From: Roland Dreier <rdreier@cisco.com>
To: Shirley Ma <xma@us.ibm.com>
Cc: general@lists.openfabrics.org, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, netdev-owner@vger.kernel.org
Subject: Re: InfiniBand/RDMA merge plans for 2.6.24
Date: Fri, 14 Sep 2007 09:09:13 -0700 [thread overview]
Message-ID: <adazlzpjkk6.fsf@cisco.com> (raw)
In-Reply-To: <OFAE678C61.64C333F1-ON87257355.007A0B34-88257355.004E6EAD@us.ibm.com> (Shirley Ma's message of "Thu, 13 Sep 2007 15:16:40 -0700")
> 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.
next parent reply other threads:[~2007-09-14 16:09 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <OFAE678C61.64C333F1-ON87257355.007A0B34-88257355.004E6EAD@us.ibm.com>
2007-09-14 16:09 ` Roland Dreier [this message]
2007-09-14 18:36 ` InfiniBand/RDMA merge plans for 2.6.24 Shirley Ma
2007-09-17 21:47 ` Roland Dreier
2007-10-03 18:43 ` Shirley Ma
2007-09-13 17:57 Roland Dreier
2007-09-13 18:22 ` Shirley Ma
2007-09-13 21:00 ` Roland Dreier
2007-09-18 16:34 ` Michael S. Tsirkin
2007-09-18 17:18 ` Roland Dreier
2007-09-18 17:22 ` Michael S. Tsirkin
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