netdev - Re: [PATCHv4] bonding: Do not try to send packets over dead link in TLB mode.

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Message-ID: <1405547523.10255.61.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Wed, 16 Jul 2014 23:52:03 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Mahesh Bandewar <maheshb@...gle.com>
Cc:	Jay Vosburgh <j.vosburgh@...il.com>,
	Veaceslav Falico <vfalico@...hat.com>,
	Andy Gospodarek <andy@...yhouse.net>,
	David Miller <davem@...emloft.net>,
	netdev <netdev@...r.kernel.org>,
	Eric Dumazet <edumazet@...gle.com>,
	Maciej Zenczykowski <maze@...gle.com>
Subject: Re: [PATCHv4] bonding: Do not try to send packets over dead link in
 TLB mode.

On Wed, 2014-07-16 at 11:10 -0700, Mahesh Bandewar wrote:
> In TLB mode if tlb_dynamic_lb is NOT set, slaves from the bond
> group are selected based on the hash distribution. This does not
> exclude dead links which are part of the bond. Also if there is a
> temporary link event which brings down the interface, packets
> hashed on that interface would be dropped too.
> 
> This patch fixes these issues and distributes flows across the
> UP links only. Also the array construction of links which are
> capable of sending packets happen in the control path leaving
> only link-selection during the data-path.
> 
> One possible side effect of this is - at a link event; all
> flows will be shuffled to get good distribution. But impact of
> this should be minimum with the assumption that a member or
> members of the bond group are not available is a very temporary
> situation.
> 
> Signed-off-by: Mahesh Bandewar <maheshb@...gle.com>
> ---

OK, this one seems fine, thanks ;)

Signed-off-by: Eric Dumazet <edumazet@...gle.com>

This is for net-next tree.



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