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diff --git a/share/man/man4/ata.4 b/share/man/man4/ata.4 new file mode 100644 index 000000000000..34d782b7a9c8 --- /dev/null +++ b/share/man/man4/ata.4 @@ -0,0 +1,239 @@ +.\" +.\" Copyright (c) 2003 Søren Schmidt <sos@FreeBSD.org> +.\" All rights reserved. +.\" +.\" 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, +.\" without modification, immediately at the beginning of the file. +.\" 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. 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. +.\" +.\" $FreeBSD$ +.\" +.Dd October 4, 2008 +.Dt ATA 4 +.Os +.Sh NAME +.Nm ata , +.Nm ar , +.Nm acd , +.Nm ad , +.Nm afd , +.Nm ast +.Nd generic ATA/ATAPI disk controller driver +.Sh SYNOPSIS +For ISA based ATA/ATAPI support: +.Cd device isa +.Cd device ata +.Pp +In +.Pa /boot/device.hints : +.Cd hint.ata.0.at="isa" +.Cd hint.ata.0.port="0x1f0" +.Cd hint.ata.0.irq="14" +.Cd hint.ata.1.at="isa" +.Cd hint.ata.1.port="0x170" +.Cd hint.ata.1.irq="15" +.Pp +For PC98 based ATA/ATAPI support: +.Cd device isa +.Cd device ata +.Pp +In +.Pa /boot/device.hints : +.Cd hint.atacbus.0.at="isa" +.Cd hint.atacbus.0.port="0x640" +.Cd hint.atacbus.0.irq="9" +.Pp +For PCI based ATA/ATAPI support: +.Cd device pci +.Cd device ata +.Pp +To support ATA compliant disk drives: +.Cd device atadisk +.Pp +To support ATA software RAID's: +.Cd device ataraid +.Pp +To support ATAPI CDROM, DVD and CD/DVD burner drives: +.Cd device atapicd +.Pp +To support ATAPI floppy drives: +.Cd device atapifd +.Pp +To support ATAPI tape drives: +.Cd device atapist +.Pp +The following tunables are settable from the loader: +.Bl -ohang +.It Va hw.ata.ata_dma +set to 1 for DMA access, 0 for PIO (default is DMA). +.It Va hw.ata.ata_dma_check_80pin +set to 0 to disable the 80pin cable check (default is 1, check the cable) +.It Va hw.ata.atapi_dma +set to 1 for DMA access, 0 for PIO (default is DMA). +.It Va hw.ata.wc +set to 1 to enable Write Caching, 0 to disable (default is enabled). +.Em WARNING : +can cause data loss on power failures and crashes. +.El +.Sh DESCRIPTION +The +.Nm +driver provides access to ATA (IDE) and SerialATA disk drives, +ATAPI CDROM/DVD drives, ZIP/LS120 ATAPI drives and ATAPI tape drives +connected to controllers according to the ATA/ATAPI standards. +.Pp +The currently supported ATA/SATA controller chips are: +.Pp +.Bl -tag -width "Silicon Image:" -compact +.It Acard: +ATP850P, ATP860A, ATP860R, ATP865A, ATP865R. +.It ALI: +M5229, M5281, M5287, M5288, M5289. +.It AMD: +AMD756, AMD766, AMD768, AMD8111, CS5536. +.It ATI: +IXP200, IXP300, IXP400. +.It CMD: +CMD646, CMD646U2, CMD648, CMD649. +.It Cypress: +Cypress 82C693. +.It Cyrix: +Cyrix 5530. +.It HighPoint: +HPT302, HPT366, HPT368, HPT370, HPT371, HPT372, HPT372N, HPT374. +.It Intel: +6300ESB, 31244, PIIX, PIIX3, PIIX4, ESB2, ICH, ICH0, ICH2, ICH3, ICH4, ICH5, ICH6, ICH7, ICH8, ICH9, ICH10. +.It ITE: +IT8211F, IT8212F, IT8213F. +.It JMicron: +JMB360, JMB361, JMB363, JMB365, JMB366, JMB368. +.It Marvell +88SX5040, 88SX5041, 88SX5080, 88SX5081, 88SX6041, 88SX6081, 88SX6101, 88SX6141. +.It National: +SC1100. +.It NetCell: +NC3000, NC5000. +.It nVidia: +nForce, nForce2, nForce2 MCP, nForce3, nForce3 MCP, nForce3 Pro, nForce4. +.It Promise: +PDC20246, PDC20262, PDC20263, PDC20265, PDC20267, PDC20268, PDC20269, PDC20270, PDC20271, PDC20275, PDC20276, PDC20277, PDC20318, PDC20319, PDC20371, PDC20375, PDC20376, PDC20377, PDC20378, PDC20379, PDC20571, PDC20575, PDC20579, PDC20580, PDC20617, PDC20618, PDC20619, PDC20620, PDC20621, PDC20622, PDC40518, PDC40519, PDC40718, PDC40719. +.It ServerWorks: +HT1000, ROSB4, CSB5, CSB6, K2, Frodo4, Frodo8. +.It Silicon Image: +SiI0680, SiI3112, SiI3114, SiI3124, SiI3132, SiI3512. +.It SiS: +SIS180, SIS181, SIS182, SIS5513, SIS530, SIS540, SIS550, SIS620, SIS630, SIS630S, SIS633, SIS635, SIS730, SIS733, SIS735, SIS745, SIS961, SIS962, SIS963, SIS964, SIS965. +.It VIA: +VT6410, VT6420, VT6421, VT82C586, VT82C586B, VT82C596, VT82C596B, VT82C686, VT82C686A, VT82C686B, VT8231, VT8233, VT8233A, VT8233C, VT8235, VT8237, VT8237A, VT8237S, VT8251. +.El +.Pp +Unknown ATA chipsets are supported in PIO modes, and if the standard +busmaster DMA registers are present and contain valid setup, DMA is +also enabled, although the max mode is limited to UDMA33, as it is +not known what the chipset can do and how to program it. +.Pp +The +.Nm +driver can change the transfer mode and various other parameters +when the system is up and running. +See +.Xr atacontrol 8 . +.Pp +The +.Nm +driver sets the maximum transfer mode supported by the hardware as default. +However the +.Nm +driver sometimes warns: +.Dq Sy "DMA limited to UDMA33, non-ATA66 cable or device". +This means that +the +.Nm +driver has detected that the required 80 conductor cable is not present +or could not be detected properly, +or that one of the devices on the channel only accepts up +to UDMA2/ATA33. +The +.Va hw.ata.ata_dma_check_80pin +tunable can be set to 0 to disable this check. +.Pp +Unknown ATAPI devices are initialized to DMA mode if the +.Va hw.ata.atapi_dma +tunable is set to 1 and they support at least UDMA33 transfers. +Otherwise they are set to PIO mode because severe DMA problems are +common even if the device capabilities indicate support. +You can always try to set DMA mode on an ATAPI device using +.Xr atacontrol 8 , +but be aware that your hardware might +.Em not +support it and can potentially +.Em hang +the entire system causing data loss. +.Sh FILES +.Bl -tag -width ".Pa /sys/i386/conf/GENERIC" -compact +.It Pa /dev/ad* +ATA disk device nodes +.It Pa /dev/ar* +ATA RAID device nodes +.It Pa /dev/acd* +ATAPI CD-ROM device nodes +.It Pa /dev/afd* +ATAPI floppy drive device nodes +.It Pa /dev/ast* +ATAPI tape drive device nodes +.It Pa /sys/i386/conf/GENERIC +sample generic kernel config file for +.Nm +based systems +.El +.Sh NOTES +Please remember that in order to use UDMA4/ATA66 and above modes you +.Em must +use 80 conductor cables. +Please assure that ribbon cables are no longer than 45cm. +In case of rounded ATA cables, the length depends on the +quality of the cables. +SATA cables can be up to 1m long according to the specification. +.Pp +Static device numbering +(enabled with the +.Dv ATA_STATIC_ID +kernel option) +reserves a number for each possibly connected disk, +even when not present. +This is useful in hotswap scenarios +where disks should always show up as the same numbered device, +and not depend on attach order. +.Pp +Native Command Queuing (NCQ) on SATA drives is not yet supported. +.Sh SEE ALSO +.Xr ataraid 4 , +.Xr atacontrol 8 , +.Xr burncd 8 +.Sh HISTORY +The +.Nm +driver first appeared in +.Fx 4.0 . +.Sh AUTHORS +.An S\(/oren Schmidt +.Aq sos@FreeBSD.org . |