From: Alexander Lobakin Date: Tue, 23 Nov 2021 17:18:36 +0000 (+0100) Subject: ice: switch to napi_build_skb() X-Git-Tag: v5.17-rc1~170^2~113^2~4 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5ce666315848a4cb44485d8cd2c5887998da6606;p=thirdparty%2Fkernel%2Flinux.git ice: 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. ice 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 --- diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c index 47057010b172c..486fc5509d134 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx.c @@ -948,7 +948,7 @@ ice_build_skb(struct ice_rx_ring *rx_ring, struct ice_rx_buf *rx_buf, */ 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;