e1b1f5341a
This allows other device classes that will be exposed via PCI to be able to do so in the appropriate hw/ directory. I resisted the temptation to re-order headers to be more aesthetically pleasing. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20200925125147.26943-4-alex.bennee@linaro.org> Message-Id: <20220321153037.3622127-2-alex.bennee@linaro.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
105 lines
3.1 KiB
C
105 lines
3.1 KiB
C
/*
|
|
* Vhost scsi PCI bindings
|
|
*
|
|
* Copyright IBM, Corp. 2011
|
|
*
|
|
* Authors:
|
|
* Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
|
|
*
|
|
* Changes for QEMU mainline + tcm_vhost kernel upstream:
|
|
* Nicholas Bellinger <nab@risingtidesystems.com>
|
|
*
|
|
* This work is licensed under the terms of the GNU LGPL, version 2 or later.
|
|
* See the COPYING.LIB file in the top-level directory.
|
|
*
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
|
|
#include "standard-headers/linux/virtio_pci.h"
|
|
#include "hw/qdev-properties.h"
|
|
#include "hw/virtio/vhost-scsi.h"
|
|
#include "qapi/error.h"
|
|
#include "qemu/module.h"
|
|
#include "hw/virtio/virtio-pci.h"
|
|
#include "qom/object.h"
|
|
|
|
typedef struct VHostSCSIPCI VHostSCSIPCI;
|
|
|
|
/*
|
|
* vhost-scsi-pci: This extends VirtioPCIProxy.
|
|
*/
|
|
#define TYPE_VHOST_SCSI_PCI "vhost-scsi-pci-base"
|
|
DECLARE_INSTANCE_CHECKER(VHostSCSIPCI, VHOST_SCSI_PCI,
|
|
TYPE_VHOST_SCSI_PCI)
|
|
|
|
struct VHostSCSIPCI {
|
|
VirtIOPCIProxy parent_obj;
|
|
VHostSCSI vdev;
|
|
};
|
|
|
|
static Property vhost_scsi_pci_properties[] = {
|
|
DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
|
|
DEV_NVECTORS_UNSPECIFIED),
|
|
DEFINE_PROP_END_OF_LIST(),
|
|
};
|
|
|
|
static void vhost_scsi_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
|
|
{
|
|
VHostSCSIPCI *dev = VHOST_SCSI_PCI(vpci_dev);
|
|
DeviceState *vdev = DEVICE(&dev->vdev);
|
|
VirtIOSCSIConf *conf = &dev->vdev.parent_obj.parent_obj.conf;
|
|
|
|
if (conf->num_queues == VIRTIO_SCSI_AUTO_NUM_QUEUES) {
|
|
conf->num_queues =
|
|
virtio_pci_optimal_num_queues(VIRTIO_SCSI_VQ_NUM_FIXED);
|
|
}
|
|
|
|
if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
|
|
vpci_dev->nvectors = conf->num_queues + VIRTIO_SCSI_VQ_NUM_FIXED + 1;
|
|
}
|
|
|
|
qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
|
|
}
|
|
|
|
static void vhost_scsi_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_scsi_pci_realize;
|
|
set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
|
|
device_class_set_props(dc, vhost_scsi_pci_properties);
|
|
pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
|
|
pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_SCSI;
|
|
pcidev_k->revision = 0x00;
|
|
pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI;
|
|
}
|
|
|
|
static void vhost_scsi_pci_instance_init(Object *obj)
|
|
{
|
|
VHostSCSIPCI *dev = VHOST_SCSI_PCI(obj);
|
|
|
|
virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
|
|
TYPE_VHOST_SCSI);
|
|
object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
|
|
"bootindex");
|
|
}
|
|
|
|
static const VirtioPCIDeviceTypeInfo vhost_scsi_pci_info = {
|
|
.base_name = TYPE_VHOST_SCSI_PCI,
|
|
.generic_name = "vhost-scsi-pci",
|
|
.transitional_name = "vhost-scsi-pci-transitional",
|
|
.non_transitional_name = "vhost-scsi-pci-non-transitional",
|
|
.instance_size = sizeof(VHostSCSIPCI),
|
|
.instance_init = vhost_scsi_pci_instance_init,
|
|
.class_init = vhost_scsi_pci_class_init,
|
|
};
|
|
|
|
static void vhost_scsi_pci_register(void)
|
|
{
|
|
virtio_pci_types_register(&vhost_scsi_pci_info);
|
|
}
|
|
|
|
type_init(vhost_scsi_pci_register)
|