X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fmlx5%2Fmlx5_ethdev.c;h=83657f5092a619025a2e9cd8f5f617bfe498d627;hb=3669a1af893088064778f14fba0c2ca88819e095;hp=c886aefeaad576ee75174a463d312d3f55dc2a08;hpb=b233b027490b858f740a75fac19632a25d3aefdd;p=dpdk.git

diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c
index c886aefeaa..83657f5092 100644
--- a/drivers/net/mlx5/mlx5_ethdev.c
+++ b/drivers/net/mlx5/mlx5_ethdev.c
@@ -966,6 +966,33 @@ priv_link_update(struct priv *priv, int wait_to_complete)
 	return ret;
 }
 
+/**
+ * Querying the link status till it changes to the desired state.
+ * Number of query attempts is bounded by MLX5_MAX_LINK_QUERY_ATTEMPTS.
+ *
+ * @param priv
+ *   Pointer to private structure.
+ * @param status
+ *   Link desired status.
+ *
+ * @return
+ *   0 on success, negative errno value on failure.
+ */
+int
+priv_force_link_status_change(struct priv *priv, int status)
+{
+	int try = 0;
+
+	while (try < MLX5_MAX_LINK_QUERY_ATTEMPTS) {
+		priv_link_update(priv, 0);
+		if (priv->dev->data->dev_link.link_status == status)
+			return 0;
+		try++;
+		sleep(1);
+	}
+	return -EAGAIN;
+}
+
 /**
  * DPDK callback to retrieve physical link information.
  *