+/**
+ * This function is used to parse rss queue index, total queue number and
+ * hash functions, If the purpose of this configuration is for queue region
+ * configuration, it will set queue_region_conf flag to TRUE, else to FALSE.
+ * In queue region configuration, it also need to parse hardware flowtype
+ * and user_priority from configuration, it will also cheeck the validity
+ * of these parameters. For example, The queue region sizes should
+ * be any of the following values: 1, 2, 4, 8, 16, 32, 64, the
+ * hw_flowtype or PCTYPE max index should be 63, the user priority
+ * max index should be 7, and so on. And also, queue index should be
+ * continuous sequence and queue region index should be part of rss
+ * queue index for this port.
+ */