78         let cmdheader: &mut HbaCmdHeader = unsafe {  in read_at()  localVariable
88             cmdheader.cfl,  in read_at()
93         volatile_set_bit!(cmdheader.cfl, 1 << 6, false); //  Read/Write bit : Read from device  in read_at()
94         volatile_write!(cmdheader.prdtl, check_length as u16); // PRDT entries count  in read_at()
100             (phys_2_virt(volatile_read!(cmdheader.ctba) as usize) as *mut HbaCmdTable)  in read_at()
112         for i in 0..((volatile_read!(cmdheader.prdtl) - 1) as usize) {  in read_at()
121         let las = (volatile_read!(cmdheader.prdtl) - 1) as usize;  in read_at()
212         let cmdheader: &mut HbaCmdHeader = unsafe {  in write_at()  localVariable
223             cmdheader.cfl,  in write_at()
228 …volatile_set_bit!(cmdheader.cfl, 7 << 5, true); // (p,c,w)都设置为1, Read/Write bit :  Write from devi…  in write_at()
229         volatile_write!(cmdheader.prdtl, check_length as u16); // PRDT entries count  in write_at()
236             (phys_2_virt(volatile_read!(cmdheader.ctba) as usize) as *mut HbaCmdTable)  in write_at()
249         for i in 0..((volatile_read!(cmdheader.prdtl) - 1) as usize) {  in write_at()
258         let las = (volatile_read!(cmdheader.prdtl) - 1) as usize;  in write_at()