diff options
| author | Zhu Lingshan <lingshan.zhu@intel.com> | 2024-02-03 00:38:56 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2024-03-19 02:45:49 -0400 |
| commit | 1496c47065f9f8413296780c63374daee9bdae20 (patch) | |
| tree | 61e2d96bc107449dd75ae7c63d16dbb97619ea09 /include/uapi | |
| parent | ba6faaa68ddab7961fc1be10193ee731c6e2a1f5 (diff) | |
vhost-vdpa: uapi to support reporting per vq size
The size of a virtqueue is a per vq configuration.
This commit introduce a new ioctl uAPI to support this flexibility.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240202163905.8834-2-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/vhost.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h index 649560c685f1..bea697390613 100644 --- a/include/uapi/linux/vhost.h +++ b/include/uapi/linux/vhost.h @@ -227,4 +227,11 @@ */ #define VHOST_VDPA_GET_VRING_DESC_GROUP _IOWR(VHOST_VIRTIO, 0x7F, \ struct vhost_vring_state) + +/* Get the queue size of a specific virtqueue. + * userspace set the vring index in vhost_vring_state.index + * kernel set the queue size in vhost_vring_state.num + */ +#define VHOST_VDPA_GET_VRING_SIZE _IOWR(VHOST_VIRTIO, 0x80, \ + struct vhost_vring_state) #endif |