From: "Eugenio Pérez" <eperezma@redhat•com>
To: virtualization@lists•linux-foundation.org,
Jason Wang <jasowang@redhat•com>,
kvm@vger•kernel.org, "Michael S. Tsirkin" <mst@redhat•com>,
netdev@vger•kernel.org, linux-kernel@vger•kernel.org
Cc: Stefano Garzarella <sgarzare@redhat•com>,
Longpeng <longpeng2@huawei•com>,
Zhu Lingshan <lingshan.zhu@intel•com>,
martinh@xilinx•com, hanand@xilinx•com,
Si-Wei Liu <si-wei.liu@oracle•com>,
dinang@xilinx•com, Eli Cohen <elic@nvidia•com>,
lvivier@redhat•com, pabloc@xilinx•com, gautam.dawar@amd•com,
Xie Yongji <xieyongji@bytedance•com>,
habetsm.xilinx@gmail•com,
Christophe JAILLET <christophe.jaillet@wanadoo•fr>,
tanuj.kamde@amd•com, eperezma@redhat•com,
Wu Zongyong <wuzongyong@linux•alibaba.com>,
martinpo@xilinx•com, lulu@redhat•com, ecree.xilinx@gmail•com,
Parav Pandit <parav@nvidia•com>,
Dan Carpenter <dan.carpenter@oracle•com>,
Zhang Min <zhang.min9@zte•com.cn>
Subject: [PATCH 1/4] vdpa: Add stop operation
Date: Fri, 20 May 2022 19:23:22 +0200 [thread overview]
Message-ID: <20220520172325.980884-2-eperezma@redhat.com> (raw)
In-Reply-To: <20220520172325.980884-1-eperezma@redhat.com>
This operation is optional: It it's not implemented, backend feature bit
will not be exposed.
Signed-off-by: Eugenio Pérez <eperezma@redhat•com>
---
include/linux/vdpa.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h
index 15af802d41c4..ddfebc4e1e01 100644
--- a/include/linux/vdpa.h
+++ b/include/linux/vdpa.h
@@ -215,6 +215,11 @@ struct vdpa_map_file {
* @reset: Reset device
* @vdev: vdpa device
* Returns integer: success (0) or error (< 0)
+ * @stop: Stop or resume the device (optional, but it must
+ * be implemented if require device stop)
+ * @vdev: vdpa device
+ * @stop: stop (true), not stop (false)
+ * Returns integer: success (0) or error (< 0)
* @get_config_size: Get the size of the configuration space includes
* fields that are conditional on feature bits.
* @vdev: vdpa device
@@ -316,6 +321,7 @@ struct vdpa_config_ops {
u8 (*get_status)(struct vdpa_device *vdev);
void (*set_status)(struct vdpa_device *vdev, u8 status);
int (*reset)(struct vdpa_device *vdev);
+ int (*stop)(struct vdpa_device *vdev, bool stop);
size_t (*get_config_size)(struct vdpa_device *vdev);
void (*get_config)(struct vdpa_device *vdev, unsigned int offset,
void *buf, unsigned int len);
--
2.27.0
next prev parent reply other threads:[~2022-05-20 17:23 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-20 17:23 [PATCH 0/4] Implement vdpasim stop operation Eugenio Pérez
2022-05-20 17:23 ` Eugenio Pérez [this message]
2022-05-21 10:13 ` [PATCH 1/4] vdpa: Add " Si-Wei Liu
2022-05-23 19:20 ` Eugenio Perez Martin
2022-05-23 23:54 ` Si-Wei Liu
2022-05-24 0:01 ` Si-Wei Liu
2022-05-24 2:45 ` Jason Wang
2022-05-24 7:38 ` Eugenio Perez Martin
2022-05-24 7:09 ` Stefano Garzarella
2022-05-24 7:42 ` Eugenio Perez Martin
2022-05-24 7:51 ` Stefano Garzarella
2022-05-20 17:23 ` [PATCH 2/4] vhost-vdpa: introduce STOP backend feature bit Eugenio Pérez
2022-05-21 10:24 ` Si-Wei Liu
2022-05-23 9:57 ` Eugenio Perez Martin
2022-05-20 17:23 ` [PATCH 3/4] vhost-vdpa: uAPI to stop the device Eugenio Pérez
2022-05-21 5:20 ` kernel test robot
2022-05-21 8:36 ` Martin Habets
2022-05-23 8:11 ` Eugenio Perez Martin
2022-05-20 17:23 ` [PATCH 4/4] vdpa_sim: Implement stop vdpa op Eugenio Pérez
2022-05-23 8:27 ` Stefano Garzarella
2022-05-23 19:07 ` Eugenio Perez Martin
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