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Message-ID: <46786A72.9080409@trash.net> Date: Wed, 20 Jun 2007 01:44:50 +0200 From: Patrick McHardy <kaber@...sh.net> To: David Miller <davem@...emloft.net> CC: shemminger@...ux-foundation.org, netdev@...r.kernel.org Subject: Re: [NET 00/02]: MACVLAN driver David Miller wrote: > From: Patrick McHardy <kaber@...sh.net> > Date: Tue, 19 Jun 2007 23:14:21 +0200 > > >> Stephen Hemminger wrote: >> >>> Looks good. I have some changes to allow devices with multiple MAC addresses >>> (never finished). This device could use that. >>> >> How would the driver do that? I was thinking about using dev_add_mc, >> but wasn't sure if that would work with all drivers for non-multicast >> addresses. >> > > This is actually a real issue for virtualization, and many > if not all current generation ethernet chips support > programming several unicast ethernet addresses in the MAC. > > Networking switches in domain0 on virtualization hosts use > this feature to support seperate MACs per guest node, > and if the chip doesn't support this the chip is put into > promiscuous mode. > > We don't have any clean interfaces by which to do this MAC > programming, and we do need something for it soon. > Stephen's suggestion sounds reasonable and easily implementable, I'll see if I can come up with a patch. - 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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