From: Patrick McHardy <kaber@trash.net>
To: David Miller <davem@davemloft.net>
Cc: shemminger@linux-foundation.org, netdev@vger.kernel.org
Subject: Re: [NET 00/02]: MACVLAN driver
Date: Wed, 20 Jun 2007 01:44:50 +0200 [thread overview]
Message-ID: <46786A72.9080409@trash.net> (raw)
In-Reply-To: <20070619.154840.55744015.davem@davemloft.net>
David Miller wrote:
> From: Patrick McHardy <kaber@trash.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.
next prev parent reply other threads:[~2007-06-19 23:45 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-19 13:08 [NET 00/02]: MACVLAN driver Patrick McHardy
2007-06-19 13:08 ` [ETHERNET 01/02]: Validate new address in eth_mac_addr Patrick McHardy
2007-06-19 13:08 ` [NET 02/02]: Add MACVLAN driver Patrick McHardy
2007-06-19 16:00 ` [NET 00/02]: " Stephen Hemminger
2007-06-19 19:53 ` Chris Leech
2007-06-19 21:14 ` Patrick McHardy
2007-06-19 22:29 ` Stephen Hemminger
2007-06-19 22:48 ` David Miller
2007-06-19 23:44 ` Patrick McHardy [this message]
2007-06-20 6:34 ` Jeff Garzik
2007-06-20 19:35 ` Prafulla Deuskar
2007-06-21 14:57 ` Patrick McHardy
-- strict thread matches above, loose matches on Subject: below --
2007-06-24 4:52 Mark Smith
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