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 =========================================================
61 MCS lock provides scalability by spinning on a CPU/thread local variable
62 which avoids expensive cache bouncings.
63 It provides fairness by maintaining a list of acquirers and passing
64 the lock to each CPU/thread in the order they acquired the lock.
66 * **Updated the EAL Pseudo-random Number Generator.**
68 The lrand48()-based rte_rand() function is replaced with a
69 DPDK-native combined Linear Feedback Shift Register (LFSR)
70 pseudo-random number generator (PRNG).
72 This new PRNG implementation is multi-thread safe, provides
73 higher-quality pseudo-random numbers (including full 64 bit
74 support) and improved performance.
76 In addition, <rte_random.h> is extended with a new function
77 rte_rand_max() which supplies unbiased, bounded pseudo-random
80 * **Updated the bnxt PMD.**
82 Updated the bnxt PMD. The major enhancements include:
84 * Performance optimizations in non-vector Tx path
85 * Added support for SSE vector mode
86 * Updated HWRM API to version 1.10.0.74
88 * **Added support for Broadcom NetXtreme-E BCM57500 Ethernet controllers.**
90 Added support to the bnxt PMD for the BCM57500 (a.k.a. "Thor") family
91 of Ethernet controllers. These controllers support link speeds up to
92 200Gbps, 50G PAM-4, and PCIe 4.0.
94 * **Added hinic PMD.**
96 Added the new ``hinic`` net driver for Huawei Intelligent PCIE Network
97 Adapters based on the Huawei Ethernet Controller Hi1822.
98 See the :doc:`../nics/hinic` guide for more details on this new driver.
100 * **Updated the ice driver.**
102 Updated ice driver with new features and improvements, including:
104 * Enabled Tx outer/inner L3/L4 checksum offload.
105 * Enabled generic filter framework and supported switch filter.
106 * Supported UDP tunnel port add.
108 * **Updated Mellanox mlx5 driver.**
110 Updated Mellanox mlx5 driver with new features and improvements, including:
112 * Updated the packet header modification feature. Added support of TCP header
113 sequence number and acknowledgment number modification.
114 * Added support for match on ICMP/ICMP6 code and type.
116 * **Updated Solarflare network PMD.**
118 Updated the Solarflare ``sfc_efx`` driver with changes including:
120 * Added support for Rx interrupts.
122 * **Added memif PMD.**
124 Added the new Shared Memory Packet Interface (``memif``) PMD.
125 See the :doc:`../nics/memif` guide for more details on this new driver.
127 * **Updated the AF_XDP PMD.**
129 Updated the AF_XDP PMD. The new features include:
131 * Enabled zero copy through mbuf's external memory mechanism to achieve
133 * Added multi-queue support to allow one af_xdp vdev with multiple netdev
135 * Enabled need_wakeup feature which can provide efficient support for case
136 that application and driver executing on the same core.
138 * **Enabled infinite Rx in the PCAP PMD.**
140 Added an infinite Rx feature which allows packets in the Rx PCAP of a PCAP
141 device to be received repeatedly at a high rate. This can be useful for quick
142 performance testing of DPDK apps.
144 * **Added a FPGA_LTE_FEC bbdev PMD.**
146 Added the new ``fpga_lte_fec`` bbdev driver for the IntelĀ® FPGA PAC
147 (Programmable Acceleration Card) N3000. See the
148 :doc:`../bbdevs/fpga_lte_fec` BBDEV guide for more details on this new driver.
150 * **Updated TURBO_SW bbdev PMD.**
152 Updated the ``turbo_sw`` bbdev driver with changes including:
154 * Added option to build the driver with or without dependency of external
156 * Added support for 5GNR encode/decode operations.
158 * **Updated the QuickAssist Technology (QAT) symmetric crypto PMD.**
160 Added support for digest-encrypted cases where digest is appended
163 * **Added Intel QuickData Technology PMD**
165 The PMD for Intel\ |reg| QuickData Technology, part of
166 Intel\ |reg| I/O Acceleration Technology `(Intel I/OAT)
167 <https://www.intel.com/content/www/us/en/wireless-network/accel-technology.html>`_,
168 allows data copies to be done by hardware instead
169 of via software, reducing cycles spent copying large blocks of data in
172 * **Added Marvell OCTEON TX2 drivers.**
174 Added the new ``ethdev``, ``eventdev``, ``mempool``, ``eventdev Rx adapter``,
175 ``eventdev Tx adapter``, ``eventdev Timer adapter`` and ``rawdev DMA``
176 drivers for various HW coprocessors available in ``OCTEON TX2`` SoC.
178 See :doc:`../platform/octeontx2` and driver informations:
180 * :doc:`../nics/octeontx2`
181 * :doc:`../mempool/octeontx2`
182 * :doc:`../eventdevs/octeontx2`
183 * :doc:`../rawdevs/octeontx2_dma`
185 * **Introduced NTB PMD.**
187 Added a PMD for Intel NTB (Non-transparent Bridge). This PMD implemented
188 handshake between two separate hosts and can share local memory for peer
189 host to directly access.
191 * **Updated IPSec library Header Reconstruction.**
193 Updated the IPSec library with ECN and DSCP field header reconstruction
194 feature followed by RFC4301. The IPSec-secgw sample application is also
195 updated to support this feature by default.
197 * **Updated telemetry library for global metrics support.**
199 Updated ``librte_telemetry`` to fetch the global metrics from the
200 ``librte_metrics`` library.
202 * **Added new telemetry mode for l3fwd-power application.**
204 Added telemetry mode to l3fwd-power application to report
205 application level busyness, empty and full polls of rte_eth_rx_burst().
207 * **Updated the pdump application.**
209 Add support for pdump to exit with primary process.
211 * **Updated test-compress-perf tool application.**
213 Added multiple cores feature to compression perf tool application.
219 .. This section should contain removed items in this release. Sample format:
221 * Add a short 1-2 sentence description of the removed item
224 This section is a comment. Do not overwrite or remove it.
225 Also, make sure to start the actual text at the margin.
226 =========================================================
228 * Removed KNI ethtool, CONFIG_RTE_KNI_KMOD_ETHTOOL, support.
230 * build: armv8 crypto extension is disabled.
236 .. This section should contain API changes. Sample format:
238 * sample: Add a short 1-2 sentence description of the API change
239 which was announced in the previous releases and made in this release.
240 Start with a scope label like "ethdev:".
241 Use fixed width quotes for ``function_names`` or ``struct_names``.
244 This section is a comment. Do not overwrite or remove it.
245 Also, make sure to start the actual text at the margin.
246 =========================================================
248 * The ``rte_mem_config`` structure has been made private. The new accessor
249 ``rte_mcfg_*`` functions were introduced to provide replacement for direct
250 access to the shared mem config.
252 * The network structures, definitions and functions have
253 been prefixed by ``rte_`` to resolve conflicts with libc headers.
255 * malloc: The function ``rte_malloc_set_limit`` was never implemented
256 is deprecated and will be removed in a future release.
258 * cryptodev: the ``uint8_t *data`` member of ``key`` structure in the xforms
259 structure (``rte_crypto_cipher_xform``, ``rte_crypto_auth_xform``, and
260 ``rte_crypto_aead_xform``) have been changed to ``const uint8_t *data``.
262 * eventdev: No longer marked as experimental.
264 The eventdev functions are no longer marked as experimental, and have
265 become part of the normal DPDK API and ABI. Any future ABI changes will be
266 announced at least one release before the ABI change is made. There are no
267 ABI breaking changes planned.
269 * ip_frag: IP fragmentation library converts input mbuf into fragments
270 using input MTU size via ``rte_ipv4_fragment_packet`` interface.
271 Once fragmentation is done, each ``mbuf->ol_flags`` are set to enable IP
272 checksum H/W offload irrespective of the platform capability.
273 Cleared IP checksum H/W offload flag from the library. The application must
274 set this flag if it is supported by the platform and application wishes to
277 * ip_frag: IP reassembly library converts the list of fragments into a
278 reassembled packet via ``rte_ipv4_frag_reassemble_packet`` interface.
279 Once reassembly is done, ``mbuf->ol_flags`` are set to enable IP checksum H/W
280 offload irrespective of the platform capability. Cleared IP checksum H/W
281 offload flag from the library. The application must set this flag if it is
282 supported by the platform and application wishes to use it.
284 * sched: Macros ``RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS`` and
285 ``RTE_SCHED_PIPE_PROFILES_PER_PORT`` are removed for flexible configuration
286 of pipe traffic classes and their queues size, and for runtime configuration
287 of maximum number of pipe profiles, respectively. In addtion, wrr_weights
288 field of struct ``rte_sched_pipe_params`` is modifed to be used only for
289 best-effort tc, and qsize field of struct ``rte_sched_port_params`` is
290 changed to allow different size of the each queue.
296 .. This section should contain ABI changes. Sample format:
298 * sample: Add a short 1-2 sentence description of the ABI change
299 which was announced in the previous releases and made in this release.
300 Start with a scope label like "ethdev:".
301 Use fixed width quotes for ``function_names`` or ``struct_names``.
304 This section is a comment. Do not overwrite or remove it.
305 Also, make sure to start the actual text at the margin.
306 =========================================================
308 * eventdev: Event based Rx adapter callback
310 The mbuf pointer array in the event eth Rx adapter callback
311 has been replaced with an event array. Using
312 an event array allows the application to change attributes
313 of the events enqueued by the SW adapter.
315 The callback can drop packets and populate
316 a callback argument with the number of dropped packets.
317 Add a Rx adapter stats field to keep track of the total
318 number of dropped packets.
320 * cryptodev: New member in ``rte_cryptodev_config`` to allow applications to
321 disable features supported by the crypto device. Only the following features
322 would be allowed to be disabled this way,
324 - ``RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO``
325 - ``RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO``
326 - ``RTE_CRYPTODEV_FF_SECURITY``
328 Disabling unused features would facilitate efficient usage of HW/SW offload.
330 * bbdev: New operations and parameters added to support new 5GNR operations.
331 The bbdev ABI is still kept experimental.
334 Shared Library Versions
335 -----------------------
337 .. Update any library version updated in this release
338 and prepend with a ``+`` sign, like this:
344 This section is a comment. Do not overwrite or remove it.
345 =========================================================
347 The libraries prepended with a plus sign were incremented in this version.
353 librte_bitratestats.so.2
356 librte_bus_fslmc.so.2
357 librte_bus_ifpga.so.2
360 librte_bus_vmbus.so.2
363 librte_compressdev.so.1
364 + librte_cryptodev.so.8
365 librte_distributor.so.1
369 + librte_eventdev.so.7
370 librte_flow_classify.so.1
379 librte_latencystats.so.1
393 librte_pmd_ixgbe.so.2
394 librte_pmd_dpaa2_qdma.so.1
396 librte_pmd_softnic.so.1
397 librte_pmd_vhost.so.2
415 .. This section should contain new known issues in this release. Sample format:
417 * **Add title in present tense with full stop.**
419 Add a short 1-2 sentence description of the known issue
420 in the present tense. Add information on any known workarounds.
422 This section is a comment. Do not overwrite or remove it.
423 Also, make sure to start the actual text at the margin.
424 =========================================================
430 .. This section should contain a list of platforms that were tested
435 * <vendor> platform with <vendor> <type of devices> combinations
440 * Other relevant details...
442 This section is a comment. Do not overwrite or remove it.
443 Also, make sure to start the actual text at the margin.
444 =========================================================