Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add man page for per-chip pciide drivers.

Browse Source
This commit is contained in:
bouyer 2003-10-08 12:02:40 +00:00
parent f5a6a0a843
commit e3847b4da7
13 changed files with 801 additions and 73 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
share/man/man4/Makefile
View File

@ -1,19 +1,19 @@
# $NetBSD: Makefile,v 1.299 2003/10/08 11:20:09 bouyer Exp $
# $NetBSD: Makefile,v 1.300 2003/10/08 12:02:40 bouyer Exp $
# @(#)Makefile 8.1 (Berkeley) 6/18/93
MAN= aac.4 acphy.4 adv.4 adw.4 agp.4 ahb.4 ahc.4 amdpm.4 \
amhphy.4 amr.4 an.4 aria.4 \
MAN= aac.4 acardide.4 aceride.4 acphy.4 adv.4 adw.4 agp.4 ahb.4 ahc.4 \
amdpm.4 amhphy.4 amr.4 an.4 aria.4 \
ata.4 atalk.4 atw.4 audio.4 audiocs.4 auich.4 autri.4 \
auvia.4 awi.4 bba.4 bce.4 bge.4 bha.4 bktr.4 bpf.4 bmtphy.4 brgphy.4 \
bridge.4 cac.4 cardbus.4 ccd.4 cd.4 cec.4 \
cgd.4 cfb.4 ch.4 clcs.4 clct.4 \
clnp.4 clockctl.4 cltp.4 \
cmpci.4 cms.4 cnw.4 com.4 cs80bus.4 \
cmdide.4 cmpci.4 cms.4 cnw.4 com.4 cs80bus.4 cypide.4 \
ddb.4 de.4 dmoverio.4 dmphy.4 dpt.4 dpti.4 \
drum.4 eap.4 ebus.4 edc.4 elmc.4 emuxki.4 en.4 envsys.4 ep.4 esh.4 \
esis.4 esa.4 esiop.4 esl.4 esm.4 eso.4 exphy.4 \
fd.4 fpa.4 fms.4 fwiso.4 fxp.4 \
gem.4 gentbi.4 glxtphy.4 gpib.4 gre.4 gphyter.4 gsip.4 hme.4 \
gem.4 gentbi.4 glxtphy.4 gpib.4 gre.4 gphyter.4 gsip.4 hme.4 hptide.4 \
icmp.4 icp.4 icsphy.4 idp.4 ifmedia.4 igsfb.4 iha.4 inet.4 \
inphy.4 intersil7170.4 ioasic.4 ioat.4 \
iop.4 iophy.4 iopsp.4 ip.4 ipkdb.4 iso.4 isp.4 joy.4 \
@ -23,18 +23,18 @@ MAN= aac.4 acphy.4 adv.4 adw.4 agp.4 ahb.4 ahc.4 amdpm.4 \
mk48txx.4 mlx.4 mly.4 mpt.4 mpu.4 mtd.4 mtio.4 \
ne.4 neo.4 netintro.4 netsmb.4 ns.4 nsclpcsio.4 nsip.4 \
nsphy.4 nsphyter.4 ntwoc.4 null.4 nsmb.4 \
oak.4 oosiop.4 opl.4 options.4 osiop.4 pas.4 \
pcdisplay.4 pciide.4 pckbc.4 pckbd.4 pcn.4 pcppi.4 pcscp.4 pcweasel.4 \
pms.4 pnaphy.4 ppp.4 pppoe.4 pty.4 puc.4 px.4 pxg.4 qsphy.4 \
raid.4 ray.4 rcons.4 rnd.4 route.4 \
oak.4 oosiop.4 opl.4 options.4 optiide.4 osiop.4 pas.4 \
pcdisplay.4 pciide.4 pdcide.4 piixide.4 pckbc.4 pckbd.4 pcn.4 pcppi.4 \
pcscp.4 pcweasel.4 pms.4 pnaphy.4 ppp.4 pppoe.4 pty.4 puc.4 px.4 \
pxg.4 qsphy.4 raid.4 ray.4 rcons.4 rnd.4 route.4 \
rtk.4 sbus.4 scc.4 scsi.4 sd.4 se.4 ses.4 sf.4 sfb.4 siop.4 \
sip.4 sk.4 sl.4 sm.4 spc.4 \
sip.4 siside.4 sk.4 sl.4 slide.4 sm.4 spc.4 \
speaker.4 spp.4 sqphy.4 ss.4 st.4 ste.4 stge.4 sv.4 strip.4 systrace.4 \
tb.4 tc.4 tcds.4 tcp.4 \
termios.4 tfb.4 ti.4 tl.4 tlp.4 tlphy.4 tp.4 tr.4 trm.4 tty.4 tun.4 \
tqphy.4 twe.4 txp.4 \
udp.4 uha.4 uk.4 ukphy.4 unix.4 userconf.4 verifiedexec.4 vga.4 \
vlan.4 vmmon.4 vmnet.4 vnd.4 \
viaide.4 vlan.4 vmmon.4 vmnet.4 vnd.4 \
vr.4 wd.4 wdc.4 wi.4 wm.4 \
wscons.4 wsdisplay.4 wsfont.4 wskbd.4 wsmouse.4 wsmux.4 \
yds.4 ym.4 zero.4 zstty.4

63
share/man/man4/acardide.4 Normal file
View File

@ -0,0 +1,63 @@
.\" $NetBSD: acardide.4,v 1.1 2003/10/08 12:02:40 bouyer 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 October 8, 2003
.Dt ACARDIDE 4
.Os
.Sh NAME
.Nm acardide
.Nd acard IDE disk controllers driver
.Sh SYNOPSIS
.Cd "acardide* at pci? dev ? function ? flags 0x0000"
.Sh DESCRIPTION
The
.Nm
driver supports the Acard ATP850U Ultra33, ATP860 Ultra66 and ATP860-A Ultra66
IDE controllers, and provides the interface with the hardware for the
.Ic ata
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 IDE controller is wired up to the system incorrectly.
.Sh SEE ALSO
.Xr intro 4 ,
.Xr pci 4 ,
.Xr ata 4 ,
.Xr atapi 4 ,
.Xr wd 4 ,
.Xr pciide 4
.Xr wdc 4
.Sh BUGS
The timings used for the PIO and DMA modes for controllers listed above
are for a PCI bus running at 30 or 33 MHz.
This driver may not work properly on overclocked systems.

63
share/man/man4/aceride.4 Normal file
View File

@ -0,0 +1,63 @@
.\" $NetBSD: aceride.4,v 1.1 2003/10/08 12:02:40 bouyer 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 October 8, 2003
.Dt ACERIDE 4
.Os
.Sh NAME
.Nm aceride
.Nd PCI IDE disk controllers driver
.Sh SYNOPSIS
.Cd "aceride* at pci? dev ? function ? flags 0x0000"
.Sh DESCRIPTION
The
.Nm
driver supports the Acer Labs M5229 IDE controllers, and provides the
interface with the hardware for the
.Ic ata
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 IDE controller is wired up to the system incorrectly.
.Sh SEE ALSO
.Xr intro 4 ,
.Xr pci 4 ,
.Xr ata 4 ,
.Xr atapi 4 ,
.Xr wd 4 ,
.Xr pciide 4
.Xr wdc 4
.Sh BUGS
The timings used for the PIO and DMA modes for controllers listed above
are for a PCI bus running at 30 or 33 MHz.
This driver may not work properly on overclocked systems.

80
share/man/man4/cmdide.4 Normal file
View File

@ -0,0 +1,80 @@
.\" $NetBSD: cmdide.4,v 1.1 2003/10/08 12:02:40 bouyer 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 October 8, 2003
.Dt CMDIDE 4
.Os
.Sh NAME
.Nm cmdide
.Nd CMD Technology and Silicon Image IDE disk controllers driver
.Sh SYNOPSIS
.Cd "cmdide* at pci? dev ? function ? flags 0x0000"
.Cd "options PCIIDE_CMD064x_DISABLE"
.Cd "options PCIIDE_CMD0646U_ENABLEUDMA"
.Sh DESCRIPTION
The
.Nm
driver supports the CMD Technology PCI0640, PCI0643, PCI0646, PCI0648, PCI0649,
and Silicon Image 0680 and SATALink 3112 IDE controllers, and provides the
interface with the hardware for the
.Ic ata
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 IDE controller is wired up to the system incorrectly.
.Sh SEE ALSO
.Xr intro 4 ,
.Xr pci 4 ,
.Xr ata 4 ,
.Xr atapi 4 ,
.Xr wd 4 ,
.Xr pciide 4 ,
.Xr wdc 4
.Sh BUGS
There's no way to reliably know if a PCI064x controller is enabled or not.
If the driver finds a PCI064x, it will assume it is enabled unless the
PCIIDE_CMD064x_DISABLE option is specified in the kernel config file.
This will be a problem only if the controller has been disabled in the BIOS
and another controller has been installed and uses the ISA legacy I/O ports
and interrupts.
.Pp
The PCI0646U controller is known to be buggy with Ultra-DMA transfers, so
Ultra-DMA is disabled by default for this controller.
To enable Ultra-DMA, use the PCIIDE_CMD0646U_ENABLEUDMA option.
Ultra-DMA can eventually be disabled on a per-drive basis with config
flags, see
.Xr wd 4 .
.Pp
The timings used for the PIO and DMA modes for controllers listed above
are for a PCI bus running at 30 or 33 MHz.
This driver may not work properly on overclocked systems.

63
share/man/man4/cypide.4 Normal file
View File

@ -0,0 +1,63 @@
.\" $NetBSD: cypide.4,v 1.1 2003/10/08 12:02:40 bouyer 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 October 8, 2003
.Dt CYPIDE 4
.Os
.Sh NAME
.Nm cypide
.Nd Cypress IDE disk controllers driver
.Sh SYNOPSIS
.Cd "cypide* at pci? dev ? function ? flags 0x0000"
.Sh DESCRIPTION
The
.Nm
driver supports the Cypress 82C693 IDE controllers, and provides the
interface with the hardware for the
.Ic ata
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 IDE controller is wired up to the system incorrectly.
.Sh SEE ALSO
.Xr intro 4 ,
.Xr pci 4 ,
.Xr ata 4 ,
.Xr atapi 4 ,
.Xr wd 4 ,
.Xr pciide 4 ,
.Xr wdc 4
.Sh BUGS
The timings used for the PIO and DMA modes for controllers listed above
are for a PCI bus running at 30 or 33 MHz.
This driver may not work properly on overclocked systems.

64
share/man/man4/hptide.4 Normal file
View File

@ -0,0 +1,64 @@
.\" $NetBSD: hptide.4,v 1.1 2003/10/08 12:02:40 bouyer 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 October 8, 2003
.Dt HPTIDE 4
.Os
.Sh NAME
.Nm hptide
.Nd Triones/Highpoint IDE disk controllers driver
.Sh SYNOPSIS
.Cd "hptide* at pci? dev ? function ? flags 0x0000"
.Sh DESCRIPTION
The
.Nm
driver supports the Triones/Highpoint HPT366, HPT370, HPT370A, HPT372 and
HPT374 IDE controllers, and provides the
interface with the hardware for the
.Ic ata
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 IDE controller is wired up to the system incorrectly.
.Sh SEE ALSO
.Xr intro 4 ,
.Xr pci 4 ,
.Xr ata 4 ,
.Xr atapi 4 ,
.Xr wd 4 ,
.Xr pciide 4
.Xr wdc 4
.Sh BUGS
The timings used for the PIO and DMA modes for controllers listed above
are for a PCI bus running at 30 or 33 MHz.
This driver may not work properly on overclocked systems.

63
share/man/man4/optiide.4 Normal file
View File

@ -0,0 +1,63 @@
.\" $NetBSD: optiide.4,v 1.1 2003/10/08 12:02:40 bouyer 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 October 8, 2003
.Dt OPTIIDE 4
.Os
.Sh NAME
.Nm optiide
.Nd OPTi IDE disk controllers driver
.Sh SYNOPSIS
.Cd "optiide* at pci? dev ? function ? flags 0x0000"
.Sh DESCRIPTION
The
.Nm
driver supports the OPTi 82c621, 82c568 and 82d568 IDE controllers,
and provides the interface with the hardware for the
.Ic ata
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 IDE controller is wired up to the system incorrectly.
.Sh SEE ALSO
.Xr intro 4 ,
.Xr pci 4 ,
.Xr ata 4 ,
.Xr atapi 4 ,
.Xr wd 4 ,
.Xr pciide 4 ,
.Xr wdc 4
.Sh BUGS
The timings used for the PIO and DMA modes for controllers listed above
are for a PCI bus running at 25 or 33 MHz.
This driver may not work properly on overclocked systems.

110
share/man/man4/pciide.4
View File

@ -1,6 +1,6 @@
.\" $NetBSD: pciide.4,v 1.53 2003/10/08 11:20:09 bouyer Exp $
.\" $NetBSD: pciide.4,v 1.54 2003/10/08 12:02:40 bouyer Exp $
.\"
.\" Copyright (c) 1998 Manuel Bouyer.
.\" Copyright (c) 1998,2003 Manuel Bouyer.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
@ -36,10 +36,6 @@
.Sh SYNOPSIS
.Cd "pciide* at pci? dev ? function ? flags 0x0000"
.Cd "pciide* at pnpbios? index ?"
.Cd "options PCIIDE_CMD064x_DISABLE"
.Cd "options PCIIDE_AMD756_ENABLEDMA"
.Cd "options PCIIDE_CMD0646U_ENABLEUDMA"
.Cd "options PCIIDE_I31244_ENABLEDMA"
.Sh DESCRIPTION
The
.Nm
@ -48,46 +44,62 @@ driver supports the PCI IDE controllers as specified in the
interface with the hardware for the
.Ic ata
driver.
This driver include specific, enhanced support for the CMD Tech
PCI0640 controller, and IDE DMA/Ultra-DMA support for the following
controllers:
Please use the chip-specific drivers for the following controllers for
enhanced and DMA support:
.Bl -dash -compact -offset indent
.It
Acard ATP850 (Ultra/33) and ATP860 (Ultra/66) IDE Controllers
Acard ATP850 (Ultra/33) and ATP860 (Ultra/66) IDE Controllers:
.Xr acardide 4
.It
Acer labs M5229 IDE Controller
Acer labs M5229 IDE Controller:
.Xr aceride 4
.It
Advanced Micro Devices AMD-756, 766, and 768 IDE Controllers
Advanced Micro Devices AMD-756, 766, and 768 IDE Controllers:
.Xr viaide 4
.It
CMD Tech PCI0643, PCI0646, PCI0648, and PCI0649 IDE Controllers
CMD Tech PCI0643, PCI0646, PCI0648, and PCI0649 IDE Controllers:
.Xr cmdide 4
.It
Contaq Microsystems/Cypress CY82C693 IDE Controller
Contaq Microsystems/Cypress CY82C693 IDE Controller:
.Xr cypide 4
.It
HighPoint HPT366 Ultra/66, HPT370 Ultra/100, HPT372, and HPT374 Ultra/133
IDE controller
IDE controller:
.Xr hptide 4
.It
Intel PIIX, PIIX3, and PIIX4 IDE Controllers
Intel PIIX, PIIX3, and PIIX4 IDE Controllers:
.Xr piixide 4
.It
Intel i31244 Serial ATA controller
Intel i31244 Serial ATA controller:
.Xr piixide 4
.It
Intel 82801 (ICH/ICH0/ICH2/ICH3/ICH4/ICH5) IDE Controllers
Intel 82801 (ICH/ICH0/ICH2/ICH3/ICH4/ICH5) IDE Controllers:
.Xr piixide 4
.It
OPTi 82c621 (plus a few of its derivatives) IDE Controllers
NVIDIA nForce/nForce2 IDE Controllers:
.Xr viaide 4
.It
OPTi 82c621 (plus a few of its derivatives) IDE Controllers:
.Xr optiide 4
.It
Promise PDC20246 (Ultra/33), PDC20262 (Ultra/66), PDC20265/PDC20267 (Ultra100),
PDC20268 (Ultra/100TX2 and Ultra/100TX2v2), Ultra/133, Ultra/133TX2 and
Ultra/133TX2v2 PCI IDE controllers
Ultra/133TX2v2 PCI IDE controllers:
.Xr pdcide 4
.It
Silicon Image 0680 IDE controller
Silicon Image 0680 IDE controller:
.Xr cmdide 4
.It
Silicon Image SATALink 3112 Serial ATA controller
Silicon Image SATALink 3112 Serial ATA controller:
.Xr cmdide 4
.It
Silicon Integrated System 5597/5598 IDE controller
Silicon Integrated System 5597/5598 IDE controller:
.Xr siside 4
.It
VIA Technologies VT82C586, VT82C586A, VT82C596A, VT82C686A, VT8233A,
and VT8235 IDE Controllers
and VT8235 IDE Controllers:
.Xr viaide 4
.El
Some of these controllers are only available in multifunction PCI chips.
.Pp
The 0x0001 flag forces the
.Nm
@ -106,44 +118,18 @@ problems where the IDE controller is wired up to the system incorrectly.
.Xr intro 4 ,
.Xr pci 4 ,
.Xr pnpbios 4 ,
.Xr scsi 4 ,
.Xr ata 4 ,
.Xr atapi 4 ,
.Xr wd 4 ,
.Xr acardide 4 ,
.Xr aceride 4 ,
.Xr cmdide 4 ,
.Xr cypide 4 ,
.Xr hptide 4 ,
.Xr optiide 4 ,
.Xr pdcide 4 ,
.Xr piixide 4 ,
.Xr siside 4 ,
.Xr slide 4 ,
.Xr viaide 4 ,
.Xr wdc 4
.Sh BUGS
There's no way to reliably know if a PCI064x controller is enabled or not.
If the driver finds a PCI064x, it will assume it is enabled unless the
PCIIDE_CMD064x_DISABLE option is specified in the kernel config file.
This will be a problem only if the controller has been disabled in the BIOS
and another controller has been installed and uses the ISA legacy I/O ports
and interrupts.
.Pp
The PCI0646U controller is known to be buggy with Ultra-DMA transfers, so
Ultra-DMA is disabled by default for this controller.
To enable Ultra-DMA, use the PCIIDE_CMD0646U_ENABLEUDMA option.
Ultra-DMA can eventually be disabled on a per-drive basis with config
flags, see
.Xr wd 4 .
.Pp
The AMD756 chip revision D2 has a bug affecting DMA (but not Ultra-DMA)
modes.
The workaround documented by AMD is to not use DMA on any drive which
does not support Ultra-DMA modes.
This does not appear to be necessary on all drives, the
PCIIDE_AMD756_ENABLEDMA option can be used to force multiword DMA
on the buggy revisions.
Multiword DMA can eventually be disabled on a
per-drive basis with config flags, see
.Xr wd 4 .
The bug, if triggered, will cause a total system hang.
.Pp
The Intel i31244 Serial ATA controller revision 0 has a bug affecting
DMA data transfers.
The PCIIDE_I31244_ENABLEDMA option can be used to force DMA on the
buggy revisions.
.Pp
The timings used for the PIO and DMA modes for controllers listed above
are for a PCI bus running at 30 or 33 MHz (except the OPTi controller,
which supports both 25 and 33 MHz PCI bus timings).
This driver may not work properly on overclocked systems.

65
share/man/man4/pdcide.4 Normal file
View File

@ -0,0 +1,65 @@
.\" $NetBSD: pdcide.4,v 1.1 2003/10/08 12:02:40 bouyer 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 October 8, 2003
.Dt PDCIDE 4
.Os
.Sh NAME
.Nm pdcide
.Nd Promise IDE disk controllers driver
.Sh SYNOPSIS
.Cd "pdcide* at pci? dev ? function ? flags 0x0000"
.Sh DESCRIPTION
The
.Nm
driver supports the Promise Ultra33, Ultra66, Ultra100, Ultra100TX2,
Ultra100TX2v2, Ultra133, Ultra133TX2, Ultra133TX2v2, Fasttrak133 and
Serial ATA/150 IDE controllers, and provides the
interface with the hardware for the
.Ic ata
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 IDE controller is wired up to the system incorrectly.
.Sh SEE ALSO
.Xr intro 4 ,
.Xr pci 4 ,
.Xr ata 4 ,
.Xr atapi 4 ,
.Xr wd 4 ,
.Xr pciide 4 ,
.Xr wdc 4
.Sh BUGS
The timings used for the PIO and DMA modes for controllers listed above
are for a PCI bus running at 30 or 33 MHz.
This driver may not work properly on overclocked systems.

70
share/man/man4/piixide.4 Normal file
View File

@ -0,0 +1,70 @@
.\" $NetBSD: piixide.4,v 1.1 2003/10/08 12:02:40 bouyer 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 October 8, 2003
.Dt PIIXIDE 4
.Os
.Sh NAME
.Nm piixide
.Nd Intel IDE disk controllers driver
.Sh SYNOPSIS
.Cd "piixide* at pci? dev ? function ? flags 0x0000"
.Cd "options PCIIDE_I31244_ENABLEDMA"
.Sh DESCRIPTION
The
.Nm
driver supports the Intel PIIX, PIIX3, PIIX4, i31244 Serial ATA, and
82801 (ICH/ICH0/ICH2/ICH3/ICH4/ICH5) IDE controllers,
and provides the interface with the hardware for the
.Ic ata
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 IDE controller is wired up to the system incorrectly.
.Sh SEE ALSO
.Xr intro 4 ,
.Xr pci 4 ,
.Xr ata 4 ,
.Xr atapi 4 ,
.Xr wd 4 ,
.Xr pciide 4
.Xr wdc 4
.Sh BUGS
The Intel i31244 Serial ATA controller revision 0 has a bug affecting
DMA data transfers.
The PCIIDE_I31244_ENABLEDMA option can be used to force DMA on the
buggy revisions.
.Pp
The timings used for the PIO and DMA modes for controllers listed above
are for a PCI bus running at 30 or 33 MHz.
This driver may not work properly on overclocked systems.

63
share/man/man4/siside.4 Normal file
View File

@ -0,0 +1,63 @@
.\" $NetBSD: siside.4,v 1.1 2003/10/08 12:02:40 bouyer 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 October 8, 2003
.Dt SISIDE 4
.Os
.Sh NAME
.Nm siside
.Nd Silicon Integrated System IDE disk controllers driver
.Sh SYNOPSIS
.Cd "siside* at pci? dev ? function ? flags 0x0000"
.Sh DESCRIPTION
The
.Nm
driver supports the Silicon Integrated System IDE controllers,
and provides the interface with the hardware for the
.Ic ata
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 IDE controller is wired up to the system incorrectly.
.Sh SEE ALSO
.Xr intro 4 ,
.Xr pci 4 ,
.Xr ata 4 ,
.Xr atapi 4 ,
.Xr wd 4 ,
.Xr pciide 4 ,
.Xr wdc 4
.Sh BUGS
The timings used for the PIO and DMA modes for controllers listed above
are for a PCI bus running at 30 or 33 MHz.
This driver may not work properly on overclocked systems.

63
share/man/man4/slide.4 Normal file
View File

@ -0,0 +1,63 @@
.\" $NetBSD: slide.4,v 1.1 2003/10/08 12:02:40 bouyer 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 October 8, 2003
.Dt SLIDE 4
.Os
.Sh NAME
.Nm slide
.Nd Symphony Labs and Winbond IDE disk controllers driver
.Sh SYNOPSIS
.Cd "slide* at pci? dev ? function ? flags 0x0000"
.Sh DESCRIPTION
The
.Nm
driver supports the Symphony Labs82C105 and Winbond W83C553F IDE controllers,
and provides the interface with the hardware for the
.Ic ata
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 IDE controller is wired up to the system incorrectly.
.Sh SEE ALSO
.Xr intro 4 ,
.Xr pci 4 ,
.Xr ata 4 ,
.Xr atapi 4 ,
.Xr wd 4 ,
.Xr pciide 4 ,
.Xr wdc 4
.Sh BUGS
The timings used for the PIO and DMA modes for controllers listed above
are for a PCI bus running at 30 or 33 MHz.
This driver may not work properly on overclocked systems.

85
share/man/man4/viaide.4 Normal file
View File

@ -0,0 +1,85 @@
.\" $NetBSD: viaide.4,v 1.1 2003/10/08 12:02:40 bouyer 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 October 8, 2003
.Dt VIAIDE 4
.Os
.Sh NAME
.Nm viaide
.Nd AMD, NVIDIA and VIA IDE disk controllers driver
.Sh SYNOPSIS
.Cd "viaide* at pci? dev ? function ? flags 0x0000"
.Cd "options PCIIDE_AMD756_ENABLEDMA"
.Sh DESCRIPTION
The
.Nm
driver supports the following IDE controllers
and provides the interface with the hardware for the
.Ic ata
driver:
.Bl -dash -compact -offset indent
.It
Advanced Micro Devices AMD-756, 766, and 768 IDE Controllers
.It
NVIDIA nForce and nForce2
.It
VIA Technologies VT82C586, VT82C586A, VT82C596A, VT82C686A, VT8233A,
VT8235 and VT8237 IDE Controllers
.El
.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 IDE controller is wired up to the system incorrectly.
.Sh SEE ALSO
.Xr intro 4 ,
.Xr pci 4 ,
.Xr ata 4 ,
.Xr atapi 4 ,
.Xr wd 4 ,
.Xr pciide 4
.Xr wdc 4
.Sh BUGS
The AMD756 chip revision D2 has a bug affecting DMA (but not Ultra-DMA)
modes.
The workaround documented by AMD is to not use DMA on any drive which
does not support Ultra-DMA modes.
This does not appear to be necessary on all drives, the
PCIIDE_AMD756_ENABLEDMA option can be used to force multiword DMA
on the buggy revisions.
Multiword DMA can eventually be disabled on a
per-drive basis with config flags, see
.Xr wd 4 .
The bug, if triggered, will cause a total system hang.
.Pp
The timings used for the PIO and DMA modes for controllers listed above
are for a PCI bus running at 30 or 33 MHz.
This driver may not work properly on overclocked systems.