MSI_DATA_DELIVERY_MODE_SHIFT 18 include/asm-x86/msidef.h #define MSI_DATA_DELIVERY_FIXED (0 << MSI_DATA_DELIVERY_MODE_SHIFT) MSI_DATA_DELIVERY_MODE_SHIFT 19 include/asm-x86/msidef.h #define MSI_DATA_DELIVERY_LOWPRI (1 << MSI_DATA_DELIVERY_MODE_SHIFT)