net/virtio-user: add virtual device

[dpdk.git] / doc / guides / rel_notes / release_16_07.rst

diff --git a/doc/guides/rel_notes/release_16_07.rst b/doc/guides/rel_notes/release_16_07.rst
index 1fab04f..c714052 100644 (file)
--- a/doc/guides/rel_notes/release_16_07.rst
+++ b/doc/guides/rel_notes/release_16_07.rst
@@ -51,6 +51,19 @@ New Features
 
   The ioports are mapped in memory when using Linux UIO.
 
+* **Virtio support for containers.**
+
+  Add a new virtual device, named virtio-user, to support virtio for containers.
+
+  Known limitations:
+
+  * Control queue and multi-queue are not supported yet.
+  * Cannot work with --huge-unlink.
+  * Cannot work with --no-huge.
+  * Cannot work when there are more than VHOST_MEMORY_MAX_NREGIONS(8) hugepages.
+  * Root privilege is a must for sorting hugepages by physical address.
+  * Can only be used with vhost user backend.
+
 * **Added vhost-user client mode.**
 
   DPDK vhost-user could be the server as well as the client. It supports
@@ -63,6 +76,13 @@ New Features
   that a brand new QEMU version (v2.7 or above) is needed, otherwise, the
   reconnect won't work.
 
+  DPDK vhost-user will also try to reconnect by default when
+
+  * the first connect fails (when QEMU is not started yet)
+  * the connection is broken (when QEMU restarts)
+
+  It can be turned off if flag ``RTE_VHOST_USER_NO_RECONNECT`` is set.
+
 * **Added AES-CTR support to AESNI MB PMD.**
 
   Now AESNI MB PMD supports 128/192/256-bit counter mode AES encryption and
@@ -180,6 +200,9 @@ API Changes
   as the parameter have been changed due to the ABI refactoring mentioned
   below: it's replaced by ``int vid``.
 
+* The function ``rte_vhost_enqueue_burst`` no longer supports concurrent enqueuing
+  packets to the same queue.
+
 
 ABI Changes
 -----------