ata_build_rw_tf — Build ATA taskfile for given read/write request
| int ata_build_rw_tf ( | struct ata_taskfile * tf, | 
| struct ata_device * dev, | |
| u64 block, | |
| u32 n_block, | |
| unsigned int tf_flags, | |
| unsigned int tag ); | 
tfTarget ATA taskfile
dev
     ATA device tf belongs to
    
blockBlock address
n_blockNumber of blocks
tf_flagsRW/FUA etc...
tagtag