ring: relax alignment constraint on ring structure

[dpdk.git] / doc / guides / rel_notes / release_18_05.rst

diff --git a/doc/guides/rel_notes/release_18_05.rst b/doc/guides/rel_notes/release_18_05.rst
index faf7af0..149e73b 100644 (file)
--- a/doc/guides/rel_notes/release_18_05.rst
+++ b/doc/guides/rel_notes/release_18_05.rst
@@ -69,6 +69,40 @@ New Features
   See the :doc:`../nics/axgbe` nic driver guide for more details on this
   new driver.
 
+* **Updated szedata2 PMD.**
+
+  Added support for new NFB-200G2QL card.
+
+* **Added support for Broadcom NetXtreme-S (BCM58800) family of controllers (aka Stingray)**
+
+  The BCM58800 devices feature a NetXtreme E-Series advanced network controller, a high-performance
+  ARM CPU block, PCI Express (PCIe) Gen3 interfaces, key accelerators for compute offload and a high-
+  speed memory subsystem including L3 cache and DDR4 interfaces, all interconnected by a coherent
+  Network-on-chip (NOC) fabric.
+
+  The ARM CPU subsystem features eight ARMv8 Cortex-A72 CPUs at 3.0 GHz, arranged in a multi-cluster
+  configuration.
+
+* **Added support for virtio-user server mode.**
+  In a container environment if the vhost-user backend restarts, there's no way
+  for it to reconnect to virtio-user. To address this, support for server mode
+  is added. In this mode the socket file is created by virtio-user, which the
+  backend connects to. This means that if the backend restarts, it can reconnect
+  to virtio-user and continue communications.
+
+* **Added crypto workload support to vhost library.**
+
+  New APIs are introduced in vhost library to enable virtio crypto support
+  including session creation/deletion handling and translating virtio-crypto
+  request into DPDK crypto operations. A sample application is also introduced.
+
+* **Added the Event Timer Adapter Library.**
+
+  The Event Timer Adapter Library extends the event-based model by introducing
+  APIs that allow applications to arm/cancel event timers that generate
+  timer expiry events. This new type of event is scheduled by an event device
+  along with existing types of events.
+
 * **Added device event monitor framework.**
 
   Added a general device event monitor framework at EAL, for device dynamic management.
@@ -160,6 +194,12 @@ ABI Changes
    Also, make sure to start the actual text at the margin.
    =========================================================
 
+* ring: the alignment constraints on the ring structure has been relaxed
+  to one cache line instead of two, and an empty cache line padding is
+  added between the producer and consumer structures. The size of the
+  structure and the offset of the fields remains the same on platforms
+  with 64B cache line, but change on other platforms.
+
 * **Additional fields in rte_eth_dev_info.**
 
   The ``rte_eth_dev_info`` structure has had two extra entries appended to the
@@ -168,6 +208,7 @@ ABI Changes
   type ``uint16_t``: ``burst_size``, ``ring_size``, and ``nb_queues``. These
   are parameter values recommended for use by the PMD.
 
+
 Removed Items
 -------------
 
@@ -258,7 +299,7 @@ The libraries prepended with a plus sign were incremented in this version.
      librte_power.so.1
      librte_rawdev.so.1
      librte_reorder.so.1
-     librte_ring.so.1
+   + librte_ring.so.2
      librte_sched.so.1
      librte_security.so.1
      librte_table.so.3