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32 .Nd SiliconImage Serial ATA Host Controller driver
34 To compile this driver into the kernel,
35 place the following lines in your
36 kernel configuration file:
37 .Bd -ragged -offset indent
43 Alternatively, to load the driver as a
44 module at boot time, place the following line in
46 .Bd -literal -offset indent
50 The following tunables are settable from the
53 .It Va hint.siis. Ns Ar X Ns Va .msi
54 controls Message Signaled Interrupts (MSI) usage by the specified controller.
55 .It Va hint.siisch. Ns Ar X Ns Va .pm_level
56 controls SATA interface Power Management for the specified channel,
57 allowing some power to be saved at the cost of additional command
62 interface Power Management is disabled (default);
64 device is allowed to initiate PM state change, host is passive.
66 Note that interface Power Management is not compatible with
67 device presence detection.
68 A manual bus reset is needed on device hot-plug.
69 .It Va hint.siisch. Ns Ar X Ns Va .sata_rev
70 setting to nonzero value limits maximum SATA revision (speed).
71 Values 1, 2 and 3 are respectively 1.5, 3 and 6Gbps.
74 This driver provides the
76 subsystem with native access to the
79 Each SATA port is represented to CAM as a separate bus with 16 targets.
80 Most of the bus-management details are handled by the SATA-specific
82 Connected ATA disks are handled by the ATA protocol disk peripheral driver
84 ATAPI devices are handled by the SCSI protocol peripheral drivers
90 Driver features include support for Serial ATA and ATAPI devices,
91 Port Multipliers (including FIS-based switching), hardware command queues
92 (31 command per port), Native Command Queuing, SATA interface Power Management,
93 device hot-plug and Message Signaled Interrupts.
95 Same hardware is also supported by the atasiliconimage driver from
98 If both drivers are loaded at the same time, this one will be
99 given precedence as the more functional of the two.
103 driver supports the following controllers:
122 driver first appeared in
125 .An Alexander Motin Aq mav@FreeBSD.org .