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The Tx and Rx timestamped packets are handled through separate
queues.  Here we set them up, service them, and tear them down
along with the normal Tx and Rx queues.
Signed-off-by: Allen Hubbe <allenbh@pensando.io>
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>