From nobody Mon Feb 9 01:30:48 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.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 (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1649868549796702.6464284193581; Wed, 13 Apr 2022 09:49:09 -0700 (PDT) Received: from localhost ([::1]:53068 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1negB2-00033N-7O for importer@patchew.org; Wed, 13 Apr 2022 12:49:08 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:33690) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nefvY-0001i3-ED for qemu-devel@nongnu.org; Wed, 13 Apr 2022 12:33:08 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:30006) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nefvW-0003Fq-TS for qemu-devel@nongnu.org; Wed, 13 Apr 2022 12:33:08 -0400 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-172-gq8zMQnpPk6k892kEeZzjw-1; Wed, 13 Apr 2022 12:33:01 -0400 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 C4975858F1C; Wed, 13 Apr 2022 16:33:00 +0000 (UTC) Received: from eperezma.remote.csb (unknown [10.39.192.167]) by smtp.corp.redhat.com (Postfix) with ESMTP id B314E1400B18; Wed, 13 Apr 2022 16:32:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1649867586; 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=IGUCDh24bpi8UFYWxHEdS8xKqUhTEIihi9+jsoTVqiQ=; b=CD+WeTisplGFzvjceHzPHtPZ2EVX5kRZHD/hoh45wiApyoDV25tlOR09nRER9A017stAPt Yn3eruD6yIWtR1sXL4xIo9HWnqYS6m0Fno/jA/B06mYZCfghI1ykUe2h4wkzOuej8/XMA2 BZt7uRioC37dkIb57lBmK8cx8WR7dIk= X-MC-Unique: gq8zMQnpPk6k892kEeZzjw-1 From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= To: qemu-devel@nongnu.org Subject: [RFC PATCH v7 21/25] vdpa: Add vhost_vdpa_start_control_svq Date: Wed, 13 Apr 2022 18:32:02 +0200 Message-Id: <20220413163206.1958254-22-eperezma@redhat.com> In-Reply-To: <20220413163206.1958254-1-eperezma@redhat.com> References: <20220413163206.1958254-1-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: quoted-printable Received-SPF: pass (zohomail.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; 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: -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_H5=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 , Gautam Dawar , Harpreet Singh Anand , "Gonglei \(Arei\)" , Eli Cohen , Liuxiangdong , Zhu Lingshan Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1649868551008100001 This will send CVQ commands in the destination machine, seting up everything o there is no guest-visible change. Signed-off-by: Eugenio P=C3=A9rez --- net/vhost-vdpa.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c index 38e6912255..15c3e4f703 100644 --- a/net/vhost-vdpa.c +++ b/net/vhost-vdpa.c @@ -203,10 +203,73 @@ static ssize_t vhost_vdpa_receive(NetClientState *nc,= const uint8_t *buf, return 0; } =20 +static bool vhost_vdpa_start_control_svq(VhostShadowVirtqueue *svq, + VirtIODevice *vdev) +{ + VirtIONet *n =3D VIRTIO_NET(vdev); + uint64_t features =3D vdev->host_features; + + if (features & BIT_ULL(VIRTIO_NET_F_CTRL_MAC_ADDR)) { + const struct virtio_net_ctrl_hdr ctrl =3D { + .class =3D VIRTIO_NET_CTRL_MAC, + .cmd =3D VIRTIO_NET_CTRL_MAC_ADDR_SET, + }; + uint8_t mac[6]; + const struct iovec data[] =3D { + { + .iov_base =3D (void *)&ctrl, + .iov_len =3D sizeof(ctrl), + },{ + .iov_base =3D mac, + .iov_len =3D sizeof(mac), + },{ + .iov_base =3D NULL, + .iov_len =3D sizeof(virtio_net_ctrl_ack), + } + }; + bool ret; + + /* TODO: Only best effort? */ + memcpy(mac, n->mac, sizeof(mac)); + ret =3D vhost_svq_inject(svq, data, 2, 1); + if (!ret) { + return false; + } + } + + return true; +} + +static void vhost_vdpa_start(NetClientState *nc) +{ + assert(nc->info->type =3D=3D NET_CLIENT_DRIVER_VHOST_VDPA); + VhostVDPAState *s =3D DO_UPCAST(VhostVDPAState, nc, nc); + struct vhost_vdpa *v =3D &s->vhost_vdpa; + struct vhost_dev *dev =3D &s->vhost_net->dev; + VhostShadowVirtqueue *svq; + + if (nc->is_datapath) { + /* This is not the cvq dev */ + return; + } + + if (dev->vq_index + dev->nvqs !=3D dev->vq_index_end) { + return; + } + + if (!v->shadow_vqs_enabled) { + return; + } + + svq =3D g_ptr_array_index(v->shadow_vqs, 0); + vhost_vdpa_start_control_svq(svq, dev->vdev); +} + static NetClientInfo net_vhost_vdpa_info =3D { .type =3D NET_CLIENT_DRIVER_VHOST_VDPA, .size =3D sizeof(VhostVDPAState), .receive =3D vhost_vdpa_receive, + .start =3D vhost_vdpa_start, .cleanup =3D vhost_vdpa_cleanup, .has_vnet_hdr =3D vhost_vdpa_has_vnet_hdr, .has_ufo =3D vhost_vdpa_has_ufo, --=20 2.27.0