I do have another question that you might not be able to answer. I've got a good build now that comes up with SoftRoCE and seems to partially work. I'm trying to do an rping between the Arria10 and a PC VM. Here's some info. I've loaded all the Infiniband stuff as modules:
I've got a good build for the arria10 now but having a small issue when I try to setup an rping. Here are my loaded modules:

root@arria10:/# lsmod
Module Size Used by
rdma_rxe 102400 0
rdma_ucm 28672 0
rdma_cm 53248 1 rdma_ucm
iw_cm 32768 1 rdma_cm
ib_cm 40960 1 rdma_cm
ib_uverbs 81920 1 rdma_ucm
ib_core 192512 6 rdma_rxe,ib_cm,rdma_cm,ib_uverbs,iw_cm,rdma_ucm

I can see the rxe_cfg stuff:

root@arria10:/# rxe_cfg status
Name Link Driver Speed NMTU IPv4_addr RDEV RMTU
eth0 yes st_gmac 1500 10.0.1.25

However, the RMTU is missing here and when I execute ibv_devices, I don't get an rxe0 device with a GUID like I should.

root@arria10:/# ibv_devices
device node GUID
------ ----------------

Do you know about why this would be? Is something missing?

Thanks,
FM