New Features
------------
+* **Enabled freeing of ring.**
+
+ New function rte_ring_free() allows the user to free a ring
+ if it was created with rte_ring_create().
+
* **Extended Statistics**
Define extended statistics naming scheme to store metadata in the name
* igbvf
* i40e
* i40evf
+ * fm10k
+ * virtio
* **Added API in ethdev to retrieve RX/TX queue information.**
* **Added i40e vector RX/TX.**
+* **Added i40e Rx interrupt support.**
+
* **Added i40e flow control support.**
* **Added DCB support to i40e PF driver.**
+* **Added RSS/FD input set granularity on Intel X710/XL710.**
+
+* **Added different GRE key length for input set on Intel X710/XL710.**
+
+* **Added flow director support in i40e VF.**
+
* **Added fm10k vector RX/TX.**
* **Added fm10k TSO support for both PF and VF.**
* **Added vhost-user multiple queue support.**
+* **Added port hotplug support to vmxnet3.**
+
* **Added port hotplug support to xenvirt.**
in Intel I210 NIC, as EtherType in RX descriptor is in bits 8:10 of
Packet Type and not in the default bits 0:2.
+* **igb: Fixed VF start with PF stopped.**
+
+ VF needs the PF interrupt support initialized even if not started.
+
* **ixgbe: Fixed issue with X550 DCB.**
Fixed a DCB issue with x550 where for 8 TCs (Traffic Classes), if a packet
Fixed issue where a burst size less than 32 didn't receive anything.
+* **ixgbe: Fixed VF start with PF stopped.**
+
+ VF needs the PF interrupt support initialized even if not started.
+
* **i40e: Fixed base driver allocation when not using first numa node.**
Fixed i40e issue that occurred when a DPDK application didn't initialize
ports if memory wasn't available on socket 0.
+* **i40e: Fixed maximum of 64 queues per port.**
+
+ Fixed the issue in i40e of cannot supporting more than 64 queues per port,
+ though hardware actually supports that. The real number of queues may vary,
+ as long as the total number of queues used in PF, VFs, VMDq and FD does not
+ exceeds the hardware maximum.
+
+* **i40e: Fixed statistics of packets.**
+
+ Added discarding packets on VSI to the stats and rectify the old statistics.
+
+* **i40e: Fixed issue of not freeing memzone.**
+
+ Fixed the issue of not freeing memzone in the call to free the memory for
+ adminq DMA.
+
* **vhost: Fixed Qemu shutdown.**
Fixed issue with libvirt ``virsh destroy`` not killing the VM.
Fixed issue where an incorrect Cuckoo Hash key table size could be
calculated limiting the size to 4GB.
+* **hash: Fixed incorrect lookup if key is all zero.**
+
+ Fixed issue in hash library that occurred if an all zero
+ key was not added in the table and the key was looked up,
+ resulting in an incorrect hit.
+
+* **hash: Fixed thread scaling by reducing contention.**
+
+ Fixed issue in hash library where, using multiple cores with
+ hardware transactional memory support, thread scaling did not work,
+ due to the global ring that is shared by all cores.
+
Examples
~~~~~~~~
* The ethdev flow director entries for SCTP were changed.
It was already done in 2.1 for CONFIG_RTE_NEXT_ABI.
+* The ethdev flow director structure rte_eth_fdir_flow_ext structure is changed.
+ New fields are added to support flow director filtering in VF.
+
+* The size of the ethdev structure rte_eth_hash_filter_info is changed
+ by adding a new element rte_eth_input_set_conf in an union.
+
* The new fields rx_desc_lim and tx_desc_lim are added into rte_eth_dev_info
structure.
+* The maximum number of queues per port CONFIG_RTE_MAX_QUEUES_PER_PORT is
+ increased to 1024.
+
* The mbuf structure was changed to support unified packet type.
It was already done in 2.1 for CONFIG_RTE_NEXT_ABI.