Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935135AbbEOIcQ (ORCPT ); Fri, 15 May 2015 04:32:16 -0400 Received: from mail-wi0-f170.google.com ([209.85.212.170]:35264 "EHLO mail-wi0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934747AbbEOIbg (ORCPT ); Fri, 15 May 2015 04:31:36 -0400 Message-ID: <5555AEE5.9060503@profitbricks.com> Date: Fri, 15 May 2015 10:31:33 +0200 From: Michael Wang User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 MIME-Version: 1.0 To: "Hefty, Sean" , Doug Ledford CC: Roland Dreier , Hal Rosenstock , "linux-rdma@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-doc@vger.kernel.org" , Or Gerlitz , "Weiny, Ira" , Jason Gunthorpe Subject: Re: [PATCH RFC] Documentation/infiniband: Add docs for rdma-helpers References: <1431523472-10888-1-git-send-email-yun.wang@profitbricks.com> <1431529914.2377.22.camel@redhat.com> <1828884A29C6694DAF28B7E6B8A82373A8FDA105@ORSMSX109.amr.corp.intel.com> In-Reply-To: <1828884A29C6694DAF28B7E6B8A82373A8FDA105@ORSMSX109.amr.corp.intel.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1404 Lines: 44 On 05/13/2015 06:42 PM, Hefty, Sean wrote: >>> + rdma_cap_ib_cm >>> + --------------- >>> + Communication Manager (CM) will handle the connections between >> ^Connection Manager (CM) service, used to ease the process of > > In IB terms, this is communication manager. It also handles transport level address resolution for UD QPs. I could find both 'connection' and 'communication' in different docs, while 'connection' is more related to verbs, 'communication' is more close to specification. IMHO 'connection' make more sense, after all, all the transport between adaptors could named as communication, while connection management is exactly what CM did in kernel. Doug, what's your opinion? > >>> + rdma_cap_eth_ah >>> + --------------- >>> + Infiniband address handler format is special in ethernet fabric, >> use >>> + the helper to verify whether the port is using ethernet format or >> not. >> >> This helper is true when the address of the specific connection is of >> the Ethernet (RoCE) variety. > > This is used for connectionless communication. Could you please give more details on this? Regards, Michael Wang > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/