DPT(4) MidnightBSD Kernel Interfaces Manual DPT(4)

NAME

dpt — DPT RAID Controller SCSI driver

SYNOPSIS

For one or more EISA Controllers

device eisa
device dpt

For one or more PCI Controllers

device pci
device dpt

To allow PCI adapters to use memory mapped I/O if enabled:

options DPT_ALLOW_MEMIO

DESCRIPTION

The dpt driver supports DPT RAID SCSI controllers.

SmartRAID (PM3???) are "Enterprise" class cards, and SmartCache (PM2???) cards are in the "Workstation" class. The Gen 4 Smart Cache IV products were a re-issue of the Gen 3 utilizing upgraded (and cheaper to produce) silicon. The PM3334 (Smart RAID III) was not revamped as there was no upgraded silicon (68040 processor) and it was using the best DPT made. Note there has been customer confusion over the faster enterprise class card supported by this driver being an older generation. The Gen5 cards are supported by the asr(4) driver.

HARDWARE

The dpt driver provides support for the following RAID adapters:

DPT Smart Cache Plus

Smart Cache II (PM2?2?, PM2022 [EISA], PM2024/PM2124 [PCI]) (Gen2)

Smart RAID II (PM3?2?, PM3021, PM3222)

Smart Cache III (PM2?3?)

Smart RAID III (PM3?3?, PM3332 [EISA], PM3334UW [PCI]) (Gen3)

Smart Cache IV (PM2?4?, PM2042 [EISA], PM2044/PM2144 [PCI]) (Gen4)

Smart RAID IV

FILES
sys/dev/dpt/dpt_scsi.c

Core Driver Implementation

sys/dev/dpt/dpt.h

Register Set and Core Driver Data Structures

sys/dev/dpt/dpt_pci.c

PCI Bus Driver Attachment

sys/dev/dpt/dpt_eisa.c

EISA Bus Driver Attachment

SEE ALSO

cd(4), ch(4), da(4), sa(4), scsi(4)

HISTORY

The dpt driver first appeared in FreeBSD 2.2.6.

AUTHORS

The dpt driver was written by Simon Shapiro and ported to the CAM SCSI system by Justin T. Gibbs.

MidnightBSD 0.3 July 4, 2004 MidnightBSD 0.3