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1cc1f1cd4f
The hardware reports descriptor and packet completions separately for the transmit ring. We currently ignore descriptor completions (since we cannot free up the transmit buffers in the queue page list and advance the consumer counter until the packet has also completed). Now that transmit completions are written out immediately (instead of being delayed until 128 bytes of completions are available), there is no value in retaining the descriptor completions. Omit descriptor completions entirely, and reduce the transmit fill level back down to its original value. Signed-off-by: Michael Brown <mcb30@ipxe.org>
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