Messages in this thread |  | | | Date | Sat, 20 Sep 2008 23:57:27 -0700 (PDT) | | Subject | Re: [PATCH 0/2]: Remote softirq invocation infrastructure. | | From | David Miller <> | |
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Sun, 21 Sep 2008 15:05:45 +0900
> Unfortunately doing this with IPsec is going to be non-trivial
> since we still want to maintain packet ordering inside IPsec
> and you don't get the inner flow information until you decrypt
> the packet.
Steffen has mechanisms by which to deal with this in his patches.
> So if we want to process IPsec packets in parallel it's best to
> implement that from within the crypto API where we can queue the
> result in order to ensure proper ordering.
That's another option, of course. And crypto could use remote
softirqs even for that :-)
> Of course, we need to balance any effort spent on this with the
> likelihood that hardware improvements will soon make this obsolete
> (for IPsec anyway).
True, but old hardware will always exist.
A lot of very reasonable machines out there will benefit from software
RX flow seperation.
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