[dpdk-dev] [PATCH 10/17] net/mlx5: add ASO CT destroy handling

[Bing Zhao]

When trying to destroy an ASO connection tracking context, the DR
action created on this context should also be destroyed. Before
inserting the related software object into the management free list,
the reference count should be checked.

Right now, the context object will not be freed to the system and
will be reused directly from the free list.

Signed-off-by: Bing Zhao <bingz at nvidia.com>
---
 drivers/net/mlx5/mlx5_flow_dv.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 9093142..f4fa3a0 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -11153,6 +11153,9 @@ flow_dv_aso_ct_release(struct rte_eth_dev *dev, uint32_t idx)
 #endif
 			ct->dr_action_rply = NULL;
 		}
+		/* Clear the state to free, no need in 1st allocation. */
+		__atomic_store_n(&ct->state, ASO_CONNTRACK_FREE,
+				 __ATOMIC_RELAXED);
 		rte_spinlock_lock(&mng->ct_sl);
 		LIST_INSERT_HEAD(&mng->free_cts, ct, next);
 		rte_spinlock_unlock(&mng->ct_sl);
@@ -13638,6 +13641,12 @@ flow_dv_action_destroy(struct rte_eth_dev *dev,
 			DRV_LOG(DEBUG, "Indirect age action %" PRIu32 " was"
 				" released with references %d.", idx, ret);
 		return 0;
+	case MLX5_INDIRECT_ACTION_TYPE_CT:
+		ret = flow_dv_aso_ct_release(dev, idx);
+		if (ret)
+			DRV_LOG(DEBUG, "Connection tracking object %u still "
+				"has references %d.", idx, ret);
+		return 0;
 	default:
 		return rte_flow_error_set(error, ENOTSUP,
 					  RTE_FLOW_ERROR_TYPE_ACTION,
-- 
2.5.5