[RFC PATCH 1/5] vsock/virtio: Extend virtio-vsock spec with an "order" field

[Xuewei Niu]

The "order" field determines the location of the device in the linked list,
the device with CID 4, having a smallest order, is in the first place, and
so forth.

Rules:

* It doesn’t have to be continuous;
* It cannot exist conflicts;
* It is optional for the mode of a single device, but is required for the
  mode of multiple devices.

Signed-off-by: Xuewei Niu <niuxuewei.nxw@xxxxxxxxxxxx>
---
 include/uapi/linux/virtio_vsock.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/uapi/linux/virtio_vsock.h b/include/uapi/linux/virtio_vsock.h
index 64738838bee5..b62ec7d2ab1e 100644
--- a/include/uapi/linux/virtio_vsock.h
+++ b/include/uapi/linux/virtio_vsock.h
@@ -43,6 +43,7 @@
 
 struct virtio_vsock_config {
 	__le64 guest_cid;
+	__le64 order;
 } __attribute__((packed));
 
 enum virtio_vsock_event_id {
-- 
2.34.1