Fix one issue in virtio TX: it needs one more vring descriptor to hold the
virtio
header when transmitting packets, it is used later to determine whether to
free
more entries from used vring.
It fixes failing to transmit any packet with 1 segment in the circumstance of
only
1 descripto
2014-10-15 11:11, Ouyang Changchun:
> Fix one issue in virtio TX: it needs one more vring descriptor to hold the
> virtio
> header when transmitting packets, it is used later to determine whether to
> free
> more entries from used vring.
> It fixes failing to transmit any packet with 1 se
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