Subject: Re: MAXPHYS
To: Thor Lancelot Simon <tls@rek.tjls.com>
From: None <wojtek@wojtek.from.pl>
List: port-i386
Date: 02/04/2001 22:26:57
> > page-aligned).
> 
> So, if I increase MAXPHYS, this should increase, too, right?  pciide
> still doesn't work -- I thought, from reading the driver, that the hardware
> had a 64K constraint.  No?
as i remember now IDE could transfer maximum of 128 or 256 sectors per
request and it's hardware limit.

another question - how disk's write cache (512kB in my seagate, more in
IBM's IDE  drives) works? i think it should cluster 2-4 64kB write request
before doing it. or maybe netbsd do not activate writecache?