Today I'm playing with MI SCSI driver for 98658 adaptor on HP382.
I copy and modify sys/dev/ic/mb89352.c, and it just works
with PIO and polling. Now I'm trying to use interrupt, but
it does not generate any interrupt on selecting etc.

According to hp300/dev/scsi.c, it seems that 98658 adaptor
does not generate any interrupt and only DIO DMAC can generate it.
Does this mean 98658 cannot handle disconnect and timeout etc.
and we always have to use polling even it can generate
interrupts after each DMA transfers?
Or should we write a special driver for it?
---
Izumi Tsutsui
tsutsui@ceres.dti.ne.jp

>> NetBSD/hp300 Primary Boot, Revision 1.12
>> (tsutsui@delica, Wed Oct 10 02:16:00 JST 2001)
>> HP 9000/380 SPU
>> Enter "reset" to reset system.
Boot: [[[sd1a:]netbsd][-a][-c][-d][-s][-v][-q]] :- netbsd.spc -s
1239365+37248+169808 [228512+86140]=0x1b00d0
Start @ 0xfe803400 [1=0xfe965218-0x1b00d0]...
Entry point: 0xfe803400
[ using 315064 bytes of netbsd ELF symbol table ]
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001
    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 1.5Y (SPC) #11: Sat Oct 13 23:03:28 JST 2001
    tsutsui@mirage:/usr/src/sys/arch/hp300/compile/SPC
HP 9000/380 (25MHz MC68040 CPU+MMU+FPU, 4k on-chip physical I/D caches)
cpu: delay divisor 30, mmuid 11
total memory = 24564 KB
avail memory = 19708 KB
using 332 buffers containing 1328 KB of memory
Parity detection enabled
hilconfig: unknown keyboard type 0x2, using default
hil1: US ASCII keyboard
mainbus0 (root)
intio0 at mainbus0
dio0 at mainbus0: 98620C, 2 channels, 32 bit DMA
nhpib0 at dio0 scode 7 ipl 3: internal HP-IB
hpibbus0 at nhpib0
ppi0 at hpibbus0 slave 5 punit 0
dca0 at dio0 scode 9 ipl 5: console, working fifo
internal parallel at dio0 scode 12 not configured
spc0 at dio0 scode 14 ipl 4
scsibus0 at spc0: 8 targets, 8 luns per target
le0 at dio0 scode 21 ipl 5: address 08:00:09:18:d8:d2
le0: 8 receive buffers, 2 transmit buffers
WARNING: select code size unknown for id = 0x39 secid = 0x10
device id = 0x39 secid = 0x10 at dio0 scode 132 not configured
WARNING: select code size unknown for id = 0x39 secid = 0x10
device id = 0x39 secid = 0x10 at dio0 scode 133 not configured
WARNING: select code size unknown for id = 0x1 secid = 0x0
device id = 0x1 secid = 0x0 at dio0 scode 134 not configured
WARNING: select code size unknown for id = 0x1 secid = 0x0
device id = 0x1 secid = 0x0 at dio0 scode 135 not configured
interrupt levels: bio = 4, net = 5, tty = 5
scsibus0: waiting 2 seconds for devices to settle...
sd0 at scsibus0 target 0 lun 0: <TEAC, FC-1     HF   07, RV A> SCSI1 0/direct removable
sd0: 1280 KB, 80 cyl, 2 head, 32 sec, 256 bytes/sect x 5120 sectors
sd1 at scsibus0 target 1 lun 0: <CONNER, CP3500-540MB-3.5, 323> SCSI2 0/direct fixed
sd1: 518 MB, 1807 cyl, 12 head, 49 sec, 512 bytes/sect x 1062516 sectors
boot device: sd1
root on sd1a dumps on sd1b
root file system type: ffs
Enter pathname of shell or RETURN for sh: 
We recommend creating a non-root account and using su(1) for root access.
# dd if=/dev/rsd1a of=/dev/null bs=64k
^C193+0 records in
193+0 records out
12648448 bytes transferred in 24.795 secs (510120 bytes/sec)
#