From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7642E63E for ; Tue, 11 Jul 2023 05:04:52 +0000 (UTC) Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A5CD7FB; Mon, 10 Jul 2023 22:04:50 -0700 (PDT) Received: by verein.lst.de (Postfix, from userid 2407) id 05D8C6732D; Tue, 11 Jul 2023 07:04:46 +0200 (CEST) Date: Tue, 11 Jul 2023 07:04:45 +0200 From: Christoph Hellwig To: Jakub Kicinski Cc: Christoph Hellwig , Jason Gunthorpe , Mina Almasry , John Hubbard , Dan Williams , David Ahern , Jesper Dangaard Brouer , brouer@redhat.com, Alexander Duyck , Yunsheng Lin , davem@davemloft.net, pabeni@redhat.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Lorenzo Bianconi , Yisen Zhuang , Salil Mehta , Eric Dumazet , Sunil Goutham , Geetha sowjanya , Subbaraya Sundeep , hariprasad , Saeed Mahameed , Leon Romanovsky , Felix Fietkau , Ryder Lee , Shayne Chen , Sean Wang , Kalle Valo , Matthias Brugger , AngeloGioacchino Del Regno , Jesper Dangaard Brouer , Ilias Apalodimas , linux-rdma@vger.kernel.org, linux-wireless@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Jonathan Lemon Subject: Re: Memory providers multiplexing (Was: [PATCH net-next v4 4/5] page_pool: remove PP_FLAG_PAGE_FRAG flag) Message-ID: <20230711050445.GA19323@lst.de> References: <5e0ac5bb-2cfa-3b58-9503-1e161f3c9bd5@kernel.org> <20230711042708.GA18658@lst.de> <20230710215906.49514550@kernel.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230710215906.49514550@kernel.org> User-Agent: Mutt/1.5.17 (2007-11-01) X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net On Mon, Jul 10, 2023 at 09:59:06PM -0700, Jakub Kicinski wrote: > On Tue, 11 Jul 2023 06:27:08 +0200 Christoph Hellwig wrote: > > Not going to comment on the rest of this as it seems bat shit crazy > > hacks for out of tree junk. Why is anyone even wasting time on this? > > Noob question - how does RDMA integrate with the out of tree junk? > AFAIU it's possible to run the "in-tree" RDMA stack and get "GPU > direct". I don't care and it has absolutel no business being discussed here. FYI at leat iWarp is a totally open standard.