Subject: Re: [PATCH: 2.6.13-15-SMP 3/3] network: concurrently runsoftirqnetwork code on SMP

From: jamal <[email-masked]>
Date: Tue, 25 Sep 2007 18:22:24 -0400

On Tue, 2007-25-09 at 09:03 -0700, Stephen Hemminger wrote:

> There is a standard hash called RSS, that many drivers support because it is
> used by other operating systems. 

I think any stateless/simple thing will do (something along the lines
what 802.1ad does for trunk, a 5 classical five tuple etc).

Having solved the reordering problem in such a stateless way introduces
a loadbalancing setback; you may end sending all your packets to one cpu
(a problem Mr Ye didnt have when he was re-orderding ;->).

cheers,
jamal