diff options
| author | Xuan Zhuo <xuanzhuo@linux.alibaba.com> | 2022-08-01 14:38:41 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2022-08-11 04:06:39 -0400 |
| commit | 51d649f14aae0986c62cf798b262f99b49836e88 (patch) | |
| tree | 9b801d49c2b5deea283d8b32667e1da5159956ea /drivers/virtio | |
| parent | 1a107c87ebcf04ede1b86e5de192df34b6e50bd7 (diff) | |
virtio_ring: packed: extract the logic of attach vring
Separate the logic of attach vring, the subsequent patch will call it
separately.
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20220801063902.129329-22-xuanzhuo@linux.alibaba.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/virtio')
| -rw-r--r-- | drivers/virtio/virtio_ring.c | 25 |
1 files changed, 10 insertions, 15 deletions
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index a6f90e6e621b..93d2a950f536 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -1948,6 +1948,15 @@ static void virtqueue_vring_init_packed(struct vring_virtqueue_packed *vring_pac } } +static void virtqueue_vring_attach_packed(struct vring_virtqueue *vq, + struct vring_virtqueue_packed *vring_packed) +{ + vq->packed = *vring_packed; + + /* Put everything in free lists. */ + vq->free_head = 0; +} + static struct virtqueue *vring_create_virtqueue_packed( unsigned int index, unsigned int num, @@ -1993,28 +2002,14 @@ static struct virtqueue *vring_create_virtqueue_packed( if (virtio_has_feature(vdev, VIRTIO_F_ORDER_PLATFORM)) vq->weak_barriers = false; - vq->packed.ring_dma_addr = vring_packed.ring_dma_addr; - vq->packed.driver_event_dma_addr = vring_packed.driver_event_dma_addr; - vq->packed.device_event_dma_addr = vring_packed.device_event_dma_addr; - - vq->packed.ring_size_in_bytes = vring_packed.ring_size_in_bytes; - vq->packed.event_size_in_bytes = vring_packed.event_size_in_bytes; - - vq->packed.vring = vring_packed.vring; - err = vring_alloc_state_extra_packed(&vring_packed); if (err) goto err_state_extra; - /* Put everything in free lists. */ - vq->free_head = 0; - - vq->packed.desc_state = vring_packed.desc_state; - vq->packed.desc_extra = vring_packed.desc_extra; - virtqueue_vring_init_packed(&vring_packed, !!callback); virtqueue_init(vq, num); + virtqueue_vring_attach_packed(vq, &vring_packed); spin_lock(&vdev->vqs_list_lock); list_add_tail(&vq->vq.list, &vdev->vqs); |