1 .. SPDX-License-Identifier: BSD-3-Clause
2 Copyright 2018 The DPDK contributors
7 .. **Read this first.**
9 The text in the sections below explains how to update the release notes.
11 Use proper spelling, capitalization and punctuation in all sections.
13 Variable and config names should be quoted as fixed width text:
16 Build the docs and view the output file to ensure the changes are correct::
20 xdg-open build/doc/html/guides/rel_notes/release_18_11.html
26 .. This section should contain new features added in this release.
29 * **Add a title in the past tense with a full stop.**
31 Add a short 1-2 sentence description in the past tense.
32 The description should be enough to allow someone scanning
33 the release notes to understand the new feature.
35 If the feature adds a lot of sub-features you can use a bullet list
38 * Added feature foo to do something.
39 * Enhanced feature bar to do something else.
41 Refer to the previous release notes for examples.
43 Suggested order in release notes items:
44 * Core libs (EAL, mempool, ring, mbuf, buses)
45 * Device abstraction libs and PMDs
47 - cryptodev (lib, PMDs)
48 - eventdev (lib, PMDs)
51 * Apps, Examples, Tools (if significative)
53 This section is a comment. Do not overwrite or remove it.
54 Also, make sure to start the actual text at the margin.
55 =========================================================
57 * **Added support for using externally allocated memory in DPDK.**
59 DPDK has gained support for creating new ``rte_malloc`` heaps referencing
60 memory that was created outside of DPDK's own page allocator, and using that
61 memory natively with any other DPDK library or data structure.
63 * **Add support to offload more flow match and actions for CXGBE PMD**
65 Flow API support has been enhanced for CXGBE Poll Mode Driver to offload:
67 * Match items: destination MAC address.
68 * Action items: push/pop/rewrite vlan header.
70 * **Added a devarg to use the latest supported vector path in i40e.**
71 A new devarg ``use-latest-supported-vec`` was introduced to allow users to
72 choose the latest vector path that the platform supported. For example, users
73 can use AVX2 vector path on BDW/HSW to get better performance.
75 * **Added support for SR-IOV in netvsc PMD.**
77 The ``netvsc`` poll mode driver now supports the Accelerated Networking
78 SR-IOV option in Hyper-V and Azure. This is an alternative to the previous
79 vdev_netvsc, tap, and failsafe drivers combination.
81 * **Added a new net driver for Marvell Armada 3k device.**
83 Added the new ``mvneta`` net driver for Marvell Armada 3k device. See the
84 :doc:`../nics/mvneta` NIC guide for more details on this new driver.
86 * **Added NXP ENETC PMD.**
88 Added the new enetc driver for NXP enetc platform. See the
89 "ENETC Poll Mode Driver" document for more details on this new driver.
91 * **Updated Solarflare network PMD.**
93 Updated the sfc_efx driver including the following changes:
95 * Added support for Rx scatter in EF10 datapath implementation.
97 * **Updated failsafe driver.**
99 Updated the failsafe driver including the following changes:
101 * Support for Rx and Tx queues start and stop.
102 * Support for Rx and Tx queues deferred start.
103 * Support for runtime Rx and Tx queues setup.
104 * Support multicast MAC address set.
106 * **Added Event Ethernet Tx Adapter.**
108 Added event ethernet Tx adapter library that provides configuration and
109 data path APIs for the ethernet transmit stage of an event driven packet
110 processing application. These APIs abstract the implementation of the
111 transmit stage and allow the application to use eventdev PMD support or
112 a common implementation.
114 * **Added Distributed Software Eventdev PMD.**
116 Added the new Distributed Software Event Device (DSW), which is a
117 pure-software eventdev driver distributing the work of scheduling
118 among all eventdev ports and the lcores using them. DSW, compared to
119 the SW eventdev PMD, sacrifices load balancing performance to
120 gain better event scheduling throughput and scalability.
122 * **Added ability to switch queue deferred start flag on testpmd app.**
124 Added a console command to testpmd app, giving ability to switch
125 ``rx_deferred_start`` or ``tx_deferred_start`` flag of the specified queue of
126 the specified port. The port must be stopped before the command call in order
127 to reconfigure queues.
129 * **Add a new sample for vDPA**
131 The vdpa sample application creates vhost-user sockets by using the
132 vDPA backend. vDPA stands for vhost Data Path Acceleration which utilizes
133 virtio ring compatible devices to serve virtio driver directly to enable
134 datapath acceleration. As vDPA driver can help to set up vhost datapath,
135 this application doesn't need to launch dedicated worker threads for vhost
136 enqueue/dequeue operations.
142 .. This section should contain API changes. Sample format:
144 * Add a short 1-2 sentence description of the API change.
145 Use fixed width quotes for ``function_names`` or ``struct_names``.
148 This section is a comment. Do not overwrite or remove it.
149 Also, make sure to start the actual text at the margin.
150 =========================================================
152 * eal: ``rte_memseg_list`` structure now has an additional flag indicating
153 whether the memseg list is externally allocated. This will have implications
154 for any users of memseg-walk-related functions, as they will now have to skip
155 externally allocated segments in most cases if the intent is to only iterate
156 over internal DPDK memory.
157 ``socket_id`` parameter across the entire DPDK has gained additional meaning,
158 as some socket ID's will now be representing externally allocated memory. No
159 changes will be required for existing code as backwards compatibility will be
160 kept, and those who do not use this feature will not see these extra socket
161 ID's. Any new API's must not check socket ID parameters themselves, and must
162 instead leave it to the memory subsystem to decide whether socket ID is a
165 * eal: The following devargs functions, which were deprecated in 18.05,
166 were removed in 18.11:
167 ``rte_eal_parse_devargs_str()``, ``rte_eal_devargs_add()``,
168 ``rte_eal_devargs_type_count()``, and ``rte_eal_devargs_dump()``.
170 * eal: The parameters of the function ``rte_devargs_remove()`` have changed
171 from bus and device names to ``struct rte_devargs``.
173 * mbuf: The ``__rte_mbuf_raw_free()`` and ``__rte_pktmbuf_prefree_seg()``
174 functions were deprecated since 17.05 and are replaced by
175 ``rte_mbuf_raw_free()`` and ``rte_pktmbuf_prefree_seg()``.
177 * A new device flag, RTE_ETH_DEV_NOLIVE_MAC_ADDR, changes the order of
178 actions inside rte_eth_dev_start regarding MAC set. Some NICs do not
179 support MAC changes once the port has started and with this new device
180 flag the MAC can be properly configured in any case. This is particularly
181 important for bonding.
183 * The default behaviour of CRC strip offload changed. Without any specific Rx
184 offload flag, default behavior by PMD is now to strip CRC.
185 DEV_RX_OFFLOAD_CRC_STRIP offload flag has been removed.
186 To request keeping CRC, application should set ``DEV_RX_OFFLOAD_KEEP_CRC`` Rx
189 * eventdev: Type of 2nd parameter to ``rte_event_eth_rx_adapter_caps_get()``
190 has been changed from uint8_t to uint16_t.
196 .. This section should contain ABI changes. Sample format:
198 * Add a short 1-2 sentence description of the ABI change
199 that was announced in the previous releases and made in this release.
200 Use fixed width quotes for ``function_names`` or ``struct_names``.
203 This section is a comment. Do not overwrite or remove it.
204 Also, make sure to start the actual text at the margin.
205 =========================================================
207 * eal: added ``legacy_mem`` and ``single_file_segments`` values to
208 ``rte_config`` structure on account of improving DPDK usability when
209 using either ``--legacy-mem`` or ``--single-file-segments`` flags.
211 * eal: EAL library ABI version was changed due to previously announced work on
212 supporting external memory in DPDK:
213 - structure ``rte_memseg_list`` now has a new field indicating length
214 of memory addressed by the segment list
215 - structure ``rte_memseg_list`` now has a new flag indicating whether
216 the memseg list refers to external memory
217 - structure ``rte_malloc_heap`` now has a new field indicating socket
218 ID the malloc heap belongs to
219 - structure ``rte_mem_config`` has had its ``malloc_heaps`` array
220 resized from ``RTE_MAX_NUMA_NODES`` to ``RTE_MAX_HEAPS`` value
221 - structure ``rte_malloc_heap`` now has a ``heap_name`` member
222 - structure ``rte_eal_memconfig`` has been extended to contain next
223 socket ID for externally allocated segments
225 * eal: The structure ``rte_device`` got a new field to reference a ``rte_bus``.
226 It is changing the size of the ``struct rte_device`` and the inherited
227 device structures of all buses.
233 .. This section should contain removed items in this release. Sample format:
235 * Add a short 1-2 sentence description of the removed item
238 This section is a comment. Do not overwrite or remove it.
239 Also, make sure to start the actual text at the margin.
240 =========================================================
243 Shared Library Versions
244 -----------------------
246 .. Update any library version updated in this release
247 and prepend with a ``+`` sign, like this:
250 + librte_cfgfile.so.2
253 This section is a comment. Do not overwrite or remove it.
254 =========================================================
256 The libraries prepended with a plus sign were incremented in this version.
262 librte_bitratestats.so.2
264 + librte_bus_dpaa.so.2
265 + librte_bus_fslmc.so.2
266 + librte_bus_ifpga.so.2
267 + librte_bus_pci.so.2
268 + librte_bus_vdev.so.2
269 + librte_bus_vmbus.so.2
272 librte_common_octeontx.so.1
273 librte_compressdev.so.1
274 librte_cryptodev.so.5
275 librte_distributor.so.1
278 + librte_eventdev.so.6
279 librte_flow_classify.so.1
287 librte_latencystats.so.1
300 librte_pmd_ixgbe.so.2
301 librte_pmd_dpaa2_cmdif.so.1
302 librte_pmd_dpaa2_qdma.so.1
304 librte_pmd_softnic.so.1
305 librte_pmd_vhost.so.2
306 + librte_pmd_netvsc.so.1
322 .. This section should contain new known issues in this release. Sample format:
324 * **Add title in present tense with full stop.**
326 Add a short 1-2 sentence description of the known issue
327 in the present tense. Add information on any known workarounds.
329 This section is a comment. Do not overwrite or remove it.
330 Also, make sure to start the actual text at the margin.
331 =========================================================
333 * When using SR-IOV (VF) support with netvsc PMD and the Mellanox mlx5 bifurcated
334 driver; the Linux netvsc device must be brought up before the netvsc device is
335 unbound and passed to the DPDK.
341 .. This section should contain a list of platforms that were tested
346 * <vendor> platform with <vendor> <type of devices> combinations
351 * Other relevant details...
353 This section is a comment. Do not overwrite or remove it.
354 Also, make sure to start the actual text at the margin.
355 =========================================================