DSSI support for NetBSD: request for docs.

From: Johnny Billquist <bqt_at_update.uu.se>
Date: Wed Feb 27 07:12:39 2002

On Wed, 27 Feb 2002, Jochen Kunz wrote:

> On Wed, Feb 27, 2002 at 12:03:49PM +0100, Johnny Billquist wrote:
>
> > :-) I have a bunch of UDA50, both for my PDP-11s, and for the 8650.
> Hmpf. I need the machine for a UDA50. Don't you have a PDP 11/70
> handy? ;-)

I might. Can you affort the transport? :-)

> > However, the Ultrix driver is a beautiful beast. When you declare an MSCP
> > disk, you don't say where it's located. You just say:
> > disk ra<x> at mscp drive <y>
> >
> > Controllers are declared as:
> > controller uda0 at uba0
> > controller uq0 at uda0
> > controller hsc0 at ci0
> >
> > And then the disks can be either at hsc0 or uq0, and you can move them
> > without problems.
> > DSSI is yet another, and so on...
> This is also true for NetBSD. From my knowledge the shebang should
> be build like this:

[...]

I'll have to blame my bad memory for still living in the old ra driver...

> > True. And also, the NetBSD RA support have some bug in it, along with
> > being very much tied to the UDA50/KDA50 right now.
> As Ragge already stated, at least the last objection is not true
> anymore. The NetBSD MSCP stuff resides now in sys/dev/mscp what means
> that it is machine independent. This also implies proper abstraction
> of the MSCP stuff from the underlieing controller hardware.

You both are probably absolutely correct, so I withdraw my claims. :-)
Now I only wish I had some time to try finding the bugs in the mscp
driver...

        Johnny

Johnny Billquist || "I'm on a bus
                                  || on a psychedelic trip
email: bqt_at_update.uu.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
Received on Wed Feb 27 2002 - 07:12:39 GMT