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 6A4CFA0C43; Fri, 8 Oct 2021 00:13:25 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id E3A66411FE; Fri, 8 Oct 2021 00:13:24 +0200 (CEST) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by mails.dpdk.org (Postfix) with ESMTP id 5A14A4116F for ; Fri, 8 Oct 2021 00:13:23 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1633644802; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=4DvfeZqlQZq3PIZYBwj5b2omGrvXxtamABasPeTZY8E=; b=GVuQlM6C1enuOI9aOcbsTpWcJb51RRczvNDqDArfmJxxVHUvZr72jVtQkeodTXiYk5mhCn sLSFT7k+o/CJKKqLkxJryv4fXVx+Ob1mjKD4Eu+EpQGOBzlibcmPKo29W1rNeKKExVQlL7 x2U80ePi5tOJFutmf6+nYVIi35/jEJ0= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-304-7cHW6xRfOzS8jCf5Fanesw-1; Thu, 07 Oct 2021 18:13:16 -0400 X-MC-Unique: 7cHW6xRfOzS8jCf5Fanesw-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 4F175155DB9; Thu, 7 Oct 2021 22:00:18 +0000 (UTC) Received: from max-t490s.redhat.com (unknown [10.39.208.18]) by smtp.corp.redhat.com (Postfix) with ESMTP id 7AC145C1A3; Thu, 7 Oct 2021 22:00:16 +0000 (UTC) From: Maxime Coquelin To: dev@dpdk.org, chenbo.xia@intel.com, jiayu.hu@intel.com, yuanx.wang@intel.com, wenwux.ma@intel.com, bruce.richardson@intel.com, john.mcnamara@intel.com Cc: Maxime Coquelin Date: Thu, 7 Oct 2021 23:59:59 +0200 Message-Id: <20211007220013.355530-1-maxime.coquelin@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=maxime.coquelin@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII" Subject: [dpdk-dev] [RFC 00/14] vhost: clean-up and simplify async implementation 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 series aims at cleaning and simplifying the async enqueue path. I think it makes the code easier to understand, and is necessary before integrating new changes. I may have more reworks to propose in next revisions, but I wanted to share my current status early so that you have time to review/test it. It is only compile-tested, as I don't have HW with IOAT support to test it. Maxime Coquelin (14): vhost: move async data in a dedicated structure vhost: hide inflight async structure vhost: simplify async IO vectors vhost: simplify async IO vectors iterators vhost: remove async batch threshold vhost: introduce specific iovec structure vhost: remove useless fields in async iterator struct vhost: improve IO vector logic vhost: remove notion of async descriptor vhost: simplify async enqueue completion vhost: simplify getting the first in-flight index vhost: prepare async for mbuf to desc refactoring vhost: prepare sync for mbuf to desc refactoring vhost: merge sync and async mbuf to desc filling examples/vhost/ioat.c | 30 +- examples/vhost/ioat.h | 2 +- lib/vhost/rte_vhost_async.h | 42 +-- lib/vhost/vhost.c | 129 +++---- lib/vhost/vhost.h | 67 ++-- lib/vhost/vhost_user.c | 4 +- lib/vhost/virtio_net.c | 697 ++++++++++++++---------------------- 7 files changed, 379 insertions(+), 592 deletions(-) -- 2.31.1