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iavf: switch to napi_build_skb()
authorAlexander Lobakin <alexandr.lobakin@intel.com>
Tue, 23 Nov 2021 17:18:35 +0000 (18:18 +0100)
committerTony Nguyen <anthony.l.nguyen@intel.com>
Tue, 28 Dec 2021 17:42:33 +0000 (09:42 -0800)
commitef687d61e0e999575c8d781e1edd04b4a388440f
tree19ac59a2f2adab747e94858cd05624d330b45912
parent6e19cf7d3815c009bfd213832a6feac4bafc37ae
iavf: switch to napi_build_skb()

napi_build_skb() reuses per-cpu NAPI skbuff_head cache in order
to save some cycles on freeing/allocating skbuff_heads on every
new Rx or completed Tx.
iavf driver runs Tx completion polling cycle right before the Rx
one and uses napi_consume_skb() to feed the cache with skbuff_heads
of completed entries, so it's never empty and always warm at that
moment. Switch to the napi_build_skb() to relax mm pressure on
heavy Rx.

Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
drivers/net/ethernet/intel/iavf/iavf_txrx.c