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Date: Fri, 3 Aug 2012 18:49:23 +0100 From: Ben Hutchings <bhutchings@...arflare.com> To: John Fastabend <john.r.fastabend@...el.com> CC: Jay Vosburgh <fubar@...ibm.com>, Chris Friesen <chris.friesen@...band.com>, "e1000-devel@...ts.sourceforge.net" <e1000-devel@...ts.sourceforge.net>, netdev <netdev@...r.kernel.org> Subject: Re: [E1000-devel] discussion questions: SR-IOV, virtualization, and bonding On Thu, 2012-08-02 at 21:50 -0700, John Fastabend wrote: > On 8/2/2012 4:01 PM, Jay Vosburgh wrote: [...] > > Still, though, isn't "influence the guest's choice" pretty much > > satisified by having the VF interface go carrier down in the guest when > > the host wants it to? Or are you thinking about more fine grained than > > that? > > > > Perhaps one argument against this is if the hardware supports loopback > modes or the edge relay in the hardware is acting like a VEB it may > still be possible to support VF to VF traffic even if the external link > is down. Not sure how useful this is though or if any existing hardware > even supports it. [...] It seems to me that VF to VF traffic ought to still work. If it doesn't then that's an unfortunate regression when moving from software bridging and virtio to hardware-supported network virtualisation. (But hybrid network virtualisation may help to solve that.) Ben. -- Ben Hutchings, Staff Engineer, Solarflare Not speaking for my employer; that's the marketing department's job. They asked us to note that Solarflare product names are trademarked. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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