4 .. **Read this first.**
6 The text in the sections below explains how to update the release notes.
8 Use proper spelling, capitalization and punctuation in all sections.
10 Variable and config names should be quoted as fixed width text:
13 Build the docs and view the output file to ensure the changes are correct::
17 xdg-open build/doc/html/guides/rel_notes/release_17_05.html
23 .. This section should contain new features added in this release. Sample
26 * **Add a title in the past tense with a full stop.**
28 Add a short 1-2 sentence description in the past tense. The description
29 should be enough to allow someone scanning the release notes to
30 understand the new feature.
32 If the feature adds a lot of sub-features you can use a bullet list like
35 * Added feature foo to do something.
36 * Enhanced feature bar to do something else.
38 Refer to the previous release notes for examples.
40 This section is a comment. do not overwrite or remove it.
41 Also, make sure to start the actual text at the margin.
42 =========================================================
44 * **Added free Tx mbuf on demand API.**
46 Added a new function ``rte_eth_tx_done_cleanup()`` which allows an application
47 to request the driver to release mbufs from their Tx ring that are no longer
48 in use, independent of whether or not the ``tx_rs_thresh`` has been crossed.
50 * **Added descriptor status ethdev API.**
52 Added a new API to get the status of a descriptor.
54 For Rx, it is almost similar to the ``rx_descriptor_done`` API, except
55 it differentiates descriptors which are hold by the driver and not
56 returned to the hardware. For Tx, it is a new API.
58 * **Increased number of next hops for LPM IPv6 to 2^21.**
60 The next_hop field is extended from 8 bits to 21 bits for IPv6.
62 * **Added VFIO hotplug support.**
64 How hotplug supported with UIO and VFIO drivers.
66 * **Added powerpc support in pci probing for vfio-pci devices.**
68 sPAPR IOMMU based pci probing enabled for vfio-pci devices.
70 * **Kept consistent PMD batching behaviour.**
72 Removed the limit of fm10k/i40e/ixgbe TX burst size and vhost RX/TX burst size
73 in order to support the same policy of "make an best effort to RX/TX pkts"
76 * **Updated the ixgbe base driver.**
78 Updated the ixgbe base driver, including the following changes:
80 * Add link block check for KR.
81 * Complete HW initialization even if SFP is not present.
82 * Add VF xcast promiscuous mode.
84 * **Added powerpc support for i40e and its vector PMD .**
86 i40e PMD and its vector PMD enabled by default in powerpc.
88 * **Added VF max bandwidth setting on i40e.**
90 i40e HW supports to set the max bandwidth for a VF. Enable this capability.
92 * **Added VF TC min bandwidth setting on i40e.**
94 i40e HW supports to set the allocated bandwidth for a TC on a VF. Enable this
97 * **Added VF TC max bandwidth setting on i40e.**
99 i40e HW supports to set the max bandwidth for a TC on a VF. Enable this
102 * **Added TC strict priority mode setting on i40e.**
104 There're 2 TX scheduling modes supported for TCs by i40e HW, round ribon mode
105 and strict priority mode. By default it's round robin mode. Enable the
106 capability to change the TX scheduling mode for a TC. It's a global setting
109 * **Added i40e dynamic device personalization support.**
111 * Added dynamic device personalization processing to i40e FW.
113 * **Added TSO support for tunneled and non-tunneled packets on mlx5 driver.**
115 Added support for Hardware TSO for tunneled and non-tunneled packets.
116 Tunneling protocols supported are GRE and VXLAN.
118 * **Added support for Rx interrupts on mlx5 driver.**
120 Rx queues can be armed with an interrupt which will trigger on the
123 * **Updated the sfc_efx driver.**
125 * Generic flow API support for Ethernet, VLAN, IPv4, IPv6, UDP and TCP
126 pattern items with QUEUE action for ingress traffic.
128 * Support virtual functions (VFs)
130 * **Added LiquidIO network PMD.**
132 Added poll mode driver support for Cavium LiquidIO II server adapter VFs.
134 * **Added support for the Wind River Systems AVP PMD.**
136 Added a new networking driver for the AVP device type. Theses devices are
137 specific to the Wind River Systems virtualization platforms.
139 * **Added vmxnet3 version 3 support.**
141 Added support for vmxnet3 version 3 which includes several
142 performance enhancements viz. configurable TX data ring, Receive
143 Data Ring, ability to register memory regions.
145 * **Updated the tap driver.**
147 * Support MTU modification.
148 * Support packet type for Rx.
149 * Support segmented packets on Rx and Tx.
150 * Speed up Rx on tap when no packets are available.
151 * Support capturing traffic from another netdevice.
152 * Dynamically change link status when the underlying interface state changes.
153 * Generic flow API support for Ethernet, VLAN, IPv4, IPv6, UDP and TCP pattern
154 items with DROP, QUEUE and PASSTHRU actions for ingress traffic.
156 * **Added MTU feature support to Virtio and Vhost.**
158 Implemented new Virtio MTU feature into Vhost and Virtio:
160 * Add ``rte_vhost_mtu_get()`` API to Vhost library.
161 * Enable Vhost PMD's MTU get feature.
162 * Get max MTU value from host in Virtio PMD
164 * **Added interrupt mode support for virtio-user.**
166 Implemented Rxq interrupt mode and LSC support for virtio-user as a virtual
167 device. Supported cases:
169 * Rxq interrupt for virtio-user + vhost-user as the backend.
170 * Rxq interrupt for virtio-user + vhost-kernel as the backend.
171 * LSC interrupt for virtio-user + vhost-user as the backend.
177 .. This section should contain bug fixes added to the relevant
178 sections. Sample format:
180 * **code/section Fixed issue in the past tense with a full stop.**
182 Add a short 1-2 sentence description of the resolved issue in the past
185 The title should contain the code/lib section like a commit message.
187 Add the entries in alphabetic order in the relevant sections below.
189 This section is a comment. do not overwrite or remove it.
190 Also, make sure to start the actual text at the margin.
191 =========================================================
217 .. This section should contain new known issues in this release. Sample format:
219 * **Add title in present tense with full stop.**
221 Add a short 1-2 sentence description of the known issue in the present
222 tense. Add information on any known workarounds.
224 This section is a comment. do not overwrite or remove it.
225 Also, make sure to start the actual text at the margin.
226 =========================================================
228 * **LSC interrupt cannot work for virtio-user + vhost-kernel.**
230 LSC interrupt cannot be detected when setting the backend, tap device,
231 up/down as we fail to find a way to monitor such event.
237 .. This section should contain API changes. Sample format:
239 * Add a short 1-2 sentence description of the API change. Use fixed width
240 quotes for ``rte_function_names`` or ``rte_struct_names``. Use the past
243 This section is a comment. do not overwrite or remove it.
244 Also, make sure to start the actual text at the margin.
245 =========================================================
247 * The LPM ``next_hop`` field is extended from 8 bits to 21 bits for IPv6
248 while keeping ABI compatibility.
250 * **Reworked rte_ring library**
252 The rte_ring library has been reworked and updated. The following changes
253 have been made to it:
255 * removed the build-time setting ``CONFIG_RTE_RING_SPLIT_PROD_CONS``
256 * removed the build-time setting ``CONFIG_RTE_LIBRTE_RING_DEBUG``
257 * removed the build-time setting ``CONFIG_RTE_RING_PAUSE_REP_COUNT``
258 * removed the function ``rte_ring_set_water_mark`` as part of a general
259 removal of watermarks support in the library.
260 * added an extra parameter to the burst/bulk enqueue functions to
261 return the number of free spaces in the ring after enqueue. This can
262 be used by an application to implement its own watermark functionality.
263 * added an extra parameter to the burst/bulk dequeue functions to return
264 the number elements remaining in the ring after dequeue.
265 * changed the return value of the enqueue and dequeue bulk functions to
266 match that of the burst equivalents. In all cases, ring functions which
267 operate on multiple packets now return the number of elements enqueued
268 or dequeued, as appropriate. The updated functions are:
270 - ``rte_ring_mp_enqueue_bulk``
271 - ``rte_ring_sp_enqueue_bulk``
272 - ``rte_ring_enqueue_bulk``
273 - ``rte_ring_mc_dequeue_bulk``
274 - ``rte_ring_sc_dequeue_bulk``
275 - ``rte_ring_dequeue_bulk``
277 NOTE: the above functions all have different parameters as well as
278 different return values, due to the other listed changes above. This
279 means that all instances of the functions in existing code will be
280 flagged by the compiler. The return value usage should be checked
281 while fixing the compiler error due to the extra parameter.
286 .. This section should contain ABI changes. Sample format:
288 * Add a short 1-2 sentence description of the ABI change that was announced
289 in the previous releases and made in this release. Use fixed width quotes
290 for ``rte_function_names`` or ``rte_struct_names``. Use the past tense.
292 This section is a comment. do not overwrite or remove it.
293 Also, make sure to start the actual text at the margin.
294 =========================================================
300 .. This section should contain removed items in this release. Sample format:
302 * Add a short 1-2 sentence description of the removed item in the past
305 This section is a comment. do not overwrite or remove it.
306 Also, make sure to start the actual text at the margin.
307 =========================================================
309 * KNI vhost support removed.
312 Shared Library Versions
313 -----------------------
315 .. Update any library version updated in this release and prepend with a ``+``
319 + librte_cfgfile.so.2
322 This section is a comment. do not overwrite or remove it.
323 =========================================================
326 The libraries prepended with a plus sign were incremented in this version.
333 librte_cryptodev.so.2
334 librte_distributor.so.1
364 .. This section should contain a list of platforms that were tested with this
369 * <vendor> platform with <vendor> <type of devices> combinations
374 * Other relevant details...
376 This section is a comment. do not overwrite or remove it.
377 Also, make sure to start the actual text at the margin.
378 =========================================================