Merge branch 'refactor-mtk_wed-code-to-introduce-ser-support'

Lorenzo Bianconi says:

====================
refactor mtk_wed code to introduce SER support

Refactor mtk_wed support in order to introduce proper integration for hw reset
between mtk_eth_soc/mtk_wed and mt76 drivers.
====================

Link: https://lore.kernel.org/r/cover.1669303154.git.lorenzo@kernel.orgSigned-off-by: Paolo Abeni <pabeni@redhat.com>

drivers/net/ethernet/mediatek/mtk_wed_regs.h

@@ -24,11 +24,15 @@ struct mtk_wdma_desc {
 
 #define MTK_WED_RESET					0x008
 #define MTK_WED_RESET_TX_BM				BIT(0)
+#define MTK_WED_RESET_RX_BM				BIT(1)
 #define MTK_WED_RESET_TX_FREE_AGENT			BIT(4)
 #define MTK_WED_RESET_WPDMA_TX_DRV			BIT(8)
 #define MTK_WED_RESET_WPDMA_RX_DRV			BIT(9)
+#define MTK_WED_RESET_WPDMA_RX_D_DRV			BIT(10)
 #define MTK_WED_RESET_WPDMA_INT_AGENT			BIT(11)
 #define MTK_WED_RESET_WED_TX_DMA			BIT(12)
+#define MTK_WED_RESET_WED_RX_DMA			BIT(13)
+#define MTK_WED_RESET_WDMA_TX_DRV			BIT(16)
 #define MTK_WED_RESET_WDMA_RX_DRV			BIT(17)
 #define MTK_WED_RESET_WDMA_INT_AGENT			BIT(19)
 #define MTK_WED_RESET_RX_RRO_QM				BIT(20)
@@ -158,6 +162,8 @@ struct mtk_wdma_desc {
 #define MTK_WED_RESET_IDX				0x20c
 #define MTK_WED_RESET_IDX_TX				GENMASK(3, 0)
 #define MTK_WED_RESET_IDX_RX				GENMASK(17, 16)
+#define MTK_WED_RESET_IDX_RX_V2				GENMASK(7, 6)
+#define MTK_WED_RESET_WPDMA_IDX_RX			GENMASK(31, 30)
 
 #define MTK_WED_TX_MIB(_n)				(0x2a0 + (_n) * 4)
 #define MTK_WED_RX_MIB(_n)				(0x2e0 + (_n) * 4)
@@ -267,6 +273,9 @@ struct mtk_wdma_desc {
 
 #define MTK_WED_WPDMA_RX_D_GLO_CFG			0x75c
 #define MTK_WED_WPDMA_RX_D_RX_DRV_EN			BIT(0)
+#define MTK_WED_WPDMA_RX_D_RX_DRV_BUSY			BIT(1)
+#define MTK_WED_WPDMA_RX_D_FSM_RETURN_IDLE		BIT(3)
+#define MTK_WED_WPDMA_RX_D_RST_INIT_COMPLETE		BIT(4)
 #define MTK_WED_WPDMA_RX_D_INIT_PHASE_RXEN_SEL		GENMASK(11, 7)
 #define MTK_WED_WPDMA_RX_D_RXD_READ_LEN			GENMASK(31, 24)
 

drivers/net/wireless/mediatek/mt76/dma.c

@@ -502,7 +502,7 @@ mt76_dma_wed_setup(struct mt76_dev *dev, struct mt76_queue *q)
 
 	switch (type) {
 	case MT76_WED_Q_TX:
-		ret = mtk_wed_device_tx_ring_setup(wed, ring, q->regs);
+		ret = mtk_wed_device_tx_ring_setup(wed, ring, q->regs, false);
 		if (!ret)
 			q->wed_regs = wed->tx_ring[ring].reg_base;
 		break;

include/linux/soc/mediatek/mtk_wed.h

@@ -158,7 +158,7 @@ struct mtk_wed_device {
 struct mtk_wed_ops {
 	int (*attach)(struct mtk_wed_device *dev);
 	int (*tx_ring_setup)(struct mtk_wed_device *dev, int ring,
-			     void __iomem *regs);
+			     void __iomem *regs, bool reset);
 	int (*rx_ring_setup)(struct mtk_wed_device *dev, int ring,
 			     void __iomem *regs);
 	int (*txfree_ring_setup)(struct mtk_wed_device *dev,
@@ -216,8 +216,8 @@ mtk_wed_get_rx_capa(struct mtk_wed_device *dev)
 #define mtk_wed_device_active(_dev) !!(_dev)->ops
 #define mtk_wed_device_detach(_dev) (_dev)->ops->detach(_dev)
 #define mtk_wed_device_start(_dev, _mask) (_dev)->ops->start(_dev, _mask)
-#define mtk_wed_device_tx_ring_setup(_dev, _ring, _regs) \
-	(_dev)->ops->tx_ring_setup(_dev, _ring, _regs)
+#define mtk_wed_device_tx_ring_setup(_dev, _ring, _regs, _reset) \
+	(_dev)->ops->tx_ring_setup(_dev, _ring, _regs, _reset)
 #define mtk_wed_device_txfree_ring_setup(_dev, _regs) \
 	(_dev)->ops->txfree_ring_setup(_dev, _regs)
 #define mtk_wed_device_reg_read(_dev, _reg) \
@@ -234,6 +234,8 @@ mtk_wed_get_rx_capa(struct mtk_wed_device *dev)
 	(_dev)->ops->ppe_check(_dev, _skb, _reason, _hash)
 #define mtk_wed_device_update_msg(_dev, _id, _msg, _len) \
 	(_dev)->ops->msg_update(_dev, _id, _msg, _len)
+#define mtk_wed_device_stop(_dev) (_dev)->ops->stop(_dev)
+#define mtk_wed_device_dma_reset(_dev) (_dev)->ops->reset_dma(_dev)
 #else
 static inline bool mtk_wed_device_active(struct mtk_wed_device *dev)
 {
@@ -241,7 +243,7 @@ static inline bool mtk_wed_device_active(struct mtk_wed_device *dev)
 }
 #define mtk_wed_device_detach(_dev) do {} while (0)
 #define mtk_wed_device_start(_dev, _mask) do {} while (0)
-#define mtk_wed_device_tx_ring_setup(_dev, _ring, _regs) -ENODEV
+#define mtk_wed_device_tx_ring_setup(_dev, _ring, _regs, _reset) -ENODEV
 #define mtk_wed_device_txfree_ring_setup(_dev, _ring, _regs) -ENODEV
 #define mtk_wed_device_reg_read(_dev, _reg) 0
 #define mtk_wed_device_reg_write(_dev, _reg, _val) do {} while (0)
@@ -250,6 +252,8 @@ static inline bool mtk_wed_device_active(struct mtk_wed_device *dev)
 #define mtk_wed_device_rx_ring_setup(_dev, _ring, _regs) -ENODEV
 #define mtk_wed_device_ppe_check(_dev, _skb, _reason, _hash)  do {} while (0)
 #define mtk_wed_device_update_msg(_dev, _id, _msg, _len) -ENODEV
+#define mtk_wed_device_stop(_dev) do {} while (0)
+#define mtk_wed_device_dma_reset(_dev) do {} while (0)
 #endif
 
 #endif