i40e: read the XDP program once per NAPI

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Similar to how it's done in the ice driver since 'eb087cd828 ("ice:
propagate xdp_ring onto rx_ring")', read the XDP program once per NAPI
instead of once per descriptor cleaned. I measured an improvement in
throughput of 2% for the AF_XDP xdpsock l2fwd benchmark for zero copy mode
and 1% for copy mode.

Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
Link: https://lore.kernel.org/r/20220623100852.7867-1-ciara.loftus@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Ciara Loftus 2022-06-23 10:08:52 +00:00 • committed by Jakub Kicinski

parent 85a1c6536f

commit 78f3193157

2 changed files with 16 additions and 12 deletions

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11

drivers/net/ethernet/intel/i40e/i40e_txrx.c

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17

drivers/net/ethernet/intel/i40e/i40e_xsk.c

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