From nobody Sat Nov 8 07:35:12 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (209.51.188.17 [209.51.188.17]) by mx.zohomail.com with SMTPS id 1550065436123822.0139823432185; Wed, 13 Feb 2019 05:43:56 -0800 (PST) Received: from localhost ([127.0.0.1]:57051 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gtupK-0008Oc-4j for importer@patchew.org; Wed, 13 Feb 2019 08:43:50 -0500 Received: from eggs.gnu.org ([209.51.188.92]:52845) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gtujg-0004Ad-1N for qemu-devel@nongnu.org; Wed, 13 Feb 2019 08:38:00 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gtuje-0006Z5-2k for qemu-devel@nongnu.org; Wed, 13 Feb 2019 08:37:59 -0500 Received: from mx1.redhat.com ([209.132.183.28]:52618) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gtujc-0006Gl-1O for qemu-devel@nongnu.org; Wed, 13 Feb 2019 08:37:57 -0500 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 94B70C0669B6; Wed, 13 Feb 2019 13:28:16 +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 2F22360856; Wed, 13 Feb 2019 13:28:13 +0000 (UTC) From: wexu@redhat.com To: qemu-devel@nongnu.org Date: Wed, 13 Feb 2019 08:25:46 -0500 Message-Id: <1550064346-17012-12-git-send-email-wexu@redhat.com> In-Reply-To: <1550064346-17012-1-git-send-email-wexu@redhat.com> References: <1550064346-17012-1-git-send-email-wexu@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.32]); Wed, 13 Feb 2019 13:28:16 +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] [PATCH 11/11] virtio: CLI and provide packed ring feature bit by default 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: tiwei.bie@intel.com, mst@redhat.com, jasowang@redhat.com, jfreiman@redhat.com, maxime.coquelin@redhat.com, wexu@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Wei Xu Add userspace and vhost kernel/user support. Add CLI "ring_packed=3Dtrue/false" to enable/disable packed ring provision. Usage: -device virtio-net-pci,netdev=3Dxx,mac=3Dxx:xx:xx:xx:xx:xx,ring_packed= =3Dfalse By default it is provided. Signed-off-by: Wei Xu --- hw/net/vhost_net.c | 2 ++ include/hw/virtio/virtio.h | 4 +++- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/hw/net/vhost_net.c b/hw/net/vhost_net.c index e037db6..f593086 100644 --- a/hw/net/vhost_net.c +++ b/hw/net/vhost_net.c @@ -53,6 +53,7 @@ static const int kernel_feature_bits[] =3D { VIRTIO_F_VERSION_1, VIRTIO_NET_F_MTU, VIRTIO_F_IOMMU_PLATFORM, + VIRTIO_F_RING_PACKED, VHOST_INVALID_FEATURE_BIT }; =20 @@ -78,6 +79,7 @@ static const int user_feature_bits[] =3D { VIRTIO_NET_F_MRG_RXBUF, VIRTIO_NET_F_MTU, VIRTIO_F_IOMMU_PLATFORM, + VIRTIO_F_RING_PACKED, =20 /* This bit implies RARP isn't sent by QEMU out of band */ VIRTIO_NET_F_GUEST_ANNOUNCE, diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h index 9c1fa07..2eb27d2 100644 --- a/include/hw/virtio/virtio.h +++ b/include/hw/virtio/virtio.h @@ -264,7 +264,9 @@ typedef struct VirtIORNGConf VirtIORNGConf; DEFINE_PROP_BIT64("any_layout", _state, _field, \ VIRTIO_F_ANY_LAYOUT, true), \ DEFINE_PROP_BIT64("iommu_platform", _state, _field, \ - VIRTIO_F_IOMMU_PLATFORM, false) + VIRTIO_F_IOMMU_PLATFORM, false), \ + DEFINE_PROP_BIT64("ring_packed", _state, _field, \ + VIRTIO_F_RING_PACKED, true) =20 hwaddr virtio_queue_get_desc_addr(VirtIODevice *vdev, int n); hwaddr virtio_queue_get_avail_addr(VirtIODevice *vdev, int n); --=20 1.8.3.1