'\" t
.\"     Title: ata_scsi_translate
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: libata SCSI translation/emulation
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "ATA_SCSI_TRANSLATE" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "libata SCSI translation/emulat"
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.SH "NAME"
ata_scsi_translate \- Translate then issue SCSI command to ATA device
.SH "SYNOPSIS"
.HP \w'int\ ata_scsi_translate('u
.BI "int ata_scsi_translate(struct\ ata_device\ *\ " "dev" ", struct\ scsi_cmnd\ *\ " "cmd" ", ata_xlat_func_t\ " "xlat_func" ");"
.SH "ARGUMENTS"
.PP
\fIdev\fR
.RS 4
ATA device to which the command is addressed
.RE
.PP
\fIcmd\fR
.RS 4
SCSI command to execute
.RE
.PP
\fIxlat_func\fR
.RS 4
Actor which translates
\fIcmd\fR
to an ATA taskfile
.RE
.SH "DESCRIPTION"
.PP
Our \->\fBqueuecommand\fR
function has decided that the SCSI command issued can be directly translated into an ATA command, rather than handled internally\&.
.PP
This function sets up an ata_queued_cmd structure for the SCSI command, and sends that ata_queued_cmd to the hardware\&.
.PP
The xlat_func argument (actor) returns 0 if ready to execute ATA command, else 1 to finish translation\&. If 1 is returned then cmd\->result (and possibly cmd\->sense_buffer) are assumed to be set reflecting an error condition or clean (early) termination\&.
.PP
LOCKING: spin_lock_irqsave(host lock)
.SH "RETURN"
.PP
0 on success, SCSI_ML_QUEUE_DEVICE_BUSY if the command needs to be deferred\&.
.SH "AUTHOR"
.PP
\fBJeff Garzik\fR
.RS 4
Author.
.RE
.SH "COPYRIGHT"
.br