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| author | Alexander Lobakin <alexandr.lobakin@intel.com> | 2021-11-23 18:18:33 +0100 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2021-12-28 09:42:25 -0800 |
| commit | 89a354c03b2d097f9d580cc48249ca396d027e68 (patch) | |
| tree | e1fdf5870677402b20b3ed85551b33e32ad7ecf2 | |
| parent | dcb95f06eab84bb3283273a63af8f930bf27c9d7 (diff) | |
| download | linux-89a354c03b2d097f9d580cc48249ca396d027e68.tar.gz linux-89a354c03b2d097f9d580cc48249ca396d027e68.tar.bz2 linux-89a354c03b2d097f9d580cc48249ca396d027e68.zip | |
e1000: 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 element.
e1000 driver runs Tx completion polling cycle right before the Rx
one. Now that e1000 uses napi_consume_skb() to put skbuff_heads of
completed entries into the cache, it will never empty and always
warm at that moment. Switch to the napi_build_skb() to relax mm
pressure on heavy Rx and increase throughput.
Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
| -rw-r--r-- | drivers/net/ethernet/intel/e1000/e1000_main.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c index 975a145d48ef..3f5feb55cfba 100644 --- a/drivers/net/ethernet/intel/e1000/e1000_main.c +++ b/drivers/net/ethernet/intel/e1000/e1000_main.c @@ -4384,7 +4384,7 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter, if (!skb) { unsigned int frag_len = e1000_frag_len(adapter); - skb = build_skb(data - E1000_HEADROOM, frag_len); + skb = napi_build_skb(data - E1000_HEADROOM, frag_len); if (!skb) { adapter->alloc_rx_buff_failed++; break; |