linux-kernel - [PATCH net-next 2/4] net: ethernet: mtk_eth_soc: use napi_build

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Message-ID: <20241015110940.63702-2-nbd@nbd.name>
Date: Tue, 15 Oct 2024 13:09:36 +0200
From: Felix Fietkau <nbd@....name>
To: netdev@...r.kernel.org,
	Sean Wang <sean.wang@...iatek.com>,
	Mark Lee <Mark-MC.Lee@...iatek.com>,
	Lorenzo Bianconi <lorenzo@...nel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org
Subject: [PATCH net-next 2/4] net: ethernet: mtk_eth_soc: use napi_build_skb()

The napi_build_skb() can reuse the skb in skb cache per CPU or
can allocate skbs in bulk, which helps improve the performance.

Signed-off-by: Felix Fietkau <nbd@....name>
---
 drivers/net/ethernet/mediatek/mtk_eth_soc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index 4a9cf06bdff5..4e4ece5e257a 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -2137,7 +2137,7 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget,
 			if (ret != XDP_PASS)
 				goto skip_rx;
 
-			skb = build_skb(data, PAGE_SIZE);
+			skb = napi_build_skb(data, PAGE_SIZE);
 			if (unlikely(!skb)) {
 				page_pool_put_full_page(ring->page_pool,
 							page, true);
@@ -2175,7 +2175,7 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget,
 			dma_unmap_single(eth->dma_dev, ((u64)trxd.rxd1 | addr64),
 					 ring->buf_size, DMA_FROM_DEVICE);
 
-			skb = build_skb(data, ring->frag_size);
+			skb = napi_build_skb(data, ring->frag_size);
 			if (unlikely(!skb)) {
 				netdev->stats.rx_dropped++;
 				skb_free_frag(data);
-- 
2.47.0