1 files changed, 77 insertions, 67 deletions

diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c
index 0a5670729412..f9c0044c6442 100644
--- a/drivers/vdpa/ifcvf/ifcvf_main.c
+++ b/drivers/vdpa/ifcvf/ifcvf_main.c
@@ -685,7 +685,7 @@ static struct vdpa_notification_area ifcvf_get_vq_notification(struct vdpa_devic
 }
 
 /*
- * IFCVF currently does't have on-chip IOMMU, so not
+ * IFCVF currently doesn't have on-chip IOMMU, so not
  * implemented set_map()/dma_map()/dma_unmap()
  */
 static const struct vdpa_config_ops ifc_vdpa_ops = {
@@ -752,59 +752,36 @@ static int ifcvf_vdpa_dev_add(struct vdpa_mgmt_dev *mdev, const char *name,
 {
 	struct ifcvf_vdpa_mgmt_dev *ifcvf_mgmt_dev;
 	struct ifcvf_adapter *adapter;
+	struct vdpa_device *vdpa_dev;
 	struct pci_dev *pdev;
 	struct ifcvf_hw *vf;
-	struct device *dev;
-	int ret, i;
+	int ret;
 
 	ifcvf_mgmt_dev = container_of(mdev, struct ifcvf_vdpa_mgmt_dev, mdev);
-	if (ifcvf_mgmt_dev->adapter)
+	if (!ifcvf_mgmt_dev->adapter)
 		return -EOPNOTSUPP;
 
-	pdev = ifcvf_mgmt_dev->pdev;
-	dev = &pdev->dev;
-	adapter = vdpa_alloc_device(struct ifcvf_adapter, vdpa,
-				    dev, &ifc_vdpa_ops, 1, 1, name, false);
-	if (IS_ERR(adapter)) {
-		IFCVF_ERR(pdev, "Failed to allocate vDPA structure");
-		return PTR_ERR(adapter);
-	}
-
-	ifcvf_mgmt_dev->adapter = adapter;
-
+	adapter = ifcvf_mgmt_dev->adapter;
 	vf = &adapter->vf;
-	vf->dev_type = get_dev_type(pdev);
-	vf->base = pcim_iomap_table(pdev);
+	pdev = adapter->pdev;
+	vdpa_dev = &adapter->vdpa;
 
-	adapter->pdev = pdev;
-	adapter->vdpa.dma_dev = &pdev->dev;
-
-	ret = ifcvf_init_hw(vf, pdev);
-	if (ret) {
-		IFCVF_ERR(pdev, "Failed to init IFCVF hw\n");
-		goto err;
-	}
-
-	for (i = 0; i < vf->nr_vring; i++)
-		vf->vring[i].irq = -EINVAL;
-
-	vf->hw_features = ifcvf_get_hw_features(vf);
-	vf->config_size = ifcvf_get_config_size(vf);
+	if (name)
+		ret = dev_set_name(&vdpa_dev->dev, "%s", name);
+	else
+		ret = dev_set_name(&vdpa_dev->dev, "vdpa%u", vdpa_dev->index);
 
-	adapter->vdpa.mdev = &ifcvf_mgmt_dev->mdev;
 	ret = _vdpa_register_device(&adapter->vdpa, vf->nr_vring);
 	if (ret) {
+		put_device(&adapter->vdpa.dev);
 		IFCVF_ERR(pdev, "Failed to register to vDPA bus");
-		goto err;
+		return ret;
 	}
 
 	return 0;
-
-err:
-	put_device(&adapter->vdpa.dev);
-	return ret;
 }
 
+
 static void ifcvf_vdpa_dev_del(struct vdpa_mgmt_dev *mdev, struct vdpa_device *dev)
 {
 	struct ifcvf_vdpa_mgmt_dev *ifcvf_mgmt_dev;
@@ -823,61 +800,94 @@ static int ifcvf_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 {
 	struct ifcvf_vdpa_mgmt_dev *ifcvf_mgmt_dev;
 	struct device *dev = &pdev->dev;
+	struct ifcvf_adapter *adapter;
+	struct ifcvf_hw *vf;
 	u32 dev_type;
-	int ret;
-
-	ifcvf_mgmt_dev = kzalloc(sizeof(struct ifcvf_vdpa_mgmt_dev), GFP_KERNEL);
-	if (!ifcvf_mgmt_dev) {
-		IFCVF_ERR(pdev, "Failed to alloc memory for the vDPA management device\n");
-		return -ENOMEM;
-	}
-
-	dev_type = get_dev_type(pdev);
-	switch (dev_type) {
-	case VIRTIO_ID_NET:
-		ifcvf_mgmt_dev->mdev.id_table = id_table_net;
-		break;
-	case VIRTIO_ID_BLOCK:
-		ifcvf_mgmt_dev->mdev.id_table = id_table_blk;
-		break;
-	default:
-		IFCVF_ERR(pdev, "VIRTIO ID %u not supported\n", dev_type);
-		ret = -EOPNOTSUPP;
-		goto err;
-	}
-
-	ifcvf_mgmt_dev->mdev.ops = &ifcvf_vdpa_mgmt_dev_ops;
-	ifcvf_mgmt_dev->mdev.device = dev;
-	ifcvf_mgmt_dev->pdev = pdev;
+	int ret, i;
 
 	ret = pcim_enable_device(pdev);
 	if (ret) {
 		IFCVF_ERR(pdev, "Failed to enable device\n");
-		goto err;
+		return ret;
 	}
-
 	ret = pcim_iomap_regions(pdev, BIT(0) | BIT(2) | BIT(4),
 				 IFCVF_DRIVER_NAME);
 	if (ret) {
 		IFCVF_ERR(pdev, "Failed to request MMIO region\n");
-		goto err;
+		return ret;
 	}
 
 	ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));
 	if (ret) {
 		IFCVF_ERR(pdev, "No usable DMA configuration\n");
-		goto err;
+		return ret;
 	}
 
 	ret = devm_add_action_or_reset(dev, ifcvf_free_irq_vectors, pdev);
 	if (ret) {
 		IFCVF_ERR(pdev,
 			  "Failed for adding devres for freeing irq vectors\n");
-		goto err;
+		return ret;
 	}
 
 	pci_set_master(pdev);
 
+	adapter = vdpa_alloc_device(struct ifcvf_adapter, vdpa,
+				    dev, &ifc_vdpa_ops, 1, 1, NULL, false);
+	if (IS_ERR(adapter)) {
+		IFCVF_ERR(pdev, "Failed to allocate vDPA structure");
+		return PTR_ERR(adapter);
+	}
+
+	vf = &adapter->vf;
+	vf->dev_type = get_dev_type(pdev);
+	vf->base = pcim_iomap_table(pdev);
+
+	adapter->pdev = pdev;
+	adapter->vdpa.dma_dev = &pdev->dev;
+
+	ret = ifcvf_init_hw(vf, pdev);
+	if (ret) {
+		IFCVF_ERR(pdev, "Failed to init IFCVF hw\n");
+		return ret;
+	}
+
+	for (i = 0; i < vf->nr_vring; i++)
+		vf->vring[i].irq = -EINVAL;
+
+	vf->hw_features = ifcvf_get_hw_features(vf);
+	vf->config_size = ifcvf_get_config_size(vf);
+
+	ifcvf_mgmt_dev = kzalloc(sizeof(struct ifcvf_vdpa_mgmt_dev), GFP_KERNEL);
+	if (!ifcvf_mgmt_dev) {
+		IFCVF_ERR(pdev, "Failed to alloc memory for the vDPA management device\n");
+		return -ENOMEM;
+	}
+
+	ifcvf_mgmt_dev->mdev.ops = &ifcvf_vdpa_mgmt_dev_ops;
+	ifcvf_mgmt_dev->mdev.device = dev;
+	ifcvf_mgmt_dev->adapter = adapter;
+
+	dev_type = get_dev_type(pdev);
+	switch (dev_type) {
+	case VIRTIO_ID_NET:
+		ifcvf_mgmt_dev->mdev.id_table = id_table_net;
+		break;
+	case VIRTIO_ID_BLOCK:
+		ifcvf_mgmt_dev->mdev.id_table = id_table_blk;
+		break;
+	default:
+		IFCVF_ERR(pdev, "VIRTIO ID %u not supported\n", dev_type);
+		ret = -EOPNOTSUPP;
+		goto err;
+	}
+
+	ifcvf_mgmt_dev->mdev.max_supported_vqs = vf->nr_vring;
+	ifcvf_mgmt_dev->mdev.supported_features = vf->hw_features;
+
+	adapter->vdpa.mdev = &ifcvf_mgmt_dev->mdev;
+
+
 	ret = vdpa_mgmtdev_register(&ifcvf_mgmt_dev->mdev);
 	if (ret) {
 		IFCVF_ERR(pdev,