net: thunderbolt: Update ring indices only after all frames are queued

Take advantage of the new API and update the ring producer/consumer
indices only after the frames have been queued. This reduces the number
of doorbell register writes from one per frame to one per batch.

Measured using iperf3 over a Thunderbolt/USB4 net connection between
Arrow Lake and Panther Lake systems (average of three runs):

  before         after
  ~14.3 Gbit/s   ~15.3 Gbit/s

Assisted-by: LLM
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>

0 files changed, 0 insertions, 0 deletions