DPDK Release 18.05 ================== .. **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_18_05.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. This section is a comment. Do not overwrite or remove it. Also, make sure to start the actual text at the margin. ========================================================= * **Added bucket mempool driver.** Added bucket mempool driver which provides a way to allocate contiguous block of objects. Number of objects in the block depends on how many objects fit in RTE_DRIVER_MEMPOOL_BUCKET_SIZE_KB memory chunk which is build time option. The number may be obtained using rte_mempool_ops_get_info() API. Contiguous blocks may be allocated using rte_mempool_get_contig_blocks() API. * **Added PMD-recommended Tx and Rx parameters** Applications can now query drivers for device-tuned values of ring sizes, burst sizes, and number of queues. * **Added RSS hash and key update to CXGBE PMD.** Support to update RSS hash and key has been added to CXGBE PMD. * **Added CXGBE VF PMD.** CXGBE VF Poll Mode Driver has been added to run DPDK over Chelsio T5/T6 NIC VF instances. * **Updated Solarflare network PMD.** Updated the sfc_efx driver including the following changes: * Added support for Solarflare XtremeScale X2xxx family adapters. * Added support for NVGRE, VXLAN and GENEVE filters in flow API. * Added support for DROP action in flow API. * Added support for equal stride super-buffer Rx mode (X2xxx only). * Added support for MARK and FLAG actions in flow API (X2xxx only). * **Added Ethernet poll mode driver for AMD XGBE devices.** Added the new ``axgbe`` ethernet poll mode driver for AMD XGBE devices. See the :doc:`../nics/axgbe` nic driver guide for more details on this new driver. * **Updated szedata2 PMD.** Added support for new NFB-200G2QL card. New API was introduced in the libsze2 library which the szedata2 PMD depends on thus the new version of the library was needed. New versions of the packages are available and the minimum required version is 4.4.1. * **Added support for Broadcom NetXtreme-S (BCM58800) family of controllers (aka Stingray)** The BCM58800 devices feature a NetXtreme E-Series advanced network controller, a high-performance ARM CPU block, PCI Express (PCIe) Gen3 interfaces, key accelerators for compute offload and a high- speed memory subsystem including L3 cache and DDR4 interfaces, all interconnected by a coherent Network-on-chip (NOC) fabric. The ARM CPU subsystem features eight ARMv8 Cortex-A72 CPUs at 3.0 GHz, arranged in a multi-cluster configuration. * **Added IFCVF vDPA driver.** Added IFCVF vDPA driver to support Intel FPGA 100G VF device. IFCVF works as a HW vhost data path accelerator, it supports live migration and is compatible with virtio 0.95 and 1.0. This driver registers ifcvf vDPA driver to vhost lib, when virtio connected, with the help of the registered vDPA driver the assigned VF gets configured to Rx/Tx directly to VM's virtio vrings. * **Added support for virtio-user server mode.** In a container environment if the vhost-user backend restarts, there's no way for it to reconnect to virtio-user. To address this, support for server mode is added. In this mode the socket file is created by virtio-user, which the backend connects to. This means that if the backend restarts, it can reconnect to virtio-user and continue communications. * **Added crypto workload support to vhost library.** New APIs are introduced in vhost library to enable virtio crypto support including session creation/deletion handling and translating virtio-crypto request into DPDK crypto operations. A sample application is also introduced. * **Added virtio crypto PMD.** Added a new poll mode driver for virtio crypto devices, which provides AES-CBC ciphering and AES-CBC with HMAC-SHA1 algorithm-chaining. See the :doc:`../cryptodevs/virtio` crypto driver guide for more details on this new driver. * **Added AMD CCP Crypto PMD.** Added the new ``ccp`` crypto driver for AMD CCP devices. See the :doc:`../cryptodevs/ccp` crypto driver guide for more details on this new driver. * **Updated AESNI MB PMD.** The AESNI MB PMD has been updated with additional support for: * AES-CMAC (128-bit key). * **Added the Event Timer Adapter Library.** The Event Timer Adapter Library extends the event-based model by introducing APIs that allow applications to arm/cancel event timers that generate timer expiry events. This new type of event is scheduled by an event device along with existing types of events. * **Added device event monitor framework.** Added a general device event monitor framework at EAL, for device dynamic management. Such as device hotplug awareness and actions adopted accordingly. The list of new APIs: * ``rte_dev_event_monitor_start`` and ``rte_dev_event_monitor_stop`` are for the event monitor enable and disable. * ``rte_dev_event_callback_register`` and ``rte_dev_event_callback_unregister`` are for the user's callbacks register and unregister. Linux uevent is supported as backend of this device event notification framework. * **Added support for procinfo and pdump on eth vdev.** For ethernet virtual devices (like tap, pcap, etc), with this feature, we can get stats/xstats on shared memory from secondary process, and also pdump packets on those virtual devices. API Changes ----------- .. This section should contain API changes. Sample format: * Add a short 1-2 sentence description of the API change. Use fixed width quotes for ``rte_function_names`` or ``rte_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. ========================================================= * service cores: no longer marked as experimental. The service cores 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. * eal: ``rte_lcore_has_role()`` return value changed. This function now returns true or false, respectively, rather than 0 or <0 for success or failure. It makes use of the function more intuitive. * mempool: capability flags and related functions have been removed. Flags ``MEMPOOL_F_CAPA_PHYS_CONTIG`` and ``MEMPOOL_F_CAPA_BLK_ALIGNED_OBJECTS`` were used by octeontx mempool driver to customize generic mempool library behaviour. Now the new driver callbacks ``calc_mem_size`` and ``populate`` may be used to achieve it without specific knowledge in the generic code. * mempool: xmem functions have been deprecated: - ``rte_mempool_xmem_create`` - ``rte_mempool_xmem_size`` - ``rte_mempool_xmem_usage`` - ``rte_mempool_populate_iova_tab`` * mbuf: The control mbuf API has been removed in v18.05. The impacted functions and macros are: - ``rte_ctrlmbuf_init()`` - ``rte_ctrlmbuf_alloc()`` - ``rte_ctrlmbuf_free()`` - ``rte_ctrlmbuf_data()`` - ``rte_ctrlmbuf_len()`` - ``rte_is_ctrlmbuf()`` - ``CTRL_MBUF_FLAG`` The packet mbuf API should be used as a replacement. * meter: updated to accommodate configuration profiles. The meter API is changed to support meter configuration profiles. The configuration profile represents the set of configuration parameters for a given meter object, such as the rates and sizes for the token buckets. These configuration parameters were previously the part of meter object internal data strcuture. The separation of the configuration parameters from meter object data structure results in reducing its memory footprint which helps in better cache utilization when large number of meter objects are used. * ethdev: The function ``rte_eth_dev_count``, often mis-used to iterate over ports, is deprecated and replaced by ``rte_eth_dev_count_avail``. There is also a new function ``rte_eth_dev_count_total`` to get the total number of allocated ports, available or not. The hotplug-proof applications should use ``RTE_ETH_FOREACH_DEV`` or ``RTE_ETH_FOREACH_DEV_OWNED_BY`` as port iterators. * ethdev, in struct ``struct rte_eth_dev_info``, field ``rte_pci_device *pci_dev`` replaced with field ``struct rte_device *device``. * **Changes to semantics of rte_eth_dev_configure() parameters.** If both the ``nb_rx_q`` and ``nb_tx_q`` parameters are zero, ``rte_eth_dev_configure`` will now use PMD-recommended queue sizes, or if recommendations are not provided by the PMD the function will use ethdev fall-back values. Previously setting both of the parameters to zero would have resulted in ``-EINVAL`` being returned. * **Changes to semantics of rte_eth_rx_queue_setup() parameters.** If the ``nb_rx_desc`` parameter is zero, ``rte_eth_rx_queue_setup`` will now use the PMD-recommended Rx ring size, or in the case where the PMD does not provide a recommendation, will use an ethdev-provided fall-back value. Previously, setting ``nb_rx_desc`` to zero would have resulted in an error. * **Changes to semantics of rte_eth_tx_queue_setup() parameters.** If the ``nb_tx_desc`` parameter is zero, ``rte_eth_tx_queue_setup`` will now use the PMD-recommended Tx ring size, or in the case where the PMD does not provide a recoomendation, will use an ethdev-provided fall-back value. Previously, setting ``nb_tx_desc`` to zero would have resulted in an error. * ethdev: several changes were made to the flow API. * Unused DUP action was removed. * Actions semantics in flow rules: list order now matters ("first to last" instead of "all simultaneously"), repeated actions are now all performed, and they do not individually have (non-)terminating properties anymore. * Flow rules are now always terminating unless a PASSTHRU action is present. * C99-style flexible arrays were replaced with standard pointers in RSS action and in RAW pattern item structures due to compatibility issues. * The RSS action was modified to not rely on external ``struct rte_eth_rss_conf`` anymore to instead expose its own and more appropriately named configuration fields directly (``rss_conf->rss_key`` => ``key``, ``rss_conf->rss_key_len`` => ``key_len``, ``rss_conf->rss_hf`` => ``types``, ``num`` => ``queue_num``), and the addition of missing RSS parameters (``func`` for RSS hash function to apply and ``level`` for the encapsulation level). * The VLAN pattern item (``struct rte_flow_item_vlan``) was modified to include inner EtherType instead of outer TPID. Its default mask was also modified to cover the VID part (lower 12 bits) of TCI only. * A new transfer attribute was added to ``struct rte_flow_attr`` in order to clarify the behavior of some pattern items. * PF and VF pattern items are now only accepted by PMDs that implement them (bnxt and i40e) when the transfer attribute is also present for consistency. * Pattern item PORT was renamed PHY_PORT to avoid confusion with DPDK port IDs. * An action counterpart to the PHY_PORT pattern item was added in order to redirect matching traffic to a specific physical port. * PORT_ID pattern item and actions were added to match and target DPDK port IDs at a higher level than PHY_PORT. * ethdev: change flow APIs regarding count action: * ``rte_flow_create()`` API count action now requires the ``struct rte_flow_action_count``. * ``rte_flow_query()`` API parameter changed from action type to action structure. ABI Changes ----------- .. This section should contain ABI changes. Sample format: * Add a short 1-2 sentence description of the ABI change that was announced in the previous releases and made in this release. Use fixed width quotes for ``rte_function_names`` or ``rte_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. ========================================================= * ring: the alignment constraints on the ring structure has been relaxed to one cache line instead of two, and an empty cache line padding is added between the producer and consumer structures. The size of the structure and the offset of the fields remains the same on platforms with 64B cache line, but change on other platforms. * mempool: ops have changed. A new callback ``calc_mem_size`` has been added to ``rte_mempool_ops`` to allow to customize required memory size calculation. A new callback ``populate`` has been added to ``rte_mempool_ops`` to allow to customize objects population. Callback ``get_capabilities`` has been removed from ``rte_mempool_ops`` since its features are covered by ``calc_mem_size`` and ``populate`` callbacks. Callback ``register_memory_area`` has been removed from ``rte_mempool_ops`` since the new callback ``populate`` may be used instead of it. * **Additional fields in rte_eth_dev_info.** The ``rte_eth_dev_info`` structure has had two extra entries appended to the end of it: ``default_rxportconf`` and ``default_txportconf``. Each of these in turn are ``rte_eth_dev_portconf`` structures containing three fields of type ``uint16_t``: ``burst_size``, ``ring_size``, and ``nb_queues``. These are parameter values recommended for use by the PMD. * ethdev: ABI for all flow API functions was updated. This includes functions ``rte_flow_copy``, ``rte_flow_create``, ``rte_flow_destroy``, ``rte_flow_error_set``, ``rte_flow_flush``, ``rte_flow_isolate``, ``rte_flow_query`` and ``rte_flow_validate``, due to changes in error type definitions (``enum rte_flow_error_type``), removal of the unused DUP action (``enum rte_flow_action_type``), modified behavior for flow rule actions (see API changes), removal of C99 flexible array from RAW pattern item (``struct rte_flow_item_raw``), complete rework of the RSS action definition (``struct rte_flow_action_rss``), sanity fix in the VLAN pattern item (``struct rte_flow_item_vlan``) and new transfer attribute (``struct rte_flow_attr``). 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. ========================================================= 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. ========================================================= * **pdump is not compatible with old applications.** As we changed to use generic multi-process communication for pdump negotiation instead of previous dedicated unix socket way, pdump applications, including dpdk-pdump example and any other applications using librte_pdump, cannot work with older version DPDK primary applications. Shared Library Versions ----------------------- .. Update any library version updated in this release and prepend with a ``+`` sign, like this: librte_acl.so.2 + librte_cfgfile.so.2 librte_cmdline.so.2 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_bus_dpaa.so.1 librte_bus_fslmc.so.1 librte_bus_pci.so.1 librte_bus_vdev.so.1 librte_cfgfile.so.2 librte_cmdline.so.2 + librte_common_octeontx.so.1 librte_cryptodev.so.4 librte_distributor.so.1 + librte_eal.so.7 + librte_ethdev.so.9 librte_eventdev.so.3 librte_flow_classify.so.1 librte_gro.so.1 librte_gso.so.1 librte_hash.so.2 librte_ip_frag.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.4 + librte_mempool.so.4 + librte_meter.so.2 librte_metrics.so.1 librte_net.so.1 librte_pci.so.1 librte_pdump.so.2 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_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_reorder.so.1 + librte_ring.so.2 librte_sched.so.1 librte_security.so.1 librte_table.so.3 librte_timer.so.1 librte_vhost.so.3 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. =========================================================