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ATA_QC_ISSUE(9) libata Core Internals ATA_QC_ISSUE(9)

NAME

ata_qc_issue - issue taskfile to device

SYNOPSIS

void ata_qc_issue(struct ata_queued_cmd * qc);

ARGUMENTS

struct ata_queued_cmd * qc
command to issue to device

DESCRIPTION

Prepare an ATA command to submission to device. This includes mapping the data into a DMA-able area, filling in the S/G table, and finally writing the taskfile to hardware, starting the command.

LOCKING: spin_lock_irqsave(host lock)

AUTHOR

Jeff Garzik
Author.

COPYRIGHT

September 2017 Kernel Hackers Manual 4.12