From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hal Rosenstock Subject: Re: cq error timeout issue Date: Tue, 01 Nov 2011 10:04:55 -0400 Message-ID: <4EAFFC87.70208@dev.mellanox.co.il> References: <1828884A29C6694DAF28B7E6B8A8237316E8B236@ORSMSX101.amr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Vlad Weinbaum Cc: Or Gerlitz , "Hefty, Sean" , "linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" List-Id: linux-rdma@vger.kernel.org Just to clarify: On 11/1/2011 9:25 AM, Vlad Weinbaum wrote: > packet_life_time is 12 in sm.conf. OpenSM packet_life_time setting has nothing to do with this (but is used for SwitchInfo:LifeTimeValue setting): # The code of maximal time a packet can live in a switch # The actual time is 4.096usec * 2^ # The value 0x14 disables this mechanism The rate in SA PathRecord comes from subnet timeout in the absence of QoS: /* * Set packet lifetime. * According to spec definition IBA 1.2 Table 205 * PacketLifeTime description, for loopback paths, * packetLifeTime shall be zero. */ if (p_src_port == p_dest_port) pkt_life = 0; else if (p_qos_level && p_qos_level->pkt_life_set) pkt_life = p_qos_level->pkt_life; else pkt_life = sa->p_subn->opt.subnet_timeout; -- 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