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| ATA_SG_SETUP(9) | libata Core Internals | ATA_SG_SETUP(9) |
NAME¶
ata_sg_setup - DMA-map the scatter-gather table associated with a command.
SYNOPSIS¶
int ata_sg_setup(struct ata_queued_cmd * qc);
ARGUMENTS¶
struct ata_queued_cmd * qc
Command with scatter-gather table to be mapped.
DESCRIPTION¶
DMA-map the scatter-gather table associated with queued_cmd qc.
LOCKING: spin_lock_irqsave(host lock)
RETURN¶
Zero on success, negative on error.
AUTHOR¶
Jeff Garzik
Author.
COPYRIGHT¶
| July 2017 | Kernel Hackers Manual 4.12 |