56         count: usize,                             // 读取lba的数量  in read_at()  argument
58     ) -> Result<usize, SystemError> {  in read_at()  argument
61         if count * 512 > buf.len() || check_length > u16::MAX as usize {  in read_at()
81                 volatile_read!(port.clb) as usize  in read_at()
82                     + slot as usize * size_of::<HbaCmdHeader>() as usize,  in read_at()
98         let mut buf_ptr = buf as *mut [u8] as *mut usize as usize;  in read_at()
118             buf_ptr = kbuf.as_mut().unwrap().as_mut_ptr() as usize;  in read_at()
123             (phys_2_virt(volatile_read!(cmdheader.ctba) as usize) as *mut HbaCmdTable)  in read_at()
135         for i in 0..((volatile_read!(cmdheader.prdtl) - 1) as usize) {  in read_at()
144         let las = (volatile_read!(cmdheader.prdtl) - 1) as usize;  in read_at()
155             ((&mut cmdtbl.cfis) as *mut [u8] as *mut usize as *mut FisRegH2D)  in read_at()
215         count: usize,  in write_at()  argument
217     ) -> Result<usize, SystemError> {  in write_at()  argument
220         if count * 512 > buf.len() || check_length > u16::MAX as usize {  in write_at()
241                 volatile_read!(port.clb) as usize  in write_at()
242                     + slot as usize * size_of::<HbaCmdHeader>() as usize,  in write_at()
260         let mut buf_ptr = buf as *const [u8] as *mut usize as usize;  in write_at()
279             buf_ptr = kbuf.as_mut().unwrap().as_mut_ptr() as usize;  in write_at()
284             (phys_2_virt(volatile_read!(cmdheader.ctba) as usize) as *mut HbaCmdTable)  in write_at()
297         for i in 0..((volatile_read!(cmdheader.prdtl) - 1) as usize) {  in write_at()
306         let las = (volatile_read!(cmdheader.prdtl) - 1) as usize;  in write_at()
317             ((&mut cmdtbl.cfis) as *mut [u8] as *mut usize as *mut FisRegH2D)  in write_at()
453         count: usize,  in read_at()  argument
455     ) -> Result<usize, SystemError> {  in read_at()  argument
467         count: usize,  in write_at()  argument
469     ) -> Result<usize, SystemError> {  in write_at()  argument
482     fn block_size(&self) -> usize {  in block_size()  argument