[libvirt] [PATCH v6 01/23] conf: allow bandwidth parsing / formatting to include class ID
Daniel P. Berrangé
berrange at redhat.com
Thu May 23 15:32:40 UTC 2019
The domain conf actual network def stores a <class id='3'/> element
separately from the <bandwidth>. The class ID should really just be
an attribute on the <bandwidth> element. We can't change existing
XML, and this isn't visible to users since it is internal XML only.
When we expose the new network port XML to users though, we should
get the design right.
Signed-off-by: Daniel P. Berrangé <berrange at redhat.com>
---
src/conf/domain_conf.c | 6 ++++--
src/conf/netdev_bandwidth_conf.c | 30 ++++++++++++++++++++++++++++--
src/conf/netdev_bandwidth_conf.h | 2 ++
src/conf/network_conf.c | 8 ++++----
tests/virnetdevbandwidthtest.c | 1 +
5 files changed, 39 insertions(+), 8 deletions(-)
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 926c2139b7..440a75ec1d 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -11278,6 +11278,7 @@ virDomainActualNetDefParseXML(xmlNodePtr node,
bandwidth_node = virXPathNode("./bandwidth", ctxt);
if (bandwidth_node &&
virNetDevBandwidthParse(&actual->bandwidth,
+ NULL,
bandwidth_node,
actual->type == VIR_DOMAIN_NET_TYPE_NETWORK) < 0)
goto error;
@@ -11617,6 +11618,7 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt,
}
} else if (virXMLNodeNameEqual(cur, "bandwidth")) {
if (virNetDevBandwidthParse(&def->bandwidth,
+ NULL,
cur,
def->type == VIR_DOMAIN_NET_TYPE_NETWORK) < 0)
goto error;
@@ -25014,7 +25016,7 @@ virDomainActualNetDefContentsFormat(virBufferPtr buf,
return -1;
if (virNetDevVPortProfileFormat(virDomainNetGetActualVirtPortProfile(def), buf) < 0)
return -1;
- if (virNetDevBandwidthFormat(virDomainNetGetActualBandwidth(def), buf) < 0)
+ if (virNetDevBandwidthFormat(virDomainNetGetActualBandwidth(def), 0, buf) < 0)
return -1;
return 0;
}
@@ -25391,7 +25393,7 @@ virDomainNetDefFormat(virBufferPtr buf,
return -1;
if (virNetDevVPortProfileFormat(def->virtPortProfile, buf) < 0)
return -1;
- if (virNetDevBandwidthFormat(def->bandwidth, buf) < 0)
+ if (virNetDevBandwidthFormat(def->bandwidth, 0, buf) < 0)
return -1;
/* ONLY for internal status storage - format the ActualNetDef
diff --git a/src/conf/netdev_bandwidth_conf.c b/src/conf/netdev_bandwidth_conf.c
index 014941836d..9af2173b7b 100644
--- a/src/conf/netdev_bandwidth_conf.c
+++ b/src/conf/netdev_bandwidth_conf.c
@@ -99,6 +99,7 @@ virNetDevBandwidthParseRate(xmlNodePtr node, virNetDevBandwidthRatePtr rate)
/**
* virNetDevBandwidthParse:
* @bandwidth: parsed bandwidth
+ * @class_id: parsed class ID
* @node: XML node
* @allowFloor: whether "floor" setting is supported
*
@@ -110,6 +111,7 @@ virNetDevBandwidthParseRate(xmlNodePtr node, virNetDevBandwidthRatePtr rate)
*/
int
virNetDevBandwidthParse(virNetDevBandwidthPtr *bandwidth,
+ unsigned int *class_id,
xmlNodePtr node,
bool allowFloor)
{
@@ -117,6 +119,7 @@ virNetDevBandwidthParse(virNetDevBandwidthPtr *bandwidth,
virNetDevBandwidthPtr def = NULL;
xmlNodePtr cur;
xmlNodePtr in = NULL, out = NULL;
+ char *class_id_prop = NULL;
if (VIR_ALLOC(def) < 0)
return ret;
@@ -127,6 +130,22 @@ virNetDevBandwidthParse(virNetDevBandwidthPtr *bandwidth,
goto cleanup;
}
+ class_id_prop = virXMLPropString(node, "classID");
+ if (class_id_prop) {
+ if (!class_id) {
+ virReportError(VIR_ERR_XML_DETAIL, "%s",
+ _("classID attribute not supported on <bandwidth> "
+ "in this usage context"));
+ goto cleanup;
+ }
+ if (virStrToLong_ui(class_id_prop, NULL, 10, class_id) < 0) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Unable to parse class id '%s'"),
+ class_id_prop);
+ goto cleanup;
+ }
+ }
+
cur = node->children;
while (cur) {
@@ -194,6 +213,7 @@ virNetDevBandwidthParse(virNetDevBandwidthPtr *bandwidth,
ret = 0;
cleanup:
+ VIR_FREE(class_id_prop);
virNetDevBandwidthFree(def);
return ret;
}
@@ -231,6 +251,7 @@ virNetDevBandwidthRateFormat(virNetDevBandwidthRatePtr def,
/**
* virNetDevBandwidthFormat:
* @def: Data source
+ * @class_id: the class ID to format, 0 to skip
* @buf: Buffer to print to
*
* Formats bandwidth and prepend each line with @indent.
@@ -239,7 +260,9 @@ virNetDevBandwidthRateFormat(virNetDevBandwidthRatePtr def,
* Returns 0 on success, else -1.
*/
int
-virNetDevBandwidthFormat(virNetDevBandwidthPtr def, virBufferPtr buf)
+virNetDevBandwidthFormat(virNetDevBandwidthPtr def,
+ unsigned int class_id,
+ virBufferPtr buf)
{
int ret = -1;
@@ -251,7 +274,10 @@ virNetDevBandwidthFormat(virNetDevBandwidthPtr def, virBufferPtr buf)
goto cleanup;
}
- virBufferAddLit(buf, "<bandwidth>\n");
+ virBufferAddLit(buf, "<bandwidth");
+ if (class_id)
+ virBufferAsprintf(buf, " classID='%u'", class_id);
+ virBufferAddLit(buf, ">\n");
virBufferAdjustIndent(buf, 2);
if (virNetDevBandwidthRateFormat(def->in, buf, "inbound") < 0 ||
virNetDevBandwidthRateFormat(def->out, buf, "outbound") < 0)
diff --git a/src/conf/netdev_bandwidth_conf.h b/src/conf/netdev_bandwidth_conf.h
index 7fe750ce27..b91222321a 100644
--- a/src/conf/netdev_bandwidth_conf.h
+++ b/src/conf/netdev_bandwidth_conf.h
@@ -26,10 +26,12 @@
# include "domain_conf.h"
int virNetDevBandwidthParse(virNetDevBandwidthPtr *bandwidth,
+ unsigned int *class_id,
xmlNodePtr node,
bool allowFloor)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
int virNetDevBandwidthFormat(virNetDevBandwidthPtr def,
+ unsigned int class_id,
virBufferPtr buf);
void virDomainClearNetBandwidth(virDomainObjPtr vm)
diff --git a/src/conf/network_conf.c b/src/conf/network_conf.c
index 91562de269..09e379ae9a 100644
--- a/src/conf/network_conf.c
+++ b/src/conf/network_conf.c
@@ -1188,7 +1188,7 @@ virNetworkPortGroupParseXML(virPortGroupDefPtr def,
bandwidth_node = virXPathNode("./bandwidth", ctxt);
if (bandwidth_node &&
- virNetDevBandwidthParse(&def->bandwidth, bandwidth_node, false) < 0)
+ virNetDevBandwidthParse(&def->bandwidth, NULL, bandwidth_node, false) < 0)
goto cleanup;
vlanNode = virXPathNode("./vlan", ctxt);
@@ -1682,7 +1682,7 @@ virNetworkDefParseXML(xmlXPathContextPtr ctxt)
}
if ((bandwidthNode = virXPathNode("./bandwidth", ctxt)) &&
- virNetDevBandwidthParse(&def->bandwidth, bandwidthNode, false) < 0)
+ virNetDevBandwidthParse(&def->bandwidth, NULL, bandwidthNode, false) < 0)
goto error;
vlanNode = virXPathNode("./vlan", ctxt);
@@ -2311,7 +2311,7 @@ virPortGroupDefFormat(virBufferPtr buf,
return -1;
if (virNetDevVPortProfileFormat(def->virtPortProfile, buf) < 0)
return -1;
- virNetDevBandwidthFormat(def->bandwidth, buf);
+ virNetDevBandwidthFormat(def->bandwidth, 0, buf);
virBufferAdjustIndent(buf, -2);
virBufferAddLit(buf, "</portgroup>\n");
return 0;
@@ -2566,7 +2566,7 @@ virNetworkDefFormatBuf(virBufferPtr buf,
if (virNetDevVlanFormat(&def->vlan, buf) < 0)
goto error;
- if (virNetDevBandwidthFormat(def->bandwidth, buf) < 0)
+ if (virNetDevBandwidthFormat(def->bandwidth, 0, buf) < 0)
goto error;
for (i = 0; i < def->nips; i++) {
diff --git a/tests/virnetdevbandwidthtest.c b/tests/virnetdevbandwidthtest.c
index 23788b4164..2c0b6a6713 100644
--- a/tests/virnetdevbandwidthtest.c
+++ b/tests/virnetdevbandwidthtest.c
@@ -54,6 +54,7 @@ struct testSetStruct {
goto cleanup; \
\
rc = virNetDevBandwidthParse(&(var), \
+ NULL, \
ctxt->node, \
true); \
xmlFreeDoc(doc); \
--
2.21.0
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