From: Alexander Lobakin Date: Tue, 23 Nov 2021 17:18:40 +0000 (+0100) Subject: ixgbevf: switch to napi_build_skb() X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=c15500198916cb6f553b43f63070990b8d079b49;p=linux.git ixgbevf: 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. ixgbevf 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: Konrad Jankowski Signed-off-by: Tony Nguyen --- diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c index b1dfbaff8b31e..ea73fb3026bc5 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c @@ -944,7 +944,7 @@ static struct sk_buff *ixgbevf_build_skb(struct ixgbevf_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;