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: 10636661 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7B19B5CAF for ; Thu, 11 Oct 2018 14:10:43 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6F5BA2B7F2 for ; Thu, 11 Oct 2018 14:10:43 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6DDC12B85E; Thu, 11 Oct 2018 14:10:43 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 04BF32B7F2 for ; Thu, 11 Oct 2018 14:10:42 +0000 (UTC) Received: from localhost ([::1]:34691 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gAbfm-0005yu-6Y for patchwork-qemu-devel@patchwork.kernel.org; Thu, 11 Oct 2018 10:10:42 -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+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP 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(-)