X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=doc%2Fguides%2Fprog_guide%2Fvhost_lib.rst;h=dc292291679de5a5e37b58674403c7f6d2ae2866;hb=1b7b24389cee5baa421d334048782e3e99e7dec5;hp=ba4c62aeb84426a6185628c8b7cccd94fe95b56c;hpb=cacf8267cc14e84384dbc86f24f6b10e8aedbcbc;p=dpdk.git

diff --git a/doc/guides/prog_guide/vhost_lib.rst b/doc/guides/prog_guide/vhost_lib.rst
index ba4c62aeb8..dc29229167 100644
--- a/doc/guides/prog_guide/vhost_lib.rst
+++ b/doc/guides/prog_guide/vhost_lib.rst
@@ -245,11 +245,13 @@ The following is an overview of some key Vhost API functions:
 
   Unregister the async copy device channel from a vhost queue.
 
-* ``rte_vhost_submit_enqueue_burst(vid, queue_id, pkts, count)``
+* ``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
-  by async data path. Enqueue is not guaranteed to finish upon the return of
-  this API call.
+  by async data path. Successfully enqueued packets can be transfer completed
+  or being occupied by DMA engines; transfer completed packets are returned in
+  ``comp_pkts``, but others are not guaranteed to finish, when this API
+  call returns.
 
   Applications must not free the packets submitted for enqueue until the
   packets are completed.