/* Maximum number of buffers, used for RX packet placement */
#define ETH_RX_MAX_BUFF_PER_PKT 5
+/* Minimum number of free BDs in RX ring, that guarantee receiving of at least
+ * one RX packet.
+ */
+#define ETH_RX_BD_THRESHOLD 12
/* num of MAC/VLAN filters */
#define ETH_NUM_MAC_FILTERS 512