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vdpa: introduce map ops

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Virtio core allows the transport to provide device or transport
specific mapping functions. This patch adds this support to vDPA. We
can simply do this by allowing the vDPA parent to register a
virtio_map_ops.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20250924070045.10361-2-jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eugenio Pérez <eperezma@redhat.com>
This commit is contained in:
Jason Wang
2025-09-24 15:00:44 +08:00
committed by Michael S. Tsirkin
parent 58aca3dbc7
commit 0d16cc439f
12 changed files with 29 additions and 15 deletions
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4
drivers/virtio/virtio_vdpa.c
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@@ -466,9 +466,11 @@ static int virtio_vdpa_probe(struct vdpa_device *vdpa)
if (!vd_dev)
return -ENOMEM;
vd_dev->vdev.dev.parent = vdpa_get_map(vdpa).dma_dev;
vd_dev->vdev.dev.parent = vdpa->map ? &vdpa->dev :
vdpa_get_map(vdpa).dma_dev;
vd_dev->vdev.dev.release = virtio_vdpa_release_dev;
vd_dev->vdev.config = &virtio_vdpa_config_ops;
vd_dev->vdev.map = vdpa->map;
vd_dev->vdpa = vdpa;
vd_dev->vdev.id.device = ops->get_device_id(vdpa);