Return-Path: Received: from mga09.intel.com ([134.134.136.24]:41167 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752291AbbGXASm convert rfc822-to-8bit (ORCPT ); Thu, 23 Jul 2015 20:18:42 -0400 From: "Hefty, Sean" To: Jason Gunthorpe , "Marciniszyn, Mike" CC: Steve Wise , "'Christoph Hellwig'" , "'Sagi Grimberg'" , "'Steve Wise'" , "'Tom Talpey'" , "'Doug Ledford'" , "sagig@mellanox.com" , "ogerlitz@mellanox.com" , "roid@mellanox.com" , "linux-rdma@vger.kernel.org" , "eli@mellanox.com" , "target-devel@vger.kernel.org" , "linux-nfs@vger.kernel.org" , "trond.myklebust@primarydata.com" , "bfields@fieldses.org" , "'Oren Duer'" Subject: RE: [PATCH V3 1/5] RDMA/core: Transport-independent access flags Date: Fri, 24 Jul 2015 00:18:41 +0000 Message-ID: <1828884A29C6694DAF28B7E6B8A82373A901DBA9@ORSMSX109.amr.corp.intel.com> References: <559FC710.1050307@talpey.com> <20150710161108.GA19042@obsidianresearch.com> <55A24571.60902@dev.mellanox.co.il> <00e201d0be6a$e49bc910$add35b30$@opengridcomputing.com> <20150714194512.GA25887@infradead.org> <00f901d0be6f$70c96b00$525c4100$@opengridcomputing.com> <1828884A29C6694DAF28B7E6B8A82373A901C9A5@ORSMSX109.amr.corp.intel.com> <009e01d0c57a$37d5b9e0$a7812da0$@opengridcomputing.com> <1828884A29C6694DAF28B7E6B8A82373A901DB80@ORSMSX109.amr.corp.intel.com> <20150723235310.GA20537@obsidianresearch.com> In-Reply-To: <20150723235310.GA20537@obsidianresearch.com> Content-Type: text/plain; charset="Windows-1252" MIME-Version: 1.0 Sender: linux-nfs-owner@vger.kernel.org List-ID: > The lkey is possibly useful if someone wants to do single op transfers > larger than the S/G limit of the SQE. I haven't noticed any ULPs doing > that.. That changes how the buffer is identified, which gets back to my question of are we identifying local buffers by address or through some sort of iova/tag/descriptor/mr/whatever. Do we have this right in the API?