From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= <eperezma@redhat.com>
Date: Wed, 10 Aug 2022 19:15:09 +0200
Subject: vdpa: Add suspend operation
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Patch-mainline: v6.0-rc1
Git-commit: 848ecea184e1253758423b37cbfc1ed732ccf5b4
References: jsc#PED-1549
This operation is optional: It it's not implemented, backend feature bit
will not be exposed.
Signed-off-by: Eugenio PĂ©rez <eperezma@redhat.com>
Message-Id: <20220810171512.2343333-2-eperezma@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
include/linux/vdpa.h | 4 ++++
1 file changed, 4 insertions(+)
--- a/include/linux/vdpa.h
+++ b/include/linux/vdpa.h
@@ -218,6 +218,9 @@ struct vdpa_map_file {
* @reset: Reset device
* @vdev: vdpa device
* 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
* fields that are conditional on feature bits.
* @vdev: vdpa device
@@ -319,6 +322,7 @@ 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 (*suspend)(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);