vdpa: support virtio_map

Virtio core switches from DMA device to virtio_map, let's do that
as well for vDPA.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20250821064641.5025-8-jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Lei Yang <leiyang@redhat.com>
Reviewed-by: Eugenio Pérez <eperezma@redhat.com>

Author: jasowang

drivers/vdpa/alibaba/eni_vdpa.c

@@ -496,7 +496,7 @@ static int eni_vdpa_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	pci_set_master(pdev);
 	pci_set_drvdata(pdev, eni_vdpa);
 
-	eni_vdpa->vdpa.dma_dev = &pdev->dev;
+	eni_vdpa->vdpa.vmap.dma_dev = &pdev->dev;
 	eni_vdpa->queues = eni_vdpa_get_num_queues(eni_vdpa);
 
 	eni_vdpa->vring = devm_kcalloc(&pdev->dev, eni_vdpa->queues,

drivers/vdpa/ifcvf/ifcvf_main.c

@@ -713,7 +713,7 @@ static int ifcvf_vdpa_dev_add(struct vdpa_mgmt_dev *mdev, const char *name,
 
 	ifcvf_mgmt_dev->adapter = adapter;
 	adapter->pdev = pdev;
-	adapter->vdpa.dma_dev = &pdev->dev;
+	adapter->vdpa.vmap.dma_dev = &pdev->dev;
 	adapter->vdpa.mdev = mdev;
 	adapter->vf = vf;
 	vdpa_dev = &adapter->vdpa;

drivers/vdpa/mlx5/core/mr.c

@@ -378,7 +378,7 @@ static int map_direct_mr(struct mlx5_vdpa_dev *mvdev, struct mlx5_vdpa_direct_mr
 	u64 pa, offset;
 	u64 paend;
 	struct scatterlist *sg;
-	struct device *dma = mvdev->vdev.dma_dev;
+	struct device *dma = mvdev->vdev.vmap.dma_dev;
 
 	for (map = vhost_iotlb_itree_first(iotlb, mr->start, mr->end - 1);
 	     map; map = vhost_iotlb_itree_next(map, mr->start, mr->end - 1)) {
@@ -432,7 +432,7 @@ static int map_direct_mr(struct mlx5_vdpa_dev *mvdev, struct mlx5_vdpa_direct_mr
 
 static void unmap_direct_mr(struct mlx5_vdpa_dev *mvdev, struct mlx5_vdpa_direct_mr *mr)
 {
-	struct device *dma = mvdev->vdev.dma_dev;
+	struct device *dma = mvdev->vdev.vmap.dma_dev;
 
 	destroy_direct_mr(mvdev, mr);
 	dma_unmap_sg_attrs(dma, mr->sg_head.sgl, mr->nsg, DMA_BIDIRECTIONAL, 0);

drivers/vdpa/mlx5/net/mlx5_vnet.c

@@ -3395,14 +3395,17 @@ static int mlx5_vdpa_reset_map(struct vdpa_device *vdev, unsigned int asid)
 	return err;
 }
 
-static struct device *mlx5_get_vq_dma_dev(struct vdpa_device *vdev, u16 idx)
+static union virtio_map mlx5_get_vq_map(struct vdpa_device *vdev, u16 idx)
 {
 	struct mlx5_vdpa_dev *mvdev = to_mvdev(vdev);
+	union virtio_map map;
 
 	if (is_ctrl_vq_idx(mvdev, idx))
-		return &vdev->dev;
+		map.dma_dev = &vdev->dev;
+	else
+		map.dma_dev = mvdev->vdev.vmap.dma_dev;
 
-	return mvdev->vdev.dma_dev;
+	return map;
 }
 
 static void free_irqs(struct mlx5_vdpa_net *ndev)
@@ -3686,7 +3689,7 @@ static const struct vdpa_config_ops mlx5_vdpa_ops = {
 	.set_map = mlx5_vdpa_set_map,
 	.reset_map = mlx5_vdpa_reset_map,
 	.set_group_asid = mlx5_set_group_asid,
-	.get_vq_dma_dev = mlx5_get_vq_dma_dev,
+	.get_vq_map = mlx5_get_vq_map,
 	.free = mlx5_vdpa_free,
 	.suspend = mlx5_vdpa_suspend,
 	.resume = mlx5_vdpa_resume, /* Op disabled if not supported. */
@@ -3965,7 +3968,7 @@ static int mlx5_vdpa_dev_add(struct vdpa_mgmt_dev *v_mdev, const char *name,
 	}
 
 	ndev->mvdev.mlx_features = device_features;
-	mvdev->vdev.dma_dev = &mdev->pdev->dev;
+	mvdev->vdev.vmap.dma_dev = &mdev->pdev->dev;
 	err = mlx5_vdpa_alloc_resources(&ndev->mvdev);
 	if (err)
 		goto err_alloc;

drivers/vdpa/octeon_ep/octep_vdpa_main.c

@@ -516,7 +516,7 @@ static int octep_vdpa_dev_add(struct vdpa_mgmt_dev *mdev, const char *name,
 	}
 
 	oct_vdpa->pdev = pdev;
-	oct_vdpa->vdpa.dma_dev = &pdev->dev;
+	oct_vdpa->vdpa.vmap.dma_dev = &pdev->dev;
 	oct_vdpa->vdpa.mdev = mdev;
 	oct_vdpa->oct_hw = oct_hw;
 	vdpa_dev = &oct_vdpa->vdpa;

drivers/vdpa/pds/vdpa_dev.c

@@ -643,7 +643,7 @@ static int pds_vdpa_dev_add(struct vdpa_mgmt_dev *mdev, const char *name,
 
 	pdev = vdpa_aux->padev->vf_pdev;
 	dma_dev = &pdev->dev;
-	pdsv->vdpa_dev.dma_dev = dma_dev;
+	pdsv->vdpa_dev.vmap.dma_dev = dma_dev;
 
 	status = pds_vdpa_get_status(&pdsv->vdpa_dev);
 	if (status == 0xff) {

drivers/vdpa/solidrun/snet_main.c

@@ -1052,8 +1052,8 @@ static int snet_vdpa_probe_vf(struct pci_dev *pdev)
 	 */
 	snet_reserve_irq_idx(pf_irqs ? pdev_pf : pdev, snet);
 
-	/*set DMA device*/
-	snet->vdpa.dma_dev = &pdev->dev;
+	/* set map metadata */
+	snet->vdpa.vmap.dma_dev = &pdev->dev;
 
 	/* Register VDPA device */
 	ret = vdpa_register_device(&snet->vdpa, snet->cfg->vq_num);

drivers/vdpa/vdpa.c

@@ -151,7 +151,7 @@ static void vdpa_release_dev(struct device *d)
  * Driver should use vdpa_alloc_device() wrapper macro instead of
  * using this directly.
  *
- * Return: Returns an error when parent/config/dma_dev is not set or fail to get
+ * Return: Returns an error when parent/config/map is not set or fail to get
  *	   ida.
  */
 struct vdpa_device *__vdpa_alloc_device(struct device *parent,

drivers/vdpa/vdpa_sim/vdpa_sim.c

@@ -272,7 +272,7 @@ struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *dev_attr,
 		vringh_set_iotlb(&vdpasim->vqs[i].vring, &vdpasim->iommu[0],
 				 &vdpasim->iommu_lock);
 
-	vdpasim->vdpa.dma_dev = dev;
+	vdpasim->vdpa.vmap.dma_dev = dev;
 
 	return vdpasim;
 

drivers/vdpa/vdpa_user/vduse_dev.c

@@ -2022,7 +2022,7 @@ static int vduse_dev_init_vdpa(struct vduse_dev *dev, const char *name)
 		return ret;
 	}
 	set_dma_ops(&vdev->vdpa.dev, &vduse_dev_dma_ops);
-	vdev->vdpa.dma_dev = &vdev->vdpa.dev;
+	vdev->vdpa.vmap.dma_dev = &vdev->vdpa.dev;
 	vdev->vdpa.mdev = &vduse_mgmt->mgmt_dev;
 
 	return 0;