From patchwork Sat Apr 18 10:22:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Eugenio Perez Martin X-Patchwork-Id: 11496495 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E1DB313B2 for ; Sat, 18 Apr 2020 10:24:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CA3F322202 for ; Sat, 18 Apr 2020 10:24:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="DElKJzmZ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726173AbgDRKX6 (ORCPT ); Sat, 18 Apr 2020 06:23:58 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:57124 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726054AbgDRKW4 (ORCPT ); Sat, 18 Apr 2020 06:22:56 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1587205375; 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=NTpuDlc6qvgZkv1wgOF0V1ahvk1X+aQkxyfimEc4tRM=; b=DElKJzmZG+Tl/eXVTxO+72qxzeuK+OwEjXjgvjBozIXMqE1teq1oig7xRw7szsQUQe+shu HlV4Aiu22bHy08G+D3xd2bB7KFR0EYNGfCeIJFSbvXWqrBnmuAKaJu0oKrJom0mQY5OzNm hqyW95Bc15+Va7AbGKbm6k4SfsgAvS0= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-30-2j2JnosrPRypXaWZa6e8Ag-1; Sat, 18 Apr 2020 06:22:48 -0400 X-MC-Unique: 2j2JnosrPRypXaWZa6e8Ag-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 938378017F5; Sat, 18 Apr 2020 10:22:47 +0000 (UTC) Received: from eperezma.remote.csb (ovpn-112-94.ams2.redhat.com [10.36.112.94]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3E6641001DC2; Sat, 18 Apr 2020 10:22:42 +0000 (UTC) From: =?utf-8?q?Eugenio_P=C3=A9rez?= To: "Michael S. Tsirkin" Cc: "virtualization@lists.linux-foundation.org" , "linux-kernel@vger.kernel.org" , Halil Pasic , Cornelia Huck , =?utf-8?q?Eugenio_P=C3=A9rez?= , Christian Borntraeger , kvm list , Stephen Rothwell , Linux Next Mailing List Subject: [PATCH v3 6/8] tools/virtio: Extract virtqueue initialization in vq_reset Date: Sat, 18 Apr 2020 12:22:15 +0200 Message-Id: <20200418102217.32327-7-eperezma@redhat.com> In-Reply-To: <20200418102217.32327-1-eperezma@redhat.com> References: <20200418102217.32327-1-eperezma@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org So we can reset after that in the main loop. Signed-off-by: Eugenio Pérez --- tools/virtio/virtio_test.c | 21 ++++++++++++++------- 1 file changed, 14 insertions(+), 7 deletions(-) diff --git a/tools/virtio/virtio_test.c b/tools/virtio/virtio_test.c index 0a247ba3b899..bc16c818bda3 100644 --- a/tools/virtio/virtio_test.c +++ b/tools/virtio/virtio_test.c @@ -94,6 +94,19 @@ void vhost_vq_setup(struct vdev_info *dev, struct vq_info *info) assert(r >= 0); } +static void vq_reset(struct vq_info *info, int num, struct virtio_device *vdev) +{ + if (info->vq) + vring_del_virtqueue(info->vq); + + memset(info->ring, 0, vring_size(num, 4096)); + vring_init(&info->vring, num, info->ring, 4096); + info->vq = __vring_new_virtqueue(info->idx, info->vring, vdev, true, + false, vq_notify, vq_callback, "test"); + assert(info->vq); + info->vq->priv = info; +} + static void vq_info_add(struct vdev_info *dev, int num) { struct vq_info *info = &dev->vqs[dev->nvqs]; @@ -103,13 +116,7 @@ static void vq_info_add(struct vdev_info *dev, int num) info->call = eventfd(0, EFD_NONBLOCK); r = posix_memalign(&info->ring, 4096, vring_size(num, 4096)); assert(r >= 0); - memset(info->ring, 0, vring_size(num, 4096)); - vring_init(&info->vring, num, info->ring, 4096); - info->vq = - __vring_new_virtqueue(info->idx, info->vring, &dev->vdev, true, - false, vq_notify, vq_callback, "test"); - assert(info->vq); - info->vq->priv = info; + vq_reset(info, num, &dev->vdev); vhost_vq_setup(dev, info); dev->fds[info->idx].fd = info->call; dev->fds[info->idx].events = POLLIN;