diff options
| author | Eli Cohen <eli@mellanox.com> | 2020-08-04 18:20:44 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-08-06 01:00:23 +0200 |
| commit | 23750e39d57433d0e3d89658f0bc448f9c42ff49 (patch) | |
| tree | 9f377ffa73d12ea6d7b8c8a9196f5250e923eb2b /drivers/vdpa | |
| parent | net/vdpa: Use struct for set/get vq state (diff) | |
| download | linux-23750e39d57433d0e3d89658f0bc448f9c42ff49.tar.xz linux-23750e39d57433d0e3d89658f0bc448f9c42ff49.zip | |
vdpa: Modify get_vq_state() to return error code
Modify get_vq_state() so it returns an error code. In case of hardware
acceleration, the available index may be retrieved from the device, an
operation that can possibly fail.
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Eli Cohen <eli@mellanox.com>
Link: https://lore.kernel.org/r/20200804162048.22587-9-eli@mellanox.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'drivers/vdpa')
| -rw-r--r-- | drivers/vdpa/ifcvf/ifcvf_main.c | 5 | ||||
| -rw-r--r-- | drivers/vdpa/vdpa_sim/vdpa_sim.c | 5 |
2 files changed, 6 insertions, 4 deletions
diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c index dc311e972b9e..076d7ac5e723 100644 --- a/drivers/vdpa/ifcvf/ifcvf_main.c +++ b/drivers/vdpa/ifcvf/ifcvf_main.c @@ -237,12 +237,13 @@ static u16 ifcvf_vdpa_get_vq_num_max(struct vdpa_device *vdpa_dev) return IFCVF_QUEUE_MAX; } -static void ifcvf_vdpa_get_vq_state(struct vdpa_device *vdpa_dev, u16 qid, - struct vdpa_vq_state *state) +static int ifcvf_vdpa_get_vq_state(struct vdpa_device *vdpa_dev, u16 qid, + struct vdpa_vq_state *state) { struct ifcvf_hw *vf = vdpa_to_vf(vdpa_dev); state->avail_index = ifcvf_get_vq_state(vf, qid); + return 0; } static int ifcvf_vdpa_set_vq_state(struct vdpa_device *vdpa_dev, u16 qid, diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c index c93126ad09d1..df3224b138ee 100644 --- a/drivers/vdpa/vdpa_sim/vdpa_sim.c +++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c @@ -464,14 +464,15 @@ static int vdpasim_set_vq_state(struct vdpa_device *vdpa, u16 idx, return 0; } -static void vdpasim_get_vq_state(struct vdpa_device *vdpa, u16 idx, - struct vdpa_vq_state *state) +static int vdpasim_get_vq_state(struct vdpa_device *vdpa, u16 idx, + struct vdpa_vq_state *state) { struct vdpasim *vdpasim = vdpa_to_sim(vdpa); struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx]; struct vringh *vrh = &vq->vring; state->avail_index = vrh->last_avail_idx; + return 0; } static u32 vdpasim_get_vq_align(struct vdpa_device *vdpa) |