Changes and New Features



Connection per Second (CPS) Improvements

Made CPS performance improvements for Hardware TLS offload.

NGINX Crash Recovery

Added the ability to continue forking new child processes in NGINX application even when a crash takes place. The number of new processes that can be created in a crash scenario is set using XLIO_NGINX_WORKERS_NUM.

Bug Fixes

See Bug Fixes section.


We recommend using libnl3 as it is the latest version and includes fixes related to libnl1.


Bonding Active-Backup not supported.
RoCE LAG is a feature meant for mimicking Ethernet bonding for IB devices and is available for dual-port cards only. XLIO cannot offload traffic in cases where RoCE LAG is enabled too. In RoCE LAG mode, instead of having an IB device per physical port (for example, mlx5_0 and mlx5_1), only one IB device is present for both ports.


Direct Packet Control Plane (DPCP) provides a unified, flexible interface for programming NVIDIA NICs and comes as part of OFED. The DPCP version must be v1.1.26 and above.


A note regarding NGINX:

  • There is no recovery support of NGINX wrk due to a crash of one or more wrks.


TLS Rx offload related notes:

  • TLS Rx offload supports up to 64K concurrent connection

  • TLS Rx offload for IPv6 is not supported as it may cause unexpected behavior

  • TLS Rx offload requires OpenSSL 3.0.2 or higher and kTLS support from the kernel

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