diff mbox series

[v10,20/41] virtio_ring: packed: extract the logic of attach vring

Message ID 20220624025621.128843-21-xuanzhuo@linux.alibaba.com (mailing list archive)
State Superseded
Headers show
Series virtio pci support VIRTIO_F_RING_RESET | expand

Checks

Context Check Description
netdev/tree_selection success Guessed tree name to be net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count fail Series longer than 15 patches (and no cover letter)
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 3 this patch: 3
netdev/cc_maintainers warning 5 maintainers not CCed: songliubraving@fb.com yhs@fb.com kafai@fb.com andrii@kernel.org kpsingh@kernel.org
netdev/build_clang success Errors and warnings before: 8 this patch: 8
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 3 this patch: 3
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 48 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Xuan Zhuo June 24, 2022, 2:56 a.m. UTC 
Separate the logic of attach vring, the subsequent patch will call it
separately.

Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
---
 drivers/virtio/virtio_ring.c | 29 +++++++++++++++++------------
 1 file changed, 17 insertions(+), 12 deletions(-)
diff mbox series

Patch

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 33271535c839..c4a9d6827cf8 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -1906,6 +1906,22 @@  static int vring_alloc_state_extra_packed(struct vring_virtqueue_packed *vring)
 	return -ENOMEM;
 }
 
+static void virtqueue_vring_attach_packed(struct vring_virtqueue *vq,
+					  struct vring_virtqueue_packed *vring)
+{
+	vq->packed.ring_dma_addr = vring->ring_dma_addr;
+	vq->packed.driver_event_dma_addr = vring->driver_event_dma_addr;
+	vq->packed.device_event_dma_addr = vring->device_event_dma_addr;
+
+	vq->packed.ring_size_in_bytes = vring->ring_size_in_bytes;
+	vq->packed.event_size_in_bytes = vring->event_size_in_bytes;
+
+	vq->packed.vring = vring->vring;
+
+	vq->packed.desc_state = vring->desc_state;
+	vq->packed.desc_extra = vring->desc_extra;
+}
+
 static struct virtqueue *vring_create_virtqueue_packed(
 	unsigned int index,
 	unsigned int num,
@@ -1942,15 +1958,6 @@  static struct virtqueue *vring_create_virtqueue_packed(
 	vq->indirect = virtio_has_feature(vdev, VIRTIO_RING_F_INDIRECT_DESC) &&
 		!context;
 
-	vq->packed.ring_dma_addr = vring.ring_dma_addr;
-	vq->packed.driver_event_dma_addr = vring.driver_event_dma_addr;
-	vq->packed.device_event_dma_addr = vring.device_event_dma_addr;
-
-	vq->packed.ring_size_in_bytes = vring.ring_size_in_bytes;
-	vq->packed.event_size_in_bytes = vring.event_size_in_bytes;
-
-	vq->packed.vring = vring.vring;
-
 	vq->packed.next_avail_idx = 0;
 	vq->packed.avail_wrap_counter = 1;
 	vq->packed.used_wrap_counter = 1;
@@ -1961,10 +1968,8 @@  static struct virtqueue *vring_create_virtqueue_packed(
 	if (err)
 		goto err_state_extra;
 
-	vq->packed.desc_state = vring.desc_state;
-	vq->packed.desc_extra = vring.desc_extra;
-
 	virtqueue_init(vq, num);
+	virtqueue_vring_attach_packed(vq, &vring);
 
 	/* No callback?  Tell other side not to bother us. */
 	if (!callback) {