From patchwork Wed Feb 14 11:28:00 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Si-Wei Liu X-Patchwork-Id: 13556458 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 73C64C48BC1 for ; Wed, 14 Feb 2024 12:42:18 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1raEXo-0003MM-Pe; Wed, 14 Feb 2024 07:39:20 -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 1raEXm-0003L3-36 for qemu-devel@nongnu.org; Wed, 14 Feb 2024 07:39:18 -0500 Received: from mx0b-00069f02.pphosted.com ([205.220.177.32]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1raEXk-0002ZJ-LJ for qemu-devel@nongnu.org; Wed, 14 Feb 2024 07:39:17 -0500 Received: from pps.filterd (m0246632.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 41EC4jPH014805; Wed, 14 Feb 2024 12:39:15 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=corp-2023-11-20; bh=3xeTxtjKUb5SEHPCBIFhkDleWoAGmOSUnREYOzQeEvM=; b=ZW+vrp3ytO8j4grH1w3DGCre3dqa6ePWhflrvCBWltW21QO59BBuVrr4veph9YHYK2Wc kzuPulm14xbvMZTPFOyQE2N+8wZ4J7WIK1mBQGOoTElCU23qFAEJqC9mkyThI7mdWYFh IkstjzlyUjvxI/goHr5+3kkkA76fKW3jXyBI1JlG2fIzF5u0FqPNCl+BHjJRP9xvmZKN DPf1a5/K37IBnmDPS+G9hzQwgs4YhKKAMRXoGuOdV6tENUemrjfxdHWdtqf7BMfuq4qj Wi+DzfwUfmcSvXJjSaQBIXZQMGtOWhB9EAK2fza4FgRIv+yz3r/jY9f3AjV80QwCDL0n Hg== Received: from phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta03.appoci.oracle.com [138.1.37.129]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 3w8w6v81sv-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 14 Feb 2024 12:39:15 +0000 Received: from pps.filterd (phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (8.17.1.19/8.17.1.19) with ESMTP id 41ECKqpv013766; Wed, 14 Feb 2024 12:39:14 GMT Received: from ban25x6uut24.us.oracle.com (ban25x6uut24.us.oracle.com [10.153.73.24]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTP id 3w6apbnn3q-11; Wed, 14 Feb 2024 12:39:14 +0000 From: Si-Wei Liu To: eperezma@redhat.com, jasowang@redhat.com, mst@redhat.com, dtatulea@nvidia.com, leiyang@redhat.com, yin31149@gmail.com Cc: qemu-devel@nongnu.org Subject: [PATCH 10/12] vdpa: define SVQ transitioning state for mode switching Date: Wed, 14 Feb 2024 03:28:00 -0800 Message-Id: <1707910082-10243-11-git-send-email-si-wei.liu@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1707910082-10243-1-git-send-email-si-wei.liu@oracle.com> References: <1707910082-10243-1-git-send-email-si-wei.liu@oracle.com> X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-02-14_05,2024-02-14_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=999 adultscore=0 suspectscore=0 mlxscore=0 phishscore=0 bulkscore=0 malwarescore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2402140098 X-Proofpoint-GUID: _XqDrtbt38swt3tho6ZMiugWxM-gSCkL X-Proofpoint-ORIG-GUID: _XqDrtbt38swt3tho6ZMiugWxM-gSCkL Received-SPF: pass client-ip=205.220.177.32; envelope-from=si-wei.liu@oracle.com; helo=mx0b-00069f02.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, 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_H3=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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Will be used in following patches. DISABLING(-1) means SVQ is being switched off to passthrough mode. ENABLING(1) means passthrough VQs are being switched to SVQ. DONE(0) means SVQ switching is completed. Signed-off-by: Si-Wei Liu --- include/hw/virtio/vhost-vdpa.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/hw/virtio/vhost-vdpa.h b/include/hw/virtio/vhost-vdpa.h index ad754eb..449bf5c 100644 --- a/include/hw/virtio/vhost-vdpa.h +++ b/include/hw/virtio/vhost-vdpa.h @@ -30,6 +30,12 @@ typedef struct VhostVDPAHostNotifier { void *addr; } VhostVDPAHostNotifier; +typedef enum SVQTransitionState { + SVQ_TSTATE_DISABLING = -1, + SVQ_TSTATE_DONE, + SVQ_TSTATE_ENABLING +} SVQTransitionState; + /* Info shared by all vhost_vdpa device models */ typedef struct vhost_vdpa_shared { int device_fd; @@ -67,6 +73,9 @@ typedef struct vhost_vdpa_shared { /* Vdpa must send shadow addresses as IOTLB key for data queues, not GPA */ bool shadow_data; + + /* SVQ switching is in progress, or already completed? */ + SVQTransitionState svq_switching; } VhostVDPAShared; typedef struct vhost_vdpa {