PCI_IDE_SEL_CTL_ID
id = FIELD_GET(PCI_IDE_SEL_CTL_ID, val);
FIELD_MODIFY(PCI_IDE_SEL_CTL_ID, &val, PCI_IDE_RESERVED_STREAM_ID);
u32 val = FIELD_PREP(PCI_IDE_SEL_CTL_ID, ide->stream_id) |