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=-2.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 CF0F5C7618B for ; Thu, 25 Jul 2019 09:45:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8D8DC2190F for ; Thu, 25 Jul 2019 09:45:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="UOPEEsvk" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390758AbfGYJpw (ORCPT ); Thu, 25 Jul 2019 05:45:52 -0400 Received: from hqemgate14.nvidia.com ([216.228.121.143]:15831 "EHLO hqemgate14.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725808AbfGYJpw (ORCPT ); Thu, 25 Jul 2019 05:45:52 -0400 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqemgate14.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Thu, 25 Jul 2019 02:45:52 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Thu, 25 Jul 2019 02:45:51 -0700 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Thu, 25 Jul 2019 02:45:51 -0700 Received: from [10.21.132.148] (10.124.1.5) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Thu, 25 Jul 2019 09:45:48 +0000 Subject: Re: [PATCH net-next 3/3] net: stmmac: Introducing support for Page Pool To: Jose Abreu , Ilias Apalodimas CC: David Miller , "robin.murphy@arm.com" , "lists@bofh.nu" , "Joao.Pinto@synopsys.com" , "alexandre.torgue@st.com" , "maxime.ripard@bootlin.com" , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-stm32@st-md-mailman.stormreply.com" , "wens@csie.org" , "mcoquelin.stm32@gmail.com" , "linux-tegra@vger.kernel.org" , "peppe.cavallaro@st.com" , "linux-arm-kernel@lists.infradead.org" References: <6c769226-bdd9-6fe0-b96b-5a0d800fed24@arm.com> <8756d681-e167-fe4a-c6f0-47ae2dcbb100@nvidia.com> <20190723.115112.1824255524103179323.davem@davemloft.net> <20190724085427.GA10736@apalos> <20190724095310.GA12991@apalos> <33de62bf-2f8a-bf00-9260-418b12bed24c@nvidia.com> From: Jon Hunter Message-ID: Date: Thu, 25 Jul 2019 10:45:46 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: X-Originating-IP: [10.124.1.5] X-ClientProxiedBy: HQMAIL101.nvidia.com (172.20.187.10) To HQMAIL107.nvidia.com (172.20.187.13) Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1564047952; bh=5isgglopm7SeJ86vy3+jPoE2tjL+r8qlKxtTv2QKBHM=; h=X-PGP-Universal:Subject:To:CC:References:From:Message-ID:Date: User-Agent:MIME-Version:In-Reply-To:X-Originating-IP: X-ClientProxiedBy:Content-Type:Content-Language: Content-Transfer-Encoding; b=UOPEEsvkrrYBFIWOd177XUvGoLoWRcDIklaeRlE6HdJ86bODEuxFdAKOnXSsl7TQj C1BlC2kjEQ0OhI0uEKzvHK9P8cFLhTi9bOecyjyqn+yeZ5oJTX4F0fA21jvxkmoMGW TNukEvfcPf42Mg3iQLiGz6vTTPRGJWuSlRF4vZIshHT3rYR/wZStZWNFVVkYAUtTdd e5axWio9Qs/BMnGYpAWXNM8SBrmW/SE92TcRbIn7zHU7j0fR3D8FXMdI5wfJW2vgh6 LWbcupZd1chBOxvamcdQX84cb/usJkiRoWPgbFY/h+z97ZHmL8OzwA12q1uekPsgVZ PMCZNteWQgGFg== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 25/07/2019 08:44, Jose Abreu wrote: ... > OK. Can you please test what Ilias mentioned ? > > Basically you can hard-code the order to 0 in > alloc_dma_rx_desc_resources(): > - pp_params.order = DIV_ROUND_UP(priv->dma_buf_sz, PAGE_SIZE); > + pp_params.order = 0; > > Unless you use a MTU > PAGE_SIZE. I made the change but unfortunately the issue persists. Jon -- nvpublic