mem: fix anonymous mapping on Power9

[dpdk.git] / doc / guides / rel_notes / release_18_11.rst

diff --git a/doc/guides/rel_notes/release_18_11.rst b/doc/guides/rel_notes/release_18_11.rst
index d7655d3..a94e744 100644 (file)
--- a/doc/guides/rel_notes/release_18_11.rst
+++ b/doc/guides/rel_notes/release_18_11.rst
@@ -60,6 +60,25 @@ New Features
   memory that was created outside of DPDK's own page allocator, and using that
   memory natively with any other DPDK library or data structure.
 
   memory that was created outside of DPDK's own page allocator, and using that
   memory natively with any other DPDK library or data structure.
 

+* **Added check for ensuring allocated memory addressable by devices.**
+
+  Some devices can have addressing limitations so a new function,
+  ``rte_mem_check_dma_mask``, has been added for checking allocated memory is
+  not out of the device range. Because now memory can be dynamically allocated
+  after initialization, a dma mask is kept and any new allocated memory will be
+  checked out against that dma mask and rejected if out of range. If more than
+  one device has addressing limitations, the dma mask is the more restricted one.
+
+* **Updated the C11 memory model version of ring library.**
+
+  The latency is decreased for architectures using the C11 memory model
+  version of the ring library.
+
+  On Cavium ThunderX2 platform, the changes decreased latency by 27~29%
+  and 3~15% for MPMC and SPSC cases respectively (with 2 lcores). The
+  real improvements may vary with the number of contending lcores and
+  the size of ring.
+

 * **Added hot-unplug handle mechanism.**
 
   ``rte_dev_hotplug_handle_enable`` and ``rte_dev_hotplug_handle_disable`` are
 * **Added hot-unplug handle mechanism.**
 
   ``rte_dev_hotplug_handle_enable`` and ``rte_dev_hotplug_handle_disable`` are


@@ -201,6 +220,11 @@ New Features
   Added the new caam job ring driver for NXP platforms. See the
   "NXP CAAM JOB RING (caam_jr)" document for more details on this new driver.
 
   Added the new caam job ring driver for NXP platforms. See the
   "NXP CAAM JOB RING (caam_jr)" document for more details on this new driver.
 

+* **Added support for Dynamic Huffman Encoding to Intel QAT comp PMD.**
+
+  The Intel QuickAssist (QAT) compression PMD has been updated with support
+  for Dynamic Huffman Encoding for the Deflate algorithm.
+

 * **Added Event Ethernet Tx Adapter.**
 
   Added event ethernet Tx adapter library that  provides configuration and
 * **Added Event Ethernet Tx Adapter.**
 
   Added event ethernet Tx adapter library that  provides configuration and


@@ -249,6 +273,12 @@ New Features
   to containers and host applications that need to have their cores frequency
   controlled based on the rules contained in the policy.
 
   to containers and host applications that need to have their cores frequency
   controlled based on the rules contained in the policy.
 

+* **Added Telemetry API.**
+
+  Added the telemetry API which allows applications to transparently expose
+  their telemetry via a UNIX socket in JSON. The JSON can be consumed by any
+  Service Assurance agent, such as CollectD.
+

 * **Added ability to switch queue deferred start flag on testpmd app.**
 
   Added a console command to testpmd app, giving ability to switch
 * **Added ability to switch queue deferred start flag on testpmd app.**
 
   Added a console command to testpmd app, giving ability to switch


@@ -265,6 +295,20 @@ New Features
   this application doesn't need to launch dedicated worker threads for vhost
   enqueue/dequeue operations.
 
   this application doesn't need to launch dedicated worker threads for vhost
   enqueue/dequeue operations.
 

+* **Added cryptodev FIPS validation example application.**
+
+  Added an example application to parse and perform symmetric cryptography
+  computation to the NIST Cryptographic Algorithm Validation Program (CAVP)
+  test vectors.
+
+* **Allow unit test binary to take parameters from the environment**
+
+  The unit test "test", or "dpdk-test", binary is often called from scripts,
+  which can make passing additional parameters, such as a coremask, to it more
+  awkward. Support has been added to the application to allow it to take
+  additional command-line parameter values from the "DPDK_TEST_PARAMS"
+  environment variable to make this application easier to use.
+

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


@@ -300,6 +344,12 @@ API Changes
 * eal: The parameters of the function ``rte_devargs_remove()`` have changed
   from bus and device names to ``struct rte_devargs``.
 
 * eal: The parameters of the function ``rte_devargs_remove()`` have changed
   from bus and device names to ``struct rte_devargs``.
 

+* eal: The deprecated functions attach/detach were removed in 18.11.
+  ``rte_eal_dev_attach`` can be replaced by
+  ``rte_dev_probe`` or ``rte_eal_hotplug_add``.
+  ``rte_eal_dev_detach`` can be replaced by
+  ``rte_dev_remove`` or ``rte_eal_hotplug_remove``.
+

 * eal: The scope of ``rte_eal_hotplug_add()``/``rte_dev_probe()``
   and ``rte_eal_hotplug_remove()``/``rte_dev_remove()`` is extended.
   In multi-process model, they will guarantee that the device is
 * eal: The scope of ``rte_eal_hotplug_add()``/``rte_dev_probe()``
   and ``rte_eal_hotplug_remove()``/``rte_dev_remove()`` is extended.
   In multi-process model, they will guarantee that the device is


@@ -309,6 +359,17 @@ API Changes
   functions were deprecated since 17.05 and are replaced by
   ``rte_mbuf_raw_free()`` and ``rte_pktmbuf_prefree_seg()``.
 
   functions were deprecated since 17.05 and are replaced by
   ``rte_mbuf_raw_free()`` and ``rte_pktmbuf_prefree_seg()``.
 

+* ethdev: The deprecated functions attach/detach were removed in 18.11.
+  ``rte_eth_dev_attach`` can be replaced by ``RTE_ETH_FOREACH_MATCHING_DEV``
+  and ``rte_dev_probe`` or ``rte_eal_hotplug_add``.
+  ``rte_eth_dev_detach`` can be replaced by
+  ``rte_dev_remove`` or ``rte_eal_hotplug_remove``.
+
+* ethdev: A call to ``rte_eth_dev_release_port()`` has been added in
+  ``rte_eth_dev_close()``. As a consequence, a closed port is freed
+  and seen as invalid because of its state ``RTE_ETH_DEV_UNUSED``.
+  This new behaviour is enabled per driver for a migration period.
+

 * A new device flag, RTE_ETH_DEV_NOLIVE_MAC_ADDR, changes the order of
   actions inside rte_eth_dev_start regarding MAC set. Some NICs do not
   support MAC changes once the port has started and with this new device
 * A new device flag, RTE_ETH_DEV_NOLIVE_MAC_ADDR, changes the order of
   actions inside rte_eth_dev_start regarding MAC set. Some NICs do not
   support MAC changes once the port has started and with this new device


@@ -357,6 +418,9 @@ ABI Changes
          - structure ``rte_eal_memconfig`` has been extended to contain next
            socket ID for externally allocated segments
 
          - structure ``rte_eal_memconfig`` has been extended to contain next
            socket ID for externally allocated segments
 

+* eal: Added ``dma_maskbits`` to ``rte_mem_config`` for keeping more restricted
+       dma mask based on devices addressing limitations.
+

 * eal: The structure ``rte_device`` got a new field to reference a ``rte_bus``.
   It is changing the size of the ``struct rte_device`` and the inherited
   device structures of all buses.
 * eal: The structure ``rte_device`` got a new field to reference a ``rte_bus``.
   It is changing the size of the ``struct rte_device`` and the inherited
   device structures of all buses.


@@ -468,6 +532,8 @@ Known Issues
   driver; the Linux netvsc device must be brought up before the netvsc device is
   unbound and passed to the DPDK.
 
   driver; the Linux netvsc device must be brought up before the netvsc device is
   unbound and passed to the DPDK.
 

+* IBM Power8 is not supported by this release of DPDK. IBM Power9 is supported.
+

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