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vdpa: Add suspend operation

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This operation is optional: It it's not implemented, backend feature bit
will not be exposed.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Message-Id: <20220810171512.2343333-2-eperezma@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Eugenio Pérez 2022-08-10 19:15:09 +02:00 committed by Michael S. Tsirkin
parent 8d12ec1029
commit 848ecea184
1 changed files with 4 additions and 0 deletions
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4
include/linux/vdpa.h
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@ -218,6 +218,9 @@ struct vdpa_map_file {
* @reset: Reset device * @reset: Reset device
* @vdev: vdpa device * @vdev: vdpa device
* Returns integer: success (0) or error (< 0) * Returns integer: success (0) or error (< 0)
* @suspend: Suspend or resume the device (optional)
* @vdev: vdpa device
* Returns integer: success (0) or error (< 0)
* @get_config_size: Get the size of the configuration space includes * @get_config_size: Get the size of the configuration space includes
* fields that are conditional on feature bits. * fields that are conditional on feature bits.
* @vdev: vdpa device * @vdev: vdpa device
@ -319,6 +322,7 @@ struct vdpa_config_ops {
u8 (*get_status)(struct vdpa_device *vdev); u8 (*get_status)(struct vdpa_device *vdev);
void (*set_status)(struct vdpa_device *vdev, u8 status); void (*set_status)(struct vdpa_device *vdev, u8 status);
int (*reset)(struct vdpa_device *vdev); int (*reset)(struct vdpa_device *vdev);
int (*suspend)(struct vdpa_device *vdev);
size_t (*get_config_size)(struct vdpa_device *vdev); size_t (*get_config_size)(struct vdpa_device *vdev);
void (*get_config)(struct vdpa_device *vdev, unsigned int offset, void (*get_config)(struct vdpa_device *vdev, unsigned int offset,
void *buf, unsigned int len); void *buf, unsigned int len);