New Features
------------
+* **Extended Statistics**
+
+ Define extended statistics naming scheme to store metadata in the name
+ string name of each statistic, refer to the Extended Statistics section
+ of the programmers guide. Implemented the extended stats API for these
+ PMDs:
+
+ * igb
+ * igbvf
+ * i40e
+ * i40evf
+ * fm10k
+ * virtio
+
* **Added API in ethdev to retrieve RX/TX queue information.**
* Add the ability for the upper layer to query RX/TX queue information.
* Virtio ring layout optimization (fixed avail ring)
* Vector RX
+ * Simple TX
* **Added vhost-user multiple queue support.**
+* **Added port hotplug support to vmxnet3.**
+
* **Added port hotplug support to xenvirt.**
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.
+
* **vhost: Fixed Qemu shutdown.**
Fixed issue with libvirt ``virsh destroy`` not killing the VM.
* 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.