User Manual

Linux Kernel Upstream Release Notes v6.5

This User Manual describes installation, configuration and operation of NVIDIA® WinOF-2 driver. features, performance, diagnostic tools, content and configuration. Additionally, this document provides information on various performance tools supplied with this version.

NVIDIA® WinOF-2 is composed of several software modules that contain InfiniBand and Ethernet drivers. It supports 10, 25, 40, 50 or 100 Gb/s Ethernet, and DDR, FDR, EDR, HDR, or NDR InfiniBand network ports. The port type and speed are determined upon boot based on card capabilities and user settings.

The NVIDIA® WinOF-2 driver release introduces the following capabilities:

  • General capabilities:

    • Support for Single and Dual port Adapters

    • Receive Side Scaling (RSS)

    • Hardware Tx/Rx checksum offload

    • Large Send Offload (LSO)

    • UDP Segmentation Offload (USO)

    • Dynamic Interrupt Moderation

    • Support for MSI-X interrupts

    • Network Direct Kernel (NDK) with support for SMBDirect

    • Virtual Machine Queue (VMQ) for Hyper-V

    • Single Root I/O Virtualization (SR-IOV)

    • Receive Side Scaling

    • Checksum Offloads

    • Quality of Service (QoS)

      • Support for global flow control and Priority Flow Control (PFC)

      • Enhanced Transmission Selection (ETS)

  • Ethernet capabilities:

    • Receive Side Coalescing (RSC)

    • Hardware VLAN filtering

    • RDMA over Converged Ethernet

      • RoCE MAC Based (v1)

      • RoCE over UDP (v2)

    • VXLAN

    • NDKPI v2.0, v3.0

    • VMMQ

    • PacketDirect Provider Interface (PDPI)

    • NVGRE hardware encapsulation task offload

For the complete list of Ethernet and InfiniBand Known Issues and Limitations, refer to the latest Release Notes.

This manual is intended for system administrators responsible for the installation, configuration, management and maintenance of the software and hardware of Ethernet and InfiniBand adapter cards. It is also intended for application developers.

© Copyright 2023, NVIDIA. Last updated on May 23, 2023.