.. SPDX-License-Identifier: BSD-3-Clause Copyright 2019 The DPDK contributors .. include:: DPDK Release 19.08 ================== .. **Read this first.** The text in the sections below explains how to update the release notes. Use proper spelling, capitalization and punctuation in all sections. Variable and config names should be quoted as fixed width text: ``LIKE_THIS``. Build the docs and view the output file to ensure the changes are correct:: make doc-guides-html xdg-open build/doc/html/guides/rel_notes/release_19_08.html New Features ------------ .. This section should contain new features added in this release. Sample format: * **Add a title in the past tense with a full stop.** Add a short 1-2 sentence description in the past tense. The description should be enough to allow someone scanning the release notes to understand the new feature. If the feature adds a lot of sub-features you can use a bullet list like this: * Added feature foo to do something. * Enhanced feature bar to do something else. Refer to the previous release notes for examples. Suggested order in release notes items: * Core libs (EAL, mempool, ring, mbuf, buses) * Device abstraction libs and PMDs - ethdev (lib, PMDs) - cryptodev (lib, PMDs) - eventdev (lib, PMDs) - etc * Other libs * Apps, Examples, Tools (if significant) This section is a comment. Do not overwrite or remove it. Also, make sure to start the actual text at the margin. ========================================================= * **Updated the EAL Pseudo-random Number Generator.** The lrand48()-based rte_rand() function is replaced with a DPDK-native combined Linear Feedback Shift Register (LFSR) pseudo-random number generator (PRNG). This new PRNG implementation is multi-thread safe, provides higher-quality pseudo-random numbers (including full 64 bit support) and improved performance. In addition, is extended with a new function rte_rand_max() which supplies unbiased, bounded pseudo-random numbers. * **Updated the bnxt PMD.** Updated the bnxt PMD. The major enhancements include: * Performance optimizations in non-vector Tx path * Added support for SSE vector mode * Updated HWRM API to version 1.10.0.74 * **Added support for Broadcom NetXtreme-E BCM57500 Ethernet controllers.** Added support to the bnxt PMD for the BCM57500 (a.k.a. "Thor") family of Ethernet controllers. These controllers support link speeds up to 200Gbps, 50G PAM-4, and PCIe 4.0. * **Added hinic PMD.** Added the new ``hinic`` net driver for Huawei Intelligent PCIE Network Adapters based on the Huawei Ethernet Controller Hi1822. See the :doc:`../nics/hinic` guide for more details on this new driver. * **Updated the ice driver.** Updated ice driver with new features and improvements, including: * Enabled Tx outer/inner L3/L4 checksum offload. * Enabled generic filter framework and supported switch filter. * Supported UDP tunnel port add. * **Updated Solarflare network PMD.** Updated the Solarflare ``sfc_efx`` driver with changes including: * Added support for Rx interrupts. * **Added memif PMD.** Added the new Shared Memory Packet Interface (``memif``) PMD. See the :doc:`../nics/memif` guide for more details on this new driver. * **Updated the AF_XDP PMD.** Updated the AF_XDP PMD. The new features include: * Enabled zero copy through mbuf's external memory mechanism to achieve high performance * Added multi-queue support to allow one af_xdp vdev with multiple netdev queues * Enabled need_wakeup feature which can provide efficient support for case that application and driver executing on the same core. * **Enabled infinite Rx in the PCAP PMD.** Added an infinite Rx feature which allows packets in the Rx PCAP of a PCAP device to be received repeatedly at a high rate. This can be useful for quick performance testing of DPDK apps. * **Added Intel QuickData Technology PMD** The PMD for Intel\ |reg| QuickData Technology, part of Intel\ |reg| I/O Acceleration Technology `(Intel I/OAT) `_, allows data copies to be done by hardware instead of via software, reducing cycles spent copying large blocks of data in applications. * **Introduced NTB PMD.** Added a PMD for Intel NTB (Non-transparent Bridge). This PMD implemented handshake between two separate hosts and can share local memory for peer host to directly access. * **Updated telemetry library for global metrics support.** Updated ``librte_telemetry`` to fetch the global metrics from the ``librte_metrics`` library. * **Added new telemetry mode for l3fwd-power application.** Added telemetry mode to l3fwd-power application to report application level busyness, empty and full polls of rte_eth_rx_burst(). Removed Items ------------- .. This section should contain removed items in this release. Sample format: * Add a short 1-2 sentence description of the removed item in the past tense. This section is a comment. Do not overwrite or remove it. Also, make sure to start the actual text at the margin. ========================================================= * Removed KNI ethtool, CONFIG_RTE_KNI_KMOD_ETHTOOL, support. * build: armv8 crypto extension is disabled. API Changes ----------- .. This section should contain API changes. Sample format: * sample: Add a short 1-2 sentence description of the API change which was announced in the previous releases and made in this release. Start with a scope label like "ethdev:". Use fixed width quotes for ``function_names`` or ``struct_names``. Use the past tense. This section is a comment. Do not overwrite or remove it. Also, make sure to start the actual text at the margin. ========================================================= * The ``rte_mem_config`` structure has been made private. The new accessor ``rte_mcfg_*`` functions were introduced to provide replacement for direct access to the shared mem config. * The network structures, definitions and functions have been prefixed by ``rte_`` to resolve conflicts with libc headers. * malloc: The function ``rte_malloc_set_limit`` was never implemented is deprecated and will be removed in a future release. * eventdev: No longer marked as experimental. The eventdev functions are no longer marked as experimental, and have become part of the normal DPDK API and ABI. Any future ABI changes will be announced at least one release before the ABI change is made. There are no ABI breaking changes planned. ABI Changes ----------- .. This section should contain ABI changes. Sample format: * sample: Add a short 1-2 sentence description of the ABI change which was announced in the previous releases and made in this release. Start with a scope label like "ethdev:". Use fixed width quotes for ``function_names`` or ``struct_names``. Use the past tense. This section is a comment. Do not overwrite or remove it. Also, make sure to start the actual text at the margin. ========================================================= * eventdev: Event based Rx adapter callback The mbuf pointer array in the event eth Rx adapter callback has been replaced with an event array. Using an event array allows the application to change attributes of the events enqueued by the SW adapter. The callback can drop packets and populate a callback argument with the number of dropped packets. Add a Rx adapter stats field to keep track of the total number of dropped packets. Shared Library Versions ----------------------- .. Update any library version updated in this release and prepend with a ``+`` sign, like this: libfoo.so.1 + libupdated.so.2 libbar.so.1 This section is a comment. Do not overwrite or remove it. ========================================================= The libraries prepended with a plus sign were incremented in this version. .. code-block:: diff librte_acl.so.2 librte_bbdev.so.1 librte_bitratestats.so.2 librte_bpf.so.1 librte_bus_dpaa.so.2 librte_bus_fslmc.so.2 librte_bus_ifpga.so.2 librte_bus_pci.so.2 librte_bus_vdev.so.2 librte_bus_vmbus.so.2 librte_cfgfile.so.2 librte_cmdline.so.2 librte_compressdev.so.1 librte_cryptodev.so.7 librte_distributor.so.1 + librte_eal.so.11 librte_efd.so.1 librte_ethdev.so.12 + librte_eventdev.so.7 librte_flow_classify.so.1 librte_gro.so.1 librte_gso.so.1 librte_hash.so.2 librte_ip_frag.so.1 librte_ipsec.so.1 librte_jobstats.so.1 librte_kni.so.2 librte_kvargs.so.1 librte_latencystats.so.1 librte_lpm.so.2 librte_mbuf.so.5 librte_member.so.1 librte_mempool.so.5 librte_meter.so.3 librte_metrics.so.1 librte_net.so.1 librte_pci.so.1 librte_pdump.so.3 librte_pipeline.so.3 librte_pmd_bnxt.so.2 librte_pmd_bond.so.2 librte_pmd_i40e.so.2 librte_pmd_ixgbe.so.2 librte_pmd_dpaa2_qdma.so.1 librte_pmd_ring.so.2 librte_pmd_softnic.so.1 librte_pmd_vhost.so.2 librte_port.so.3 librte_power.so.1 librte_rawdev.so.1 librte_rcu.so.1 librte_reorder.so.1 librte_ring.so.2 librte_sched.so.2 librte_security.so.2 librte_stack.so.1 librte_table.so.3 librte_timer.so.1 librte_vhost.so.4 Known Issues ------------ .. This section should contain new known issues in this release. Sample format: * **Add title in present tense with full stop.** Add a short 1-2 sentence description of the known issue in the present tense. Add information on any known workarounds. This section is a comment. Do not overwrite or remove it. Also, make sure to start the actual text at the margin. ========================================================= Tested Platforms ---------------- .. This section should contain a list of platforms that were tested with this release. The format is: * platform with combinations * List of CPU * List of OS * List of devices * Other relevant details... This section is a comment. Do not overwrite or remove it. Also, make sure to start the actual text at the margin. =========================================================