From fa441f0fa8bc4d8231734aa8512d55dfb74fb598 Mon Sep 17 00:00:00 2001 From: Alexander Lobakin Date: Tue, 23 Nov 2021 18:18:37 +0100 Subject: igb: 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. igb 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 Reviewed-by: Michal Swiatkowski Tested-by: Gurucharan G Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/igb/igb_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index ffe457e395a1..47ece02fce99 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -8367,7 +8367,7 @@ static struct sk_buff *igb_build_skb(struct igb_ring *rx_ring, net_prefetch(xdp->data_meta); /* build an skb around the page buffer */ - skb = build_skb(xdp->data_hard_start, truesize); + skb = napi_build_skb(xdp->data_hard_start, truesize); if (unlikely(!skb)) return NULL; -- cgit v1.2.3