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 BB992C433FE for ; Fri, 8 Apr 2022 13:52:57 +0000 (UTC) Received: from localhost ([::1]:51450 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ncp2m-00041u-R7 for qemu-devel@archiver.kernel.org; Fri, 08 Apr 2022 09:52:56 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60638) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ncomG-0003bd-2O for qemu-devel@nongnu.org; Fri, 08 Apr 2022 09:35:53 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:27804) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ncoly-0003xY-Qb for qemu-devel@nongnu.org; Fri, 08 Apr 2022 09:35:50 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1649424926; 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=yfN2adIZit7o76ipLAOd0d/MR2JWCbn5Tn/hHrRcIZ8=; b=C2hUrLy3/9OhEDNoNGvDM4umi1QTSBDp5qixy3YCDU4hUIxUCulVN4mzUC3RvoNaNXhu5V d+1AP7h2vXTsKNxZNhlI17FpsL9IXrFRrwMXAQhWMLliagsQf2ybEAApn65Xfesn3/DrDE 36Nc+3N6jqik60znVOGhpQ8NKJ4LWNM= 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-375-73yhLVxBN_CBWxSK2BmSBg-1; Fri, 08 Apr 2022 09:35:22 -0400 X-MC-Unique: 73yhLVxBN_CBWxSK2BmSBg-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.rdu2.redhat.com [10.11.54.7]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 81B05381D8A9; Fri, 8 Apr 2022 13:35:21 +0000 (UTC) Received: from eperezma.remote.csb (unknown [10.39.192.119]) by smtp.corp.redhat.com (Postfix) with ESMTP id A0F941410F3B; Fri, 8 Apr 2022 13:35:18 +0000 (UTC) From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= To: qemu-devel@nongnu.org Subject: [RFC PATCH v5 19/23] vdpa: Add vhost_vdpa_start_control_svq Date: Fri, 8 Apr 2022 15:34:11 +0200 Message-Id: <20220408133415.1371760-20-eperezma@redhat.com> In-Reply-To: <20220408133415.1371760-1-eperezma@redhat.com> References: <20220408133415.1371760-1-eperezma@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.85 on 10.11.54.7 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=eperezma@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: , Cc: Laurent Vivier , Parav Pandit , Cindy Lu , "Michael S. Tsirkin" , Jason Wang , Cornelia Huck , Markus Armbruster , Gautam Dawar , Harpreet Singh Anand , "Gonglei \(Arei\)" , Peter Xu , Eli Cohen , Paolo Bonzini , Zhu Lingshan , Eric Blake , Liuxiangdong Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This will send CVQ commands in the destination machine, seting up everything o there is no guest-visible change. Signed-off-by: Eugenio Pérez --- net/vhost-vdpa.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c index a83da4616c..09fcc4a88e 100644 --- a/net/vhost-vdpa.c +++ b/net/vhost-vdpa.c @@ -206,10 +206,73 @@ static ssize_t vhost_vdpa_receive(NetClientState *nc, const uint8_t *buf, return 0; } +static bool vhost_vdpa_start_control_svq(VhostShadowVirtqueue *svq, + VirtIODevice *vdev) +{ + VirtIONet *n = VIRTIO_NET(vdev); + uint64_t features = vdev->host_features; + + if (features & BIT_ULL(VIRTIO_NET_F_CTRL_MAC_ADDR)) { + const struct virtio_net_ctrl_hdr ctrl = { + .class = VIRTIO_NET_CTRL_MAC, + .cmd = VIRTIO_NET_CTRL_MAC_ADDR_SET, + }; + uint8_t mac[6]; + const struct iovec data[] = { + { + .iov_base = (void *)&ctrl, + .iov_len = sizeof(ctrl), + },{ + .iov_base = mac, + .iov_len = sizeof(mac), + },{ + .iov_base = NULL, + .iov_len = sizeof(virtio_net_ctrl_ack), + } + }; + bool ret; + + /* TODO: Only best effort? */ + memcpy(mac, n->mac, sizeof(mac)); + ret = vhost_svq_inject(svq, data, 2, 1); + if (!ret) { + return false; + } + } + + return true; +} + +static void vhost_vdpa_start(NetClientState *nc) +{ + assert(nc->info->type == NET_CLIENT_DRIVER_VHOST_VDPA); + VhostVDPAState *s = DO_UPCAST(VhostVDPAState, nc, nc); + struct vhost_vdpa *v = &s->vhost_vdpa; + struct vhost_dev *dev = &s->vhost_net->dev; + VhostShadowVirtqueue *svq; + + if (nc->is_datapath) { + /* This is not the cvq dev */ + return; + } + + if (dev->vq_index + dev->nvqs != dev->vq_index_end) { + return; + } + + if (!v->shadow_vqs_enabled) { + return; + } + + svq = g_ptr_array_index(v->shadow_vqs, 0); + vhost_vdpa_start_control_svq(svq, dev->vdev); +} + static NetClientInfo net_vhost_vdpa_info = { .type = NET_CLIENT_DRIVER_VHOST_VDPA, .size = sizeof(VhostVDPAState), .receive = vhost_vdpa_receive, + .start = vhost_vdpa_start, .cleanup = vhost_vdpa_cleanup, .has_vnet_hdr = vhost_vdpa_has_vnet_hdr, .has_ufo = vhost_vdpa_has_ufo, -- 2.27.0