From nobody Mon Feb 9 12:09:18 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1670260064; cv=none; d=zohomail.com; s=zohoarc; b=kp85SC/cIYib4ootT2R7L5REzet+C3mk2M7VcdREoZ7d5qI3uFwdtxWWpiXk4P7ZaCEixwmL0yrwmrkhmSIjYq2zo32eCjdJxknSJZJ+7OIvdNLMFqUU+5nbrAJ/T5bPrFuesFIBZcm7mhYzfU8jmIdJHLsmGwS9iYS1t4yzhFQ= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1670260064; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=PZJN+lQaiR6aayLRZJJMIFQUTsms4Mb/PeILWZOWtuY=; b=iHKj+aL6cFI0hP0NHcfW6k8m0q6DVXY9IaGdmLx+j5RU/F7tpxCHBwtlw83fm7Th2VZaw0Dm2PdIftCbPRYIDbEVaE+f6sSIawCaHCu9mMA2Eh6U5u4p33zFRdyV1FRSbbtgFczF8P9F6K67DkJGMYb99vy5KHj09fgCglqVdXg= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; 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=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1670260064210539.9695061592658; Mon, 5 Dec 2022 09:07:44 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1p2Ets-0000U9-Cz; Mon, 05 Dec 2022 12:05:04 -0500 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 1p2Etq-0000U0-Go for qemu-devel@nongnu.org; Mon, 05 Dec 2022 12:05:02 -0500 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 1p2Eto-0002fD-VX for qemu-devel@nongnu.org; Mon, 05 Dec 2022 12:05:02 -0500 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-628-8VQ_liRANpKIKSszfRXboA-1; Mon, 05 Dec 2022 12:04:56 -0500 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 6AB86185A794; Mon, 5 Dec 2022 17:04:55 +0000 (UTC) Received: from eperezma.remote.csb (unknown [10.39.194.167]) by smtp.corp.redhat.com (Postfix) with ESMTP id A4816C16922; Mon, 5 Dec 2022 17:04:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1670259900; 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=PZJN+lQaiR6aayLRZJJMIFQUTsms4Mb/PeILWZOWtuY=; b=Luxu4sc4lKSDCAiwyScGAkIb4Up1qUEoY3oLaWzhil1agvn6sKvZDriru+2uOOsEUcYGNM eDv6sJxciHf26emPwZZI9A2+28DCKLkmlAyUJ6T7X8LJboOX3dREQ08RnBW2KW7i46cbzC 1awoYHWBTq7ydEBQT5SY6YOVRo6V0c4= X-MC-Unique: 8VQ_liRANpKIKSszfRXboA-1 From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= To: qemu-devel@nongnu.org Cc: Liuxiangdong , Stefan Hajnoczi , Jason Wang , Harpreet Singh Anand , Gautam Dawar , Zhu Lingshan , Cindy Lu , Si-Wei Liu , "Michael S. Tsirkin" , "Dr. David Alan Gilbert" , Laurent Vivier , Eli Cohen , Stefano Garzarella , Juan Quintela , Parav Pandit Subject: [RFC PATCH for 8.0 04/13] vhost: add vhost_svq_save_inflight Date: Mon, 5 Dec 2022 18:04:27 +0100 Message-Id: <20221205170436.2977336-5-eperezma@redhat.com> In-Reply-To: <20221205170436.2977336-1-eperezma@redhat.com> References: <20221205170436.2977336-1-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 10.11.54.8 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: -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, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1670260066630100003 This allows SVQ to return all the inflight descriptors in order. TODO: Rewind descriptors that can be fetched from avail ring again. Signed-off-by: Eugenio P=C3=A9rez --- hw/virtio/vhost-shadow-virtqueue.h | 2 ++ hw/virtio/vhost-shadow-virtqueue.c | 20 ++++++++++++++++++++ 2 files changed, 22 insertions(+) diff --git a/hw/virtio/vhost-shadow-virtqueue.h b/hw/virtio/vhost-shadow-vi= rtqueue.h index a01a7d4a18..e82da4b55c 100644 --- a/hw/virtio/vhost-shadow-virtqueue.h +++ b/hw/virtio/vhost-shadow-virtqueue.h @@ -133,6 +133,8 @@ size_t vhost_svq_device_area_size(const VhostShadowVirt= queue *svq); =20 void vhost_svq_start(VhostShadowVirtqueue *svq, VirtIODevice *vdev, VirtQueue *vq); +VirtQueueElement **vhost_svq_save_inflight(VhostShadowVirtqueue *svq, + uint32_t *num); void vhost_svq_stop(VhostShadowVirtqueue *svq); =20 VhostShadowVirtqueue *vhost_svq_new(VhostIOVATree *iova_tree, diff --git a/hw/virtio/vhost-shadow-virtqueue.c b/hw/virtio/vhost-shadow-vi= rtqueue.c index e50bfba6dc..029ccee957 100644 --- a/hw/virtio/vhost-shadow-virtqueue.c +++ b/hw/virtio/vhost-shadow-virtqueue.c @@ -676,6 +676,26 @@ void vhost_svq_start(VhostShadowVirtqueue *svq, VirtIO= Device *vdev, } } =20 +VirtQueueElement **vhost_svq_save_inflight(VhostShadowVirtqueue *svq, + uint32_t *num) +{ + GPtrArray *aret =3D g_ptr_array_new(); + SVQDescState *s, *tmp; + + QTAILQ_FOREACH_SAFE(s, &svq->desc_state_avail, entry, tmp) { + VirtQueueElement *elem =3D s->elem; + + virtqueue_detach_element(svq->vq, elem, 0); + g_ptr_array_add(aret, elem); + QTAILQ_REMOVE(&svq->desc_state_avail, s, entry); + } + + *num =3D aret->len; + + /* TODO: return g_ptr_array_steal(aret) when min glib >=3D 2.64 */ + return (void *)g_ptr_array_free(aret, false); +} + /** * Stop the shadow virtqueue operation. * @svq: Shadow Virtqueue --=20 2.31.1