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.TH AHCI 4D "Sep 10, 2009"
.SH NAME
ahci \- Advanced Host Controller Interface SATA controller driver
.SH SYNOPSIS
.LP
.nf
\fBsata@unit-address\fR
.fi

.SH DESCRIPTION
.sp
.LP
The \fBahci\fR driver is a SATA framework-compliant HBA driver that supports
SATA HBA controllers that are compatible with the \fIAdvanced Host Controller
Interface 1.0\fR specification. AHCI is an Intel-developed protocol that
describes the register-level interface for host controllers for serial ATA 1.0a
and Serial ATA II. The \fIAHCI 1.0\fR specification describes the interface
between the system software and the host controller hardware.
.sp
.LP
The \fBahci\fR driver currently supports the Intel ICH6/7/8/9/10, VIA vt8251
and JMicron AHCI controllers which are compliant with the Advanced Host
Controller Interface 1.0 specification. The Intel ICH6/7/8/9 and VIA vt8251
controllers support standard SATA features. The \fBahci\fR driver currently
supports hard disk, ATAPI DVD, ATAPI tape, ATAPI disk (i.e. Dell RD1000),
hotplug, NCQ (Native command queuing) and Port multipliers (Silicon Image
3726/4726). Power management is not yet supported.
.SH CONFIGURATION
.sp
.LP
The \fBahci\fR module contains no user configurable parameters.
.SH FILES
.sp
.ne 2
.na
\fB\fB/kernel/drv/ahci\fR\fR
.ad
.sp .6
.RS 4n
32-bit \fBELF\fR kernel module (x86).
.RE

.sp
.ne 2
.na
\fB\fB/kernel/drv/amd64/ahci\fR\fR
.ad
.sp .6
.RS 4n
64-bit \fBELF\fR kernel module (x86).
.RE

.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(7) for descriptions of the following attribute:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
_
Architecture	x86
.TE

.SH SEE ALSO
.sp
.LP
.BR sata (4D),
.BR cfgadm (8),
.BR cfgadm_sata (8),
.BR prtconf (8)
.sp
.LP
\fIAdvanced Host Controller Interface 1.0\fR
.sp
.LP
\fIWriting Device Drivers\fR
.SH NOTES
.sp
.LP
To bind the \fBahci\fR driver to your controller, choose the [AHCI] BIOS
option.
.sp
.LP
Note that booting is not supported if toggle exists between the [IDE] and
[AHCI] BIOS options