1.\" $NetBSD: twe.4,v 1.4 2000/11/26 17:44:12 ad Exp $ 2.\" 3.\" Copyright (c) 2000 The NetBSD Foundation, Inc. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software contributed to The NetBSD Foundation 7.\" by Andrew Doran. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 3. All advertising materials mentioning features or use of this software 18.\" must display the following acknowledgement: 19.\" This product includes software developed by the NetBSD 20.\" Foundation, Inc. and its contributors. 21.\" 4. Neither the name of The NetBSD Foundation nor the names of its 22.\" contributors may be used to endorse or promote products derived 23.\" from this software without specific prior written permission. 24.\" 25.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35.\" POSSIBILITY OF SUCH DAMAGE. 36.\" 37.Dd October 17, 2000 38.Dt TWE 4 39.Os 40.Sh NAME 41.Nm twe 42.Nd 43.Tn 3ware Escalade RAID controller driver 44.Sh SYNOPSIS 45.Cd "twe* at pci? dev ? function ?" 46.Cd options TWE_MAX_QUEUECNT=n 47.Cd options TWE_MAX_PU_QUEUECNT=n 48.Sh DESCRIPTION 49The 50.Nm 51driver provides support for the 52.Tn 3ware Escalade 53family of RAID controllers. 54Attached disk arrays are supported by the 55.Nm ld 56driver. 57.Pp 58The following kernel configuration options are available: 59.Bl -ohang 60.It Cd options TWE_MAX_QUEUECNT=n 61Set the maximum queued command count to 62.Ar n 63commands. 64The default value is 128. 65The maximum value that the underlying hardware can support is 255. 66.It Cd options TWE_MAX_PI_QUEUECNT=n 67Set the maximum per-unit queued command count to 68.Ar n 69commands. 70The default value is 32. 71.El 72.Sh SEE ALSO 73.Xr intro 4 , 74.Xr ld 4 75.Sh AUTHOR 76The 77.Nm 78driver was written by 79by Andrew Doran 80.Aq ad@netbsd.org . 81Some parts of the driver are derived from code written by Micheal Smith 82.Aq msmith@freebsd.org . 83.Sh HISTORY 84The 85.Nm twe 86driver first appeared in 87.Nx 1.6 . 88