ib0: error fetching interface information: Device not found

Hi

I have a Infiniband controller: Mellanox Technologies MT27600 [Connect-IB] in HP blades running CentOS6.8

ifconfig ib0 keeps giving the error “fetching interface information: Device not found”

I restarted the rdma service with no luck.

#service rdma status

Low level hardware support loaded:

mlx5_ib mlx5_core

Upper layer protocol modules:

ib_ipoib

User space access modules:

rdma_ucm ib_ucm ib_uverbs ib_umad

Connection management modules:

rdma_cm ib_cm iw_cm

Configured IPoIB interfaces: ib0

Currently active IPoIB interfaces: none

Thank you in advance