diff options
Diffstat (limited to 'target/linux/generic/backport-5.10/610-v5.13-40-net-ethernet-mtk_eth_soc-use-napi_consume_skb.patch')
| -rw-r--r-- | target/linux/generic/backport-5.10/610-v5.13-40-net-ethernet-mtk_eth_soc-use-napi_consume_skb.patch | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.10/610-v5.13-40-net-ethernet-mtk_eth_soc-use-napi_consume_skb.patch b/target/linux/generic/backport-5.10/610-v5.13-40-net-ethernet-mtk_eth_soc-use-napi_consume_skb.patch new file mode 100644 index 0000000000..1d1845fa84 --- /dev/null +++ b/target/linux/generic/backport-5.10/610-v5.13-40-net-ethernet-mtk_eth_soc-use-napi_consume_skb.patch @@ -0,0 +1,77 @@ +From c30c4a82739090a2de4a4e3f245355ea4fb3ec14 Mon Sep 17 00:00:00 2001 +From: Felix Fietkau <nbd@nbd.name> +Date: Thu, 22 Apr 2021 22:20:57 -0700 +Subject: [PATCH] net: ethernet: mtk_eth_soc: use napi_consume_skb + +Should improve performance, since it can use bulk free + +Signed-off-by: Felix Fietkau <nbd@nbd.name> +Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/ethernet/mediatek/mtk_eth_soc.c | 19 ++++++++++++------- + 1 file changed, 12 insertions(+), 7 deletions(-) + +--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c ++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c +@@ -858,7 +858,8 @@ static int txd_to_idx(struct mtk_tx_ring + return ((void *)dma - (void *)ring->dma) / sizeof(*dma); + } + +-static void mtk_tx_unmap(struct mtk_eth *eth, struct mtk_tx_buf *tx_buf) ++static void mtk_tx_unmap(struct mtk_eth *eth, struct mtk_tx_buf *tx_buf, ++ bool napi) + { + if (MTK_HAS_CAPS(eth->soc->caps, MTK_QDMA)) { + if (tx_buf->flags & MTK_TX_FLAGS_SINGLE0) { +@@ -890,8 +891,12 @@ static void mtk_tx_unmap(struct mtk_eth + + tx_buf->flags = 0; + if (tx_buf->skb && +- (tx_buf->skb != (struct sk_buff *)MTK_DMA_DUMMY_DESC)) +- dev_kfree_skb_any(tx_buf->skb); ++ (tx_buf->skb != (struct sk_buff *)MTK_DMA_DUMMY_DESC)) { ++ if (napi) ++ napi_consume_skb(tx_buf->skb, napi); ++ else ++ dev_kfree_skb_any(tx_buf->skb); ++ } + tx_buf->skb = NULL; + } + +@@ -1069,7 +1074,7 @@ err_dma: + tx_buf = mtk_desc_to_tx_buf(ring, itxd); + + /* unmap dma */ +- mtk_tx_unmap(eth, tx_buf); ++ mtk_tx_unmap(eth, tx_buf, false); + + itxd->txd3 = TX_DMA_LS0 | TX_DMA_OWNER_CPU; + if (!MTK_HAS_CAPS(eth->soc->caps, MTK_QDMA)) +@@ -1388,7 +1393,7 @@ static int mtk_poll_tx_qdma(struct mtk_e + done[mac]++; + budget--; + } +- mtk_tx_unmap(eth, tx_buf); ++ mtk_tx_unmap(eth, tx_buf, true); + + ring->last_free = desc; + atomic_inc(&ring->free_count); +@@ -1425,7 +1430,7 @@ static int mtk_poll_tx_pdma(struct mtk_e + budget--; + } + +- mtk_tx_unmap(eth, tx_buf); ++ mtk_tx_unmap(eth, tx_buf, true); + + desc = &ring->dma[cpu]; + ring->last_free = desc; +@@ -1627,7 +1632,7 @@ static void mtk_tx_clean(struct mtk_eth + + if (ring->buf) { + for (i = 0; i < MTK_DMA_SIZE; i++) +- mtk_tx_unmap(eth, &ring->buf[i]); ++ mtk_tx_unmap(eth, &ring->buf[i], false); + kfree(ring->buf); + ring->buf = NULL; + } |