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
* **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 fm10k vector RX/TX.**
* **Added fm10k TSO support for both PF and VF.**
Fixed issue when releasing null control queue.
+* **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.
Libraries
~~~~~~~~~
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.
+
Examples
~~~~~~~~
* The ethdev flow director entries for SCTP were changed.
It was already done in 2.1 for CONFIG_RTE_NEXT_ABI.
+* 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.