1.\" Copyright (c) 2000 Scott Long 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD$ 26.Dd February 22, 2001 27.Dt AAC 4 28.Os 29.Sh NAME 30.Nm aac 31.Nd Adaptec AdvancedRAID Controller driver 32.Sh SYNOPSIS 33.Cd options AAC_COMPAT_LINUX 34.Cd options AAC_DEBUG=N 35.Cd device pci 36.Cd device aac 37.Sh DESCRIPTION 38The 39.Nm 40driver provides support for the Adaptec AAC family SCSI Ultra2 and Ultra160 41RAID controllers. 42These controllers support RAID 0, 1, 5, 10, and volume sets. 43They have four channels in the add-in version 44or 1-2 channels in the motherboard integrated version, 45and are most often found relabelled by Dell or Hewlett-Packard. 46Supported controllers include: 47.Bl -bullet 48.It 49AAC-364 50.It 51AAC-3642 52.It 53HP NetRAID 4M 54.It 55Dell PERC 2/Si 56.It 57Dell PERC 2/QC 58.It 59Dell PERC 3/Si 60.It 61Dell PERC 3/Di 62.Pp 63.El 64Access to RAID containers is available via the 65.Pa /dev/aacd? 66device nodes. 67Individual drives cannot be accessed 68unless they are part of a container or volume set, 69and non-fixed disks cannot be accessed. 70Containers can be configured by using 71either the on-board BIOS utility of the card, 72or a Linux-based management application. 73.Pp 74The 75.Pa /dev/aac? 76device nodes provide access to the management interface of the controller. 77One node exists per installed card. The aliases 78.Pa /dev/afa? 79and 80.Pa /dev/hpn? 81exist for the Dell and HP flavors, respectively, and are required for 82the CLI management utility available from these vendors to work. 83Compiling the driver with the 84.Dv AAC_COMPAT_LINUX 85option enables the Linux-compatible 86.Xr ioctl 2 87interface for the management device. 88The 89.Xr ioctl 2 90command set is heavily tailored to existing linux applications. 91Native 92.Xr ioctl 2 93support is not present at this time. 94.Sh FILES 95.Bl -tag -width /boot/kernel/aac.ko -compact 96.It Pa /dev/aac? 97aac management interface 98.It Pa /dev/aacd? 99disk/container interface 100.It Pa /boot/kernel/aac.ko 101aac loadable module 102.El 103.Sh DIAGNOSTICS 104Compiling with 105.Dv AAC_DEBUG 106set to a number between 0 and 3 107will enable increasingly verbose debug messages. 108.Pp 109The adapter can send status and alert messages asynchronously 110to the driver. These messages are printed on the system console, 111and are also queued for retrieval by a management application. 112.Sh SEE ALSO 113.Xr kld 4 , 114.Xr linux 4 , 115.Xr kldload 8 116.Sh HISTORY 117The 118.Nm 119driver first appeared in 120.Fx 4.3 121and is 122.Ud 123.Sh AUTHORS 124.An Mike Smith 125.Aq msmith@FreeBSD.org 126.An Scott Long 127.Aq scottl@FreeBSD.org 128.Sh BUGS 129This driver has not been tested on Alpha, though it should work. 130.Pp 131The controller is not actually paused on suspend/resume. 132.Pp 133Adapter-initiated messages are not returned back to the controller, 134possibly causing a resource leak on the controller. 135.Pp 136Unloading and reloading the driver as a kernel loadable module 137without rebooting the system is strongly discouraged. 138.Pp 139Only the Linux-compatible 140.Xr ioctl 2 141interface is implemented at this time. 142This is not a bug, but native 143.Xr ioctl 2 144support is desirable. 145