1 .\" Copyright (c) 2011 Alexander Motin <mav@FreeBSD.org>
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32 .Nd generic ATA/SATA controller driver
34 To compile this driver into the kernel, place the following lines in your
35 kernel configuration file:
36 .Bd -ragged -offset indent
41 Alternatively, to load the driver as set of modules at boot time,
42 place some of the following lines in
44 .Bd -literal -offset indent
52 ataacerlabs_load="YES"
60 atahighpoint_load="YES"
66 atanational_load="YES"
70 ataserverworks_load="YES"
71 atasiliconimage_load="YES"
76 The first line is for the common hardware independent code, and is a
77 prerequisite for the other modules.
78 The next three lines are generic bus-specific drivers.
79 Of the rest, ataahci is the AHCI driver.
80 The others are vendor-specific PCI drivers.
82 The following tunables are settable from the
86 set to nonzero value for forcing drivers to attach to some known AHCI-capable
87 chips even if they are configured for legacy IDE emulation (the default is 1,
89 .It Va hw.ata.ata_dma_check_80pin
90 set to 0 to disable the 80pin cable check (the default is 1, check the cable).
91 .It Va hint.atapci.X.msi
92 set to 1 to allow Message Signalled Interrupts (MSI) to be used by the
93 specified PCI ATA controller, if supported.
94 .It Va hint.ata.X.devX.mode
95 limits the initial ATA mode for the specified device on the specified channel.
96 .It Va hint.ata.X.mode
97 limits the initial ATA mode for every device on the specified channel.
98 .It Va hint.ata.X.pm_level
99 controls SATA interface Power Management for the specified channel,
100 allowing some power savings at the cost of additional command latency.
103 .Bl -tag -width 4n -offset indent -compact
105 Interface Power Management is disabled.
106 This is the default value.
108 The device is allowed to initiate a PM state change; the host is passive.
110 The host initiates a PARTIAL PM state transition every time a port becomes idle.
112 host initiates SLUMBER PM state transition every time port becomes idle.
115 Modes 2 and 3 are only supported for AHCI.
116 .It Va hint.ata. Ns Ar X Ns Va .dev Ns Ar X Ns Va .sata_rev
117 limits the initial SATA revision (speed) for the specified device
118 on the specified channel.
119 Values 1, 2 and 3 are respectively 1.5, 3 and 6Gbps.
120 .It Va hint.ata. Ns Ar X Ns Va .sata_rev
121 Same, but for every device on the specified channel.
128 subsystem access to the ATA (IDE) and SATA ports
129 of many generic controllers.
130 Depending on the controller, each PATA (IDE)
131 port or each one or two SATA ports are
132 represented to CAM as a separate bus with one or two targets.
133 Most of the bus-management details are handled by the ATA/SATA-specific
135 Connected ATA disks are handled by the ATA protocol disk peripheral driver
137 ATAPI devices are handled by the SCSI protocol peripheral drivers
143 This driver supports ATA, and for the most of controllers, ATAPI devices.
144 Command queuing and SATA port multipliers are not supported.
145 Device hot-plug and SATA interface power management is supported only on
150 driver can change the transfer mode when the system is up and running.
158 driver sets the maximum transfer mode supported by the hardware as default.
161 driver sometimes warns:
162 .Dq Sy "DMA limited to UDMA33, non-ATA66 cable or device".
166 driver has detected that the required 80 conductor cable is not present
167 or could not be detected properly,
168 or that one of the devices on the channel only accepts up
171 .Va hw.ata.ata_dma_check_80pin
172 tunable can be set to 0 to disable this check.
174 The currently supported ATA/SATA controller chips are:
176 .Bl -tag -width "Silicon Image:" -compact
178 ATP850P, ATP860A, ATP860R, ATP865A, ATP865R.
180 M5228, M5229, M5281, M5283, M5287, M5288, M5289.
182 AMD756, AMD766, AMD768, AMD8111, CS5536.
184 IXP200, IXP300, IXP400, IXP600, IXP700, IXP800.
186 CMD646, CMD646U2, CMD648, CMD649.
192 HPT302, HPT366, HPT368, HPT370, HPT371, HPT372, HPT372N, HPT374.
194 6300ESB, 31244, PIIX, PIIX3, PIIX4, ESB2, ICH, ICH0, ICH2, ICH3, ICH4, ICH5,
195 ICH6, ICH7, ICH8, ICH9, ICH10, SCH, PCH.
197 IT8211F, IT8212F, IT8213F.
199 JMB360, JMB361, JMB363, JMB365, JMB366, JMB368.
201 88SX5040, 88SX5041, 88SX5080, 88SX5081, 88SX6041, 88SX6042, 88SX6081, 88SE6101,
202 88SE6102, 88SE6111, 88SE6121, 88SE6141, 88SE6145, 88SX7042.
208 nForce, nForce2, nForce2 MCP, nForce3, nForce3 MCP, nForce3 Pro, nForce4,
209 MCP51, MCP55, MCP61, MCP65, MCP67, MCP73, MCP77, MCP79, MCP89.
211 PDC20246, PDC20262, PDC20263, PDC20265, PDC20267, PDC20268, PDC20269, PDC20270,
212 PDC20271, PDC20275, PDC20276, PDC20277, PDC20318, PDC20319, PDC20371, PDC20375,
213 PDC20376, PDC20377, PDC20378, PDC20379, PDC20571, PDC20575, PDC20579, PDC20580,
214 PDC20617, PDC20618, PDC20619, PDC20620, PDC20621, PDC20622, PDC40518, PDC40519,
217 HT1000, ROSB4, CSB5, CSB6, K2, Frodo4, Frodo8.
219 SiI0680, SiI3112, SiI3114, SiI3124, SiI3132, SiI3512.
221 SIS180, SIS181, SIS182, SIS5513, SIS530, SIS540, SIS550, SIS620, SIS630,
222 SIS630S, SIS633, SIS635, SIS730, SIS733, SIS735, SIS745, SIS961, SIS962,
223 SIS963, SIS964, SIS965.
225 VT6410, VT6420, VT6421, VT82C586, VT82C586B, VT82C596, VT82C596B, VT82C686,
226 VT82C686A, VT82C686B, VT8231, VT8233, VT8233A, VT8233C, VT8235, VT8237,
227 VT8237A, VT8237S, VT8251, CX700, VX800, VX855, VX900.
230 Some of above chips are also supported by the more featured
236 If both drivers are loaded at the same time, those will have precedence.
238 Unknown ATA chipsets are supported in PIO modes, and if the standard
239 busmaster DMA registers are present and contain valid setup, DMA is
240 also enabled, although the max mode is limited to UDMA33, as it is
241 not known what the chipset can do and how to program it.
243 Please remember that in order to use UDMA4/ATA66 and above modes you
245 use 80 conductor cables.
246 Please assure that ribbon cables are no longer than 45cm.
247 In case of rounded ATA cables, the length depends on the
248 quality of the cables.
249 SATA cables can be up to 1m long according to the specification.
250 External SATA cables can be 2m long and more, but not all controllers
251 work well on long cables, especially at high speeds.
263 driver first appeared in
271 .Aq mav@FreeBSD.org ,