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Linux Kernel: OpenVPN and ENQCMD

Submitted by Roy Schestowitz on Tuesday 21st of September 2021 11:40:08 AM Filed under
Linux
  • OpenVPN DCO Linux Kernel Module Aims To Offer Faster VPN Performance - Phoronix

    OpenVPN has been implementing a kernel module for data channel offload (DCO) capabilities to enhance the performance of this virtual private network system.

    OpenVPN DCO aims to provide a much faster VPN implementation by leveraging data encryption backed by AES-NI in kernel space to avoid the context switching overhead from OpenVPN currently in user-space. The OpenVPN DCO kernel module handles the OpenVPN data channel in kernel-space and provides higher throughput and lower latency. Further helping the performance is this new implementation having multi-threaded encryption.

  • Intel Posts New Linux Patches Looking To Re-Enable ENQCMD Ahead Of Sapphire Rapids - Phoronix

    While Intel is normally quite good with their new hardware support being in good shape well ahead of launch, their new code for supporting the ENQCMD functionality for the Data Streaming Accelerator (DSA) with Xeon "Sapphire Rapids" has been an exception. This summer the mainline Linux kernel disabled ENQCMD support since the code was "broken beyond repair" while now Intel engineers have sent out a new series looking to get it re-enabled.

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