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Date: Mon, 23 Jul 2012 10:03:43 -0400 From: Don Dutile <ddutile@...hat.com> To: Chris Friesen <chris.friesen@...band.com> CC: Ben Hutchings <bhutchings@...arflare.com>, David Miller <davem@...emloft.net>, yuvalmin@...adcom.com, gregory.v.rose@...el.com, netdev@...r.kernel.org, linux-pci@...r.kernel.org Subject: Re: New commands to configure IOV features On 07/20/2012 07:42 PM, Chris Friesen wrote: > On 07/20/2012 02:01 PM, Ben Hutchings wrote: >> On Fri, 2012-07-20 at 13:29 -0600, Chris Friesen wrote: > >>> Once the device exists, then domain-specific APIs would be used to >>> configure it the same way that they would configure a physical device. >> >> To an extent, but not entirely. >> >> Currently, the assigned MAC address and (optional) VLAN tag for each >> networking VF are configured via the PF net device (though this is done >> though the rtnetlink API rather than ethtool). > > I actually have a use-case where the guest needs to be able to modify the MAC addresses of network devices that are actually VFs. > > The guest is bonding the network devices together, so the bonding driver in the guest expects to be able to set all the slaves to the same MAC address. > > As I read the ixgbe driver, this should be possible as long as the host hasn't explicitly set the MAC address of the VF. Is that correct? > > Chris Interesting tug of war: hypervisors will want to set the macaddrs for security reasons, some guests may want to set macaddr for (valid?) config reasons. -- 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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