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[23.128.96.18]) by mx.google.com with ESMTP id u185si2637169pgd.93.2021.10.09.02.39.56; Sat, 09 Oct 2021 02:40:08 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=huawei.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244471AbhJIJlI (ORCPT + 99 others); Sat, 9 Oct 2021 05:41:08 -0400 Received: from szxga03-in.huawei.com ([45.249.212.189]:24229 "EHLO szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230022AbhJIJlE (ORCPT ); Sat, 9 Oct 2021 05:41:04 -0400 Received: from dggemv711-chm.china.huawei.com (unknown [172.30.72.57]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4HRKjl4LYxzQj5H; Sat, 9 Oct 2021 17:38:03 +0800 (CST) Received: from dggpemm500005.china.huawei.com (7.185.36.74) by dggemv711-chm.china.huawei.com (10.1.198.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.8; Sat, 9 Oct 2021 17:39:06 +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; Sat, 9 Oct 2021 17:39:05 +0800 From: Yunsheng Lin To: , CC: , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH net-next -v5 0/4] some optimization for page pool Date: Sat, 9 Oct 2021 17:37:20 +0800 Message-ID: <20211009093724.10539-1-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: linux-kernel@vger.kernel.org Patch 1: disable dma mapping support for 32-bit arch with 64-bit DMA. Patch 2 - 4: pp page frag tracking support The small packet drop test show no notiable performance degradation when page pool is disabled. V5: Keep the put_page()/get_page() semantics. 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 (4): page_pool: disable dma mapping support for 32-bit arch with 64-bit DMA page_pool: change BIAS_MAX to support incrementing mm: introduce __get_page() and __put_page() skbuff: keep track of pp page when pp_frag_count is used include/linux/mm.h | 21 ++++++++++++++------- include/linux/mm_types.h | 13 +------------ include/linux/skbuff.h | 30 ++++++++++++++++++++---------- include/net/page_pool.h | 36 ++++++++++++++++++++++++------------ mm/swap.c | 6 +++--- net/core/page_pool.c | 29 +++++++++-------------------- net/core/skbuff.c | 10 ++++++++-- 7 files changed, 79 insertions(+), 66 deletions(-) -- 2.33.0