2 .\" Copyright (c) 1996 Jonathan Stone.
3 .\" All rights reserved.
5 .\" Redistribution and use in source and binary forms, with or without
6 .\" modification, are permitted provided that the following conditions
8 .\" 1. Redistributions of source code must retain the above copyright
9 .\" notice, this list of conditions and the following disclaimer.
10 .\" 2. Redistributions in binary form must reproduce the above copyright
11 .\" notice, this list of conditions and the following disclaimer in the
12 .\" documentation and/or other materials provided with the distribution.
13 .\" 3. All advertising materials mentioning features or use of this software
14 .\" must display the following acknowledgement:
15 .\" This product includes software developed by Jonathan Stone.
16 .\" 4. The name of the author may not be used to endorse or promote products
17 .\" derived from this software without specific prior written permission
19 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 .\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 .\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 .\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 .\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 .\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 .\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 .\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 .\" $NetBSD: sii.4,v 1.10 2001/09/21 09:11:48 gmcgarry Exp $
40 .Cd "sii* at ibus0 addr ?"
41 .Cd "scsibus* at sii?"
45 driver provides support for the
47 SII SCSI adaptor ASIC used in
48 the DECstation 2100, 3100, and 5100, and in the VAXstation 3100.
52 is a medium-performance implementation of the SCSI-I common command set
53 supporting synchronous and asynchronous SCSI devices.
55 The SII cabling is unusual: the bulkhead connector is very similar
56 to a standard submicro wide SCSI-II connector, but has the other gender.
60 chip only supports DMA to or from a fixed window in memory.
61 The driver uses this "window" area as a bounce buffer, copying data
62 to and from the DMA region.
73 driver first appeared in