net/mlx5: activate Verbs cleanup on removal

Starting from rdma-core v19, Mellanox OFED 4.4, the Verbs resources
cleanup is properly activated in plug-out process when setting the
MLX5_DEVICE_FATAL_CLEANUP environment variable to 1.

Set the aforementioned variable to 1.

Signed-off-by: Matan Azrad <matan@mellanox.com>
Acked-by: Yongseok Koh <yskoh@mellanox.com>

diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index f0e6ed7..d081bdd 100644 (file)
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -1409,6 +1409,11 @@ rte_mlx5_pmd_init(void)
        /* Match the size of Rx completion entry to the size of a cacheline. */
        if (RTE_CACHE_LINE_SIZE == 128)
                setenv("MLX5_CQE_SIZE", "128", 0);
+       /*
+        * MLX5_DEVICE_FATAL_CLEANUP tells ibv_destroy functions to
+        * cleanup all the Verbs resources even when the device was removed.
+        */
+       setenv("MLX5_DEVICE_FATAL_CLEANUP", "1", 1);
 #ifdef RTE_LIBRTE_MLX5_DLOPEN_DEPS
        if (mlx5_glue_init())
                return;