X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=doc%2Fguides%2Fprog_guide%2Fvhost_lib.rst;h=171e0096f6d4ca44de6f122cc12ec173ff47a6f4;hb=6cc51b1293ceac4a77d4bf7ac91a8bbd59e1f78c;hp=258ca3e9d4ad93fc3be6714b50c9a31f3494932e;hpb=acbc38887b0a8c564e1f3fe1d9f65dfeb0d3c57a;p=dpdk.git

diff --git a/doc/guides/prog_guide/vhost_lib.rst b/doc/guides/prog_guide/vhost_lib.rst
index 258ca3e9d4..171e0096f6 100644
--- a/doc/guides/prog_guide/vhost_lib.rst
+++ b/doc/guides/prog_guide/vhost_lib.rst
@@ -235,13 +235,6 @@ The following is an overview of some key Vhost API functions:
     Currently, only ``RTE_VHOST_ASYNC_INORDER`` capable device is
     supported by vhost.
 
-  * ``async_threshold``
-
-    The copy length (in bytes) below which CPU copy will be used even if
-    applications call async vhost APIs to enqueue/dequeue data.
-
-    Typical value is 256~1024 depending on the async device capability.
-
   Applications must provide following ``ops`` callbacks for vhost lib to
   work with the async copy devices:
 
@@ -256,6 +249,14 @@ The following is an overview of some key Vhost API functions:
     vhost invokes this function to get the copy data completed by async
     devices.
 
+* ``rte_vhost_async_channel_register_thread_unsafe(vid, queue_id, config, ops)``
+
+  Register an async copy device channel for a vhost queue without
+  performing any locking.
+
+  This function is only safe to call in vhost callback functions
+  (i.e., struct vhost_device_ops).
+
 * ``rte_vhost_async_channel_unregister(vid, queue_id)``
 
   Unregister the async copy device channel from a vhost queue.
@@ -268,6 +269,14 @@ The following is an overview of some key Vhost API functions:
   devices for all vhost queues in destroy_device(), when a
   virtio device is paused or shut down.
 
+* ``rte_vhost_async_channel_unregister_thread_unsafe(vid, queue_id)``
+
+  Unregister the async copy device channel for a vhost queue without
+  performing any locking.
+
+  This function is only safe to call in vhost callback functions
+  (i.e., struct vhost_device_ops).
+
 * ``rte_vhost_submit_enqueue_burst(vid, queue_id, pkts, count, comp_pkts, comp_count)``
 
   Submit an enqueue request to transmit ``count`` packets from host to guest
@@ -289,6 +298,11 @@ The following is an overview of some key Vhost API functions:
   This function returns the amount of in-flight packets for the vhost
   queue using async acceleration.
 
+* ``rte_vhost_clear_queue_thread_unsafe(vid, queue_id, **pkts, count)``
+
+  Clear inflight packets which are submitted to DMA engine in vhost async data
+  path. Completed packets are returned to applications through ``pkts``.
+
 Vhost-user Implementations
 --------------------------