Both kernel and user-space support are needed. On the kernel side, you must enable vDPA-related options (e.g., CONFIG_VDPA and/or CONFIG_VHOST_VDPA) to provide the necessary infrastructure. On the user-space side, binaries that interact with VirtIO devices must be updated to take advantage of this support. For example, QEMU needs to be built with vDPA support so that virtual machines can offload packet processing to the hardware accelerator. Additionally, tools like libvirt or other management utilities might require adjustments to properly configure and utilize vDPA-enabled devices.

PR https://github.com/vyos/vyos-build/pull/916

@daniel.arconada are you able to test it with the next rolling release? Those options will be included.

@daniel.arconada are you able to test it with the next rolling release? Those options will be included.

@Viacheslav Yes, I will test it once it is included in the next rolling release.

@daniel.arconada can you check this? The latest rolling has these modules.

vyos@vpp-left:~$ zcat /proc/config.gz | grep -i vdpa
CONFIG_VIRTIO_VDPA=m
CONFIG_VDPA=m
# CONFIG_VDPA_USER is not set
# CONFIG_MLX5_VDPA_NET is not set
# CONFIG_MLX5_VDPA_STEERING_DEBUG is not set
# CONFIG_VP_VDPA is not set
# CONFIG_ALIBABA_ENI_VDPA is not set
# CONFIG_SNET_VDPA is not set
CONFIG_VHOST_VDPA=m
vyos@vpp-left:~$ 
vyos@vpp-left:~$ show ver
Version:          VyOS 1.5-rolling-202503020018

Did you have a chance to testing ?

Has anyone tested this?