A new function ``rte_pktmbuf_alloc_bulk()`` has been added to allow the user
to allocate a bulk of mbufs.
+* **Added device link speed capabilities.**
+
+ The structure ``rte_eth_dev_info`` has now a ``speed_capa`` bitmap, which
+ allows the application to know the supported speeds of each device.
+
+* **Added bitmap of link speeds to advertise.**
+
+ Allow defining a set of advertised speeds for auto-negotiation,
+ explicitly disabling link auto-negotiation (single speed)
+ and full auto-negotiation.
+
+* **Added new poll-mode driver for Amazon Elastic Network Adapters (ENA).**
+
+ The driver operates variety of ENA adapters through feature negotiation
+ with the adapter and upgradable commands set.
+ ENA driver handles PCI Physical and Virtual ENA functions.
+
+* **Restored vmxnet3 Tx data ring.**
+
+ Tx data ring has been shown to improve small pkt forwarding performance
+ on vSphere environment.
+
+* **Added vmxnet3 Tx L4 checksum offload.**
+
+ Support TCP/UDP checksum offload.
+
+* **Added vmxnet3 TSO support.**
+
+* **Added vmxnet3 support for jumbo frames.**
+
+ Added support for linking multi-segment buffers together to
+ handle Jumbo packets.
+
* **Virtio 1.0.**
Enabled virtio 1.0 support for virtio pmd driver.
* **Added vhost-user live migration support.**
+* **Added vhost driver.**
+
+ Added virtual PMD that wraps librte_vhost.
+
+* **Added multicast promiscuous mode support on VF for ixgbe.**
+
+ Added multicast promiscuous mode support on ixgbe VF driver. So all the VFs
+ can receive the multicast packets.
+
+ Please note if we want to use this promiscuous mode, we need both PF and VF
+ driver to support it. The reason is this VF feature is configured on PF.
+ If use kernel PF driver + dpdk VF driver, make sure kernel PF driver support
+ VF multicast promiscuous mode. If use dpdk PF + dpdk VF, better make sure PF
+ driver is the same version as VF.
+
* **Added support for E-tag on X550.**
E-tag is defined in 802.1br. Please reference
default VxLAN port number is 4789 but this can be updated
programmatically.
+* **Added new X550EM_a devices.**
+
+ Added new X550EM_a devices and their mac types, X550EM_a and X550EM_a_vf.
+ Updated the code to use the new devices and mac types.
+
+* **Added x550em_x V2 device support.**
+
+ Only x550em_x V1 was supported before. Now V2 is supported.
+ A mask for V1 and V2 is defined and used to support both.
+
+* **Supported link speed auto-negotiation on X550EM_X**
+
+ Normally the auto-negotiation is supported by FW. SW need not care about
+ that. But on x550em_x, FW doesn't support auto-neg. As the ports of x550em_x
+ are 10G, if we connect the port with a peer which is 1G, the link will always
+ be down.
+ We added the support of auto-neg by SW to avoid this link down issue.
+
+* **Added sw-firmware sync on X550EM_a.**
+
+ Added support for sw-firmware sync for resource sharing.
+ Use the PHY token, shared between sw-fw for PHY access on X550EM_a.
+
+* **Updated the i40e base driver.**
+
+ The i40e base driver was updated with changes including the
+ following:
+
+ * Use Rx control AQ commands to read/write Rx control registers.
+ * Add new X722 device IDs, and removed X710 one was never used.
+ * Expose registers for HASH/FD input set configuring.
+
* **Enabled PCI extended tag for i40e.**
It enabled extended tag by checking and writing corresponding PCI config
space bytes, to boost the performance. In the meanwhile, it deprecated the
legacy way via reading/writing sysfile supported by kernel module igb_uio.
+* **Added i40e support for setting mac addresses.**
+
+* **Added dump of i40e registers and EEPROM.**
+
* **Supported ether type setting of single and double VLAN for i40e**
+* **Added VMDQ DCB mode in i40e.**
+
+ Added support for DCB in VMDQ mode to i40e driver.
+
+* **Added i40e VEB switching support.**
+
+* **Added Flow director enhancements in i40e.**
+
+* **Added PF reset event reporting in i40e VF driver.**
+
+* **Added fm10k Rx interrupt support.**
+
+* **Optimized fm10k Tx.**
+
+ * Free multiple mbufs at a time to reduce freeing mbuf cycles.
+
+* **Handled error flags in fm10k vector Rx.**
+
+ Parse err flags in Rx desc and set error bits in mbuf with vector instructions.
+
+* **Added fm10k FTAG based forwarding support.**
+
+* **Added mlx5 flow director support.**
+
+ Added flow director support (RTE_FDIR_MODE_PERFECT and
+ RTE_FDIR_MODE_PERFECT_MAC_VLAN).
+
+ Only available with Mellanox OFED >= 3.2.
+
+* **Added mlx5 RX VLAN stripping support.**
+
+ Added support for RX VLAN stripping.
+
+ Only available with Mellanox OFED >= 3.2.
+
+* **Added mlx5 link up/down callbacks.**
+
+ Implemented callbacks to bring link up and down.
+
+* **Added mlx5 support for operation in secondary processes.**
+
+ Implemented TX support in secondary processes (like mlx4).
+
+* **Added mlx5 RX CRC stripping configuration.**
+
+ Until now, CRC was always stripped. It can now be configured.
+
+ Only available with Mellanox OFED >= 3.2.
+
+* **Added mlx5 optional packet padding by HW.**
+
+ Added an option to make PCI bus transactions rounded to multiple of a
+ cache line size for better alignment.
+
+ Only available with Mellanox OFED >= 3.2.
+
+* **Added mlx5 TX VLAN insertion support.**
+
+ Added support for TX VLAN insertion.
+
+ Only available with Mellanox OFED >= 3.2.
+
+* **Changed szedata2 type of driver from vdev to pdev.**
+
+ Previously szedata2 device had to be added by ``--vdev`` option.
+ Now szedata2 PMD recognises the device automatically during EAL
+ initialization.
+
+* **Added szedata2 functions for setting link up/down.**
+
+* **Added szedata2 promiscuous and allmulticast modes.**
+
+* **Added af_packet dynamic removal function.**
+
+ Af_packet device can now be detached using API, like other PMD devices.
+
* **Increased number of next hops for LPM IPv4 to 2^24.**
The next_hop field is extended from 8 bits to 24 bits for IPv4.
Added new Crypto PMD to support null crypto operations in SW.
+* **Improved IP Pipeline Application.**
+
+ The following features have been added to ip_pipeline application;
+
+ * Added CPU utilization measurement and idle cycle rate computation.
+ * Added link idenfication support through existing port-mask option or by
+ specifying PCI device in every LINK section in the configuration file.
+ * Added load balancing support in passthrough pipeline.
+
* **Added IPsec security gateway example.**
New application implementing an IPsec Security Gateway.
Drivers
~~~~~~~
+* **ethdev: Fixed overflow for 100Gbps.**
+
+ 100Gbps in Mbps (100000) was exceeding 16-bit max value of ``link_speed``
+ in ``rte_eth_link``.
+
* **ethdev: Fixed byte order consistency between fdir flow and mask.**
Fixed issue in ethdev library that the structure for setting
table that gets overwritten by subsequent port 1's part of the RSS
table due to incorrect size allocated for each entry in the table.
+* **cxgbe: Fixed setting wrong device MTU.**
+
+ Fixed an incorrect device MTU being set due to ethernet header and
+ CRC lengths being added twice.
+
+* **ixgbe: Fixed zeroed VF mac address.**
+
+ Resolved an issue where VF mac address is zeroed out in cases where the VF
+ driver is loaded while the PF interface is down.
+ The solution is to only set it when we get an ACK from the PF.
+
+* **ixgbe: Fixed setting flow director flag twice.**
+
+ Resolved an issue where packets were being dropped when switching to perfect
+ filters mode.
+
+* **ixgbe: Set MDIO speed after MAC reset.**
+
+ The MDIO clock speed must be reconfigured after the MAC reset. The MDIO clock
+ speed becomes invalid, therefore the driver reads invalid PHY register values.
+ The driver now set the MDIO clock speed prior to initializing PHY ops and
+ again after the MAC reset.
+
+* **ixgbe: Fixed maximum number of available TX queues.**
+
+ In IXGBE, the maximum number of TX queues varies depending on the NIC operating
+ mode. This was not being updated in the device information, providing
+ an incorrect number in some cases.
+
+* **i40e: Generated MAC address for each VFs.**
+
+ It generates a MAC address for each VFs during PF host initialization,
+ and keeps the VF MAC address the same among different VF launch.
+
+* **i40e: Fixed failure of reading/writing Rx control registers.**
+
+ Fixed i40e issue of failing to read/write rx control registers when
+ under stress with traffic, which might result in application launch
+ failure.
+
+* **i40e: Enabled vector driver by default.**
+
+ Previously, vector driver is disabled by default as it cannot fill packet type
+ info for l3fwd to work well. Now there is an option for l3fwd to analysis
+ packet type softly, so enable vector driver by default.
+
+* **i40e: Fixed link info of VF.**
+
+ Previously, the VF's link speed kept as 10G and status always was up.
+ It did not change even the physical link's status changed.
+ Now this issue is fixed to make VF's link info consistent with physical link.
+
+* **mlx5: Fixed possible crash during initialization.**
+
+ A crash could occur when failing to allocate private device context.
+
+* **mlx5: Added port type check.**
+
+ Done to prevent port initialization on non-Ethernet link layers and
+ to report an error.
+
+* **mlx5: Applied VLAN filtering to broadcast and IPv6 multicast flows.**
+
+ Prevented reception of multicast frames outside of configured VLANs.
+
+* **mlx5: Fixed RX checksum offload in non L3/L4 packets.**
+
+ Fixed report of bad checksum for packets of unknown type.
+
* **aesni_mb: Fixed wrong return value when creating a device.**
cryptodev_aesni_mb_init() was returning the device id of the device created,
Fix crc32c hash functions to return a valid crc32c value for data lengths
not multiple of 4 bytes.
+* **hash: Fixed hash library to support multi-process mode.**
+
+ Fix hash library to support multi-process mode, using a jump table,
+ instead of storing a function pointer to the key compare function.
+ Multi-process mode only works with the built-in compare functions,
+ however a custom compare function (not in the jump table) can only
+ be used in single-process mode.
+
+* **lpm: Fixed return value when allocating an existing object.**
+
+ Changed the ``rte_lpm*_create()`` functions to return ``NULL`` and set
+ ``rte_errno`` to ``EEXIST`` when the object name already exists. This is
+ the behavior described in the API documentation in the header file.
+ The previous behavior was to return a pointer to the existing object in
+ that case, preventing the caller to know if the object had to be freed
+ or not.
+
+* **librte_port: Fixed segmentation fault for ring and ethdev writer nodrop.**
+
+ Fixed core dump issue on txq and swq when dropless is set to yes.
+
Examples
~~~~~~~~
+* **l3fwd-power: Fixed memory leak for non-IP packet.**
+
+ Fixed issue in l3fwd-power where, on receiving packets of types
+ other than IPv4 or IPv6, the mbuf was not released, and caused
+ a memory leak.
+
+* **l3fwd: Fixed using packet type blindly.**
+
+ l3fwd makes use of packet type information without even query if devices or PMDs
+ really set it. For those don't set ptypes, add an option to parse it softly.
+
* **examples/vhost: Fixed frequent mbuf allocation failure.**
vhost-switch often fails to allocate mbuf when dequeue from vring because it
* Add a short 1-2 sentence description of the API change. Use fixed width
quotes for ``rte_function_names`` or ``rte_struct_names``. Use the past tense.
+* The ethdev statistics counter imissed is considered to be independent of ierrors.
+ All drivers are now counting the missed packets only once, i.e. drivers will
+ not increment ierrors anymore for missed packets.
+
+* The ethdev structure ``rte_eth_dev_info`` was changed to support device
+ speed capabilities.
+
+* The ethdev structures ``rte_eth_link`` and ``rte_eth_conf`` were changed to
+ support the new link API.
+
* The functions ``rte_eth_dev_udp_tunnel_add`` and ``rte_eth_dev_udp_tunnel_delete``
have been renamed into ``rte_eth_dev_udp_tunnel_port_add`` and
``rte_eth_dev_udp_tunnel_port_delete``.
* A parameter ``vlan_type`` has been added to the function
``rte_eth_dev_set_vlan_ether_type``.
+* AF_packet device init function is no longer public. Device should be attached
+ with API.
+
* The LPM ``next_hop`` field is extended from 8 bits to 24 bits for IPv4
while keeping ABI compatibility.
* The RETA entry size in ``rte_eth_rss_reta_entry64`` has been increased
from 8-bit to 16-bit.
+* The ethdev flow director structure ``rte_eth_fdir_flow`` structure was
+ changed. New fields were added to extend flow director's input set.
+
* The cmdline buffer size has been increase from 256 to 512.