Re: PCI DMA to small buffers on cache-incoherent arch

From: Oliver Neukum (
Date: Wed Jun 12 2002 - 07:08:26 EST

Am Mittwoch, 12. Juni 2002 13:47 schrieb David S. Miller:
> From: William Jhun <>
> Date: Mon, 10 Jun 2002 11:07:40 -0700
> On Sun, Jun 09, 2002 at 09:27:05PM -0700, David S. Miller wrote:
> > I'm trying to specify this such that knowledge of cachelines and
> > whatnot don't escape the arch specific code, ho hum... Looks like
> > that isn't possible.
> Perhaps provide macros in asm/pci.h that will:
> You don't understand, I think. I want to avoid the drivers doing
> any of the "align this, align that" stuff. I want the allocation
> to do it for them, that way the code is in one place.

That means that all buffers must be allocated seperately.
Is it worth that ? How about skbuffs ?


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

This archive was generated by hypermail 2b29 : Sat Jun 15 2002 - 22:00:25 EST