From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steve Wise Subject: Re: Problem running rping over Intel adapters Date: Thu, 04 Oct 2012 10:08:48 -0500 Message-ID: <506DA680.5080706@opengridcomputing.com> References: <506CB0E9.90201@redhat.com> <1828884A29C6694DAF28B7E6B8A8237346A98E58@FMSMSX151.amr.corp.intel.com> <506CB4D8.4010604@redhat.com> <1828884A29C6694DAF28B7E6B8A8237346A98E8E@FMSMSX151.amr.corp.intel.com> <506CEAC1.9070808@opengridcomputing.com> <506D2174.10601@mellanox.com> <506D9CD2.20606@opengridcomputing.com> <1828884A29C6694DAF28B7E6B8A8237346A99126@FMSMSX151.amr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1828884A29C6694DAF28B7E6B8A8237346A99126-Q3cL8pyY+6ukrb+BlOpmy7fspsVTdybXVpNB7YpNyf8@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: "Hefty, Sean" Cc: Or Gerlitz , Doug Ledford , "Marciniszyn, Mike" , "linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" List-Id: linux-rdma@vger.kernel.org On 10/4/2012 10:01 AM, Hefty, Sean wrote: >> retry_count, I assume, is for connection establishment? For the Chelsio >> devices, this is all up to the TCP stack and thus this counter is not >> used. If there is no TCP listener, then the connection establishment >> will fail immediately. If the node is not reachable, then normal TCP >> retransmit rules apply, but once TCP gives up, then the rdma connection >> establishment will fail. > On IB, this is a transport level retry of a lost request. Ah, ok. Regardless, TCP handles all that for IWARP and we currently don't provide the rdma application any way to manipulate the TCP behavior. Steve. -- 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