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5adf0dcafc
Merged upstream: bcm27xx/patches-5.4/950-1014-Revert-mailbox-avoid-timer-start-from-callback.patch generic/backport-5.4/080-wireguard-0021-crypto-blake2s-generic-C-library-implementation-and-.patch Manually adapted: layerscape/patches-5.4/801-audio-0005-Revert-ASoC-fsl_sai-Add-support-for-SAI-new-version.patch oxnas/patches-5.4/100-oxnas-clk-plla-pllb.patch Compile-tested: lantiq/xrx200 Run-tested: lantiq/xrx200 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
73 lines
2.0 KiB
Diff
73 lines
2.0 KiB
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Mon, 8 Jun 2020 17:01:12 +0200
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Subject: [PATCH] net: ethernet: mtk_eth_soc: use napi_consume_skb
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Should improve performance, since it can use bulk free
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
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+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
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@@ -885,7 +885,8 @@ static int txd_to_idx(struct mtk_tx_ring
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return ((void *)dma - (void *)ring->dma) / sizeof(*dma);
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}
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-static void mtk_tx_unmap(struct mtk_eth *eth, struct mtk_tx_buf *tx_buf)
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+static void mtk_tx_unmap(struct mtk_eth *eth, struct mtk_tx_buf *tx_buf,
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+ bool napi)
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{
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if (MTK_HAS_CAPS(eth->soc->caps, MTK_QDMA)) {
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if (tx_buf->flags & MTK_TX_FLAGS_SINGLE0) {
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@@ -917,8 +918,12 @@ static void mtk_tx_unmap(struct mtk_eth
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tx_buf->flags = 0;
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if (tx_buf->skb &&
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- (tx_buf->skb != (struct sk_buff *)MTK_DMA_DUMMY_DESC))
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- dev_kfree_skb_any(tx_buf->skb);
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+ (tx_buf->skb != (struct sk_buff *)MTK_DMA_DUMMY_DESC)) {
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+ if (napi)
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+ napi_consume_skb(tx_buf->skb, napi);
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+ else
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+ dev_kfree_skb_any(tx_buf->skb);
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+ }
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tx_buf->skb = NULL;
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}
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@@ -1096,7 +1101,7 @@ err_dma:
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tx_buf = mtk_desc_to_tx_buf(ring, itxd);
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/* unmap dma */
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- mtk_tx_unmap(eth, tx_buf);
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+ mtk_tx_unmap(eth, tx_buf, false);
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itxd->txd3 = TX_DMA_LS0 | TX_DMA_OWNER_CPU;
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if (!MTK_HAS_CAPS(eth->soc->caps, MTK_QDMA))
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@@ -1417,7 +1422,7 @@ static int mtk_poll_tx_qdma(struct mtk_e
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done[mac]++;
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budget--;
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}
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- mtk_tx_unmap(eth, tx_buf);
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+ mtk_tx_unmap(eth, tx_buf, true);
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ring->last_free = desc;
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atomic_inc(&ring->free_count);
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@@ -1454,7 +1459,7 @@ static int mtk_poll_tx_pdma(struct mtk_e
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budget--;
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}
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- mtk_tx_unmap(eth, tx_buf);
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+ mtk_tx_unmap(eth, tx_buf, true);
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desc = &ring->dma[cpu];
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ring->last_free = desc;
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@@ -1656,7 +1661,7 @@ static void mtk_tx_clean(struct mtk_eth
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if (ring->buf) {
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for (i = 0; i < MTK_DMA_SIZE; i++)
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- mtk_tx_unmap(eth, &ring->buf[i]);
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+ mtk_tx_unmap(eth, &ring->buf[i], false);
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kfree(ring->buf);
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ring->buf = NULL;
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}
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