[libvirt PATCH v2 2/6] conf: parse/format <teaming> subelement of <interface>
Laine Stump
laine at redhat.com
Fri Jan 24 15:39:17 UTC 2020
The subelement <teaming> of <interface> devices is used to configure a
simple teaming association between two interfaces in a domain. Example:
<interface type='bridge'>
<source bridge='br0'/>
<model type='virtio'/>
<mac address='00:11:22:33:44:55'/>
<alias name='ua-backup0'/>
<teaming type='persistent'/>
</interface>
<interface type='hostdev'>
<source>
<address type='pci' bus='0x02' slot='0x10' function='0x4'/>
</source>
<mac address='00:11:22:33:44:55'/>
<teaming type='transient' persistent='ua-backup0'/>
</interface>
The interface with <teaming type='persistent'/> is assumed to always
be present, while the interface with type='transient' may be be
unplugged and later re-plugged; the persistent='blah' attribute (and
in the one currently available implementation, also the matching MAC
addresses) is what associates the two devices with each other. It is
up to the hypervisor and the guest network drivers to determine what
to do with this information.
Signed-off-by: Laine Stump <laine at redhat.com>
---
docs/schemas/domaincommon.rng | 19 ++++++
src/conf/domain_conf.c | 45 +++++++++++++
src/conf/domain_conf.h | 14 ++++
.../net-virtio-teaming-network.xml | 37 +++++++++++
tests/qemuxml2argvdata/net-virtio-teaming.xml | 50 ++++++++++++++
.../net-virtio-teaming-network.xml | 51 ++++++++++++++
.../qemuxml2xmloutdata/net-virtio-teaming.xml | 66 +++++++++++++++++++
tests/qemuxml2xmltest.c | 6 ++
8 files changed, 288 insertions(+)
create mode 100644 tests/qemuxml2argvdata/net-virtio-teaming-network.xml
create mode 100644 tests/qemuxml2argvdata/net-virtio-teaming.xml
create mode 100644 tests/qemuxml2xmloutdata/net-virtio-teaming-network.xml
create mode 100644 tests/qemuxml2xmloutdata/net-virtio-teaming.xml
diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index 76d94b156f..026e753567 100644
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -3158,6 +3158,25 @@
<optional>
<ref name="vlan"/>
</optional>
+ <optional>
+ <element name="teaming">
+ <choice>
+ <group>
+ <attribute name="type">
+ <value>persistent</value>
+ </attribute>
+ </group>
+ <group>
+ <attribute name="type">
+ <value>transient</value>
+ </attribute>
+ <attribute name="persistent">
+ <ref name="aliasName"/>
+ </attribute>
+ </group>
+ </choice>
+ </element>
+ </optional>
</interleave>
</define>
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index f920d1dc39..ea719e5989 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -554,6 +554,13 @@ VIR_ENUM_IMPL(virDomainNetVirtioTxMode,
"timer",
);
+VIR_ENUM_IMPL(virDomainNetTeaming,
+ VIR_DOMAIN_NET_TEAMING_TYPE_LAST,
+ "none",
+ "persistent",
+ "transient",
+);
+
VIR_ENUM_IMPL(virDomainNetInterfaceLinkState,
VIR_DOMAIN_NET_INTERFACE_LINK_STATE_LAST,
"default",
@@ -6276,6 +6283,21 @@ virDomainNetDefValidate(const virDomainNetDef *net)
virDomainNetTypeToString(net->type));
return -1;
}
+
+ if (net->teaming.type == VIR_DOMAIN_NET_TEAMING_TYPE_TRANSIENT) {
+ if (!net->teaming.persistent) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+ _("teaming persistent attribute must be set if teaming type is 'transient'"));
+ return -1;
+ }
+ } else {
+ if (net->teaming.persistent) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("teaming persistent attribute not allowed if teaming type is '%s'"),
+ virDomainNetTeamingTypeToString(net->teaming.type));
+ return -1;
+ }
+ }
return 0;
}
@@ -11574,6 +11596,8 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt,
g_autofree char *vhostuser_type = NULL;
g_autofree char *trustGuestRxFilters = NULL;
g_autofree char *vhost_path = NULL;
+ g_autofree char *teamingType = NULL;
+ g_autofree char *teamingPersistent = NULL;
const char *prefix = xmlopt ? xmlopt->config.netPrefix : NULL;
if (!(def = virDomainNetDefNew(xmlopt)))
@@ -11775,6 +11799,10 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt,
if (!vhost_path && (tmp = virXMLPropString(cur, "vhost")))
vhost_path = virFileSanitizePath(tmp);
VIR_FREE(tmp);
+ } else if (virXMLNodeNameEqual(cur, "teaming") &&
+ !teamingType && !teamingPersistent) {
+ teamingType = virXMLPropString(cur, "type");
+ teamingPersistent = virXMLPropString(cur, "persistent");
}
}
cur = cur->next;
@@ -12296,6 +12324,17 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt,
}
}
+ if (teamingType) {
+ if ((def->teaming.type
+ = virDomainNetTeamingTypeFromString(teamingType)) <= 0) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("unknown teaming type '%s'"),
+ teamingType);
+ goto error;
+ }
+ }
+ def->teaming.persistent = g_steal_pointer(&teamingPersistent);
+
rv = virXPathULong("string(./tune/sndbuf)", ctxt, &def->tune.sndbuf);
if (rv >= 0) {
def->tune.sndbuf_specified = true;
@@ -25741,6 +25780,12 @@ virDomainNetDefFormat(virBufferPtr buf,
virBufferAddLit(buf, "</tune>\n");
}
+ if (def->teaming.type != VIR_DOMAIN_NET_TEAMING_TYPE_NONE) {
+ virBufferAsprintf(buf, "<teaming type='%s'",
+ virDomainNetTeamingTypeToString(def->teaming.type));
+ virBufferEscapeString(buf, " persistent='%s'", def->teaming.persistent);
+ virBufferAddLit(buf, "/>\n");
+ }
if (def->linkstate) {
virBufferAsprintf(buf, "<link state='%s'/>\n",
virDomainNetInterfaceLinkStateTypeToString(def->linkstate));
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 6ae89fa498..ee8eb3ddc0 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -884,6 +884,15 @@ typedef enum {
VIR_DOMAIN_NET_VIRTIO_TX_MODE_LAST
} virDomainNetVirtioTxModeType;
+/* the type of teaming device */
+typedef enum {
+ VIR_DOMAIN_NET_TEAMING_TYPE_NONE,
+ VIR_DOMAIN_NET_TEAMING_TYPE_PERSISTENT,
+ VIR_DOMAIN_NET_TEAMING_TYPE_TRANSIENT,
+
+ VIR_DOMAIN_NET_TEAMING_TYPE_LAST
+} virDomainNetTeamingType;
+
/* link interface states */
typedef enum {
VIR_DOMAIN_NET_INTERFACE_LINK_STATE_DEFAULT = 0, /* Default link state (up) */
@@ -958,6 +967,10 @@ struct _virDomainNetDef {
char *tap;
char *vhost;
} backend;
+ struct {
+ virDomainNetTeamingType type;
+ char *persistent; /* alias name of persistent device */
+ } teaming;
union {
virDomainChrSourceDefPtr vhostuser;
struct {
@@ -3425,6 +3438,7 @@ VIR_ENUM_DECL(virDomainFSModel);
VIR_ENUM_DECL(virDomainNet);
VIR_ENUM_DECL(virDomainNetBackend);
VIR_ENUM_DECL(virDomainNetVirtioTxMode);
+VIR_ENUM_DECL(virDomainNetTeaming);
VIR_ENUM_DECL(virDomainNetInterfaceLinkState);
VIR_ENUM_DECL(virDomainNetModel);
VIR_ENUM_DECL(virDomainChrDevice);
diff --git a/tests/qemuxml2argvdata/net-virtio-teaming-network.xml b/tests/qemuxml2argvdata/net-virtio-teaming-network.xml
new file mode 100644
index 0000000000..edab52f3a1
--- /dev/null
+++ b/tests/qemuxml2argvdata/net-virtio-teaming-network.xml
@@ -0,0 +1,37 @@
+<domain type='qemu'>
+ <name>QEMUGuest1</name>
+ <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+ <memory unit='KiB'>219100</memory>
+ <currentMemory unit='KiB'>219100</currentMemory>
+ <vcpu placement='static'>1</vcpu>
+ <os>
+ <type arch='i686' machine='pc'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/bin/qemu-system-i386</emulator>
+ <disk type='block' device='disk'>
+ <source dev='/dev/HostVG/QEMUGuest1'/>
+ <target dev='hda' bus='ide'/>
+ </disk>
+ <controller type='usb' index='0'/>
+ <interface type='network'>
+ <mac address='00:11:22:33:44:55'/>
+ <source network='mybridge'/>
+ <model type='virtio'/>
+ <teaming type='persistent'/>
+ <alias name='ua-backup0'/>
+ </interface>
+ <interface type='network'>
+ <mac address='00:11:22:33:44:55'/>
+ <source network='myhostdevpool'/>
+ <model type='virtio'/>
+ <teaming type='transient' persistent='ua-backup0'/>
+ </interface>
+ <memballoon model='virtio'/>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2argvdata/net-virtio-teaming.xml b/tests/qemuxml2argvdata/net-virtio-teaming.xml
new file mode 100644
index 0000000000..830ce28524
--- /dev/null
+++ b/tests/qemuxml2argvdata/net-virtio-teaming.xml
@@ -0,0 +1,50 @@
+<domain type='qemu'>
+ <name>QEMUGuest1</name>
+ <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+ <memory unit='KiB'>219100</memory>
+ <currentMemory unit='KiB'>219100</currentMemory>
+ <vcpu placement='static'>1</vcpu>
+ <os>
+ <type arch='i686' machine='pc'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/bin/qemu-system-i386</emulator>
+ <disk type='block' device='disk'>
+ <source dev='/dev/HostVG/QEMUGuest1'/>
+ <target dev='hda' bus='ide'/>
+ </disk>
+ <controller type='usb' index='0'/>
+ <interface type='user'>
+ <mac address='00:11:22:33:44:55'/>
+ <model type='virtio'/>
+ <teaming type='persistent'/>
+ <alias name='ua-backup0'/>
+ </interface>
+ <interface type='user'>
+ <mac address='66:44:33:22:11:00'/>
+ <model type='virtio'/>
+ <teaming type='persistent'/>
+ <alias name='ua-backup1'/>
+ </interface>
+ <interface type='hostdev' managed='yes'>
+ <mac address='00:11:22:33:44:55'/>
+ <source>
+ <address type='pci' domain='0x0000' bus='0x03' slot='0x07' function='0x1'/>
+ </source>
+ <teaming type='transient' persistent='ua-backup0'/>
+ </interface>
+ <interface type='hostdev' managed='yes'>
+ <mac address='66:44:33:22:11:00'/>
+ <source>
+ <address type='pci' domain='0x0000' bus='0x03' slot='0x07' function='0x2'/>
+ </source>
+ <teaming type='transient' persistent='ua-backup1'/>
+ </interface>
+ <memballoon model='virtio'/>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2xmloutdata/net-virtio-teaming-network.xml b/tests/qemuxml2xmloutdata/net-virtio-teaming-network.xml
new file mode 100644
index 0000000000..e0dbeafe02
--- /dev/null
+++ b/tests/qemuxml2xmloutdata/net-virtio-teaming-network.xml
@@ -0,0 +1,51 @@
+<domain type='qemu'>
+ <name>QEMUGuest1</name>
+ <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+ <memory unit='KiB'>219100</memory>
+ <currentMemory unit='KiB'>219100</currentMemory>
+ <vcpu placement='static'>1</vcpu>
+ <os>
+ <type arch='i686' machine='pc'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/bin/qemu-system-i386</emulator>
+ <disk type='block' device='disk'>
+ <driver name='qemu' type='raw'/>
+ <source dev='/dev/HostVG/QEMUGuest1'/>
+ <target dev='hda' bus='ide'/>
+ <address type='drive' controller='0' bus='0' target='0' unit='0'/>
+ </disk>
+ <controller type='usb' index='0'>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
+ </controller>
+ <controller type='pci' index='0' model='pci-root'/>
+ <controller type='ide' index='0'>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
+ </controller>
+ <interface type='network'>
+ <mac address='00:11:22:33:44:55'/>
+ <source network='mybridge'/>
+ <model type='virtio'/>
+ <teaming type='persistent'/>
+ <alias name='ua-backup0'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
+ </interface>
+ <interface type='network'>
+ <mac address='00:11:22:33:44:55'/>
+ <source network='myhostdevpool'/>
+ <model type='virtio'/>
+ <teaming type='transient' persistent='ua-backup0'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
+ </interface>
+ <input type='mouse' bus='ps2'/>
+ <input type='keyboard' bus='ps2'/>
+ <memballoon model='virtio'>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
+ </memballoon>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2xmloutdata/net-virtio-teaming.xml b/tests/qemuxml2xmloutdata/net-virtio-teaming.xml
new file mode 100644
index 0000000000..5a5695794a
--- /dev/null
+++ b/tests/qemuxml2xmloutdata/net-virtio-teaming.xml
@@ -0,0 +1,66 @@
+<domain type='qemu'>
+ <name>QEMUGuest1</name>
+ <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+ <memory unit='KiB'>219100</memory>
+ <currentMemory unit='KiB'>219100</currentMemory>
+ <vcpu placement='static'>1</vcpu>
+ <os>
+ <type arch='i686' machine='pc'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/bin/qemu-system-i386</emulator>
+ <disk type='block' device='disk'>
+ <driver name='qemu' type='raw'/>
+ <source dev='/dev/HostVG/QEMUGuest1'/>
+ <target dev='hda' bus='ide'/>
+ <address type='drive' controller='0' bus='0' target='0' unit='0'/>
+ </disk>
+ <controller type='usb' index='0'>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
+ </controller>
+ <controller type='pci' index='0' model='pci-root'/>
+ <controller type='ide' index='0'>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
+ </controller>
+ <interface type='user'>
+ <mac address='00:11:22:33:44:55'/>
+ <model type='virtio'/>
+ <teaming type='persistent'/>
+ <alias name='ua-backup0'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
+ </interface>
+ <interface type='user'>
+ <mac address='66:44:33:22:11:00'/>
+ <model type='virtio'/>
+ <teaming type='persistent'/>
+ <alias name='ua-backup1'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
+ </interface>
+ <interface type='hostdev' managed='yes'>
+ <mac address='00:11:22:33:44:55'/>
+ <source>
+ <address type='pci' domain='0x0000' bus='0x03' slot='0x07' function='0x1'/>
+ </source>
+ <teaming type='transient' persistent='ua-backup0'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
+ </interface>
+ <interface type='hostdev' managed='yes'>
+ <mac address='66:44:33:22:11:00'/>
+ <source>
+ <address type='pci' domain='0x0000' bus='0x03' slot='0x07' function='0x2'/>
+ </source>
+ <teaming type='transient' persistent='ua-backup1'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
+ </interface>
+ <input type='mouse' bus='ps2'/>
+ <input type='keyboard' bus='ps2'/>
+ <memballoon model='virtio'>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
+ </memballoon>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
index 3cefc64833..e54c540ef6 100644
--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
@@ -451,6 +451,12 @@ mymain(void)
DO_TEST("net-eth-unmanaged-tap", NONE);
DO_TEST("net-virtio-network-portgroup", NONE);
DO_TEST("net-virtio-rxtxqueuesize", NONE);
+ DO_TEST("net-virtio-teaming",
+ QEMU_CAPS_VIRTIO_NET_FAILOVER,
+ QEMU_CAPS_DEVICE_VFIO_PCI);
+ DO_TEST("net-virtio-teaming-network",
+ QEMU_CAPS_VIRTIO_NET_FAILOVER,
+ QEMU_CAPS_DEVICE_VFIO_PCI);
DO_TEST("net-hostdev", NONE);
DO_TEST("net-hostdev-bootorder", NONE);
DO_TEST("net-hostdev-vfio", QEMU_CAPS_DEVICE_VFIO_PCI);
--
2.24.1
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