This helps to keep the tx descriptor ring at max capacity when the system is otherwise loaded. Now ready packets are moved from cmd_list to the transmit descriptor ring directly in the interrupt handler and not when the deferred function runs. Signed-off-by: Shaun Ruffell <sruffell@digium.com> Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>