I now have the hardware dma translation map (sgmap) working on the vs4000
workstations.  I have modified the vsbus lance attachment to work with it
(as well with older VS31000/VS2000).  (that's the buf 0x0-0xffff).  This
is a prerequisite for getting SCSI support working.

The biggest problem is that interrupt probe for the VS4000 assumed that
the lance has a valid pointer to an init block.  but since the sgmap was
nuked, there wasn't one.  So now the probe routine provides one.

Copyright (c) 1996, 1997, 1998, 1999, 2000
     The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
     The Regents of the University of California.  All rights reserved.

NetBSD 1.4T (GENERIC) #21: Fri Mar  3 23:10:34 PST 2000
     matt@cougar.local:/other/src/sys/arch/vax/compile/GENERIC

VAXstation 4000/60
cpu: KA46
cpu: turning on floating point chip
total memory = 40560 KB
avail memory = 34532 KB
using 532 buffers containing 2128 KB of memory
mainbus0 (root)
vsbus0 at mainbus0
vsbus0: 32K entry DMA SGMAP at PA 0x600000 (VA 0x80600000)
vsbus0: interrupt mask 0
le0 at vsbus0 csr 0x200e0000 vec 770 ipl 15 maskbit 1 buf 0x0-0xffff
le0: address 08:00:2b:30:a3:d4
le0: 32 receive buffers, 8 transmit buffers
le0: supplying EUI64: 08:00:2b:ff:fe:30:a3:d4
dz0 at vsbus0 csr 0x200a0000 vec 124 ipl 15 maskbit 4
dz0: 4 lines
lkc0 at dz0
asc_vsbus_match: pa=0x200c0080, va=0x8579da80
boot device: le0
root on le0
nfs_boot: trying DHCP/BOOTP
le0: starting DAD for fe80:0001::0a00:2bff:fe30:a3d4
nfs_boot: BOOTP server: 192.168.1.3
nfs_boot: my_name=cougar
nfs_boot: my_addr=192.168.1.8
nfs_boot: my_mask=255.255.255.0
nfs_boot: gateway=192.168.1.254
le0: DAD complete for fe80:0001::0a00:2bff:fe30:a3d4 - no duplicates found
root on fireball.local:/clients/cougar/root
root file system type: nfs
-- 
Matt Thomas               Internet:   matt@3am-software.com
3am Software Foundry      WWW URL:    http://www.3am-software.com/bio/matt/
Cupertino, CA             Disclaimer: I avow all knowledge of this message