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From: Ben Greear <greearb@candelatech.com>
To: Patrick McHardy <kaber@trash.net>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
	Mark Smith
	<nanog@85d5b20a518b8f6864949bd940457dc124746ddc.nosense.org>,
	David Miller <davem@davemloft.net>,
	netdev@vger.kernel.org, shemminger@linux-foundation.org
Subject: Re: MACVLANs really best solution? How about a bridge with multiple bridge virtual interfaces?
Date: Mon, 09 Mar 2009 11:58:39 -0700	[thread overview]
Message-ID: <49B566DF.3040603@candelatech.com> (raw)
In-Reply-To: <49B5478C.4020001@trash.net>

Patrick McHardy wrote:

>> Now that I think about it we could call ndo_start_xmit directly
>> from the macvlan code, and bypass whatever hook we use to
>> intercept packets going out the normal device it should not
>> be too difficult.
> 
> We don't intercept packets on TX, they have to be explicitly delivered
> to macvlan.

It might suck for performance, but mac-vlan could register an 'ALL' protocol
on the physical dev, similar to tcp-dump, to grab pkts on tx and pass the
ones it cares about back up to the vlans?

I'd want run-time control to disable any of these costly options for those that
don't need it, however.

Thanks,
Ben

-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com


  reply	other threads:[~2009-03-09 18:58 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-03-07 10:45 MACVLANs really best solution? How about a bridge with multiple bridge virtual interfaces? (was Re: [PATCH] macvlan: Support creating macvlans from macvlans) Mark Smith
2009-03-07 16:30 ` Ben Greear
2009-03-07 18:13   ` Eric W. Biederman
2009-03-07 22:32     ` Mark Smith
2009-03-08 16:54       ` Ben Greear
2009-03-09  1:14         ` Mark Smith
2009-03-09 13:31 ` Patrick McHardy
2009-03-09 14:56   ` Eric W. Biederman
2009-03-09 15:02     ` Patrick McHardy
2009-03-09 15:48       ` MACVLANs really best solution? How about a bridge with multiple bridge virtual interfaces? Eric W. Biederman
2009-03-09 15:53         ` Patrick McHardy
2009-03-09 16:34           ` Eric W. Biederman
2009-03-09 16:45             ` Patrick McHardy
2009-03-09 18:58               ` Ben Greear [this message]
2009-03-09 21:17                 ` Eric W. Biederman
2009-03-09 21:23                   ` Ben Greear
2009-03-09 18:33         ` Brian Haley
2009-03-09 18:54         ` Ben Greear

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