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.
64 * **Updated Cisco enic driver.**
66 * Added support for VF representors with single-queue Tx/Rx and flow API
67 * Added support for egress PORT_ID action
68 * Added support for non-zero priorities for group 0 flows
69 * Added support for VXLAN decap combined with VLAN pop
71 * **Updated Solarflare network PMD.**
73 Updated the Solarflare ``sfc_efx`` driver with changes including:
75 * Added SR-IOV PF support
77 * **Updated Virtio driver.**
79 * Added support for Vhost-vDPA backend to Virtio-user PMD.
80 * Changed default link speed to unknown.
81 * Added support for 200G link speed.
83 * **Added Ice Lake (Gen4) support for Intel NTB.**
85 Added NTB device support (4th generation) for Intel Ice Lake platform.
87 * **Extended flow-perf application.**
89 * Started supporting user order instead of bit mask:
90 Now the user can create any structure of rte_flow
91 using flow performance application with any order,
92 moreover the app also now starts to support inner
93 items matching as well.
94 * Added header modify actions.
96 * Added raw encap/decap actions.
97 * Added VXLAN encap/decap actions.
98 * Added ICMP and ICMP6 matching items.
99 * Added option to set port mask for insertion/deletion:
101 where N represents the hexadecimal bitmask of ports used.
103 * **Updated the pipeline library for alignment with the P4 language.**
105 Added new Software Switch (SWX) pipeline type that provides more
106 flexibility through API and feature alignment with the P4 language.
108 * The packet headers, meta-data, actions, tables and pipelines are
109 dynamically defined instead of selected from pre-defined set.
110 * The actions and the pipeline are defined with instructions.
111 * Extern objects and functions can be plugged into the pipeline.
112 * Transaction-oriented table updates.
118 .. This section should contain removed items in this release. Sample format:
120 * Add a short 1-2 sentence description of the removed item
123 This section is a comment. Do not overwrite or remove it.
124 Also, make sure to start the actual text at the margin.
125 =======================================================
127 * vhost: Dequeue zero-copy support has been removed.
129 * Removed Python 2 support since it was EOL'd in January 2020.
135 .. This section should contain API changes. Sample format:
137 * sample: Add a short 1-2 sentence description of the API change
138 which was announced in the previous releases and made in this release.
139 Start with a scope label like "ethdev:".
140 Use fixed width quotes for ``function_names`` or ``struct_names``.
143 This section is a comment. Do not overwrite or remove it.
144 Also, make sure to start the actual text at the margin.
145 =======================================================
147 * build macros: The macros defining ``RTE_MACHINE_CPUFLAG_*`` are removed.
148 The information provided by these macros is available through standard
151 * eal: The ``rte_logs`` struct and global symbol was made private
152 and is no longer part of the API.
154 * eal: Made the ``rte_dev_event`` structure private to the EAL as no public API
157 * eal: ``rte_cio_rmb()`` and ``rte_cio_wmb()`` were deprecated since 20.08
158 and are removed in this release.
160 * mem: Removed the unioned field ``phys_addr`` from
161 the structures ``rte_memseg`` and ``rte_memzone``.
162 The field ``iova`` is remaining from the old unions.
164 * mempool: Removed the unioned fields ``phys_addr`` and ``physaddr`` from
165 the structures ``rte_mempool_memhdr`` and ``rte_mempool_objhdr``.
166 The field ``iova`` is remaining from the old unions.
167 The flag name ``MEMPOOL_F_NO_PHYS_CONTIG`` is removed,
168 while the aliased flag ``MEMPOOL_F_NO_IOVA_CONTIG`` is kept.
170 * mbuf: Removed the functions ``rte_mbuf_data_dma_addr*``
171 and the macros ``rte_pktmbuf_mtophys*``.
172 The same functionality is still available with the functions and macros
173 having ``iova`` in their names instead of ``dma_addr`` or ``mtophys``.
175 * mbuf: Removed the unioned field ``buf_physaddr`` from ``rte_mbuf``.
176 The field ``buf_iova`` is remaining from the old union.
178 * mbuf: Removed the unioned field ``refcnt_atomic`` from
179 the structures ``rte_mbuf`` and ``rte_mbuf_ext_shared_info``.
180 The field ``refcnt`` is remaining from the old unions.
182 * pci: Removed the ``rte_kernel_driver`` enum defined in rte_dev.h and
183 replaced with a private enum in the PCI subsystem.
185 * pci: Removed the PCI resources map API from the public API
186 (``pci_map_resource`` and ``pci_unmap_resource``) and moved it to the
187 PCI bus driver along with the PCI resources lists and associated structures
188 (``pci_map``, ``pci_msix_table``, ``mapped_pci_resource`` and
189 ``mapped_pci_res_list``).
191 * ethdev: Removed the ``kdrv`` field in the ethdev ``rte_eth_dev_data``
192 structure as it gave no useful abstracted information to the applications.
194 * ethdev: ``rte_eth_rx_descriptor_done()`` API has been deprecated.
196 * Renamed internal ethdev APIs:
198 * ``_rte_eth_dev_callback_process()`` -> ``rte_eth_dev_callback_process()``
199 * ``_rte_eth_dev_reset`` -> ``rte_eth_dev_internal_reset()``
201 * vhost: Moved vDPA APIs from experimental to stable.
203 * rawdev: Added a structure size parameter to the functions
204 ``rte_rawdev_queue_setup()``, ``rte_rawdev_queue_conf_get()``,
205 ``rte_rawdev_info_get()`` and ``rte_rawdev_configure()``,
206 allowing limited driver type-checking and ABI compatibility.
208 * rawdev: Changed the return type of the function ``rte_dev_info_get()``
209 and the function ``rte_rawdev_queue_conf_get()``
210 from ``void`` to ``int`` allowing the return of error codes from drivers.
212 * stack: the experimental tag has been dropped from the stack library, and its
213 interfaces are considered stable as of DPDK 20.11.
215 * bpf: ``RTE_BPF_XTYPE_NUM`` has been dropped from ``rte_bpf_xtype``.
221 .. This section should contain ABI changes. Sample format:
223 * sample: Add a short 1-2 sentence description of the ABI change
224 which was announced in the previous releases and made in this release.
225 Start with a scope label like "ethdev:".
226 Use fixed width quotes for ``function_names`` or ``struct_names``.
229 This section is a comment. Do not overwrite or remove it.
230 Also, make sure to start the actual text at the margin.
231 =======================================================
235 * Following device operation function pointers moved
236 from ``struct eth_dev_ops`` to ``struct rte_eth_dev``:
238 * ``eth_rx_queue_count_t rx_queue_count;``
239 * ``eth_rx_descriptor_done_t rx_descriptor_done;``
240 * ``eth_rx_descriptor_status_t rx_descriptor_status;``
241 * ``eth_tx_descriptor_status_t tx_descriptor_status;``
243 * ``struct eth_dev_ops`` is no more accessible by applications,
244 which was already internal data structure.
246 * ``ethdev`` internal functions are marked with ``__rte_internal`` tag.
252 .. This section should contain new known issues in this release. Sample format:
254 * **Add title in present tense with full stop.**
256 Add a short 1-2 sentence description of the known issue
257 in the present tense. Add information on any known workarounds.
259 This section is a comment. Do not overwrite or remove it.
260 Also, make sure to start the actual text at the margin.
261 =======================================================
267 .. This section should contain a list of platforms that were tested
272 * <vendor> platform with <vendor> <type of devices> combinations
277 * Other relevant details...
279 This section is a comment. Do not overwrite or remove it.
280 Also, make sure to start the actual text at the margin.
281 =======================================================