NAME
ata_check_atapi_dma - Check whether ATAPI DMA can be supported
SYNOPSIS
int ata_check_atapi_dma(struct ata_queued_cmd * qc);
ARGUMENTS
qc
Metadata associated with taskfile to check
DESCRIPTION
Allow low-level driver to filter ATA PACKET commands, returning a status indicating whether or not it is OK to use DMA for the supplied PACKET command.
LOCKING
spin_lock_irqsave(host_set lock)
RETURNS
0 when ATAPI DMA can be used nonzero otherwise
AUTHOR
Jeff Garzik
-
Author.