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Date:	Fri, 14 Sep 2007 09:09:13 -0700
From:	Roland Dreier <>
To:	Shirley Ma <>
Subject: Re: InfiniBand/RDMA merge plans for 2.6.24

 > The patch is just needed to pick up broadcast MTU size instead of hard
 > coding 2K right now. SKB allocation shouldn't be different with Ethernet
 > Jambo Frame and IPoIB-CM which 64K MTU. I don't understand why it's
 > different. Could you please explain this?

It's exactly the same problem as ethernet jumbo frames.  A web search
for '"order 1" failure e1000' might be interesting.

IPoIB CM handles this properly by gathering together single pages in
skbs' fragment lists.

 - R.
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