Supporting an Upstream First Kernel Driver for HPC Fabrics

Learn about the evolution and challenges of the hfi1 driver for Omni-Path systems in this 34-minute technical talk from the OpenFabrics Alliance. Explore the journey from its initial placement in the kernel tree's staging location to mainline integration, including the development of the rdmavt driver. Discover how the driver transitioned from Intel's Fabric Suite (IFS) to Cornelis Networks' Omni-Path Express Suite (OPXS), and understand the challenges of using back-ported drivers with upstream kernel content. Gain insights into new approaches for delivering cutting-edge drivers that align more closely with specific Linux distributions while maintaining a commitment to upstream first development and open source principles.