Subject: RE: Kernel device driver
To: 'Paul Mather' <paul@gromit.dlib.vt.edu>
From: David Woyciesjes <DAW@yalepress3.unipress.yale.edu>
List: port-alpha
Date: 09/12/2000 16:56:23
Paul ---
Sounds like you need the services of Wasabi Systems, Inc.
>>> http://www.wasabisystems.com/ <<<
They're a new commercial-grade NetBSD service and support company... I just
found out about it myself today...
I just sounded like a commercial, didn't I? Eeek...
--- David A Woyciesjes
--- C & IS Support Specialist
--- Yale University Press
--- mailto:david.woyciesjes@yale.edu
--- (203) 432-0953
--- ICQ # - 905818
> -----Original Message-----
> From: Paul Mather [SMTP:paul@gromit.dlib.vt.edu]
> Sent: Tuesday, September 12, 2000 4:34 PM
> To: port-alpha@netbsd.org
> Subject: Kernel device driver
>
> I apologise in advance that this is probably not the best place to post
> this, but I know there are a number of kernel hackers on port-alpha,
> and, at the very least, they can tell me a better place to seek a
> solution.
>
> I need to develop a kernel device driver---something akin to the vnd
> pseudo device, but that works over a TCP/IP socket, instead of with a
> local file. The remote end of the socket is some custom API (over which
> I have no control) acting as a front-end for some custom storage bricks
> (again, over which I have no control). The object of the driver is to
> provide a block-device abstraction on which filesystems may be created
> (a la vnd, raid).
>
> My dilemma is this: what is the best platform under which to develop
> such a device driver? I have a personal fondness for NetBSD (I run
> NetBSD/{alpha,pmax} at home, so you know where my biases lie), but I
> notice there appears to be a dearth of information about kernel
> developing for NetBSD. Well, a dearth compared to Linux, at any
> rate. Looking for information, I found lots of tutorials and
> information for Linux kernel development, and there seem to be lots of
> file systems out there in the field, including a "network block
> device," which appears similar to what I need (just have to retool the
> other end).
>
> My boss naturally gravitated towards Linux from the get-go (being the
> higher profile OS in the public eye), but the ultimate decision is mine.
> However, I need to be able to justify it. Although I prefer NetBSD, my
> gut feeling is that I would have an easier time developing under Linux
> because of the greater availability of support material. (For BSD, I
> have the red BSD4.4 book, and that's about it.) Also, there are some
> folks locally with kernel filesystem development experience under Linux,
> so they'd be a handy local resource.
>
> I have no prior hands-on kernel developing experience, so I'm looking
> for something with the easiest learning curve, but which ultimately
> yields a good end result. (The multi-platform aspect of NetBSD is a big
> plus in its favour, IMHO!)
>
> So, can I get some honest advice, here? E-mail me privately, if you
> prefer. I don't want this to become an OS advocacy flame-fest. Like I
> said, my heart belongs to NetBSD... :-)
>
> (Also, if anyone knows of NetBSD kernel development resources, let me
> know of those, too!)
>
> Cheers,
>
> Paul.
>
> e-mail: paul@gromit.dlib.vt.edu
>
> "Without music to decorate it, time is just a bunch of boring production
> deadlines or dates by which bills must be paid."
> --- Frank Vincent Zappa