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NVIDIA Preparing Their Linux InfiniBand Driver For 800Gb/s XDR

Written by Michael Larabel in NVIDIA on 20 September 2023 at 06:23 AM EDT. 5 Comments

NVIDIA's latest patches intended for the upstream Linux kernel are over on the networking side of the house with their Mellanox wares as they prepare 800Gb/s (XDR) support within the RDMA/InfiniBand code.

A set of six patches were posted today and hoped for Linux 6.7 in plumbing the 800Gb/s (XDR speed) support into the InfiniBand core networking code and working through their Mellanox MLX5 driver for exposing the 800Gb/s speed.

The NVIDIA Mellanox Skyway GA100 InfiniBand to Ethernet Gateway appears to be the first product so far from the company that is capable of the XDR speeds.

NVIDIA 800 Gb/s networking

More details on the 800Gb/s (XDR) speed preparations for the Linux kernel's InfiniBand code can be found via this patch series.

5 Comments

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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.