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Fri, 26 Mar 2021 05:45:06 +0000 From: Dongli Zhang To: qemu-block@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH 3/6] virtio-blk-pci: implement device event interface for kick/call Date: Thu, 25 Mar 2021 22:44:30 -0700 Message-Id: <20210326054433.11762-4-dongli.zhang@oracle.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210326054433.11762-1-dongli.zhang@oracle.com> References: <20210326054433.11762-1-dongli.zhang@oracle.com> Content-Type: text/plain X-Originating-IP: [138.3.200.16] X-ClientProxiedBy: BYAPR02CA0053.namprd02.prod.outlook.com (2603:10b6:a03:54::30) To DM6PR10MB2668.namprd10.prod.outlook.com (2603:10b6:5:b2::25) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost.localdomain (138.3.200.16) by BYAPR02CA0053.namprd02.prod.outlook.com (2603:10b6:a03:54::30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3977.25 via Frontend Transport; Fri, 26 Mar 2021 05:45:05 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: a986a158-89a5-4043-a829-08d8f01a4f66 X-MS-TrafficTypeDiagnostic: DM6PR10MB3068: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:138; 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envelope-from=dongli.zhang@oracle.com; helo=userp2120.oracle.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, MSGID_FROM_MTA_HEADER=0.001, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, fam@euphon.net, berrange@redhat.com, ehabkost@redhat.com, mst@redhat.com, jasowang@redhat.com, joe.jin@oracle.com, armbru@redhat.com, dgilbert@redhat.com, stefanha@redhat.com, pbonzini@redhat.com, mreitz@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This is to implement the device event interface for virtio-blk-pci. Signed-off-by: Dongli Zhang --- hw/block/virtio-blk.c | 9 +++++++++ hw/virtio/virtio-blk-pci.c | 10 ++++++++++ include/hw/virtio/virtio-blk.h | 2 ++ 3 files changed, 21 insertions(+) diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c index d28979efb8..2b3583a913 100644 --- a/hw/block/virtio-blk.c +++ b/hw/block/virtio-blk.c @@ -1118,6 +1118,15 @@ static int virtio_blk_load_device(VirtIODevice *vdev, QEMUFile *f, return 0; } +void virtio_blk_device_event(DeviceState *dev, int event, int queue, + Error **errp) +{ + VirtIOBlock *s = VIRTIO_BLK(dev); + bool irqfd = s->dataplane_started && !s->dataplane_disabled; + + virtio_device_event(dev, event, queue, irqfd, errp); +} + static void virtio_resize_cb(void *opaque) { VirtIODevice *vdev = opaque; diff --git a/hw/virtio/virtio-blk-pci.c b/hw/virtio/virtio-blk-pci.c index 9d5795810c..f1fc72e7f1 100644 --- a/hw/virtio/virtio-blk-pci.c +++ b/hw/virtio/virtio-blk-pci.c @@ -47,6 +47,15 @@ static Property virtio_blk_pci_properties[] = { DEFINE_PROP_END_OF_LIST(), }; +static void virtio_blk_pci_event(DeviceState *dev, int event, int queue, + Error **errp) +{ + VirtIOBlkPCI *vblk = VIRTIO_BLK_PCI(dev); + DeviceState *vdev = DEVICE(&vblk->vdev); + + virtio_blk_device_event(vdev, event, queue, errp); +} + static void virtio_blk_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) { VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(vpci_dev); @@ -72,6 +81,7 @@ static void virtio_blk_pci_class_init(ObjectClass *klass, void *data) set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); device_class_set_props(dc, virtio_blk_pci_properties); + dc->event = virtio_blk_pci_event; k->realize = virtio_blk_pci_realize; pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_BLOCK; diff --git a/include/hw/virtio/virtio-blk.h b/include/hw/virtio/virtio-blk.h index 29655a406d..500be01dff 100644 --- a/include/hw/virtio/virtio-blk.h +++ b/include/hw/virtio/virtio-blk.h @@ -92,5 +92,7 @@ typedef struct MultiReqBuffer { bool virtio_blk_handle_vq(VirtIOBlock *s, VirtQueue *vq); void virtio_blk_process_queued_requests(VirtIOBlock *s, bool is_bh); +void virtio_blk_device_event(DeviceState *dev, int event, int queue, + Error **errp); #endif -- 2.17.1