Hi,

I'm trying to test the recently merged siw module.
I'm running kernel 5.3-rc5 (taken from the Ubuntu mainline-kernel
repository [1]) on Ubuntu 18.04 (bionic).
I also manually installed rdma-core 25.0 from tarball, using the
included Debian packaging. I installed all the packages but ibacm.

After booting the new kernel I manually loaded the kernel module by

     modprobe siw
     modprobe rdma_ucm

Then ibv_devinfo shows: "No IB devices found".
dmesg only shows:
     [   29.856751] SoftiWARP attached

According to this tutorial, [2] it should be enough to just load the siw
module. (unlike RXE, where one needs to use rxe_cfg to set up the
interface)
Is this a bug in siw or just a configuration issue on my side?

Thanks,
Marcin

[1] https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.3-rc5/
[2] https://budevg.github.io/posts/tutorials/2017/04/29/rdma-101-1.html