Re: VAXstation 3100/30 KA420 SCSI DMA problem on netboot (and fix)

[Ken Wellsch <kwellsch%tampabay.rr.com@localhost>]

On Mon, Feb 19, 2024 at 10:57:17PM +0900, Izumi Tsutsui wrote:
> 
> Maybe we should check if SCSI DMA transfers work on netboot
> (i.e. firmware sets proper DMA mode on netboot or not) on KA43 m76..

Alright, finally, here we go with what I found from an m76 netboot.

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>>> boot esa0


-ESA0
>> NetBSD/vax boot [1.12 (Tue Feb  6 12:38:53 UTC 2024)] <<
>> Press any key to abort autoboot 5
Trying BOOTP
Using IP address: 192.168.44.8
myip:  (192.168.44.8)
root addr=192.168.44.9 path=/export/client/root/
> boot netbsd
3558040+185792 [249312+235863]=0x408ba0
[   1.0000000] Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
[   1.0000000]     2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
[   1.0000000]     2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023,
[   1.0000000]     2024
[   1.0000000]     The NetBSD Foundation, Inc.  All rights reserved.
[   1.0000000] Copyright (c) 1982, 1986, 1989, 1991, 1993
[   1.0000000]     The Regents of the University of California.  All rights reserved.

[   1.0000000] NetBSD 10.0_RC4 (GENERIC) #1: Sun Feb 18 08:51:17 EST 2024
[   1.0000000]  netbsd@z440d:/home/netbsd/obj.vax/sys/arch/vax/compile/GENERIC
[   1.0000000] VAXstation 3100/m76

	...

[   1.0000000] si0 at vsbus0 csr 0x200c0080 vec 770 ipl 17 maskbit 1
[   1.0000000] Dumping KA420_SCD region
[   1.0000000] 0x200C00A0: 00 00 00 00 FF FF FF FF FF FF FF FF FF FF FF FF
[   1.0000000] 0x200C00B0: 00 00 00 00 FF FF FF FF FF FF FF FF FF FF FF FF
[   1.0000000] 0x200C00C0: 00 00 00 00 00 00 00 00 FF FF FF FF FF FF FF FF
[   1.0000000] 0x200C00D0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[   1.0000000] 0x200C00E0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[   1.0000000] 0x200C00F0: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
[   1.0000000] si0: NCR5380, SCSI ID 6
[   1.0000000] scsibus0 at si0: 8 targets, 8 luns per target

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