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https://gitlab.com/libvirt/libvirt.git
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network: introduce networkAllocatePort
Separate network port allocation code from the domain driver network callback implementation. Reviewed-by: Laine Stump <laine@laine.org> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrangé
parent
f02e21cb33
commit
7475562d5b
@ -4359,60 +4359,38 @@ networkLogAllocation(virNetworkDefPtr netdef,
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* "backend" function table.
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*/
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/* networkAllocateActualDevice:
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* @dom: domain definition that @iface belongs to
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* @iface: the original NetDef from the domain
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/* networkAllocatePort:
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* @obj: the network to allocate from
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* @port: the port definition to allocate
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*
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* Looks up the network reference by iface, allocates a physical
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* Looks up the network reference by port, allocates a physical
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* device from that network (if appropriate), and returns with the
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* virDomainActualNetDef filled in accordingly. If there are no
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* changes to be made in the netdef, then just leave the actualdef
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* empty.
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* port configuration filled in accordingly.
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*
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* Returns 0 on success, -1 on failure.
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*/
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static int
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networkAllocateActualDevice(virNetworkPtr net,
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virDomainDefPtr dom,
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virDomainNetDefPtr iface)
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networkAllocatePort(virNetworkObjPtr obj,
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virNetworkPortDefPtr port)
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{
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virNetworkDriverStatePtr driver = networkGetDriver();
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virNetworkObjPtr obj = NULL;
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virNetworkDefPtr netdef = NULL;
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virPortGroupDefPtr portgroup = NULL;
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virNetworkForwardIfDefPtr dev = NULL;
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size_t i;
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int ret = -1;
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virNetDevVPortProfilePtr portprofile = NULL;
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virNetworkPortDefPtr port = NULL;
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VIR_DEBUG("Allocating port from net %s", net->name);
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obj = virNetworkObjFindByName(driver->networks, net->name);
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if (!obj) {
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virReportError(VIR_ERR_NO_NETWORK,
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_("no network with matching name '%s'"),
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net->name);
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goto error;
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}
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if (iface->type != VIR_DOMAIN_NET_TYPE_NETWORK) {
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virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
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_("Expected an interface for a virtual network"));
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goto error;
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}
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netdef = virNetworkObjGetDef(obj);
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VIR_DEBUG("Allocating port from net %s", netdef->name);
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if (!virNetworkObjIsActive(obj)) {
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virReportError(VIR_ERR_OPERATION_INVALID,
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_("network '%s' is not active"),
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netdef->name);
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goto error;
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goto cleanup;
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}
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if (!(port = virDomainNetDefToNetworkPort(dom, iface)))
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goto error;
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VIR_DEBUG("Interface port group %s", port->group);
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/* portgroup can be present for any type of network, in particular
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* for bandwidth information, so we need to check for that and
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@ -4424,7 +4402,7 @@ networkAllocateActualDevice(virNetworkPtr net,
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if (portgroup && portgroup->bandwidth &&
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virNetDevBandwidthCopy(&port->bandwidth,
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portgroup->bandwidth) < 0)
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goto error;
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goto cleanup;
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}
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if (port->vlan.nTags == 0) {
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@ -4435,7 +4413,7 @@ networkAllocateActualDevice(virNetworkPtr net,
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vlan = &netdef->vlan;
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if (vlan && virNetDevVlanCopy(&port->vlan, vlan) < 0)
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goto error;
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goto cleanup;
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}
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if (!port->trustGuestRxFilters) {
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@ -4453,7 +4431,7 @@ networkAllocateActualDevice(virNetworkPtr net,
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netdef->virtPortProfile,
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portgroup
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? portgroup->virtPortProfile : NULL) < 0) {
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goto error;
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goto cleanup;
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}
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if (portprofile) {
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VIR_FREE(port->virtPortProfile);
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@ -4473,7 +4451,7 @@ networkAllocateActualDevice(virNetworkPtr net,
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port->plugtype = VIR_NETWORK_PORT_PLUG_TYPE_NETWORK;
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if (VIR_STRDUP(port->plug.bridge.brname, netdef->bridge) < 0)
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goto error;
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goto cleanup;
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port->plug.bridge.macTableManager = netdef->macTableManager;
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if (port->virtPortProfile) {
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@ -4482,18 +4460,18 @@ networkAllocateActualDevice(virNetworkPtr net,
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"'%s' which uses IP forwarding"),
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virNetDevVPortTypeToString(port->virtPortProfile->virtPortType),
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netdef->name);
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goto error;
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goto cleanup;
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}
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if (networkPlugBandwidth(obj, &port->mac, port->bandwidth, &port->class_id) < 0)
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goto error;
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goto cleanup;
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break;
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case VIR_NETWORK_FORWARD_HOSTDEV: {
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port->plugtype = VIR_NETWORK_PORT_PLUG_TYPE_HOSTDEV_PCI;
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if (networkCreateInterfacePool(netdef) < 0)
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goto error;
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goto cleanup;
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/* pick first dev with 0 connections */
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for (i = 0; i < netdef->forward.nifs; i++) {
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@ -4507,7 +4485,7 @@ networkAllocateActualDevice(virNetworkPtr net,
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_("network '%s' requires exclusive access "
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"to interfaces, but none are available"),
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netdef->name);
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goto error;
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goto cleanup;
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}
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port->plug.hostdevpci.addr = dev->device.pci;
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port->plug.hostdevpci.driver = netdef->forward.driverName;
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@ -4523,7 +4501,7 @@ networkAllocateActualDevice(virNetworkPtr net,
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"via PCI passthrough"),
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virNetDevVPortTypeToString(port->virtPortProfile->virtPortType),
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netdef->name);
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goto error;
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goto cleanup;
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}
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}
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break;
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@ -4537,7 +4515,7 @@ networkAllocateActualDevice(virNetworkPtr net,
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port->plugtype = VIR_NETWORK_PORT_PLUG_TYPE_BRIDGE;
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if (VIR_STRDUP(port->plug.bridge.brname, netdef->bridge) < 0)
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goto error;
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goto cleanup;
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port->plug.bridge.macTableManager = netdef->macTableManager;
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if (port->virtPortProfile) {
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@ -4548,12 +4526,12 @@ networkAllocateActualDevice(virNetworkPtr net,
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"'%s' which uses a bridge device"),
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virNetDevVPortTypeToString(port->virtPortProfile->virtPortType),
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netdef->name);
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goto error;
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goto cleanup;
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}
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}
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if (networkPlugBandwidth(obj, &port->mac, port->bandwidth, &port->class_id) < 0)
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goto error;
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goto cleanup;
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break;
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}
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@ -4587,7 +4565,7 @@ networkAllocateActualDevice(virNetworkPtr net,
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"'%s' which uses a macvtap device"),
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virNetDevVPortTypeToString(port->virtPortProfile->virtPortType),
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netdef->name);
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goto error;
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goto cleanup;
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}
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}
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@ -4599,12 +4577,12 @@ networkAllocateActualDevice(virNetworkPtr net,
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_("network '%s' uses a direct mode, but "
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"has no forward dev and no interface pool"),
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netdef->name);
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goto error;
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goto cleanup;
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} else {
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/* pick an interface from the pool */
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if (networkCreateInterfacePool(netdef) < 0)
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goto error;
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goto cleanup;
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/* PASSTHROUGH mode, and PRIVATE Mode + 802.1Qbh both
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* require exclusive access to a device, so current
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@ -4639,26 +4617,26 @@ networkAllocateActualDevice(virNetworkPtr net,
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_("network '%s' requires exclusive access "
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"to interfaces, but none are available"),
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netdef->name);
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goto error;
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goto cleanup;
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}
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if (VIR_STRDUP(port->plug.direct.linkdev,
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dev->device.dev) < 0)
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goto error;
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goto cleanup;
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}
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break;
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case VIR_NETWORK_FORWARD_LAST:
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default:
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virReportEnumRangeError(virNetworkForwardType, netdef->forward.type);
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goto error;
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goto cleanup;
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}
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if (virNetworkObjMacMgrAdd(obj, driver->dnsmasqStateDir,
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dom->name, &port->mac) < 0)
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goto error;
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port->ownername, &port->mac) < 0)
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goto cleanup;
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if (virNetDevVPortProfileCheckComplete(port->virtPortProfile, true) < 0)
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goto error;
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goto cleanup;
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/* make sure that everything now specified for the device is
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* actually supported on this type of network. NB: network,
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@ -4683,7 +4661,7 @@ networkAllocateActualDevice(virNetworkPtr net,
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"is requesting a vlan tag, but that is not "
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"supported for this type of network"),
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netdef->name);
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goto error;
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goto cleanup;
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}
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}
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@ -4694,7 +4672,7 @@ networkAllocateActualDevice(virNetworkPtr net,
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virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
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_("bandwidth settings are not supported "
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"for hostdev interfaces"));
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goto error;
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goto cleanup;
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}
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netdef->connections++;
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@ -4708,28 +4686,61 @@ networkAllocateActualDevice(virNetworkPtr net,
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netdef->connections--;
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if (dev)
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dev->connections--;
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goto error;
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goto cleanup;
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}
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networkLogAllocation(netdef, dev, &iface->mac, true);
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networkLogAllocation(netdef, dev, &port->mac, true);
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VIR_DEBUG("Port allocated");
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ret = 0;
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cleanup:
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return ret;
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}
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static int
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networkAllocateActualDevice(virNetworkPtr net,
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virDomainDefPtr dom,
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virDomainNetDefPtr iface)
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{
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virNetworkDriverStatePtr driver = networkGetDriver();
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virNetworkPortDefPtr port = NULL;
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virNetworkObjPtr obj;
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int ret = -1;
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obj = virNetworkObjFindByName(driver->networks, net->name);
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if (!obj) {
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virReportError(VIR_ERR_NO_NETWORK,
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_("no network with matching name '%s'"),
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net->name);
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return -1;
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}
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if (iface->type != VIR_DOMAIN_NET_TYPE_NETWORK) {
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virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
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_("Expected an interface for a virtual network"));
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goto cleanup;
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}
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if (!(port = virDomainNetDefToNetworkPort(dom, iface)))
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goto cleanup;
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if (networkAllocatePort(obj, port) < 0)
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goto cleanup;
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VIR_DEBUG("Populating net def");
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if (virDomainNetDefActualFromNetworkPort(iface, port) < 0)
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goto error;
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goto cleanup;
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VIR_DEBUG("Port allocated");
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ret = 0;
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cleanup:
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virNetworkPortDefFree(port);
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virNetworkObjEndAPI(&obj);
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return ret;
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error:
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if (iface->type == VIR_DOMAIN_NET_TYPE_NETWORK) {
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if (ret < 0) {
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virDomainActualNetDefFree(iface->data.network.actual);
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iface->data.network.actual = NULL;
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}
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goto cleanup;
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virNetworkPortDefFree(port);
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virNetworkObjEndAPI(&obj);
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return ret;
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}
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