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| author | Eli Cohen <eli@mellanox.com> | 2020-08-04 19:20:43 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-08-06 01:39:19 +0300 |
| commit | aac50c0bd434794b9950181349099e709ca4edad (patch) | |
| tree | fa327338edce163e18e1d9da46a0d7715c00b3a9 /drivers/vhost | |
| parent | a9974489b61c09c702c85c6cba3d1a3fd1be7a15 (diff) | |
| download | linux-aac50c0bd434794b9950181349099e709ca4edad.tar.xz | |
net/vdpa: Use struct for set/get vq state
For now VQ state involves 16 bit available index value encoded in u64
variable. In the future it will be extended to contain more fields. Use
struct to contain the state, now containing only a single u16 for the
available index. In the future we can add fields to this struct.
Reviewed-by: Parav Pandit <parav@mellanox.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Eli Cohen <eli@mellanox.com>
Link: https://lore.kernel.org/r/20200804162048.22587-8-eli@mellanox.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vhost')
| -rw-r--r-- | drivers/vhost/vdpa.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c index 2d8c950ad3a8..066b165c17b1 100644 --- a/drivers/vhost/vdpa.c +++ b/drivers/vhost/vdpa.c @@ -349,6 +349,7 @@ static long vhost_vdpa_vring_ioctl(struct vhost_vdpa *v, unsigned int cmd, { struct vdpa_device *vdpa = v->vdpa; const struct vdpa_config_ops *ops = vdpa->config; + struct vdpa_vq_state vq_state; struct vdpa_callback cb; struct vhost_virtqueue *vq; struct vhost_vring_state s; @@ -374,7 +375,8 @@ static long vhost_vdpa_vring_ioctl(struct vhost_vdpa *v, unsigned int cmd, ops->set_vq_ready(vdpa, idx, s.num); return 0; case VHOST_GET_VRING_BASE: - vq->last_avail_idx = ops->get_vq_state(v->vdpa, idx); + ops->get_vq_state(v->vdpa, idx, &vq_state); + vq->last_avail_idx = vq_state.avail_index; break; case VHOST_GET_BACKEND_FEATURES: features = VHOST_VDPA_BACKEND_FEATURES; @@ -404,7 +406,8 @@ static long vhost_vdpa_vring_ioctl(struct vhost_vdpa *v, unsigned int cmd, break; case VHOST_SET_VRING_BASE: - if (ops->set_vq_state(vdpa, idx, vq->last_avail_idx)) + vq_state.avail_index = vq->last_avail_idx; + if (ops->set_vq_state(vdpa, idx, &vq_state)) r = -EINVAL; break; |