net: mediatek: wed: Introduce MT7992 WED support to MT7988 SoC

Introduce the second WDMA RX ring in WED driver for MT7988 SoC since the
Mediatek MT7992 WiFi chipset supports two separated WDMA rings.
Add missing MT7988 configurations to properly support WED for MT7992 in
MT76 driver.

Co-developed-by: Rex Lu <rex.lu@mediatek.com>
Signed-off-by: Rex Lu <rex.lu@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250812-mt7992-wed-support-v3-1-9ada78a819a4@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

5 files changed, 38 insertions, 17 deletions

diff --git a/drivers/net/ethernet/mediatek/mtk_wed.c b/drivers/net/ethernet/mediatek/mtk_wed.c
index 0a80d8f8cff7..3dbb113b792c 100644
--- a/drivers/net/ethernet/mediatek/mtk_wed.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed.c
@@ -59,7 +59,9 @@ struct mtk_wed_flow_block_priv {
 static const struct mtk_wed_soc_data mt7622_data = {
 	.regmap = {
 		.tx_bm_tkid		= 0x088,
-		.wpdma_rx_ring0		= 0x770,
+		.wpdma_rx_ring = {
+			0x770,
+		},
 		.reset_idx_tx_mask	= GENMASK(3, 0),
 		.reset_idx_rx_mask	= GENMASK(17, 16),
 	},
@@ -70,7 +72,9 @@ static const struct mtk_wed_soc_data mt7622_data = {
 static const struct mtk_wed_soc_data mt7986_data = {
 	.regmap = {
 		.tx_bm_tkid		= 0x0c8,
-		.wpdma_rx_ring0		= 0x770,
+		.wpdma_rx_ring = {
+			0x770,
+		},
 		.reset_idx_tx_mask	= GENMASK(1, 0),
 		.reset_idx_rx_mask	= GENMASK(7, 6),
 	},
@@ -81,7 +85,10 @@ static const struct mtk_wed_soc_data mt7986_data = {
 static const struct mtk_wed_soc_data mt7988_data = {
 	.regmap = {
 		.tx_bm_tkid		= 0x0c8,
-		.wpdma_rx_ring0		= 0x7d0,
+		.wpdma_rx_ring = {
+			0x7d0,
+			0x7d8,
+		},
 		.reset_idx_tx_mask	= GENMASK(1, 0),
 		.reset_idx_rx_mask	= GENMASK(7, 6),
 	},
@@ -621,8 +628,8 @@ mtk_wed_amsdu_init(struct mtk_wed_device *dev)
 		return ret;
 	}
 
-	/* eagle E1 PCIE1 tx ring 22 flow control issue */
-	if (dev->wlan.id == 0x7991)
+	/* Kite and Eagle E1 PCIE1 tx ring 22 flow control issue */
+	if (dev->wlan.id == 0x7991 || dev->wlan.id == 0x7992)
 		wed_clr(dev, MTK_WED_AMSDU_FIFO, MTK_WED_AMSDU_IS_PRIOR0_RING);
 
 	wed_set(dev, MTK_WED_CTRL, MTK_WED_CTRL_TX_AMSDU_EN);
@@ -1239,7 +1246,11 @@ mtk_wed_set_wpdma(struct mtk_wed_device *dev)
 		return;
 
 	wed_w32(dev, MTK_WED_WPDMA_RX_GLO_CFG, dev->wlan.wpdma_rx_glo);
-	wed_w32(dev, dev->hw->soc->regmap.wpdma_rx_ring0, dev->wlan.wpdma_rx);
+	wed_w32(dev, dev->hw->soc->regmap.wpdma_rx_ring[0],
+		dev->wlan.wpdma_rx[0]);
+	if (mtk_wed_is_v3_or_greater(dev->hw))
+		wed_w32(dev, dev->hw->soc->regmap.wpdma_rx_ring[1],
+			dev->wlan.wpdma_rx[1]);
 
 	if (!dev->wlan.hw_rro)
 		return;
@@ -2323,6 +2334,16 @@ mtk_wed_start(struct mtk_wed_device *dev, u32 irq_mask)
 		if (!dev->rx_wdma[i].desc)
 			mtk_wed_wdma_rx_ring_setup(dev, i, 16, false);
 
+	if (dev->wlan.hw_rro) {
+		for (i = 0; i < MTK_WED_RX_PAGE_QUEUES; i++) {
+			u32 addr = MTK_WED_RRO_MSDU_PG_CTRL0(i) +
+				   MTK_WED_RING_OFS_COUNT;
+
+			if (!wed_r32(dev, addr))
+				wed_w32(dev, addr, 1);
+		}
+	}
+
 	mtk_wed_hw_init(dev);
 	mtk_wed_configure_irq(dev, irq_mask);
 
diff --git a/drivers/net/ethernet/mediatek/mtk_wed.h b/drivers/net/ethernet/mediatek/mtk_wed.h
index c1f0479d7a71..b49aee9a8b65 100644
--- a/drivers/net/ethernet/mediatek/mtk_wed.h
+++ b/drivers/net/ethernet/mediatek/mtk_wed.h
@@ -17,7 +17,7 @@ struct mtk_wed_wo;
 struct mtk_wed_soc_data {
 	struct {
 		u32 tx_bm_tkid;
-		u32 wpdma_rx_ring0;
+		u32 wpdma_rx_ring[MTK_WED_RX_QUEUES];
 		u32 reset_idx_tx_mask;
 		u32 reset_idx_rx_mask;
 	} regmap;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
index 4a82f8e4c118..36488aa6cc20 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mmio.c
@@ -664,8 +664,8 @@ int mt7915_mmio_wed_init(struct mt7915_dev *dev, void *pdev_ptr,
 					 MT_RXQ_WED_RING_BASE;
 		wed->wlan.wpdma_rx_glo = pci_resource_start(pci_dev, 0) +
 					 MT_WPDMA_GLO_CFG;
-		wed->wlan.wpdma_rx = pci_resource_start(pci_dev, 0) +
-				     MT_RXQ_WED_DATA_RING_BASE;
+		wed->wlan.wpdma_rx[0] = pci_resource_start(pci_dev, 0) +
+					MT_RXQ_WED_DATA_RING_BASE;
 	} else {
 		struct platform_device *plat_dev = pdev_ptr;
 		struct resource *res;
@@ -687,7 +687,7 @@ int mt7915_mmio_wed_init(struct mt7915_dev *dev, void *pdev_ptr,
 		wed->wlan.wpdma_tx = res->start + MT_TXQ_WED_RING_BASE;
 		wed->wlan.wpdma_txfree = res->start + MT_RXQ_WED_RING_BASE;
 		wed->wlan.wpdma_rx_glo = res->start + MT_WPDMA_GLO_CFG;
-		wed->wlan.wpdma_rx = res->start + MT_RXQ_WED_DATA_RING_BASE;
+		wed->wlan.wpdma_rx[0] = res->start + MT_RXQ_WED_DATA_RING_BASE;
 	}
 	wed->wlan.nbuf = MT7915_HW_TOKEN_SIZE;
 	wed->wlan.tx_tbit[0] = is_mt7915(&dev->mt76) ? 4 : 30;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mmio.c b/drivers/net/wireless/mediatek/mt76/mt7996/mmio.c
index 30b40f4a91be..fb2428a9b877 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mmio.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mmio.c
@@ -503,9 +503,9 @@ int mt7996_mmio_wed_init(struct mt7996_dev *dev, void *pdev_ptr,
 		}
 
 		wed->wlan.wpdma_rx_glo = wed->wlan.phy_base + hif1_ofs + MT_WFDMA0_GLO_CFG;
-		wed->wlan.wpdma_rx = wed->wlan.phy_base + hif1_ofs +
-				     MT_RXQ_RING_BASE(MT7996_RXQ_BAND0) +
-				     MT7996_RXQ_BAND0 * MT_RING_SIZE;
+		wed->wlan.wpdma_rx[0] = wed->wlan.phy_base + hif1_ofs +
+					MT_RXQ_RING_BASE(MT7996_RXQ_BAND0) +
+					MT7996_RXQ_BAND0 * MT_RING_SIZE;
 
 		wed->wlan.id = MT7996_DEVICE_ID_2;
 		wed->wlan.tx_tbit[0] = ffs(MT_INT_TX_DONE_BAND2) - 1;
@@ -518,9 +518,9 @@ int mt7996_mmio_wed_init(struct mt7996_dev *dev, void *pdev_ptr,
 
 		wed->wlan.wpdma_rx_glo = wed->wlan.phy_base + MT_WFDMA0_GLO_CFG;
 
-		wed->wlan.wpdma_rx = wed->wlan.phy_base +
-				     MT_RXQ_RING_BASE(MT7996_RXQ_BAND0) +
-				     MT7996_RXQ_BAND0 * MT_RING_SIZE;
+		wed->wlan.wpdma_rx[0] = wed->wlan.phy_base +
+					MT_RXQ_RING_BASE(MT7996_RXQ_BAND0) +
+					MT7996_RXQ_BAND0 * MT_RING_SIZE;
 
 		wed->wlan.wpdma_rx_rro[0] = wed->wlan.phy_base +
 					    MT_RXQ_RING_BASE(MT7996_RXQ_RRO_BAND0) +
diff --git a/include/linux/soc/mediatek/mtk_wed.h b/include/linux/soc/mediatek/mtk_wed.h
index d8949a4ed0dc..c4ff6bab176d 100644
--- a/include/linux/soc/mediatek/mtk_wed.h
+++ b/include/linux/soc/mediatek/mtk_wed.h
@@ -147,7 +147,7 @@ struct mtk_wed_device {
 		u32 wpdma_tx;
 		u32 wpdma_txfree;
 		u32 wpdma_rx_glo;
-		u32 wpdma_rx;
+		u32 wpdma_rx[MTK_WED_RX_QUEUES];
 		u32 wpdma_rx_rro[MTK_WED_RX_QUEUES];
 		u32 wpdma_rx_pg;