ConnectX-4 Adapter Cards Firmware Release Notes v12.27.1016

Changes and New Features

Warning

Security Hardening Enhancements: This release contains important reliability improvements and security hardening enhancements. Mellanox recommends upgrading your devices firmware to this release to improve the devices’ firmware security and reliability.

Warning

SR-IOV - Virtual Functions (VF) per Port - The maximum Virtual Functions (VF) per port is 127. For further information, see RoCE Limitations.

Feature/Change

Description

12.27.1016

RoCE Selective Repeat

RoCE Selective Repeat introduces a new QP retransmission mode in RoCE: recovery from packet drop by resending the dropped packet and not only all the PSN window (Go-Back-N protocol),This new capability comes with the following limitations:

  • Selective repeat cannot be used with AR

  • Does not work with signature (T10-DIF)

  • Does not work with Tag Matching enabled

RedFish (RDE)

Allows BMC to query and control NIC over RedFish API (https://www.dmtf.org/standards/redfish). Currently, the NIC supports reading data and setting basic Ethernet and InfiniBand parameters.

ECMP with RoCE Traffic

Enables matching of source_vhca_port in the FDB flow for ECMP hardware offload on a single FDB

Hardware Offloaded Rules (Resource Dump)

Added support for dumping hardware steering entries (raw data) using the resource dump API

Link Down Counter

The eth_link_down_counter now counts logical link downs as well.

Bug Fixes

See Bug Fixes

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