+.. SPDX-License-Identifier: BSD-3-Clause
+ Copyright 2018 The DPDK contributors
+
ABI and API Deprecation
=======================
Deprecation Notices
-------------------
-* eal: several API and ABI changes are planned for ``rte_devargs`` in v18.02.
- The format of device command line parameters will change. The bus will need
- to be explicitly stated in the device declaration. The enum ``rte_devtype``
- was used to identify a bus and will disappear.
- The structure ``rte_devargs`` will change.
- The ``rte_devargs_list`` will be made private.
- The following functions are deprecated starting from 17.08 and will either be
- modified or removed in 18.02:
+* linux: Linux kernel version 3.2 (which is the current minimum required
+ version for the DPDK) is not maintained anymore. Therefore the planned
+ minimum required kernel version for DPDK 19.02 will be the next oldest
+ Long Term Stable (LTS) version which is 3.16, but compatibility for
+ recent distribution kernels will be kept.
+
+* kvargs: The function ``rte_kvargs_process`` will get a new parameter
+ for returning key match count. It will ease handling of no-match case.
+
+* eal: both declaring and identifying devices will be streamlined in v18.11.
+ New functions will appear to query a specific port from buses, classes of
+ device and device drivers. Device declaration will be made coherent with the
+ new scheme of device identification.
+ As such, ``rte_devargs`` device representation will change.
- - ``rte_eal_devargs_add``
- - ``rte_eal_devargs_type_count``
- - ``rte_eal_parse_devargs_str``, replaced by ``rte_eal_devargs_parse``
+ - The enum ``rte_devtype`` was used to identify a bus and will disappear.
+ - Functions previously deprecated will change or disappear:
+
+ + ``rte_eal_devargs_type_count``
* pci: Several exposed functions are misnamed.
The following functions are deprecated starting from v17.11 and are replaced:
- ``eal_parse_pci_DomBDF`` replaced by ``rte_pci_addr_parse``
- ``rte_eal_compare_pci_addr`` replaced by ``rte_pci_addr_cmp``
-* ethdev: a new Tx and Rx offload API was introduced on 17.11.
- In the new API, offloads are divided into per-port and per-queue offloads.
- Offloads are disabled by default and enabled per application request.
- The old offloads API is target to be deprecated on 18.05. This includes:
+* dpaa2: removal of ``rte_dpaa2_memsegs`` structure which has been replaced
+ by a pa-va search library. This structure was earlier being used for holding
+ memory segments used by dpaa2 driver for faster pa->va translation. This
+ structure would be made internal (or removed if all dependencies are cleared)
+ in future releases.
- - removal of ``ETH_TXQ_FLAGS_NO*`` flags.
- - removal of ``txq_flags`` field from ``rte_eth_txconf`` struct.
- - removal of the offloads bit-field from ``rte_eth_rxmode`` struct.
+* mbuf: the macro ``RTE_MBUF_INDIRECT()`` will be removed in v18.08 or later and
+ replaced with ``RTE_MBUF_CLONED()`` which is already added in v18.05. As
+ ``EXT_ATTACHED_MBUF`` is newly introduced in v18.05, ``RTE_MBUF_INDIRECT()``
+ can no longer be mutually exclusive with ``RTE_MBUF_DIRECT()`` if the new
+ experimental API ``rte_pktmbuf_attach_extbuf()`` is used. Removal of the macro
+ is to fix this semantic inconsistency.
* ethdev: the legacy filter API, including
``rte_eth_dev_filter_supported()``, ``rte_eth_dev_filter_ctrl()`` as well
Target release for removal of the legacy API will be defined once most
PMDs have switched to rte_flow.
-* librte_meter: The API will change to accommodate configuration profiles.
- Most of the API functions will have an additional opaque parameter.
+* ethdev: Maximum and minimum MTU values vary between hardware devices. In
+ hardware agnostic DPDK applications access to such information would allow
+ a more accurate way of validating and setting supported MTU values on a per
+ device basis rather than using a defined default for all devices. To
+ resolve this, the following members will be added to ``rte_eth_dev_info``.
+ Note: these can be added to fit a hole in the existing structure for amd64
+ but not for 32-bit, as such ABI change will occur as size of the structure
+ will increase.
+
+ - Member ``uint16_t min_mtu`` the minimum MTU allowed.
+ - Member ``uint16_t max_mtu`` the maximum MTU allowed.
+
+* security: New field ``uint64_t opaque_data`` is planned to be added into
+ ``rte_security_session`` structure. That would allow upper layer to easily
+ associate/de-associate some user defined data with the security session.
+
+* cryptodev: several API and ABI changes are planned for rte_cryptodev
+ in v19.02:
+
+ - The size and layout of ``rte_cryptodev_sym_session`` will change
+ to fix existing issues.
+
+* crypto/aesni_mb: the minimum supported intel-ipsec-mb library version will be
+ changed from 0.49.0 to 0.52.0.
git.droids-corp.org / dpdk.git / blobdiff