1ea7af5dbSJuan Quintela /*
2ea7af5dbSJuan Quintela * Virtio blk PCI Bindings
3ea7af5dbSJuan Quintela *
4ea7af5dbSJuan Quintela * Copyright IBM, Corp. 2007
5ea7af5dbSJuan Quintela * Copyright (c) 2009 CodeSourcery
6ea7af5dbSJuan Quintela *
7ea7af5dbSJuan Quintela * Authors:
8ea7af5dbSJuan Quintela * Anthony Liguori <aliguori@us.ibm.com>
9ea7af5dbSJuan Quintela * Paul Brook <paul@codesourcery.com>
10ea7af5dbSJuan Quintela *
11ea7af5dbSJuan Quintela * This work is licensed under the terms of the GNU GPL, version 2. See
12ea7af5dbSJuan Quintela * the COPYING file in the top-level directory.
13ea7af5dbSJuan Quintela *
14ea7af5dbSJuan Quintela * Contributions after 2012-01-13 are licensed under the terms of the
15ea7af5dbSJuan Quintela * GNU GPL, version 2 or (at your option) any later version.
16ea7af5dbSJuan Quintela */
17ea7af5dbSJuan Quintela
18ea7af5dbSJuan Quintela #include "qemu/osdep.h"
19ea7af5dbSJuan Quintela
20a27bd6c7SMarkus Armbruster #include "hw/qdev-properties.h"
21ea7af5dbSJuan Quintela #include "hw/virtio/virtio-blk.h"
22*e1b1f534SAlex Bennée #include "hw/virtio/virtio-pci.h"
23ea7af5dbSJuan Quintela #include "qapi/error.h"
240b8fa32fSMarkus Armbruster #include "qemu/module.h"
25db1015e9SEduardo Habkost #include "qom/object.h"
26ea7af5dbSJuan Quintela
27ea7af5dbSJuan Quintela typedef struct VirtIOBlkPCI VirtIOBlkPCI;
28ea7af5dbSJuan Quintela
29ea7af5dbSJuan Quintela /*
30ea7af5dbSJuan Quintela * virtio-blk-pci: This extends VirtioPCIProxy.
31ea7af5dbSJuan Quintela */
32ea7af5dbSJuan Quintela #define TYPE_VIRTIO_BLK_PCI "virtio-blk-pci-base"
338110fa1dSEduardo Habkost DECLARE_INSTANCE_CHECKER(VirtIOBlkPCI, VIRTIO_BLK_PCI,
348110fa1dSEduardo Habkost TYPE_VIRTIO_BLK_PCI)
35ea7af5dbSJuan Quintela
36ea7af5dbSJuan Quintela struct VirtIOBlkPCI {
37ea7af5dbSJuan Quintela VirtIOPCIProxy parent_obj;
38ea7af5dbSJuan Quintela VirtIOBlock vdev;
39ea7af5dbSJuan Quintela };
40ea7af5dbSJuan Quintela
41ea7af5dbSJuan Quintela static Property virtio_blk_pci_properties[] = {
42ea7af5dbSJuan Quintela DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0),
43ea7af5dbSJuan Quintela DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
44ea7af5dbSJuan Quintela VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
45ea7af5dbSJuan Quintela DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
46ea7af5dbSJuan Quintela DEV_NVECTORS_UNSPECIFIED),
47ea7af5dbSJuan Quintela DEFINE_PROP_END_OF_LIST(),
48ea7af5dbSJuan Quintela };
49ea7af5dbSJuan Quintela
virtio_blk_pci_realize(VirtIOPCIProxy * vpci_dev,Error ** errp)50ea7af5dbSJuan Quintela static void virtio_blk_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
51ea7af5dbSJuan Quintela {
52ea7af5dbSJuan Quintela VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(vpci_dev);
53ea7af5dbSJuan Quintela DeviceState *vdev = DEVICE(&dev->vdev);
549445e1e1SStefan Hajnoczi VirtIOBlkConf *conf = &dev->vdev.conf;
559445e1e1SStefan Hajnoczi
569445e1e1SStefan Hajnoczi if (conf->num_queues == VIRTIO_BLK_AUTO_NUM_QUEUES) {
579445e1e1SStefan Hajnoczi conf->num_queues = virtio_pci_optimal_num_queues(0);
589445e1e1SStefan Hajnoczi }
59ea7af5dbSJuan Quintela
60ea7af5dbSJuan Quintela if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
619445e1e1SStefan Hajnoczi vpci_dev->nvectors = conf->num_queues + 1;
62ea7af5dbSJuan Quintela }
63ea7af5dbSJuan Quintela
6499ba777eSMarkus Armbruster qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
65ea7af5dbSJuan Quintela }
66ea7af5dbSJuan Quintela
virtio_blk_pci_class_init(ObjectClass * klass,void * data)67ea7af5dbSJuan Quintela static void virtio_blk_pci_class_init(ObjectClass *klass, void *data)
68ea7af5dbSJuan Quintela {
69ea7af5dbSJuan Quintela DeviceClass *dc = DEVICE_CLASS(klass);
70ea7af5dbSJuan Quintela VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
71ea7af5dbSJuan Quintela PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
72ea7af5dbSJuan Quintela
73ea7af5dbSJuan Quintela set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
744f67d30bSMarc-André Lureau device_class_set_props(dc, virtio_blk_pci_properties);
75ea7af5dbSJuan Quintela k->realize = virtio_blk_pci_realize;
76ea7af5dbSJuan Quintela pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
77ea7af5dbSJuan Quintela pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_BLOCK;
78ea7af5dbSJuan Quintela pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
79ea7af5dbSJuan Quintela pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI;
80ea7af5dbSJuan Quintela }
81ea7af5dbSJuan Quintela
virtio_blk_pci_instance_init(Object * obj)82ea7af5dbSJuan Quintela static void virtio_blk_pci_instance_init(Object *obj)
83ea7af5dbSJuan Quintela {
84ea7af5dbSJuan Quintela VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(obj);
85ea7af5dbSJuan Quintela
86ea7af5dbSJuan Quintela virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
87ea7af5dbSJuan Quintela TYPE_VIRTIO_BLK);
88ea7af5dbSJuan Quintela object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
89d2623129SMarkus Armbruster "bootindex");
90ea7af5dbSJuan Quintela }
91ea7af5dbSJuan Quintela
92ea7af5dbSJuan Quintela static const VirtioPCIDeviceTypeInfo virtio_blk_pci_info = {
93ea7af5dbSJuan Quintela .base_name = TYPE_VIRTIO_BLK_PCI,
94ea7af5dbSJuan Quintela .generic_name = "virtio-blk-pci",
95ea7af5dbSJuan Quintela .transitional_name = "virtio-blk-pci-transitional",
96ea7af5dbSJuan Quintela .non_transitional_name = "virtio-blk-pci-non-transitional",
97ea7af5dbSJuan Quintela .instance_size = sizeof(VirtIOBlkPCI),
98ea7af5dbSJuan Quintela .instance_init = virtio_blk_pci_instance_init,
99ea7af5dbSJuan Quintela .class_init = virtio_blk_pci_class_init,
100ea7af5dbSJuan Quintela };
101ea7af5dbSJuan Quintela
virtio_blk_pci_register(void)102ea7af5dbSJuan Quintela static void virtio_blk_pci_register(void)
103ea7af5dbSJuan Quintela {
104ea7af5dbSJuan Quintela virtio_pci_types_register(&virtio_blk_pci_info);
105ea7af5dbSJuan Quintela }
106ea7af5dbSJuan Quintela
107ea7af5dbSJuan Quintela type_init(virtio_blk_pci_register)
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