NVIDIA WinOF-2 Documentation v25.7.50000

Changes and New Features

CategoryDescription
Rev 25.7.50000 (DRV 25.7.26882 )
GPU Direct Memory

[Alpha Level] Added support for GPU Direct Memory in the ND API. This enables users to run tests using GPU memory instead of host memory. Requires CUDA version 12.8 or higher.

For further information, see GPUDirect.

KDNET 2PF kernel Debug

Added support for official NDIS KDNET OIDs, allowing configuration of 2PF kernel-mode debugging using the kdnet.exe tool.

For instructions on downloading kdnet.exe and setting up 2PF kernel-mode debugging, see the WinOF-2 User Manual (Setting 2PF kernel-mode Debugging using kdnet) and the official Microsoft documentation on MSDN.

Interleaved FEC modes

Added support for interleaved FEC modes is ConnectX-7 and ConnectX-8. They can be viewed using the mlx5cmd -dbg -LinkFec command via ethtool.

The newly supported FEC types include:

  • ELL Interleaved – Interleaved_Ethernet_Consortium_LL_50G_RS_FEC (272,257+1)
  • RS FEC Interleaved – Interleaved_Standard_RS-FEC (544,514)
Bug FixesSee Bug Fixes in This Version.

© Copyright 2025, NVIDIA. Last updated on Sep 1, 2025.