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.
115 * Added support for matching on GRE's key and C,K,S present bits.
116 * Added support for IP-in-IP tunnel.
117 * Accelerate flows with count action creation and destroy.
118 * Accelerate flows counter query.
120 * **Updated Solarflare network PMD.**
122 Updated the Solarflare ``sfc_efx`` driver with changes including:
124 * Added support for Rx interrupts.
126 * **Added memif PMD.**
128 Added the new Shared Memory Packet Interface (``memif``) PMD.
129 See the :doc:`../nics/memif` guide for more details on this new driver.
131 * **Updated the AF_XDP PMD.**
133 Updated the AF_XDP PMD. The new features include:
135 * Enabled zero copy through mbuf's external memory mechanism to achieve
137 * Added multi-queue support to allow one af_xdp vdev with multiple netdev
139 * Enabled need_wakeup feature which can provide efficient support for case
140 that application and driver executing on the same core.
142 * **Enabled infinite Rx in the PCAP PMD.**
144 Added an infinite Rx feature which allows packets in the Rx PCAP of a PCAP
145 device to be received repeatedly at a high rate. This can be useful for quick
146 performance testing of DPDK apps.
148 * **Added a FPGA_LTE_FEC bbdev PMD.**
150 Added the new ``fpga_lte_fec`` bbdev driver for the IntelĀ® FPGA PAC
151 (Programmable Acceleration Card) N3000. See the
152 :doc:`../bbdevs/fpga_lte_fec` BBDEV guide for more details on this new driver.
154 * **Updated TURBO_SW bbdev PMD.**
156 Updated the ``turbo_sw`` bbdev driver with changes including:
158 * Added option to build the driver with or without dependency of external
160 * Added support for 5GNR encode/decode operations.
162 * **Updated the QuickAssist Technology (QAT) symmetric crypto PMD.**
164 Added support for digest-encrypted cases where digest is appended
167 * **Added Intel QuickData Technology PMD**
169 The PMD for Intel\ |reg| QuickData Technology, part of
170 Intel\ |reg| I/O Acceleration Technology `(Intel I/OAT)
171 <https://www.intel.com/content/www/us/en/wireless-network/accel-technology.html>`_,
172 allows data copies to be done by hardware instead
173 of via software, reducing cycles spent copying large blocks of data in
176 * **Added Marvell OCTEON TX2 drivers.**
178 Added the new ``ethdev``, ``eventdev``, ``mempool``, ``eventdev Rx adapter``,
179 ``eventdev Tx adapter``, ``eventdev Timer adapter`` and ``rawdev DMA``
180 drivers for various HW coprocessors available in ``OCTEON TX2`` SoC.
182 See :doc:`../platform/octeontx2` and driver informations:
184 * :doc:`../nics/octeontx2`
185 * :doc:`../mempool/octeontx2`
186 * :doc:`../eventdevs/octeontx2`
187 * :doc:`../rawdevs/octeontx2_dma`
189 * **Introduced NTB PMD.**
191 Added a PMD for Intel NTB (Non-transparent Bridge). This PMD implemented
192 handshake between two separate hosts and can share local memory for peer
193 host to directly access.
195 * **Updated IPSec library Header Reconstruction.**
197 Updated the IPSec library with ECN and DSCP field header reconstruction
198 feature followed by RFC4301. The IPSec-secgw sample application is also
199 updated to support this feature by default.
201 * **Updated telemetry library for global metrics support.**
203 Updated ``librte_telemetry`` to fetch the global metrics from the
204 ``librte_metrics`` library.
206 * **Added new telemetry mode for l3fwd-power application.**
208 Added telemetry mode to l3fwd-power application to report
209 application level busyness, empty and full polls of rte_eth_rx_burst().
211 * **Updated the pdump application.**
213 Add support for pdump to exit with primary process.
215 * **Updated test-compress-perf tool application.**
217 Added multiple cores feature to compression perf tool application.
223 .. This section should contain removed items in this release. Sample format:
225 * Add a short 1-2 sentence description of the removed item
228 This section is a comment. Do not overwrite or remove it.
229 Also, make sure to start the actual text at the margin.
230 =========================================================
232 * Removed KNI ethtool, CONFIG_RTE_KNI_KMOD_ETHTOOL, support.
234 * build: armv8 crypto extension is disabled.
240 .. This section should contain API changes. Sample format:
242 * sample: Add a short 1-2 sentence description of the API change
243 which was announced in the previous releases and made in this release.
244 Start with a scope label like "ethdev:".
245 Use fixed width quotes for ``function_names`` or ``struct_names``.
248 This section is a comment. Do not overwrite or remove it.
249 Also, make sure to start the actual text at the margin.
250 =========================================================
252 * The ``rte_mem_config`` structure has been made private. The new accessor
253 ``rte_mcfg_*`` functions were introduced to provide replacement for direct
254 access to the shared mem config.
256 * The network structures, definitions and functions have
257 been prefixed by ``rte_`` to resolve conflicts with libc headers.
259 * malloc: The function ``rte_malloc_set_limit`` was never implemented
260 is deprecated and will be removed in a future release.
262 * cryptodev: the ``uint8_t *data`` member of ``key`` structure in the xforms
263 structure (``rte_crypto_cipher_xform``, ``rte_crypto_auth_xform``, and
264 ``rte_crypto_aead_xform``) have been changed to ``const uint8_t *data``.
266 * eventdev: No longer marked as experimental.
268 The eventdev functions are no longer marked as experimental, and have
269 become part of the normal DPDK API and ABI. Any future ABI changes will be
270 announced at least one release before the ABI change is made. There are no
271 ABI breaking changes planned.
273 * ip_frag: IP fragmentation library converts input mbuf into fragments
274 using input MTU size via ``rte_ipv4_fragment_packet`` interface.
275 Once fragmentation is done, each ``mbuf->ol_flags`` are set to enable IP
276 checksum H/W offload irrespective of the platform capability.
277 Cleared IP checksum H/W offload flag from the library. The application must
278 set this flag if it is supported by the platform and application wishes to
281 * ip_frag: IP reassembly library converts the list of fragments into a
282 reassembled packet via ``rte_ipv4_frag_reassemble_packet`` interface.
283 Once reassembly is done, ``mbuf->ol_flags`` are set to enable IP checksum H/W
284 offload irrespective of the platform capability. Cleared IP checksum H/W
285 offload flag from the library. The application must set this flag if it is
286 supported by the platform and application wishes to use it.
288 * sched: Macros ``RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS`` and
289 ``RTE_SCHED_PIPE_PROFILES_PER_PORT`` are removed for flexible configuration
290 of pipe traffic classes and their queues size, and for runtime configuration
291 of maximum number of pipe profiles, respectively. In addtion, wrr_weights
292 field of struct ``rte_sched_pipe_params`` is modifed to be used only for
293 best-effort tc, and qsize field of struct ``rte_sched_port_params`` is
294 changed to allow different size of the each queue.
300 .. This section should contain ABI changes. Sample format:
302 * sample: Add a short 1-2 sentence description of the ABI change
303 which was announced in the previous releases and made in this release.
304 Start with a scope label like "ethdev:".
305 Use fixed width quotes for ``function_names`` or ``struct_names``.
308 This section is a comment. Do not overwrite or remove it.
309 Also, make sure to start the actual text at the margin.
310 =========================================================
312 * eventdev: Event based Rx adapter callback
314 The mbuf pointer array in the event eth Rx adapter callback
315 has been replaced with an event array. Using
316 an event array allows the application to change attributes
317 of the events enqueued by the SW adapter.
319 The callback can drop packets and populate
320 a callback argument with the number of dropped packets.
321 Add a Rx adapter stats field to keep track of the total
322 number of dropped packets.
324 * cryptodev: New member in ``rte_cryptodev_config`` to allow applications to
325 disable features supported by the crypto device. Only the following features
326 would be allowed to be disabled this way,
328 - ``RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO``
329 - ``RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO``
330 - ``RTE_CRYPTODEV_FF_SECURITY``
332 Disabling unused features would facilitate efficient usage of HW/SW offload.
334 * bbdev: New operations and parameters added to support new 5GNR operations.
335 The bbdev ABI is still kept experimental.
338 Shared Library Versions
339 -----------------------
341 .. Update any library version updated in this release
342 and prepend with a ``+`` sign, like this:
348 This section is a comment. Do not overwrite or remove it.
349 =========================================================
351 The libraries prepended with a plus sign were incremented in this version.
357 librte_bitratestats.so.2
360 librte_bus_fslmc.so.2
361 librte_bus_ifpga.so.2
364 librte_bus_vmbus.so.2
367 librte_compressdev.so.1
368 + librte_cryptodev.so.8
369 librte_distributor.so.1
373 + librte_eventdev.so.7
374 librte_flow_classify.so.1
383 librte_latencystats.so.1
397 librte_pmd_ixgbe.so.2
398 librte_pmd_dpaa2_qdma.so.1
400 librte_pmd_softnic.so.1
401 librte_pmd_vhost.so.2
419 .. This section should contain new known issues in this release. Sample format:
421 * **Add title in present tense with full stop.**
423 Add a short 1-2 sentence description of the known issue
424 in the present tense. Add information on any known workarounds.
426 This section is a comment. Do not overwrite or remove it.
427 Also, make sure to start the actual text at the margin.
428 =========================================================
434 .. This section should contain a list of platforms that were tested
439 * <vendor> platform with <vendor> <type of devices> combinations
444 * Other relevant details...
446 This section is a comment. Do not overwrite or remove it.
447 Also, make sure to start the actual text at the margin.
448 =========================================================