qemu-patch-raspberry4/hw/virtio/vhost-user-fs-pci.c
Markus Armbruster 99ba777e53 qdev: Convert uses of qdev_set_parent_bus() with Coccinelle
In addition to the qdev_create() patterns converted so far, we have a
qdev_set_parent_bus() pattern.  Mostly when we embed a device in a
parent device rather than allocating it on the heap.

This pattern also puts devices in the dangerous "no QOM parent, but
plugged into bus" state I explained in recent commit "qdev: New
qdev_new(), qdev_realize(), etc."

Apply same solution: convert to qdev_realize().  Coccinelle script:

    @@
    expression dev, bus, errp;
    symbol true;
    @@
    -    qdev_set_parent_bus(DEVICE(dev), bus);
         ...
    -    object_property_set_bool(OBJECT(dev), true, "realized", errp);
    +    qdev_realize(DEVICE(dev), bus, errp);

    @ depends on !(file in "qdev-monitor.c") && !(file in "hw/core/qdev.c")@
    expression dev, bus, errp;
    symbol true;
    @@
    -    qdev_set_parent_bus(dev, bus);
         ...
    -    object_property_set_bool(OBJECT(dev), true, "realized", errp);
    +    qdev_realize(dev, bus, errp);

    @@
    expression dev, bus;
    symbol true;
    @@
    -    qdev_set_parent_bus(DEVICE(dev), bus);
         ...
    -    qdev_init_nofail(DEVICE(dev));
    +    qdev_realize(DEVICE(dev), bus, &error_fatal);

Unconverted uses of qdev_set_parent_bus() remain.  They'll be
converted later in this series.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200610053247.1583243-12-armbru@redhat.com>
[Also convert new hw/virtio/vhost-user-vsock-pci.c]
2020-06-15 22:05:08 +02:00

86 lines
2.6 KiB
C

/*
* Vhost-user filesystem virtio device PCI glue
*
* Copyright 2018-2019 Red Hat, Inc.
*
* Authors:
* Dr. David Alan Gilbert <dgilbert@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or
* (at your option) any later version. See the COPYING file in the
* top-level directory.
*/
#include "qemu/osdep.h"
#include "hw/qdev-properties.h"
#include "hw/virtio/vhost-user-fs.h"
#include "virtio-pci.h"
struct VHostUserFSPCI {
VirtIOPCIProxy parent_obj;
VHostUserFS vdev;
};
typedef struct VHostUserFSPCI VHostUserFSPCI;
#define TYPE_VHOST_USER_FS_PCI "vhost-user-fs-pci-base"
#define VHOST_USER_FS_PCI(obj) \
OBJECT_CHECK(VHostUserFSPCI, (obj), TYPE_VHOST_USER_FS_PCI)
static Property vhost_user_fs_pci_properties[] = {
DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
DEV_NVECTORS_UNSPECIFIED),
DEFINE_PROP_END_OF_LIST(),
};
static void vhost_user_fs_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
{
VHostUserFSPCI *dev = VHOST_USER_FS_PCI(vpci_dev);
DeviceState *vdev = DEVICE(&dev->vdev);
if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
/* Also reserve config change and hiprio queue vectors */
vpci_dev->nvectors = dev->vdev.conf.num_request_queues + 2;
}
qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
}
static void vhost_user_fs_pci_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
k->realize = vhost_user_fs_pci_realize;
set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
device_class_set_props(dc, vhost_user_fs_pci_properties);
pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
pcidev_k->device_id = 0; /* Set by virtio-pci based on virtio id */
pcidev_k->revision = 0x00;
pcidev_k->class_id = PCI_CLASS_STORAGE_OTHER;
}
static void vhost_user_fs_pci_instance_init(Object *obj)
{
VHostUserFSPCI *dev = VHOST_USER_FS_PCI(obj);
virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
TYPE_VHOST_USER_FS);
}
static const VirtioPCIDeviceTypeInfo vhost_user_fs_pci_info = {
.base_name = TYPE_VHOST_USER_FS_PCI,
.non_transitional_name = "vhost-user-fs-pci",
.instance_size = sizeof(VHostUserFSPCI),
.instance_init = vhost_user_fs_pci_instance_init,
.class_init = vhost_user_fs_pci_class_init,
};
static void vhost_user_fs_pci_register(void)
{
virtio_pci_types_register(&vhost_user_fs_pci_info);
}
type_init(vhost_user_fs_pci_register);