From patchwork Wed Oct 19 12:52:10 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Eugenio Perez Martin X-Patchwork-Id: 13011732 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 98EA4C4332F for ; Wed, 19 Oct 2022 13:12:36 +0000 (UTC) Received: from localhost ([::1]:48686 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ol8s6-00023w-40 for qemu-devel@archiver.kernel.org; Wed, 19 Oct 2022 09:12:35 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57336) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ol8Yw-0006Qu-3s for qemu-devel@nongnu.org; Wed, 19 Oct 2022 08:52:46 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:29873) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ol8Yu-0002Jl-OA for qemu-devel@nongnu.org; Wed, 19 Oct 2022 08:52:45 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1666183964; 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: in-reply-to:in-reply-to:references:references; bh=F5A6Wz4vTjMQXnGigxrbVFmdXH778LWcKk1IV3D0UUo=; b=SzJoOJOZWzK57tUPDS53LLdlvkPwYu2zI+Lp8Eu0O1BGJigBYbiD7rZAMtZFBhRIOrL8x9 kmVTORThY/M2Z3Ww5XFkR20uWVhanzRzb1/nOcmlVveUeNQhKSiac5vuHd/bH/n7poD2fi PJBEpVno56ogdbOtksqwHfAyH8O/Usg= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-657-e_O3ih92NVGFsrAf8InYYA-1; Wed, 19 Oct 2022 08:52:40 -0400 X-MC-Unique: e_O3ih92NVGFsrAf8InYYA-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 0C92587B2A2; Wed, 19 Oct 2022 12:52:40 +0000 (UTC) Received: from eperezma.remote.csb (unknown [10.39.192.14]) by smtp.corp.redhat.com (Postfix) with ESMTP id A17724081B61; Wed, 19 Oct 2022 12:52:36 +0000 (UTC) From: =?utf-8?q?Eugenio_P=C3=A9rez?= To: qemu-devel@nongnu.org Cc: Zhu Lingshan , Harpreet Singh Anand , Stefano Garzarella , Si-Wei Liu , Jason Wang , "Michael S. Tsirkin" , Cindy Lu , Laurent Vivier , Eli Cohen , Liuxiangdong , Parav Pandit , Gautam Dawar Subject: [RFC PATCH v2 8/8] vdpa: Offer VIRTIO_NET_F_GUEST_ANNOUNCE feature if SVQ is enabled Date: Wed, 19 Oct 2022 14:52:10 +0200 Message-Id: <20221019125210.226291-9-eperezma@redhat.com> In-Reply-To: <20221019125210.226291-1-eperezma@redhat.com> References: <20221019125210.226291-1-eperezma@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 Received-SPF: pass client-ip=170.10.129.124; envelope-from=eperezma@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -23 X-Spam_score: -2.4 X-Spam_bar: -- X-Spam_report: (-2.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.256, 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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" So qemu emulates it in case the device does not support it. Signed-off-by: Eugenio Pérez --- net/vhost-vdpa.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c index 5fda405a66..64442e8455 100644 --- a/net/vhost-vdpa.c +++ b/net/vhost-vdpa.c @@ -566,6 +566,9 @@ static NetClientState *net_vhost_vdpa_init(NetClientState *peer, /* VIRTIO_NET_F_STATUS is mandatory for _F_GUEST_ANNOUNCE. */ s->vhost_vdpa.added_features |= BIT_ULL(VIRTIO_NET_F_STATUS); + + /* We can emulate guest announce shadowing CVQ */ + s->vhost_vdpa.added_features |= BIT_ULL(VIRTIO_NET_F_GUEST_ANNOUNCE); } if (!is_datapath) { s->cvq_cmd_out_buffer = qemu_memalign(qemu_real_host_page_size(),