1.\" Copyright (c) 2006 Scott Long 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD: src/share/man/man4/mfi.4,v 1.13 2010/05/12 17:12:38 brueffer Exp $ 26.\" 27.Dd April 7, 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 LOADER TUNABLES 90.Bl -tag -width indent 91.It Va hw.mfi.msi.enable 92By default, the driver will use MSI if it is supported. 93This behavior can be turned off by setting this tunable to 0. 94.El 95.Sh HARDWARE 96The 97.Nm 98driver supports the following hardware: 99.Pp 100.Bl -bullet -compact 101.It 102LSI MegaRAID SAS 1078 103.It 104LSI MegaRAID SAS 8408E 105.It 106LSI MegaRAID SAS 8480E 107.It 108LSI MegaRAID SAS 9240-4i 109.It 110LSI MegaRAID SAS 9240-8i 111.It 112LSI MegaRAID SAS 9260-4i 113.It 114LSI MegaRAID SAS 9260-8i 115.It 116LSI MegaRAID SAS 9260DE-8i 117.It 118LSI MegaRAID SAS 9260-16i 119.It 120LSI MegaRAID SAS 9261-8i 121.It 122LSI MegaRAID SAS 9280-4i4e 123.It 124LSI MegaRAID SAS 9280-8e 125.It 126LSI MegaRAID SAS 9280DE-8e 127.It 128LSI MegaRAID SAS 9280-16i4e 129.It 130LSI MegaRAID SAS 9280-24i4e 131.It 132Dell PERC5 133.It 134Dell PERC6 135.It 136Dell PERC H710 Embedded 137.It 138Dell PERC H710 Adapter 139.It 140Dell PERC H710 Mini (blades) 141.It 142Dell PERC H710 Mini (monolithics) 143.It 144Dell PERC H710P Adapter 145.It 146Dell PERC H710P Mini (blades) 147.It 148Dell PERC H710P Mini (monolithics) 149.It 150Dell PERC H810 Adapter 151.It 152IBM ServeRAID M1015 SAS/SATA 153.It 154IBM ServeRAID M5015 SAS/SATA 155.It 156IBM ServeRAID-MR10i 157.It 158Intel RAID Controller SROMBSAS18E 159.It 160Intel RAID Controller RS25DB080 161.It 162Intel RAID Controller RS25NB008 163.El 164.Sh FILES 165.Bl -tag -width ".Pa /dev/mfisyspd?" -compact 166.It Pa /dev/mfid? 167array/logical disk interface 168.It Pa /dev/mfisyspd? 169JBOD disk interface 170.It Pa /dev/mfi? 171management interface 172.El 173.Sh DIAGNOSTICS 174.Bl -diag 175.It "mfid%d: Unable to delete busy device" 176An attempt was made to remove a mounted volume. 177.It "mfisyspd%d: Unable to delete busy device" 178dito for JBOD disks 179.El 180.Sh SEE ALSO 181.Xr amr 4 , 182.Xr mps 4 , 183.Xr pci 4 , 184.Xr mfiutil 8 185.Sh HISTORY 186The 187.Nm 188driver first appeared in 189.Fx 6.1 . 190.Sh AUTHORS 191The 192.Nm 193driver and this manual page were written by 194.An Scott Long Aq Mt scottl@FreeBSD.org . 195.\".Sh BUGS 196.\"The driver does not support big-endian architectures at this time. 197