[libvirt] [PATCH v4] network: Add bandwidth support to ethernet interfaces
Anirban Chakraborty
abchak at juniper.net
Tue Oct 21 16:59:40 UTC 2014
On 10/10/14, 3:23 PM, "Anirban Chakraborty" <abchak at juniper.net> wrote:
>v4:
>Changed function virNetDevSupportBandwidth to use switch statement.
>Fixed syntax issues
>Fold the two patches into one as the second patch was a one liner
>
>v3:
>Addressed issues pointed out in V2
>Split into two patches
>
>v2:
>Addressed comments raised in review of V1.
>Consolidate calls to virNetDevBandwidthSet.
>Clear bandwidth settings when the interface is detached or domain
>destroyed.
>
>v1:
>Ethernet interfaces in libvirt currently do not support bandwidth setting.
>For example, following xml file for an interface will not apply these
>settings to corresponding qdiscs.
>
> <interface type="ethernet">
> <mac address="02:36:1d:18:2a:e4"/>
> <model type="virtio"/>
> <script path=""/>
> <target dev="tap361d182a-e4"/>
> <bandwidth>
> <inbound average="984" peak="1024" burst="64"/>
> <outbound average="2000" peak="2048" burst="128"/>
> </bandwidth>
> </interface>
>
>Signed-off-by: Anirban Chakraborty <abchak at juniper.net>
Ping.
>---
> src/conf/domain_conf.h | 21 +++++++++++++++++++++
> src/lxc/lxc_driver.c | 3 +++
> src/lxc/lxc_process.c | 18 +++++++++---------
> src/qemu/qemu_command.c | 25 +++++++++++++++++++------
> src/qemu/qemu_command.h | 2 ++
> src/qemu/qemu_driver.c | 3 +++
> src/qemu/qemu_hotplug.c | 12 ++++++++++++
> src/qemu/qemu_process.c | 3 +++
> src/util/virnetdevmacvlan.c | 10 ----------
> src/util/virnetdevmacvlan.h | 1 -
> 10 files changed, 72 insertions(+), 26 deletions(-)
>
>diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
>index afa3da6..59fdfb2 100644
>--- a/src/conf/domain_conf.h
>+++ b/src/conf/domain_conf.h
>@@ -2848,4 +2848,25 @@ int virDomainObjSetMetadata(virDomainObjPtr vm,
> bool virDomainDefNeedsPlacementAdvice(virDomainDefPtr def)
> ATTRIBUTE_NONNULL(1);
>
>+static inline bool virNetDevSupportBandwidth(virDomainNetType type)
>+{
>+ switch (type) {
>+ case VIR_DOMAIN_NET_TYPE_BRIDGE:
>+ case VIR_DOMAIN_NET_TYPE_NETWORK:
>+ case VIR_DOMAIN_NET_TYPE_DIRECT:
>+ case VIR_DOMAIN_NET_TYPE_ETHERNET:
>+ return true;
>+ case VIR_DOMAIN_NET_TYPE_USER:
>+ case VIR_DOMAIN_NET_TYPE_VHOSTUSER:
>+ case VIR_DOMAIN_NET_TYPE_SERVER:
>+ case VIR_DOMAIN_NET_TYPE_CLIENT:
>+ case VIR_DOMAIN_NET_TYPE_MCAST:
>+ case VIR_DOMAIN_NET_TYPE_INTERNAL:
>+ case VIR_DOMAIN_NET_TYPE_HOSTDEV:
>+ case VIR_DOMAIN_NET_TYPE_LAST:
>+ break;
>+ }
>+ return false;
>+}
>+
> #endif /* __DOMAIN_CONF_H */
>diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c
>index b3e506f..a6f1f8a 100644
>--- a/src/lxc/lxc_driver.c
>+++ b/src/lxc/lxc_driver.c
>@@ -72,6 +72,7 @@
> #include "viraccessapicheck.h"
> #include "viraccessapichecklxc.h"
> #include "virhostdev.h"
>+#include "qemu/qemu_command.h"
>
> #define VIR_FROM_THIS VIR_FROM_LXC
>
>@@ -4634,6 +4635,8 @@ lxcDomainDetachDeviceNetLive(virDomainObjPtr vm,
>
> detach = vm->def->nets[detachidx];
>
>+ qemuDomainClearNetBandwidth(vm);
>+
> switch (virDomainNetGetActualType(detach)) {
> case VIR_DOMAIN_NET_TYPE_BRIDGE:
> case VIR_DOMAIN_NET_TYPE_NETWORK:
>diff --git a/src/lxc/lxc_process.c b/src/lxc/lxc_process.c
>index ed30c37..3192011 100644
>--- a/src/lxc/lxc_process.c
>+++ b/src/lxc/lxc_process.c
>@@ -274,11 +274,6 @@ char
>*virLXCProcessSetupInterfaceBridged(virConnectPtr conn,
> if (virNetDevSetOnline(parentVeth, true) < 0)
> goto cleanup;
>
>- if (virNetDevBandwidthSet(net->ifname,
>- virDomainNetGetActualBandwidth(net),
>- false) < 0)
>- goto cleanup;
>-
> if (net->filter &&
> virDomainConfNWFilterInstantiate(conn, vm->uuid, net) < 0)
> goto cleanup;
>@@ -300,6 +295,7 @@ char *virLXCProcessSetupInterfaceDirect(virConnectPtr
>conn,
> virNetDevBandwidthPtr bw;
> virNetDevVPortProfilePtr prof;
> virLXCDriverConfigPtr cfg = virLXCDriverGetConfig(driver);
>+ const char *linkdev = virDomainNetGetActualDirectDev(net);
>
> /* XXX how todo bandwidth controls ?
> * Since the 'net-ifname' is about to be moved to a different
>@@ -329,14 +325,13 @@ char
>*virLXCProcessSetupInterfaceDirect(virConnectPtr conn,
>
> if (virNetDevMacVLanCreateWithVPortProfile(
> net->ifname, &net->mac,
>- virDomainNetGetActualDirectDev(net),
>+ linkdev,
> virDomainNetGetActualDirectMode(net),
> false, def->uuid,
>- virDomainNetGetActualVirtPortProfile(net),
>+ prof,
> &res_ifname,
> VIR_NETDEV_VPORT_PROFILE_OP_CREATE,
>- cfg->stateDir,
>- virDomainNetGetActualBandwidth(net), 0) < 0)
>+ cfg->stateDir, 0) < 0)
> goto cleanup;
>
> ret = res_ifname;
>@@ -450,6 +445,11 @@ static int
>virLXCProcessSetupInterfaces(virConnectPtr conn,
> goto cleanup;
> }
>
>+ /* set network bandwidth */
>+ if (virNetDevBandwidthSet(def->nets[i]->ifname,
>+ virDomainNetGetActualBandwidth(def->nets[i]), false) < 0)
>+ goto cleanup;
>+
> (*veths)[(*nveths)-1] = veth;
>
> /* Make sure all net definitions will have a name in the
>container */
>diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
>index 8cb0865..3645ace 100644
>--- a/src/qemu/qemu_command.c
>+++ b/src/qemu/qemu_command.c
>@@ -191,7 +191,6 @@ qemuPhysIfaceConnect(virDomainDefPtr def,
> virDomainNetGetActualVirtPortProfile(net),
> &res_ifname,
> vmop, cfg->stateDir,
>- virDomainNetGetActualBandwidth(net),
> macvlan_create_flags);
> if (rc >= 0) {
> virDomainAuditNetDevice(def, net, res_ifname, true);
>@@ -371,11 +370,6 @@ qemuNetworkIfaceConnect(virDomainDefPtr def,
> &net->mac) < 0)
> goto cleanup;
>
>- if (virNetDevBandwidthSet(net->ifname,
>- virDomainNetGetActualBandwidth(net),
>- false) < 0)
>- goto cleanup;
>-
> if (net->filter &&
> virDomainConfNWFilterInstantiate(conn, def->uuid, net) < 0) {
> goto cleanup;
>@@ -7427,6 +7421,13 @@ qemuBuildInterfaceCommandLine(virCommandPtr cmd,
> goto cleanup;
> }
>
>+ /* Set Bandwidth */
>+ if (virNetDevSupportBandwidth(actualType) &&
>+ virNetDevBandwidthSet(net->ifname,
>+ virDomainNetGetActualBandwidth(net),
>+ false) < 0)
>+ goto cleanup;
>+
> if ((actualType == VIR_DOMAIN_NET_TYPE_NETWORK ||
> actualType == VIR_DOMAIN_NET_TYPE_BRIDGE ||
> actualType == VIR_DOMAIN_NET_TYPE_ETHERNET ||
>@@ -12452,3 +12453,15 @@ virDomainDefPtr
>qemuParseCommandLinePid(virCapsPtr qemuCaps,
> virStringFreeList(progenv);
> return def;
> }
>+
>+void qemuDomainClearNetBandwidth(virDomainObjPtr vm)
>+{
>+ size_t i;
>+ virDomainNetType type;
>+
>+ for (i = 0; i < vm->def->nnets; i++) {
>+ type = virDomainNetGetActualType(vm->def->nets[i]);
>+ if (virNetDevSupportBandwidth(type))
>+ virNetDevBandwidthClear(vm->def->nets[i]->ifname);
>+ }
>+}
>diff --git a/src/qemu/qemu_command.h b/src/qemu/qemu_command.h
>index aa40c9e..7963a91 100644
>--- a/src/qemu/qemu_command.h
>+++ b/src/qemu/qemu_command.h
>@@ -277,4 +277,6 @@ int qemuCheckDiskConfig(virDomainDiskDefPtr disk);
>
> bool
> qemuCheckFips(void);
>+
>+void qemuDomainClearNetBandwidth(virDomainObjPtr vm);
> #endif /* __QEMU_COMMAND_H__*/
>diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
>index 7c9b1ab..8ad644a 100644
>--- a/src/qemu/qemu_driver.c
>+++ b/src/qemu/qemu_driver.c
>@@ -2196,6 +2196,9 @@ qemuDomainDestroyFlags(virDomainPtr dom,
> if (virDomainDestroyFlagsEnsureACL(dom->conn, vm->def) < 0)
> goto cleanup;
>
>+ /* Clear network bandwidth */
>+ qemuDomainClearNetBandwidth(vm);
>+
> qemuDomainSetFakeReboot(driver, vm, false);
>
>
>diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
>index 1e504ec..f627e69 100644
>--- a/src/qemu/qemu_hotplug.c
>+++ b/src/qemu/qemu_hotplug.c
>@@ -50,6 +50,7 @@
> #include "virstring.h"
> #include "virtime.h"
> #include "storage/storage_driver.h"
>+#include "domain_conf.h"
>
> #define VIR_FROM_THIS VIR_FROM_QEMU
>
>@@ -948,6 +949,12 @@ int qemuDomainAttachNetDevice(virConnectPtr conn,
> goto cleanup;
> }
>
>+ /* Set Bandwidth */
>+ if (virNetDevSupportBandwidth(actualType) &&
>+ virNetDevBandwidthSet(net->ifname,
>+ virDomainNetGetActualBandwidth(net), false) < 0)
>+ goto cleanup;
>+
> for (i = 0; i < tapfdSize; i++) {
> if (virSecurityManagerSetTapFDLabel(driver->securityManager,
> vm->def, tapfd[i]) < 0)
>@@ -3516,6 +3523,11 @@ qemuDomainDetachNetDevice(virQEMUDriverPtr driver,
> }
> }
>
>+ if (virNetDevSupportBandwidth(virDomainNetGetActualType(detach)) &&
>+ virNetDevBandwidthClear(detach->ifname) < 0)
>+ VIR_WARN("cannot clear bandwidth setting for device : %s",
>+ detach->ifname);
>+
> qemuDomainMarkDeviceForRemoval(vm, &detach->info);
>
> qemuDomainObjEnterMonitor(driver, vm);
>diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
>index 95548aa..4d95ec4 100644
>--- a/src/qemu/qemu_process.c
>+++ b/src/qemu/qemu_process.c
>@@ -4825,6 +4825,9 @@ void qemuProcessStop(virQEMUDriverPtr driver,
> virStrerror(errno, ebuf, sizeof(ebuf)));
> }
>
>+ /* Clear network bandwidth */
>+ qemuDomainClearNetBandwidth(vm);
>+
> virDomainConfVMNWFilterTeardown(vm);
>
> if (cfg->macFilter) {
>diff --git a/src/util/virnetdevmacvlan.c b/src/util/virnetdevmacvlan.c
>index c83341c..956a96b 100644
>--- a/src/util/virnetdevmacvlan.c
>+++ b/src/util/virnetdevmacvlan.c
>@@ -811,7 +811,6 @@ int virNetDevMacVLanCreateWithVPortProfile(const char
>*tgifname,
> char **res_ifname,
> virNetDevVPortProfileOp vmOp,
> char *stateDir,
>- virNetDevBandwidthPtr
>bandwidth,
> unsigned int flags)
> {
> const char *type = (flags & VIR_NETDEV_MACVLAN_CREATE_WITH_TAP) ?
>@@ -925,14 +924,6 @@ int virNetDevMacVLanCreateWithVPortProfile(const
>char *tgifname,
> rc = 0;
> }
>
>- if (virNetDevBandwidthSet(cr_ifname, bandwidth, false) < 0) {
>- if (flags & VIR_NETDEV_MACVLAN_CREATE_WITH_TAP)
>- VIR_FORCE_CLOSE(rc); /* sets rc to -1 */
>- else
>- rc = -1;
>- goto disassociate_exit;
>- }
>-
> if (vmOp == VIR_NETDEV_VPORT_PROFILE_OP_CREATE ||
> vmOp == VIR_NETDEV_VPORT_PROFILE_OP_RESTORE) {
> /* Only directly register upon a create or restore (restarting
>@@ -1076,7 +1067,6 @@ int virNetDevMacVLanCreateWithVPortProfile(const
>char *ifname ATTRIBUTE_UNUSED,
> char **res_ifname
>ATTRIBUTE_UNUSED,
> virNetDevVPortProfileOp vmop
>ATTRIBUTE_UNUSED,
> char *stateDir
>ATTRIBUTE_UNUSED,
>- virNetDevBandwidthPtr
>bandwidth ATTRIBUTE_UNUSED,
> unsigned int flags)
> {
> virCheckFlags(0, -1);
>diff --git a/src/util/virnetdevmacvlan.h b/src/util/virnetdevmacvlan.h
>index 41aa4e2..f08d32b 100644
>--- a/src/util/virnetdevmacvlan.h
>+++ b/src/util/virnetdevmacvlan.h
>@@ -68,7 +68,6 @@ int virNetDevMacVLanCreateWithVPortProfile(const char
>*ifname,
> char **res_ifname,
> virNetDevVPortProfileOp vmop,
> char *stateDir,
>- virNetDevBandwidthPtr
>bandwidth,
> unsigned int flags)
> ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3) ATTRIBUTE_NONNULL(6)
> ATTRIBUTE_NONNULL(8) ATTRIBUTE_NONNULL(10) ATTRIBUTE_RETURN_CHECK;
>--
>1.9.1
>
>--
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