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 * **Introduced NTB PMD.**
134 Added a PMD for Intel NTB (Non-transparent Bridge). This PMD implemented
135 handshake between two separate hosts and can share local memory for peer
136 host to directly access.
138 * **Updated telemetry library for global metrics support.**
140 Updated ``librte_telemetry`` to fetch the global metrics from the
141 ``librte_metrics`` library.
143 * **Added new telemetry mode for l3fwd-power application.**
145 Added telemetry mode to l3fwd-power application to report
146 application level busyness, empty and full polls of rte_eth_rx_burst().
152 .. This section should contain removed items in this release. Sample format:
154 * Add a short 1-2 sentence description of the removed item
157 This section is a comment. Do not overwrite or remove it.
158 Also, make sure to start the actual text at the margin.
159 =========================================================
161 * Removed KNI ethtool, CONFIG_RTE_KNI_KMOD_ETHTOOL, support.
163 * build: armv8 crypto extension is disabled.
169 .. This section should contain API changes. Sample format:
171 * sample: Add a short 1-2 sentence description of the API change
172 which was announced in the previous releases and made in this release.
173 Start with a scope label like "ethdev:".
174 Use fixed width quotes for ``function_names`` or ``struct_names``.
177 This section is a comment. Do not overwrite or remove it.
178 Also, make sure to start the actual text at the margin.
179 =========================================================
181 * The network structures, definitions and functions have
182 been prefixed by ``rte_`` to resolve conflicts with libc headers.
184 * malloc: The function ``rte_malloc_set_limit`` was never implemented
185 is deprecated and will be removed in a future release.
187 * eventdev: No longer marked as experimental.
189 The eventdev functions are no longer marked as experimental, and have
190 become part of the normal DPDK API and ABI. Any future ABI changes will be
191 announced at least one release before the ABI change is made. There are no
192 ABI breaking changes planned.
198 .. This section should contain ABI changes. Sample format:
200 * sample: Add a short 1-2 sentence description of the ABI change
201 which was announced in the previous releases and made in this release.
202 Start with a scope label like "ethdev:".
203 Use fixed width quotes for ``function_names`` or ``struct_names``.
206 This section is a comment. Do not overwrite or remove it.
207 Also, make sure to start the actual text at the margin.
208 =========================================================
210 * eventdev: Event based Rx adapter callback
212 The mbuf pointer array in the event eth Rx adapter callback
213 has been replaced with an event array. Using
214 an event array allows the application to change attributes
215 of the events enqueued by the SW adapter.
217 The callback can drop packets and populate
218 a callback argument with the number of dropped packets.
219 Add a Rx adapter stats field to keep track of the total
220 number of dropped packets.
223 Shared Library Versions
224 -----------------------
226 .. Update any library version updated in this release
227 and prepend with a ``+`` sign, like this:
233 This section is a comment. Do not overwrite or remove it.
234 =========================================================
236 The libraries prepended with a plus sign were incremented in this version.
242 librte_bitratestats.so.2
245 librte_bus_fslmc.so.2
246 librte_bus_ifpga.so.2
249 librte_bus_vmbus.so.2
252 librte_compressdev.so.1
253 librte_cryptodev.so.7
254 librte_distributor.so.1
258 + librte_eventdev.so.7
259 librte_flow_classify.so.1
268 librte_latencystats.so.1
282 librte_pmd_ixgbe.so.2
283 librte_pmd_dpaa2_qdma.so.1
285 librte_pmd_softnic.so.1
286 librte_pmd_vhost.so.2
304 .. This section should contain new known issues in this release. Sample format:
306 * **Add title in present tense with full stop.**
308 Add a short 1-2 sentence description of the known issue
309 in the present tense. Add information on any known workarounds.
311 This section is a comment. Do not overwrite or remove it.
312 Also, make sure to start the actual text at the margin.
313 =========================================================
319 .. This section should contain a list of platforms that were tested
324 * <vendor> platform with <vendor> <type of devices> combinations
329 * Other relevant details...
331 This section is a comment. Do not overwrite or remove it.
332 Also, make sure to start the actual text at the margin.
333 =========================================================