'\" t
.\"     Title: ata_format_dsm_trim_descr
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: April 2019
.\"    Manual: libata SCSI translation/emulation
.\"    Source: Kernel Hackers Manual 4.9.168
.\"  Language: English
.\"
.TH "ATA_FORMAT_DSM_TRIM_" "9" "April 2019" "Kernel Hackers Manual 4\&.9\&." "libata SCSI translation/emulat"
.\" -----------------------------------------------------------------
.\" * Define some portability stuff
.\" -----------------------------------------------------------------
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.SH "NAME"
ata_format_dsm_trim_descr \- SATL Write Same to DSM Trim
.SH "SYNOPSIS"
.HP \w'size_t\ ata_format_dsm_trim_descr('u
.BI "size_t ata_format_dsm_trim_descr(struct\ scsi_cmnd\ *\ " "cmd" ", u32\ " "trmax" ", u64\ " "sector" ", u32\ " "count" ");"
.SH "ARGUMENTS"
.PP
\fIcmd\fR
.RS 4
SCSI command being translated
.RE
.PP
\fItrmax\fR
.RS 4
Maximum number of entries that will fit in sector_size bytes\&.
.RE
.PP
\fIsector\fR
.RS 4
Starting sector
.RE
.PP
\fIcount\fR
.RS 4
Total Range of request in logical sectors
.RE
.SH "DESCRIPTION"
.PP
Rewrite the WRITE SAME descriptor to be a DSM TRIM little\-endian formatted descriptor\&.
.PP
Upto 64 entries of the format: 63:48 Range Length 47:0 LBA
.PP
Range Length of 0 is ignored\&. LBA\*(Aqs should be sorted order and not overlap\&.
.SH "NOTE"
.PP
this is the same format as ADD LBA(S) TO NV CACHE PINNED SET
.SH "RETURN"
.PP
Number of bytes copied into sglist\&.
.SH "AUTHOR"
.PP
\fBJeff Garzik\fR
.RS 4
Author.
.RE
.SH "COPYRIGHT"
.br