FEC_RX_BUFFER_SIZE
bd->status = FEC_RX_BUFFER_SIZE;
FEC_RX_BUFFER_SIZE, DMA_FROM_DEVICE);
skb = netdev_alloc_skb(dev, FEC_RX_BUFFER_SIZE);
memset(skb->data, 0, FEC_RX_BUFFER_SIZE);
skb = netdev_alloc_skb(dev, FEC_RX_BUFFER_SIZE);
rcntrl = FEC_RX_BUFFER_SIZE << 16; /* max frame length */
priv->rx_dmatsk = bcom_fec_rx_init(FEC_RX_NUM_BD, rx_fifo, FEC_RX_BUFFER_SIZE);