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File extension was truncated for
pending-5.4/770-11-net-ethernet-mtk_eth_soc-avoid-rearming-interrupt-if.pa
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
(cherry picked from commit 487b7ae5eb)
36 lines
905 B
Diff
36 lines
905 B
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Fri, 4 Sep 2020 18:14:05 +0200
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Subject: [PATCH] net: ethernet: mtk_eth_soc: avoid rearming interrupt if
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napi_complete returns false
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Reduces unnecessary interrupts
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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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@@ -1515,8 +1515,8 @@ static int mtk_napi_tx(struct napi_struc
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if (status & MTK_TX_DONE_INT)
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return budget;
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- napi_complete(napi);
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- mtk_tx_irq_enable(eth, MTK_TX_DONE_INT);
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+ if (napi_complete(napi))
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+ mtk_tx_irq_enable(eth, MTK_TX_DONE_INT);
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return tx_done;
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}
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@@ -1549,8 +1549,9 @@ poll_again:
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remain_budget -= rx_done;
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goto poll_again;
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}
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- napi_complete(napi);
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- mtk_rx_irq_enable(eth, MTK_RX_DONE_INT);
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+
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+ if (napi_complete(napi))
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+ mtk_rx_irq_enable(eth, MTK_RX_DONE_INT);
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return rx_done + budget - remain_budget;
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}
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