Changes and New Features

Operating System & NIC Support

Added support for installing MLNX_OFED on top of ARM systems and ConnectX-5 adapter cards.

Operating System Support

Updated the MLNX_OFED driver to be able to build on top of kernel 5.4.87.

Bug Fixes

See “Bug Fixes" section.

Packet Pacing Support for Hairpin Queues

Added support for the user to set a packet pacing rate on the special queues that forward traffic from one physical port to the other.

Network Interface Connection Tracking Offload

Added support for Connection Tracking (TC) offload on network interfaces that are in NIC mode, as opposed to SwitchDev mode.

Note: This support is currently available for interfaces with physical functions only.

SMP MADs Limitation

Added support for limiting SMP MADs on the wire using a Send window mechanism. This allows the user to keep track of the outstanding number of SMP MADs per-port, and allows for limiting this number to shape traffic when the pace of SMP MADs requires control.

Sampling Action Direct Rule API Support

Added Direct Rule (DR) API support for sampling action to allow duplication and sampling of some ratio of the traffic. The API also allows to perform a set of different DR actions on the sampled traffic.

SA MAD Congestion Control

SA MAD Congestion Control feature is restored in MLNX_OFED v5.1-2.

MLX5DV_DR API Memory Consumption

MLX5DV_DR API Memory consumption was reduced by improving rule tracking algorithm in a more memory efficient way.

Bug Fixes

See “Bug Fixes" section.