This series contains three 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 9%.
Please refer to the individual commits for more details.
v1->v2: Removed the napi budget increase patch [1]. Instead, that will
be sent out as a more generic series that addresses all AF_XDP
zero-copy capable drivers, as suggested by Jakub. [2]
Cheers,
Björn
[1]
https://lore.kernel.org/netdev/[email protected]/
[2]
https://lore.kernel.org/netdev/20200728131653.3b903...@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com/
Björn Töpel (3):
i40e, xsk: remove HW descriptor prefetch in AF_XDP path
i40e: use 16B HW descriptors instead of 32B
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 | 24 ++++++++++++-------
9 files changed, 47 insertions(+), 38 deletions(-)
base-commit: 079f921e9f4d3992968a2fc5dc3af0a3540853cc
--
2.25.1
