[lkml]   [2000]   [Sep]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: the new VMt
On Mon, 25 Sep 2000, Alan Cox wrote:

> > > > Stupidity has no limits...
> > >
> > > Unfortunately its frequently wired into the hardware to save a few cents on
> > > scatter gather logic.
> >
> > Since when hardware folks became exempt from the rule above? 128K is
> > almost tolerable, there were requests for 64 _mega_bytes...
> Most cheap ass PCI hardware is built on the basis you can do linear 4Mb
> allocations. There is a reason for this. You can do that 4Mb allocation on
> NT or Windows 9x

Sure about that? It's been a while, but I seem to recall NT enforcing a
scatter-gather framework on all drivers because it only gave them virtual
allocations. For the cheaper cards, the s-g was done by software issuing
single span requests to the card.

"Love the dolphins," she advised him. "Write by W.A.S.T.E.."

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
Please read the FAQ at

 \ /
  Last update: 2005-03-22 12:38    [W:0.206 / U:2.148 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site