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=-2.5 required=3.0 tests=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 63FF2C433DF for ; Mon, 29 Jun 2020 21:13:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 47A4B20724 for ; Mon, 29 Jun 2020 21:13:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390620AbgF2VN0 (ORCPT ); Mon, 29 Jun 2020 17:13:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40896 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730123AbgF2S5n (ORCPT ); Mon, 29 Jun 2020 14:57:43 -0400 Received: from www62.your-server.de (www62.your-server.de [IPv6:2a01:4f8:d0a:276a::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9D088C030787; Mon, 29 Jun 2020 08:18:51 -0700 (PDT) Received: from sslproxy06.your-server.de ([78.46.172.3]) by www62.your-server.de with esmtpsa (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89_1) (envelope-from ) id 1jpvYN-0003Oq-V0; Mon, 29 Jun 2020 17:18:39 +0200 Received: from [178.196.57.75] (helo=pc-9.home) by sslproxy06.your-server.de with esmtpsa (TLSv1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1jpvYN-000POt-Hi; Mon, 29 Jun 2020 17:18:39 +0200 Subject: Re: [PATCH net] xsk: remove cheap_dma optimization To: =?UTF-8?B?QmrDtnJuIFTDtnBlbA==?= , Christoph Hellwig Cc: =?UTF-8?B?QmrDtnJuIFTDtnBlbA==?= , netdev@vger.kernel.org, davem@davemloft.net, konrad.wilk@oracle.com, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, maximmi@mellanox.com, magnus.karlsson@intel.com, jonathan.lemon@gmail.com References: <20200626134358.90122-1-bjorn.topel@gmail.com> <20200627070406.GB11854@lst.de> <88d27e1b-dbda-301c-64ba-2391092e3236@intel.com> <81aec200-c1a0-6d57-e3b6-26dad30790b8@intel.com> From: Daniel Borkmann Message-ID: <903c646c-dc74-a15c-eb33-e1b67bc7da0d@iogearbox.net> Date: Mon, 29 Jun 2020 17:18:38 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 MIME-Version: 1.0 In-Reply-To: <81aec200-c1a0-6d57-e3b6-26dad30790b8@intel.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit X-Authenticated-Sender: daniel@iogearbox.net X-Virus-Scanned: Clear (ClamAV 0.102.3/25858/Mon Jun 29 15:30:49 2020) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 6/29/20 5:10 PM, Björn Töpel wrote: > On 2020-06-29 15:52, Daniel Borkmann wrote: >> >> Ok, fair enough, please work with DMA folks to get this properly integrated and >> restored then. Applied, thanks! > > Daniel, you were too quick! Please revert this one; Christoph just submitted a 4-patch-series that addresses both the DMA API, and the perf regression! Nice, tossed from bpf tree then! (Looks like it didn't land on the bpf list yet, but seems other mails are currently stuck as well on vger. I presume it will be routed to Linus via Christoph?) Thanks, Daniel