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Re: InfiniBand/RDMA merge plans for 2.6.24

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From: Roland Dreier <rdreier@...>
To: Shirley Ma <xma@...>
Cc: <general@...>, <linux-kernel@...>, <netdev@...>, <netdev-owner@...>
Subject: Re: InfiniBand/RDMA merge plans for 2.6.24
Date: Friday, September 14, 2007 - 12:09 pm

> 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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Messages in current thread:
Re: InfiniBand/RDMA merge plans for 2.6.24, Roland Dreier, (Fri Sep 14, 12:09 pm)
Re: InfiniBand/RDMA merge plans for 2.6.24, Shirley Ma, (Fri Sep 14, 2:36 pm)
Re: InfiniBand/RDMA merge plans for 2.6.24, Roland Dreier, (Mon Sep 17, 5:47 pm)
Re: InfiniBand/RDMA merge plans for 2.6.24, Shirley Ma, (Wed Oct 3, 2:43 pm)