1 .. SPDX-License-Identifier: BSD-3-Clause
2 Copyright 2018 The DPDK contributors
7 .. **Read this first.**
9 The text in the sections below explains how to update the release notes.
11 Use proper spelling, capitalization and punctuation in all sections.
13 Variable and config names should be quoted as fixed width text:
16 Build the docs and view the output file to ensure the changes are correct::
20 xdg-open build/doc/html/guides/rel_notes/release_19_02.html
26 .. This section should contain new features added in this release.
29 * **Add a title in the past tense with a full stop.**
31 Add a short 1-2 sentence description in the past tense.
32 The description should be enough to allow someone scanning
33 the release notes to understand the new feature.
35 If the feature adds a lot of sub-features you can use a bullet list
38 * Added feature foo to do something.
39 * Enhanced feature bar to do something else.
41 Refer to the previous release notes for examples.
43 Suggested order in release notes items:
44 * Core libs (EAL, mempool, ring, mbuf, buses)
45 * Device abstraction libs and PMDs
47 - cryptodev (lib, PMDs)
48 - eventdev (lib, PMDs)
51 * Apps, Examples, Tools (if significant)
53 This section is a comment. Do not overwrite or remove it.
54 Also, make sure to start the actual text at the margin.
55 =========================================================
57 * **Added support to free hugepages exactly as originally allocated.**
59 Some applications using memory event callbacks (especially for managing
60 RDMA memory regions) require that memory be freed back to the system
61 exactly as it was originally allocated. These applications typically
62 also require that a malloc allocation not span across two separate
63 hugepage allocations. A new ``--match-allocations`` EAL init flag has
64 been added to fulfill both of these requirements.
66 * **Added API to register external memory in DPDK.**
68 A new ``rte_extmem_register``/``rte_extmem_unregister`` API was added to allow
69 chunks of external memory to be registered with DPDK without adding them to
72 * **Support for using virtio-user without hugepages**
74 The --no-huge mode was augmented to use memfd-backed memory (on systems that
75 support memfd), to allow using virtio-user-based NICs without hugepages.
77 * **Updated the enic driver.**
79 * Added support for ``RTE_ETH_DEV_CLOSE_REMOVE`` flag.
80 * Added the handler to get firmware version string.
81 * Added support for multicast filtering.
83 * **Added ICE net PMD**
85 Added the new ``ice`` net driver for IntelĀ® Ethernet Network Adapters E810.
86 See the :doc:`../nics/ice` NIC guide for more details on this new driver.
88 * **Added support for SW-assisted VDPA live migration.**
90 This SW-assisted VDPA live migration facility helps VDPA devices without
91 logging capability to perform live migration, a mediated SW relay can help
92 devices to track dirty pages caused by DMA. IFC driver has enabled this
93 SW-assisted live migration mode.
95 * **Added a compression performance test tool.**
97 Added a new performance test tool to test the compressdev PMD. The tool tests
98 compression ratio and compression throughput.
104 .. This section should contain removed items in this release. Sample format:
106 * Add a short 1-2 sentence description of the removed item
109 This section is a comment. Do not overwrite or remove it.
110 Also, make sure to start the actual text at the margin.
111 =========================================================
117 .. This section should contain API changes. Sample format:
119 * sample: Add a short 1-2 sentence description of the API change
120 which was announced in the previous releases and made in this release.
121 Start with a scope label like "ethdev:".
122 Use fixed width quotes for ``function_names`` or ``struct_names``.
125 This section is a comment. Do not overwrite or remove it.
126 Also, make sure to start the actual text at the margin.
127 =========================================================
129 * eal: Function ``rte_bsf64`` in ``rte_bitmap.h`` has been renamed to
130 ``rte_bsf64_safe`` and moved to ``rte_common.h``. A new ``rte_bsf64`` function
131 has been added in ``rte_common.h`` that follows convention set by existing
132 ``rte_bsf32`` function.
134 * eal: Segment fd API on Linux now sets error code to ``ENOTSUP`` in more cases
135 where segment fd API is not expected to be supported:
137 - On attempt to get segment fd for an externally allocated memory segment
138 - In cases where memfd support would have been required to provide segment
139 fd's (such as in-memory or no-huge mode)
141 * eal: Functions ``rte_malloc_dump_stats()``, ``rte_malloc_dump_heaps()`` and
142 ``rte_malloc_get_socket_stats()`` are no longer safe to call concurrently with
143 ``rte_malloc_heap_create()`` or ``rte_malloc_heap_destroy()`` function calls.
145 * pdump: The ``rte_pdump_set_socket_dir()``, the parameter ``path`` of
146 ``rte_pdump_init()`` and enum ``rte_pdump_socktype`` were deprecated
147 since 18.05 and are removed in this release.
153 .. This section should contain ABI changes. Sample format:
155 * sample: Add a short 1-2 sentence description of the ABI change
156 which was announced in the previous releases and made in this release.
157 Start with a scope label like "ethdev:".
158 Use fixed width quotes for ``function_names`` or ``struct_names``.
161 This section is a comment. Do not overwrite or remove it.
162 Also, make sure to start the actual text at the margin.
163 =========================================================
166 Shared Library Versions
167 -----------------------
169 .. Update any library version updated in this release
170 and prepend with a ``+`` sign, like this:
176 This section is a comment. Do not overwrite or remove it.
177 =========================================================
179 The libraries prepended with a plus sign were incremented in this version.
185 librte_bitratestats.so.2
188 librte_bus_fslmc.so.2
189 librte_bus_ifpga.so.2
192 librte_bus_vmbus.so.2
195 librte_compressdev.so.1
196 librte_cryptodev.so.5
197 librte_distributor.so.1
202 librte_flow_classify.so.1
210 librte_latencystats.so.1
224 librte_pmd_ixgbe.so.2
225 librte_pmd_dpaa2_qdma.so.1
227 librte_pmd_softnic.so.1
228 librte_pmd_vhost.so.2
244 .. This section should contain new known issues in this release. Sample format:
246 * **Add title in present tense with full stop.**
248 Add a short 1-2 sentence description of the known issue
249 in the present tense. Add information on any known workarounds.
251 This section is a comment. Do not overwrite or remove it.
252 Also, make sure to start the actual text at the margin.
253 =========================================================
259 .. This section should contain a list of platforms that were tested
264 * <vendor> platform with <vendor> <type of devices> combinations
269 * Other relevant details...
271 This section is a comment. Do not overwrite or remove it.
272 Also, make sure to start the actual text at the margin.
273 =========================================================