Commit 3ace88bd authored by Gautam Dawar's avatar Gautam Dawar Committed by Michael S. Tsirkin

vhost-vdpa: introduce uAPI to get the number of virtqueue groups

Follows the vDPA support for multiple address spaces, this patch
introduce uAPI for the userspace to know the number of virtqueue
groups supported by the vDPA device.
Signed-off-by: default avatarJason Wang <jasowang@redhat.com>
Signed-off-by: default avatarGautam Dawar <gdawar@xilinx.com>
Message-Id: <20220330180436.24644-12-gdawar@xilinx.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent 3d569879
...@@ -559,6 +559,10 @@ static long vhost_vdpa_unlocked_ioctl(struct file *filep, ...@@ -559,6 +559,10 @@ static long vhost_vdpa_unlocked_ioctl(struct file *filep,
case VHOST_VDPA_GET_VRING_NUM: case VHOST_VDPA_GET_VRING_NUM:
r = vhost_vdpa_get_vring_num(v, argp); r = vhost_vdpa_get_vring_num(v, argp);
break; break;
case VHOST_VDPA_GET_GROUP_NUM:
r = copy_to_user(argp, &v->vdpa->ngroups,
sizeof(v->vdpa->ngroups));
break;
case VHOST_SET_LOG_BASE: case VHOST_SET_LOG_BASE:
case VHOST_SET_LOG_FD: case VHOST_SET_LOG_FD:
r = -ENOIOCTLCMD; r = -ENOIOCTLCMD;
......
...@@ -145,11 +145,13 @@ ...@@ -145,11 +145,13 @@
/* Get the valid iova range */ /* Get the valid iova range */
#define VHOST_VDPA_GET_IOVA_RANGE _IOR(VHOST_VIRTIO, 0x78, \ #define VHOST_VDPA_GET_IOVA_RANGE _IOR(VHOST_VIRTIO, 0x78, \
struct vhost_vdpa_iova_range) struct vhost_vdpa_iova_range)
/* Get the config size */ /* Get the config size */
#define VHOST_VDPA_GET_CONFIG_SIZE _IOR(VHOST_VIRTIO, 0x79, __u32) #define VHOST_VDPA_GET_CONFIG_SIZE _IOR(VHOST_VIRTIO, 0x79, __u32)
/* Get the count of all virtqueues */ /* Get the count of all virtqueues */
#define VHOST_VDPA_GET_VQS_COUNT _IOR(VHOST_VIRTIO, 0x80, __u32) #define VHOST_VDPA_GET_VQS_COUNT _IOR(VHOST_VIRTIO, 0x80, __u32)
/* Get the number of virtqueue groups. */
#define VHOST_VDPA_GET_GROUP_NUM _IOR(VHOST_VIRTIO, 0x81, __u32)
#endif #endif
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment