Ben Pfaff <b...@nicira.com>:
>> Is do_xlate_actions ("translate actions"?) the wrong place for this kind of
>> stuff? How can I get a pointer to the raw packet data?
>
> Usually, ofproto-dpif-xlate should not actually implement the OpenFlow
> actions. Rather, it should output a set of datapath (kernel) actions
> that implement the OpenFlow actions. Otherwise, every packet in the
> flow has to go from the kernel to userspace, which is slow.
Yes, I figured this was not the place. So should I add a new action to
ovs_action_attr instead, then add it as a datapath action during
translation?
> If you do want to actually implement your actions during translation,
> then you can do it, but you have to mark the flow as "slow". There are
> a few uses of this mechanism already, so look around for examples.
I don't *have* to, I just dived in to start somewhere. The only problem is
that debugging kernel modules is kinda tricky, but I could install ovs in
userspace instead, I guess.
--
Christian Stigen Larsen
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