36     InvalidIrqIndex(u16),
37     InvalidIrqNum(u16),
38     IrqNumOccupied(u16),
52         irq_max_num: u16,
60         irq_max_num: u16,
75     irq_index: u16,     //要install的中断号在PCI设备中的irq_vector的index
77     irq_parameter: u16, //中断额外参数，可传入中断处理函数
86         processor: u16,
126                 let irq_max_num = ((data >> 16) & 0x07ff) as u16;  in irq_init()
158                 let message_control = (data >> 16) as u16;  in irq_init()
161                 let irq_max_num = (1 << (((message_control & 0x000e) >> 1) + 1)) as u16;  in irq_init()
269     fn irq_alloc(_num: u16) -> Option<Vec<u16>> {  in irq_alloc()  argument
386                         let message_control = (data >> 16) as u16;  in msi_install()
651     fn irq_mask(&mut self, irq_index: u16) -> Result<u8, PciError> {  in irq_mask()
673     fn msi_mask(&mut self, irq_index: u16) -> Result<u8, PciError> {  in msi_mask()
731     fn msix_mask(&mut self, irq_index: u16) -> Result<u8, PciError> {  in msix_mask()
772     fn irq_unmask(&mut self, irq_index: u16) -> Result<u8, PciError> {  in irq_unmask()
794     fn msi_unmask(&mut self, irq_index: u16) -> Result<u8, PciError> {  in msi_unmask()
851     fn msix_unmask(&mut self, irq_index: u16) -> Result<u8, PciError> {  in msix_unmask()
893     fn irq_check_pending(&mut self, irq_index: u16) -> Result<bool, PciError> {  in irq_check_pending()
916     fn msi_check_pending(&mut self, irq_index: u16) -> Result<bool, PciError> {  in msi_check_pending()
965     fn msix_check_pending(&mut self, irq_index: u16) -> Result<bool, PciError> {  in msix_check_pending()