1 .. SPDX-License-Identifier: BSD-3-Clause
2 Copyright 2018 The DPDK contributors
4 ABI and API Deprecation
5 =======================
7 See the :doc:`guidelines document for details of the ABI policy </contributing/versioning>`.
8 API and ABI deprecation notices are to be posted here.
14 * meson: The minimum supported version of meson for configuring and building
15 DPDK will be increased to v0.47.1 (from 0.41) from DPDK 19.05 onwards. For
16 those users with a version earlier than 0.47.1, an updated copy of meson
17 can be got using the ``pip``, or ``pip3``, tool for downloading python
20 * kvargs: The function ``rte_kvargs_process`` will get a new parameter
21 for returning key match count. It will ease handling of no-match case.
23 * eal: The ``attr_value`` parameter of ``rte_service_attr_get()``
24 will be changed from ``uint32_t *`` to ``uint64_t *``
25 as the attributes are of type ``uint64_t``.
27 * eal: both declaring and identifying devices will be streamlined in v18.11.
28 New functions will appear to query a specific port from buses, classes of
29 device and device drivers. Device declaration will be made coherent with the
30 new scheme of device identification.
31 As such, ``rte_devargs`` device representation will change.
33 - The enum ``rte_devtype`` was used to identify a bus and will disappear.
34 - Functions previously deprecated will change or disappear:
36 + ``rte_eal_devargs_type_count``
38 * pci: Several exposed functions are misnamed.
39 The following functions are deprecated starting from v17.11 and are replaced:
41 - ``eal_parse_pci_BDF`` replaced by ``rte_pci_addr_parse``
42 - ``eal_parse_pci_DomBDF`` replaced by ``rte_pci_addr_parse``
43 - ``rte_eal_compare_pci_addr`` replaced by ``rte_pci_addr_cmp``
45 * dpaa2: removal of ``rte_dpaa2_memsegs`` structure which has been replaced
46 by a pa-va search library. This structure was earlier being used for holding
47 memory segments used by dpaa2 driver for faster pa->va translation. This
48 structure would be made internal (or removed if all dependencies are cleared)
51 * ethdev: the legacy filter API, including
52 ``rte_eth_dev_filter_supported()``, ``rte_eth_dev_filter_ctrl()`` as well
53 as filter types MACVLAN, ETHERTYPE, FLEXIBLE, SYN, NTUPLE, TUNNEL, FDIR,
54 HASH and L2_TUNNEL, is superseded by the generic flow API (rte_flow) in
55 PMDs that implement the latter.
56 Target release for removal of the legacy API will be defined once most
57 PMDs have switched to rte_flow.
59 * ethdev: Maximum and minimum MTU values vary between hardware devices. In
60 hardware agnostic DPDK applications access to such information would allow
61 a more accurate way of validating and setting supported MTU values on a per
62 device basis rather than using a defined default for all devices. To
63 resolve this, the following members will be added to ``rte_eth_dev_info``.
64 Note: these can be added to fit a hole in the existing structure for amd64
65 but not for 32-bit, as such ABI change will occur as size of the structure
68 - Member ``uint16_t min_mtu`` the minimum MTU allowed.
69 - Member ``uint16_t max_mtu`` the maximum MTU allowed.
71 * crypto/aesni_mb: the minimum supported intel-ipsec-mb library version will be
72 changed from 0.49.0 to 0.52.0.