doc: add eventdev library to release notes

[dpdk.git] / doc / guides / rel_notes / release_17_05.rst

diff --git a/doc/guides/rel_notes/release_17_05.rst b/doc/guides/rel_notes/release_17_05.rst
index 705ba27..d468e5b 100644 (file)
--- a/doc/guides/rel_notes/release_17_05.rst
+++ b/doc/guides/rel_notes/release_17_05.rst
@@ -67,6 +67,12 @@ New Features
 
   sPAPR IOMMU based pci probing enabled for vfio-pci devices.
 
+* **Kept consistent PMD batching behaviour.**
+
+  Removed the limit of fm10k/i40e/ixgbe TX burst size and vhost RX/TX burst size
+  in order to support the same policy of "make an best effort to RX/TX pkts"
+  for PMDs.
+
 * **Updated the ixgbe base driver.**
 
   Updated the ixgbe base driver, including the following changes:
@@ -100,6 +106,10 @@ New Features
   capability to change the TX scheduling mode for a TC. It's a global setting
   on a physical port.
 
+* **Added i40e dynamic device personalization support.**
+
+  * Added dynamic device personalization processing to i40e FW.
+
 * **Added TSO support for tunneled and non-tunneled packets on mlx5 driver.**
 
   Added support for Hardware TSO for tunneled and non-tunneled packets.
@@ -143,6 +153,41 @@ New Features
   * Generic flow API support for Ethernet, VLAN, IPv4, IPv6, UDP and TCP pattern
     items with DROP, QUEUE and PASSTHRU actions for ingress traffic.
 
+* **Added MTU feature support to Virtio and Vhost.**
+
+  Implemented new Virtio MTU feature into Vhost and Virtio:
+
+  * Add ``rte_vhost_mtu_get()`` API to Vhost library.
+  * Enable Vhost PMD's MTU get feature.
+  * Get max MTU value from host in Virtio PMD
+
+* **Added interrupt mode support for virtio-user.**
+
+  Implemented Rxq interrupt mode and LSC support for virtio-user as a virtual
+  device. Supported cases:
+
+  * Rxq interrupt for virtio-user + vhost-user as the backend.
+  * Rxq interrupt for virtio-user + vhost-kernel as the backend.
+  * LSC interrupt for virtio-user + vhost-user as the backend.
+
+* **Added event driven programming model library (rte_eventdev).**
+
+  This API introduces event driven programming model.
+
+  In a polling model, lcores poll ethdev ports and associated
+  rx queues directly to look for packet. In an event driven model,
+  by contrast, lcores call the scheduler that selects packets for
+  them based on programmer-specified criteria. Eventdev library
+  added support for event driven programming model, which offer
+  applications automatic multicore scaling, dynamic load balancing,
+  pipelining, packet ingress order maintenance and
+  synchronization services to simplify application packet processing.
+
+  By introducing event driven programming model, DPDK can support
+  both polling and event driven programming models for packet processing,
+  and applications are free to choose whatever model
+  (or combination of the two) that best suits their needs.
+
 
 Resolved Issues
 ---------------
@@ -198,6 +243,11 @@ Known Issues
    Also, make sure to start the actual text at the margin.
    =========================================================
 
+* **LSC interrupt cannot work for virtio-user + vhost-kernel.**
+
+  LSC interrupt cannot be detected when setting the backend, tap device,
+  up/down as we fail to find a way to monitor such event.
+
 
 API Changes
 -----------
@@ -248,6 +298,49 @@ API Changes
     flagged by the compiler. The return value usage should be checked
     while fixing the compiler error due to the extra parameter.
 
+* **Reworked rte_vhost library**
+
+  The rte_vhost library has been reworked to make it generic enough so that
+  user could build other vhost-user drivers on top of it. To achieve that,
+  following changes have been made:
+
+  * The following vhost-pmd APIs are removed:
+
+    * ``rte_eth_vhost_feature_disable``
+    * ``rte_eth_vhost_feature_enable``
+    * ``rte_eth_vhost_feature_get``
+
+  * The vhost API ``rte_vhost_driver_callback_register(ops)`` is reworked to
+    be per vhost-user socket file. Thus, it takes one more argument:
+    ``rte_vhost_driver_callback_register(path, ops)``.
+
+  * The vhost API ``rte_vhost_get_queue_num`` is deprecated, instead,
+    ``rte_vhost_get_vring_num`` should be used.
+
+  * Following macros are removed in ``rte_virtio_net.h``
+
+    * ``VIRTIO_RXQ``
+    * ``VIRTIO_TXQ``
+    * ``VIRTIO_QNUM``
+
+  * Following net specific header files are removed in ``rte_virtio_net.h``
+
+    * ``linux/virtio_net.h``
+    * ``sys/socket.h``
+    * ``linux/if.h``
+    * ``rte_ether.h``
+
+  * The vhost struct ``virtio_net_device_ops`` is renamed to
+    ``vhost_device_ops``
+
+  * The vhost API ``rte_vhost_driver_session_start`` is removed. Instead,
+    ``rte_vhost_driver_start`` should be used, and no need to create a
+    thread to call it.
+
+  * The vhost public header file ``rte_virtio_net.h`` is renamed to
+    ``rte_vhost.h``
+
+
 ABI Changes
 -----------