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On Sat, Aug 27, 2005 at 12:13:03PM -0400, Thor Lancelot Simon wrote:
> On Sat, Aug 27, 2005 at 05:56:44PM +0200, Reinoud Zandijk wrote:
> > 
> > I wonder how i can implement sector sizes bigger than MAXBSIZE (normally 
> > around 4k AFAIK) with normal bread and bwrite calls though.
> 
> I'm sorry, what?  I am unaware of any port that has a MAXBSIZE smaller
> than 31K.

really? now where did i read this then.... a scout and a printf() tells me 
you're right though i wonder where i read this was `just' 4kb... 
interesting. Is NetBSD different from other BSD's in this? or was it a 
linux thing i read... *sigh* i need to `grep' more and read less.

> You can hand device drivers I/O requests of up to MAXPHYS in size (in
> practice, you can hand them larger requests, too, but don't do that).
> See the FFS code for examples.

more than MAXPHYS prolly won't help much as the SCSI layer will prolly 
object :)

thanks,
Reinoud


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