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qemu: use virDomainNetGetActual*() functions where appropriate

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The qemu driver accesses fields in the virDomainNetDef directly, but
with the advent of the virDomainActualNetDef, some pieces of
information may be found in a different place (the ActualNetDef) if
the network connection is of type='network' and that network is of
forward type='bridge|private|vepa|passthrough'. The previous patch
added functions to mask this difference from callers - they hide the
decision making process and just pick the value from the proper place.

This patch uses those functions in the qemu driver as a first step in
making qemu work with the new network types. At this point, the
virDomainActualNetDef is guaranteed always NULL, so the GetActualX()
function will return exactly what the def->X that's being replaced
would have returned (ie bisecting is not compromised).

There is one place (in qemu_driver.c) where the internal details of
the NetDef are directly manipulated by the code, so the GetActual
functions cannot be used there without extra additional code; that
file will be treated in a separate patch.
This commit is contained in:
Laine Stump 2011-07-03 21:57:45 -04:00
parent b48e81bf94
commit 03caa988a6
4 changed files with 47 additions and 35 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
src/qemu/qemu_command.c
View File

@ -125,9 +125,12 @@ qemuPhysIfaceConnect(virDomainDefPtr def,
net->model && STREQ(net->model, "virtio"))
vnet_hdr = 1;
rc = openMacvtapTap(net->ifname, net->mac, net->data.direct.linkdev,
net->data.direct.mode, vnet_hdr, def->uuid,
net->data.direct.virtPortProfile, &res_ifname,
rc = openMacvtapTap(net->ifname, net->mac,
virDomainNetGetActualDirectDev(net),
virDomainNetGetActualDirectMode(net),
vnet_hdr, def->uuid,
virDomainNetGetActualDirectVirtPortProfile(net),
&res_ifname,
vmop, driver->stateDir);
if (rc >= 0) {
virDomainAuditNetDevice(def, net, res_ifname, true);
@ -148,9 +151,10 @@ qemuPhysIfaceConnect(virDomainDefPtr def,
err = virDomainConfNWFilterInstantiate(conn, net);
if (err) {
VIR_FORCE_CLOSE(rc);
delMacvtap(net->ifname, net->mac, net->data.direct.linkdev,
net->data.direct.mode,
net->data.direct.virtPortProfile,
delMacvtap(net->ifname, net->mac,
virDomainNetGetActualDirectDev(net),
virDomainNetGetActualDirectMode(net),
virDomainNetGetActualDirectVirtPortProfile(net),
driver->stateDir);
VIR_FREE(net->ifname);
}
@ -184,8 +188,9 @@ qemuNetworkIfaceConnect(virDomainDefPtr def,
int vnet_hdr = 0;
int template_ifname = 0;
unsigned char tapmac[VIR_MAC_BUFLEN];
int actualType = virDomainNetGetActualType(net);
if (net->type == VIR_DOMAIN_NET_TYPE_NETWORK) {
if (actualType == VIR_DOMAIN_NET_TYPE_NETWORK) {
int active, fail = 0;
virErrorPtr errobj;
virNetworkPtr network = virNetworkLookupByName(conn,
@ -218,14 +223,15 @@ qemuNetworkIfaceConnect(virDomainDefPtr def,
if (fail)
return -1;
} else if (net->type == VIR_DOMAIN_NET_TYPE_BRIDGE) {
if (!(brname = strdup(net->data.bridge.brname))) {
} else if (actualType == VIR_DOMAIN_NET_TYPE_BRIDGE) {
if (!(brname = strdup(virDomainNetGetActualBridgeName(net)))) {
virReportOOMError();
return -1;
}
} else {
qemuReportError(VIR_ERR_INTERNAL_ERROR,
_("Network type %d is not supported"), net->type);
_("Network type %d is not supported"),
virDomainNetGetActualType(net));
return -1;
}
@ -1829,7 +1835,7 @@ qemuBuildHostNetStr(virDomainNetDefPtr net,
bool is_tap = false;
virBuffer buf = VIR_BUFFER_INITIALIZER;
switch (net->type) {
switch (virDomainNetGetActualType(net)) {
case VIR_DOMAIN_NET_TYPE_NETWORK:
case VIR_DOMAIN_NET_TYPE_BRIDGE:
case VIR_DOMAIN_NET_TYPE_DIRECT:
@ -1857,7 +1863,7 @@ qemuBuildHostNetStr(virDomainNetDefPtr net,
case VIR_DOMAIN_NET_TYPE_SERVER:
case VIR_DOMAIN_NET_TYPE_MCAST:
virBufferAddLit(&buf, "socket");
switch (net->type) {
switch (virDomainNetGetActualType(net)) {
case VIR_DOMAIN_NET_TYPE_CLIENT:
virBufferAsprintf(&buf, "%cconnect=%s:%d",
type_sep,
@ -3678,6 +3684,7 @@ qemuBuildCommandLine(virConnectPtr conn,
char vhostfd_name[50] = "";
int vlan;
int bootindex = bootNet;
int actualType;
bootNet = 0;
if (!bootindex)
@ -3690,8 +3697,9 @@ qemuBuildCommandLine(virConnectPtr conn,
else
vlan = i;
if (net->type == VIR_DOMAIN_NET_TYPE_NETWORK ||
net->type == VIR_DOMAIN_NET_TYPE_BRIDGE) {
actualType = virDomainNetGetActualType(net);
if (actualType == VIR_DOMAIN_NET_TYPE_NETWORK ||
actualType == VIR_DOMAIN_NET_TYPE_BRIDGE) {
int tapfd = qemuNetworkIfaceConnect(def, conn, driver, net,
qemuCaps);
if (tapfd < 0)
@ -3703,7 +3711,7 @@ qemuBuildCommandLine(virConnectPtr conn,
if (snprintf(tapfd_name, sizeof(tapfd_name), "%d",
tapfd) >= sizeof(tapfd_name))
goto no_memory;
} else if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) {
} else if (actualType == VIR_DOMAIN_NET_TYPE_DIRECT) {
int tapfd = qemuPhysIfaceConnect(def, conn, driver, net,
qemuCaps, vmop);
if (tapfd < 0)
@ -3717,9 +3725,9 @@ qemuBuildCommandLine(virConnectPtr conn,
goto no_memory;
}
if (net->type == VIR_DOMAIN_NET_TYPE_NETWORK ||
net->type == VIR_DOMAIN_NET_TYPE_BRIDGE ||
net->type == VIR_DOMAIN_NET_TYPE_DIRECT) {
if (actualType == VIR_DOMAIN_NET_TYPE_NETWORK ||
actualType == VIR_DOMAIN_NET_TYPE_BRIDGE ||
actualType == VIR_DOMAIN_NET_TYPE_DIRECT) {
/* Attempt to use vhost-net mode for these types of
network device */
int vhostfd;

16
src/qemu/qemu_hotplug.c
View File

@ -603,6 +603,7 @@ int qemuDomainAttachNetDevice(virConnectPtr conn,
virDomainDevicePCIAddress guestAddr;
int vlan;
bool releaseaddr = false;
int actualType = virDomainNetGetActualType(net);
if (!qemuCapsGet(priv->qemuCaps, QEMU_CAPS_HOST_NET_ADD)) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
@ -610,14 +611,14 @@ int qemuDomainAttachNetDevice(virConnectPtr conn,
return -1;
}
if (net->type == VIR_DOMAIN_NET_TYPE_BRIDGE ||
net->type == VIR_DOMAIN_NET_TYPE_NETWORK) {
if (actualType == VIR_DOMAIN_NET_TYPE_BRIDGE ||
actualType == VIR_DOMAIN_NET_TYPE_NETWORK) {
if ((tapfd = qemuNetworkIfaceConnect(vm->def, conn, driver, net,
priv->qemuCaps)) < 0)
return -1;
if (qemuOpenVhostNet(vm->def, net, priv->qemuCaps, &vhostfd) < 0)
goto cleanup;
} else if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) {
} else if (actualType == VIR_DOMAIN_NET_TYPE_DIRECT) {
if ((tapfd = qemuPhysIfaceConnect(vm->def, conn, driver, net,
priv->qemuCaps,
VIR_VM_OP_CREATE)) < 0)
@ -1613,10 +1614,11 @@ int qemuDomainDetachNetDevice(struct qemud_driver *driver,
virDomainConfNWFilterTeardown(detach);
#if WITH_MACVTAP
if (detach->type == VIR_DOMAIN_NET_TYPE_DIRECT) {
delMacvtap(detach->ifname, detach->mac, detach->data.direct.linkdev,
detach->data.direct.mode,
detach->data.direct.virtPortProfile,
if (virDomainNetGetActualType(detach) == VIR_DOMAIN_NET_TYPE_DIRECT) {
delMacvtap(detach->ifname, detach->mac,
virDomainNetGetActualDirectDev(detach),
virDomainNetGetActualDirectMode(detach),
virDomainNetGetActualDirectVirtPortProfile(detach),
driver->stateDir);
VIR_FREE(detach->ifname);
}

12
src/qemu/qemu_migration.c
View File

@ -2343,11 +2343,11 @@ qemuMigrationVPAssociatePortProfiles(virDomainDefPtr def) {
for (i = 0; i < def->nnets; i++) {
net = def->nets[i];
if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) {
if (virDomainNetGetActualType(net) == VIR_DOMAIN_NET_TYPE_DIRECT) {
if (vpAssociatePortProfileId(net->ifname,
net->mac,
net->data.direct.linkdev,
net->data.direct.virtPortProfile,
virDomainNetGetActualDirectDev(net),
virDomainNetGetActualDirectVirtPortProfile(net),
def->uuid,
VIR_VM_OP_MIGRATE_IN_FINISH) != 0)
goto err_exit;
@ -2360,11 +2360,11 @@ qemuMigrationVPAssociatePortProfiles(virDomainDefPtr def) {
err_exit:
for (i = 0; i < last_good_net; i++) {
net = def->nets[i];
if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) {
if (virDomainNetGetActualType(net) == VIR_DOMAIN_NET_TYPE_DIRECT) {
vpDisassociatePortProfileId(net->ifname,
net->mac,
net->data.direct.linkdev,
net->data.direct.virtPortProfile,
virDomainNetGetActualDirectDev(net),
virDomainNetGetActualDirectVirtPortProfile(net),
VIR_VM_OP_MIGRATE_IN_FINISH);
}
}

10
src/qemu/qemu_process.c
View File

@ -3018,10 +3018,12 @@ void qemuProcessStop(struct qemud_driver *driver,
def = vm->def;
for (i = 0; i < def->nnets; i++) {
virDomainNetDefPtr net = def->nets[i];
if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) {
delMacvtap(net->ifname, net->mac, net->data.direct.linkdev,
net->data.direct.mode,
net->data.direct.virtPortProfile, driver->stateDir);
if (virDomainNetGetActualType(net) == VIR_DOMAIN_NET_TYPE_DIRECT) {
delMacvtap(net->ifname, net->mac,
virDomainNetGetActualDirectDev(net),
virDomainNetGetActualDirectMode(net),
virDomainNetGetActualDirectVirtPortProfile(net),
driver->stateDir);
VIR_FREE(net->ifname);
}
}