8260 and skb implementation

Allen Curtis acurtis at onz.com
Thu May 9 00:18:23 EST 2002

> > ... Do you believe moving SKB to local RAM has merit?
> ...I don't think SK bufs will because of the high processor core access.

I am not sure what you are saying here?

> > ... Any oppinion
> > about the impact on the zero-copy implementation?
> We should make the change to the receive side so this happens.  The
> transmit doesn't copy.  I just copied the code from the 8xx long ago
> and never made the change.  We can't properly do zero copy receive
> on processors that don't have coherent caches due to alignment and
> other information potentially shared in a cache line.

You would think that alignment was a common implementation concern.

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

More information about the Linuxppc-dev mailing list