110 lines
3.1 KiB
Groff
110 lines
3.1 KiB
Groff
.\"
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.\" Copyright (c) 1998 Justin T. Gibbs
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. The name of the author may not be used to endorse or promote products
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.\" derived from this software without specific prior written permission
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd November 13, 2014
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.Dt DPT 4
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.Os
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.Sh NAME
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.Nm dpt
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.Nd DPT RAID Controller SCSI driver
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.Sh SYNOPSIS
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To compile this driver into the kernel,
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place the following lines in your
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kernel configuration file:
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.Bd -ragged -offset indent
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.Cd "device scbus"
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.Cd "device dpt"
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.Pp
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For one or more PCI cards:
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.Cd "device pci"
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.Pp
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To allow PCI adapters to use memory mapped I/O if enabled:
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.Cd options DPT_ALLOW_MEMIO
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.Ed
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.Pp
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Alternatively, to load the driver as a
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module at boot time, place the following line in
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.Xr loader.conf 5 :
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.Bd -literal -offset indent
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dpt_load="YES"
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.Ed
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.Sh DESCRIPTION
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The
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.Nm
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driver supports DPT RAID SCSI controllers.
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.Pp
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SmartRAID (PM3???) are "Enterprise" class cards,
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and SmartCache (PM2???) cards are in the "Workstation" class.
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The Gen 4 Smart Cache IV products were a re-issue of the Gen 3 utilizing
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upgraded (and cheaper to produce) silicon.
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The PM3334 (Smart RAID III) was not revamped as there was no upgraded silicon
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(68040 processor) and it was using the best DPT made.
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Note there has been customer confusion over the faster enterprise class card
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supported by this driver being an older generation.
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The Gen5 cards are supported by the
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.Xr asr 4
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driver.
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.Sh HARDWARE
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The
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.Nm
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driver provides support for the following RAID adapters:
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.Pp
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.Bl -bullet -compact
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.It
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DPT Smart Cache Plus
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.It
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Smart Cache II (PM2?2?, PM2024/PM2124 [PCI]) (Gen2)
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.It
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Smart RAID II (PM3?2?, PM3021, PM3222)
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.It
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Smart Cache III (PM2?3?)
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.It
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Smart RAID III (PM3?3?, PM3334UW [PCI]) (Gen3)
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.It
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Smart Cache IV (PM2?4?, PM2044/PM2144 [PCI]) (Gen4)
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.It
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Smart RAID IV
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.El
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.Sh SEE ALSO
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.Xr asr 4 ,
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.Xr cd 4 ,
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.Xr ch 4 ,
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.Xr da 4 ,
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.Xr sa 4 ,
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.Xr scsi 4
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.Sh HISTORY
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The
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.Nm
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driver first appeared in
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.Fx 2.2.6 .
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.Sh AUTHORS
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.An -nosplit
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The
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.Nm
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driver was written by
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.An Simon Shapiro
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and ported to the CAM SCSI system by
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.An Justin T. Gibbs .
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