build: add option to enable LTO

[dpdk.git] / doc / guides / rel_notes / release_19_11.rst

diff --git a/doc/guides/rel_notes/release_19_11.rst b/doc/guides/rel_notes/release_19_11.rst
index 67ae6f2..12ab110 100644 (file)
--- a/doc/guides/rel_notes/release_19_11.rst
+++ b/doc/guides/rel_notes/release_19_11.rst
@@ -242,6 +242,21 @@ New Features
   * Added a console command to testpmd app, ``show port (port_id) ptypes`` which
     gives ability to print port supported ptypes in different protocol layers.
 
+* **Added new example l2fwd-event application.**
+
+  Added an example application `l2fwd-event` that adds event device support to
+  traditional l2fwd example. It demonstrates usage of poll and event mode IO
+  mechanism under a single application.
+
+* **Added build support for Link Time Optimization.**
+
+  LTO is an optimization technique used by the compiler to perform whole
+  program analysis and optimization at link time.  In order to do that
+  compilers store their internal representation of the source code that
+  the linker uses at the final stage of compilation process.
+
+  See :doc:`../prog_guide/lto` for more information:
+
 
 Removed Items
 -------------
@@ -311,6 +326,11 @@ API Changes
 * mem: hid the internal ``malloc_heap`` structure and the
   ``rte_malloc_heap.h`` header.
 
+* vfio: removed ``rte_vfio_dma_map`` and ``rte_vfio_dma_unmap`` that have
+  been marked as deprecated in release 19.05.
+  ``rte_vfio_container_dma_map`` and ``rte_vfio_container_dma_unmap`` can
+  be used as substitutes.
+
 * pci: removed the following functions deprecated since dpdk v17.11:
 
   - ``eal_parse_pci_BDF`` replaced by ``rte_pci_addr_parse``