From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Gunthorpe Subject: Re: [for-next 4/6] net/mlx5: FPGA, Add basic support for Innova Date: Tue, 6 Jun 2017 10:17:09 -0600 Message-ID: <20170606161709.GA8671@obsidianresearch.com> References: <20170529153131.GB7924@obsidianresearch.com> <20170529160252.GA27550@obsidianresearch.com> <20170601153704.GA1680@obsidianresearch.com> <20170605151724.GA20182@obsidianresearch.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Alexei Starovoitov , Saeed Mahameed , "David S. Miller" , Doug Ledford , "netdev@vger.kernel.org" , "linux-rdma@vger.kernel.org" , "jsorensen@fb.com" , Andy Shevchenko , "linux-fpga@vger.kernel.org" , Alan Tull , "yi1.li@linux.intel.com" , Boris Pismenny To: Ilan Tayari Return-path: Received: from quartz.orcorp.ca ([184.70.90.242]:51787 "EHLO quartz.orcorp.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751460AbdFFQR0 (ORCPT ); Tue, 6 Jun 2017 12:17:26 -0400 Content-Disposition: inline In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: On Tue, Jun 06, 2017 at 06:52:15AM +0000, Ilan Tayari wrote: > So neither the host stack nor the network are aware of them. > They exist momentarily only on the internal traces on the board and not > anywhere else. Is that really true? If you are creating rocee QPs' then the RDMA stack sees this stuff and now we have buried a RDMA ULP inside an ethernet driver which seems really wonky.. > I don't mind explaining further, but I think you will just see it in the > patchset when we submit. You described exactly what I thought.. I just disagree with you that an ethernet connected and controlled IP accelerator is 'part of the NIC', even if it happens to be colocated on the same circuit board. Jason