From c5a49265fc232ac382d4609b264b57b3d65dbbe3 Mon Sep 17 00:00:00 2001 From: Bing Zhao Date: Wed, 5 May 2021 15:23:21 +0300 Subject: [PATCH] net/mlx5: add ASO connection tracking destroy 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 Acked-by: Viacheslav Ovsiienko --- drivers/net/mlx5/mlx5_flow_dv.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c index f877e82e18..672509ff55 100644 --- a/drivers/net/mlx5/mlx5_flow_dv.c +++ b/drivers/net/mlx5/mlx5_flow_dv.c @@ -11530,9 +11530,15 @@ flow_dv_aso_ct_release(struct rte_eth_dev *dev, uint32_t idx) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_aso_ct_pools_mng *mng = priv->sh->ct_mng; + uint32_t ret; struct mlx5_aso_ct_action *ct = flow_aso_ct_get_by_idx(dev, idx); - uint32_t ret = __atomic_sub_fetch(&ct->refcnt, 1, __ATOMIC_RELAXED); + enum mlx5_aso_ct_state state = + __atomic_load_n(&ct->state, __ATOMIC_RELAXED); + /* Cannot release when CT is in the ASO SQ. */ + if (state == ASO_CONNTRACK_WAIT || state == ASO_CONNTRACK_QUERY) + return -1; + ret = __atomic_sub_fetch(&ct->refcnt, 1, __ATOMIC_RELAXED); if (!ret) { if (ct->dr_action_orig) { #ifdef HAVE_MLX5_DR_ACTION_ASO_CT @@ -11548,6 +11554,8 @@ 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. */ + MLX5_ASO_CT_UPDATE_STATE(ct, ASO_CONNTRACK_FREE); rte_spinlock_lock(&mng->ct_sl); LIST_INSERT_HEAD(&mng->free_cts, ct, next); rte_spinlock_unlock(&mng->ct_sl); @@ -14070,6 +14078,12 @@ 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, -- 2.20.1