1 .. SPDX-License-Identifier: BSD-3-Clause
2 Copyright 2020 The DPDK contributors
4 .. include:: <isonum.txt>
9 .. **Read this first.**
11 The text in the sections below explains how to update the release notes.
13 Use proper spelling, capitalization and punctuation in all sections.
15 Variable and config names should be quoted as fixed width text:
18 Build the docs and view the output file to ensure the changes are correct::
21 xdg-open build/doc/html/guides/rel_notes/release_20_11.html
27 .. This section should contain new features added in this release.
30 * **Add a title in the past tense with a full stop.**
32 Add a short 1-2 sentence description in the past tense.
33 The description should be enough to allow someone scanning
34 the release notes to understand the new feature.
36 If the feature adds a lot of sub-features you can use a bullet list
39 * Added feature foo to do something.
40 * Enhanced feature bar to do something else.
42 Refer to the previous release notes for examples.
44 Suggested order in release notes items:
45 * Core libs (EAL, mempool, ring, mbuf, buses)
46 * Device abstraction libs and PMDs
48 - cryptodev (lib, PMDs)
49 - eventdev (lib, PMDs)
52 * Apps, Examples, Tools (if significant)
54 This section is a comment. Do not overwrite or remove it.
55 Also, make sure to start the actual text at the margin.
56 =======================================================
58 * **Added write combining store APIs.**
60 Added ``rte_write32_wc`` and ``rte_write32_wc_relaxed`` APIs
61 that enable write combining stores (depending on architecture).
62 The functions are provided as a generic stubs and
63 x86 specific implementation.
65 * **Added prefetch with intention to write APIs.**
67 Added new prefetch function variants e.g. ``rte_prefetch0_write``,
68 which allow the programmer to prefetch a cache line and also indicate
69 the intention to write.
71 * **Added the rte_cldemote API.**
73 Added a hardware hint CLDEMOTE, which is similar to prefetch in reverse.
74 CLDEMOTE moves the cache line to the more remote cache, where it expects
75 sharing to be efficient. Moving the cache line to a level more distant from
76 the processor helps to accelerate core-to-core communication.
77 This API is specific to x86 and implemented as a stub for other
80 * **Updated CRC modules of the net library.**
82 * Added runtime selection of the optimal architecture-specific CRC path.
83 * Added optimized implementations of CRC32-Ethernet and CRC16-CCITT
84 using the AVX512 and VPCLMULQDQ instruction sets.
86 * **Added the FEC API, for a generic FEC query and config.**
88 Added the FEC API which provides functions for query FEC capabilities and
89 current FEC mode from device. Also, API for configuring FEC mode is also provided.
91 * **Added thread safety to rte_flow functions.**
93 Added ``RTE_ETH_DEV_FLOW_OPS_THREAD_SAFE`` device flag to indicate
94 whether PMD supports thread safe operations. If PMD doesn't set the flag,
95 rte_flow API level functions will protect the flow operations with mutex.
97 * **Added flow-based traffic sampling support.**
99 Added new action: ``RTE_FLOW_ACTION_TYPE_SAMPLE`` to duplicate the matching
100 packets with specified ratio, and apply with own set of actions with a fate
101 action. When the ratio is set to 1 then the packets will be 100% mirrored.
103 * **Updated Broadcom bnxt driver.**
105 Updated the Broadcom bnxt driver with new features and improvements, including:
107 * Added support for 200G PAM4 link speed.
108 * Added support for RSS hash level selection.
109 * Updated HWRM structures to 1.10.1.70 version.
110 * Added TRUFLOW support for Stingray devices.
112 * **Updated Cisco enic driver.**
114 * Added support for VF representors with single-queue Tx/Rx and flow API
115 * Added support for egress PORT_ID action
116 * Added support for non-zero priorities for group 0 flows
117 * Added support for VXLAN decap combined with VLAN pop
119 * **Added hns3 FEC PMD, for supporting query and config FEC mode.**
121 Added the FEC PMD which provides functions for query FEC capabilities and
122 current FEC mode from device. Also, PMD for configuring FEC mode is also provided.
124 * **Updated Solarflare network PMD.**
126 Updated the Solarflare ``sfc_efx`` driver with changes including:
128 * Added SR-IOV PF support
130 * **Updated Virtio driver.**
132 * Added support for Vhost-vDPA backend to Virtio-user PMD.
133 * Changed default link speed to unknown.
134 * Added support for 200G link speed.
136 * **Updated Intel i40e driver.**
138 Updated the Intel i40e driver to use write combining stores.
140 * **Updated Intel ixgbe driver.**
142 Updated the Intel ixgbe driver to use write combining stores.
144 * **Updated Intel ice driver.**
146 Updated the Intel ice driver to use write combining stores.
148 * **Updated Intel qat driver.**
150 Updated the Intel qat driver to use write combining stores.
152 * **Updated Memif PMD.**
154 * Added support for abstract socket address.
155 * Changed default socket address type to abstract.
157 * **Added Ice Lake (Gen4) support for Intel NTB.**
159 Added NTB device support (4th generation) for Intel Ice Lake platform.
161 * **Added UDP/IPv4 GRO support for VxLAN and non-VxLAN packets.**
163 For VxLAN packets, added inner UDP/IPv4 support.
164 For non-VxLAN packets, added UDP/IPv4 support.
166 * **Extended flow-perf application.**
168 * Started supporting user order instead of bit mask:
169 Now the user can create any structure of rte_flow
170 using flow performance application with any order,
171 moreover the app also now starts to support inner
172 items matching as well.
173 * Added header modify actions.
175 * Added raw encap/decap actions.
176 * Added VXLAN encap/decap actions.
177 * Added ICMP(code/type/identifier/sequence number) and ICMP6(code/type) matching items.
178 * Added option to set port mask for insertion/deletion:
180 where N represents the hexadecimal bitmask of ports used.
182 * **Added raw data-path APIs for cryptodev library.**
184 Cryptodev is added with raw data-path APIs to accelerate external
185 libraries or applications which need to avail fast cryptodev
186 enqueue/dequeue operations but does not necessarily depends on
187 mbufs and cryptodev operation mempools.
189 * **Updated the aesni_mb crypto PMD.**
191 * Added support for AES-ECB 128, 192 and 256.
192 * Added support for ZUC-EEA3/EIA3 algorithms.
193 * Added support for SNOW3G-UEA2/UIA2 algorithms.
194 * Added support for KASUMI-F8/F9 algorithms.
195 * Added support for Chacha20-Poly1305.
196 * Added support for AES-256 CCM algorithm.
198 * **Updated the aesni_gcm crypto PMD.**
200 * Added SGL support for AES-GMAC.
202 * **Added Broadcom BCMFS symmetric crypto PMD.**
204 Added a symmetric crypto PMD for Broadcom FlexSparc crypto units.
205 See :doc:`../cryptodevs/bcmfs` guide for more details on this new PMD.
207 * **Updated DPAA2_SEC crypto PMD.**
209 * Added DES-CBC support for cipher_only, chain and ipsec protocol.
210 * Added support for non-HMAC auth algorithms
211 (MD5, SHA1, SHA224, SHA256, SHA384, SHA512).
213 * **Updated Marvell NITROX symmetric crypto PMD.**
215 * Added AES-GCM support.
216 * Added cipher only offload support.
218 * **Updated the OCTEON TX2 crypto PMD.**
220 * Updated the OCTEON TX2 crypto PMD lookaside protocol offload for IPsec with
223 * **Updated QAT crypto PMD.**
225 * Added Raw Data-path APIs support.
227 * **Added Intel ACC100 bbdev PMD.**
229 Added a new ``acc100`` bbdev driver for the Intel\ |reg| ACC100 accelerator
230 also known as Mount Bryce. See the
231 :doc:`../bbdevs/acc100` BBDEV guide for more details on this new driver.
233 * **Updated rte_security library to support SDAP.**
235 ``rte_security_pdcp_xform`` in ``rte_security`` lib is updated to enable
236 5G NR processing of SDAP header in PMDs.
238 * **Added Marvell OCTEON TX2 regex PMD.**
240 Added a new PMD driver for hardware regex offload block for OCTEON TX2 SoC.
242 See the :doc:`../regexdevs/octeontx2` for more details.
244 * **Updated Software Eventdev driver.**
246 Added performance tuning arguments to allow tuning the scheduler for
247 better throughtput in high core count use cases.
249 * **Updated ioat rawdev driver**
251 The ioat rawdev driver has been updated and enhanced. Changes include:
253 * Added support for Intel\ |reg| Data Streaming Accelerator hardware.
254 For more information, see https://01.org/blogs/2019/introducing-intel-data-streaming-accelerator
255 * Added support for the fill operation via the API ``rte_ioat_enqueue_fill()``,
256 where the hardware fills an area of memory with a repeating pattern.
257 * Added a per-device configuration flag to disable management
258 of user-provided completion handles.
259 * Renamed the ``rte_ioat_do_copies()`` API to ``rte_ioat_perform_ops()``,
260 and renamed the ``rte_ioat_completed_copies()`` API to ``rte_ioat_completed_ops()``
261 to better reflect the APIs' purposes, and remove the implication that
262 they are limited to copy operations only.
263 [Note: The old API is still provided but marked as deprecated in the code]
264 * Added a new API ``rte_ioat_fence()`` to add a fence between operations.
265 This API replaces the ``fence`` flag parameter in the ``rte_ioat_enqueue_copies()`` function,
266 and is clearer as there is no ambiguity as to whether the flag should be
267 set on the last operation before the fence or the first operation after it.
269 * **Updated the pipeline library for alignment with the P4 language.**
271 Added new Software Switch (SWX) pipeline type that provides more
272 flexibility through API and feature alignment with the P4 language.
274 * The packet headers, meta-data, actions, tables and pipelines are
275 dynamically defined instead of selected from pre-defined set.
276 * The actions and the pipeline are defined with instructions.
277 * Extern objects and functions can be plugged into the pipeline.
278 * Transaction-oriented table updates.
280 * **Add new AVX512 specific classify algorithms for ACL library.**
282 * Added new ``RTE_ACL_CLASSIFY_AVX512X16`` vector implementation,
283 which can process up to 16 flows in parallel. Requires AVX512 support.
285 * Added new ``RTE_ACL_CLASSIFY_AVX512X32`` vector implementation,
286 which can process up to 32 flows in parallel. Requires AVX512 support.
288 * **Added support to update subport bandwidth dynamically.**
290 * Added new API ``rte_sched_port_subport_profile_add`` to add new
291 subport bandwidth profile to subport porfile table at runtime.
293 * Added support to update subport rate dynamically.
295 * **Updated FIPS validation sample application.**
297 * Added scatter gather support.
298 * Added NIST GCMVS complaint GMAC test method support.
304 .. This section should contain removed items in this release. Sample format:
306 * Add a short 1-2 sentence description of the removed item
309 This section is a comment. Do not overwrite or remove it.
310 Also, make sure to start the actual text at the margin.
311 =======================================================
313 * vhost: Dequeue zero-copy support has been removed.
315 * kernel: The module ``igb_uio`` has been moved to the git repository
316 ``dpdk-kmods`` in a new directory ``linux/igb_uio``.
318 * Removed Python 2 support since it was EOL'd in January 2020.
323 .. This section should contain API changes. Sample format:
325 * sample: Add a short 1-2 sentence description of the API change
326 which was announced in the previous releases and made in this release.
327 Start with a scope label like "ethdev:".
328 Use fixed width quotes for ``function_names`` or ``struct_names``.
331 This section is a comment. Do not overwrite or remove it.
332 Also, make sure to start the actual text at the margin.
333 =======================================================
335 * build macros: The macros defining ``RTE_MACHINE_CPUFLAG_*`` are removed.
336 The information provided by these macros is available through standard
339 * eal: The ``rte_logs`` struct and global symbol was made private
340 and is no longer part of the API.
342 * eal: Made the ``rte_dev_event`` structure private to the EAL as no public API
345 * eal: ``rte_cio_rmb()`` and ``rte_cio_wmb()`` were deprecated since 20.08
346 and are removed in this release.
348 * mem: Removed the unioned field ``phys_addr`` from
349 the structures ``rte_memseg`` and ``rte_memzone``.
350 The field ``iova`` is remaining from the old unions.
352 * mempool: Removed the unioned fields ``phys_addr`` and ``physaddr`` from
353 the structures ``rte_mempool_memhdr`` and ``rte_mempool_objhdr``.
354 The field ``iova`` is remaining from the old unions.
355 The flag name ``MEMPOOL_F_NO_PHYS_CONTIG`` is removed,
356 while the aliased flag ``MEMPOOL_F_NO_IOVA_CONTIG`` is kept.
358 * mbuf: Removed the functions ``rte_mbuf_data_dma_addr*``
359 and the macros ``rte_pktmbuf_mtophys*``.
360 The same functionality is still available with the functions and macros
361 having ``iova`` in their names instead of ``dma_addr`` or ``mtophys``.
363 * mbuf: Removed the unioned field ``buf_physaddr`` from ``rte_mbuf``.
364 The field ``buf_iova`` is remaining from the old union.
366 * mbuf: Removed the unioned field ``refcnt_atomic`` from
367 the structures ``rte_mbuf`` and ``rte_mbuf_ext_shared_info``.
368 The field ``refcnt`` is remaining from the old unions.
370 * pci: Removed the ``rte_kernel_driver`` enum defined in rte_dev.h and
371 replaced with a private enum in the PCI subsystem.
373 * pci: Removed the PCI resources map API from the public API
374 (``pci_map_resource`` and ``pci_unmap_resource``) and moved it to the
375 PCI bus driver along with the PCI resources lists and associated structures
376 (``pci_map``, ``pci_msix_table``, ``mapped_pci_resource`` and
377 ``mapped_pci_res_list``).
379 * ethdev: Removed the ``kdrv`` field in the ethdev ``rte_eth_dev_data``
380 structure as it gave no useful abstracted information to the applications.
382 * ethdev: ``rte_eth_rx_descriptor_done()`` API has been deprecated.
384 * ethdev: Renamed basic statistics per queue. An underscore is inserted
385 between the queue number and the rest of the xstat name:
387 * ``rx_qN*`` -> ``rx_qN_*``
388 * ``tx_qN*`` -> ``tx_qN_*``
390 * ethdev: Added capability to query age flow action.
392 * ethdev: Renamed internal functions:
394 * ``_rte_eth_dev_callback_process()`` -> ``rte_eth_dev_callback_process()``
395 * ``_rte_eth_dev_reset`` -> ``rte_eth_dev_internal_reset()``
397 * ethdev: Modified field type of ``base`` and ``nb_queue`` in struct
398 ``rte_eth_dcb_tc_queue_mapping`` from ``uint8_t`` to ``uint16_t``.
399 As the data of ``uint8_t`` will be truncated when queue number under
400 a TC is greater than 256.
402 * vhost: Moved vDPA APIs from experimental to stable.
404 * vhost: Add a new function ``rte_vhost_crypto_driver_start`` to be called
405 instead of ``rte_vhost_driver_start`` by crypto applications.
407 * cryptodev: The structure ``rte_crypto_sym_vec`` is updated to support both
408 cpu_crypto synchrounous operation and asynchronous raw data-path APIs.
410 * cryptodev: ``RTE_CRYPTO_AEAD_LIST_END`` from ``enum rte_crypto_aead_algorithm``,
411 ``RTE_CRYPTO_CIPHER_LIST_END`` from ``enum rte_crypto_cipher_algorithm`` and
412 ``RTE_CRYPTO_AUTH_LIST_END`` from ``enum rte_crypto_auth_algorithm``
413 are removed to avoid future ABI breakage while adding new algorithms.
415 * scheduler: Renamed functions ``rte_cryptodev_scheduler_slave_attach``,
416 ``rte_cryptodev_scheduler_slave_detach`` and
417 ``rte_cryptodev_scheduler_slaves_get`` to
418 ``rte_cryptodev_scheduler_worker_attach``,
419 ``rte_cryptodev_scheduler_worker_detach`` and
420 ``rte_cryptodev_scheduler_workers_get`` accordingly.
422 * scheduler: Renamed the configuration value
423 ``RTE_CRYPTODEV_SCHEDULER_MAX_NB_SLAVES`` to
424 ``RTE_CRYPTODEV_SCHEDULER_MAX_NB_WORKERS``.
426 * security: ``hfn_ovrd`` field in ``rte_security_pdcp_xform`` is changed from
427 ``uint32_t`` to ``uint8_t`` so that a new field ``sdap_enabled`` can be added
430 * ipsec: ``RTE_SATP_LOG2_NUM`` has been dropped from ``enum`` and
431 subsequently moved ``rte_ipsec`` lib from experimental to stable.
433 * baseband/fpga_lte_fec: Renamed function ``fpga_lte_fec_configure`` to
434 ``rte_fpga_lte_fec_configure`` and structure ``fpga_lte_fec_conf`` to
435 ``rte_fpga_lte_fec_conf``.
437 * baseband/fpga_5gnr_fec: Renamed function ``fpga_5gnr_fec_configure`` to
438 ``rte_fpga_5gnr_fec_configure`` and structure ``fpga_5gnr_fec_conf`` to
439 ``rte_fpga_5gnr_fec_conf``.
441 * rawdev: Added a structure size parameter to the functions
442 ``rte_rawdev_queue_setup()``, ``rte_rawdev_queue_conf_get()``,
443 ``rte_rawdev_info_get()`` and ``rte_rawdev_configure()``,
444 allowing limited driver type-checking and ABI compatibility.
446 * rawdev: Changed the return type of the function ``rte_dev_info_get()``
447 and the function ``rte_rawdev_queue_conf_get()``
448 from ``void`` to ``int`` allowing the return of error codes from drivers.
450 * rawdev: The running of a drivers ``selftest()`` function can now be done
451 using the ``rawdev_autotest`` command in the ``dpdk-test`` binary. This
452 command now calls the self-test function for each rawdev found on the
453 system, and does not require a specific command per device type.
454 Following this change, the ``ioat_rawdev_autotest`` command has been
455 removed as no longer needed.
457 * raw/ioat: As noted above, the ``rte_ioat_do_copies()`` and
458 ``rte_ioat_completed_copies()`` functions have been renamed to
459 ``rte_ioat_perform_ops()`` and ``rte_ioat_completed_ops()`` respectively.
461 * stack: the experimental tag has been dropped from the stack library, and its
462 interfaces are considered stable as of DPDK 20.11.
464 * bpf: ``RTE_BPF_XTYPE_NUM`` has been dropped from ``rte_bpf_xtype``.
466 * acl: ``RTE_ACL_CLASSIFY_NUM`` enum value has been removed.
467 This enum value was not used inside DPDK, while it prevented to add new
468 classify algorithms without causing an ABI breakage.
470 * sched: Added ``subport_profile_id`` as argument
471 to function ``rte_sched_subport_config``.
473 * sched: Removed ``tb_rate``, ``tc_rate``, ``tc_period`` and ``tb_size``
474 from ``struct rte_sched_subport_params``.
480 .. This section should contain ABI changes. Sample format:
482 * sample: Add a short 1-2 sentence description of the ABI change
483 which was announced in the previous releases and made in this release.
484 Start with a scope label like "ethdev:".
485 Use fixed width quotes for ``function_names`` or ``struct_names``.
488 This section is a comment. Do not overwrite or remove it.
489 Also, make sure to start the actual text at the margin.
490 =======================================================
492 * eal: Removed the not implemented function ``rte_dump_registers()``.
496 * Following device operation function pointers moved
497 from ``struct eth_dev_ops`` to ``struct rte_eth_dev``:
499 * ``eth_rx_queue_count_t rx_queue_count;``
500 * ``eth_rx_descriptor_done_t rx_descriptor_done;``
501 * ``eth_rx_descriptor_status_t rx_descriptor_status;``
502 * ``eth_tx_descriptor_status_t tx_descriptor_status;``
504 * ``struct eth_dev_ops`` is no more accessible by applications,
505 which was already internal data structure.
507 * ``ethdev`` internal functions are marked with ``__rte_internal`` tag.
509 * eventdev: Following structures are modified to support DLB/DLB2 PMDs
510 and future extensions:
512 * ``rte_event_dev_info``
513 * ``rte_event_dev_config``
514 * ``rte_event_port_conf``
516 * sched: Added new fields to ``struct rte_sched_subport_port_params``.
522 .. This section should contain new known issues in this release. Sample format:
524 * **Add title in present tense with full stop.**
526 Add a short 1-2 sentence description of the known issue
527 in the present tense. Add information on any known workarounds.
529 This section is a comment. Do not overwrite or remove it.
530 Also, make sure to start the actual text at the margin.
531 =======================================================
537 .. This section should contain a list of platforms that were tested
542 * <vendor> platform with <vendor> <type of devices> combinations
547 * Other relevant details...
549 This section is a comment. Do not overwrite or remove it.
550 Also, make sure to start the actual text at the margin.
551 =======================================================