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 November 28, 2014 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. 65.Pp 66Older SCSI and SATA MegaRAID cards are supported by 67.Xr amr 4 68and will not work with this driver. 69Likewise, newer LSI MegaRAID SAS controllers are supported by 70.Xr mrsas 4 71and will not work with this driver. 72.Pp 733 Gb/s and 6 Gb/s support both initiator target (IT) and integrated RAID (IR) 74firmware (see 75.Pa http://kb.lsi.com/KnowledgebaseArticle16266.aspx ) . 76The 77.Nm 78driver supports controllers with an IR image. 79At least some cards (such as the 80.Tn IBM ServeRAID M1015 ) 81will attach to the 82.Xr mps 4 83driver when IT firmware is used. 84.Pp 85Two sysctls are provided to tune the 86.Nm 87driver's behavior when a request is made to remove a mounted volume. 88By default the driver will disallow any requests to remove a mounted volume. 89If the sysctl 90.Va dev.mfi.%d.delete_busy_volumes 91is set to 1, 92then the driver will allow mounted volumes to be removed. 93To not detach the mfid device for a busy volume that is deleted, set the 94sysctl 95.Va dev.mfi.%d.keep_deleted_volumes 96to 1. 97.Sh LOADER TUNABLES 98.Bl -tag -width indent 99.It Va hw.mfi.msi.enable 100By default, the driver will use MSI if it is supported. 101This behavior can be turned off by setting this tunable to 0. 102.El 103.Sh HARDWARE 104The 105.Nm 106driver supports the following hardware: 107.Pp 108.Bl -bullet -compact 109.It 110LSI MegaRAID SAS 1078 111.It 112LSI MegaRAID SAS 8408E 113.It 114LSI MegaRAID SAS 8480E 115.It 116LSI MegaRAID SAS 9240-4i 117.It 118LSI MegaRAID SAS 9240-8i 119.It 120LSI MegaRAID SAS 9260-4i 121.It 122LSI MegaRAID SAS 9260-8i 123.It 124LSI MegaRAID SAS 9260DE-8i 125.It 126LSI MegaRAID SAS 9260-16i 127.It 128LSI MegaRAID SAS 9261-8i 129.It 130LSI MegaRAID SAS 9280-4i4e 131.It 132LSI MegaRAID SAS 9280-8e 133.It 134LSI MegaRAID SAS 9280DE-8e 135.It 136LSI MegaRAID SAS 9280-16i4e 137.It 138LSI MegaRAID SAS 9280-24i4e 139.It 140Dell PERC5 141.It 142Dell PERC6 143.It 144Dell PERC H710 Embedded 145.It 146Dell PERC H710 Adapter 147.It 148Dell PERC H710 Mini (blades) 149.It 150Dell PERC H710 Mini (monolithics) 151.It 152Dell PERC H710P Adapter 153.It 154Dell PERC H710P Mini (blades) 155.It 156Dell PERC H710P Mini (monolithics) 157.It 158Dell PERC H810 Adapter 159.It 160IBM ServeRAID M1015 SAS/SATA 161.It 162IBM ServeRAID M5015 SAS/SATA 163.It 164IBM ServeRAID-MR10i 165.It 166Intel RAID Controller SROMBSAS18E 167.It 168Intel RAID Controller RS25DB080 169.It 170Intel RAID Controller RS25NB008 171.El 172.Sh FILES 173.Bl -tag -width ".Pa /dev/mfisyspd?" -compact 174.It Pa /dev/mfid? 175array/logical disk interface 176.It Pa /dev/mfisyspd? 177JBOD disk interface 178.It Pa /dev/mfi? 179management interface 180.El 181.Sh DIAGNOSTICS 182.Bl -diag 183.It "mfid%d: Unable to delete busy device" 184An attempt was made to remove a mounted volume. 185.It "mfisyspd%d: Unable to delete busy device" 186dito for JBOD disks 187.El 188.Sh SEE ALSO 189.Xr amr 4 , 190.Xr mps 4 , 191.Xr mrsas 4 , 192.Xr pci 4 , 193.Xr mfiutil 8 194.Sh HISTORY 195The 196.Nm 197driver first appeared in 198.Fx 6.1 . 199.Sh AUTHORS 200The 201.Nm 202driver and this manual page were written by 203.An Scott Long Aq Mt scottl@FreeBSD.org . 204.\".Sh BUGS 205.\"The driver does not support big-endian architectures at this time. 206