EDMA_REG_RFD_IDX_Q
EDMA_REG_RFD_IDX_Q(i)) & EDMA_RFD_PROD_IDX_BITS,
reg = EDMA_REG_READ(sc, EDMA_REG_RFD_IDX_Q(queue));
EDMA_REG_WRITE(sc, EDMA_REG_RFD_IDX_Q(queue), reg);
reg = EDMA_REG_READ(sc, EDMA_REG_RFD_IDX_Q(queue));