[ovs-dev] [PATCH v3 04/16] dpif: Allow hash actions in dpif_execute_helper_cb()

Ben Pfaff blp at nicira.com
Thu May 1 15:44:29 UTC 2014


On Tue, Apr 22, 2014 at 05:54:52PM +0900, Simon Horman wrote:
> Rather then prohibiting hash actions dpif_execute_helper_cb()
> execute them by passing them on to aux->dpif->dpif_class->execute()
> and save the updated packet metadata afterwards. It is assumed
> that if a hash is calculated it will be sored in the dp_hash field
> of the metadata.

Not sure where this is going.  Userspace can't necessarily reproduce the
hash values computed by the datapath; the particular hash function is
unspecified.



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