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DPT(4) NetBSD Kernel Interfaces Manual DPT(4)
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dpt -- DPT EATA SCSI adapter driver
dpt* at isa? port ? irq ? dma ?
dpt* at eisa? slot ?
dpt* at pci? dev ? function ?
scsibus* at dpt?
The dpt driver provides support for third and fourth generation DPT SCSI
controllers. All communication with the controllers is conducted via the
EATA (Enhanced AT Bus Attachment) protocol.
DPT adapters examine and interpret all SCSI commands received before
passing them to any underlying physical device(s). In this way, caching,
RAID and other transformations are achieved while remaining transparent
to the host operating system.
The dpt driver provides support for the adapters listed below. Later
models are supported by the iop driver.
DPT SmartCache III
DPT SmartCache IV
DPT SmartRAID III
DPT SmartRAID IV
/dev/dptu control device for unit u
None of these messages should be encountered under normal circumstances.
It should be noted that the list below is not complete.
dpt%d: readcfg failed - see dpt(4)
The EATA configuration data did not appear upon request. This
may be caused by older firmware. Generally the solution is to
power-cycle the affected machine.
dpt%d: spurious intr
A spurious interrupt was received from the HBA.
dpt%d: bogus status (returned CCB id NNNN)
A corrupt or incomplete status packet was received from the HBA.
cd(4), ch(4), dpti(4), intro(4), iop(4), scsi(4), sd(4), st(4)
The sysutils/dptutil package.
CAM committee standard CAM/89-004 - the EATA (Enhanced AT Bus Attachment)
The dpt driver first appeared in NetBSD 1.4.2.
EATA adapters other than listed may function correctly with the dpt
driver, however a definitive list is not available.
Older boards that do not support scatter-gather I/O or DMA are not sup-
ECC formatted disk and arrays (i.e. with a sector size of 528 bytes) do
not work correctly with the PM2041 and certain firmware revisions of the
NetBSD 9.99 December 7, 2002 NetBSD 9.99
Modified for NetBSD
by Kimmo Suominen