netdev - Re: IPoIB: Fix multicast packet drops before join is complete

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Date:	Mon, 8 Jun 2009 11:20:31 -0400 (EDT)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	David Miller <davem@...emloft.net>
cc:	rdreier@...co.com, netdev@...r.kernel.org, yosefe@...taire.COM
Subject: Re: IPoIB: Fix multicast packet drops before join is complete

On Fri, 5 Jun 2009, David Miller wrote:

> It's fundamentally wrong.  You need some limit there.

Maybe we need a different approach but (since we are at the point of
talking about categorical fundamentally wrong statements) its
fundamentally wrong if the IPoIB layer works differently from a regular
Ethernet NIC. They should work in the same way.

Could the packet drop mechanism for multicast be removed from the device
drivers and made standard in the core net layer? So they all have the same
predictable behavior for the applications using multicast?

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