numam-dpdk/doc/guides/rel_notes/deprecation.rst
Pablo de Lara a1bed38381 doc: remove unneeded deprecation notice
In release 18.05, a deprecation notice to remove the `sym`
structure in the cryptodev info structure was sent.
However, only one of the fields inside the structure will
be removed, so the notice is not actually correct.
In any case, it needs to be removed.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
2018-07-11 03:57:24 +02:00

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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: DPDK runtime configuration file (located at
``/var/run/.<prefix>_config``) will be moved. The new path will be as follows:
- if DPDK is running as root, path will be set to
``/var/run/dpdk/<prefix>/config``
- if DPDK is not running as root and $XDG_RUNTIME_DIR is set, path will be set
to ``$XDG_RUNTIME_DIR/dpdk/<prefix>/config``
- if DPDK is not running as root and $XDG_RUNTIME_DIR is not set, path will be
set to ``/tmp/dpdk/<prefix>/config``
* eal: both declaring and identifying devices will be streamlined in v18.08.
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.
- 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``
+ ``rte_eal_devargs_parse`` will change its format and use.
* 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``
* eal: a new set of mbuf mempool ops name APIs for user, platform and best
mempool names have been defined in ``rte_mbuf`` in v18.02. The uses of
``rte_eal_mbuf_default_mempool_ops`` shall be replaced by
``rte_mbuf_best_mempool_ops``.
The following function is deprecated since 18.05, and will be removed
in 18.08:
- ``rte_eal_mbuf_default_mempool_ops``
* mbuf: The opaque ``mbuf->hash.sched`` field will be updated to support generic
definition in line with the ethdev TM and MTR APIs. Currently, this field
is defined in librte_sched in a non-generic way. The new generic format
will contain: queue ID, traffic class, color. Field size will not change.
* 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: In v18.11 ``DEV_RX_OFFLOAD_CRC_STRIP`` offload flag will be removed, default
behavior without any flag will be changed to CRC strip.
To keep CRC ``DEV_RX_OFFLOAD_KEEP_CRC`` flag is required.
``KEEP_CRC``: Keep CRC in packet
No flag: Strip CRC from packet
* 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.
* pdump: As we changed to use generic IPC, some changes in APIs and structure
are expected in subsequent release.
- ``rte_pdump_set_socket_dir`` will be removed;
- The parameter, ``path``, of ``rte_pdump_init`` will be removed;
- The enum ``rte_pdump_socktype`` will be removed.
* cryptodev: The following changes will be made in the library
for 18.08:
- Functions ``rte_cryptodev_queue_pair_attach_sym_session()`` and
``rte_cryptodev_queue_pair_dettach_sym_session()`` will be deprecated from
18.05 and removed in 18.08, as there are no drivers doing anything useful
with them.
- Functions ``rte_cryptodev_queue_pair_start()`` and
``rte_cryptodev_queue_pair_stop()`` will be deprecated from 18.05
and removed in 18.08, as there are no drivers doing anything useful
with them.
- Some feature flags such as ``RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER`` are ambiguous,
so some will be replaced by more explicit flags.
- Function ``rte_cryptodev_get_header_session_size()`` will be deprecated
in 18.05, and it gets replaced with ``rte_cryptodev_sym_get_header_session_size()``.
It will be removed in 18.08.
- Function ``rte_cryptodev_get_private_session_size()`` will be deprecated
in 18.05, and it gets replaced with ``rte_cryptodev_sym_get_private_session_size()``.
It will be removed in 18.08.