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[net-next,0/4] i40e driver performance tweaks for AF_XDP

Message ID 20200702153730.575738-1-bjorn.topel@gmail.com
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Series i40e driver performance tweaks for AF_XDP | expand

Message

Björn Töpel July 2, 2020, 3:37 p.m. UTC 
This series contains four patches worth of driver tweaks for the i40e
AF_XDP Rx path, that in total improves the Rx performance (rx_drop 64B
packets-per-second) with 17%.

Please refer to the individual commits for more details.


Cheers,
Björn


Björn Töpel (4):
  i40e, xsk: remove HW descriptor prefetch in AF_XDP path
  i40e: use 16B HW descriptors instead of 32B
  i40e, xsk: increase budget for AF_XDP path
  i40e, xsk: move buffer allocation out of the Rx processing loop

 drivers/net/ethernet/intel/i40e/i40e.h        |  2 +-
 .../net/ethernet/intel/i40e/i40e_debugfs.c    | 10 +++----
 drivers/net/ethernet/intel/i40e/i40e_main.c   |  4 +--
 drivers/net/ethernet/intel/i40e/i40e_trace.h  |  6 ++--
 drivers/net/ethernet/intel/i40e/i40e_txrx.c   | 19 +++++++++++--
 drivers/net/ethernet/intel/i40e/i40e_txrx.h   |  2 +-
 .../ethernet/intel/i40e/i40e_txrx_common.h    | 13 ---------
 drivers/net/ethernet/intel/i40e/i40e_type.h   |  5 +++-
 drivers/net/ethernet/intel/i40e/i40e_xsk.c    | 28 +++++++++++++------
 9 files changed, 50 insertions(+), 39 deletions(-)


base-commit: 23212a70077311396cda2823d627317c25e6e5d1