tavor_mr_register
status = tavor_mr_register(state, pdhdl, mr_attr, &mrhdl, &op);
status = tavor_mr_register(state, pd, &mr_attr, &mr, &op);
status = tavor_mr_register(state, pd, &mr_attr, &mr, &op);
status = tavor_mr_register(state, pd, &mr_attr, &mr, &op);
comm->tlc_status = tavor_mr_register(lstate->tls_state,
status = tavor_mr_register(state, pd, &mr_attr, &mr, &op);
status = tavor_mr_register(state, pd, &mr_attr, &mr, &mr_op);
status = tavor_mr_register(state, pd, &mr_attr, &mr, &mr_op);
status = tavor_mr_register(state, pd, &mr_attr, &mr, &mr_op);
int tavor_mr_register(tavor_state_t *state, tavor_pdhdl_t pdhdl,