diff options
Diffstat (limited to 'drivers/vdpa/mlx5/net/mlx5_vnet.c')
| -rw-r--r-- | drivers/vdpa/mlx5/net/mlx5_vnet.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c index 88dde3455bfd..b5fe6d2ad22f 100644 --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c @@ -87,6 +87,7 @@ struct mlx5_vq_restore_info { u64 device_addr; u64 driver_addr; u16 avail_index; + u16 used_index; bool ready; struct vdpa_callback cb; bool restore; @@ -121,6 +122,7 @@ struct mlx5_vdpa_virtqueue { u32 virtq_id; struct mlx5_vdpa_net *ndev; u16 avail_idx; + u16 used_idx; int fw_state; /* keep last in the struct */ @@ -804,6 +806,7 @@ static int create_virtqueue(struct mlx5_vdpa_net *ndev, struct mlx5_vdpa_virtque obj_context = MLX5_ADDR_OF(create_virtio_net_q_in, in, obj_context); MLX5_SET(virtio_net_q_object, obj_context, hw_available_index, mvq->avail_idx); + MLX5_SET(virtio_net_q_object, obj_context, hw_used_index, mvq->used_idx); MLX5_SET(virtio_net_q_object, obj_context, queue_feature_bit_mask_12_3, get_features_12_3(ndev->mvdev.actual_features)); vq_ctx = MLX5_ADDR_OF(virtio_net_q_object, obj_context, virtio_q_context); @@ -1022,6 +1025,7 @@ static int connect_qps(struct mlx5_vdpa_net *ndev, struct mlx5_vdpa_virtqueue *m struct mlx5_virtq_attr { u8 state; u16 available_index; + u16 used_index; }; static int query_virtqueue(struct mlx5_vdpa_net *ndev, struct mlx5_vdpa_virtqueue *mvq, @@ -1052,6 +1056,7 @@ static int query_virtqueue(struct mlx5_vdpa_net *ndev, struct mlx5_vdpa_virtqueu memset(attr, 0, sizeof(*attr)); attr->state = MLX5_GET(virtio_net_q_object, obj_context, state); attr->available_index = MLX5_GET(virtio_net_q_object, obj_context, hw_available_index); + attr->used_index = MLX5_GET(virtio_net_q_object, obj_context, hw_used_index); kfree(out); return 0; @@ -1535,6 +1540,16 @@ static void teardown_virtqueues(struct mlx5_vdpa_net *ndev) } } +static void clear_virtqueues(struct mlx5_vdpa_net *ndev) +{ + int i; + + for (i = ndev->mvdev.max_vqs - 1; i >= 0; i--) { + ndev->vqs[i].avail_idx = 0; + ndev->vqs[i].used_idx = 0; + } +} + /* TODO: cross-endian support */ static inline bool mlx5_vdpa_is_little_endian(struct mlx5_vdpa_dev *mvdev) { @@ -1610,6 +1625,7 @@ static int save_channel_info(struct mlx5_vdpa_net *ndev, struct mlx5_vdpa_virtqu return err; ri->avail_index = attr.available_index; + ri->used_index = attr.used_index; ri->ready = mvq->ready; ri->num_ent = mvq->num_ent; ri->desc_addr = mvq->desc_addr; @@ -1654,6 +1670,7 @@ static void restore_channels_info(struct mlx5_vdpa_net *ndev) continue; mvq->avail_idx = ri->avail_index; + mvq->used_idx = ri->used_index; mvq->ready = ri->ready; mvq->num_ent = ri->num_ent; mvq->desc_addr = ri->desc_addr; @@ -1768,6 +1785,7 @@ static void mlx5_vdpa_set_status(struct vdpa_device *vdev, u8 status) if (!status) { mlx5_vdpa_info(mvdev, "performing device reset\n"); teardown_driver(ndev); + clear_virtqueues(ndev); mlx5_vdpa_destroy_mr(&ndev->mvdev); ndev->mvdev.status = 0; ndev->mvdev.mlx_features = 0; |