Mellanox Windows 64-bit Server Operating System drivers for Mellanox ConnectX-4 Lx and ConnectX-4 Ethernet adapters.

Fixes
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- Fixed an issue which led to a false report of event log Error Number 66.
- Fixed an error message on bad command line arguments.
- Fixed an issue which caused the link speed to be persistent over machine reboots when setting it using mlx5cmd.
- Fixed a wrong RSS hash calculation for encapsulated traffic which led to the wrong usage of RSS CPUs.
- Fixed an issue which caused the driver to request more resources from the OS than it actually requires.
- Fixed an issue which prevented adapters with customized device description containing a back slash character not to have counter instances in perfmon.
- Fixed an issue which cause the driver unload process on a machine with many adapter cards to take longer than required.
- Fixed an issue which prevented VxlanUDPPortNumber update from the driver "Advance properties" tab.
- Fixed an issue where changing the priority on a server while running SMB Direct traffic could cause a blue screen (BSOD).
- Fixed an issue in Windows Server 2016 which caused a PowerShell query to get stuck and cause the installer to hang.
- Fixed an issue which caused some connections to fail if the IP source port requested was 0 when running many concurrent ND or NDK connections.
- Removed the 'VPI' from Network Device's description. The Network Device's description is now 'Mellanox ConnectX-4 Adapter' instead of 'Mellanox ConnectX-4 VPI Adapter'.
- Fixed an issue causing VMQ VMs multicast traffic to be duplicated when traffic ran on the same physical host.
- Fixed a BSOD issue when NDK consumers posted to a Queue Pair more work requests than the Queue Pair's size without polling for completions.
- Fixed an issue causing Virtual Machines' incoming and outgoing tagged traffic to be dropped by the internal eSwitch when QoS policy traffic classes were customized by the user (using, for example, TCP port or EtherType).
- Fixed an issue that caused VLAN priority tagging (IEEE 802.1p class of service) not to be added into RDMA packets when VLAN ID is set to 0 (no VLAN).
- Fixed an issue that resulted in the message below when enabling/disabling ECN and causing the driver to perform a miniport reset.
"FW command fails. op 0x822, status 0x3, errno -22, syndrome 0x507ee9"
"mstdump %SystemRoot%\Temp\.log was created after fatal error"

Enhancements
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RoCEv2 Congestion Management (RCM):
- Switches running ECN will report congestion to the sources using CNP messages. The sources (Host), in turn, react by throttling down their injection rates, thus preventing congestion in the fabric.
DCBX:
- Added support for Data Center Bridging Exchange Protocol at GA level
Receive Path Activity Monitoring:
- Monitors the devices status continuously tot when the receive pipeline is stalled for a period longer than a pre-configured timeout.
Performance:
- Optimized MSI-X interrupt vectors usage to enable efficient work on machines with high core counts.