ata_scsi_translate — Translate then issue SCSI command to ATA device
|struct ata_device * dev,|
|struct scsi_cmnd * cmd,|
struct ata_device * dev
ATA device to which the command is addressed
struct scsi_cmnd * cmd
SCSI command to execute
Actor which translates
cmd to an ATA taskfile
queuecommand function has decided that the SCSI
command issued can be directly translated into an ATA
command, rather than handled internally.
This function sets up an ata_queued_cmd structure for the SCSI command, and sends that ata_queued_cmd to the hardware.
The xlat_func argument (actor) returns 0 if ready to execute ATA command, else 1 to finish translation. If 1 is returned then cmd->result (and possibly cmd->sense_buffer) are assumed to be set reflecting an error condition or clean (early) termination.
LOCKING: spin_lock_irqsave(host lock)