From: Ori Kam <orika@mellanox.com>
Date: Sun, 14 Apr 2019 20:17:11 +0000 (+0000)
Subject: net/mlx5: fix release of jump to queue action
X-Git-Url: http://git.droids-corp.org/?p=dpdk.git;a=commitdiff_plain;h=3eb00443107296ce156a043a8f1865b0b0b56e1d

net/mlx5: fix release of jump to queue action

Currently the allocation of the jump to QP is done in flow apply,
this results in memory leak.

This patch fixes this issue by moving the allocation and release of the
jump to QP action to the responsibility of the hrxq.

Fixes: cbb66daa3c85 ("net/mlx5: prepare Direct Verbs for Direct Rule")
Cc: stable@dpdk.org

Signed-off-by: Ori Kam <orika@mellanox.com>
Acked-by: Yongseok Koh <yskoh@mellanox.com>
---

diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 5127e40a0b..427e65716a 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -3650,9 +3650,7 @@ flow_dv_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
 					 "cannot get drop hash queue");
 				goto error;
 			}
-			dv->actions[n++] =
-				mlx5_glue->dv_create_flow_action_dest_ibv_qp
-				(dv->hrxq->qp);
+			dv->actions[n++] = dv->hrxq->action;
 		} else if (flow->actions &
 			   (MLX5_FLOW_ACTION_QUEUE | MLX5_FLOW_ACTION_RSS)) {
 			struct mlx5_hrxq *hrxq;
@@ -3677,9 +3675,7 @@ flow_dv_apply(struct rte_eth_dev *dev, struct rte_flow *flow,
 				goto error;
 			}
 			dv->hrxq = hrxq;
-			dv->actions[n++] =
-				mlx5_glue->dv_create_flow_action_dest_ibv_qp
-				(dv->hrxq->qp);
+			dv->actions[n++] = dv->hrxq->action;
 		}
 		dv->flow =
 			mlx5_glue->dv_create_flow(dv->matcher->matcher_object,
diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index 8a84b0a1b5..836bec95e5 100644
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -1864,6 +1864,13 @@ mlx5_hrxq_new(struct rte_eth_dev *dev,
 	hrxq->rss_key_len = rss_key_len;
 	hrxq->hash_fields = hash_fields;
 	memcpy(hrxq->rss_key, rss_key, rss_key_len);
+#ifdef HAVE_IBV_FLOW_DV_SUPPORT
+	hrxq->action = mlx5_glue->dv_create_flow_action_dest_ibv_qp(hrxq->qp);
+	if (!hrxq->action) {
+		rte_errno = errno;
+		goto error;
+	}
+#endif
 	rte_atomic32_inc(&hrxq->refcnt);
 	LIST_INSERT_HEAD(&priv->hrxqs, hrxq, next);
 	return hrxq;
@@ -1941,6 +1948,9 @@ mlx5_hrxq_release(struct rte_eth_dev *dev, struct mlx5_hrxq *hrxq)
 	if (rte_atomic32_dec_and_test(&hrxq->refcnt)) {
 		claim_zero(mlx5_glue->destroy_qp(hrxq->qp));
 		mlx5_ind_table_ibv_release(dev, hrxq->ind_table);
+#ifdef HAVE_IBV_FLOW_DV_SUPPORT
+		mlx5_glue->destroy_flow_action(hrxq->action);
+#endif
 		LIST_REMOVE(hrxq, next);
 		rte_free(hrxq);
 		return 0;
@@ -2178,6 +2188,13 @@ mlx5_hrxq_drop_new(struct rte_eth_dev *dev)
 	}
 	hrxq->ind_table = ind_tbl;
 	hrxq->qp = qp;
+#ifdef HAVE_IBV_FLOW_DV_SUPPORT
+	hrxq->action = mlx5_glue->dv_create_flow_action_dest_ibv_qp(hrxq->qp);
+	if (!hrxq->action) {
+		rte_errno = errno;
+		goto error;
+	}
+#endif
 	priv->drop_queue.hrxq = hrxq;
 	rte_atomic32_set(&hrxq->refcnt, 1);
 	return hrxq;
@@ -2202,6 +2219,9 @@ mlx5_hrxq_drop_release(struct rte_eth_dev *dev)
 	if (rte_atomic32_dec_and_test(&hrxq->refcnt)) {
 		claim_zero(mlx5_glue->destroy_qp(hrxq->qp));
 		mlx5_ind_table_ibv_drop_release(dev);
+#ifdef HAVE_IBV_FLOW_DV_SUPPORT
+		mlx5_glue->destroy_flow_action(hrxq->action);
+#endif
 		rte_free(hrxq);
 		priv->drop_queue.hrxq = NULL;
 	}
diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h
index 5d49892429..4339aaf338 100644
--- a/drivers/net/mlx5/mlx5_rxtx.h
+++ b/drivers/net/mlx5/mlx5_rxtx.h
@@ -166,6 +166,9 @@ struct mlx5_hrxq {
 	rte_atomic32_t refcnt; /* Reference counter. */
 	struct mlx5_ind_table_ibv *ind_table; /* Indirection table. */
 	struct ibv_qp *qp; /* Verbs queue pair. */
+#ifdef HAVE_IBV_FLOW_DV_SUPPORT
+	void *action; /* DV QP action pointer. */
+#endif
 	uint64_t hash_fields; /* Verbs Hash fields. */
 	uint32_t rss_key_len; /* Hash key length in bytes. */
 	uint8_t rss_key[]; /* Hash key. */