On Wed, May 13, 2020 at 03:38:37PM +0300, Kamal Heib wrote: > > > Correct me if I'm wrong, Do you mean check the return value from > > > rdma_cap_ib_mad()? > > > > I think so. > > > > Thanks > > Well, this function will not help in the case of VFs, because the flag > that is checked in rdma_cap_ib_mad() is RDMA_CORE_CAP_IB_MAD which is > set almost for each create IB device as part of RDMA_CORE_PORT_IBA_IB or > RDMA_CORE_PORT_IBA_ROCE or RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP. AFAIK this case only happens for mlx4 devices that use the GUID table to emulate virtual IB ports. In this case there is no bit to control. I didn't quite understand why srpt has this stuff, does it mean it is broken on mlx4 vports? Why allow the failure? Jason
