From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 4B321A0C41; Wed, 23 Jun 2021 05:07:08 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id AC25340040; Wed, 23 Jun 2021 05:07:07 +0200 (CEST) Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by mails.dpdk.org (Postfix) with ESMTP id EAC4E4003E for ; Wed, 23 Jun 2021 05:07:05 +0200 (CEST) IronPort-SDR: J6PDIY0ka6mTcrNNaE0tjcBPmKGiBUfHLv2ToJBQI8p0swmYneVdmgJWCLwuL4MYiKx8hzyhhB 7A1/wU65QruA== X-IronPort-AV: E=McAfee;i="6200,9189,10023"; a="268322033" X-IronPort-AV: E=Sophos;i="5.83,293,1616482800"; d="scan'208";a="268322033" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Jun 2021 20:07:02 -0700 IronPort-SDR: 7StXlve1vLc5HHNL8TOZfvkDAN8OeqECrhaFr7YkdngbGmmtxc0A7J4MWr+aMx8pJOSyHW9GN8 AhXU05Ge7Eow== X-IronPort-AV: E=Sophos;i="5.83,293,1616482800"; d="scan'208";a="487141319" Received: from unknown (HELO localhost.localdomain) ([10.240.183.109]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Jun 2021 20:07:00 -0700 From: Wenwu Ma To: dev@dpdk.org Cc: maxime.coquelin@redhat.com, chenbo.xia@intel.com, cheng1.jiang@intel.com, Wenwu Ma Date: Wed, 23 Jun 2021 15:00:10 +0000 Message-Id: <20210623150014.1015484-1-wenwux.ma@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210602083110.5530-1-yuanx.wang@intel.com> References: <20210602083110.5530-1-yuanx.wang@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [dpdk-dev] [PATCH v3 0/4] vhost: support async dequeue for split ring X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" This patch implements asynchronous dequeue data path for split ring. A new asynchronous dequeue function is introduced. With this function, the application can try to receive packets from the guest with offloading large copies to the DMA engine, thus saving precious CPU cycles. v3: - Fix compilation warning and error in arm platform. - Restore the removed function virtio_dev_pktmbuf_alloc, async dequeue allocate packets in separate. v2: - Refactor vhost datapath as preliminary patch for this series. - The change of using new API in examples/vhost is put into a dedicated patch. - Check queue_id value before using it. - Async dequeue performance enhancement. 160% performance improvement for v2 vs. v1. - Async dequeue API name change from rte_vhost_try_dequeue_burst to rte_vhost_async_try_dequeue_burst. - The completed package updates the used ring directly. Wenwu Ma (3): examples/vhost: refactor vhost enqueue and dequeue datapaths. examples/vhost: use a new API to query remaining ring space examples/vhost: support vhost async dequeue data path Yuan Wang (1): vhost: support async dequeue for split ring doc/guides/prog_guide/vhost_lib.rst | 10 + doc/guides/sample_app_ug/vhost.rst | 9 +- examples/vhost/ioat.c | 67 +++- examples/vhost/ioat.h | 25 ++ examples/vhost/main.c | 224 +++++++---- examples/vhost/main.h | 33 +- examples/vhost/virtio_net.c | 16 +- lib/vhost/rte_vhost_async.h | 44 ++- lib/vhost/version.map | 3 + lib/vhost/virtio_net.c | 579 ++++++++++++++++++++++++++++ 10 files changed, 902 insertions(+), 108 deletions(-) -- 2.25.1