Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit f30eaf4a authored by Michael S. Tsirkin's avatar Michael S. Tsirkin
Browse files

virtio_pci: use priv for vq notification 



slightly reduce the amount of pointer chasing this needs to do.
More importantly, this will easily generalize to virtio 1.0.

Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent 3ec7a77b

drivers/virtio/virtio_pci.c

+2 −3
Original line number Diff line number Diff line
@@ -204,11 +204,9 @@ static void vp_reset(struct virtio_device *vdev) 
/* the notify function used when creating a virt queue */

static bool vp_notify(struct virtqueue *vq)

{

	struct virtio_pci_device *vp_dev = to_vp_device(vq->vdev);



	/* we write the queue's selector into the notification register to

	 * signal the other end */

	iowrite16(vq->index, vp_dev->ioaddr + VIRTIO_PCI_QUEUE_NOTIFY);

	iowrite16(vq->index, (void __iomem *)vq->priv);

	return true;

}
@@ -437,6 +435,7 @@ static struct virtqueue *setup_vq(struct virtio_device *vdev, unsigned index, 
		goto out_activate_queue;

	}



	vq->priv = (void __force *)vp_dev->ioaddr + VIRTIO_PCI_QUEUE_NOTIFY;

	info->vq = vq;



	if (msix_vec != VIRTIO_MSI_NO_VECTOR) {