map_bar
rc = map_bar(ntb, &ntb->bar_info[NTB_CONFIG_BAR]);
rc = map_bar(ntb, &ntb->bar_info[NTB_BAR_1]);
rc = map_bar(ntb, &ntb->bar_info[NTB_BAR_2]);
rc = map_bar(ntb, &ntb->bar_info[NTB_BAR_3]);
map_bar(name, reg, 0, &pbm);
map_bar(name, bar, 0, &pbm);
map_bar(name, bar, PCIIO_BAR_MMAP_RW, &pbm);