1 .. SPDX-License-Identifier: BSD-3-Clause
2 Copyright 2019 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::
22 xdg-open build/doc/html/guides/rel_notes/release_19_08.html
28 .. This section should contain new features added in this release.
31 * **Add a title in the past tense with a full stop.**
33 Add a short 1-2 sentence description in the past tense.
34 The description should be enough to allow someone scanning
35 the release notes to understand the new feature.
37 If the feature adds a lot of sub-features you can use a bullet list
40 * Added feature foo to do something.
41 * Enhanced feature bar to do something else.
43 Refer to the previous release notes for examples.
45 Suggested order in release notes items:
46 * Core libs (EAL, mempool, ring, mbuf, buses)
47 * Device abstraction libs and PMDs
49 - cryptodev (lib, PMDs)
50 - eventdev (lib, PMDs)
53 * Apps, Examples, Tools (if significant)
55 This section is a comment. Do not overwrite or remove it.
56 Also, make sure to start the actual text at the margin.
57 =========================================================
59 * **Updated the EAL Pseudo-random Number Generator.**
61 The lrand48()-based rte_rand() function is replaced with a
62 DPDK-native combined Linear Feedback Shift Register (LFSR)
63 pseudo-random number generator (PRNG).
65 This new PRNG implementation is multi-thread safe, provides
66 higher-quality pseudo-random numbers (including full 64 bit
67 support) and improved performance.
69 In addition, <rte_random.h> is extended with a new function
70 rte_rand_max() which supplies unbiased, bounded pseudo-random
73 * **Updated the bnxt PMD.**
75 Updated the bnxt PMD. The major enhancements include:
77 * Performance optimizations in non-vector Tx path
78 * Added support for SSE vector mode
79 * Updated HWRM API to version 1.10.0.74
81 * **Added support for Broadcom NetXtreme-E BCM57500 Ethernet controllers.**
83 Added support to the bnxt PMD for the BCM57500 (a.k.a. "Thor") family
84 of Ethernet controllers. These controllers support link speeds up to
85 200Gbps, 50G PAM-4, and PCIe 4.0.
87 * **Added hinic PMD.**
89 Added the new ``hinic`` net driver for Huawei Intelligent PCIE Network
90 Adapters based on the Huawei Ethernet Controller Hi1822.
91 See the :doc:`../nics/hinic` guide for more details on this new driver.
93 * **Updated the ice driver.**
95 Updated ice driver with new features and improvements, including:
97 * Enabled Tx outer/inner L3/L4 checksum offload.
98 * Enabled generic filter framework and supported switch filter.
99 * Supported UDP tunnel port add.
101 * **Updated Solarflare network PMD.**
103 Updated the Solarflare ``sfc_efx`` driver with changes including:
105 * Added support for Rx interrupts.
107 * **Added memif PMD.**
109 Added the new Shared Memory Packet Interface (``memif``) PMD.
110 See the :doc:`../nics/memif` guide for more details on this new driver.
112 * **Updated the AF_XDP PMD.**
114 Updated the AF_XDP PMD. The new features include:
116 * Enabled zero copy through mbuf's external memory mechanism to achieve
118 * Added multi-queue support to allow one af_xdp vdev with multiple netdev
120 * Enabled need_wakeup feature which can provide efficient support for case
121 that application and driver executing on the same core.
123 * **Added Intel QuickData Technology PMD**
125 The PMD for Intel\ |reg| QuickData Technology, part of
126 Intel\ |reg| I/O Acceleration Technology `(Intel I/OAT)
127 <https://www.intel.com/content/www/us/en/wireless-network/accel-technology.html>`_,
128 allows data copies to be done by hardware instead
129 of via software, reducing cycles spent copying large blocks of data in
132 * **Updated telemetry library for global metrics support.**
134 Updated ``librte_telemetry`` to fetch the global metrics from the
135 ``librte_metrics`` library.
137 * **Added new telemetry mode for l3fwd-power application.**
139 Added telemetry mode to l3fwd-power application to report
140 application level busyness, empty and full polls of rte_eth_rx_burst().
146 .. This section should contain removed items in this release. Sample format:
148 * Add a short 1-2 sentence description of the removed item
151 This section is a comment. Do not overwrite or remove it.
152 Also, make sure to start the actual text at the margin.
153 =========================================================
155 * Removed KNI ethtool, CONFIG_RTE_KNI_KMOD_ETHTOOL, support.
157 * build: armv8 crypto extension is disabled.
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 * The network structures, definitions and functions have
176 been prefixed by ``rte_`` to resolve conflicts with libc headers.
178 * malloc: The function ``rte_malloc_set_limit`` was never implemented
179 is deprecated and will be removed in a future release.
181 * eventdev: No longer marked as experimental.
183 The eventdev functions are no longer marked as experimental, and have
184 become part of the normal DPDK API and ABI. Any future ABI changes will be
185 announced at least one release before the ABI change is made. There are no
186 ABI breaking changes planned.
192 .. This section should contain ABI changes. Sample format:
194 * sample: Add a short 1-2 sentence description of the ABI change
195 which was announced in the previous releases and made in this release.
196 Start with a scope label like "ethdev:".
197 Use fixed width quotes for ``function_names`` or ``struct_names``.
200 This section is a comment. Do not overwrite or remove it.
201 Also, make sure to start the actual text at the margin.
202 =========================================================
204 * eventdev: Event based Rx adapter callback
206 The mbuf pointer array in the event eth Rx adapter callback
207 has been replaced with an event array. Using
208 an event array allows the application to change attributes
209 of the events enqueued by the SW adapter.
211 The callback can drop packets and populate
212 a callback argument with the number of dropped packets.
213 Add a Rx adapter stats field to keep track of the total
214 number of dropped packets.
217 Shared Library Versions
218 -----------------------
220 .. Update any library version updated in this release
221 and prepend with a ``+`` sign, like this:
227 This section is a comment. Do not overwrite or remove it.
228 =========================================================
230 The libraries prepended with a plus sign were incremented in this version.
236 librte_bitratestats.so.2
239 librte_bus_fslmc.so.2
240 librte_bus_ifpga.so.2
243 librte_bus_vmbus.so.2
246 librte_compressdev.so.1
247 librte_cryptodev.so.7
248 librte_distributor.so.1
252 + librte_eventdev.so.7
253 librte_flow_classify.so.1
262 librte_latencystats.so.1
276 librte_pmd_ixgbe.so.2
277 librte_pmd_dpaa2_qdma.so.1
279 librte_pmd_softnic.so.1
280 librte_pmd_vhost.so.2
298 .. This section should contain new known issues in this release. Sample format:
300 * **Add title in present tense with full stop.**
302 Add a short 1-2 sentence description of the known issue
303 in the present tense. Add information on any known workarounds.
305 This section is a comment. Do not overwrite or remove it.
306 Also, make sure to start the actual text at the margin.
307 =========================================================
313 .. This section should contain a list of platforms that were tested
318 * <vendor> platform with <vendor> <type of devices> combinations
323 * Other relevant details...
325 This section is a comment. Do not overwrite or remove it.
326 Also, make sure to start the actual text at the margin.
327 =========================================================