Merging upstream version 6.10.3.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

3 files changed, 31 insertions, 8 deletions

diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c
index 6cb96a1e8b..8d391947eb 100644
--- a/drivers/vdpa/vdpa.c
+++ b/drivers/vdpa/vdpa.c
@@ -98,7 +98,7 @@ static ssize_t driver_override_show(struct device *dev,
 	ssize_t len;
 
 	device_lock(dev);
-	len = snprintf(buf, PAGE_SIZE, "%s\n", vdev->driver_override);
+	len = sysfs_emit(buf, "%s\n", vdev->driver_override);
 	device_unlock(dev);
 
 	return len;
diff --git a/drivers/vdpa/vdpa_user/vduse_dev.c b/drivers/vdpa/vdpa_user/vduse_dev.c
index ac8b5b52e3..7ae99691ef 100644
--- a/drivers/vdpa/vdpa_user/vduse_dev.c
+++ b/drivers/vdpa/vdpa_user/vduse_dev.c
@@ -143,6 +143,7 @@ static struct workqueue_struct *vduse_irq_bound_wq;
 
 static u32 allowed_device_id[] = {
 	VIRTIO_ID_BLOCK,
+	VIRTIO_ID_NET,
 };
 
 static inline struct vduse_dev *vdpa_to_vduse(struct vdpa_device *vdpa)
@@ -1720,6 +1721,10 @@ static bool features_is_valid(struct vduse_dev_config *config)
 			(config->features & BIT_ULL(VIRTIO_NET_F_CTRL_VQ)))
 		return false;
 
+	if ((config->device_id == VIRTIO_ID_NET) &&
+			!(config->features & BIT_ULL(VIRTIO_F_VERSION_1)))
+		return false;
+
 	return true;
 }
 
@@ -1827,6 +1832,10 @@ static int vduse_create_dev(struct vduse_dev_config *config,
 	int ret;
 	struct vduse_dev *dev;
 
+	ret = -EPERM;
+	if ((config->device_id == VIRTIO_ID_NET) && !capable(CAP_NET_ADMIN))
+		goto err;
+
 	ret = -EEXIST;
 	if (vduse_find_dev(config->name))
 		goto err;
@@ -2070,6 +2079,7 @@ static const struct vdpa_mgmtdev_ops vdpa_dev_mgmtdev_ops = {
 
 static struct virtio_device_id id_table[] = {
 	{ VIRTIO_ID_BLOCK, VIRTIO_DEV_ANY_ID },
+	{ VIRTIO_ID_NET, VIRTIO_DEV_ANY_ID },
 	{ 0 },
 };
 
diff --git a/drivers/vdpa/virtio_pci/vp_vdpa.c b/drivers/vdpa/virtio_pci/vp_vdpa.c
index df5f4a3bcc..ac4ab22f7d 100644
--- a/drivers/vdpa/virtio_pci/vp_vdpa.c
+++ b/drivers/vdpa/virtio_pci/vp_vdpa.c
@@ -160,7 +160,13 @@ static int vp_vdpa_request_irq(struct vp_vdpa *vp_vdpa)
 	struct pci_dev *pdev = mdev->pci_dev;
 	int i, ret, irq;
 	int queues = vp_vdpa->queues;
-	int vectors = queues + 1;
+	int vectors = 1;
+	int msix_vec = 0;
+
+	for (i = 0; i < queues; i++) {
+		if (vp_vdpa->vring[i].cb.callback)
+			vectors++;
+	}
 
 	ret = pci_alloc_irq_vectors(pdev, vectors, vectors, PCI_IRQ_MSIX);
 	if (ret != vectors) {
@@ -173,9 +179,12 @@ static int vp_vdpa_request_irq(struct vp_vdpa *vp_vdpa)
 	vp_vdpa->vectors = vectors;
 
 	for (i = 0; i < queues; i++) {
+		if (!vp_vdpa->vring[i].cb.callback)
+			continue;
+
 		snprintf(vp_vdpa->vring[i].msix_name, VP_VDPA_NAME_SIZE,
 			"vp-vdpa[%s]-%d\n", pci_name(pdev), i);
-		irq = pci_irq_vector(pdev, i);
+		irq = pci_irq_vector(pdev, msix_vec);
 		ret = devm_request_irq(&pdev->dev, irq,
 				       vp_vdpa_vq_handler,
 				       0, vp_vdpa->vring[i].msix_name,
@@ -185,21 +194,22 @@ static int vp_vdpa_request_irq(struct vp_vdpa *vp_vdpa)
 				"vp_vdpa: fail to request irq for vq %d\n", i);
 			goto err;
 		}
-		vp_modern_queue_vector(mdev, i, i);
+		vp_modern_queue_vector(mdev, i, msix_vec);
 		vp_vdpa->vring[i].irq = irq;
+		msix_vec++;
 	}
 
 	snprintf(vp_vdpa->msix_name, VP_VDPA_NAME_SIZE, "vp-vdpa[%s]-config\n",
 		 pci_name(pdev));
-	irq = pci_irq_vector(pdev, queues);
+	irq = pci_irq_vector(pdev, msix_vec);
 	ret = devm_request_irq(&pdev->dev, irq,	vp_vdpa_config_handler, 0,
 			       vp_vdpa->msix_name, vp_vdpa);
 	if (ret) {
 		dev_err(&pdev->dev,
-			"vp_vdpa: fail to request irq for vq %d\n", i);
+			"vp_vdpa: fail to request irq for config: %d\n", ret);
 			goto err;
 	}
-	vp_modern_config_vector(mdev, queues);
+	vp_modern_config_vector(mdev, msix_vec);
 	vp_vdpa->config_irq = irq;
 
 	return 0;
@@ -216,7 +226,10 @@ static void vp_vdpa_set_status(struct vdpa_device *vdpa, u8 status)
 
 	if (status & VIRTIO_CONFIG_S_DRIVER_OK &&
 	    !(s & VIRTIO_CONFIG_S_DRIVER_OK)) {
-		vp_vdpa_request_irq(vp_vdpa);
+		if (vp_vdpa_request_irq(vp_vdpa)) {
+			WARN_ON(1);
+			return;
+		}
 	}
 
 	vp_modern_set_status(mdev, status);