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: Thu, 13 Sep 2007 14:00:43 -0700 [thread overview]
Message-ID: <aday7fal1qc.fsf@cisco.com> (raw)
In-Reply-To: <OF79F6C618.02039854-ON87257355.00646A35-88257355.0064AB34@us.ibm.com> (Shirley Ma's message of "Thu, 13 Sep 2007 11:22:16 -0700")
> Since ehca can support 4K MTU, we would like to see a patch in
> IPoIB to allow link MTU to be up to 4K instead of current 2K for 2.6.24
> kernel. The idea is IPoIB link MTU will pick up a return value from SM's
> default broadcast MTU. This patch should be a small patch, I hope you are
> OK with this.
It's actually not small, since it turns the skb allocation into a
4100-byte buffer, which ends up being more than 1 page usually, which
means it fails if memory is fragmented.
Anyway given the backlog anything substantial that hasn't been posted
already is almost surely going to have to wait until 2.6.25.
next prev parent reply other threads:[~2007-09-13 21:00 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-13 17:57 InfiniBand/RDMA merge plans for 2.6.24 Roland Dreier
2007-09-13 18:04 ` [ofa-general] " Steve Wise
2007-09-13 18:56 ` Jeff Garzik
2007-09-13 18:59 ` Steve Wise
2007-09-13 19:55 ` Jeff Garzik
2007-09-14 12:55 ` Evgeniy Polyakov
2007-09-13 21:12 ` Roland Dreier
2007-09-13 21:11 ` Roland Dreier
2007-09-13 22:59 ` Michael Chan
2007-09-14 16:18 ` Roland Dreier
2007-09-14 21:09 ` Michael Chan
2007-09-15 14:03 ` Steve Wise
2007-09-13 18:20 ` Sean Hefty
2007-09-13 21:02 ` Roland Dreier
2007-09-14 17:45 ` Sean Hefty
2007-10-02 18:26 ` Roland Dreier
2007-10-02 18:50 ` Sean Hefty
2007-10-05 23:10 ` Roland Dreier
2007-09-17 13:00 ` Hal Rosenstock
2007-09-18 9:48 ` Tziporet Koren
2007-09-13 18:22 ` Shirley Ma
2007-09-13 21:00 ` Roland Dreier [this message]
2007-09-13 22:16 ` [ofa-general] " Shirley Ma
2007-09-14 16:09 ` Roland Dreier
2007-09-14 18:36 ` Shirley Ma
2007-09-17 21:47 ` [ofa-general] " Roland Dreier
2007-09-17 22:24 ` Shirley Ma
2007-10-03 18:43 ` Shirley Ma
2007-09-16 8:50 ` [ofa-general] " Or Gerlitz
2007-09-17 22:11 ` Roland Dreier
2007-09-18 7:09 ` Jack Morgenstein
2007-09-19 6:19 ` [ofa-general] " Michael S. Tsirkin
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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