ATA(4) | Device Drivers Manual | ATA(4) |
NAME¶
ata
—
generic ATA/SATA controller driver
SYNOPSIS¶
To compile this driver into the kernel, place the following lines in your kernel configuration file:device scbus
device ata
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"
- hw.ahci.force
- set to nonzero value for forcing drivers to attach to some known AHCI-capable chips even if they are configured for legacy IDE emulation (the default is 1, force the attach).
- hw.ata.ata_dma_check_80pin
- set to 0 to disable the 80pin cable check (the default is 1, check the cable).
- hint.atapci.X.msi
- set to 1 to allow Message Signalled Interrupts (MSI) to be used by the specified PCI ATA controller, if supported.
- hint.ata.X.devX.mode
- limits the initial ATA mode for the specified device on the specified channel.
- hint.ata.X.mode
- limits the initial ATA mode for every device on the specified channel.
- hint.ata.X.pm_level
- controls SATA interface Power Management for the specified channel,
allowing some power savings at the cost of additional command latency.
Possible values:
- 0
- Interface Power Management is disabled. This is the default value.
- 1
- The device is allowed to initiate a PM state change; the host is passive.
- 2
- The host initiates a PARTIAL PM state transition every time a port becomes idle.
- 3
- host initiates SLUMBER PM state transition every time port becomes idle.
- hint.ata.X.devX.sata_rev
- limits the initial SATA revision (speed) for the specified device on the specified channel. Values 1, 2 and 3 are respectively 1.5, 3 and 6Gbps.
- hint.ata.X.sata_rev
- Same, but for every device on the specified channel.
DESCRIPTION¶
Theata
driver gives the
CAM(4) subsystem access to the ATA (IDE) and SATA
ports of many generic controllers. Depending on the controller, each PATA
(IDE) 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 ada(4). ATAPI
devices are handled by the SCSI protocol peripheral drivers
cd(4), da(4),
sa(4), etc.
This 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 is supported only on some controllers.
The ata
driver can change the transfer mode
when the system is up and running. See the
negotiate
subcommand of
camcontrol(8).
The ata
driver sets the maximum transfer mode
supported by the hardware as default. However, the
ata
driver sometimes warns:
“DMA limited to UDMA33, non-ATA66 cable or
device”. This means that the ata
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
hw.ata.ata_dma_check_80pin tunable can be set
to 0 to disable this check.
HARDWARE¶
The currently supported ATA/SATA controller chips are:- Acard:
- ATP850P, ATP860A, ATP860R, ATP865A, ATP865R.
- ALI:
- M5228, M5229, M5281, M5283, M5287, M5288, M5289.
- AMD:
- AMD756, AMD766, AMD768, AMD8111, CS5536.
- ATI:
- IXP200, IXP300, IXP400, IXP600, IXP700, IXP800.
- CMD:
- CMD646, CMD646U2, CMD648, CMD649.
- Cypress:
- Cypress 82C693.
- Cyrix:
- Cyrix 5530.
- HighPoint:
- HPT302, HPT366, HPT368, HPT370, HPT371, HPT372, HPT372N, HPT374.
- Intel:
- 6300ESB, 31244, PIIX, PIIX3, PIIX4, ESB2, ICH, ICH0, ICH2, ICH3, ICH4, ICH5, ICH6, ICH7, ICH8, ICH9, ICH10, SCH, PCH.
- ITE:
- IT8211F, IT8212F, IT8213F.
- JMicron:
- JMB360, JMB361, JMB363, JMB365, JMB366, JMB368.
- Marvell
- 88SX5040, 88SX5041, 88SX5080, 88SX5081, 88SX6041, 88SX6042, 88SX6081, 88SE6101, 88SE6102, 88SE6111, 88SE6121, 88SE6141, 88SE6145, 88SX7042.
- National:
- SC1100.
- NetCell:
- NC3000, NC5000.
- nVidia:
- nForce, nForce2, nForce2 MCP, nForce3, nForce3 MCP, nForce3 Pro, nForce4, MCP51, MCP55, MCP61, MCP65, MCP67, MCP73, MCP77, MCP79, MCP89.
- 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.
- ServerWorks:
- HT1000, ROSB4, CSB5, CSB6, K2, Frodo4, Frodo8.
- Silicon Image:
- SiI0680, SiI3112, SiI3114, SiI3124, SiI3132, SiI3512.
- SiS:
- SIS180, SIS181, SIS182, SIS5513, SIS530, SIS540, SIS550, SIS620, SIS630, SIS630S, SIS633, SIS635, SIS730, SIS733, SIS735, SIS745, SIS961, SIS962, SIS963, SIS964, SIS965.
- VIA:
- VT6410, VT6420, VT6421, VT82C586, VT82C586B, VT82C596, VT82C596B, VT82C686, VT82C686A, VT82C686B, VT8231, VT8233, VT8233A, VT8233C, VT8235, VT8237, VT8237A, VT8237S, VT8251, CX700, VX800, VX855, VX900.
NOTES¶
Please remember that in order to use UDMA4/ATA66 and above modes you 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.SEE ALSO¶
ada(4), ahci(4), cam(4), camcontrol(8), cd(4), mvs(4), siis(4)HISTORY¶
Theata
driver first appeared in
FreeBSD 4.0. It was turned into a
CAM(4) interface module in
FreeBSD 9.0.
AUTHORS¶
Alexander Motin ⟨mav@FreeBSD.org⟩,Søren Schmidt ⟨sos@FreeBSD.org⟩
October 3, 2012 | Debian |