vdpa/mlx5: fix device unplug

The vDPA PCI device unplug process should release all the private
device resources and also to unregister the device.

The device unregistration was missed what remained the device data
invalid in the rte_vhost library.

Unregister the device in unplug process via the remove operation.

Fixes: 95276abaaf0a ("vdpa/mlx5: introduce Mellanox vDPA driver")
Cc: stable@dpdk.org
Reported-by: Eli Britstein <elibr@nvidia.com>
Signed-off-by: Matan Azrad <matan@nvidia.com>
Tested-by: Eli Britstein <elibr@nvidia.com>
Acked-by: Xueming Li <xuemingl@nvidia.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>

diff --git a/drivers/vdpa/mlx5/mlx5_vdpa.c b/drivers/vdpa/mlx5/mlx5_vdpa.c
index 40db28b6db544b8fbe6a143373362f9811fa4a45..e5e03e65821b6ba19bf282f69a7e57087894f0d2 100644 (file)
--- a/drivers/vdpa/mlx5/mlx5_vdpa.c
+++ b/drivers/vdpa/mlx5/mlx5_vdpa.c
@@ -787,6 +787,8 @@ mlx5_vdpa_pci_remove(struct rte_pci_device *pci_dev)
                        mlx5_glue->dv_free_var(priv->var);
                        priv->var = NULL;
                }
+               if (priv->vdev)
+                       rte_vdpa_unregister_device(priv->vdev);
                mlx5_glue->close_device(priv->ctx);
                pthread_mutex_destroy(&priv->vq_config_lock);
                rte_free(priv);