.\"	$NetBSD: mfi.4,v 1.12.8.1 2022/05/17 10:29:47 bouyer Exp $
.\"	$OpenBSD: mfi.4,v 1.7 2006/09/01 09:58:09 jmc Exp $
.\"
.\" Written by Marco Peereboom <marco@peereboom.us>
.\"
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.Dd May 5, 2022
.Dt MFI 4
.Os
.Sh NAME
.Nm mfi
.Nd LSI Logic & Dell MegaRAID SAS RAID controller
.Sh SYNOPSIS
.Cd "mfi* at pci? dev ? function ?"
.Sh DESCRIPTION
The
.Nm
driver provides support for the MegaRAID SAS family of RAID controllers,
including:
.Pp
.Bl -dash -offset indent -compact
.It
Dell PERC 5/e,
PERC 5/i,
PERC 6/e,
PERC 6/i,
PERC H310,
PERC H700,
PERC H800
.It
Intel RAID Controller SRCSAS18E,
SRCSAS144E
.It
LSI Logic MegaRAID SAS 8208ELP,
MegaRAID SAS 8208XLP,
MegaRAID SAS 8300XLP,
MegaRAID SAS 8308ELP,
MegaRAID SAS 8344ELP,
MegaRAID SAS 8408E,
MegaRAID SAS 8480E,
MegaRAID SAS 8708ELP,
MegaRAID SAS 8880EM2,
MegaRAID SAS 8888ELP,
MegaRAID SAS 9260-8i,
MegaRAID SAS 9261-8i,
MegaRAID SAS 9265-8i
.It
IBM ServeRAID M1015,
ServeRAID M5014
.El
.Pp
These controllers support RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, RAID 50 and
RAID 60 using either SAS or SATA II drives.
.Pp
Although the controllers are actual RAID controllers,
the driver makes them look just like SCSI controllers.
All RAID configuration is done through the controllers' BIOSes.
.Pp
.Nm
supports monitoring of the logical disks in the controller through the
.Xr bioctl 8
and
.Xr envstat 8
commands.
.Sh EVENTS
The
.Nm
driver is able to send events to
.Xr powerd 8
if a logical drive in the controller is not online.
The
.Em state-changed
event will be sent to the
.Pa /etc/powerd/scripts/sensor_drive
script when such condition happens.
.Sh SEE ALSO
.Xr intro 4 ,
.Xr pci 4 ,
.Xr scsi 4 ,
.Xr sd 4 ,
.Xr bioctl 8 ,
.Xr envstat 8 ,
.Xr powerd 8
.Sh HISTORY
The
.Nm
driver first appeared in
.Nx 4.0 .