Mellanox Linux Driver Source code for Mellanox ConnectX-3, ConnectX-3 Pro, ConnectX-4 Lx, ConnectX-4 and ConnectX-5 Ethernet adapters.

Fixes:
- Added support for multi-host connection on mstflint mstfwreset
- Removed the following prints on server shutdown: mlx5_core 0005:81:00.1: mlx5_enter_error_state:96:(pid1): start mlx5_core 0005:81:00.1: mlx-5_enter_error_state:109:(pid1): end
- Fixed the issue of when bringing mlx4/mlx5 devices up or down, a call trace in nvme_rdma_remove_one or nvmet_rdma_remove_one may occur.
- Fixed an issue where 4K UD packets were dropped when working with 4K MTU on mlx4 devices.
- Added support for VLAN Tag (VST) creation on RedHat v7.4 with new iproute2 packages (iptool).
- Enabled RDMA CM to honor incoming requests coming from ports of different devices.
- Fixed an issue where sending Work Requests (WRs) with multiple entries where the first entry is less than 18 bytes used to fail
- Fixed the issue of when the interface was down, ethtool counters ceased to increase. As a result, RoCE traffic counters were not always counted.
- Fixed compilation errors of MLNX_EN over kernel when CONFIG_PTP_1588_CLOCK parameter was not set.
- Fixed an issue where the system used to hang when trying to allocate multiple device memory buffers from different processes simultaneously.

Enhancements:
- DSCP Trust Mode - Added support for automatically setting the number of TC
to 8 when the Trust state is changed to DSCP.
- Receive Buffer - Added xon and xoff columns to the Receive Buffer configuration display.
- Added support for adaptive Tx, which optimizes the moderation values of the Tx CQs on runtime for maximum throughput with minimum CPU overhead. This mode is enabled by default
- Updated Adaptive Rx to ignore ACK packets so that queues that only handle ACK packets remain with the default moderation.
- Added a new mechanism for the device FW/HW to log important events into the event tracing system (/sys/kernel/debug/tracing) without requiring any Mellanox-specific tool. Note: This feature is enabled by default.
- Added support for C-tag (0x8100) VLAN insertion to tagged packets in VST mode.
- Added support for Mellanox Accelerated Switching And Packet Processing (ASAP2) technology, which allows OVS offloading by handling OVS data-plane, while maintaining OVS control-plane unmodified. OVS Offload using ASAP2 technology provides significantly higher OVS performance without the associated CPU load. For further information, refer to ASAP2 Release Notes under www.mellanox.com -> Products -> Software -> ASAP2