From patchwork Fri Nov 6 18:19:06 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 11887707 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=-7.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 36263C2D0A3 for ; Fri, 6 Nov 2020 18:19:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D124D21D81 for ; Fri, 6 Nov 2020 18:19:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604686767; bh=kUxqyP4MOyVQhNkc1WjIKVrWlS397P7MZjoOpC5WKZw=; h=From:To:Cc:Subject:Date:List-ID:From; b=0vtQxX/BkA6TgEH9n/b0w+kC5IAEhU0UPEJ1tS7AisTJGiuiCCnbA3xbvpIEb4ce5 zWC8K2ZlGx0luuxuBtFT6Zy+dCjgIZnNcSQKdYguBaLlT316VPlcbAhoTWQcN+4Bam +GMaXww2INPNB6YJ4Y3qh3ENuH2P4/05tKM/vTjs= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726880AbgKFST1 (ORCPT ); Fri, 6 Nov 2020 13:19:27 -0500 Received: from mail.kernel.org ([198.145.29.99]:41126 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726415AbgKFST1 (ORCPT ); Fri, 6 Nov 2020 13:19:27 -0500 Received: from localhost.localdomain (unknown [151.66.8.153]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4467220853; Fri, 6 Nov 2020 18:19:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604686766; bh=kUxqyP4MOyVQhNkc1WjIKVrWlS397P7MZjoOpC5WKZw=; h=From:To:Cc:Subject:Date:From; b=hfw1yDLws7wCw8dWUrz41C56K7ToZxCcIS19fq7O3DbF+CoVJpesuyqsl78f0J2RD TgcGeX0khKbGKOxnGx7xX6Fh4zaGEF2OKdIZnszCFksr6980UkNYTzUrSV1Jo26eMG TV1s3vgoNbTxRZ0iM/is3djg3EQOcqDz9CAqKfrA= From: Lorenzo Bianconi To: netdev@vger.kernel.org Cc: bpf@vger.kernel.org, lorenzo.bianconi@redhat.com, davem@davemloft.net, kuba@kernel.org, brouer@redhat.com, ilias.apalodimas@linaro.org Subject: [PATCH v4 net-next 0/5] xdp: introduce bulking for page_pool tx return path Date: Fri, 6 Nov 2020 19:19:06 +0100 Message-Id: X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org XDP bulk APIs introduce a defer/flush mechanism to return pages belonging to the same xdp_mem_allocator object (identified via the mem.id field) in bulk to optimize I-cache and D-cache since xdp_return_frame is usually run inside the driver NAPI tx completion loop. Convert mvneta, mvpp2 and mlx5 drivers to xdp_return_frame_bulk APIs. Changes since v3: - align DEV_MAP_BULK_SIZE to XDP_BULK_QUEUE_SIZE - refactor page_pool_put_page_bulk to avoid code duplication Changes since v2: - move mvneta changes in a dedicated patch Changes since v1: - improve comments - rework xdp_return_frame_bulk routine logic - move count and xa fields at the beginning of xdp_frame_bulk struct - invert logic in page_pool_put_page_bulk for loop Lorenzo Bianconi (5): net: xdp: introduce bulking for xdp tx return path net: page_pool: add bulk support for ptr_ring net: mvneta: add xdp tx return bulking support net: mvpp2: add xdp tx return bulking support net: mlx5: add xdp tx return bulking support drivers/net/ethernet/marvell/mvneta.c | 5 +- .../net/ethernet/marvell/mvpp2/mvpp2_main.c | 5 +- .../net/ethernet/mellanox/mlx5/core/en/xdp.c | 5 +- include/net/page_pool.h | 26 ++++++++ include/net/xdp.h | 11 +++- net/core/page_pool.c | 66 ++++++++++++++++--- net/core/xdp.c | 56 ++++++++++++++++ 7 files changed, 160 insertions(+), 14 deletions(-)