2 .\"Copyright (c) 2010, 2011 iXsystems, Inc.
3 .\"All rights reserved.
4 .\" written by: Xin LI <delphij@FreeBSD.org>
6 .\"Redistribution and use in source and binary forms, with or without
7 .\"modification, are permitted provided that the following conditions
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.
15 .\"THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 .\"ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 .\"IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 .\"ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 .\"FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 .\"DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 .\"OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 .\"HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 .\"LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 .\"OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 .Nd 3ware 9750 SATA+SAS 6Gb/s RAID controller card driver
36 To compile this driver into the kernel,
37 place the following lines in your
38 kernel configuration file:
39 .Bd -ragged -offset indent
44 Alternatively, to load the driver as a
45 module at boot time, place the following line in
47 .Bd -literal -offset indent
53 driver provides support for LSI's 3ware 9750 SATA+SAS 6Gb/s RAID controller cards.
55 These controllers feature the LSISAS2108 6Gb/s SAS RAID-on-Chip (ROC)
56 and are available in 4- and 8-port configurations, supports RAID levels
57 0, 1, 5, 6, 10, 50 and single disk, with 96 SATA and/or SAS hard drives and SSDs.
59 For further hardware information, see
60 .Pa http://www.lsi.com/.
64 driver supports the following SATA/SAS RAID controller:
68 LSI's 3ware SAS 9750 series
71 Tunables can be set at the
73 prompt before booting the kernel or stored in
75 .Bl -tag -width "hw.tws.use_32bit_sgls"
76 .It Va hw.tws.cam_depth
77 The maximium queued CAM SIM requests for one controller.
78 The default value is 256.
79 .It Va hw.tws.enable_msi
80 This tunable enables MSI support on the controller if set to a non-zero value.
81 The default value is 0.
82 .It Va hw.tws.queue_depth
83 The maximium queued requests for one controller.
84 .It Va hw.tws.use_32bit_sgls
85 Limit the driver to use only 32-bit SG elements regardless whether the operating
86 system is running in 64-bit mode.
87 The default value is 0.
90 .Bl -tag -width ".Pa /dev/tws?" -compact
92 array/logical disk interface
97 Whenever the driver encounters a command failure, it prints out an error code in
99 .Qq Li "ERROR: (<error source>: <error code>):" ,
100 followed by a text description of the error.
101 There are other error messages and warnings that the
102 driver prints out, depending on the kinds of errors that it encounters.
103 If the driver is compiled with
105 defined, it prints out a whole bunch of debug
114 driver was written by
115 .An Manjunath Ranganathaiah
116 for LSI and this manual page was written by
117 .An Xin LI Aq delphij@FreeBSD.org