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 ixgbe driver.**
108 Updated the Intel ixgbe driver to use write combining stores.
110 * **Updated Intel qat driver.**
112 Updated the Intel qat driver to use write combining stores.
114 * **Added Ice Lake (Gen4) support for Intel NTB.**
116 Added NTB device support (4th generation) for Intel Ice Lake platform.
118 * **Added UDP/IPv4 GRO support for VxLAN and non-VxLAN packets.**
120 For VxLAN packets, added inner UDP/IPv4 support.
121 For non-VxLAN packets, added UDP/IPv4 support.
123 * **Extended flow-perf application.**
125 * Started supporting user order instead of bit mask:
126 Now the user can create any structure of rte_flow
127 using flow performance application with any order,
128 moreover the app also now starts to support inner
129 items matching as well.
130 * Added header modify actions.
132 * Added raw encap/decap actions.
133 * Added VXLAN encap/decap actions.
134 * Added ICMP and ICMP6 matching items.
135 * Added option to set port mask for insertion/deletion:
137 where N represents the hexadecimal bitmask of ports used.
139 * **Updated ioat rawdev driver**
141 The ioat rawdev driver has been updated and enhanced. Changes include:
143 * Added support for Intel\ |reg| Data Streaming Accelerator hardware.
144 For more information, see https://01.org/blogs/2019/introducing-intel-data-streaming-accelerator
145 * Added support for the fill operation via the API ``rte_ioat_enqueue_fill()``,
146 where the hardware fills an area of memory with a repeating pattern.
147 * Added a per-device configuration flag to disable management
148 of user-provided completion handles.
149 * Renamed the ``rte_ioat_do_copies()`` API to ``rte_ioat_perform_ops()``,
150 and renamed the ``rte_ioat_completed_copies()`` API to ``rte_ioat_completed_ops()``
151 to better reflect the APIs' purposes, and remove the implication that
152 they are limited to copy operations only.
153 [Note: The old API is still provided but marked as deprecated in the code]
154 * Added a new API ``rte_ioat_fence()`` to add a fence between operations.
155 This API replaces the ``fence`` flag parameter in the ``rte_ioat_enqueue_copies()`` function,
156 and is clearer as there is no ambiguity as to whether the flag should be
157 set on the last operation before the fence or the first operation after it.
159 * **Updated the pipeline library for alignment with the P4 language.**
161 Added new Software Switch (SWX) pipeline type that provides more
162 flexibility through API and feature alignment with the P4 language.
164 * The packet headers, meta-data, actions, tables and pipelines are
165 dynamically defined instead of selected from pre-defined set.
166 * The actions and the pipeline are defined with instructions.
167 * Extern objects and functions can be plugged into the pipeline.
168 * Transaction-oriented table updates.
174 .. This section should contain removed items in this release. Sample format:
176 * Add a short 1-2 sentence description of the removed item
179 This section is a comment. Do not overwrite or remove it.
180 Also, make sure to start the actual text at the margin.
181 =======================================================
183 * vhost: Dequeue zero-copy support has been removed.
185 * kernel: The module ``igb_uio`` has been moved to the git repository
186 ``dpdk-kmods`` in a new directory ``linux/igb_uio``.
188 * Removed Python 2 support since it was EOL'd in January 2020.
193 .. This section should contain API changes. Sample format:
195 * sample: Add a short 1-2 sentence description of the API change
196 which was announced in the previous releases and made in this release.
197 Start with a scope label like "ethdev:".
198 Use fixed width quotes for ``function_names`` or ``struct_names``.
201 This section is a comment. Do not overwrite or remove it.
202 Also, make sure to start the actual text at the margin.
203 =======================================================
205 * build macros: The macros defining ``RTE_MACHINE_CPUFLAG_*`` are removed.
206 The information provided by these macros is available through standard
209 * eal: The ``rte_logs`` struct and global symbol was made private
210 and is no longer part of the API.
212 * eal: Made the ``rte_dev_event`` structure private to the EAL as no public API
215 * eal: ``rte_cio_rmb()`` and ``rte_cio_wmb()`` were deprecated since 20.08
216 and are removed in this release.
218 * mem: Removed the unioned field ``phys_addr`` from
219 the structures ``rte_memseg`` and ``rte_memzone``.
220 The field ``iova`` is remaining from the old unions.
222 * mempool: Removed the unioned fields ``phys_addr`` and ``physaddr`` from
223 the structures ``rte_mempool_memhdr`` and ``rte_mempool_objhdr``.
224 The field ``iova`` is remaining from the old unions.
225 The flag name ``MEMPOOL_F_NO_PHYS_CONTIG`` is removed,
226 while the aliased flag ``MEMPOOL_F_NO_IOVA_CONTIG`` is kept.
228 * mbuf: Removed the functions ``rte_mbuf_data_dma_addr*``
229 and the macros ``rte_pktmbuf_mtophys*``.
230 The same functionality is still available with the functions and macros
231 having ``iova`` in their names instead of ``dma_addr`` or ``mtophys``.
233 * mbuf: Removed the unioned field ``buf_physaddr`` from ``rte_mbuf``.
234 The field ``buf_iova`` is remaining from the old union.
236 * mbuf: Removed the unioned field ``refcnt_atomic`` from
237 the structures ``rte_mbuf`` and ``rte_mbuf_ext_shared_info``.
238 The field ``refcnt`` is remaining from the old unions.
240 * pci: Removed the ``rte_kernel_driver`` enum defined in rte_dev.h and
241 replaced with a private enum in the PCI subsystem.
243 * pci: Removed the PCI resources map API from the public API
244 (``pci_map_resource`` and ``pci_unmap_resource``) and moved it to the
245 PCI bus driver along with the PCI resources lists and associated structures
246 (``pci_map``, ``pci_msix_table``, ``mapped_pci_resource`` and
247 ``mapped_pci_res_list``).
249 * ethdev: Removed the ``kdrv`` field in the ethdev ``rte_eth_dev_data``
250 structure as it gave no useful abstracted information to the applications.
252 * ethdev: ``rte_eth_rx_descriptor_done()`` API has been deprecated.
254 * Renamed internal ethdev APIs:
256 * ``_rte_eth_dev_callback_process()`` -> ``rte_eth_dev_callback_process()``
257 * ``_rte_eth_dev_reset`` -> ``rte_eth_dev_internal_reset()``
259 * ethdev: Modified field type of ``base`` and ``nb_queue`` in struct
260 ``rte_eth_dcb_tc_queue_mapping`` from ``uint8_t`` to ``uint16_t``.
261 As the data of ``uint8_t`` will be truncated when queue number under
262 a TC is greater than 256.
264 * vhost: Moved vDPA APIs from experimental to stable.
266 * rawdev: Added a structure size parameter to the functions
267 ``rte_rawdev_queue_setup()``, ``rte_rawdev_queue_conf_get()``,
268 ``rte_rawdev_info_get()`` and ``rte_rawdev_configure()``,
269 allowing limited driver type-checking and ABI compatibility.
271 * rawdev: Changed the return type of the function ``rte_dev_info_get()``
272 and the function ``rte_rawdev_queue_conf_get()``
273 from ``void`` to ``int`` allowing the return of error codes from drivers.
275 * rawdev: The running of a drivers ``selftest()`` function can now be done
276 using the ``rawdev_autotest`` command in the ``dpdk-test`` binary. This
277 command now calls the self-test function for each rawdev found on the
278 system, and does not require a specific command per device type.
279 Following this change, the ``ioat_rawdev_autotest`` command has been
280 removed as no longer needed.
282 * raw/ioat: As noted above, the ``rte_ioat_do_copies()`` and
283 ``rte_ioat_completed_copies()`` functions have been renamed to
284 ``rte_ioat_perform_ops()`` and ``rte_ioat_completed_ops()`` respectively.
286 * stack: the experimental tag has been dropped from the stack library, and its
287 interfaces are considered stable as of DPDK 20.11.
289 * bpf: ``RTE_BPF_XTYPE_NUM`` has been dropped from ``rte_bpf_xtype``.
295 .. This section should contain ABI changes. Sample format:
297 * sample: Add a short 1-2 sentence description of the ABI change
298 which was announced in the previous releases and made in this release.
299 Start with a scope label like "ethdev:".
300 Use fixed width quotes for ``function_names`` or ``struct_names``.
303 This section is a comment. Do not overwrite or remove it.
304 Also, make sure to start the actual text at the margin.
305 =======================================================
309 * Following device operation function pointers moved
310 from ``struct eth_dev_ops`` to ``struct rte_eth_dev``:
312 * ``eth_rx_queue_count_t rx_queue_count;``
313 * ``eth_rx_descriptor_done_t rx_descriptor_done;``
314 * ``eth_rx_descriptor_status_t rx_descriptor_status;``
315 * ``eth_tx_descriptor_status_t tx_descriptor_status;``
317 * ``struct eth_dev_ops`` is no more accessible by applications,
318 which was already internal data structure.
320 * ``ethdev`` internal functions are marked with ``__rte_internal`` tag.
326 .. This section should contain new known issues in this release. Sample format:
328 * **Add title in present tense with full stop.**
330 Add a short 1-2 sentence description of the known issue
331 in the present tense. Add information on any known workarounds.
333 This section is a comment. Do not overwrite or remove it.
334 Also, make sure to start the actual text at the margin.
335 =======================================================
341 .. This section should contain a list of platforms that were tested
346 * <vendor> platform with <vendor> <type of devices> combinations
351 * Other relevant details...
353 This section is a comment. Do not overwrite or remove it.
354 Also, make sure to start the actual text at the margin.
355 =======================================================