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f0cc5f6c0a
Backport upstream changes to initialize GDM settings and reset PPE Allow GMAC to recognize the special tag to fix PPE packet parsing Improve GRO performance by passing PPE L4 hash as skb hash Signed-off-by: Felix Fietkau <nbd@nbd.name>
34 lines
1.2 KiB
Diff
34 lines
1.2 KiB
Diff
From: MarkLee <Mark-MC.Lee@mediatek.com>
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Date: Wed, 13 Nov 2019 10:38:44 +0800
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Subject: [PATCH] net: ethernet: mediatek: Enable GDM GDMA_DROP_ALL mode
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Enable GDM GDMA_DROP_ALL mode to drop all packet during the
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stop operation. This is recommended by the mt762x HW design
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to drop all packet from GMAC before stopping PDMA.
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Signed-off-by: MarkLee <Mark-MC.Lee@mediatek.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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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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@@ -2310,6 +2310,8 @@ static int mtk_stop(struct net_device *d
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if (!refcount_dec_and_test(ð->dma_refcnt))
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return 0;
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+ mtk_gdm_config(eth, MTK_GDMA_DROP_ALL);
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+
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mtk_tx_irq_disable(eth, MTK_TX_DONE_INT);
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mtk_rx_irq_disable(eth, MTK_RX_DONE_INT);
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napi_disable(ð->tx_napi);
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--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
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+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
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@@ -85,6 +85,7 @@
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#define MTK_GDMA_TCS_EN BIT(21)
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#define MTK_GDMA_UCS_EN BIT(20)
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#define MTK_GDMA_TO_PDMA 0x0
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+#define MTK_GDMA_DROP_ALL 0x7777
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/* Unicast Filter MAC Address Register - Low */
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#define MTK_GDMA_MAC_ADRL(x) (0x508 + (x * 0x1000))
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