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 $
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 interrupts for a specific
108 driver instance, set the following tunable value in
110 .Bd -literal -offset indent
111 dev.mps.X.disable_msi=1
114 where X is the adapter number.
116 To disable MSI-X interrupts for all
118 driver instances, set the following tunable value in
120 .Bd -literal -offset indent
121 hw.mps.disable_msix=1
124 To disable MSI-X interrupts for a specific
126 driver instance, set the following tunable value in
128 .Bd -literal -offset indent
129 dev.mps.X.disable_msix=1
132 where X is the adapter number.
134 To set the maximum number of DMA chains allocated for all adapters,
135 set the following variable in
137 .Bd -literal -offset indent
138 hw.mps.max_chains=NNNN
141 To set the maximum number of DMA chains allocated for a specific adapter,
142 set the following variable in
144 .Bd -literal -offset indent
145 dev.mps.X.max_chains=NNNN
148 This variable may also be viewed via
150 to see the maximum set for a given adapter.
152 The current number of free chain frames may be seen via the
157 The lowest number of free chain frames may be seen via the
158 dev.mps.X.chain_free_lowwater
162 The current number of active I/O commands is shown in the
163 dev.mps.X.io_cmds_active
167 The maximum number of active I/O command seen since boot is shown in the
168 dev.mps.X.io_cmds_highwater
172 The adapter can issue the
174 SCSI command to SATA direct-access devices during shutdown, to allow the
175 device to quiesce before being powered down.
176 To control this feature for all adapters, set the
177 .Bd -literal -offset indent
183 to one of the following values:
184 .Bl -tag -width 6n -offset indent
186 Do not send SSU to either HDDs or SSDs.
188 Send SSU to SSDs, but not to HDDs; this is the default value.
190 Send SSU to HDDs, but not to SSDs.
192 Send SSU to both HDDs and SSDs.
195 To control the feature for a specific adapter, set the following tunable
198 .Bd -literal -offset indent
202 where X is the adapter number.
203 The same set of values are valid as for all adapters.
205 To enable debugging prints from the
208 .Bd -literal -offset indent
212 variable, where X is the adapter number, either in
216 The following bits have the described effects:
217 .Bl -tag -width 6n -offset indent
219 Enable informational prints.
221 Enable tracing prints.
223 Enable prints for driver faults.
225 Enable prints for controller events.
241 driver first appeared in
247 driver was originally written by
248 .An Scott Long Aq scottl@FreeBSD.org .
249 It has been improved and tested by LSI Logic Corporation.
250 This man page was written by
251 .An Ken Merry Aq ken@FreeBSD.org .
253 This driver has a couple of known shortcomings:
256 No userland utility available (e.g.,
259 The driver probes devices sequentially.
260 If your system has a large number of devices, the probe will take a while.