Currently, a packet being read is split into header and data buffers.
Change to a single buffer to simplify logic in drivers, especially
for those that receive packets with variable sized headers.
This change also implements the pending send size functionality for
the receive buffer.
Change-Id: Ic4a3698fcfe813fbcf4fd9c1941102b5adaeb3b2
Reviewed-on: https://review.haiku-os.org/c/haiku/+/10418
Tested-by: Commit checker robot <[email protected]>
Reviewed-by: Jérôme Duval <[email protected]>
John Davis
480c96550c