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ice: Do not call ice_finalize_xdp_rx() unnecessarily
authorMaciej Fijalkowski <maciej.fijalkowski@intel.com>
Tue, 31 Jan 2023 20:45:01 +0000 (21:45 +0100)
committerDaniel Borkmann <daniel@iogearbox.net>
Wed, 1 Feb 2023 22:30:27 +0000 (23:30 +0100)
commit9070fe3da0b126044c3cffd169d5fb2565365a0e
tree3c372fa36bdfbc729c7719ea085b1f7dde25313d
parent60bc72b3c4e9127f29686770005da40b10be0576
ice: Do not call ice_finalize_xdp_rx() unnecessarily

Currently ice_finalize_xdp_rx() is called only when xdp_prog is present
on VSI, which is a good thing. However, this optimization can be
enhanced and check only if any of the XDP_TX/XDP_REDIRECT took place in
current Rx processing. Non-zero value of @xdp_xmit indicates that
xdp_prog is present on VSI. This way XDP_DROP-based workloads will not
suffer from unnecessary calls to external function.

Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Link: https://lore.kernel.org/bpf/20230131204506.219292-9-maciej.fijalkowski@intel.com
drivers/net/ethernet/intel/ice/ice_txrx.c