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Message-ID: <5012BEB1.9030306@genband.com> Date: Fri, 27 Jul 2012 10:15:45 -0600 From: Chris Friesen <chris.friesen@...band.com> To: Andy Gospodarek <gospo@...hat.com> CC: Jay Vosburgh <fubar@...ibm.com>, Jiri Pirko <jiri@...nulli.us>, netdev <netdev@...r.kernel.org>, andy@...yhouse.net Subject: Re: bonding and SR-IOV -- do we need arp_validation for loadbalancing too? On 07/27/2012 08:55 AM, Andy Gospodarek wrote: > On Tue, Jul 24, 2012 at 03:38:11PM -0600, Chris Friesen wrote: >> In our environment (ATCA shelf) the switches have been customized to >> handle some of this stuff so arpmon does work reliably with xor. > Good. > >> In the general case it sounds like the "PF bonding ignores packets >> from VFs" is a better bet then. > It really might be. There are some registers in the 82599 datasheets > that are not used by the ixgbe driver, but might help you in this area. > > If you take a look at PFVML2FLT and PFUTA and their current status on > your system you might be able to put something together that gives you > what you want. I think it's simpler than that. By my reading of the 82599 datasheet, the LB bit in the status field of the rx descriptor will indicate if the packet came from a VM. > It would likely mean you have to run a custom ixgbe-driver, but that > doesn't sound like much of an issue. While I'd like to avoid it if possible, we've already had to tweak the driver for other things. The complication is that we've got a few different types of hardware and they're not all running 82599. I'm trying to figure out if the other hardware can do something similar. Chris -- 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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