>
> >Looking at 7990 chip docs (main chip on lance card) it seems like there
> are
> >more features
> >not implemented; e.g. 1.6ms timer is needed to implement "normal"
> >transmission.
>
> It could be worthwhile to check if lance (Am7990) and pcnet (Am79C970A)
> drivers could be merged. This was discussed briefly some years ago:
> http://lists.gnu.org/archive/html/qemu-devel/2004-10/msg00364.html
>

Yes, a quick look shows 79c970a has one rx/tx buffer management mode which
is software-compatible with 7990 chip (SWMODE=0) There may be more
backward-compatibility bits to be unified. Anyone? :)