Deprecation Notices
-------------------
-* build: The macros defined to indicate which DPDK libraries and drivers
- are included in the meson build are changing to a standardized format of
- ``RTE_LIB_<NAME>`` and ``RTE_<CLASS>_<NAME>``, where ``NAME`` is the
- upper-case component name, e.g. EAL, ETHDEV, IXGBE, and ``CLASS`` is the
- upper-case name of the device class to which a driver belongs e.g.
- ``NET``, ``CRYPTO``, ``VDPA``. The old macros are deprecated and will be
- removed in a future release.
-
-* meson: The minimum supported version of meson for configuring and building
- DPDK will be increased to v0.47.1 (from 0.41) from DPDK 19.05 onwards. For
- those users with a version earlier than 0.47.1, an updated copy of meson
- can be got using the ``pip3`` tool (or ``python3 -m pip``) for downloading
- python packages.
-
* kvargs: The function ``rte_kvargs_process`` will get a new parameter
for returning key match count. It will ease handling of no-match case.
In 19.11 PMDs will still update the field even when the offload is not
enabled.
+* ethdev: ``uint32_t max_rx_pkt_len`` field of ``struct rte_eth_rxmode``, will be
+ replaced by a new ``uint32_t mtu`` field of ``struct rte_eth_conf`` in v21.11.
+ The new ``mtu`` field will be used to configure the initial device MTU via
+ ``rte_eth_dev_configure()`` API.
+ Later MTU can be changed by ``rte_eth_dev_set_mtu()`` API as done now.
+ The existing ``(struct rte_eth_dev)->data->mtu`` variable will be used to store
+ the configured ``mtu`` value,
+ and this new ``(struct rte_eth_dev)->data->dev_conf.mtu`` variable will
+ be used to store the user configuration request.
+ Unlike ``max_rx_pkt_len``, which was valid only when ``JUMBO_FRAME`` enabled,
+ ``mtu`` field will be always valid.
+ When ``mtu`` config is not provided by the application, default ``RTE_ETHER_MTU``
+ value will be used.
+ ``(struct rte_eth_dev)->data->mtu`` should be updated after MTU set successfully,
+ either by ``rte_eth_dev_configure()`` or ``rte_eth_dev_set_mtu()``.
+
+ An application may need to configure device for a specific Rx packet size, like for
+ cases ``DEV_RX_OFFLOAD_SCATTER`` is not supported and device received packet size
+ can't be bigger than Rx buffer size.
+ To cover these cases an application needs to know the device packet overhead to be
+ able to calculate the ``mtu`` corresponding to a Rx buffer size, for this
+ ``(struct rte_eth_dev_info).max_rx_pktlen`` will be kept,
+ the device packet overhead can be calculated as:
+ ``(struct rte_eth_dev_info).max_rx_pktlen - (struct rte_eth_dev_info).max_mtu``
+
* ethdev: ``rx_descriptor_done`` dev_ops and ``rte_eth_rx_descriptor_done``
will be removed in 21.11.
Existing ``rte_eth_rx_descriptor_status`` and ``rte_eth_tx_descriptor_status``
as deprecated in DPDK 20.11, along with the associated macros ``ETH_MIRROR_*``.
This API will be fully removed in DPDK 21.11.
+* ethdev: Attribute ``shared`` of the ``struct rte_flow_action_count``
+ is deprecated and will be removed in DPDK 21.11. Shared counters should
+ be managed using shared actions API (``rte_flow_shared_action_create`` etc).
+
+* ethdev: The flow API matching pattern structures, ``struct rte_flow_item_*``,
+ should start with relevant protocol header.
+ Some matching pattern structures implements this by duplicating protocol header
+ fields in the struct. To clarify the intention and to be sure protocol header
+ is intact, will replace those fields with relevant protocol header struct.
+ In v21.02 both individual protocol header fields and the protocol header struct
+ will be added as union, target is switch usage to the protocol header by time.
+ In v21.11 LTS, protocol header fields will be cleaned and only protocol header
+ struct will remain.
+
* ethdev: Queue specific stats fields will be removed from ``struct rte_eth_stats``.
Mentioned fields are: ``q_ipackets``, ``q_opackets``, ``q_ibytes``, ``q_obytes``,
``q_errors``.
* cmdline: ``cmdline`` structure will be made opaque to hide platform-specific
content. On Linux and FreeBSD, supported prior to DPDK 20.11,
original structure will be kept until DPDK 21.11.
-
-* dpdk-setup.sh: This old script relies on deprecated stuff, and especially
- ``make``. Given environments are too much variables for such a simple script,
- it will be removed in DPDK 20.11.
- Some useful parts may be converted into specific scripts.
git.droids-corp.org / dpdk.git / blobdiff