return vp_ioread16(&mdev->common->queue_enable);
}
+/*
+ * vp_modern_set_queue_size - set size for a virtqueue
+ * @mdev: the modern virtio-pci device
+ * @index: the queue index
+ * @size: the size of the virtqueue
+ */
+static void vp_modern_set_queue_size(struct virtio_pci_modern_device *mdev,
+ u16 index, u16 size)
+{
+ vp_iowrite16(index, &mdev->common->queue_select);
+ vp_iowrite16(size, &mdev->common->queue_size);
+
+}
+
+/*
+ * vp_modern_get_queue_size - get size for a virtqueue
+ * @mdev: the modern virtio-pci device
+ * @index: the queue index
+ *
+ * Returns the size of the virtqueue
+ */
+static u16 vp_modern_get_queue_size(struct virtio_pci_modern_device *mdev,
+ u16 index)
+{
+ vp_iowrite16(index, &mdev->common->queue_select);
+
+ return vp_ioread16(&mdev->common->queue_size);
+
+}
+
/* virtio config->finalize_features() implementation */
static int vp_finalize_features(struct virtio_device *vdev)
{
vp_iowrite16(index, &cfg->queue_select);
/* Check if queue is either not available or already active. */
- num = vp_ioread16(&cfg->queue_size);
+ num = vp_modern_get_queue_size(mdev, index);
if (!num || vp_modern_get_queue_enable(mdev, index))
return ERR_PTR(-ENOENT);
return ERR_PTR(-ENOMEM);
/* activate the queue */
- vp_iowrite16(virtqueue_get_vring_size(vq), &cfg->queue_size);
+ vp_modern_set_queue_size(mdev, index, virtqueue_get_vring_size(vq));
vp_modern_queue_address(mdev, index, virtqueue_get_desc_addr(vq),
virtqueue_get_avail_addr(vq),
virtqueue_get_used_addr(vq));