90 lines
2.9 KiB
Groff
90 lines
2.9 KiB
Groff
.\"
|
|
.\" Copyright (c) 1998, 2000
|
|
.\" Justin T. Gibbs. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. The name of the author may not be used to endorse or promote products
|
|
.\" derived from this software withough specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd February 13, 2000
|
|
.Dt ADW 4 i386
|
|
.Os FreeBSD
|
|
.Sh NAME
|
|
.Nm adw
|
|
.Nd Advansys PCI 16bit SCSI Host adapter driver
|
|
.Sh SYNOPSIS
|
|
.Cd controller pci
|
|
.Cd controller adw
|
|
.Pp
|
|
For one or more SCSI busses:
|
|
.Cd controller scbus0 at adw0
|
|
.Sh DESCRIPTION
|
|
This driver provides access to the 16bit
|
|
.Tn SCSI
|
|
bus connected to the Advanced Systems Products, Inc.
|
|
.Tn ASC3550 Ultra,
|
|
and
|
|
.Tn ASC38C0800 Ultra2,
|
|
SCSI Host Adapter chips.
|
|
AdvanSys products incorporating these chips include the
|
|
.Tn ABP[3]940UW,
|
|
.Tn ABP950UW,
|
|
.Tn ABP970UW,
|
|
.Tn ABP3940U2W,
|
|
and
|
|
.Tn ABP3950U2W.
|
|
Both chips support, synchronous transfers
|
|
.Pq 20MHz and 40MHz max respectively ,
|
|
16bit transfers, tagged queueing,
|
|
and up to 253 concurrent SCSI transactions.
|
|
.Pp
|
|
Per target configuration performed in the
|
|
.Tn AdvanceWare
|
|
menu, which is accessible at boot,
|
|
is honored by this driver.
|
|
This includes synchronous/asynchronous transfers,
|
|
maximum synchronous negotiation rate, wide transfers, disconnection,
|
|
tagged queueing, and the host adapter's SCSI ID.
|
|
The global setting for the maximum number of tagged transactions allowed
|
|
per target is not honored as the CAM SCSI system will automatically determine
|
|
the maximum number of tags a device can receive as well as guarantee fair
|
|
resource allocation among devices.
|
|
.Sh SEE ALSO
|
|
.Xr adv 4 ,
|
|
.Xr cd 4 ,
|
|
.Xr da 4 ,
|
|
.Xr sa 4 ,
|
|
.Xr scsi 4
|
|
.Sh AUTHORS
|
|
The
|
|
.Nm
|
|
driver was ported by
|
|
.An Justin T. Gibbs
|
|
from the Linux driver written by
|
|
.An Bob Frey
|
|
of Advanced System Products, Inc.
|
|
Many thanks to AdvanSys for providing the original driver
|
|
under a suitable license for use in FreeBSD.
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
driver appeared in
|
|
.Fx 3.0 .
|