68 lines
2.7 KiB
Groff
68 lines
2.7 KiB
Groff
.\" $NetBSD: artsata.4,v 1.4 2005/02/15 08:15:17 wiz Exp $
|
|
.\"
|
|
.\" Copyright (c) 2003 Manuel Bouyer.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by Manuel Bouyer.
|
|
.\" 4. The name of the author may not be used to endorse or promote products
|
|
.\" derived from this software without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
.\" INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
.\"
|
|
.Dd February 12, 2005
|
|
.Dt ARTSATA 4
|
|
.Os
|
|
.Sh NAME
|
|
.Nm artsata
|
|
.Nd Intel i31244 Serial ATA disk controller driver
|
|
.Sh SYNOPSIS
|
|
.Cd "artsata* at pci? dev ? function ? flags 0x0000"
|
|
.Cd "options PCIIDE_I31244_DISABLEDMA"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
driver supports the Intel i31244 Serial ATA and controllers,
|
|
and provides the interface with the hardware for the
|
|
.Xr ata 4
|
|
driver.
|
|
.Pp
|
|
The 0x0002 flag forces the
|
|
.Nm
|
|
driver to disable DMA on chipsets for which DMA would normally be
|
|
enabled.
|
|
This can be used as a debugging aid, or to work around
|
|
problems where the SATA controller is wired up to the system incorrectly.
|
|
.Sh SEE ALSO
|
|
.Xr ata 4 ,
|
|
.Xr atapi 4 ,
|
|
.Xr intro 4 ,
|
|
.Xr pci 4 ,
|
|
.Xr pciide 4 ,
|
|
.Xr wd 4 ,
|
|
.Xr wdc 4
|
|
.Sh BUGS
|
|
Early samples of the Intel i31244 Serial ATA controller revision 0 had a
|
|
bug affecting DMA data transfers.
|
|
Full production samples have been fixed, but have the same revision number.
|
|
The
|
|
.Dv PCIIDE_I31244_DISABLEDMA
|
|
option can be used to disable DMA on the buggy revisions.
|