From patchwork Thu Oct 11 14:08:23 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wei Xu X-Patchwork-Id: 982501 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 42WCXQ1N3Jz9s3l for ; Fri, 12 Oct 2018 01:09:58 +1100 (AEDT) Received: from localhost ([::1]:34681 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gAbez-0004mT-Q6 for incoming@patchwork.ozlabs.org; Thu, 11 Oct 2018 10:09:53 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39166) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gAbeB-0004g3-Ce for qemu-devel@nongnu.org; Thu, 11 Oct 2018 10:09:08 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gAbe5-0005fn-Nr for qemu-devel@nongnu.org; Thu, 11 Oct 2018 10:09:03 -0400 Received: from mx1.redhat.com ([209.132.183.28]:37538) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gAbe5-0005eN-HE for qemu-devel@nongnu.org; Thu, 11 Oct 2018 10:08:57 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id D40D3C065F83; Thu, 11 Oct 2018 14:08:55 +0000 (UTC) Received: from dell-per430-12.lab.eng.pek2.redhat.com (dell-per430-12.lab.eng.pek2.redhat.com [10.73.196.55]) by smtp.corp.redhat.com (Postfix) with ESMTP id E247B62A95; Thu, 11 Oct 2018 14:08:53 +0000 (UTC) From: wexu@redhat.com To: qemu-devel@nongnu.org Date: Thu, 11 Oct 2018 10:08:23 -0400 Message-Id: <1539266915-15216-1-git-send-email-wexu@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Thu, 11 Oct 2018 14:08:55 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [RFC v3 00/12] packed ring virtio-net userspace backend support X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: maxime.coquelin@redhat.com, jasowang@redhat.com, jfreimann@redhat.com, wexu@redhat.com, tiwei.bie@intel.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Wei Xu code base: https://github.com/Whishay/qemu.git Todo: - migration has not been support yet v2->v3 - addressed performance issue - fixed feedback from v2 v1->v2 - sync to tiwei's v5 - reuse memory cache function with 1.0 - dropped detach patch and notification helper(04 & 05 in v1) - guest virtio-net driver unload/reload support - event suppression support(not tested) - addressed feedback from v1 Wei Xu (12): virtio: introduce packed ring definitions virtio: redefine structure & memory cache for packed ring virtio: init memory cache for packed ring virtio: init wrap counter for packed ring virtio: init and desc empty check for packed ring virtio: get avail bytes check for packed ring virtio: fill/flush/pop for packed ring virtio: event suppression support for packed ring virtio-net: fill head desc after done all in a chain virtio: packed ring feature bit for userspace backend virtio: enable packed ring via a new command line virtio: feature vhost-net support for packed ring hw/net/vhost_net.c | 1 + hw/net/virtio-net.c | 11 +- hw/virtio/vhost.c | 19 +- hw/virtio/virtio.c | 685 +++++++++++++++++++++++-- include/hw/virtio/virtio.h | 9 +- include/standard-headers/linux/virtio_config.h | 15 + include/standard-headers/linux/virtio_ring.h | 43 ++ 7 files changed, 736 insertions(+), 47 deletions(-)