net/iavf: enable AVX512 for Tx

[dpdk.git] / doc / guides / rel_notes / release_20_11.rst

diff --git a/doc/guides/rel_notes/release_20_11.rst b/doc/guides/rel_notes/release_20_11.rst
index 25ea3c2..5fe3dd0 100644 (file)
--- a/doc/guides/rel_notes/release_20_11.rst
+++ b/doc/guides/rel_notes/release_20_11.rst
@@ -77,6 +77,22 @@ New Features
   This API is specific to x86 and implemented as a stub for other
   architectures.
 
   This API is specific to x86 and implemented as a stub for other
   architectures.
 

+* **Added support for limiting maximum SIMD bitwidth.**
+
+  Added a new EAL config setting ``max_simd_bitwidth`` to limit the vector
+  path selection at runtime. This value can be set by apps using the
+  ``rte_vect_set_max_simd_bitwidth`` function, or by the user with EAL flag
+  ``--force-max-simd-bitwidth``.
+
+* **Added zero copy APIs for rte_ring.**
+
+  For rings with producer/consumer in ``RTE_RING_SYNC_ST``, ``RTE_RING_SYNC_MT_HTS``
+  modes, these APIs split enqueue/dequeue operation into three phases
+  (enqueue/dequeue start, copy data to/from ring, enqueue/dequeue finish).
+  Along with the advantages of the peek APIs, these provide the ability to
+  copy the data to the ring memory directly without the need for temporary
+  storage.
+

 * **Updated CRC modules of the net library.**
 
   * Added runtime selection of the optimal architecture-specific CRC path.
 * **Updated CRC modules of the net library.**
 
   * Added runtime selection of the optimal architecture-specific CRC path.


@@ -153,12 +169,37 @@ New Features
   Added the FEC PMD which provides functions for query FEC capabilities and
   current FEC mode from device. Also, PMD for configuring FEC mode is also provided.
 
   Added the FEC PMD which provides functions for query FEC capabilities and
   current FEC mode from device. Also, PMD for configuring FEC mode is also provided.
 

+* **Updated Intel iavf driver.**
+
+  * Added support of AVX512 instructions in Rx and Tx path.
+
+* **Updated Intel ice driver.**
+
+  * Used write combining stores.
+  * Added ACL filter support for Intel DCF.
+
+* **Updated Mellanox mlx5 driver.**
+
+  Updated Mellanox mlx5 driver with new features and improvements, including:
+
+  * Added support for matching on fragmented/non-fragmented IPv4/IPv6 packets.
+  * Updated the supported timeout for Age action to the maximal value supported
+    by rte_flow API.
+  * Added support of Age action query.
+

 * **Updated Solarflare network PMD.**
 
   Updated the Solarflare ``sfc_efx`` driver with changes including:
 
   * Added SR-IOV PF support
 * **Updated Solarflare network PMD.**
 
   Updated the Solarflare ``sfc_efx`` driver with changes including:
 
   * Added SR-IOV PF support

-  * Added Alveo SN1000 SmartNICs (EF100 architecture) support
+  * Added Alveo SN1000 SmartNICs (EF100 architecture) support including
+    flow API transfer rules for switch HW offload
+
+* **Added Wangxun txgbe PMD.**
+
+  Added a new PMD driver for Wangxun 10 Gigabit Ethernet NICs.
+
+  See the :doc:`../nics/txgbe` for more details.

 
 * **Updated Virtio driver.**
 
 
 * **Updated Virtio driver.**
 


@@ -174,10 +215,6 @@ New Features
 
   Updated the Intel ixgbe driver to use write combining stores.
 
 
   Updated the Intel ixgbe driver to use write combining stores.
 

-* **Updated Intel ice driver.**
-
-  Updated the Intel ice driver to use write combining stores.
-

 * **Updated Intel qat driver.**
 
   Updated the Intel qat driver to use write combining stores.
 * **Updated Intel qat driver.**
 
   Updated the Intel qat driver to use write combining stores.


@@ -279,6 +316,16 @@ New Features
   Added performance tuning arguments to allow tuning the scheduler for
   better throughtput in high core count use cases.
 
   Added performance tuning arguments to allow tuning the scheduler for
   better throughtput in high core count use cases.
 

+* **Added a new driver for the Intel Dynamic Load Balancer v1.0 device.**
+
+  Added the new ``dlb`` eventdev driver for the Intel DLB V1.0 device. See the
+  :doc:`../eventdevs/dlb` eventdev guide for more details on this new driver.
+
+* **Added a new driver for the Intel Dynamic Load Balancer v2.0 device.**
+
+  Added the new ``dlb2`` eventdev driver for the Intel DLB V2.0 device. See the
+  :doc:`../eventdevs/dlb2` eventdev guide for more details on this new driver.
+

 * **Updated ioat rawdev driver**
 
   The ioat rawdev driver has been updated and enhanced. Changes include:
 * **Updated ioat rawdev driver**
 
   The ioat rawdev driver has been updated and enhanced. Changes include:


@@ -318,6 +365,10 @@ New Features
   * Added new ``RTE_ACL_CLASSIFY_AVX512X32`` vector implementation,
     which can process up to 32 flows in parallel. Requires AVX512 support.
 
   * Added new ``RTE_ACL_CLASSIFY_AVX512X32`` vector implementation,
     which can process up to 32 flows in parallel. Requires AVX512 support.
 

+* **Added AVX512 lookup implementation for FIB.**
+
+  Added a AVX512 lookup functions implementation into FIB and FIB6 libraries.
+

 * **Added support to update subport bandwidth dynamically.**
 
    * Added new API ``rte_sched_port_subport_profile_add`` to add new
 * **Added support to update subport bandwidth dynamically.**
 
    * Added new API ``rte_sched_port_subport_profile_add`` to add new


@@ -338,6 +389,12 @@ New Features
   * Replaced ``--scalar`` command-line option with ``--alg=<value>``, to allow
     the user to select the desired classify method.
 
   * Replaced ``--scalar`` command-line option with ``--alg=<value>``, to allow
     the user to select the desired classify method.
 

+* **Updated vhost sample application.**
+
+  Added vhost asynchronous APIs support, which demonstrated how the application
+  leverage IOAT DMA channel with vhost asynchronous APIs.
+  See the :doc:`../sample_app_ug/vhost` for more details.
+

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


@@ -351,6 +408,10 @@ Removed Items
    Also, make sure to start the actual text at the margin.
    =======================================================
 
    Also, make sure to start the actual text at the margin.
    =======================================================
 

+* build: Support for the Make build system was removed for compiling DPDK,
+  Meson is now the primary build system.
+  Sample applications can still be built with Make standalone, using pkg-config.
+

 * vhost: Dequeue zero-copy support has been removed.
 
 * kernel: The module ``igb_uio`` has been moved to the git repository
 * vhost: Dequeue zero-copy support has been removed.
 
 * kernel: The module ``igb_uio`` has been moved to the git repository


@@ -358,6 +419,9 @@ Removed Items
 
 * Removed Python 2 support since it was EOL'd in January 2020.
 
 
 * Removed Python 2 support since it was EOL'd in January 2020.
 

+* Removed TEP termination sample application.
+
+

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


@@ -377,6 +441,13 @@ API Changes
   The information provided by these macros is available through standard
   compiler macros.
 
   The information provided by these macros is available through standard
   compiler macros.
 

+* eal: Replaced the function ``rte_get_master_lcore()`` to
+  ``rte_get_main_lcore()``. The old function is deprecated.
+
+  The iterator for worker lcores is also changed:
+  ``RTE_LCORE_FOREACH_SLAVE`` is replaced with
+  ``RTE_LCORE_FOREACH_WORKER``.
+

 * eal: The ``rte_logs`` struct and global symbol was made private
   and is no longer part of the API.
 
 * eal: The ``rte_logs`` struct and global symbol was made private
   and is no longer part of the API.
 


@@ -408,6 +479,16 @@ API Changes
   the structures ``rte_mbuf`` and ``rte_mbuf_ext_shared_info``.
   The field ``refcnt`` is remaining from the old unions.
 
   the structures ``rte_mbuf`` and ``rte_mbuf_ext_shared_info``.
   The field ``refcnt`` is remaining from the old unions.
 

+* mbuf: Removed the unioned fields ``userdata`` and ``udata64``
+  from the structure ``rte_mbuf``. It is replaced with dynamic fields.
+
+* mbuf: Removed the field ``seqn`` from the structure ``rte_mbuf``.
+  It is replaced with dynamic fields.
+
+* mbuf: Removed the field ``timestamp`` from the structure ``rte_mbuf``.
+  It is replaced with the dynamic field RTE_MBUF_DYNFIELD_TIMESTAMP_NAME
+  which was previously used only for Tx.
+

 * pci: Removed the ``rte_kernel_driver`` enum defined in rte_dev.h and
   replaced with a private enum in the PCI subsystem.
 
 * pci: Removed the ``rte_kernel_driver`` enum defined in rte_dev.h and
   replaced with a private enum in the PCI subsystem.
 


@@ -515,6 +596,12 @@ API Changes
 
 * bpf: ``RTE_BPF_XTYPE_NUM`` has been dropped from ``rte_bpf_xtype``.
 
 
 * bpf: ``RTE_BPF_XTYPE_NUM`` has been dropped from ``rte_bpf_xtype``.
 

+* gso: Changed ``rte_gso_segment`` behaviour and return value:
+
+  * ``pkt`` is not saved to ``pkts_out[0]`` if not GSOed.
+  * Return 0 instead of 1 for the above case.
+  * ``pkt`` is not freed, no matter whether it is GSOed, leaving to the caller.
+

 * acl: ``RTE_ACL_CLASSIFY_NUM`` enum value has been removed.
   This enum value was not used inside DPDK, while it prevented to add new
   classify algorithms without causing an ABI breakage.
 * acl: ``RTE_ACL_CLASSIFY_NUM`` enum value has been removed.
   This enum value was not used inside DPDK, while it prevented to add new
   classify algorithms without causing an ABI breakage.


@@ -588,6 +675,9 @@ ABI Changes
 
 * sched: Added new fields to ``struct rte_sched_subport_port_params``.
 
 
 * sched: Added new fields to ``struct rte_sched_subport_port_params``.
 

+* lpm: Removed fields other than ``tbl24`` and ``tbl8`` from the struct
+  ``rte_lpm``. The removed fields were made internal.
+

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