METH_RX_BUFF_SIZE
priv->rx_skbs[i] = alloc_skb(METH_RX_BUFF_SIZE, 0);
METH_RX_BUFF_SIZE, DMA_FROM_DEVICE);
METH_RX_BUFF_SIZE, DMA_FROM_DEVICE);
METH_RX_BUFF_SIZE, DMA_FROM_DEVICE);
skb = alloc_skb(METH_RX_BUFF_SIZE, GFP_ATOMIC);
METH_RX_BUFF_SIZE, DMA_FROM_DEVICE);
char buf[METH_RX_BUFF_SIZE-sizeof(rx_status_vector)-3*sizeof(u64)-sizeof(u16)];/* data */