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: both declaring and identifying devices will be streamlined in v18.11.
24 New functions will appear to query a specific port from buses, classes of
25 device and device drivers. Device declaration will be made coherent with the
26 new scheme of device identification.
27 As such, ``rte_devargs`` device representation will change.
29 - The enum ``rte_devtype`` was used to identify a bus and will disappear.
30 - Functions previously deprecated will change or disappear:
32 + ``rte_eal_devargs_type_count``
34 * vfio: removal of ``rte_vfio_dma_map`` and ``rte_vfio_dma_unmap`` APIs which
35 have been replaced with ``rte_dev_dma_map`` and ``rte_dev_dma_unmap``
36 functions. The due date for the removal targets DPDK 20.02.
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54 HASH and L2_TUNNEL, is superseded by the generic flow API (rte_flow) in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 * kni: remove KNI ethtool support. To clarify, this is not to remove the KNI,
72 but only to remove ethtool support of it that is disabled by default and
73 can be enabled via ``CONFIG_RTE_KNI_KMOD_ETHTOOL`` config option.
74 Existing KNI ethtool implementation is only supported by ``igb`` & ``ixgbe``
75 drivers, by using a copy of kernel drivers in DPDK. This model cannot be
76 extended to all drivers in DPDK and it is too much effort to maintain
77 kernel modules in DPDK. As a result users won't be able to use ``ethtool``
78 via ``igb`` & ``ixgbe`` anymore.
80 * meter: New ``rte_color`` definition will be added in 19.02 and that will
81 replace ``enum rte_meter_color`` in meter library in 19.05. This will help
82 to consolidate color definition, which is currently replicated in many places,
83 such as: rte_meter.h, rte_mtr.h, rte_tm.h.
85 * crypto/aesni_mb: the minimum supported intel-ipsec-mb library version will be
86 changed from 0.49.0 to 0.52.0.