netmap ixgbevf mtu

[Joe Buehler]

Attached is a patch that allows fragmented TX with the ixgbevf driver.

For the first TX buffer set the slot length to the full length of the frame and make sure that the slot buffer is fully filled.  For succeeding slots just set the length to the amount of the buffer filled.

Not intended as the perfect solution but it works fine for my situation.

Joe Buehler

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