86bc29e4a8
[mac80211] ca5ee6e mac80211: Fix potential endless loop 2c14710 mac80211: add more AQL fixes/improvements 91fb3ce mac80211: remove an obsolete patch that is no longer doing anything useful acf1733 mac80211: add preliminary support for enabling 802.11ax in config d717343 mac80211: update encap offload patches to the latest version 673062f mac80211: allow bigger A-MSDU sizes in VHT, even if HT is limited caf7277 mac80211: do not allow bigger VHT MPDUs than the hardware supports cd36c0d mac80211: select the first available channel for 5GHz interfaces 1c6d456 mac80211: fix regression in station connection monitor optimization 4bd7689 mac80211: update sta connection monitor regression fix [target] Sync: at91, ath25, ath79, lantiq, mediatek, mvebu.
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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