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    SubjectRe: [PATCH v6 1/4] vdpa: Add resume operation
    On Tue, Jan 03, 2023 at 11:51:05AM +0100, sebastien.boeuf@intel.com wrote:
    >From: Sebastien Boeuf <sebastien.boeuf@intel.com>
    >
    >Add a new operation to allow a vDPA device to be resumed after it has
    >been suspended. Trying to resume a device that wasn't suspended will
    >result in a no-op.
    >
    >This operation is optional. If it's not implemented, the associated
    >backend feature bit will not be exposed. And if the feature bit is not
    >exposed, invoking this operation will return an error.
    >
    >Acked-by: Jason Wang <jasowang@redhat.com>
    >Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
    >---
    > include/linux/vdpa.h | 6 +++++-
    > 1 file changed, 5 insertions(+), 1 deletion(-)

    Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>

    >
    >diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h
    >index 6d0f5e4e82c2..96d308cbf97b 100644
    >--- a/include/linux/vdpa.h
    >+++ b/include/linux/vdpa.h
    >@@ -219,7 +219,10 @@ struct vdpa_map_file {
    > * @reset: Reset device
    > * @vdev: vdpa device
    > * Returns integer: success (0) or error (< 0)
    >- * @suspend: Suspend or resume the device (optional)
    >+ * @suspend: Suspend the device (optional)
    >+ * @vdev: vdpa device
    >+ * Returns integer: success (0) or error (< 0)
    >+ * @resume: 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
    >@@ -324,6 +327,7 @@ struct vdpa_config_ops {
    > void (*set_status)(struct vdpa_device *vdev, u8 status);
    > int (*reset)(struct vdpa_device *vdev);
    > int (*suspend)(struct vdpa_device *vdev);
    >+ int (*resume)(struct vdpa_device *vdev);
    > size_t (*get_config_size)(struct vdpa_device *vdev);
    > void (*get_config)(struct vdpa_device *vdev, unsigned int offset,
    > void *buf, unsigned int len);
    >--
    >2.37.2
    >
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