From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hal Rosenstock Subject: Re: tune ib stack Date: Tue, 09 Apr 2013 09:34:44 -0400 Message-ID: <516418F4.4040908@dev.mellanox.co.il> References: <51640E72.3010202@dev.mellanox.co.il> <516414BD.4020407@profitbricks.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <516414BD.4020407-EIkl63zCoXaH+58JC4qpiA@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Sebastian Riemer Cc: Vasiliy Tolstov , linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-rdma@vger.kernel.org On 4/9/2013 9:16 AM, Sebastian Riemer wrote: > On 09.04.2013 14:49, Hal Rosenstock wrote: >> On 4/9/2013 7:12 AM, Vasiliy Tolstov wrote: >>> Hello. I have some servers, with mellanox ConnectX-3 and have some questions: >>> Why max_mtu differs with active_mtu? >> >> What does peer port say for max MTU ? >> >>> How can i set active mtu? >> >> SM sets active MTU to min of peer ports max MTUs. > > So with "peer port max MTU" do you mean this file?: > > /sys/class/infiniband/mlx4_0/device/mlx4_port1_mtu I meant NeighborMTU from PortInfo as active MTU and MTUCap there is supported MTU. -- Hal -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html