From: Deren Wu deren.wu@mediatek.com
[ Upstream commit 0844947ccf64ea45edf6619ae2ba6dd9098b3308 ]
Fix the wrong WFDMA settings to improve TX performance.
Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt7925 chips") Signed-off-by: Deren Wu deren.wu@mediatek.com Signed-off-by: Ming Yen Hsieh mingyen.hsieh@mediatek.com Signed-off-by: Felix Fietkau nbd@nbd.name Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/mediatek/mt76/mt792x_dma.c | 13 ++++++++++--- drivers/net/wireless/mediatek/mt76/mt792x_regs.h | 5 +++++ 2 files changed, 15 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt792x_dma.c b/drivers/net/wireless/mediatek/mt76/mt792x_dma.c index 488326ce5ed4d..8fa36b59e738d 100644 --- a/drivers/net/wireless/mediatek/mt76/mt792x_dma.c +++ b/drivers/net/wireless/mediatek/mt76/mt792x_dma.c @@ -123,14 +123,13 @@ static void mt792x_dma_prefetch(struct mt792x_dev *dev)
int mt792x_dma_enable(struct mt792x_dev *dev) { - if (is_mt7925(&dev->mt76)) - mt76_rmw(dev, MT_UWFDMA0_GLO_CFG_EXT1, BIT(28), BIT(28)); - /* configure perfetch settings */ mt792x_dma_prefetch(dev);
/* reset dma idx */ mt76_wr(dev, MT_WFDMA0_RST_DTX_PTR, ~0); + if (is_mt7925(&dev->mt76)) + mt76_wr(dev, MT_WFDMA0_RST_DRX_PTR, ~0);
/* configure delay interrupt */ mt76_wr(dev, MT_WFDMA0_PRI_DLY_INT_CFG0, 0); @@ -140,12 +139,20 @@ int mt792x_dma_enable(struct mt792x_dev *dev) MT_WFDMA0_GLO_CFG_FIFO_LITTLE_ENDIAN | MT_WFDMA0_GLO_CFG_CLK_GAT_DIS | MT_WFDMA0_GLO_CFG_OMIT_TX_INFO | + FIELD_PREP(MT_WFDMA0_GLO_CFG_DMA_SIZE, 3) | + MT_WFDMA0_GLO_CFG_FIFO_DIS_CHECK | + MT_WFDMA0_GLO_CFG_RX_WB_DDONE | MT_WFDMA0_GLO_CFG_CSR_DISP_BASE_PTR_CHAIN_EN | MT_WFDMA0_GLO_CFG_OMIT_RX_INFO_PFET2);
mt76_set(dev, MT_WFDMA0_GLO_CFG, MT_WFDMA0_GLO_CFG_TX_DMA_EN | MT_WFDMA0_GLO_CFG_RX_DMA_EN);
+ if (is_mt7925(&dev->mt76)) { + mt76_rmw(dev, MT_UWFDMA0_GLO_CFG_EXT1, BIT(28), BIT(28)); + mt76_set(dev, MT_WFDMA0_INT_RX_PRI, 0x0F00); + mt76_set(dev, MT_WFDMA0_INT_TX_PRI, 0x7F00); + } mt76_set(dev, MT_WFDMA_DUMMY_CR, MT_WFDMA_NEED_REINIT);
/* enable interrupts for TX/RX rings */ diff --git a/drivers/net/wireless/mediatek/mt76/mt792x_regs.h b/drivers/net/wireless/mediatek/mt76/mt792x_regs.h index d7f9b24cd665f..458cfd0260b13 100644 --- a/drivers/net/wireless/mediatek/mt76/mt792x_regs.h +++ b/drivers/net/wireless/mediatek/mt76/mt792x_regs.h @@ -292,9 +292,12 @@ #define MT_WFDMA0_GLO_CFG_TX_DMA_BUSY BIT(1) #define MT_WFDMA0_GLO_CFG_RX_DMA_EN BIT(2) #define MT_WFDMA0_GLO_CFG_RX_DMA_BUSY BIT(3) +#define MT_WFDMA0_GLO_CFG_DMA_SIZE GENMASK(5, 4) #define MT_WFDMA0_GLO_CFG_TX_WB_DDONE BIT(6) #define MT_WFDMA0_GLO_CFG_FW_DWLD_BYPASS_DMASHDL BIT(9) +#define MT_WFDMA0_GLO_CFG_FIFO_DIS_CHECK BIT(11) #define MT_WFDMA0_GLO_CFG_FIFO_LITTLE_ENDIAN BIT(12) +#define MT_WFDMA0_GLO_CFG_RX_WB_DDONE BIT(13) #define MT_WFDMA0_GLO_CFG_CSR_DISP_BASE_PTR_CHAIN_EN BIT(15) #define MT_WFDMA0_GLO_CFG_OMIT_RX_INFO_PFET2 BIT(21) #define MT_WFDMA0_GLO_CFG_OMIT_RX_INFO BIT(27) @@ -322,6 +325,8 @@
#define MT_WFDMA0_RST_DTX_PTR MT_WFDMA0(0x20c) #define MT_WFDMA0_RST_DRX_PTR MT_WFDMA0(0x280) +#define MT_WFDMA0_INT_RX_PRI MT_WFDMA0(0x298) +#define MT_WFDMA0_INT_TX_PRI MT_WFDMA0(0x29c) #define MT_WFDMA0_GLO_CFG_EXT0 MT_WFDMA0(0x2b0) #define MT_WFDMA0_CSR_TX_DMASHDL_ENABLE BIT(6) #define MT_WFDMA0_PRI_DLY_INT_CFG0 MT_WFDMA0(0x2f0)