1.\" 2.\" Copyright (c) 2004 3ware, Inc. 3.\" Copyright (c) 2000 BSDi 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25.\" 26.\" $FreeBSD: head/share/man/man4/twa.4 208027 2010-05-13 12:07:55Z uqs $ 27.\" 28.Dd July 8, 2012 29.Dt TWA 4 30.Os 31.Sh NAME 32.Nm twa 33.Nd 3ware 9000/9500/9550/9650 series SATA RAID controllers driver 34.Sh SYNOPSIS 35To compile this driver into the kernel, 36place the following lines in your 37kernel configuration file: 38.Bd -ragged -offset indent 39.Cd "device scbus" 40.Cd "device twa" 41.Ed 42.Pp 43Alternatively, to load the driver as a 44module at boot time, place the following line in 45.Xr loader.conf 5 : 46.Bd -literal -offset indent 47twa_load="YES" 48.Ed 49.Sh DESCRIPTION 50The 51.Nm 52driver provides support for AMCC's 3ware 9000/9500/9550/9650 series 53SATA controllers. 54.Pp 55These controllers are available in 4, 8, 12 or 16-port configurations, 56and support the following RAID levels: 0, 1, 10, 5, 50. 57The device nodes for the controllers are of the form 58.Pa /dev/twa Ns Ar X , 59where 60.Ar X 61is the controller number. 62The driver is implemented as a SCSI SIM 63under CAM, and, as such, the logical units that it controls are accessible 64via the device nodes, 65.Pa /dev/da Ns Ar Y , 66where 67.Ar Y 68is the logical unit number. 69.Sh LOADER TUNABLES 70.Bl -tag -width indent 71.It Va hw.twa.msi.enable 72To use MSI (if supported), set this tunable to 1. 73The default is 0. 74.El 75.Sh HARDWARE 76The 77.Nm 78driver supports the following SATA RAID controllers: 79.Pp 80.Bl -bullet -compact 81.It 82AMCC's 3ware 9500S-4LP 83.It 84AMCC's 3ware 9500S-8 85.It 86AMCC's 3ware 9500S-8MI 87.It 88AMCC's 3ware 9500S-12 89.It 90AMCC's 3ware 9500S-12MI 91.It 92AMCC's 3ware 9500SX-4LP 93.It 94AMCC's 3ware 9500SX-8LP 95.It 96AMCC's 3ware 9500SX-12 97.It 98AMCC's 3ware 9500SX-12MI 99.It 100AMCC's 3ware 9500SX-16ML 101.It 102AMCC's 3ware 9550SX-4LP 103.It 104AMCC's 3ware 9550SX-8LP 105.It 106AMCC's 3ware 9550SX-12 107.It 108AMCC's 3ware 9550SX-12MI 109.It 110AMCC's 3ware 9550SX-16ML 111.It 112AMCC's 3ware 9650SE-2LP 113.It 114AMCC's 3ware 9650SE-4LPML 115.It 116AMCC's 3ware 9650SE-8LPML 117.It 118AMCC's 3ware 9650SE-12ML 119.It 120AMCC's 3ware 9650SE-16ML 121.It 122AMCC's 3ware 9650SE-24M8 123.El 124.Sh DIAGNOSTICS 125Whenever the driver encounters a command failure, it prints out an error code in 126the format: 127.Qq Li "ERROR: (<error source>: <error code>):" , 128followed by a text description of the error. 129There are other error messages and warnings that the 130driver prints out, depending on the kinds of errors that it encounters. 131If the driver is compiled with 132.Dv TWA_DEBUG 133defined, it prints out a whole bunch of debug 134messages, the quantity of which varies depending on the value assigned to 135.Dv TWA_DEBUG 136(0 to 10). 137.Sh SEE ALSO 138.Xr da 4 , 139.Xr twe 4 , 140.Xr tws 4 141.Sh AUTHORS 142The 143.Nm 144driver and manpage were written by 145.An Vinod Kashyap Aq Mt vkashyap@FreeBSD.org . 146