2 .\" Copyright (c) 2010 Spectra Logic Corporation
3 .\" All rights reserved.
5 .\" Redistribution and use in source and binary forms, with or without
6 .\" modification, are permitted provided that the following conditions
8 .\" 1. Redistributions of source code must retain the above copyright
9 .\" notice, this list of conditions, and the following disclaimer,
10 .\" without modification.
11 .\" 2. Redistributions in binary form must reproduce at minimum a disclaimer
12 .\" substantially similar to the "NO WARRANTY" disclaimer below
13 .\" ("Disclaimer") and any redistribution must be conditioned upon
14 .\" including a substantially similar Disclaimer requirement for further
15 .\" binary redistribution.
18 .\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 .\" "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 .\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
21 .\" A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 .\" HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
26 .\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
27 .\" IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 .\" POSSIBILITY OF SUCH DAMAGES.
30 .\" mps driver man page.
32 .\" Author: Ken Merry <ken@FreeBSD.org>
34 .\" $Id: //depot/SpectraBSD/head/share/man/man4/mps.4#6 $
35 .\" $FreeBSD: src/share/man/man4/mps.4,v 1.12 2013/01/04 00:45:41 svnexp Exp $
42 .Nd LSI Fusion-MPT 2 Serial Attached SCSI driver
44 To compile this driver into your kernel,
45 place the following lines in your kernel configuration file:
46 .Bd -ragged -offset indent
51 Or, to load the driver as a module at boot, place the following line in
53 .Bd -literal -offset indent
59 driver provides support for LSI Logic Fusion-MPT 2
61 controllers and WarpDrive solid state storage cards.
65 driver supports the following hardware:
69 LSI Logic SAS2004 (4 Port
72 LSI Logic SAS2008 (8 Port
75 LSI Logic SAS2108 (8 Port
78 LSI Logic SAS2116 (16 Port
81 LSI Logic SAS2208 (8 Port
84 LSI Logic SAS2308 (8 Port
87 LSI Logic SSS6200 Solid State Storage
89 Intel Integrated RAID Module RMS25JB040
91 Intel Integrated RAID Module RMS25JB080
93 Intel Integrated RAID Module RMS25KB040
95 Intel Integrated RAID Module RMS25KB080
98 To disable MSI interrupts for all
100 driver instances, set the following tunable value in
102 .Bd -literal -offset indent
106 .\"To disable MSI-X interrupts for all
108 .\"driver instances, set the following tunable value in
109 .\".Xr loader.conf 5 :
110 .\".Bd -literal -offset indent
111 .\"hw.mps.disable_msix=1
114 .\"To disable MSI-X interrupts for a specific
116 .\"driver instance, set the following tunable value in
117 .\".Xr loader.conf 5 :
118 .\".Bd -literal -offset indent
119 .\"hw.mpsX.disable_msix=1
122 To set the maximum number of DMA chains allocated for all adapters,
123 set the following variable in
125 .Bd -literal -offset indent
126 hw.mps.max_chains=NNNN
129 To set the maximum number of DMA chains allocated for a specific adapter,
130 set the following variable in
132 .Bd -literal -offset indent
133 hw.mpsX.max_chains=NNNN
136 This variable may also be viewed via
138 to see the maximum set for a given adapter.
140 The current number of free chain frames may be seen via the
145 The lowest number of free chain frames may be seen via the
146 hw.mpsX.chain_free_lowwater
150 The current number of active I/O commands is shown in the
151 hw.mpsX.io_cmds_active
155 The maximum number of active I/O command seen since boot is shown in the
156 hw.mpsX.io_cmds_highwater
160 To enable debugging prints from the
163 .Bd -literal -offset indent
167 variable, where X is the adapter number, either in
171 The following bits have the described effects:
172 .Bl -tag -offset indent -width "0x01"
174 Enable informational prints.
176 Enable tracing prints.
178 Enable prints for driver faults.
180 Enable prints for controller events.
196 driver first appeared in
202 driver was originally written by
203 .An Scott Long Aq Mt scottl@FreeBSD.org .
204 It has been improved and tested by LSI Logic Corporation.
205 This man page was written by
206 .An Ken Merry Aq Mt ken@FreeBSD.org .
208 This driver has a couple of known shortcomings:
211 No userland utility available (e.g.
214 The driver probes devices sequentially.
215 If your system has a large number of devices, the probe will take a while.