netdev - Re: vlan/macvlan 02/02: propagate transmission state to upper layers

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Message-ID: <20091110084814.02593603@nehalam>
Date:	Tue, 10 Nov 2009 08:48:14 -0800
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Patrick McHardy <kaber@...sh.net>
Cc:	"David S. Miller" <davem@...emloft.net>,
	Linux Netdev List <netdev@...r.kernel.org>
Subject: Re: vlan/macvlan 02/02: propagate transmission state to upper
 layers

On Tue, 10 Nov 2009 17:14:24 +0100
Patrick McHardy <kaber@...sh.net> wrote:

>   vlan/macvlan: propagate transmission state to upper layers
>     
>     Both vlan and macvlan devices usually don't use a qdisc and immediately
>     queue packets to the underlying device. Propagate transmission state of
>     the underlying device to the upper layers so they can react on congestion
>     and/or inform the sending process.
>     
>     Signed-off-by: Patrick McHardy <kaber@...sh.net>


Bridging and bonding have same issue, but the solution is more difficult.
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