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From: Jiawei Wang <jiaweiw@nvidia.com>
To: jiaweiw@nvidia.com
Cc: stable@dpdk.org
Subject: [dpdk-stable] [PATCH] net/mlx5: fix count actions query in sample flow
Date: Tue, 26 Jan 2021 17:33:37 +0200
Message-ID: <1611675217-148520-1-git-send-email-jiaweiw@nvidia.com> (raw)

If the count action was presented in sample actions list, MLX5 PMD
created the counter resource and saved the index of counter in the
sample resource only, the counter index of flow was not updated.

This patch removes the counter index in the sampler resource and
saves it into the flow, and adds the checking to make sure only one
count be created once per flow, it's used for all sample sub flows.

Fixes: 0756228b2704 ("net/mlx5: update translate function for sample action")
Cc: stable@dpdk.org

Signed-off-by: Jiawei Wang <jiaweiw@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
---
 drivers/net/mlx5/mlx5_flow.h    |  1 -
 drivers/net/mlx5/mlx5_flow_dv.c | 62 +++++++++++++++++++++++++----------------
 2 files changed, 38 insertions(+), 25 deletions(-)

diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h
index 2178a04..389e2c2 100644
--- a/drivers/net/mlx5/mlx5_flow.h
+++ b/drivers/net/mlx5/mlx5_flow.h
@@ -578,7 +578,6 @@ struct mlx5_flow_sub_actions_list {
 struct mlx5_flow_sub_actions_idx {
 	uint32_t rix_hrxq; /**< Hash Rx queue object index. */
 	uint32_t rix_tag; /**< Index to the tag action. */
-	uint32_t cnt;
 	uint32_t rix_port_id_action; /**< Index to port ID action resource. */
 	uint32_t rix_encap_decap; /**< Index to encap/decap resource. */
 	uint32_t rix_jump; /**< Index to the jump action resource. */
diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 1a0c0be..7c04fdb 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -2612,6 +2612,8 @@ struct field_modify_info modify_tcp[] = {
  *
  * @param[in] dev
  *   Pointer to rte_eth_dev structure.
+ * @param[in] action_flags
+ *   Holds the actions detected until now.
  * @param[out] error
  *   Pointer to error structure.
  *
@@ -2620,10 +2622,15 @@ struct field_modify_info modify_tcp[] = {
  */
 static int
 flow_dv_validate_action_count(struct rte_eth_dev *dev,
+			      uint64_t action_flags,
 			      struct rte_flow_error *error)
 {
 	struct mlx5_priv *priv = dev->data->dev_private;
 
+	if (action_flags & MLX5_FLOW_ACTION_COUNT)
+		return rte_flow_error_set(error, EINVAL,
+					  RTE_FLOW_ERROR_TYPE_ACTION, NULL,
+					  "duplicate count actions set");
 	if (!priv->config.devx)
 		goto notsup_err;
 #ifdef HAVE_IBV_FLOW_DEVX_COUNTERS
@@ -4395,7 +4402,7 @@ struct mlx5_hlist_entry *
 /**
  * Validate the sample action.
  *
- * @param[in] action_flags
+ * @param[in, out] action_flags
  *   Holds the actions detected until now.
  * @param[in] action
  *   Pointer to the sample action.
@@ -4416,7 +4423,7 @@ struct mlx5_hlist_entry *
  *   0 on success, a negative errno value otherwise and rte_errno is set.
  */
 static int
-flow_dv_validate_action_sample(uint64_t action_flags,
+flow_dv_validate_action_sample(uint64_t *action_flags,
 			       const struct rte_flow_action *action,
 			       struct rte_eth_dev *dev,
 			       const struct rte_flow_attr *attr,
@@ -4447,17 +4454,17 @@ struct mlx5_hlist_entry *
 					  RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 					  NULL,
 					  "sample action not supported");
-	if (action_flags & MLX5_FLOW_ACTION_SAMPLE)
+	if (*action_flags & MLX5_FLOW_ACTION_SAMPLE)
 		return rte_flow_error_set(error, EINVAL,
 					  RTE_FLOW_ERROR_TYPE_ACTION, NULL,
 					  "Multiple sample actions not "
 					  "supported");
-	if (action_flags & MLX5_FLOW_ACTION_METER)
+	if (*action_flags & MLX5_FLOW_ACTION_METER)
 		return rte_flow_error_set(error, EINVAL,
 					  RTE_FLOW_ERROR_TYPE_ACTION, action,
 					  "wrong action order, meter should "
 					  "be after sample action");
-	if (action_flags & MLX5_FLOW_ACTION_JUMP)
+	if (*action_flags & MLX5_FLOW_ACTION_JUMP)
 		return rte_flow_error_set(error, EINVAL,
 					  RTE_FLOW_ERROR_TYPE_ACTION, action,
 					  "wrong action order, jump should "
@@ -4517,10 +4524,18 @@ struct mlx5_hlist_entry *
 			++actions_n;
 			break;
 		case RTE_FLOW_ACTION_TYPE_COUNT:
-			ret = flow_dv_validate_action_count(dev, error);
+			if (*action_flags & MLX5_FLOW_ACTION_COUNT)
+				return rte_flow_error_set(error, EINVAL,
+						RTE_FLOW_ERROR_TYPE_ACTION,
+						action,
+						"duplicate count action set");
+			ret = flow_dv_validate_action_count(dev,
+							    sub_action_flags,
+							    error);
 			if (ret < 0)
 				return ret;
 			sub_action_flags |= MLX5_FLOW_ACTION_COUNT;
+			*action_flags |= MLX5_FLOW_ACTION_COUNT;
 			++actions_n;
 			break;
 		case RTE_FLOW_ACTION_TYPE_PORT_ID:
@@ -5848,7 +5863,8 @@ struct mlx5_hlist_entry *
 			++actions_n;
 			break;
 		case RTE_FLOW_ACTION_TYPE_COUNT:
-			ret = flow_dv_validate_action_count(dev, error);
+			ret = flow_dv_validate_action_count(dev, action_flags,
+							    error);
 			if (ret < 0)
 				return ret;
 			action_flags |= MLX5_FLOW_ACTION_COUNT;
@@ -6148,7 +6164,7 @@ struct mlx5_hlist_entry *
 			rw_act_num += MLX5_ACT_NUM_SET_DSCP;
 			break;
 		case RTE_FLOW_ACTION_TYPE_SAMPLE:
-			ret = flow_dv_validate_action_sample(action_flags,
+			ret = flow_dv_validate_action_sample(&action_flags,
 							     actions, dev,
 							     attr, item_flags,
 							     rss, &sample_rss,
@@ -9064,10 +9080,6 @@ struct mlx5_hlist_entry *
 		flow_dv_tag_release(dev, act_res->rix_tag);
 		act_res->rix_tag = 0;
 	}
-	if (act_res->cnt) {
-		flow_dv_counter_free(dev, act_res->cnt);
-		act_res->cnt = 0;
-	}
 	if (act_res->rix_jump) {
 		flow_dv_jump_tbl_resource_release(dev, act_res->rix_jump);
 		act_res->rix_jump = 0;
@@ -9468,6 +9480,7 @@ struct mlx5_cache_entry *
 	struct mlx5_flow_sub_actions_list *sample_act;
 	struct mlx5_flow_sub_actions_idx *sample_idx;
 	struct mlx5_flow_workspace *wks = mlx5_flow_get_thread_workspace();
+	struct rte_flow *flow = dev_flow->flow;
 	struct mlx5_flow_rss_desc *rss_desc;
 	uint64_t action_flags = 0;
 
@@ -9578,21 +9591,22 @@ struct mlx5_cache_entry *
 		}
 		case RTE_FLOW_ACTION_TYPE_COUNT:
 		{
-			uint32_t counter;
-
-			counter = flow_dv_translate_create_counter(dev,
-					dev_flow, sub_actions->conf, 0);
-			if (!counter)
-				return rte_flow_error_set
+			if (!flow->counter) {
+				flow->counter =
+					flow_dv_translate_create_counter(dev,
+						dev_flow, sub_actions->conf,
+						0);
+				if (!flow->counter)
+					return rte_flow_error_set
 						(error, rte_errno,
-						 RTE_FLOW_ERROR_TYPE_ACTION,
-						 NULL,
-						 "cannot create counter"
-						 " object.");
-			sample_idx->cnt = counter;
+						RTE_FLOW_ERROR_TYPE_ACTION,
+						NULL,
+						"cannot create counter"
+						" object.");
+			}
 			sample_act->dr_cnt_action =
 				  (flow_dv_counter_get_by_idx(dev,
-				  counter, NULL))->action;
+				  flow->counter, NULL))->action;
 			sample_actions[sample_act->actions_num++] =
 						sample_act->dr_cnt_action;
 			action_flags |= MLX5_FLOW_ACTION_COUNT;
-- 
1.8.3.1


             reply	other threads:[~2021-01-26 15:33 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-26 15:33 Jiawei Wang [this message]
  -- strict thread matches above, loose matches on Subject: below --
2021-01-26 15:37 Jiawei Wang
2021-01-26  4:29 Jiawei Wang

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