NTB_BAR_2
ntb->bar_info[NTB_BAR_2].pci_resource_id = PCIR_BAR(2);
rc = map_bar(ntb, &ntb->bar_info[NTB_BAR_2]);
ntb->bar_info[NTB_BAR_2].xlat_off = AMD_BAR23XLAT_OFFSET;
ntb->bar_info[NTB_BAR_2].limit_off = AMD_BAR23LMT_OFFSET;