From patchwork Fri Sep 2 06:41:35 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jason Wang X-Patchwork-Id: 1673406 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=QzVreTkL; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4MJq4P2nF8z1yn9 for ; Fri, 2 Sep 2022 17:17:41 +1000 (AEST) Received: from localhost ([::1]:44716 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oU0vq-0006Ig-Rr for incoming@patchwork.ozlabs.org; Fri, 02 Sep 2022 03:17:38 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:53452) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oU0O2-0007cg-3E for qemu-devel@nongnu.org; Fri, 02 Sep 2022 02:42:42 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:36671) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oU0O0-0004wU-Eu for qemu-devel@nongnu.org; Fri, 02 Sep 2022 02:42:41 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1662100958; 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=BhyPCbno7HOfAM4E5mN/cOhZxJGtVTvduZl3+uMBpIw=; b=QzVreTkLOGKEmsvvqgNoR/pgNaGhZ/iCBeaRBKZ7vJ3iPXQXQozkWirdTIrBrI0Oc8jssH OYJ0AecJeRaOZTnlEK+IHz3yRb6vCx2UoqH21IM+/+J7upOGleDgKz0FNl5AA+oMgXYGYq UqZmOjp57Fp2U51oKDD2Y8li+y9H+kY= 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-230-dae65KHMNvWS0MfxhHz8xA-1; Fri, 02 Sep 2022 02:42:37 -0400 X-MC-Unique: dae65KHMNvWS0MfxhHz8xA-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 5CA9580A0BF; Fri, 2 Sep 2022 06:42:37 +0000 (UTC) Received: from localhost.localdomain (ovpn-12-152.pek2.redhat.com [10.72.12.152]) by smtp.corp.redhat.com (Postfix) with ESMTP id 08EF11410F3C; Fri, 2 Sep 2022 06:42:34 +0000 (UTC) From: Jason Wang To: qemu-devel@nongnu.org, peter.maydell@linaro.org Cc: =?utf-8?q?Eugenio_P=C3=A9rez?= , Jason Wang Subject: [PULL 18/21] vdpa: Add virtio-net mac address via CVQ at start Date: Fri, 2 Sep 2022 14:41:35 +0800 Message-Id: <20220902064138.56468-19-jasowang@redhat.com> In-Reply-To: <20220902064138.56468-1-jasowang@redhat.com> References: <20220902064138.56468-1-jasowang@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.85 on 10.11.54.7 Received-SPF: pass client-ip=170.10.133.124; envelope-from=jasowang@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Eugenio Pérez This is needed so the destination vdpa device see the same state a the guest set in the source. Signed-off-by: Eugenio Pérez Acked-by: Jason Wang Signed-off-by: Jason Wang --- net/vhost-vdpa.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c index 3575bf6..640434d 100644 --- a/net/vhost-vdpa.c +++ b/net/vhost-vdpa.c @@ -363,11 +363,51 @@ static ssize_t vhost_vdpa_net_cvq_add(VhostVDPAState *s, size_t out_len, return vhost_svq_poll(svq); } +static int vhost_vdpa_net_load(NetClientState *nc) +{ + VhostVDPAState *s = DO_UPCAST(VhostVDPAState, nc, nc); + const struct vhost_vdpa *v = &s->vhost_vdpa; + const VirtIONet *n; + uint64_t features; + + assert(nc->info->type == NET_CLIENT_DRIVER_VHOST_VDPA); + + if (!v->shadow_vqs_enabled) { + return 0; + } + + n = VIRTIO_NET(v->dev->vdev); + features = n->parent_obj.guest_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, + }; + char *cursor = s->cvq_cmd_out_buffer; + ssize_t dev_written; + + memcpy(cursor, &ctrl, sizeof(ctrl)); + cursor += sizeof(ctrl); + memcpy(cursor, n->mac, sizeof(n->mac)); + + dev_written = vhost_vdpa_net_cvq_add(s, sizeof(ctrl) + sizeof(n->mac), + sizeof(virtio_net_ctrl_ack)); + if (unlikely(dev_written < 0)) { + return dev_written; + } + + return *((virtio_net_ctrl_ack *)s->cvq_cmd_in_buffer) != VIRTIO_NET_OK; + } + + return 0; +} + static NetClientInfo net_vhost_vdpa_cvq_info = { .type = NET_CLIENT_DRIVER_VHOST_VDPA, .size = sizeof(VhostVDPAState), .receive = vhost_vdpa_receive, .start = vhost_vdpa_net_cvq_start, + .load = vhost_vdpa_net_load, .stop = vhost_vdpa_net_cvq_stop, .cleanup = vhost_vdpa_cleanup, .has_vnet_hdr = vhost_vdpa_has_vnet_hdr,