From nobody Mon Feb 9 04:44:22 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=1657971903; cv=none; d=zohomail.com; s=zohoarc; b=H/Nnuipt4fMefdmD71np/SRp1vcgYrtcEWAazk4N5hJyjIDJmENbaxhIYu6UsKNMDZAMFRZZn0uIpshtyMWCu82oxuoxxUGH/mp2FRo0rDPLZ0ogoXd3RMc5u1P+Cj3ntr8Qh7yjgOj0wrIAS7d5lJJ/LfccFo4YrQM8ND1y/t0= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1657971903; 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=iHt0mH1Q+LrySXJT1nR/45/olx9LCuPY9Q3fpbAwxDY=; b=EpaiFPDwkvToTt6Dv6lEDEI7ntOGGb29QSr52Y2fYAQWzXJl3blv5mCQeUU9bwLln3cfdQOWqiiXdG8NIWRq6KOjMkk724xMmwY4cfWVc+M5jjo5GRiBAAB69dgbBDpuRtwxcX9uH7VLNX6sriMcoH6Z6idC/GyjFbonOo0W/Zc= 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 1657971903375159.35561453087257; Sat, 16 Jul 2022 04:45:03 -0700 (PDT) Received: from localhost ([::1]:51250 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oCgEI-00066v-BP for importer@patchew.org; Sat, 16 Jul 2022 07:45:02 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:52908) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oCg4X-0006I3-0i for qemu-devel@nongnu.org; Sat, 16 Jul 2022 07:34:57 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:51100) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oCg4V-000717-Ff for qemu-devel@nongnu.org; Sat, 16 Jul 2022 07:34:56 -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-64-QZwM9g0VPHqwVgKb59fK1g-1; Sat, 16 Jul 2022 07:34:50 -0400 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 4D46A801231; Sat, 16 Jul 2022 11:34:50 +0000 (UTC) Received: from eperezma.remote.csb (unknown [10.39.192.64]) by smtp.corp.redhat.com (Postfix) with ESMTP id EF91D40E80E0; Sat, 16 Jul 2022 11:34:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1657971293; 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=iHt0mH1Q+LrySXJT1nR/45/olx9LCuPY9Q3fpbAwxDY=; b=GGpDNSVgX18oNmBp2jWV2RcKzaChDwYVW0vRI6zzoVIKQOuPlGqXa1K/4e44b+bL94mfOf xkyNibuJKekW5dmdUsDHqTGAuR2A1HcX5ZgEDg0BdSF3ZVigHngjLJLJGRMGS6jE3iJLeR jOgCbnNZmCFZWNYfHHRnFYbCA0ibcuA= X-MC-Unique: QZwM9g0VPHqwVgKb59fK1g-1 From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= To: qemu-devel@nongnu.org Cc: Harpreet Singh Anand , Stefano Garzarella , Laurent Vivier , Eli Cohen , Parav Pandit , Markus Armbruster , Eric Blake , Zhu Lingshan , Paolo Bonzini , "Michael S. Tsirkin" , Cindy Lu , Cornelia Huck , Liuxiangdong , Jason Wang , Stefan Hajnoczi , "Gonglei (Arei)" , Gautam Dawar Subject: [RFC PATCH 07/12] vhost: Add VhostVDPAStartOp operation Date: Sat, 16 Jul 2022 13:34:02 +0200 Message-Id: <20220716113407.2730331-8-eperezma@redhat.com> In-Reply-To: <20220716113407.2730331-1-eperezma@redhat.com> References: <20220716113407.2730331-1-eperezma@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 2.84 on 10.11.54.2 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: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 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_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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1657971904737100001 It allows to run commands at start of the device, before it have enabled any queue. Signed-off-by: Eugenio P=C3=A9rez --- hw/virtio/vhost-shadow-virtqueue.h | 3 +++ include/hw/virtio/vhost-vdpa.h | 5 +++++ hw/virtio/vhost-vdpa.c | 8 ++++++++ 3 files changed, 16 insertions(+) diff --git a/hw/virtio/vhost-shadow-virtqueue.h b/hw/virtio/vhost-shadow-vi= rtqueue.h index 03eb7ff670..210fe393cd 100644 --- a/hw/virtio/vhost-shadow-virtqueue.h +++ b/hw/virtio/vhost-shadow-virtqueue.h @@ -26,6 +26,8 @@ typedef struct SVQDescState { } SVQDescState; =20 typedef struct VhostShadowVirtqueue VhostShadowVirtqueue; +typedef int (*ShadowVirtQueueStart)(VhostShadowVirtqueue *svq, + void *opaque); =20 /** * Callback to handle an avail buffer. @@ -43,6 +45,7 @@ typedef int (*VirtQueueAvailCallback)(VhostShadowVirtqueu= e *svq, void *vq_callback_opaque); =20 typedef struct VhostShadowVirtqueueOps { + ShadowVirtQueueStart start; VirtQueueAvailCallback avail_handler; } VhostShadowVirtqueueOps; =20 diff --git a/include/hw/virtio/vhost-vdpa.h b/include/hw/virtio/vhost-vdpa.h index d10a89303e..b7d18b4e30 100644 --- a/include/hw/virtio/vhost-vdpa.h +++ b/include/hw/virtio/vhost-vdpa.h @@ -24,6 +24,10 @@ typedef struct VhostVDPAHostNotifier { void *addr; } VhostVDPAHostNotifier; =20 +struct vhost_vdpa; +/* Called after send DRIVER_OK but after enabling vrings */ +typedef int (*VhostVDPAStartOp)(struct vhost_vdpa *v); + typedef struct vhost_vdpa { int device_fd; int index; @@ -39,6 +43,7 @@ typedef struct vhost_vdpa { GPtrArray *shadow_vqs; const VhostShadowVirtqueueOps *shadow_vq_ops; void *shadow_vq_ops_opaque; + VhostVDPAStartOp start_op; struct vhost_dev *dev; VhostVDPAHostNotifier notifier[VIRTIO_QUEUE_MAX]; } VhostVDPA; diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c index 1d8829c619..48f031b8c0 100644 --- a/hw/virtio/vhost-vdpa.c +++ b/hw/virtio/vhost-vdpa.c @@ -1136,6 +1136,14 @@ static int vhost_vdpa_dev_start(struct vhost_dev *de= v, bool started) if (unlikely(r)) { return r; } + + if (v->start_op) { + r =3D v->start_op(v); + if (unlikely(r)) { + return r; + } + } + vhost_vdpa_set_vring_ready(dev); } else { vhost_vdpa_reset_device(dev); --=20 2.31.1