'\" t
.\"     Title: ata_qc_new
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: May 2018
.\"    Manual: libata Core Internals
.\"    Source: Kernel Hackers Manual 3.16.56
.\"  Language: English
.\"
.TH "ATA_QC_NEW" "9" "May 2018" "Kernel Hackers Manual 3\&.16\&" "libata Core Internals"
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.SH "NAME"
ata_qc_new \- Request an available ATA command, for queueing
.SH "SYNOPSIS"
.HP \w'struct\ ata_queued_cmd\ *\ ata_qc_new('u
.BI "struct ata_queued_cmd * ata_qc_new(struct\ ata_port\ *\ " "ap" ");"
.SH "ARGUMENTS"
.PP
\fIap\fR
.RS 4
target port
.RE
.SH "DESCRIPTION"
.PP
Some ATA host controllers may implement a queue depth which is less than ATA_MAX_QUEUE\&. So we shouldn\*(Aqt allocate a tag which is beyond the hardware limitation\&.
.SH "LOCKING"
.PP
None\&.
.SH "AUTHOR"
.PP
\fBJeff Garzik\fR
.RS 4
Author.
.RE
.SH "COPYRIGHT"
.br