vdpa/mlx5: adjust virtio queue protection domain

[dpdk.git] / drivers / vdpa / mlx5 / mlx5_vdpa.c

diff --git a/drivers/vdpa/mlx5/mlx5_vdpa.c b/drivers/vdpa/mlx5/mlx5_vdpa.c
index a80e3f4..94cac66 100644 (file)
--- a/drivers/vdpa/mlx5/mlx5_vdpa.c
+++ b/drivers/vdpa/mlx5/mlx5_vdpa.c
@@ -191,6 +191,37 @@ mlx5_vdpa_features_set(int vid)
        return 0;
 }
 
+static int
+mlx5_vdpa_pd_create(struct mlx5_vdpa_priv *priv)
+{
+#ifdef HAVE_IBV_FLOW_DV_SUPPORT
+       priv->pd = mlx5_glue->alloc_pd(priv->ctx);
+       if (priv->pd == NULL) {
+               DRV_LOG(ERR, "Failed to allocate PD.");
+               return errno ? -errno : -ENOMEM;
+       }
+       struct mlx5dv_obj obj;
+       struct mlx5dv_pd pd_info;
+       int ret = 0;
+
+       obj.pd.in = priv->pd;
+       obj.pd.out = &pd_info;
+       ret = mlx5_glue->dv_init_obj(&obj, MLX5DV_OBJ_PD);
+       if (ret) {
+               DRV_LOG(ERR, "Fail to get PD object info.");
+               mlx5_glue->dealloc_pd(priv->pd);
+               priv->pd = NULL;
+               return -errno;
+       }
+       priv->pdn = pd_info.pdn;
+       return 0;
+#else
+       (void)priv;
+       DRV_LOG(ERR, "Cannot get pdn - no DV support.");
+       return -ENOTSUP;
+#endif /* HAVE_IBV_FLOW_DV_SUPPORT */
+}
+
 static int
 mlx5_vdpa_dev_close(int vid)
 {
@@ -209,6 +240,10 @@ mlx5_vdpa_dev_close(int vid)
        mlx5_vdpa_virtqs_release(priv);
        mlx5_vdpa_event_qp_global_release(priv);
        mlx5_vdpa_mem_dereg(priv);
+       if (priv->pd) {
+               claim_zero(mlx5_glue->dealloc_pd(priv->pd));
+               priv->pd = NULL;
+       }
        priv->configured = 0;
        priv->vid = 0;
        DRV_LOG(INFO, "vDPA device %d was closed.", vid);
@@ -230,7 +265,8 @@ mlx5_vdpa_dev_config(int vid)
                return -1;
        }
        priv->vid = vid;
-       if (mlx5_vdpa_mem_register(priv) || mlx5_vdpa_direct_db_prepare(priv) ||
+       if (mlx5_vdpa_pd_create(priv) || mlx5_vdpa_mem_register(priv) ||
+           mlx5_vdpa_direct_db_prepare(priv) ||
            mlx5_vdpa_virtqs_prepare(priv) || mlx5_vdpa_steer_setup(priv) ||
            mlx5_vdpa_cqe_event_setup(priv)) {
                mlx5_vdpa_dev_close(vid);