From: Ori Kam <orika@mellanox.com>
Date: Sun, 14 Apr 2019 07:05:21 +0000 (+0000)
Subject: net/mlx5: fix RSS validation function
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=1183f12f14becc160a084c5c081317c3927cdaa4;p=dpdk.git

net/mlx5: fix RSS validation function

The RSS validation function was missing the verifcation that
if RSS is requested on inner packet, the flow must have tunnel data.

Fixes: 23c1d42c7138 ("net/mlx5: split flow validation to dedicated function")
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.c b/drivers/net/mlx5/mlx5_flow.c
index 1c78a5f8ea..a0683ee985 100644
--- a/drivers/net/mlx5/mlx5_flow.c
+++ b/drivers/net/mlx5/mlx5_flow.c
@@ -882,6 +882,8 @@ mlx5_flow_validate_action_queue(const struct rte_flow_action *action,
  *   Pointer to the Ethernet device structure.
  * @param[in] attr
  *   Attributes of flow that includes this action.
+ * @param[in] item_flags
+ *   Items that were detected.
  * @param[out] error
  *   Pointer to error structure.
  *
@@ -893,10 +895,12 @@ mlx5_flow_validate_action_rss(const struct rte_flow_action *action,
 			      uint64_t action_flags,
 			      struct rte_eth_dev *dev,
 			      const struct rte_flow_attr *attr,
+			      uint64_t item_flags,
 			      struct rte_flow_error *error)
 {
 	struct mlx5_priv *priv = dev->data->dev_private;
 	const struct rte_flow_action_rss *rss = action->conf;
+	int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
 	unsigned int i;
 
 	if (action_flags & MLX5_FLOW_FATE_ACTIONS)
@@ -965,6 +969,11 @@ mlx5_flow_validate_action_rss(const struct rte_flow_action *action,
 					  RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL,
 					  "rss action not supported for "
 					  "egress");
+	if (rss->level > 1 &&  !tunnel)
+		return rte_flow_error_set(error, EINVAL,
+					  RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL,
+					  "inner RSS is not supported for "
+					  "non-tunnel flows");
 	return 0;
 }
 
diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h
index 622e305eaf..9f47fd4ee1 100644
--- a/drivers/net/mlx5/mlx5_flow.h
+++ b/drivers/net/mlx5/mlx5_flow.h
@@ -443,6 +443,7 @@ int mlx5_flow_validate_action_rss(const struct rte_flow_action *action,
 				  uint64_t action_flags,
 				  struct rte_eth_dev *dev,
 				  const struct rte_flow_attr *attr,
+				  uint64_t item_flags,
 				  struct rte_flow_error *error);
 int mlx5_flow_validate_attributes(struct rte_eth_dev *dev,
 				  const struct rte_flow_attr *attributes,
diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index ccb2f7593f..3862b26c5e 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -1799,7 +1799,6 @@ flow_dv_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
 	uint64_t action_flags = 0;
 	uint64_t item_flags = 0;
 	uint64_t last_item = 0;
-	int tunnel = 0;
 	uint8_t next_protocol = 0xff;
 	int actions_n = 0;
 
@@ -1809,7 +1808,7 @@ flow_dv_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
 	if (ret < 0)
 		return ret;
 	for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
-		tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
+		int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL);
 		switch (items->type) {
 		case RTE_FLOW_ITEM_TYPE_VOID:
 			break;
@@ -1981,7 +1980,8 @@ flow_dv_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
 		case RTE_FLOW_ACTION_TYPE_RSS:
 			ret = mlx5_flow_validate_action_rss(actions,
 							    action_flags, dev,
-							    attr, error);
+							    attr, item_flags,
+							    error);
 			if (ret < 0)
 				return ret;
 			action_flags |= MLX5_FLOW_ACTION_RSS;
diff --git a/drivers/net/mlx5/mlx5_flow_verbs.c b/drivers/net/mlx5/mlx5_flow_verbs.c
index 3956df1a7e..773213e147 100644
--- a/drivers/net/mlx5/mlx5_flow_verbs.c
+++ b/drivers/net/mlx5/mlx5_flow_verbs.c
@@ -1194,7 +1194,7 @@ flow_verbs_validate(struct rte_eth_dev *dev,
 		case RTE_FLOW_ACTION_TYPE_RSS:
 			ret = mlx5_flow_validate_action_rss(actions,
 							    action_flags, dev,
-							    attr,
+							    attr, item_flags,
 							    error);
 			if (ret < 0)
 				return ret;