numam-dpdk/doc/guides/rel_notes/release_19_08.rst

..  SPDX-License-Identifier: BSD-3-Clause
    Copyright 2019 The DPDK contributors

DPDK Release 19.08
==================

.. **Read this first.**

   The text in the sections below explains how to update the release notes.

   Use proper spelling, capitalization and punctuation in all sections.

   Variable and config names should be quoted as fixed width text:
   ``LIKE_THIS``.

   Build the docs and view the output file to ensure the changes are correct::

      make doc-guides-html

      xdg-open build/doc/html/guides/rel_notes/release_19_08.html


New Features
------------

.. This section should contain new features added in this release.
   Sample format:

   * **Add a title in the past tense with a full stop.**

     Add a short 1-2 sentence description in the past tense.
     The description should be enough to allow someone scanning
     the release notes to understand the new feature.

     If the feature adds a lot of sub-features you can use a bullet list
     like this:

     * Added feature foo to do something.
     * Enhanced feature bar to do something else.

     Refer to the previous release notes for examples.

     Suggested order in release notes items:
     * Core libs (EAL, mempool, ring, mbuf, buses)
     * Device abstraction libs and PMDs
       - ethdev (lib, PMDs)
       - cryptodev (lib, PMDs)
       - eventdev (lib, PMDs)
       - etc
     * Other libs
     * Apps, Examples, Tools (if significant)

     This section is a comment. Do not overwrite or remove it.
     Also, make sure to start the actual text at the margin.
     =========================================================

* **Updated the bnxt PMD.**

  Updated the bnxt PMD. The major enhancements include:

  * Performance optimizations in non-vector Tx path
  * Added support for SSE vector mode
  * Updated HWRM API to version 1.10.0.74

* **Added support for Broadcom NetXtreme-E BCM57500 Ethernet controllers.**

  Added support to the bnxt PMD for the BCM57500 (a.k.a. "Thor") family
  of Ethernet controllers. These controllers support link speeds up to
  200Gbps, 50G PAM-4, and PCIe 4.0.

* **Updated the ice driver.**

  Updated ice driver with new features and improvements, including:

  * Enabled Tx outer/inner L3/L4 checksum offload.

* **Updated Solarflare network PMD.**

  Updated the Solarflare ``sfc_efx`` driver with changes including:

  * Added support for Rx interrupts.

* **Added memif PMD.**

  Added the new Shared Memory Packet Interface (``memif``) PMD.
  See the :doc:`../nics/memif` guide for more details on this new driver.

* **Updated the AF_XDP PMD.**

  Updated the AF_XDP PMD. The new features include:

  * Enabled zero copy through mbuf's external memory mechanism to achieve
    high performance
  * Added multi-queue support to allow one af_xdp vdev with multiple netdev
    queues

* **Updated telemetry library for global metrics support.**

  Updated ``librte_telemetry`` to fetch the global metrics from the
  ``librte_metrics`` library.

* **Added new telemetry mode for l3fwd-power application.**

  Added telemetry mode to l3fwd-power application to report
  application level busyness, empty and full polls of rte_eth_rx_burst().


Removed Items
-------------

.. This section should contain removed items in this release. Sample format:

   * Add a short 1-2 sentence description of the removed item
     in the past tense.

   This section is a comment. Do not overwrite or remove it.
   Also, make sure to start the actual text at the margin.
   =========================================================

* Removed KNI ethtool, CONFIG_RTE_KNI_KMOD_ETHTOOL, support.

* build: armv8 crypto extension is disabled.


API Changes
-----------

.. This section should contain API changes. Sample format:

   * sample: Add a short 1-2 sentence description of the API change
     which was announced in the previous releases and made in this release.
     Start with a scope label like "ethdev:".
     Use fixed width quotes for ``function_names`` or ``struct_names``.
     Use the past tense.

   This section is a comment. Do not overwrite or remove it.
   Also, make sure to start the actual text at the margin.
   =========================================================

* The network structures, definitions and functions have
  been prefixed by ``rte_`` to resolve conflicts with libc headers.


ABI Changes
-----------

.. This section should contain ABI changes. Sample format:

   * sample: Add a short 1-2 sentence description of the ABI change
     which was announced in the previous releases and made in this release.
     Start with a scope label like "ethdev:".
     Use fixed width quotes for ``function_names`` or ``struct_names``.
     Use the past tense.

   This section is a comment. Do not overwrite or remove it.
   Also, make sure to start the actual text at the margin.
   =========================================================


Shared Library Versions
-----------------------

.. Update any library version updated in this release
   and prepend with a ``+`` sign, like this:

     libfoo.so.1
   + libupdated.so.2
     libbar.so.1

   This section is a comment. Do not overwrite or remove it.
   =========================================================

The libraries prepended with a plus sign were incremented in this version.

.. code-block:: diff

     librte_acl.so.2
     librte_bbdev.so.1
     librte_bitratestats.so.2
     librte_bpf.so.1
     librte_bus_dpaa.so.2
     librte_bus_fslmc.so.2
     librte_bus_ifpga.so.2
     librte_bus_pci.so.2
     librte_bus_vdev.so.2
     librte_bus_vmbus.so.2
     librte_cfgfile.so.2
     librte_cmdline.so.2
     librte_compressdev.so.1
     librte_cryptodev.so.7
     librte_distributor.so.1
     librte_eal.so.10
     librte_efd.so.1
     librte_ethdev.so.12
     librte_eventdev.so.6
     librte_flow_classify.so.1
     librte_gro.so.1
     librte_gso.so.1
     librte_hash.so.2
     librte_ip_frag.so.1
     librte_ipsec.so.1
     librte_jobstats.so.1
     librte_kni.so.2
     librte_kvargs.so.1
     librte_latencystats.so.1
     librte_lpm.so.2
     librte_mbuf.so.5
     librte_member.so.1
     librte_mempool.so.5
     librte_meter.so.3
     librte_metrics.so.1
     librte_net.so.1
     librte_pci.so.1
     librte_pdump.so.3
     librte_pipeline.so.3
     librte_pmd_bnxt.so.2
     librte_pmd_bond.so.2
     librte_pmd_i40e.so.2
     librte_pmd_ixgbe.so.2
     librte_pmd_dpaa2_qdma.so.1
     librte_pmd_ring.so.2
     librte_pmd_softnic.so.1
     librte_pmd_vhost.so.2
     librte_port.so.3
     librte_power.so.1
     librte_rawdev.so.1
     librte_rcu.so.1
     librte_reorder.so.1
     librte_ring.so.2
     librte_sched.so.2
     librte_security.so.2
     librte_stack.so.1
     librte_table.so.3
     librte_timer.so.1
     librte_vhost.so.4


Known Issues
------------

.. This section should contain new known issues in this release. Sample format:

   * **Add title in present tense with full stop.**

     Add a short 1-2 sentence description of the known issue
     in the present tense. Add information on any known workarounds.

   This section is a comment. Do not overwrite or remove it.
   Also, make sure to start the actual text at the margin.
   =========================================================


Tested Platforms
----------------

.. This section should contain a list of platforms that were tested
   with this release.

   The format is:

   * <vendor> platform with <vendor> <type of devices> combinations

     * List of CPU
     * List of OS
     * List of devices
     * Other relevant details...

   This section is a comment. Do not overwrite or remove it.
   Also, make sure to start the actual text at the margin.
   =========================================================