1.. SPDX-License-Identifier: BSD-3-Clause 2 Copyright 2018 The DPDK contributors 3 4ABI and API Deprecation 5======================= 6 7See the :doc:`guidelines document for details of the ABI policy </contributing/versioning>`. 8API and ABI deprecation notices are to be posted here. 9 10 11Deprecation Notices 12------------------- 13 14* kvargs: The function ``rte_kvargs_process`` will get a new parameter 15 for returning key match count. It will ease handling of no-match case. 16 17* eal: both declaring and identifying devices will be streamlined in v18.11. 18 New functions will appear to query a specific port from buses, classes of 19 device and device drivers. Device declaration will be made coherent with the 20 new scheme of device identification. 21 As such, ``rte_devargs`` device representation will change. 22 23 - The enum ``rte_devtype`` was used to identify a bus and will disappear. 24 - Functions previously deprecated will change or disappear: 25 26 + ``rte_eal_devargs_type_count`` 27 28* pci: Several exposed functions are misnamed. 29 The following functions are deprecated starting from v17.11 and are replaced: 30 31 - ``eal_parse_pci_BDF`` replaced by ``rte_pci_addr_parse`` 32 - ``eal_parse_pci_DomBDF`` replaced by ``rte_pci_addr_parse`` 33 - ``rte_eal_compare_pci_addr`` replaced by ``rte_pci_addr_cmp`` 34 35* dpaa2: removal of ``rte_dpaa2_memsegs`` structure which has been replaced 36 by a pa-va search library. This structure was earlier being used for holding 37 memory segments used by dpaa2 driver for faster pa->va translation. This 38 structure would be made internal (or removed if all dependencies are cleared) 39 in future releases. 40 41* ethdev: the legacy filter API, including 42 ``rte_eth_dev_filter_supported()``, ``rte_eth_dev_filter_ctrl()`` as well 43 as filter types MACVLAN, ETHERTYPE, FLEXIBLE, SYN, NTUPLE, TUNNEL, FDIR, 44 HASH and L2_TUNNEL, is superseded by the generic flow API (rte_flow) in 45 PMDs that implement the latter. 46 Target release for removal of the legacy API will be defined once most 47 PMDs have switched to rte_flow. 48 49* ethdev: Maximum and minimum MTU values vary between hardware devices. In 50 hardware agnostic DPDK applications access to such information would allow 51 a more accurate way of validating and setting supported MTU values on a per 52 device basis rather than using a defined default for all devices. To 53 resolve this, the following members will be added to ``rte_eth_dev_info``. 54 Note: these can be added to fit a hole in the existing structure for amd64 55 but not for 32-bit, as such ABI change will occur as size of the structure 56 will increase. 57 58 - Member ``uint16_t min_mtu`` the minimum MTU allowed. 59 - Member ``uint16_t max_mtu`` the maximum MTU allowed. 60 61* crypto/aesni_mb: the minimum supported intel-ipsec-mb library version will be 62 changed from 0.49.0 to 0.52.0. 63