1 .\" $NetBSD: artsata.4,v 1.4 2005/02/15 08:15:17 wiz Exp $
3 .\" Copyright (c) 2003 Manuel Bouyer.
5 .\" Redistribution and use in source and binary forms, with or without
6 .\" modification, are permitted provided that the following conditions
8 .\" 1. Redistributions of source code must retain the above copyright
9 .\" notice, this list of conditions and the following disclaimer.
10 .\" 2. Redistributions in binary form must reproduce the above copyright
11 .\" notice, this list of conditions and the following disclaimer in the
12 .\" documentation and/or other materials provided with the distribution.
14 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 .\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 .\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 .\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 .\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 .\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 .\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 .\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 .\" INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 .Nd Intel i31244 Serial ATA disk controller driver
32 .Cd "artsata* at pci? dev ? function ? flags 0x0000"
33 .Cd "options PCIIDE_I31244_DISABLEDMA"
37 driver supports the Intel i31244 Serial ATA and controllers,
38 and provides the interface with the hardware for the
42 The 0x0002 flag forces the
44 driver to disable DMA on chipsets for which DMA would normally be
46 This can be used as a debugging aid, or to work around
47 problems where the SATA controller is wired up to the system incorrectly.
57 Early samples of the Intel i31244 Serial ATA controller revision 0 had a
58 bug affecting DMA data transfers.
59 Full production samples have been fixed, but have the same revision number.
61 .Dv PCIIDE_I31244_DISABLEDMA
62 option can be used to disable DMA on the buggy revisions.