+/* Threshold for a queue to *Enter* Congestion state.
+ * It is set to 32KB
+ */
+#define CONG_ENTER_TX_THRESHOLD (32 * 1024)
+
+/* Threshold for a queue to *Exit* Congestion state.
+ */
+#define CONG_EXIT_TX_THRESHOLD (24 * 1024)
+
+/* RX queue tail drop threshold
+ * currently considering 32 KB packets
+ */
+#define CONG_THRESHOLD_RX_Q (32 * 1024)
+
+/* Size of the input SMMU mapped memory required by MC */
+#define DIST_PARAM_IOVA_SIZE 256
+
+/* Enable TX Congestion control support
+ * default is disable
+ */
+#define DPAA2_TX_CGR_SUPPORT 0x01
+
+/* Disable RX tail drop, default is enable */
+#define DPAA2_RX_TAILDROP_OFF 0x04
+