diff mbox series

[v13,13/42] virtio_ring: split: extract the logic of attach vring

Message ID 20220726072225.19884-14-xuanzhuo@linux.alibaba.com (mailing list archive)
State New, archived
Headers show
Series virtio pci support VIRTIO_F_RING_RESET | expand

Commit Message

Xuan Zhuo July 26, 2022, 7:21 a.m. UTC 
Separate the logic of attach vring, subsequent patches will call it
separately.

virtqueue_vring_init_split() completes the initialization of other
variables of vring split. We can directly use
vq->split = *vring_split to complete attach.

Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
---
 drivers/virtio/virtio_ring.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)
diff mbox series

Patch

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index ac973887484f..2067818f7047 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -967,6 +967,12 @@  static void virtqueue_vring_init_split(struct vring_virtqueue_split *vring_split
 	}
 }
 
+static void virtqueue_vring_attach_split(struct vring_virtqueue *vq,
+					 struct vring_virtqueue_split *vring_split)
+{
+	vq->split = *vring_split;
+}
+
 static int vring_alloc_state_extra_split(struct vring_virtqueue_split *vring_split)
 {
 	struct vring_desc_state_split *state;
@@ -1077,8 +1083,6 @@  static struct virtqueue *vring_create_virtqueue_split(
 		return NULL;
 	}
 
-	to_vvq(vq)->split.queue_dma_addr = vring_split.queue_dma_addr;
-	to_vvq(vq)->split.queue_size_in_bytes = vring_split.queue_size_in_bytes;
 	to_vvq(vq)->we_own_ring = true;
 
 	return vq;
@@ -2314,23 +2318,16 @@  static struct virtqueue *__vring_new_virtqueue(unsigned int index,
 	vq->indirect = virtio_has_feature(vdev, VIRTIO_RING_F_INDIRECT_DESC) &&
 		!context;
 
-	vq->split.queue_dma_addr = 0;
-	vq->split.queue_size_in_bytes = 0;
-
-	vq->split.vring = vring_split->vring;
-
 	err = vring_alloc_state_extra_split(vring_split);
 	if (err) {
 		kfree(vq);
 		return NULL;
 	}
 
-	vq->split.desc_state = vring_split->desc_state;
-	vq->split.desc_extra = vring_split->desc_extra;
-
 	virtqueue_vring_init_split(vring_split, vq);
 
 	virtqueue_init(vq, vring_split->vring.num);
+	virtqueue_vring_attach_split(vq, vring_split);
 
 	spin_lock(&vdev->vqs_list_lock);
 	list_add_tail(&vq->vq.list, &vdev->vqs);