PCI_EXP_SLTCAP_NCCS
#define NO_CMD_CMPL(ctrl) ((ctrl)->slot_cap & PCI_EXP_SLTCAP_NCCS)
slot_cap |= PCI_EXP_SLTCAP_NCCS;
FLAG(slot_cap, PCI_EXP_SLTCAP_NCCS),
!(slot_cap & PCI_EXP_SLTCAP_NCCS))