1 .\" $NetBSD: dpt.4,v 1.23 2006/11/13 16:33:57 ad Exp $
3 .\" Copyright (c) 1999, 2000, 2002 Andrew Doran <ad@NetBSD.org>
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35 .Cd "dpt* at isa? port ? irq ? dma ?"
36 .Cd "dpt* at eisa? slot ?"
37 .Cd "dpt* at pci? dev ? function ?"
38 .Cd "scsibus* at dpt?"
42 driver provides support for third and fourth generation DPT
44 controllers. All communication with the controllers is conducted via the
45 EATA (Enhanced AT Bus Attachment) protocol.
47 DPT adapters examine and interpret all
49 commands received before passing them to any underlying physical device(s).
50 In this way, caching, RAID and other transformations are achieved while
51 remaining transparent to the host operating system.
55 driver provides support for the adapters listed below. Later models are
60 .Bl -tag -width Dv -offset indent -compact
61 .It Tn DPT SmartCache III
62 .It Tn DPT SmartCache IV
63 .It Tn DPT SmartRAID III
64 .It Tn DPT SmartRAID IV
67 .Bl -tag -width /dev/dptn -compact
68 .It Pa /dev/dpt Ns Ar u
69 control device for unit
73 None of these messages should be encountered under normal circumstances. It
74 should be noted that the list below is not complete.
76 .Bl -tag -width indent
77 .It dpt%d: readcfg failed - see dpt(4)
78 The EATA configuration data did not appear upon request. This may be caused
79 by older firmware. Generally the solution is to power-cycle the affected
81 .It dpt%d: spurious intr
82 A spurious interrupt was received from the HBA.
83 .It dpt%d: bogus status (returned CCB id NNNN)
84 A corrupt or incomplete status packet was received from the HBA.
100 CAM committee standard CAM/89-004 - the EATA (Enhanced AT Bus Attachment)
105 driver first appeared in
108 EATA adapters other than listed may function correctly with the
110 driver, however a definitive list is not available.
112 Older boards that do not support scatter-gather I/O or DMA are not supported.
114 ECC formatted disk and arrays (i.e. with a sector size of 528 bytes) do not
115 work correctly with the PM2041 and certain firmware revisions of the PM3334.