From: David Marchand <david.marchand@6wind.com>
Date: Wed, 30 May 2018 14:42:53 +0000 (+0200)
Subject: net/mlx5: register memory callback only when probing
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=44b1d513d58db0ac54e67715470f9a50643a593b;p=dpdk.git

net/mlx5: register memory callback only when probing

The callback should be invoked only for memory that has been registered
in a device, hence, no need to track cleanup events if no device is
present.

Bugzilla ID: 56
Fixes: 974f1e7ef146 ("net/mlx5: add new memory region support")

Signed-off-by: David Marchand <david.marchand@6wind.com>
Acked-by: Yongseok Koh <yskoh@mellanox.com>
Tested-by: Ferruh Yigit <ferruh.yigit@intel.com>
---

diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index 3ef02e2d20..c933e274fe 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -137,6 +137,8 @@ mlx5_prepare_shared_data(void)
 			LIST_INIT(&mlx5_shared_data->mem_event_cb_list);
 			rte_rwlock_init(&mlx5_shared_data->mem_event_rwlock);
 		}
+		rte_mem_event_callback_register("MLX5_MEM_EVENT_CB",
+						mlx5_mr_mem_event_cb, NULL);
 	}
 	rte_spinlock_unlock(&mlx5_shared_data_lock);
 }
@@ -1473,8 +1475,6 @@ rte_mlx5_pmd_init(void)
 	}
 	mlx5_glue->fork_init();
 	rte_pci_register(&mlx5_driver);
-	rte_mem_event_callback_register("MLX5_MEM_EVENT_CB",
-					mlx5_mr_mem_event_cb, NULL);
 }
 
 RTE_PMD_EXPORT_NAME(net_mlx5, __COUNTER__);