From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2A84FECAAA1 for ; Fri, 28 Oct 2022 15:21:21 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ooR8v-0003lW-5e; Fri, 28 Oct 2022 11:19:33 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ooR8t-0003ky-L9 for qemu-devel@nongnu.org; Fri, 28 Oct 2022 11:19:31 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ooR8s-0003rA-8J for qemu-devel@nongnu.org; Fri, 28 Oct 2022 11:19:31 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1666970368; 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=NX2vjgjt/G6+lXMb7DjqzXYiHMhz7ZPJ909P2ADLdHQ=; b=Bl+p8uqIs+o2VUc2wliX3CIrwwiVz+rJAH8gelhNJ3wNNNII/r0fVQFZQBSRNw4XhwMged Z2gy7rGl/t8KzwQ12v/UlVkKTHDIhSRU/XQKbp1hO38duLSqMfQpwkyOI+gnobT4h/WXsS 6pGDVOad2899Q8pdf4jiDxdorMgCyz8= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-484-zCy6yGUxM5WD9Cx9ZfN-pw-1; Fri, 28 Oct 2022 11:19:24 -0400 X-MC-Unique: zCy6yGUxM5WD9Cx9ZfN-pw-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 73D0C29AA38B; Fri, 28 Oct 2022 15:19:23 +0000 (UTC) Received: from eperezma.remote.csb (unknown [10.39.192.128]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3C14D2024CB7; Fri, 28 Oct 2022 15:19:20 +0000 (UTC) From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= To: qemu-devel@nongnu.org Cc: Cindy Lu , Harpreet Singh Anand , Zhu Lingshan , Stefano Garzarella , Gautam Dawar , Eli Cohen , Parav Pandit , Jason Wang , Si-Wei Liu , "Michael S. Tsirkin" , Liuxiangdong , Laurent Vivier Subject: [PATCH v2 0/3] Emulate status feature in vhost-vdpa net Date: Fri, 28 Oct 2022 17:19:14 +0200 Message-Id: <20221028151917.260038-1-eperezma@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.1 on 10.11.54.4 Received-SPF: pass client-ip=170.10.133.124; envelope-from=eperezma@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.516, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Qemu-devel" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org The net config space is already copied from the device so it can me modifie= d=0D by qemu. In particular, this is already done to fix cases where the NIC doe= s=0D not expose the right fields.=0D =0D It's trivial to emulate _F_STATE with qemu if not supported by the device,= =0D sice a valid approach is to always show the link as up. If the feature is=0D already supported by the device, no config space modification is needed.=0D =0D This is a pre requisite to use other features like _F_GUEST_ANNOUNCE, since= =0D _F_STATUS is needed for the guest to access the status.=0D =0D These patches are sent on top of [1] series, so trivial conflicts could ari= se=0D if it is applied directly on master. Future versions can be not based on=0D it is more convenient.=0D =0D v2:=0D * Move feature handling to vhost_net, instead of force depending on the=0D backend.=0D =0D Eugenio P=C3=A9rez (3):=0D virtio_net: Modify virtio_net_get_config to early return=0D virtio_net: Handle _F_STATUS emulation in virtio_net_get_config=0D vhost_vdpa: move VIRTIO_NET_F_STATUS handling to vhost_net=0D =0D hw/net/vhost_net.c | 13 +++++++++++++=0D hw/net/virtio-net.c | 39 ++++++++++++++++++++++++---------------=0D net/vhost-vdpa.c | 1 -=0D 3 files changed, 37 insertions(+), 16 deletions(-)=0D =0D -- =0D 2.31.1=0D =0D