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 the FEC API, for a generic FEC query and config.**
67 Added the FEC API which provides functions for query FEC capabilities and
68 current FEC mode from device. Also, API for configuring FEC mode is also provided.
70 * **Updated Broadcom bnxt driver.**
72 Updated the Broadcom bnxt driver with new features and improvements, including:
74 * Added support for 200G PAM4 link speed.
75 * Added support for RSS hash level selection.
76 * Updated HWRM structures to 1.10.1.70 version.
78 * **Updated Cisco enic driver.**
80 * Added support for VF representors with single-queue Tx/Rx and flow API
81 * Added support for egress PORT_ID action
82 * Added support for non-zero priorities for group 0 flows
83 * Added support for VXLAN decap combined with VLAN pop
85 * **Added hns3 FEC PMD, for supporting query and config FEC mode.**
87 Added the FEC PMD which provides functions for query FEC capabilities and
88 current FEC mode from device. Also, PMD for configuring FEC mode is also provided.
90 * **Updated Solarflare network PMD.**
92 Updated the Solarflare ``sfc_efx`` driver with changes including:
94 * Added SR-IOV PF support
96 * **Updated Virtio driver.**
98 * Added support for Vhost-vDPA backend to Virtio-user PMD.
99 * Changed default link speed to unknown.
100 * Added support for 200G link speed.
102 * **Updated Intel i40e driver.**
104 Updated the Intel i40e driver to use write combining stores.
106 * **Updated Intel qat driver.**
108 Updated the Intel qat driver to use write combining stores.
110 * **Added Ice Lake (Gen4) support for Intel NTB.**
112 Added NTB device support (4th generation) for Intel Ice Lake platform.
114 * **Added UDP/IPv4 GRO support for VxLAN and non-VxLAN packets.**
116 For VxLAN packets, added inner UDP/IPv4 support.
117 For non-VxLAN packets, added UDP/IPv4 support.
119 * **Extended flow-perf application.**
121 * Started supporting user order instead of bit mask:
122 Now the user can create any structure of rte_flow
123 using flow performance application with any order,
124 moreover the app also now starts to support inner
125 items matching as well.
126 * Added header modify actions.
128 * Added raw encap/decap actions.
129 * Added VXLAN encap/decap actions.
130 * Added ICMP and ICMP6 matching items.
131 * Added option to set port mask for insertion/deletion:
133 where N represents the hexadecimal bitmask of ports used.
135 * **Updated ioat rawdev driver**
137 The ioat rawdev driver has been updated and enhanced. Changes include:
139 * Added support for Intel\ |reg| Data Streaming Accelerator hardware.
140 For more information, see https://01.org/blogs/2019/introducing-intel-data-streaming-accelerator
141 * Added support for the fill operation via the API ``rte_ioat_enqueue_fill()``,
142 where the hardware fills an area of memory with a repeating pattern.
143 * Added a per-device configuration flag to disable management
144 of user-provided completion handles.
145 * Renamed the ``rte_ioat_do_copies()`` API to ``rte_ioat_perform_ops()``,
146 and renamed the ``rte_ioat_completed_copies()`` API to ``rte_ioat_completed_ops()``
147 to better reflect the APIs' purposes, and remove the implication that
148 they are limited to copy operations only.
149 [Note: The old API is still provided but marked as deprecated in the code]
150 * Added a new API ``rte_ioat_fence()`` to add a fence between operations.
151 This API replaces the ``fence`` flag parameter in the ``rte_ioat_enqueue_copies()`` function,
152 and is clearer as there is no ambiguity as to whether the flag should be
153 set on the last operation before the fence or the first operation after it.
155 * **Updated the pipeline library for alignment with the P4 language.**
157 Added new Software Switch (SWX) pipeline type that provides more
158 flexibility through API and feature alignment with the P4 language.
160 * The packet headers, meta-data, actions, tables and pipelines are
161 dynamically defined instead of selected from pre-defined set.
162 * The actions and the pipeline are defined with instructions.
163 * Extern objects and functions can be plugged into the pipeline.
164 * Transaction-oriented table updates.
170 .. This section should contain removed items in this release. Sample format:
172 * Add a short 1-2 sentence description of the removed item
175 This section is a comment. Do not overwrite or remove it.
176 Also, make sure to start the actual text at the margin.
177 =======================================================
179 * vhost: Dequeue zero-copy support has been removed.
181 * kernel: The module ``igb_uio`` has been moved to the git repository
182 ``dpdk-kmods`` in a new directory ``linux/igb_uio``.
184 * Removed Python 2 support since it was EOL'd in January 2020.
189 .. This section should contain API changes. Sample format:
191 * sample: Add a short 1-2 sentence description of the API change
192 which was announced in the previous releases and made in this release.
193 Start with a scope label like "ethdev:".
194 Use fixed width quotes for ``function_names`` or ``struct_names``.
197 This section is a comment. Do not overwrite or remove it.
198 Also, make sure to start the actual text at the margin.
199 =======================================================
201 * build macros: The macros defining ``RTE_MACHINE_CPUFLAG_*`` are removed.
202 The information provided by these macros is available through standard
205 * eal: The ``rte_logs`` struct and global symbol was made private
206 and is no longer part of the API.
208 * eal: Made the ``rte_dev_event`` structure private to the EAL as no public API
211 * eal: ``rte_cio_rmb()`` and ``rte_cio_wmb()`` were deprecated since 20.08
212 and are removed in this release.
214 * mem: Removed the unioned field ``phys_addr`` from
215 the structures ``rte_memseg`` and ``rte_memzone``.
216 The field ``iova`` is remaining from the old unions.
218 * mempool: Removed the unioned fields ``phys_addr`` and ``physaddr`` from
219 the structures ``rte_mempool_memhdr`` and ``rte_mempool_objhdr``.
220 The field ``iova`` is remaining from the old unions.
221 The flag name ``MEMPOOL_F_NO_PHYS_CONTIG`` is removed,
222 while the aliased flag ``MEMPOOL_F_NO_IOVA_CONTIG`` is kept.
224 * mbuf: Removed the functions ``rte_mbuf_data_dma_addr*``
225 and the macros ``rte_pktmbuf_mtophys*``.
226 The same functionality is still available with the functions and macros
227 having ``iova`` in their names instead of ``dma_addr`` or ``mtophys``.
229 * mbuf: Removed the unioned field ``buf_physaddr`` from ``rte_mbuf``.
230 The field ``buf_iova`` is remaining from the old union.
232 * mbuf: Removed the unioned field ``refcnt_atomic`` from
233 the structures ``rte_mbuf`` and ``rte_mbuf_ext_shared_info``.
234 The field ``refcnt`` is remaining from the old unions.
236 * pci: Removed the ``rte_kernel_driver`` enum defined in rte_dev.h and
237 replaced with a private enum in the PCI subsystem.
239 * pci: Removed the PCI resources map API from the public API
240 (``pci_map_resource`` and ``pci_unmap_resource``) and moved it to the
241 PCI bus driver along with the PCI resources lists and associated structures
242 (``pci_map``, ``pci_msix_table``, ``mapped_pci_resource`` and
243 ``mapped_pci_res_list``).
245 * ethdev: Removed the ``kdrv`` field in the ethdev ``rte_eth_dev_data``
246 structure as it gave no useful abstracted information to the applications.
248 * ethdev: ``rte_eth_rx_descriptor_done()`` API has been deprecated.
250 * Renamed internal ethdev APIs:
252 * ``_rte_eth_dev_callback_process()`` -> ``rte_eth_dev_callback_process()``
253 * ``_rte_eth_dev_reset`` -> ``rte_eth_dev_internal_reset()``
255 * ethdev: Modified field type of ``base`` and ``nb_queue`` in struct
256 ``rte_eth_dcb_tc_queue_mapping`` from ``uint8_t`` to ``uint16_t``.
257 As the data of ``uint8_t`` will be truncated when queue number under
258 a TC is greater than 256.
260 * vhost: Moved vDPA APIs from experimental to stable.
262 * rawdev: Added a structure size parameter to the functions
263 ``rte_rawdev_queue_setup()``, ``rte_rawdev_queue_conf_get()``,
264 ``rte_rawdev_info_get()`` and ``rte_rawdev_configure()``,
265 allowing limited driver type-checking and ABI compatibility.
267 * rawdev: Changed the return type of the function ``rte_dev_info_get()``
268 and the function ``rte_rawdev_queue_conf_get()``
269 from ``void`` to ``int`` allowing the return of error codes from drivers.
271 * rawdev: The running of a drivers ``selftest()`` function can now be done
272 using the ``rawdev_autotest`` command in the ``dpdk-test`` binary. This
273 command now calls the self-test function for each rawdev found on the
274 system, and does not require a specific command per device type.
275 Following this change, the ``ioat_rawdev_autotest`` command has been
276 removed as no longer needed.
278 * raw/ioat: As noted above, the ``rte_ioat_do_copies()`` and
279 ``rte_ioat_completed_copies()`` functions have been renamed to
280 ``rte_ioat_perform_ops()`` and ``rte_ioat_completed_ops()`` respectively.
282 * stack: the experimental tag has been dropped from the stack library, and its
283 interfaces are considered stable as of DPDK 20.11.
285 * bpf: ``RTE_BPF_XTYPE_NUM`` has been dropped from ``rte_bpf_xtype``.
291 .. This section should contain ABI changes. Sample format:
293 * sample: Add a short 1-2 sentence description of the ABI change
294 which was announced in the previous releases and made in this release.
295 Start with a scope label like "ethdev:".
296 Use fixed width quotes for ``function_names`` or ``struct_names``.
299 This section is a comment. Do not overwrite or remove it.
300 Also, make sure to start the actual text at the margin.
301 =======================================================
305 * Following device operation function pointers moved
306 from ``struct eth_dev_ops`` to ``struct rte_eth_dev``:
308 * ``eth_rx_queue_count_t rx_queue_count;``
309 * ``eth_rx_descriptor_done_t rx_descriptor_done;``
310 * ``eth_rx_descriptor_status_t rx_descriptor_status;``
311 * ``eth_tx_descriptor_status_t tx_descriptor_status;``
313 * ``struct eth_dev_ops`` is no more accessible by applications,
314 which was already internal data structure.
316 * ``ethdev`` internal functions are marked with ``__rte_internal`` tag.
322 .. This section should contain new known issues in this release. Sample format:
324 * **Add title in present tense with full stop.**
326 Add a short 1-2 sentence description of the known issue
327 in the present tense. Add information on any known workarounds.
329 This section is a comment. Do not overwrite or remove it.
330 Also, make sure to start the actual text at the margin.
331 =======================================================
337 .. This section should contain a list of platforms that were tested
342 * <vendor> platform with <vendor> <type of devices> combinations
347 * Other relevant details...
349 This section is a comment. Do not overwrite or remove it.
350 Also, make sure to start the actual text at the margin.
351 =======================================================