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| author |   Stefano Garzarella <sgarzare@redhat.com> | 2023-04-04 15:13:18 +0200 |
|---|---|---|
| committer |   Michael S. Tsirkin <mst@redhat.com> | 2023-04-21 03:02:33 -0400 |
| commit | c618c84d4ccc6268c3da7609c7388b6cb305c639 (patch) | |
| tree | 36a3870ba50e3a0972aa8f312f91f7b30533dce0 | |
| parent | vringh: fix typos in the vringh_init_* documentation (diff) | |
| download | wireguard-linux-c618c84d4ccc6268c3da7609c7388b6cb305c639.tar.xz wireguard-linux-c618c84d4ccc6268c3da7609c7388b6cb305c639.zip | |
vdpa: add bind_mm/unbind_mm callbacks
These new optional callbacks is used to bind/unbind the device to
a specific address space so the vDPA framework can use VA when
these callbacks are implemented.
Suggested-by: Jason Wang <jasowang@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20230404131326.44403-2-sgarzare@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| -rw-r--r-- | include/linux/vdpa.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h index f2064fa2d2da..2f1af73b3a1a 100644 --- a/include/linux/vdpa.h +++ b/include/linux/vdpa.h @@ -305,6 +305,14 @@ struct vdpa_map_file { * @vdev: vdpa device * @idx: virtqueue index * Returns pointer to structure device or error (NULL) + * @bind_mm: Bind the device to a specific address space + * so the vDPA framework can use VA when this + * callback is implemented. (optional) + * @vdev: vdpa device + * @mm: address space to bind + * @unbind_mm: Unbind the device from the address space + * bound using the bind_mm callback. (optional) + * @vdev: vdpa device * @free: Free resources that belongs to vDPA (optional) * @vdev: vdpa device */ @@ -370,6 +378,8 @@ struct vdpa_config_ops { int (*set_group_asid)(struct vdpa_device *vdev, unsigned int group, unsigned int asid); struct device *(*get_vq_dma_dev)(struct vdpa_device *vdev, u16 idx); + int (*bind_mm)(struct vdpa_device *vdev, struct mm_struct *mm); + void (*unbind_mm)(struct vdpa_device *vdev); /* Free device resources */ void (*free)(struct vdpa_device *vdev); |