From patchwork Sun Nov 10 12:09:07 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 1192555 Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="oNPk0g0E"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 479t9M5D5Kz9s7T for ; Sun, 10 Nov 2019 23:09:43 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726749AbfKJMJc (ORCPT ); Sun, 10 Nov 2019 07:09:32 -0500 Received: from mail.kernel.org ([198.145.29.99]:51218 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726438AbfKJMJc (ORCPT ); Sun, 10 Nov 2019 07:09:32 -0500 Received: from localhost.localdomain (unknown [77.139.212.74]) (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 28C0720818; Sun, 10 Nov 2019 12:09:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573387771; bh=ZqkxJb+MiOhZ4V2mSqUJErYXEkJA4jPMiCwhVTyIGy8=; h=From:To:Cc:Subject:Date:From; b=oNPk0g0Egh0KNS39ErQmtCmgKnIZhvkf8gqC2B7eplcIk3riIPGxDjxjpDspdT84H ug9a3RS7aGZbulwx29Dd7HQ+U7niMonGODrgwJVCil+lYyp8H5InvjSh8RRNBIfn1Z ZIUVdlbiW2mKKY+e9UA9yCLqccV41aplFSh6KYtk= From: Lorenzo Bianconi To: netdev@vger.kernel.org Cc: lorenzo.bianconi@redhat.com, davem@davemloft.net, thomas.petazzoni@bootlin.com, brouer@redhat.com, ilias.apalodimas@linaro.org, matteo.croce@redhat.com Subject: [PATCH net-next 0/3] add DMA sync capability to page_pool API Date: Sun, 10 Nov 2019 14:09:07 +0200 Message-Id: X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Introduce the possibility to sync DMA memory in the page_pool API for non-coherent devices. This feature allows to sync proper DMA size and not always full buffer (dma_sync_single_for_device can be very costly). Relying on page_pool DMA sync mvneta driver improves XDP_DROP pps of about 180Kpps: - XDP_DROP DMA sync managed by mvneta driver: ~420Kpps - XDP_DROP DMA sync managed by page_pool API: ~595Kpps Lorenzo Bianconi (3): net: mvneta: rely on page_pool_recycle_direct in mvneta_run_xdp net: page_pool: add the possibility sync dma memory for non-coherent devices net: mvneta: get rid of huge dma sync in mvneta_rx_refill drivers/net/ethernet/marvell/mvneta.c | 23 ++++++++++------ include/net/page_pool.h | 11 +++++--- net/core/page_pool.c | 39 ++++++++++++++++++++++----- 3 files changed, 55 insertions(+), 18 deletions(-)