iflib: remove transmit prefetchingHEADmain

Remove prefetching from the transmit path of iflib in the interest of
increased performance and reduced complexity. Details regarding the
performance penalties of prefetching can be found in the differential
review.

Note this prefetching was only done on link speeds of 10Gb/s and
above, so the change is a no-op (or perhaps slight performance
improvement simply due to the code simplification) for slower
interfaces.

Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D53674
Reviewed by: kbowling, markj, mjg

0 files changed, 0 insertions, 0 deletions