Re: Is sendfile all that sexy?

[Andre Hedrick]

On Fri, 19 Jan 2001, Roman Zippel wrote:

> Hi,
> 
> On Thu, 18 Jan 2001, Linus Torvalds wrote:
> 
> > > I agree, it's device dependent, but such hardware exists.
> > 
> > Show me any practical case where the hardware actually exists.
> 
> http://www.augan.com
> 
> > I do not know of _any_ disk controllers that let you map the controller
> > buffers over PCI. Which means that with current hardware, you have to
> > assume that the disk is the initiator of the PCI-PCI DMA requests. Agreed?

Err, first-party DMA devices do this, I think.
I do have some of these on the radar map.

Andre Hedrick
Linux ATA Development