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=-2.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 693A8C76186 for ; Wed, 17 Jul 2019 05:09:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3DC11208C0 for ; Wed, 17 Jul 2019 05:09:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="C33o6z7d" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726857AbfGQFJl (ORCPT ); Wed, 17 Jul 2019 01:09:41 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:50732 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726775AbfGQFJl (ORCPT ); Wed, 17 Jul 2019 01:09:41 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=1+t8nFs6WiSQrcpholSuGb1chNm88t1z1W05LV8gtBA=; b=C33o6z7dsRbZbgbsRGLrnXpRe ihiesxs8jhZDMAvBPevR5fiLoy2KMXyKlkYq5Fef/fgSOO/8RQyuioDa+yhSieltnXtoEAqg3iEzH Wj5MOyt/xmiBUur+Qr7jkfl02DB2+Zxmk4nS/FEe1G2T9XsoZ4ofcwxRbMEnKZNfmudRoATV0sZMR OcTKQjDjZO8C5A3VmjnMrCweLMN45DO9ZmCHf/jlu3ELDO8M+mcAUAzFiftfYn00nynsYTPKB8UGr JijDwVIxGoRxSdnX6rD0o/QOtdy/GWGXZrL89E0Q5iadXT+NjvEYmiF/y5qTKXsQUoh9pRfyuekPM tbo0I04Mw==; Received: from hch by bombadil.infradead.org with local (Exim 4.92 #3 (Red Hat Linux)) id 1hncC3-0004xJ-FC; Wed, 17 Jul 2019 05:09:31 +0000 Date: Tue, 16 Jul 2019 22:09:31 -0700 From: Christoph Hellwig To: Shamir Rabinovitch Cc: dledford@redhat.com, jgg@ziepe.ca, leon@kernel.org, monis@mellanox.com, parav@mellanox.com, danielj@mellanox.com, kamalheib1@gmail.com, markz@mellanox.com, swise@opengridcomputing.com, shamir.rabinovitch@oracle.com, johannes.berg@intel.com, willy@infradead.org, michaelgur@mellanox.com, markb@mellanox.com, yuval.shaia@oracle.com, dan.carpenter@oracle.com, bvanassche@acm.org, maxg@mellanox.com, israelr@mellanox.com, galpress@amazon.com, denisd@mellanox.com, yuvalav@mellanox.com, dennis.dalessandro@intel.com, will@kernel.org, ereza@mellanox.com, jgg@mellanox.com, linux-rdma@vger.kernel.org Subject: Re: [PATCH 00/25] Shared PD and MR Message-ID: <20190717050931.GA18936@infradead.org> References: <20190716181200.4239-1-srabinov7@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190716181200.4239-1-srabinov7@gmail.com> User-Agent: Mutt/1.11.4 (2019-03-13) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org On Tue, Jul 16, 2019 at 09:11:35PM +0300, Shamir Rabinovitch wrote: > Following patch-set introduce the shared object feature. > > A shared object feature allows one process to create HW objects (currently > PD and MR) so that a second process can import. That sounds like a major complication, so you'd better also explain the use case very well.