[Qemu-devel] [PATCH v3 3/7] virtio-net-pci: switch to the new API.

[fred.konrad@greensocs.com]

From: KONRAD Frederic <fred.konrad@greensocs.com>

Here the virtio-net-pci is modified for the new API. The device
virtio-net-pci extends virtio-pci. It creates and connects a
virtio-net-device during the init. The properties are not changed.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
---
 hw/virtio/virtio-pci.c | 114 ++++++++++++++++++++++++-------------------------
 hw/virtio/virtio-pci.h |  15 ++++++-
 2 files changed, 69 insertions(+), 60 deletions(-)

diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index cb4c064..6ac90f4 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -942,31 +942,6 @@ static void virtio_exit_pci(PCIDevice *pci_dev)
     msix_uninit_exclusive_bar(pci_dev);
 }
 
-static int virtio_net_init_pci(PCIDevice *pci_dev)
-{
-    VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
-    VirtIODevice *vdev;
-
-    vdev = virtio_net_init(&pci_dev->qdev, &proxy->nic, &proxy->net,
-                           proxy->host_features);
-
-    vdev->nvectors = proxy->nvectors;
-    virtio_init_pci(proxy, vdev);
-
-    /* make the actual value visible */
-    proxy->nvectors = vdev->nvectors;
-    return 0;
-}
-
-static void virtio_net_exit_pci(PCIDevice *pci_dev)
-{
-    VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
-
-    virtio_pci_stop_ioeventfd(proxy);
-    virtio_net_exit(proxy->vdev);
-    virtio_exit_pci(pci_dev);
-}
-
 static int virtio_rng_init_pci(PCIDevice *pci_dev)
 {
     VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
@@ -1002,38 +977,6 @@ static void virtio_rng_exit_pci(PCIDevice *pci_dev)
     virtio_exit_pci(pci_dev);
 }
 
-static Property virtio_net_properties[] = {
-    DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, false),
-    DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 3),
-    DEFINE_VIRTIO_NET_FEATURES(VirtIOPCIProxy, host_features),
-    DEFINE_NIC_PROPERTIES(VirtIOPCIProxy, nic),
-    DEFINE_VIRTIO_NET_PROPERTIES(VirtIOPCIProxy, net),
-    DEFINE_PROP_END_OF_LIST(),
-};
-
-static void virtio_net_class_init(ObjectClass *klass, void *data)
-{
-    DeviceClass *dc = DEVICE_CLASS(klass);
-    PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
-
-    k->init = virtio_net_init_pci;
-    k->exit = virtio_net_exit_pci;
-    k->romfile = "efi-virtio.rom";
-    k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
-    k->device_id = PCI_DEVICE_ID_VIRTIO_NET;
-    k->revision = VIRTIO_PCI_ABI_VERSION;
-    k->class_id = PCI_CLASS_NETWORK_ETHERNET;
-    dc->reset = virtio_pci_reset;
-    dc->props = virtio_net_properties;
-}
-
-static const TypeInfo virtio_net_info = {
-    .name          = "virtio-net-pci",
-    .parent        = TYPE_PCI_DEVICE,
-    .instance_size = sizeof(VirtIOPCIProxy),
-    .class_init    = virtio_net_class_init,
-};
-
 static void virtio_rng_initfn(Object *obj)
 {
     PCIDevice *pci_dev = PCI_DEVICE(obj);
@@ -1464,6 +1407,61 @@ static const TypeInfo virtio_serial_pci_info = {
     .class_init    = virtio_serial_pci_class_init,
 };
 
+/* virtio-net-pci */
+
+static Property virtio_net_properties[] = {
+    DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
+                    VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, false),
+    DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 3),
+    DEFINE_VIRTIO_NET_FEATURES(VirtIOPCIProxy, host_features),
+    DEFINE_NIC_PROPERTIES(VirtIONetPCI, vdev.nic_conf),
+    DEFINE_VIRTIO_NET_PROPERTIES(VirtIONetPCI, vdev.net_conf),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
+static int virtio_net_pci_init(VirtIOPCIProxy *vpci_dev)
+{
+    VirtIONetPCI *dev = VIRTIO_NET_PCI(vpci_dev);
+    DeviceState *vdev = DEVICE(&dev->vdev);
+
+    virtio_net_set_config_size(&dev->vdev, vpci_dev->host_features);
+    qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
+    if (qdev_init(vdev) < 0) {
+        return -1;
+    }
+    return 0;
+}
+
+static void virtio_net_pci_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+    VirtioPCIClass *vpciklass = VIRTIO_PCI_CLASS(klass);
+
+    k->romfile = "efi-virtio.rom";
+    k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
+    k->device_id = PCI_DEVICE_ID_VIRTIO_NET;
+    k->revision = VIRTIO_PCI_ABI_VERSION;
+    k->class_id = PCI_CLASS_NETWORK_ETHERNET;
+    dc->props = virtio_net_properties;
+    vpciklass->init = virtio_net_pci_init;
+}
+
+static void virtio_net_pci_instance_init(Object *obj)
+{
+    VirtIONetPCI *dev = VIRTIO_NET_PCI(obj);
+    object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_NET);
+    object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
+}
+
+static const TypeInfo virtio_net_pci_info = {
+    .name          = TYPE_VIRTIO_NET_PCI,
+    .parent        = TYPE_VIRTIO_PCI,
+    .instance_size = sizeof(VirtIONetPCI),
+    .instance_init = virtio_net_pci_instance_init,
+    .class_init    = virtio_net_pci_class_init,
+};
+
 /* virtio-pci-bus */
 
 void virtio_pci_bus_new(VirtioBusState *bus, VirtIOPCIProxy *dev)
@@ -1502,7 +1500,6 @@ static const TypeInfo virtio_pci_bus_info = {
 
 static void virtio_pci_register_types(void)
 {
-    type_register_static(&virtio_net_info);
     type_register_static(&virtio_rng_info);
     type_register_static(&virtio_pci_bus_info);
     type_register_static(&virtio_pci_info);
@@ -1513,6 +1510,7 @@ static void virtio_pci_register_types(void)
     type_register_static(&virtio_scsi_pci_info);
     type_register_static(&virtio_balloon_pci_info);
     type_register_static(&virtio_serial_pci_info);
+    type_register_static(&virtio_net_pci_info);
 }
 
 type_init(virtio_pci_register_types)
diff --git a/hw/virtio/virtio-pci.h b/hw/virtio/virtio-pci.h
index 85a795f..6f7116e 100644
--- a/hw/virtio/virtio-pci.h
+++ b/hw/virtio/virtio-pci.h
@@ -33,6 +33,7 @@ typedef struct VirtIOBlkPCI VirtIOBlkPCI;
 typedef struct VirtIOSCSIPCI VirtIOSCSIPCI;
 typedef struct VirtIOBalloonPCI VirtIOBalloonPCI;
 typedef struct VirtIOSerialPCI VirtIOSerialPCI;
+typedef struct VirtIONetPCI VirtIONetPCI;
 
 /* virtio-pci-bus */
 
@@ -81,9 +82,7 @@ struct VirtIOPCIProxy {
     uint32_t flags;
     uint32_t class_code;
     uint32_t nvectors;
-    NICConf nic;
     uint32_t host_features;
-    virtio_net_conf net;
     VirtIORNGConf rng;
     bool ioeventfd_disabled;
     bool ioeventfd_started;
@@ -159,6 +158,18 @@ typedef struct V9fsPCIState {
 
 #endif /* CONFIG_VIRTFS */
 
+/*
+ * virtio-net-pci: This extends VirtioPCIProxy.
+ */
+#define TYPE_VIRTIO_NET_PCI "virtio-net-pci"
+#define VIRTIO_NET_PCI(obj) \
+        OBJECT_CHECK(VirtIONetPCI, (obj), TYPE_VIRTIO_NET_PCI)
+
+struct VirtIONetPCI {
+    VirtIOPCIProxy parent_obj;
+    VirtIONet vdev;
+};
+
 void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev);
 void virtio_pci_bus_new(VirtioBusState *bus, VirtIOPCIProxy *dev);
 
-- 
1.8.1.4