On 2024-02-12 19:46, Anders Magnusson wrote:
Den 2024-02-12 kl. 05:11, skrev Izumi Tsutsui:ragge@ wrote:and even src/sys/arch/vax/uba/dmf.c has not been ported from 4.4BSD? https://man.netbsd.org/vax/dmf.4Hm, I try to recapture more about this :-) I used DMF32 on 750's in the mid-90's. Compiling the driver from 4BSD was trivial back then, but it could not be checked in in NetBSD due to the licensing issues. There is no need to revert anything, better to try to be as similar as possible as other ports.Sure, I guess then there is no actual user (except you :-) of dmf(4) with tty[EFGH][0-7] nodes. I'll update src/etc/etc.vax/MAKEDEV.conf to clarify how these tty[EFGH] should be handled: - explicitly comment out dmf(4) (and dmz(4)) entries - denote that tty[EFGH] were reserved for dmf(4) but it had not been imported, so now tty[EFGH] are used by MI wscons - new tty node names should be assigned once dmf(4) is committedYes, please do so.Hm, I do not think that any VAXen that supports DMF32 can have wscons, so they are sort of mutually exclusive :-)
Indeed. Maybe it would be possible to keep both and let them both use ttyE?
I asked core@ some years ago if the MBA routines from 4BSD could be checked in, but they responded that the licensing issues were unfortunately still unclear.Hmm. I guess there are a lot of cleanup task to update 4.4BSD derived sources for modern NetBSD, so maybe it's worth to rewrite it based on qvaux.c etc.? It looks most vax serial drivers call tty(4) layer functions (t_linesw->l_rint() and t_linesw->l_start() etc.) from interrupt handlers, but I guess nowadays we have to use softint(9) to avoid MI locking issue. I had several trouble on luna68k and updated sio(4) driver derived from 4.4BSD to use softint(9): https://github.com/NetBSD/src/commit/bc63cd4Quite unlikely that someone would bother writing a device driver for it. To test DMF32 a "big" vax is needed; since those are Unibus cards.I assume that they are quite uncommon these days (I assume Johnny Billquist may have one? :-) )
I do, and you might not remember, but you helped get it running on Update's 8650 something like 15 years ago. So I seem to remember we actually had this working on NetBSD at one point. But never checked in, as you mentioned.
Johnny
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