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Date: Tue, 15 Jul 2014 15:33:19 +0400
From: Slawa Olhovchenkov <slw@zxy.spb.ru>
To: freebsd-arch@freebsd.org
Subject: Re: UDP/TCP versus IP frames - subtle out of order packets with
 hardware hashing
Message-ID: <20140715113319.GA96254@zxy.spb.ru>
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On Tue, Jul 15, 2014 at 03:22:34PM +0430, Hooman Fazaeli wrote:

> On 7/15/2014 2:01 PM, Slawa Olhovchenkov wrote:
> > On Tue, Jul 15, 2014 at 01:31:52PM +0430, Hooman Fazaeli wrote:
> >
> >> Doesn't the problem applies to TCP too?
> >> TCP may be fragmented too but is less likely because of MSS.
> > Don't forget GRE, IPIP, ESP and AH!
> >
> These protocols don't use port numbers  and the RSS hash is computed based on the
> (srcip,dstip) tuple, so the problem does not apply to them.

And all flows go to one queue? Bad.