Hello,
After messing with the driver code it seems that polling is used to
receive packets but direct function calls are used used to transmit
them. (e1000_xmit_frame or the e1000_tx_pqueue variant). So if you
have a device with 256 descriptors then you would copy some number of
descriptors into the ring and then call e1000_tx_eob (when BURST number
of packets is reached), right?
Roman
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