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
       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
Kernel Hackers Manual 4.8.                 January 2017                           ATA_QC_ISSUE(9)