* Added bus-level parsing of the devargs syntax.
* Kept compatibility with the legacy syntax as parsing fallback.
+* **Updated EAL hugetlbfs mount handling for Linux.**
+
+ * Modified to allow ``--huge-dir`` option to specify a sub-directory
+ within a hugetlbfs mountpoint.
+
+* **Added dmadev library.**
+
+ * Added a DMA device framework for management and provision of
+ hardware and software DMA devices.
+ * Added generic API which support a number of different DMA
+ operations.
+ * Added multi-process support.
+
+* **Added support to get all MAC addresses of a device.**
+
+ Added ``rte_eth_macaddrs_get`` to allow user to retrieve all Ethernet
+ addresses assigned to given ethernet port.
+
+* **Added new RSS offload types for IPv4/L4 checksum in RSS flow.**
+
+ Added macros ETH_RSS_IPV4_CHKSUM and ETH_RSS_L4_CHKSUM, now IPv4 and
+ TCP/UDP/SCTP header checksum field can be used as input set for RSS.
+
+* **Added ethdev support to control delivery of Rx metadata from the HW to the PMD.**
+
+ A new API, ``rte_eth_rx_metadata_negotiate()``, was added.
+ The following parts of Rx metadata were defined:
+
+ * ``RTE_ETH_RX_METADATA_USER_FLAG``
+ * ``RTE_ETH_RX_METADATA_USER_MARK``
+ * ``RTE_ETH_RX_METADATA_TUNNEL_ID``
+
+* **Updated af_packet ethdev driver.**
+
+ * Default VLAN strip behavior was changed. VLAN tag won't be stripped
+ unless ``DEV_RX_OFFLOAD_VLAN_STRIP`` offload is enabled.
+
+* **Updated AF_XDP PMD.**
+
+ * Disabled secondary process support.
+
+* **Updated Broadcom bnxt PMD.**
+
+ * Added flow offload support for Thor.
+ * Implement support for tunnel offload.
+ * Updated HWRM API to version 1.10.2.44
+
+* **Updated Intel iavf driver.**
+
+ * Added Intel iavf support on Windows.
+ * Added IPv4 and L4 (TCP/UDP/SCTP) checksum hash support in RSS flow.
+
+* **Updated Intel ice driver.**
+
+ * Added 1PPS out support by a devargs.
+ * Added IPv4 and L4 (TCP/UDP/SCTP) checksum hash support in RSS flow.
+ * Added DEV_RX_OFFLOAD_TIMESTAMP support.
+ * Added timesync API support under scalar path.
+
+* **Updated Intel ixgbe driver.**
+
+ * Added Intel ixgbe support on Windows.
+
* **Updated Marvell cnxk ethdev driver.**
* Added rte_flow support for dual VLAN insert and strip actions.
+ * Added rte_tm support.
+ * Added support for Inline IPsec for CN9K event mode and CN10K
+ poll mode and event mode.
+
+* **Updated Mellanox mlx5 driver.**
+
+ Updated the Mellanox mlx5 driver with new features and improvements, including:
+
+ * Added implicit mempool registration to avoid data path hiccups (opt-out).
+ * Added NIC offloads for the PMD on Windows (TSO, VLAN strip, CRC keep).
+
+* **Updated Solarflare network PMD.**
+
+ Updated the Solarflare ``sfc_efx`` driver with changes including:
+
+ * Added port representors support on SN1000 SmartNICs
* **Updated Marvell cnxk crypto PMD.**
* Added Transport mode support in lookaside protocol (IPsec) for CN10K.
* Added UDP encapsulation support in lookaside protocol (IPsec) for CN10K.
* Added support for lookaside protocol (IPsec) offload for CN9K.
+ * Added support for ZUC algorithm with 256-bit key length for CN10K.
+ * Added support for CN98xx dual block.
+ * Added inner checksum support in lookaside protocol (IPsec) for CN10K.
* **Added support for event crypto adapter on Marvell CN10K and CN9K.**
* Added DES-CBC, AES-XCBC-MAC, AES-CMAC and non-HMAC algo support.
* Added PDCP short MAC-I support.
+ * Added raw vector datapath API support.
* **Updated NXP dpaa2_sec crypto PMD.**
* Added PDCP short MAC-I support.
+ * Added raw vector datapath API support.
+
+* **Updated the ACC100 bbdev PMD.**
+
+ Added support for more comprehensive CRC options.
+
+* **Updated the turbo_sw bbdev PMD.**
+
+ Added support for more comprehensive CRC options.
+
+* **Added NXP LA12xx baseband PMD.**
+
+ * Added a new baseband PMD driver for NXP LA12xx Software defined radio.
+ * See the :doc:`../bbdevs/la12xx` for more details.
+
+* **Updated IPsec library.**
+
+ * Added support for more AEAD algorithms AES_CCM, CHACHA20_POLY1305
+ and AES_GMAC.
+ * Added support for NAT-T / UDP encapsulated ESP.
+ * Added support for SA telemetry.
+ * Added support for setting a non default starting ESN value.
* **Added multi-process support for testpmd.**
Added command-line options to specify total number of processes and
current process ID. Each process owns subset of Rx and Tx queues.
+* **Updated test-crypto-perf application with new cases.**
+
+ * Added support for asymmetric crypto throughput performance measurement.
+ Only modex is supported for now.
+ * Added support for lookaside IPsec protocol offload throughput measurement.
+
+* **Added lookaside protocol (IPsec) tests in dpdk-test.**
+
+ * Added known vector tests (AES-GCM 128, 192, 256).
+ * Added tests to verify error reporting with ICV corruption.
+ * Added tests to verify IV generation.
+ * Added tests to verify UDP encapsulation.
+ * Added tests to verify UDP encapsulation ports.
+ * Added tests to validate packets soft expiry.
+ * Added tests to validate packets hard expiry.
+ * Added tests to verify tunnel header verification in IPsec inbound.
+ * Added tests to verify inner checksum.
+
Removed Items
-------------
blacklist/whitelist are removed. Users must use the new
block/allow list arguments.
+* mbuf: Removed offload flag ``PKT_RX_EIP_CKSUM_BAD``.
+ ``PKT_RX_OUTER_IP_CKSUM_BAD`` should be used as a replacement.
+
+* ethdev: Removed the port mirroring API. A more fine-grain flow API
+ action ``RTE_FLOW_ACTION_TYPE_SAMPLE`` should be used instead.
+ The structures ``rte_eth_mirror_conf`` and ``rte_eth_vlan_mirror`` and
+ the functions ``rte_eth_mirror_rule_set`` and
+ ``rte_eth_mirror_rule_reset`` along with the associated macros
+ ``ETH_MIRROR_*`` are removed.
+
+* ethdev: Removed ``rte_eth_rx_descriptor_done`` API function and its
+ driver callback. It is replaced by the more complete function
+ ``rte_eth_rx_descriptor_status``.
+
+* ethdev: Removed deprecated ``shared`` attribute of the
+ ``struct rte_flow_action_count``. Shared counters should be managed
+ using indirect actions API (``rte_flow_action_handle_create`` etc).
+
+* i40e: Removed i40evf driver.
+ iavf already became the default VF driver for i40e devices,
+ so there is no need to maintain i40evf.
+
API Changes
-----------
Also, make sure to start the actual text at the margin.
=======================================================
+* kvargs: The experimental function ``rte_kvargs_strcmp()`` has been
+ removed. Its usages have been replaced by a new function
+ ``rte_kvargs_get_with_value()``.
+
+* mempool: Added ``RTE_MEMPOOL_F_NON_IO`` flag to give a hint to DPDK components
+ that objects from this pool will not be used for device IO (e.g. DMA).
+
+* mempool: The mempool flags ``MEMPOOL_F_*`` will be deprecated in the future.
+ Newly added flags with ``RTE_MEMPOOL_F_`` prefix should be used instead.
+
+* mempool: Helper macro ``MEMPOOL_HEADER_SIZE()`` is deprecated.
+ The replacement macro ``RTE_MEMPOOL_HEADER_SIZE()`` is internal only.
+
+* mempool: Macro to register mempool driver ``MEMPOOL_REGISTER_OPS()`` is
+ deprecated. Use replacement ``RTE_MEMPOOL_REGISTER_OPS()``.
+
+* mempool: The mempool API macros ``MEMPOOL_PG_*`` are deprecated and
+ will be removed in DPDK 22.11.
+
+* net: Renamed ``s_addr`` and ``d_addr`` fields of ``rte_ether_hdr`` structure
+ to ``src_addr`` and ``dst_addr``, respectively.
+
+* ethdev: Added item ``PORT_REPRESENTOR`` to flow API.
+
* cryptodev: The API rte_cryptodev_pmd_is_valid_dev is modified to
rte_cryptodev_is_valid_dev as it can be used by the application as
well as PMD to check whether the device is valid or not.
as it is for drivers only and should be private to DPDK, and not
installed for app use.
+* cryptodev: A ``reserved`` byte from structure ``rte_crypto_op`` was
+ renamed to ``aux_flags`` to indicate warnings and other information from
+ the crypto/security operation. This field will be used to communicate
+ events such as soft expiry with IPsec in lookaside mode.
+
+* cryptodev: The field ``dataunit_len`` of the ``struct rte_crypto_cipher_xform``
+ moved to the end of the structure and extended to ``uint32_t``.
+
+* cryptodev: The structure ``rte_crypto_vec`` was updated to add ``tot_len``
+ field to support total buffer length to facilitate protocol offload case.
+
+* cryptodev: The structure ``rte_crypto_sym_vec`` was updated to add
+ ``dest_sgl`` to support out of place processing.
+
+* bbdev: Added device info related to data byte endianness processing.
+
ABI Changes
-----------
Also, make sure to start the actual text at the margin.
=======================================================
+* ethdev: Input parameters for ``eth_rx_queue_count_t`` was changed.
+ Instead of pointer to ``rte_eth_dev`` and queue index, now it accepts pointer
+ to internal queue data as input parameter. While this change is transparent
+ to user, it still counts as an ABI change, as ``eth_rx_queue_count_t``
+ is used by public inline function ``rte_eth_rx_queue_count``.
+
+* ethdev: Made ``rte_eth_dev``, ``rte_eth_dev_data``, ``rte_eth_rxtx_callback``
+ private data structures. ``rte_eth_devices[]`` can't be accessed directly
+ by user any more. While it is an ABI breakage, this change is intended
+ to be transparent for both users (no changes in user app is required) and
+ PMD developers (no changes in PMD is required).
+
* security: ``rte_security_set_pkt_metadata`` and ``rte_security_get_userdata``
routines used by inline outbound and inline inbound security processing were
made inline and enhanced to do simple 64-bit set/get for PMDs that do not
have much processing in PMD specific callbacks but just 64-bit set/get.
This avoids a per packet function pointer jump overhead for such PMDs.
+* security: A new option ``iv_gen_disable`` was added in structure
+ ``rte_security_ipsec_sa_options`` to disable IV generation inside PMD,
+ so that application can provide its own IV and test known test vectors.
+
+* security: A new option ``tunnel_hdr_verify`` was added in structure
+ ``rte_security_ipsec_sa_options`` to indicate whether outer header
+ verification need to be done as part of inbound IPsec processing.
+
+* security: A new option ``udp_ports_verify`` was added in structure
+ ``rte_security_ipsec_sa_options`` to indicate whether UDP ports
+ verification need to be done as part of inbound IPsec processing.
+
+* security: A new structure ``rte_security_ipsec_lifetime`` was added to
+ replace ``esn_soft_limit`` in IPsec configuration structure
+ ``rte_security_ipsec_xform`` to allow applications to configure SA soft
+ and hard expiry limits. Limits can be either in number of packets or bytes.
+
+* security: The new options ``ip_csum_enable`` and ``l4_csum_enable`` were added
+ in structure ``rte_security_ipsec_sa_options`` to indicate whether inner
+ packet IPv4 header checksum and L4 checksum need to be offloaded to
+ security device.
+
+* security: A new structure ``esn`` was added in structure
+ ``rte_security_ipsec_xform`` to set an initial ESN value. This permits
+ application to start from an arbitrary ESN value for debug and SA lifetime
+ enforcement purposes.
+
+* security: A new structure ``udp`` was added in structure
+ ``rte_security_ipsec_xform`` to allow setting the source and destination ports
+ for UDP encapsulated IPsec traffic.
+
+* bbdev: Added capability related to more comprehensive CRC options,
+ shifting values of the ``enum rte_bbdev_op_ldpcdec_flag_bitmasks``.
+
Known Issues
------------
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