vz: convert to net model enum

The vz driver only handles three models: virtio, e1000, and rtl8139.
Add enum values for those models, and convert the vz driver to
handling net->model natively
Acked-by: NMichal Privoznik <mprivozn@redhat.com>
Signed-off-by: NCole Robinson <crobinso@redhat.com>

src/conf/domain_conf.c

@@ -510,6 +510,9 @@ VIR_ENUM_IMPL(virDomainNetModel,
               VIR_DOMAIN_NET_MODEL_LAST,
               "unknown",
               "netfront",
+              "rtl8139",
+              "virtio",
+              "e1000",
 );
 
 VIR_ENUM_IMPL(virDomainNetBackend,

src/conf/domain_conf.h

@@ -843,6 +843,9 @@ typedef enum {
 typedef enum {
     VIR_DOMAIN_NET_MODEL_UNKNOWN,
     VIR_DOMAIN_NET_MODEL_NETFRONT,
+    VIR_DOMAIN_NET_MODEL_RTL8139,
+    VIR_DOMAIN_NET_MODEL_VIRTIO,
+    VIR_DOMAIN_NET_MODEL_E1000,
 
     VIR_DOMAIN_NET_MODEL_LAST
 } virDomainNetModelType;

src/vz/vz_driver.c

@@ -265,10 +265,9 @@ vzDomainDeviceDefPostParse(virDomainDeviceDefPtr dev,
     if (dev->type == VIR_DOMAIN_DEVICE_NET &&
         (dev->data.net->type == VIR_DOMAIN_NET_TYPE_NETWORK ||
          dev->data.net->type == VIR_DOMAIN_NET_TYPE_BRIDGE) &&
-        !virDomainNetGetModelString(dev->data.net) &&
-        def->os.type == VIR_DOMAIN_OSTYPE_HVM &&
-        virDomainNetSetModelString(dev->data.net, "e1000") < 0)
-        return -1;
+        dev->data.net->model == VIR_DOMAIN_NET_MODEL_UNKNOWN &&
+        def->os.type == VIR_DOMAIN_OSTYPE_HVM)
+        dev->data.net->model = VIR_DOMAIN_NET_MODEL_E1000;
 
     return 0;
 }

src/vz/vz_sdk.c

@@ -1104,16 +1104,13 @@ prlsdkGetNetInfo(PRL_HANDLE netAdapter, virDomainNetDefPtr net, bool isCt)
 
         switch ((int)type) {
         case PNT_RTL:
-            if (virDomainNetSetModelString(net, "rtl8139") < 0)
-                goto cleanup;
+            net->model = VIR_DOMAIN_NET_MODEL_RTL8139;
             break;
         case PNT_E1000:
-            if (virDomainNetSetModelString(net, "e1000") < 0)
-                goto cleanup;
+            net->model = VIR_DOMAIN_NET_MODEL_E1000;
             break;
         case PNT_VIRTIO:
-            if (virDomainNetSetModelString(net, "virtio") < 0)
-                goto cleanup;
+            net->model = VIR_DOMAIN_NET_MODEL_VIRTIO;
             break;
         default:
             virReportError(VIR_ERR_INTERNAL_ERROR,
@@ -3377,15 +3374,15 @@ static int prlsdkConfigureNet(vzDriverPtr driver ATTRIBUTE_UNUSED,
         goto cleanup;
 
     if (isCt) {
-        if (virDomainNetGetModelString(net))
+        if (net->model != VIR_DOMAIN_NET_MODEL_UNKNOWN)
             VIR_WARN("Setting network adapter for containers is not "
                      "supported by vz driver.");
     } else {
-        if (virDomainNetStreqModelString(net, "rtl8139")) {
+        if (net->model == VIR_DOMAIN_NET_MODEL_RTL8139) {
             pret = PrlVmDevNet_SetAdapterType(sdknet, PNT_RTL);
-        } else if (virDomainNetStreqModelString(net, "e1000")) {
+        } else if (net->model == VIR_DOMAIN_NET_MODEL_E1000) {
             pret = PrlVmDevNet_SetAdapterType(sdknet, PNT_E1000);
-        } else if (virDomainNetStreqModelString(net, "virtio")) {
+        } else if (net->model == VIR_DOMAIN_NET_MODEL_VIRTIO) {
             pret = PrlVmDevNet_SetAdapterType(sdknet, PNT_VIRTIO);
         } else {
             virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",