[Simh] EXT :Re: Ultrix 4.0 and DEQNA-LOCK

[Johnny Billquist]

On 2016-09-01 14:20, Hittner, David T (IS) wrote:
> FWIW, A dated comment from someone at Digital indicating that Ultrix 4.3 treats DELQA and DELQA-Plus as DEQNA, and it is unlikely to ever change.
> http://www.verycomputer.com/7_50c10d446aeab2b0_1.htm
>
> I also see other posts showing Ultrix 4.5 also running in DEQNA-LOCK mode. Maybe Ultrix was never upgraded to use the DELQA and DELQA-Plus enhancements.

Well, as others pointed out, the normal operation/programming of the 
DEQNA and DELQA are the same.

The DELQA-PLUS is a different story. But that's not what we're dealing 
with here.

So, it really works pretty much the same no matter if it is a DEQNA or 
DELQA. The differences have more to do with some built-in MOP handling 
in the DELQA, along with the ability to perform network booting, which 
the DEQNA cannot. Also some watchdog functionality.

So yes, I would indeed expect that Ultrix would treat the DEQNA and 
DELQA the same. And if it don't have a driver for the DELQA-PLUS, it can 
run that one in normal DELQA mode as well. The DELQA-PLUS mode is 
better/more efficient, but that is the only one with a different 
programming model.

	Johnny

>
> Dave
>
> -----Original Message-----
> From: Simh [mailto:simh-bounces at trailing-edge.com] On Behalf Of Cory Smelosky
> Sent: Wednesday, August 31, 2016 10:37 PM
> Cc: simh at trailing-edge.com
> Subject: EXT :Re: [Simh] Ultrix 4.0 and DEQNA-LOCK
>
> On Wed, 31 Aug 2016, Johnny Billquist wrote:
>
>> Hi.
>>
>> On 2016-08-31 17:40, Cory Smelosky wrote:
>>
>>>> Cory, could you post the output from showing the device in simh?
>>>> I wonder if there might be some confusion about how to turn off lock
>>>> mode. I've never even tried modifying that. By default, I would
>>>> assume it would be correctly configured, meaning it should work
>>>> right if you don't try to "fix it".
>>>
>>> I am doing SET DEQNALOCK to OFF, and SHOW XQ (in my initial posting
>>> shows that IIRC) with it in DELQA mode, and later on after probing
>>> and initialising it, despite DEQNALOCK set to OFF and showing as OFF,
>>> SHOW XQ shows it has reverted to being in DEQNA mode.
>>
>> No. You initial posting showed the dmesg output, but not the simh
>> input or output, unless I'm very confused.
>>
>> 	Johnny
>>
>
> set xq en
> set xq deqnalock=off
> set xq type=delqa
> at xq vde:/tmp/vde
>
> (BOOT/R5:0 DUA0
> Simulation stopped, PC: 2004CBD9 (CMPW (R5)+,28(SP))
> sim> show xq
> XQ      address=20001920-2000192F, no vector, MAC=08:00:2B:6D:9C:95
>          type=DELQA, polling=disabled, sanity=OFF
>          throttle=disabled, DEQNALock=OFF, leds=(ON,ON,ON)
>          attached to vde:/tmp/vde
>
> sim> c
> [...]
> qe0: DEC DELQA Ethernet Interface DEQNA-lock Mode, hardware address
> 08:00:2b:6d:9c:95
> dz0 at uba0 csr 160100 vec 300, ipl 17
> dz1 at uba0 csr 160110 vec 310, ipl 17
> dz2 at uba0 csr 160120 vec 320, ipl 17
> dz3 at uba0 csr 160130 vec 330, ipl 17
>
> Simulation stopped, PC: 80003551 (BEQL 800034F0)
> sim> show xq
> XQ      address=20001920-2000192F, vector=3F4*, MAC=08:00:2B:6D:9C:95
>          type=DELQA, mode=DEQNA, polling=disabled, sanity=OFF
>          throttle=disabled, DEQNALock=OFF, leds=(ON,ON,ON)
>          attached to vde:/tmp/vde
>
> --
> Cory Smelosky
> http://gewt.net Personal stuff
> http://gimme-sympathy.org Projects
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