. Current capabilities
docs: document node device XML Coupled with the recent virsh nodedev-* doc patch, this should now give a better picture of libvirt node device handling. * docs/formatnode.html.in: Fill in page.
2011-09-28 01:04:52 +08:00
include "hotpluggable" and "removable", with the
latter implying the following
sub-elements: <code>media_available</code> (0 or
1), <code>media_size</code>,
and <code>media_label</code>.</dd>
</dl>
</dd>
</dl>
</dd>
</dl>
<h2><a name="nodeExample">Examples</a></h2>
<p>The following are some example node device XML outputs:</p>
<pre>
&lt;device&gt;
&lt;name&gt;computer&lt;/name&gt;
&lt;capability type='system'&gt;
&lt;product&gt;2241B36&lt;/product&gt;
&lt;hardware&gt;
&lt;vendor&gt;LENOVO&lt;/vendor&gt;
&lt;version&gt;ThinkPad T500&lt;/version&gt;
&lt;serial&gt;R89055N&lt;/serial&gt;
&lt;uuid&gt;c9488981-5049-11cb-9c1c-993d0230b4cd&lt;/uuid&gt;
&lt;/hardware&gt;
&lt;firmware&gt;
&lt;vendor&gt;LENOVO&lt;/vendor&gt;
&lt;version&gt;6FET82WW (3.12 )&lt;/version&gt;
&lt;release_date&gt;11/26/2009&lt;/release_date&gt;
&lt;/firmware&gt;
&lt;/capability&gt;
&lt;/device&gt;
&lt;device&gt;
&lt;name&gt;net_eth1_00_27_13_6a_fe_00&lt;/name&gt;
&lt;parent&gt;pci_0000_00_19_0&lt;/parent&gt;
&lt;capability type='net'&gt;
&lt;interface&gt;eth1&lt;/interface&gt;
&lt;address&gt;00:27:13:6a:fe:00&lt;/address&gt;
&lt;capability type='80203'/&gt;
&lt;/capability&gt;
nodedev: add iommuGroup to node device object This includes adding it to the nodedev parser and formatter, docs, and test. An example of the new iommuGroup element that is a part of the output from "virsh nodedev-dumpxml" (virNodeDeviceGetXMLDesc()): <device> <name>pci_0000_02_00_1</name> <capability type='pci'> ... <iommuGroup number='12'> <address domain='0x0000' bus='0x02' slot='0x00' function='0x0'/> <address domain='0x0000' bus='0x02' slot='0x00' function='0x1'/> </iommuGroup> </capability> </device>
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&lt;/device&gt;
&lt;device&gt;
&lt;name&gt;pci_0000_02_00_0&lt;/name&gt;
&lt;path&gt;/sys/devices/pci0000:00/0000:00:04.0/0000:02:00.0&lt;/path&gt;
&lt;parent&gt;pci_0000_00_04_0&lt;/parent&gt;
&lt;driver&gt;
&lt;name&gt;igb&lt;/name&gt;
&lt;/driver&gt;
&lt;capability type='pci'&gt;
&lt;domain&gt;0&lt;/domain&gt;
&lt;bus&gt;2&lt;/bus&gt;
&lt;slot&gt;0&lt;/slot&gt;
&lt;function&gt;0&lt;/function&gt;
&lt;product id='0x10c9'&gt;82576 Gigabit Network Connection&lt;/product&gt;
&lt;vendor id='0x8086'&gt;Intel Corporation&lt;/vendor&gt;
&lt;capability type='virt_functions'&gt;
&lt;address domain='0x0000' bus='0x02' slot='0x10' function='0x0'/&gt;
&lt;address domain='0x0000' bus='0x02' slot='0x10' function='0x2'/&gt;
&lt;address domain='0x0000' bus='0x02' slot='0x10' function='0x4'/&gt;
&lt;address domain='0x0000' bus='0x02' slot='0x10' function='0x6'/&gt;
&lt;address domain='0x0000' bus='0x02' slot='0x11' function='0x0'/&gt;
&lt;address domain='0x0000' bus='0x02' slot='0x11' function='0x2'/&gt;
&lt;address domain='0x0000' bus='0x02' slot='0x11' function='0x4'/&gt;
&lt;/capability&gt;
&lt;iommuGroup number='12'&gt;
&lt;address domain='0x0000' bus='0x02' slot='0x00' function='0x0'/&gt;
&lt;address domain='0x0000' bus='0x02' slot='0x00' function='0x1'/&gt;
&lt;/iommuGroup&gt;
nodedev: Introduce <pci-express/> to PCI devices This new element is there to represent PCI-Express capabilities of a PCI devices, like link speed, number of lanes, etc. Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2014-05-15 16:13:45 +08:00
&lt;pci-express&gt;
&lt;link validity='cap' port='1' speed='2.5' width='1'/&gt;
&lt;link validity='sta' speed='2.5' width='1'/&gt;
&lt;/pci-express&gt;
nodedev: add iommuGroup to node device object This includes adding it to the nodedev parser and formatter, docs, and test. An example of the new iommuGroup element that is a part of the output from "virsh nodedev-dumpxml" (virNodeDeviceGetXMLDesc()): <device> <name>pci_0000_02_00_1</name> <capability type='pci'> ... <iommuGroup number='12'> <address domain='0x0000' bus='0x02' slot='0x00' function='0x0'/> <address domain='0x0000' bus='0x02' slot='0x00' function='0x1'/> </iommuGroup> </capability> </device>
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&lt;/capability&gt;
&lt;/device&gt;
</pre>
docs: document node device XML Coupled with the recent virsh nodedev-* doc patch, this should now give a better picture of libvirt node device handling. * docs/formatnode.html.in: Fill in page.
2011-09-28 01:04:52 +08:00
Split website out into one file per page. APply new layout and styling
2008-04-24 01:08:31 +08:00
</body>
</html>