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 * **Updated Broadcom bnxt driver.**
60 Updated the Broadcom bnxt driver with new features and improvements, including:
62 * Added support for 200G PAM4 link speed.
63 * Added support for RSS hash level selection.
65 * **Updated Cisco enic driver.**
67 * Added support for VF representors with single-queue Tx/Rx and flow API
68 * Added support for egress PORT_ID action
69 * Added support for non-zero priorities for group 0 flows
70 * Added support for VXLAN decap combined with VLAN pop
72 * **Updated Solarflare network PMD.**
74 Updated the Solarflare ``sfc_efx`` driver with changes including:
76 * Added SR-IOV PF support
78 * **Updated Virtio driver.**
80 * Added support for Vhost-vDPA backend to Virtio-user PMD.
81 * Changed default link speed to unknown.
82 * Added support for 200G link speed.
84 * **Added Ice Lake (Gen4) support for Intel NTB.**
86 Added NTB device support (4th generation) for Intel Ice Lake platform.
88 * **Added UDP/IPv4 GRO support for VxLAN and non-VxLAN packets.**
90 For VxLAN packets, added inner UDP/IPv4 support.
91 For non-VxLAN packets, added UDP/IPv4 support.
93 * **Extended flow-perf application.**
95 * Started supporting user order instead of bit mask:
96 Now the user can create any structure of rte_flow
97 using flow performance application with any order,
98 moreover the app also now starts to support inner
99 items matching as well.
100 * Added header modify actions.
102 * Added raw encap/decap actions.
103 * Added VXLAN encap/decap actions.
104 * Added ICMP and ICMP6 matching items.
105 * Added option to set port mask for insertion/deletion:
107 where N represents the hexadecimal bitmask of ports used.
109 * **Updated ioat rawdev driver**
111 The ioat rawdev driver has been updated and enhanced. Changes include:
113 * Added support for Intel\ |reg| Data Streaming Accelerator hardware.
114 For more information, see https://01.org/blogs/2019/introducing-intel-data-streaming-accelerator
115 * Added support for the fill operation via the API ``rte_ioat_enqueue_fill()``,
116 where the hardware fills an area of memory with a repeating pattern.
117 * Added a per-device configuration flag to disable management
118 of user-provided completion handles.
119 * Renamed the ``rte_ioat_do_copies()`` API to ``rte_ioat_perform_ops()``,
120 and renamed the ``rte_ioat_completed_copies()`` API to ``rte_ioat_completed_ops()``
121 to better reflect the APIs' purposes, and remove the implication that
122 they are limited to copy operations only.
123 [Note: The old API is still provided but marked as deprecated in the code]
124 * Added a new API ``rte_ioat_fence()`` to add a fence between operations.
125 This API replaces the ``fence`` flag parameter in the ``rte_ioat_enqueue_copies()`` function,
126 and is clearer as there is no ambiguity as to whether the flag should be
127 set on the last operation before the fence or the first operation after it.
129 * **Updated the pipeline library for alignment with the P4 language.**
131 Added new Software Switch (SWX) pipeline type that provides more
132 flexibility through API and feature alignment with the P4 language.
134 * The packet headers, meta-data, actions, tables and pipelines are
135 dynamically defined instead of selected from pre-defined set.
136 * The actions and the pipeline are defined with instructions.
137 * Extern objects and functions can be plugged into the pipeline.
138 * Transaction-oriented table updates.
144 .. This section should contain removed items in this release. Sample format:
146 * Add a short 1-2 sentence description of the removed item
149 This section is a comment. Do not overwrite or remove it.
150 Also, make sure to start the actual text at the margin.
151 =======================================================
153 * vhost: Dequeue zero-copy support has been removed.
155 * kernel: The module ``igb_uio`` has been moved to the git repository
156 ``dpdk-kmods`` in a new directory ``linux/igb_uio``.
158 * Removed Python 2 support since it was EOL'd in January 2020.
163 .. This section should contain API changes. Sample format:
165 * sample: Add a short 1-2 sentence description of the API change
166 which was announced in the previous releases and made in this release.
167 Start with a scope label like "ethdev:".
168 Use fixed width quotes for ``function_names`` or ``struct_names``.
171 This section is a comment. Do not overwrite or remove it.
172 Also, make sure to start the actual text at the margin.
173 =======================================================
175 * build macros: The macros defining ``RTE_MACHINE_CPUFLAG_*`` are removed.
176 The information provided by these macros is available through standard
179 * eal: The ``rte_logs`` struct and global symbol was made private
180 and is no longer part of the API.
182 * eal: Made the ``rte_dev_event`` structure private to the EAL as no public API
185 * eal: ``rte_cio_rmb()`` and ``rte_cio_wmb()`` were deprecated since 20.08
186 and are removed in this release.
188 * mem: Removed the unioned field ``phys_addr`` from
189 the structures ``rte_memseg`` and ``rte_memzone``.
190 The field ``iova`` is remaining from the old unions.
192 * mempool: Removed the unioned fields ``phys_addr`` and ``physaddr`` from
193 the structures ``rte_mempool_memhdr`` and ``rte_mempool_objhdr``.
194 The field ``iova`` is remaining from the old unions.
195 The flag name ``MEMPOOL_F_NO_PHYS_CONTIG`` is removed,
196 while the aliased flag ``MEMPOOL_F_NO_IOVA_CONTIG`` is kept.
198 * mbuf: Removed the functions ``rte_mbuf_data_dma_addr*``
199 and the macros ``rte_pktmbuf_mtophys*``.
200 The same functionality is still available with the functions and macros
201 having ``iova`` in their names instead of ``dma_addr`` or ``mtophys``.
203 * mbuf: Removed the unioned field ``buf_physaddr`` from ``rte_mbuf``.
204 The field ``buf_iova`` is remaining from the old union.
206 * mbuf: Removed the unioned field ``refcnt_atomic`` from
207 the structures ``rte_mbuf`` and ``rte_mbuf_ext_shared_info``.
208 The field ``refcnt`` is remaining from the old unions.
210 * pci: Removed the ``rte_kernel_driver`` enum defined in rte_dev.h and
211 replaced with a private enum in the PCI subsystem.
213 * pci: Removed the PCI resources map API from the public API
214 (``pci_map_resource`` and ``pci_unmap_resource``) and moved it to the
215 PCI bus driver along with the PCI resources lists and associated structures
216 (``pci_map``, ``pci_msix_table``, ``mapped_pci_resource`` and
217 ``mapped_pci_res_list``).
219 * ethdev: Removed the ``kdrv`` field in the ethdev ``rte_eth_dev_data``
220 structure as it gave no useful abstracted information to the applications.
222 * ethdev: ``rte_eth_rx_descriptor_done()`` API has been deprecated.
224 * Renamed internal ethdev APIs:
226 * ``_rte_eth_dev_callback_process()`` -> ``rte_eth_dev_callback_process()``
227 * ``_rte_eth_dev_reset`` -> ``rte_eth_dev_internal_reset()``
229 * vhost: Moved vDPA APIs from experimental to stable.
231 * rawdev: Added a structure size parameter to the functions
232 ``rte_rawdev_queue_setup()``, ``rte_rawdev_queue_conf_get()``,
233 ``rte_rawdev_info_get()`` and ``rte_rawdev_configure()``,
234 allowing limited driver type-checking and ABI compatibility.
236 * rawdev: Changed the return type of the function ``rte_dev_info_get()``
237 and the function ``rte_rawdev_queue_conf_get()``
238 from ``void`` to ``int`` allowing the return of error codes from drivers.
240 * rawdev: The running of a drivers ``selftest()`` function can now be done
241 using the ``rawdev_autotest`` command in the ``dpdk-test`` binary. This
242 command now calls the self-test function for each rawdev found on the
243 system, and does not require a specific command per device type.
244 Following this change, the ``ioat_rawdev_autotest`` command has been
245 removed as no longer needed.
247 * raw/ioat: As noted above, the ``rte_ioat_do_copies()`` and
248 ``rte_ioat_completed_copies()`` functions have been renamed to
249 ``rte_ioat_perform_ops()`` and ``rte_ioat_completed_ops()`` respectively.
251 * stack: the experimental tag has been dropped from the stack library, and its
252 interfaces are considered stable as of DPDK 20.11.
254 * bpf: ``RTE_BPF_XTYPE_NUM`` has been dropped from ``rte_bpf_xtype``.
260 .. This section should contain ABI changes. Sample format:
262 * sample: Add a short 1-2 sentence description of the ABI change
263 which was announced in the previous releases and made in this release.
264 Start with a scope label like "ethdev:".
265 Use fixed width quotes for ``function_names`` or ``struct_names``.
268 This section is a comment. Do not overwrite or remove it.
269 Also, make sure to start the actual text at the margin.
270 =======================================================
274 * Following device operation function pointers moved
275 from ``struct eth_dev_ops`` to ``struct rte_eth_dev``:
277 * ``eth_rx_queue_count_t rx_queue_count;``
278 * ``eth_rx_descriptor_done_t rx_descriptor_done;``
279 * ``eth_rx_descriptor_status_t rx_descriptor_status;``
280 * ``eth_tx_descriptor_status_t tx_descriptor_status;``
282 * ``struct eth_dev_ops`` is no more accessible by applications,
283 which was already internal data structure.
285 * ``ethdev`` internal functions are marked with ``__rte_internal`` tag.
291 .. This section should contain new known issues in this release. Sample format:
293 * **Add title in present tense with full stop.**
295 Add a short 1-2 sentence description of the known issue
296 in the present tense. Add information on any known workarounds.
298 This section is a comment. Do not overwrite or remove it.
299 Also, make sure to start the actual text at the margin.
300 =======================================================
306 .. This section should contain a list of platforms that were tested
311 * <vendor> platform with <vendor> <type of devices> combinations
316 * Other relevant details...
318 This section is a comment. Do not overwrite or remove it.
319 Also, make sure to start the actual text at the margin.
320 =======================================================