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$FreeBSD: head/share/man/man4/ata.4 224949 2011-08-17 19:43:41Z mav $
.Dd August 17, 2011 .Dt ATA 4 .Os .Sh NAME .Nm ata .Nd generic ATA/SATA controller driver .Sh SYNOPSIS To compile this driver into the kernel, place the following lines in your kernel configuration file: d -ragged -offset indent .Cd "device scbus" .Cd "device ata" .Cd "options ATA_CAM" .Ed
p Alternatively, to load the driver as set of modules at boot time, place some of the following lines in .Xr loader.conf 5 : d -literal -offset indent ata_load="YES" atacard_load="YES" ataisa_load="YES" atapci_load="YES" ataacard_load="YES" ataacerlabs_load="YES" ataadaptec_load="YES" ataahci_load="YES" ataamd_load="YES" ataati_load="YES" atacenatek_load="YES" atacypress_load="YES" atacyrix_load="YES" atahighpoint_load="YES" ataintel_load="YES" ataite_load="YES" atajmicron_load="YES" atamarvell_load="YES" atamicron_load="YES" atanational_load="YES" atanetcell_load="YES" atanvidia_load="YES" atapromise_load="YES" ataserverworks_load="YES" atasiliconimage_load="YES" atasis_load="YES" atavia_load="YES" .Ed
p First line is common hardware independent code. Next three lines are generic bus-specific drivers. ataahci is AHCI driver. The rest are vendor-specific PCI drivers. ATA_CAM option should always remain in kernel configuration to make the driver work as CAM(4) subsystem module.
p The following tunables are settable from the .Xr loader 8 : l -ohang t Va hw.ata.ata_dma_check_80pin set to 0 to disable the 80pin cable check (default is 1, check the cable) t Va hint.atapci.X.msi set to 1 to allow Message Signalled Interrupts (MSI) to be used by specified PCI ATA controller, if supported. t Va hint.ata.X.devX.mode limits initial ATA mode for specified device on specified channel. t Va hint.ata.X.mode limits initial ATA mode for every device on specified channel. t Va hint.ata.X.pm_level controls SATA interface Power Management for specified channel, allowing to save some power by the cost of additional command latency. Possible values: l -tag -compact t 0 interface Power Management is disabled, default value. t 1 device is allowed to initiate PM state change, host is passive. t 2 host initiates PARTIAL PM state transition every time port becomes idle. t 3 host initiates SLUMBER PM state transition every time port becomes idle. .El Modes 2 and 3 are supported only for AHCI. .El .Sh DESCRIPTION The .Nm driver provides the CAM(4) subsystem access to ATA (IDE) and SATA ports of many generic controllers. Depending on controller, each PATA port or each one or two SATA ports are represented to CAM as a separate bus with one or two targets. Most of the bus-management details are handled by the ATA/SATA-specific transport of CAM. Connected ATA disks are handled by the ATA protocol disk peripheral driver .Xr ada 4 . ATAPI devices are handled by the SCSI protocol peripheral drivers .Xr cd 4 , .Xr da 4 , .Xr sa 4 , etc.
p Driver supports ATA and for the most of controllers ATAPI devices. Command queuing and SATA port multipliers are not supported. Device hot-plug and SATA interface power management supported only on some controllers.
p The .Nm driver can change the transfer mode when the system is up and running. See .Xr camcontrol 8 negotiate subcommand.
p 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. .Sh HARDWARE The currently supported ATA/SATA controller chips are:
p l -tag -width "Silicon Image:" -compact t Acard: ATP850P, ATP860A, ATP860R, ATP865A, ATP865R. t ALI: M5228, M5229, M5281, M5283, M5287, M5288, M5289. t AMD: AMD756, AMD766, AMD768, AMD8111, CS5536. t ATI: IXP200, IXP300, IXP400, IXP600, IXP700, IXP800. t CMD: CMD646, CMD646U2, CMD648, CMD649. t Cypress: Cypress 82C693. t Cyrix: Cyrix 5530. t HighPoint: HPT302, HPT366, HPT368, HPT370, HPT371, HPT372, HPT372N, HPT374. t Intel: 6300ESB, 31244, PIIX, PIIX3, PIIX4, ESB2, ICH, ICH0, ICH2, ICH3, ICH4, ICH5, ICH6, ICH7, ICH8, ICH9, ICH10, SCH, PCH. t ITE: IT8211F, IT8212F, IT8213F. t JMicron: JMB360, JMB361, JMB363, JMB365, JMB366, JMB368. t Marvell 88SX5040, 88SX5041, 88SX5080, 88SX5081, 88SX6041, 88SX6042, 88SX6081, 88SX6101, 88SX6102, 88SX6111, 88SX6121, 88SX6141, 88SX6145, 88SX7042. t National: SC1100. t NetCell: NC3000, NC5000. t nVidia: nForce, nForce2, nForce2 MCP, nForce3, nForce3 MCP, nForce3 Pro, nForce4, MCP51, MCP55, MCP61, MCP65, MCP67, MCP73, MCP77, MCP79, MCP89. t 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. t ServerWorks: HT1000, ROSB4, CSB5, CSB6, K2, Frodo4, Frodo8. t Silicon Image: SiI0680, SiI3112, SiI3114, SiI3124, SiI3132, SiI3512. t SiS: SIS180, SIS181, SIS182, SIS5513, SIS530, SIS540, SIS550, SIS620, SIS630, SIS630S, SIS633, SIS635, SIS730, SIS733, SIS735, SIS745, SIS961, SIS962, SIS963, SIS964, SIS965. t VIA: VT6410, VT6420, VT6421, VT82C586, VT82C586B, VT82C596, VT82C596B, VT82C686, VT82C686A, VT82C686B, VT8231, VT8233, VT8233A, VT8233C, VT8235, VT8237, VT8237A, VT8237S, VT8251, CX700, VX800, VX855, VX900. .El
p Some of above chips are also supported by the more featured .Xr ahci 4 , .Xr mvs 4 , and .Xr siis 4 drivers. If both drivers are loaded at the same time, those will have precedence.
p 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. .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. External SATA cables can be 2m long and more, but not all controllers work well on long cables, especially at high speeds. .Sh SEE ALSO .Xr ada 4 , .Xr ahci 4 , .Xr cam 4 , .Xr camcontrol 8 , .Xr cd 4 , .Xr mvs 4 , .Xr siis 4 .Sh HISTORY The .Nm driver first appeared in .Fx 4.0 . Turned into CAM(4) interface module in .Fx 9.0 . .Sh AUTHORS .An Alexander Motin .Aq mav@FreeBSD.org , .An S\(/oren Schmidt .Aq sos@FreeBSD.org .