Thanks so much for the question let me see if I can get the right guys on this one.
Just to let you know that only SRP-Initiator is included in MLNX_OFED for Linux (1.5.3 & 2.0), which is actually based on open source from OpenFabrics, however, this package does not include an SRP Target. It’s within the storage-vendor provider's responsibility to supply, support and ensure SRP target is fully
compatible with OpenFabrics. This may explain the problem you encountered.