.\"	$NetBSD: twe.4,v 1.4 2000/11/26 17:44:12 ad Exp $
.\"
.\" Copyright (c) 2000 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Andrew Doran.
.\"
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.\" modification, are permitted provided that the following conditions
.\" are met:
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.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
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.\"    documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\"    must display the following acknowledgement:
.\"        This product includes software developed by the NetBSD
.\"        Foundation, Inc. and its contributors.
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.\"    contributors may be used to endorse or promote products derived
.\"    from this software without specific prior written permission.
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.Dd October 17, 2000
.Dt TWE 4
.Os
.Sh NAME
.Nm twe
.Nd
.Tn 3ware Escalade RAID controller driver
.Sh SYNOPSIS
.Cd "twe* at pci? dev ? function ?"
.Cd options TWE_MAX_QUEUECNT=n
.Cd options TWE_MAX_PU_QUEUECNT=n
.Sh DESCRIPTION
The
.Nm
driver provides support for the
.Tn 3ware Escalade
family of RAID controllers.
Attached disk arrays are supported by the
.Nm ld
driver.
.Pp
The following kernel configuration options are available:
.Bl -ohang
.It Cd options TWE_MAX_QUEUECNT=n
Set the maximum queued command count to
.Ar n
commands.
The default value is 128.
The maximum value that the underlying hardware can support is 255.
.It Cd options TWE_MAX_PI_QUEUECNT=n
Set the maximum per-unit queued command count to
.Ar n
commands.
The default value is 32.
.El
.Sh SEE ALSO
.Xr intro 4 ,
.Xr ld 4
.Sh AUTHOR
The
.Nm
driver was written by
by Andrew Doran
.Aq ad@netbsd.org .
Some parts of the driver are derived from code written by Micheal Smith
.Aq msmith@freebsd.org .
.Sh HISTORY
The
.Nm twe
driver first appeared in
.Nx 1.6 .