From: Sieng Piaw Liew Date: Thu, 23 Jun 2022 04:49:28 +0000 (+0800) Subject: bmips: switch to napi_build_skb() to reuse skbuff_heads X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=330cbcc09c4d142279b958e6d0e4b764dacd686c;p=openwrt%2Fstaging%2Fnbd.git bmips: switch to napi_build_skb() to reuse skbuff_heads napi_build_skb() reuses NAPI skbuff_head cache in order to save some cycles on freeing/allocating skbuff_heads on every new rx or completed tx. Use napi_consume_skb() to feed the cache with skbuff_heads of completed tx so it's never empty. Signed-off-by: Sieng Piaw Liew --- diff --git a/target/linux/bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c b/target/linux/bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c index 854bcc0a8c..962f9ac887 100644 --- a/target/linux/bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c +++ b/target/linux/bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c @@ -407,7 +407,7 @@ static int bcm6368_enetsw_receive_queue(struct net_device *dev, int budget) frag_size = priv->rx_frag_size; } - skb = build_skb(buf, frag_size); + skb = napi_build_skb(buf, frag_size); if (unlikely(!skb)) { skb_free_frag(buf); dev->stats.rx_dropped++; @@ -475,7 +475,7 @@ static int bcm6368_enetsw_tx_reclaim(struct net_device *dev, int force) if (desc->len_stat & DMADESC_UNDER_MASK) dev->stats.tx_errors++; - dev_kfree_skb(skb); + napi_consume_skb(skb, !force); released++; }