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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id ABF45C433F5 for ; Thu, 30 Sep 2021 08:09:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 955DF617E5 for ; Thu, 30 Sep 2021 08:09:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348949AbhI3ILI (ORCPT ); Thu, 30 Sep 2021 04:11:08 -0400 Received: from szxga03-in.huawei.com ([45.249.212.189]:24201 "EHLO szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348850AbhI3ILH (ORCPT ); Thu, 30 Sep 2021 04:11:07 -0400 Received: from dggemv704-chm.china.huawei.com (unknown [172.30.72.57]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4HKm8Z4dSjz8tRc; Thu, 30 Sep 2021 16:08:30 +0800 (CST) Received: from dggpemm500005.china.huawei.com (7.185.36.74) by dggemv704-chm.china.huawei.com (10.3.19.47) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.8; Thu, 30 Sep 2021 16:09:23 +0800 Received: from localhost.localdomain (10.69.192.56) by dggpemm500005.china.huawei.com (7.185.36.74) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.8; Thu, 30 Sep 2021 16:09:23 +0800 From: Yunsheng Lin To: , CC: , , , , , , , , , , , , , , , , Subject: [PATCH net-next v4 0/3] some optimization for page pool Date: Thu, 30 Sep 2021 16:07:44 +0800 Message-ID: <20210930080747.28297-1-linyunsheng@huawei.com> X-Mailer: git-send-email 2.33.0 MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.69.192.56] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpemm500005.china.huawei.com (7.185.36.74) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Patch 1: disable dma mapping support for 32-bit arch with 64-bit DMA. Patch 2 & 3: pp page frag tracking support The small packet drop test show no notiable performance degradation when page pool is disabled. V4: 1. Change error code to EOPNOTSUPP in patch 1. 2. Drop patch 2. 3. Use pp_frag_count to indicate if a pp page can be tracked, to avoid breaking the mlx5 driver. V3: 1. add patch 1/4/6/7. 2. use pp_magic to identify pp page uniquely too. 3. avoid unnecessary compound_head() calling. V2: add patch 2, adjust the commit log accroding to the discussion in V1, and fix a compiler error reported by kernel test robot. Yunsheng Lin (3): page_pool: disable dma mapping support for 32-bit arch with 64-bit DMA page_pool: change BIAS_MAX to support incrementing skbuff: keep track of pp page when pp_frag_count is used include/linux/mm_types.h | 13 +------------ include/linux/skbuff.h | 30 ++++++++++++++++++++---------- include/net/page_pool.h | 36 ++++++++++++++++++++++++------------ net/core/page_pool.c | 29 +++++++++-------------------- net/core/skbuff.c | 10 ++++++++-- 5 files changed, 62 insertions(+), 56 deletions(-) -- 2.33.0