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ABI and API Deprecation
=======================
See the :doc:`guidelines document for details of the ABI policy </contributing/versioning>`.
API and ABI deprecation notices are to be posted here.
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:
- ``rte_eal_devargs_add``
- ``rte_eal_devargs_type_count``
- ``rte_eal_parse_devargs_str``, replaced by ``rte_eal_devargs_parse``
* pci: Several exposed functions are misnamed.
The following functions are deprecated starting from v17.11 and are replaced:
- ``eal_parse_pci_BDF`` replaced by ``rte_pci_addr_parse``
- ``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:
- 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.
* ethdev: the legacy filter API, including
``rte_eth_dev_filter_supported()``, ``rte_eth_dev_filter_ctrl()`` as well
as filter types MACVLAN, ETHERTYPE, FLEXIBLE, SYN, NTUPLE, TUNNEL, FDIR,
HASH and L2_TUNNEL, is superseded by the generic flow API (rte_flow) in
PMDs that implement the latter.
Target release for removal of the legacy API will be defined once most
PMDs have switched to rte_flow.
* i40e: The default flexible payload configuration which extracts the first 16
bytes of the payload for RSS will be deprecated starting from 18.02. If
required the previous behavior can be configured using existing flow
director APIs. There is no ABI/API break. This change will just remove a
global configuration setting and require explicit configuration.
* librte_meter: The API will change to accommodate configuration profiles.
Most of the API functions will have an additional opaque parameter.
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