FDMA_INTR_DB
db = lan_rd(lan966x, FDMA_INTR_DB);
lan_wr(db, lan966x, FDMA_INTR_DB);
db = spx5_rd(sparx5, FDMA_INTR_DB);
spx5_wr(db, sparx5, FDMA_INTR_DB);