From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rick Jones Subject: Re: [ofa-general] Re: IPoIB forwarding Date: Fri, 27 Apr 2007 16:48:00 -0700 Message-ID: <46328BB0.9030501@hp.com> References: <46327A07.1000404@hp.com> <6.1.2.0.2.20070427153952.13fc7d08@mail.llnl.gov> <4632894D.40705@hp.com> <20070427.163934.106263903.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: lawver1@llnl.gov, netdev@vger.kernel.org, mst@dev.mellanox.co.il, general@lists.openfabrics.org To: David Miller Return-path: In-Reply-To: <20070427.163934.106263903.davem@davemloft.net> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: general-bounces@lists.openfabrics.org Errors-To: general-bounces@lists.openfabrics.org List-Id: netdev.vger.kernel.org David Miller wrote: > From: Rick Jones > Date: Fri, 27 Apr 2007 16:37:49 -0700 > > >>Large Receive Offload (LRO) is enabled by default. This will >>interfere with forwarding TCP traffic. If you plan to forward TCP >>traffic (using the host with the Myri10GE NIC as a router or bridge), >>you must disable LRO. To disable LRO, load the myri10ge driver >>with myri10ge_lro set to 0: > > > LRO should be disabled by default if the driver does this. This is a > major and unacceptable bug. > > Thanks for pointing this out Rick. No problem - just to play whatif/devil's advocate for a bit though... is there any way to tie that in with the setting of net.ipv4.ip_forward (and/or its IPv6 counterpart)? rick jones