menuconfig ETHERNET bool "Ethernet" default n help Select this option to enable ethernet driver and show the submenu with ethernet features. config DMA_RX_BUF_NUM int "DMA Rx Buf Num" default 10 depends on ETHERNET help Dma rx buf num ,can not be 0 . config DMA_TX_BUF_NUM int "DMA Tx Buf Num" default 10 depends on ETHERNET help Dma tx Buf num ,can not be 0. config EMAC_L2_TO_L3_RX_BUF_MODE bool "L2 To L3 RX BUF COPY MODE" default n depends on ETHERNET help Receive Buf user copy mode or pointer mode. config EMAC_TASK_PRIORITY int "EMAC_TASK_PRIORITY" default 20 depends on ETHERNET help Emac task priority ,suggest 3 ~ 23.