[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH V2 2/3] xenconfig: support vif bandwidth in xm and xl parser and formatter
Both xm and xl config have long supported specifying vif rate limiting, e.g. vif = [ 'mac=00:16:3E:74:3d:76,bridge=br0,rate=10MB/s' ] Add support for mapping rate to and from <bandwidth> in the xenconfig parser and formatter. rate is mapped to the required 'average' attribute of the <outbound> element, e.g. <interface type='bridge'> ... <bandwidth> <outbound average='10240'/> </bandwidth> </interface> Also add a unit test to check the conversion logic. Signed-off-by: Jim Fehlig <jfehlig@xxxxxxxx> --- src/xenconfig/xen_common.c | 30 +++++++++++++++++++ tests/xlconfigdata/test-vif-rate.cfg | 26 ++++++++++++++++ tests/xlconfigdata/test-vif-rate.xml | 57 ++++++++++++++++++++++++++++++++++++ tests/xlconfigtest.c | 1 + 4 files changed, 114 insertions(+) diff --git a/src/xenconfig/xen_common.c b/src/xenconfig/xen_common.c index 54f5791..7cc8639 100644 --- a/src/xenconfig/xen_common.c +++ b/src/xenconfig/xen_common.c @@ -819,6 +819,7 @@ xenParseVif(virConfPtr conf, virDomainDefPtr def) char mac[18]; char bridge[50]; char vifname[50]; + char rate[50]; char *key; bridge[0] = '\0'; @@ -827,6 +828,7 @@ xenParseVif(virConfPtr conf, virDomainDefPtr def) model[0] = '\0'; type[0] = '\0'; vifname[0] = '\0'; + rate[0] = '\0'; if ((list->type != VIR_CONF_STRING) || (list->str == NULL)) goto skipnic; @@ -892,6 +894,13 @@ xenParseVif(virConfPtr conf, virDomainDefPtr def) _("IP %s too big for destination"), data); goto skipnic; } + } else if (STRPREFIX(key, "rate=")) { + int len = nextkey ? (nextkey - data) : sizeof(rate) - 1; + if (virStrncpy(rate, data, len, sizeof(rate)) == NULL) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("rate %s too big for destination"), data); + goto skipnic; + } } while (nextkey && (nextkey[0] == ',' || @@ -942,6 +951,24 @@ xenParseVif(virConfPtr conf, virDomainDefPtr def) VIR_STRDUP(net->ifname, vifname) < 0) goto cleanup; + if (rate[0]) { + virNetDevBandwidthPtr bandwidth; + unsigned long long kbytes_per_sec; + + if (xenParseSxprVifRate(rate, &kbytes_per_sec) < 0) + goto cleanup; + + if (VIR_ALLOC(bandwidth) < 0) + goto cleanup; + if (VIR_ALLOC(bandwidth->out) < 0) { + VIR_FREE(bandwidth); + goto cleanup; + } + + bandwidth->out->average = kbytes_per_sec; + net->bandwidth = bandwidth; + } + if (VIR_APPEND_ELEMENT(def->nets, def->nnets, net) < 0) goto cleanup; @@ -1184,6 +1211,9 @@ xenFormatNet(virConnectPtr conn, virBufferAsprintf(&buf, ",vifname=%s", net->ifname); + if (net->bandwidth && net->bandwidth->out && net->bandwidth->out->average) + virBufferAsprintf(&buf, ",rate=%lluKB/s", net->bandwidth->out->average); + if (virBufferCheckError(&buf) < 0) goto cleanup; diff --git a/tests/xlconfigdata/test-vif-rate.cfg b/tests/xlconfigdata/test-vif-rate.cfg new file mode 100644 index 0000000..c5484dc --- /dev/null +++ b/tests/xlconfigdata/test-vif-rate.cfg @@ -0,0 +1,26 @@ +name = "XenGuest2" +uuid = "c7a5fdb2-cdaf-9455-926a-d65c16db1809" +maxmem = 579 +memory = 394 +vcpus = 1 +pae = 1 +acpi = 1 +apic = 1 +hap = 0 +viridian = 0 +rtc_timeoffset = 0 +localtime = 0 +on_poweroff = "destroy" +on_reboot = "restart" +on_crash = "restart" +device_model = "/usr/lib/xen/bin/qemu-dm" +sdl = 0 +vnc = 1 +vncunused = 1 +vnclisten = "127.0.0.1" +vif = [ "mac=00:16:3e:66:92:9c,bridge=xenbr1,script=vif-bridge,model=e1000,rate=10240KB/s" ] +parallel = "none" +serial = "none" +builder = "hvm" +boot = "d" +disk = [ "/dev/HostVG/XenGuest2,raw,hda,w,backendtype=phy", "/var/lib/libvirt/images/XenGuest2-home,qcow2,hdb,w,backendtype=qdisk", "/root/boot.iso,raw,hdc,r,backendtype=qdisk,devtype=cdrom" ] diff --git a/tests/xlconfigdata/test-vif-rate.xml b/tests/xlconfigdata/test-vif-rate.xml new file mode 100644 index 0000000..29f0f79 --- /dev/null +++ b/tests/xlconfigdata/test-vif-rate.xml @@ -0,0 +1,57 @@ +<domain type='xen'> + <name>XenGuest2</name> + <uuid>c7a5fdb2-cdaf-9455-926a-d65c16db1809</uuid> + <memory unit='KiB'>592896</memory> + <currentMemory unit='KiB'>403456</currentMemory> + <vcpu placement='static'>1</vcpu> + <os> + <type arch='x86_64' machine='xenfv'>hvm</type> + <loader type='rom'>/usr/lib/xen/boot/hvmloader</loader> + <boot dev='cdrom'/> + </os> + <features> + <acpi/> + <apic/> + <pae/> + </features> + <clock offset='variable' adjustment='0' basis='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>restart</on_crash> + <devices> + <emulator>/usr/lib/xen/bin/qemu-dm</emulator> + <disk type='block' device='disk'> + <driver name='phy' type='raw'/> + <source dev='/dev/HostVG/XenGuest2'/> + <target dev='hda' bus='ide'/> + <address type='drive' controller='0' bus='0' target='0' unit='0'/> + </disk> + <disk type='file' device='disk'> + <driver name='qemu' type='qcow2'/> + <source file='/var/lib/libvirt/images/XenGuest2-home'/> + <target dev='hdb' bus='ide'/> + <address type='drive' controller='0' bus='0' target='0' unit='1'/> + </disk> + <disk type='file' device='cdrom'> + <driver name='qemu' type='raw'/> + <source file='/root/boot.iso'/> + <target dev='hdc' bus='ide'/> + <readonly/> + <address type='drive' controller='0' bus='1' target='0' unit='0'/> + </disk> + <interface type='bridge'> + <mac address='00:16:3e:66:92:9c'/> + <source bridge='xenbr1'/> + <bandwidth> + <outbound average='10240'/> + </bandwidth> + <script path='vif-bridge'/> + <model type='e1000'/> + </interface> + <input type='mouse' bus='ps2'/> + <input type='keyboard' bus='ps2'/> + <graphics type='vnc' port='-1' autoport='yes' listen='127.0.0.1'> + <listen type='address' address='127.0.0.1'/> + </graphics> + </devices> +</domain> diff --git a/tests/xlconfigtest.c b/tests/xlconfigtest.c index 1db11e7..e997009 100644 --- a/tests/xlconfigtest.c +++ b/tests/xlconfigtest.c @@ -196,6 +196,7 @@ mymain(void) DO_TEST("new-disk"); DO_TEST("spice"); DO_TEST("spice-features"); + DO_TEST("vif-rate"); #ifdef LIBXL_HAVE_BUILDINFO_USBDEVICE_LIST DO_TEST("fullvirt-multiusb"); -- 2.1.4 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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