Enabling RoCE in FreeBSD 12.0-STABLE

Thu Apr 2 20:43:06 UTC 2020

Hello,

I am currently trying to configure my FreeBSD 12.0 system to use RoCE to interface with an ATTO bridge that is connected to a couple of tape drives. Everything I have found points toward using iSER or Infiniband to implement RDMA; I would not like to use these. Has anyone successfully configured FreeBSD to use RoCE? I have not made any progress, as I am not sure where to start.

OS: FreeBSD 12.0-STABLE

NIC: Mellanox MCX414A-GCAT

Bridge: ATTO XstreamCORE ET 8200T

Drives: IBM Ultrium HH LTO7 SAS

Any advice on how to implement this would be much appreciated.

Thank you,