> - store/pull the private "struct local *" pointer into/from
> iodesc->io_netif->nif_driver->netif_ifs[iodesc->io_netif->nif_unit].dif_private
>  rather than iodesc->io_netif itself (which seems used for
>  debug code in MI libsa)

That part needs re-consider.  LIBSA nif_driver must be renovated since it was
a leftover from sun3/260 age network HW.

> (BTW I don't like this name... VTODMAADDR() is preferred?)

Please do not  introduce too much NetBSD-ism into LIBSA category.  My whole
intention is "be terse and good enough."

Toru Nishimura/ALKYL Technology