ata_scsi_queuecmd — Issue SCSI cdb to libata-managed device
|struct Scsi_Host * shost,|
|struct scsi_cmnd * cmd|
In some cases, this function translates SCSI commands into ATA taskfiles, and queues the taskfiles to be sent to hardware. In other cases, this function simulates a SCSI device by evaluating and responding to certain SCSI commands. This creates the overall effect of ATA and ATAPI devices appearing as SCSI devices.
LOCKING: ATA host lock