Patrick McHardy wrote:

One good thing about ESFQ is the more flexible flow classification, but
I don't like the concept of having a set of selectable hash functions
very much.

These patches change SFQ to allow attaching external classifiers and add
a new "flow" classifier that allows to classify flows based on an arbitary
combination of pre-defined keys. Its probably not the fastest classifier
when used with multiple keys, but frankly, I don't think speed is very
important in most situations where the current SFQ implementation is used.

It currently does not support perturbation, I didn't want to move this into
the classifier, so I need to think about a way to handle it within SFQ.

Cool, but isn't this going to show the same collision problems that the
pre jhash esfq saw?

Andy.