Re: HEAD UP: non-MPSAFE network drivers to be disabled


On May 27, 2008, at 1:49 PM, Julian Elischer wrote:

Marcel Moolenaar wrote:
On May 27, 2008, at 10:50 AM, Julian Elischer wrote:
Marcel Moolenaar wrote:
On May 27, 2008, at 1:12 AM, Julian Elischer wrote:
judging by the bug reports when things get broken there are still a
lot of people connected to the internet via dial up lines in places
off the beaten track, and still a lot of people who when travelling
do use dialup still. Some of these also use mpd. I can not say how many plan to keep using this in the future but it may be that the simplest answer is a completely separate sio driver that
just has netgraph hooks. I haven't talked with Ed yet but there
may be may ways to solve this problem.
Take a look at uart(4). It has been designed to allow different
kernel interfaces. It currently supports TTYs and keyboards. It
should not be too hard to have it hook into netgraph.
FYI,


While this is a good idea on it's own, the difference between
what that achieves and what a line discipline achieves is that
a line disciplin is hardware independent and can even be used
on a virtual device.
True, but you said:
"... the simplest answer is a completely separate sio driver...".
This, besides not being true, is just as hardware dependent as
uart(4) is. It seems to me that you've conveniently changed the
subject to match your point of view :-)


yep :-)

we need to decide if the aim is to support just serial
ports or any 'tty'.


Agreed. ucom(4) is in scope...

--
Marcel Moolenaar
xcllnt@xxxxxxx



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