Name

ata_scsi_qc_new — acquire new ata_queued_cmd reference

Synopsis

struct ata_queued_cmd * ata_scsi_qc_new (struct ata_device * dev,
 struct scsi_cmnd * cmd);
 

Arguments

dev

ATA device to which the new command is attached

cmd

SCSI command that originated this ATA command

Description

Obtain a reference to an unused ata_queued_cmd structure, which is the basic libata structure representing a single ATA command sent to the hardware.

If a command was available, fill in the SCSI-specific portions of the structure with information on the current command.

LOCKING: spin_lock_irqsave(host lock)

Return

Command allocated, or NULL if none available.