IBDM_HCA_ATTACHED
if (!(ibdm.ibdm_state & IBDM_HCA_ATTACHED)) {
ibdm.ibdm_state |= IBDM_HCA_ATTACHED;
if (ibdm.ibdm_state & IBDM_HCA_ATTACHED)
ibdm.ibdm_state &= ~IBDM_HCA_ATTACHED;