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
+ server mode only before, now it also supports client mode. Client mode
+ is enabled when ``RTE_VHOST_USER_CLIENT`` flag is set while calling
+ ``rte_vhost_driver_register``.
+
+ When DPDK vhost-user restarts from normal or abnormal quit (say crash),
+ the client mode would allow DPDK to establish the connect again. Note
+ 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
* The function ``rte_eth_dev_info_get`` fill the new fields ``nb_rx_queues``
and ``nb_tx_queues`` in the structure ``rte_eth_dev_info``.
+* The vhost function ``rte_vring_available_entries`` is renamed to
+ ``rte_vhost_avail_entries``.
+
+* All existing vhost APIs and callbacks with ``virtio_net`` struct pointer
+ 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
-----------
* The ``rte_eth_dev_info`` structure has new fields ``nb_rx_queues`` and ``nb_tx_queues``
to support number of queues configured by software.
+* vhost ABI refactoring has been made: ``virtio_net`` structure is never
+ exported to application any more. Instead, a handle, ``vid``, has been
+ used to represent this structure internally.
+
Shared Library Versions
-----------------------
librte_sched.so.1
librte_table.so.2
librte_timer.so.1
- librte_vhost.so.2
+ + librte_vhost.so.3
Tested Platforms