CIFS_SMB_DIRECT not set in Kernel

[Janos66]

Hi,

I just noticed that CIFS_SMB_DIRECT isn't enabled in the Kubuntu kernel.
I have no problem transferring data via RDMA in Windows and other Linux distros.
It would be a shame if this doesn't work in Kubuntu without the hassle of building a custom kernel.

cat /boot/config-6.17.0-5-generic | grep CONFIG_CIFS_SMB_DIRECT
# CONFIG_CIFS_SMB_DIRECT is not set


Creating a software SoftiWarp interface might be necessary on all systems with non server grade network interfaces to enable RDMA transport capabilities.
This will also require that the siw (SoftiWarp) kernel module is loaded.

[claydoh]

There is no Kubuntu kernel, since Kubuntu is Ubuntu.

I can't say why this isn't enabled, as I can't locate a mention of it in relation to ubuntu at all so far.
Maybe kSMBd is preferred for this now that it is the kernel? I don't know.

But you would find more helpful info asking the kernel team. https://wiki.ubuntu.com/Kernel or maybe on Ubuntu's Discourse.