Date: Tue, 3 Aug 2010 16:47:19 +0100 (BST) From: Robert Watson <rwatson@FreeBSD.org> To: Vincent Hoffman <vince@unsane.co.uk> Cc: freebsd-chat@freebsd.org Subject: Re: Packet steering/SMP Message-ID: <alpine.BSF.2.00.1008031643160.58546@fledge.watson.org> In-Reply-To: <4C5829FD.2050600@unsane.co.uk> References: <201008021824.MAA22246@lariat.net> <alpine.BSF.2.00.1008031517230.58546@fledge.watson.org> <4C5829FD.2050600@unsane.co.uk>
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On Tue, 3 Aug 2010, Vincent Hoffman wrote: > Fasinating stuff. I read http://www.ntop.org/blog/?p=86 to mean that the > newer intel NICs had similar capabilities to the Chelsio T3, is it just a > lack of driver and control support in FreeBSD or did I misunderstand? The Intel cards I've looked at often have quite small tables -- appropriate for directing packets for virtualization purposes (i.e., a few MACs to specific CPUs), and fine for distributing using RSS, but not able to direct tens of thousands of connections individually by 4-tuple to specific queues. It wouldn't surprise me if newer generations of Intel cards support similar features. If you're interested in high-performance packet capture to userspace, this GSoC project might be interesting though: http://wiki.freebsd.org/AlexandreFiveg/SOC2010AlexandreFive Robert
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