From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B2BEBC6369E for ; Thu, 19 Nov 2020 02:14:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 40640246CE for ; Thu, 19 Nov 2020 02:14:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="kgtA4WOG" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727377AbgKSCO1 (ORCPT ); Wed, 18 Nov 2020 21:14:27 -0500 Received: from mail.kernel.org ([198.145.29.99]:56462 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726243AbgKSCO0 (ORCPT ); Wed, 18 Nov 2020 21:14:26 -0500 Received: from kicinski-fedora-PC1C0HJN.hsd1.ca.comcast.net (unknown [163.114.132.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 96E1A246B5; Thu, 19 Nov 2020 02:14:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1605752065; bh=s65eomXoth173lx3IsI0oIEDLCbBX4gTRbWURxjy9cI=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=kgtA4WOGfnOoDmWdDcamKNe4NQAx584obD4P71XlmG71sw2S3WwGqQspqk/ZK7hPa AVSQhZ/qetClkKQigHeDMhcMlp+p8d/AGAyODAVbTX3kN2fo8wEIt7sUs8EiRVlcTN xh6UXNdrRMsOeLGpslZOoqkQluYmR59elIoYThg0= Date: Wed, 18 Nov 2020 18:14:23 -0800 From: Jakub Kicinski To: Jason Gunthorpe Cc: Parav Pandit , Saeed Mahameed , "netdev@vger.kernel.org" , "linux-rdma@vger.kernel.org" , "gregkh@linuxfoundation.org" , Jiri Pirko , "dledford@redhat.com" , Leon Romanovsky , "davem@davemloft.net" Subject: Re: [PATCH net-next 00/13] Add mlx5 subfunction support Message-ID: <20201118181423.28f8090e@kicinski-fedora-PC1C0HJN.hsd1.ca.comcast.net> In-Reply-To: <20201117184954.GV917484@nvidia.com> References: <20201112192424.2742-1-parav@nvidia.com> <20201116145226.27b30b1f@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com> <20201116175804.15db0b67@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com> <20201117091120.0c933a4c@kicinski-fedora-PC1C0HJN.hsd1.ca.comcast.net> <20201117184954.GV917484@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Tue, 17 Nov 2020 14:49:54 -0400 Jason Gunthorpe wrote: > On Tue, Nov 17, 2020 at 09:11:20AM -0800, Jakub Kicinski wrote: > > > > Just to refresh all our memory, we discussed and settled on the flow > > > in [2]; RFC [1] followed this discussion. > > > > > > vdpa tool of [3] can add one or more vdpa device(s) on top of already > > > spawned PF, VF, SF device. > > > > Nack for the networking part of that. It'd basically be VMDq. > > What are you NAK'ing? Spawning multiple netdevs from one device by slicing up its queues. > It is consistent with the multi-subsystem device sharing model we've > had for ages now. > > The physical ethernet port is shared between multiple accelerator > subsystems. netdev gets its slice of traffic, so does RDMA, iSCSI, > VDPA, etc. Right, devices of other subsystems are fine, I don't care. Sorry for not being crystal clear but quite frankly IDK what else can be expected from me given the submissions have little to no context and documentation. This comes up every damn time with the SF patches, I'm tired of having to ask for a basic workflow.