summaryrefslogtreecommitdiff
path: root/doc/guides/rel_notes/release_18_11.rst
blob: b35484055f9e692d247c4727ed8e6c1fcbbfe111 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
..  SPDX-License-Identifier: BSD-3-Clause
    Copyright 2018 The DPDK contributors

DPDK Release 18.11
==================

.. **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_11.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 significative)

     This section is a comment. Do not overwrite or remove it.
     Also, make sure to start the actual text at the margin.
     =========================================================

* **Added support for using externally allocated memory in DPDK.**

  DPDK has gained support for creating new ``rte_malloc`` heaps referencing
  memory that was created outside of DPDK's own page allocator, and using that
  memory natively with any other DPDK library or data structure.

* **Added hot-unplug handle mechanism.**

  ``rte_dev_hotplug_handle_enable`` and ``rte_dev_hotplug_handle_disable`` are
  for enabling or disabling hotplug handle mechanism.

* **Support device multi-process hotplug.**

  Hotplug and hot-unplug for devices will now be supported in multiprocessing
  scenario. Any ethdev devices created in the primary process will be regarded
  as shared and will be available for all DPDK processes. Synchronization
  between processes will be done using DPDK IPC.

* **Added new Flow API actions to rewrite fields in packet headers.**

  Added new Flow API actions to:

  * Modify source and destination IP addresses in the outermost IPv4/IPv6
    headers.
  * Modify source and destination port numbers in the outermost TCP/UDP
    headers.

* **Added new Flow API action to swap MAC addresses in Ethernet header.**

  Added new Flow API action to swap the source and destination MAC
  addresses in the outermost Ethernet header.

* **Add support to offload more flow match and actions for CXGBE PMD**

  Flow API support has been enhanced for CXGBE Poll Mode Driver to offload:

  * Match items: destination MAC address.
  * Action items: push/pop/rewrite vlan header,
    rewrite IP addresses in outermost IPv4/IPv6 header,
    rewrite port numbers in outermost TCP/UDP header,
    swap MAC addresses in outermost Ethernet header.

* **Added a devarg to use the latest supported vector path in i40e.**
  A new devarg ``use-latest-supported-vec`` was introduced to allow users to
  choose the latest vector path that the platform supported. For example, users
  can use AVX2 vector path on BDW/HSW to get better performance.

* **Added support for SR-IOV in netvsc PMD.**

  The ``netvsc`` poll mode driver now supports the Accelerated Networking
  SR-IOV option in Hyper-V and Azure. This is an alternative to the previous
  vdev_netvsc, tap, and failsafe drivers combination.

* **Added a new net driver for Marvell Armada 3k device.**

  Added the new ``mvneta`` net driver for Marvell Armada 3k device. See the
  :doc:`../nics/mvneta` NIC guide for more details on this new driver.

* **Added NXP ENETC PMD.**

  Added the new enetc driver for NXP enetc platform. See the
  "ENETC Poll Mode Driver" document for more details on this new driver.

* **Added Ethernet poll mode driver for Aquantia aQtion family of 10G devices.**

  Added the new ``atlantic`` ethernet poll mode driver for Aquantia XGBE devices.
  See the :doc:`../nics/atlantic` nic driver guide for more details on this
  driver.

* **Updated Solarflare network PMD.**

  Updated the sfc_efx driver including the following changes:

  * Added support for Rx scatter in EF10 datapath implementation.
  * Added support for Rx descriptor status API in EF10 datapath implementation.
  * Added support for TSO in EF10 datapath implementation.
  * Added support for Tx descriptor status API in EF10 (ef10 and ef10_simple)
    datapaths implementation.

* **Updated failsafe driver.**

  Updated the failsafe driver including the following changes:

  * Support for Rx and Tx queues start and stop.
  * Support for Rx and Tx queues deferred start.
  * Support for runtime Rx and Tx queues setup.
  * Support multicast MAC address set.

* **Added a devarg to use PCAP interface physical MAC address.**
  A new devarg ``phy_mac`` was introduced to allow users to use physical
  MAC address of the selected PCAP interface.

* **Added support for GEN3 devices to Intel QAT driver .**

  Added support for the third generation of Intel QuickAssist devices.

* **Updated the QAT PMD.**

  The QAT PMD was updated with additional support for:

  * AES-CMAC algorithm.

* **Updated the AESNI MB PMD.**

  The AESNI MB PMD has been updated with additional support for AES-GCM
  algorithm support.

* **Added NXP CAAM JR PMD.**

  Added the new caam job ring driver for NXP platforms. See the
  "NXP CAAM JOB RING (caam_jr)" document for more details on this new driver.

* **Added Event Ethernet Tx Adapter.**

  Added event ethernet Tx adapter library that  provides configuration and
  data path APIs for the ethernet transmit stage of an event driven packet
  processing application. These APIs abstract the implementation of the
  transmit stage and allow the application to use eventdev PMD support or
  a common implementation.

* **Added Distributed Software Eventdev PMD.**

  Added the new Distributed Software Event Device (DSW), which is a
  pure-software eventdev driver distributing the work of scheduling
  among all eventdev ports and the lcores using them. DSW, compared to
  the SW eventdev PMD, sacrifices load balancing performance to
  gain better event scheduling throughput and scalability.

* **Added extendable bucket feature to hash library (rte_hash).**

  This new “extendable bucket” feature provides 100% insertion guarantee to
  the capacity specified by the user by extending hash table with extra
  buckets when needed to accommodate the unlikely event of intensive hash
  collisions.  In addition, the internal hashing algorithm was changed to use
  partial-key hashing to improve memory efficiency and lookup performance.

* **Added lock free reader/writer concurrency to hash library (rte_hash).**

  Lock free reader/writer concurrency prevents the readers from getting
  blocked due to a pre-empted writer thread. This allows the hash library
  to be used in scenarios where the writer thread runs on control plane.

* **Added Traffic Pattern Aware Power Control Library**

  Added an experimental library. This extend Power Library and provide
  empty_poll APIs. This feature measure how many times empty_poll are
  executed per core, use the number of empty polls as a hint for system
  power management.

  See the :doc:`../prog_guide/power_man` section of the DPDK Programmers
  Guide document for more information.

* **Added JSON power policy interface for containers.**

  Extended the Power Library and vm_power_manager sample app to allow power
  policies to be submitted via a FIFO using JSON formatted strings. Previously
  limited to Virtual Machines, this feature extends power policy functionality
  to containers and host applications that need to have their cores frequency
  controlled based on the rules contained in the policy.

* **Added ability to switch queue deferred start flag on testpmd app.**

  Added a console command to testpmd app, giving ability to switch
  ``rx_deferred_start`` or ``tx_deferred_start`` flag of the specified queue of
  the specified port. The port must be stopped before the command call in order
  to reconfigure queues.

* **Add a new sample for vDPA**

  The vdpa sample application creates vhost-user sockets by using the
  vDPA backend. vDPA stands for vhost Data Path Acceleration which utilizes
  virtio ring compatible devices to serve virtio driver directly to enable
  datapath acceleration. As vDPA driver can help to set up vhost datapath,
  this application doesn't need to launch dedicated worker threads for vhost
  enqueue/dequeue operations.


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 ``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.
   =========================================================

* eal: ``rte_memseg_list`` structure now has an additional flag indicating
  whether the memseg list is externally allocated. This will have implications
  for any users of memseg-walk-related functions, as they will now have to skip
  externally allocated segments in most cases if the intent is to only iterate
  over internal DPDK memory.
  ``socket_id`` parameter across the entire DPDK has gained additional meaning,
  as some socket ID's will now be representing externally allocated memory. No
  changes will be required for existing code as backwards compatibility will be
  kept, and those who do not use this feature will not see these extra socket
  ID's. Any new API's must not check socket ID parameters themselves, and must
  instead leave it to the memory subsystem to decide whether socket ID is a
  valid one.

* eal: The following devargs functions, which were deprecated in 18.05,
  were removed in 18.11:
  ``rte_eal_parse_devargs_str()``, ``rte_eal_devargs_add()``,
  ``rte_eal_devargs_type_count()``, and ``rte_eal_devargs_dump()``.

* eal: The parameters of the function ``rte_devargs_remove()`` have changed
  from bus and device names to ``struct rte_devargs``.

* eal: The scope of ``rte_eal_hotplug_add()``/``rte_dev_probe()``
  and ``rte_eal_hotplug_remove()``/``rte_dev_remove()`` is extended.
  In multi-process model, they will guarantee that the device is
  attached or detached on all processes.

* mbuf: The ``__rte_mbuf_raw_free()`` and ``__rte_pktmbuf_prefree_seg()``
  functions were deprecated since 17.05 and are replaced by
  ``rte_mbuf_raw_free()`` and ``rte_pktmbuf_prefree_seg()``.

* A new device flag, RTE_ETH_DEV_NOLIVE_MAC_ADDR, changes the order of
  actions inside rte_eth_dev_start regarding MAC set. Some NICs do not
  support MAC changes once the port has started and with this new device
  flag the MAC can be properly configured in any case. This is particularly
  important for bonding.

* The default behaviour of CRC strip offload changed. Without any specific Rx
  offload flag, default behavior by PMD is now to strip CRC.
  DEV_RX_OFFLOAD_CRC_STRIP offload flag has been removed.
  To request keeping CRC, application should set ``DEV_RX_OFFLOAD_KEEP_CRC`` Rx
  offload.

* eventdev: Type of 2nd parameter to ``rte_event_eth_rx_adapter_caps_get()``
  has been changed from uint8_t to uint16_t.


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 ``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.
   =========================================================

* eal: added ``legacy_mem`` and ``single_file_segments`` values to
       ``rte_config`` structure on account of improving DPDK usability when
       using either ``--legacy-mem`` or ``--single-file-segments`` flags.

* eal: EAL library ABI version was changed due to previously announced work on
       supporting external memory in DPDK:
         - structure ``rte_memseg_list`` now has a new field indicating length
           of memory addressed by the segment list
         - structure ``rte_memseg_list`` now has a new flag indicating whether
           the memseg list refers to external memory
         - structure ``rte_malloc_heap`` now has a new field indicating socket
           ID the malloc heap belongs to
         - structure ``rte_mem_config`` has had its ``malloc_heaps`` array
           resized from ``RTE_MAX_NUMA_NODES`` to ``RTE_MAX_HEAPS`` value
         - structure ``rte_malloc_heap`` now has a ``heap_name`` member
         - structure ``rte_eal_memconfig`` has been extended to contain next
           socket ID for externally allocated segments

* eal: The structure ``rte_device`` got a new field to reference a ``rte_bus``.
  It is changing the size of the ``struct rte_device`` and the inherited
  device structures of all buses.


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.
   =========================================================


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_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.5
     librte_distributor.so.1
   + librte_eal.so.9
     librte_efd.so.1
   + librte_ethdev.so.11
   + librte_eventdev.so.6
     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_member.so.1
     librte_mempool.so.5
     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_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_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.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.
   =========================================================

* When using SR-IOV (VF) support with netvsc PMD and the Mellanox mlx5 bifurcated
  driver; the Linux netvsc device must be brought up before the netvsc device is
  unbound and passed to the DPDK.


Tested Platforms
----------------

.. This section should contain a list of platforms that were tested
   with this release.

   The format is:

   * <vendor> platform with <vendor> <type of devices> 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.
   =========================================================