xref: /dragonfly/share/man/man4/mfi.4 (revision 3bafb5c1) 
1.\" Copyright (c) 2006 Scott Long
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25.\" $FreeBSD: src/share/man/man4/mfi.4,v 1.13 2010/05/12 17:12:38 brueffer Exp $
26.\"
27.Dd March 24, 2012
28.Dt MFI 4
29.Os
30.Sh NAME
31.Nm mfi
32.Nd "LSI MegaRAID SAS driver"
33.Sh SYNOPSIS
34To compile this driver into the kernel,
35place the following lines in your
36kernel configuration file:
37.Bd -ragged -offset indent
38.Cd "device pci"
39.Cd "device mfi"
40.Ed
41.Pp
42Alternatively, to load the driver as a
43module at boot time, place the following line in
44.Xr loader.conf 5 :
45.Bd -literal -offset indent
46mfi_load="YES"
47.Ed
48.Sh DESCRIPTION
49This driver is for LSI's next generation PCI Express SAS RAID controllers.
50Access to RAID arrays (logical disks) from this driver is provided via
51.Pa /dev/mfid?
52and access to JBOD disks is provided via
53.Pa /dev/mfisyspd?
54device nodes.
55A simple management interface is also provided on a per-controller basis via
56the
57.Pa /dev/mfi?
58device node.
59.Pp
60The
61.Nm
62name is derived from the phrase "MegaRAID Firmware Interface", which is
63substantially different than the old "MegaRAID" interface and thus requires
64a new driver.
65Older SCSI and SATA MegaRAID cards are supported by
66.Xr amr 4
67and will not work with this driver.
68.Pp
693 Gb/s and 6 Gb/s support both initiator target (IT) and integrated RAID (IR)
70firmware (see
71.Pa http://kb.lsi.com/KnowledgebaseArticle16266.aspx ) .
72The
73.Nm
74driver supports controllers with an IR image.
75At least some cards (such as the
76.Tn IBM ServeRAID M1015 )
77will attach to the
78.Xr mps 4
79driver when IT firmware is used.
80.Pp
81Two sysctls are provided to tune the
82.Nm
83driver's behavior when a request is made to remove a mounted volume.
84By default the driver will disallow any requests to remove a mounted volume.
85If the sysctl
86.Va dev.mfi.%d.delete_busy_volumes
87is set to 1,
88then the driver will allow mounted volumes to be removed.
89.Sh HARDWARE
90The
91.Nm
92driver supports the following hardware:
93.Pp
94.Bl -bullet -compact
95.It
96LSI MegaRAID SAS 1078
97.It
98LSI MegaRAID SAS 8408E
99.It
100LSI MegaRAID SAS 8480E
101.It
102LSI MegaRAID SAS 9240-4i
103.It
104LSI MegaRAID SAS 9240-8i
105.It
106LSI MegaRAID SAS 9260-4i
107.It
108LSI MegaRAID SAS 9260-8i
109.It
110LSI MegaRAID SAS 9260DE-8i
111.It
112LSI MegaRAID SAS 9260-16i
113.It
114LSI MegaRAID SAS 9261-8i
115.It
116LSI MegaRAID SAS 9280-4i4e
117.It
118LSI MegaRAID SAS 9280-8e
119.It
120LSI MegaRAID SAS 9280DE-8e
121.It
122LSI MegaRAID SAS 9280-16i4e
123.It
124LSI MegaRAID SAS 9280-24i4e
125.It
126Dell PERC5
127.It
128Dell PERC6
129.It
130Dell PERC H710 Embedded
131.It
132Dell PERC H710 Adapter
133.It
134Dell PERC H710 Mini (blades)
135.It
136Dell PERC H710 Mini (monolithics)
137.It
138Dell PERC H710P Adapter
139.It
140Dell PERC H710P Mini (blades)
141.It
142Dell PERC H710P Mini (monolithics)
143.It
144Dell PERC H810 Adapter
145.It
146IBM ServeRAID M1015 SAS/SATA
147.It
148IBM ServeRAID M5015 SAS/SATA
149.It
150IBM ServeRAID-MR10i
151.It
152Intel RAID Controller SROMBSAS18E
153.It
154Intel RAID Controller RS25DB080
155.It
156Intel RAID Controller RS25NB008
157.El
158.Sh FILES
159.Bl -tag -width ".Pa /dev/mfisyspd?" -compact
160.It Pa /dev/mfid?
161array/logical disk interface
162.It Pa /dev/mfisyspd?
163JBOD disk interface
164.It Pa /dev/mfi?
165management interface
166.El
167.Sh DIAGNOSTICS
168.Bl -diag
169.It "mfid%d: Unable to delete busy device"
170An attempt was made to remove a mounted volume.
171.It "mfisyspd%d: Unable to delete busy device"
172dito for JBOD disks
173.El
174.Sh SEE ALSO
175.Xr amr 4 ,
176.Xr mps 4 ,
177.Xr pci 4 ,
178.Xr mfiutil 8
179.Sh HISTORY
180The
181.Nm
182driver first appeared in
183.Fx 6.1 .
184.Sh AUTHORS
185The
186.Nm
187driver and this manual page were written by
188.An Scott Long Aq scottl@FreeBSD.org .
189.\".Sh BUGS
190.\"The driver does not support big-endian architectures at this time.
191