mlx5: disable useless flows in promiscuous mode

[dpdk.git] / drivers / net / mlx5 / mlx5_rxq.c

diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index d46fc13..bdd5429 100644 (file)
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -538,6 +538,35 @@ priv_destroy_hash_rxqs(struct priv *priv)
        priv->ind_tables = NULL;
 }
 
+/**
+ * Check whether a given flow type is allowed.
+ *
+ * @param priv
+ *   Pointer to private structure.
+ * @param type
+ *   Flow type to check.
+ *
+ * @return
+ *   Nonzero if the given flow type is allowed.
+ */
+int
+priv_allow_flow_type(struct priv *priv, enum hash_rxq_flow_type type)
+{
+       /* Only FLOW_TYPE_PROMISC is allowed when promiscuous mode
+        * has been requested. */
+       if (priv->promisc_req)
+               return (type == HASH_RXQ_FLOW_TYPE_PROMISC);
+       switch (type) {
+       case HASH_RXQ_FLOW_TYPE_PROMISC:
+               return !!priv->promisc_req;
+       case HASH_RXQ_FLOW_TYPE_ALLMULTI:
+               return !!priv->allmulti_req;
+       case HASH_RXQ_FLOW_TYPE_MAC:
+               return 1;
+       }
+       return 0;
+}
+
 /**
  * Allocate RX queue elements with scattered packets support.
  *