Document the new VDUSE API version 1 features added to support live migration: - Address Space ID (ASID) support - Virtqueue groups - Queue ready feature (VDUSE_F_QUEUE_READY) - Suspend feature (VDUSE_F_SUSPEND) - Link status support (VIRTIO_NET_F_STATUS)
Signed-off-by: Eugenio Pérez <[email protected]> --- doc/guides/rel_notes/release_26_07.rst | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/doc/guides/rel_notes/release_26_07.rst b/doc/guides/rel_notes/release_26_07.rst index 6352ef27ab05..22c4da3efed6 100644 --- a/doc/guides/rel_notes/release_26_07.rst +++ b/doc/guides/rel_notes/release_26_07.rst @@ -131,6 +131,23 @@ New Features to support adding and removing memory regions without resetting the whole guest memory map. +* **Added VDUSE API version 1 support in vhost library.** + + Updated VDUSE (vDPA Device in Userspace) support with API version 1 features + to enable live migration: + + * Added Address Space ID (ASID) support for multiple independent address spaces + per device, enabling better isolation and support for virtqueue groups. + * Added virtqueue group support to assign different virtqueues to separate + address spaces (e.g., control queue vs data queues). + * Added ``VDUSE_F_QUEUE_READY`` feature for explicit dataplane queue + readiness signaling, ensuring proper device initialization ordering + during live migration. + * Added ``VDUSE_F_SUSPEND`` feature to reliably suspend virtqueue processing + and fetch virtqueue state during live migration. + * Added ``VIRTIO_NET_F_STATUS`` support for link status reporting and + gratuitous ARP signaling in VDUSE network devices. + * **Added LinkData sxe2 ethernet driver.** Added network driver for the LinkData network adapters. -- 2.55.0
