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virtio-pci: Introduce APIs to execute device parts admin commands

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Introduce APIs to handle the execution of device parts admin commands.

These APIs cover functionalities such as mode setting, object creation
and destruction, and operations like parts get/set and metadata
retrieval.

These APIs will be utilized in upcoming patches within this series.

Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Link: https://lore.kernel.org/r/20241113115200.209269-5-yishaih@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Yishai Hadas
2024-11-13 13:51:57 +02:00
committed by Alex Williamson
parent bfcad51860
commit 52a22c0ed0
3 changed files with 366 additions and 1 deletions
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8
drivers/virtio/virtio_pci_common.h
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@@ -173,7 +173,13 @@ struct virtio_device *virtio_pci_vf_get_pf_dev(struct pci_dev *pdev);
#define VIRTIO_DEV_PARTS_ADMIN_CMD_BITMAP \
(BIT_ULL(VIRTIO_ADMIN_CMD_CAP_ID_LIST_QUERY) | \
BIT_ULL(VIRTIO_ADMIN_CMD_DRIVER_CAP_SET) | \
BIT_ULL(VIRTIO_ADMIN_CMD_DEVICE_CAP_GET))
BIT_ULL(VIRTIO_ADMIN_CMD_DEVICE_CAP_GET) | \
BIT_ULL(VIRTIO_ADMIN_CMD_RESOURCE_OBJ_CREATE) | \
BIT_ULL(VIRTIO_ADMIN_CMD_RESOURCE_OBJ_DESTROY) | \
BIT_ULL(VIRTIO_ADMIN_CMD_DEV_PARTS_METADATA_GET) | \
BIT_ULL(VIRTIO_ADMIN_CMD_DEV_PARTS_GET) | \
BIT_ULL(VIRTIO_ADMIN_CMD_DEV_PARTS_SET) | \
BIT_ULL(VIRTIO_ADMIN_CMD_DEV_MODE_SET))
/* Unlike modern drivers which support hardware virtio devices, legacy drivers
* assume software-based devices: e.g. they don't use proper memory barriers