Networking ConnectX-8 Firmware Release Notes
Networking ConnectX-8 Firmware Release Notes
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Changes and New Features

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

To generate PLDM packages for firmware updates, users must install and use the MFT version that corresponds with the respective firmware release.

Feature/Change

Description

40.50.1002

Dual Steering Multiplane Emulation Groups

Added a new capability to open two steering multiplane emulation groups.

To enable this feature, the following parameters must be applied in addition to the standard configuration required for multiplane emulation:

  • Port Mapping (Array[phy_port] = logical port number):

    • MODULE_SPLIT_M0[0..7] = 1, 2, 3, 4, 5, 6, 7, 8 (Respectively)

    • MODULE_SPLIT_M0[8..15] = FF

  • Physical Functions:

    • NUM_OF_PF = 8 (Note: NUM_PFS must equal the number of logical ports)

  • Plane Configuration (Note: NUM_PLANES must equal the number of logical ports on the plane group):

    • NUM_OF_PLANES_P1 = 4 (Logical port 1 has 4 planes, spanning logical ports 1-4)

    • NUM_OF_PLANES_P5 = 4 (Logical port 5 has 4 planes, spanning logical ports 5-8)

    • NUM_OF_PLANES_P# = 0 (For all other ports)

  • Load Balancing (Packet Steering):

    • LOAD_BALANCE_MODE_P1 = 3

    • LOAD_BALANCE_MODE_P5 = 3

Module Precoding Control

Module precoding control allows precoding to be enabled or disabled through PHY TLVs on both the host and the module, aligning NIC and module behavior with host PRM precoding control.

Modify-header Action Dependency

Added the missing source dependency check (SRC) for modify-header parallel actions, preventing odd actions from reading a field modified by the preceding even action.

FEC Alignment

FEC alignment is supported for lane speeds up to 100G per lane.

Copper Optics Linkup Mode Separation

Added the capability to separate copper links (DME-supported modules) and optics during the initial link-up flow.

For copper, link-up will be forced if the copper_init_force_linkup parameter is set in the INI/PRS. If this parameter is not set, the flow will use the existing AN behavior. Optics behavior remains unchanged and will continue to use AN.

25G SFP28 Support

ConnectX-8 now supports a single-lane 25G connection over an SFP28 port.

Bug Fixes

See Bug Fixes in this Firmware Version section.


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