161a506f00
1. In original driver, the stack size for emac driver task "emacT" is only 2048 Bytes, which also can not be changed by user. 2. Each time when invoking "emac_start" function, it will reset emac registers, the driver should reconfig some important registers again.
60 lines
1.8 KiB
Text
60 lines
1.8 KiB
Text
menu Ethernet
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config DMA_RX_BUF_NUM
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int "Number of DMA RX buffers"
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range 3 20
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default 10
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help
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Number of DMA receive buffers. Each buffer is 1600 bytes.
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Buffers are allocated statically.
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Larger number of buffers increases throughput.
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If enable flow ctrl, the num must be above 9 .
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config DMA_TX_BUF_NUM
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int "Number of DMA TX buffers"
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range 3 20
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default 10
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help
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Number of DMA transmit buffers. Each buffer is 1600 bytes.
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Buffers are allocated statically.
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Larger number of buffers increases throughput.
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config EMAC_L2_TO_L3_RX_BUF_MODE
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bool "Enable copy between Layer2 and Layer3"
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default n
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help
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If this options is selected, a copy of each received buffer will be created when
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passing it from the Ethernet MAC (L2) to the IP stack (L3). Otherwise, IP stack
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will receive pointers to the DMA buffers used by Ethernet MAC.
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When Ethernet MAC doesn't have any unused buffers left, it will drop incomming
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packets (flow control may help with this problem, to some extent).
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The buffers for the IP stack are allocated from the heap, so the total number of
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receive buffers is limited by the available heap size, if this option is selected.
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If unsure, choose n.
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config EMAC_CHECK_LINK_PERIOD_MS
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int "Period(ms) of checking Ethernet linkup status"
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range 1000 5000
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default 2000
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help
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The emac driver uses an internal timer to check the ethernet linkup
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status. Here you should choose a valid the interval time.
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config EMAC_TASK_PRIORITY
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int "EMAC_TASK_PRIORITY"
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default 20
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range 3 22
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help
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Ethernet MAC task priority.
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config EMAC_TASK_STACK_SIZE
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int "Stack Size of EMAC Task"
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default 3072
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range 2000 8000
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help
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Stack Size of Ethernet MAC task.
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endmenu
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