net/mlx4: implement isolated mode from flow API

[dpdk.git] / drivers / net / mlx4 / mlx4_flow.c

diff --git a/drivers/net/mlx4/mlx4_flow.c b/drivers/net/mlx4/mlx4_flow.c
index edfac03..5ad50bd 100644 (file)
--- a/drivers/net/mlx4/mlx4_flow.c
+++ b/drivers/net/mlx4/mlx4_flow.c
@@ -956,6 +956,43 @@ mlx4_flow_create(struct rte_eth_dev *dev,
        return flow;
 }
 
+/**
+ * @see rte_flow_isolate()
+ *
+ * Must be done before calling dev_configure().
+ *
+ * @param dev
+ *   Pointer to the ethernet device structure.
+ * @param enable
+ *   Nonzero to enter isolated mode, attempt to leave it otherwise.
+ * @param[out] error
+ *   Perform verbose error reporting if not NULL. PMDs initialize this
+ *   structure in case of error only.
+ *
+ * @return
+ *   0 on success, a negative value on error.
+ */
+int
+mlx4_flow_isolate(struct rte_eth_dev *dev,
+                 int enable,
+                 struct rte_flow_error *error)
+{
+       struct priv *priv = dev->data->dev_private;
+
+       priv_lock(priv);
+       if (priv->rxqs) {
+               rte_flow_error_set(error, ENOTSUP,
+                                  RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
+                                  NULL, "isolated mode must be set"
+                                  " before configuring the device");
+               priv_unlock(priv);
+               return -rte_errno;
+       }
+       priv->isolated = !!enable;
+       priv_unlock(priv);
+       return 0;
+}
+
 /**
  * Destroy a flow.
  *