recipes-wifi/linux-mt76/files/patches-3.x/2007-wifi-mt76-add-SER-support-for-wed3.0.patch

From 487a6e92fb6ce81d043b5a7632133379b8bcfbcb Mon Sep 17 00:00:00 2001
From: mtk27745 <rex.lu@mediatek.com>
Date: Tue, 23 May 2023 12:06:29 +0800
Subject: [PATCH 71/98] wifi: mt76: add SER support for wed3.0

Change-Id: I2711b9dc336fca9a1ae32a8fbf27810a7e27b1e3
---
 dma.c         |  4 +++-
 mt7996/dma.c  | 42 +++++++++++++++++++++++++++++++++++++++---
 mt7996/mac.c  | 47 ++++++++++++++++++++++++++++++++++++++++++++++-
 mt7996/mmio.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 136 insertions(+), 5 deletions(-)

diff --git a/dma.c b/dma.c
index f48ec57..141a97b 100644
--- a/dma.c
+++ b/dma.c
@@ -898,7 +898,9 @@ mt76_dma_rx_reset(struct mt76_dev *dev, enum mt76_rxq_id qid)
 
 	/* reset WED rx queues */
 	mt76_dma_wed_setup(dev, q, true);
-	if (!mt76_queue_is_wed_tx_free(q)) {
+	if (!mt76_queue_is_wed_tx_free(q) &&
+	    !(mt76_queue_is_wed_rro(q) &&
+	    mtk_wed_device_active(&dev->mmio.wed))) {
 		mt76_dma_sync_idx(dev, q);
 		mt76_dma_rx_fill(dev, q);
 	}
diff --git a/mt7996/dma.c b/mt7996/dma.c
index 2397fe5..b2c7ae6 100644
--- a/mt7996/dma.c
+++ b/mt7996/dma.c
@@ -615,11 +615,35 @@ int mt7996_dma_init(struct mt7996_dev *dev)
 	return 0;
 }
 
+static void mt7996_dma_wed_reset(struct mt7996_dev *dev)
+{
+	struct mt76_dev *mdev = &dev->mt76;
+
+	if (!test_bit(MT76_STATE_WED_RESET, &dev->mphy.state))
+		return;
+
+	complete(&mdev->mmio.wed_reset);
+
+	if (!wait_for_completion_timeout(&dev->mt76.mmio.wed_reset_complete,
+					 3 * HZ))
+		dev_err(dev->mt76.dev, "wed reset complete timeout\n");
+}
+
+static void
+mt7996_dma_reset_tx_queue(struct mt7996_dev *dev, struct mt76_queue *q)
+{
+	mt76_queue_reset(dev, q);
+	if (mtk_wed_device_active(&dev->mt76.mmio.wed))
+		mt76_dma_wed_setup(&dev->mt76, q, true);
+}
+
 void mt7996_dma_reset(struct mt7996_dev *dev, bool force)
 {
 	struct mt76_phy *phy2 = dev->mt76.phys[MT_BAND1];
 	struct mt76_phy *phy3 = dev->mt76.phys[MT_BAND2];
 	u32 hif1_ofs = MT_WFDMA0_PCIE1(0) - MT_WFDMA0(0);
+	struct mtk_wed_device *wed = &dev->mt76.mmio.wed;
+	struct mtk_wed_device *wed_hif2 = &dev->mt76.mmio.wed_hif2;
 	int i;
 
 	mt76_clear(dev, MT_WFDMA0_GLO_CFG,
@@ -653,21 +677,33 @@ void mt7996_dma_reset(struct mt7996_dev *dev, bool force)
 	if (force)
 		mt7996_wfsys_reset(dev);
 
+	if (dev->hif2 && mtk_wed_device_active(wed_hif2))
+		mtk_wed_device_dma_reset(wed_hif2);
+
+	if (mtk_wed_device_active(wed))
+		mtk_wed_device_dma_reset(wed);
+
 	mt7996_dma_disable(dev, force);
+	mt7996_dma_wed_reset(dev);
 
 	/* reset hw queues */
 	for (i = 0; i < __MT_TXQ_MAX; i++) {
-		mt76_queue_reset(dev, dev->mphy.q_tx[i]);
+		mt7996_dma_reset_tx_queue(dev, dev->mphy.q_tx[i]);
 		if (phy2)
-			mt76_queue_reset(dev, phy2->q_tx[i]);
+			mt7996_dma_reset_tx_queue(dev, phy2->q_tx[i]);
 		if (phy3)
-			mt76_queue_reset(dev, phy3->q_tx[i]);
+			mt7996_dma_reset_tx_queue(dev, phy3->q_tx[i]);
 	}
 
 	for (i = 0; i < __MT_MCUQ_MAX; i++)
 		mt76_queue_reset(dev, dev->mt76.q_mcu[i]);
 
 	mt76_for_each_q_rx(&dev->mt76, i) {
+		if (mtk_wed_device_active(wed) &&
+		    (mt76_queue_is_wed_rro(&dev->mt76.q_rx[i]) ||
+		    mt76_queue_is_wed_tx_free(&dev->mt76.q_rx[i])))
+			continue;
+
 		mt76_queue_reset(dev, &dev->mt76.q_rx[i]);
 	}
 
diff --git a/mt7996/mac.c b/mt7996/mac.c
index 60ca23b..22cff71 100644
--- a/mt7996/mac.c
+++ b/mt7996/mac.c
@@ -1762,6 +1762,10 @@ mt7996_mac_restart(struct mt7996_dev *dev)
 	/* disable all tx/rx napi */
 	mt76_worker_disable(&dev->mt76.tx_worker);
 	mt76_for_each_q_rx(mdev, i) {
+		if (mtk_wed_device_active(&dev->mt76.mmio.wed) &&
+		    mt76_queue_is_wed_rro(&mdev->q_rx[i]))
+			continue;
+
 		if (mdev->q_rx[i].ndesc)
 			napi_disable(&dev->mt76.napi[i]);
 	}
@@ -1775,6 +1779,10 @@ mt7996_mac_restart(struct mt7996_dev *dev)
 
 	local_bh_disable();
 	mt76_for_each_q_rx(mdev, i) {
+		if (mtk_wed_device_active(&dev->mt76.mmio.wed) &&
+		    mt76_queue_is_wed_rro(&mdev->q_rx[i]))
+			continue;
+
 		if (mdev->q_rx[i].ndesc) {
 			napi_enable(&dev->mt76.napi[i]);
 			napi_schedule(&dev->mt76.napi[i]);
@@ -1949,6 +1957,13 @@ void mt7996_mac_reset_work(struct work_struct *work)
 
 	dev_info(dev->mt76.dev,"\n%s L1 SER recovery start.",
 		 wiphy_name(dev->mt76.hw->wiphy));
+
+	if (mtk_wed_device_active(&dev->mt76.mmio.wed_hif2))
+		mtk_wed_device_stop(&dev->mt76.mmio.wed_hif2);
+
+	if (mtk_wed_device_active(&dev->mt76.mmio.wed))
+		mtk_wed_device_stop(&dev->mt76.mmio.wed);
+
 	ieee80211_stop_queues(mt76_hw(dev));
 	if (phy2)
 		ieee80211_stop_queues(phy2->mt76->hw);
@@ -1972,8 +1987,13 @@ void mt7996_mac_reset_work(struct work_struct *work)
 		cancel_delayed_work_sync(&phy3->mt76->mac_work);
 	}
 	mt76_worker_disable(&dev->mt76.tx_worker);
-	mt76_for_each_q_rx(&dev->mt76, i)
+	mt76_for_each_q_rx(&dev->mt76, i) {
+		if (mtk_wed_device_active(&dev->mt76.mmio.wed) &&
+		    mt76_queue_is_wed_rro(&dev->mt76.q_rx[i]))
+			continue;
+
 		napi_disable(&dev->mt76.napi[i]);
+	}
 	napi_disable(&dev->mt76.tx_napi);
 
 	mutex_lock(&dev->mt76.mutex);
@@ -1996,6 +2016,27 @@ void mt7996_mac_reset_work(struct work_struct *work)
 	/* enable DMA Tx/Tx and interrupt */
 	mt7996_dma_start(dev, false, false);
 
+
+	if (mtk_wed_device_active(&dev->mt76.mmio.wed)) {
+		u32 wed_irq_mask = dev->mt76.mmio.irqmask |
+				   MT_INT_RRO_RX_DONE |
+				   MT_INT_TX_DONE_BAND2;
+
+		if (mtk_wed_get_rx_capa(&dev->mt76.mmio.wed))
+			wed_irq_mask &= ~MT_INT_RX_DONE_RRO_IND;
+
+		mt76_wr(dev, MT_INT_MASK_CSR, wed_irq_mask);
+
+		mtk_wed_device_start_hwrro(&dev->mt76.mmio.wed, wed_irq_mask, true);
+		mt7996_irq_enable(dev, wed_irq_mask);
+		mt7996_irq_disable(dev, 0);
+	}
+
+	if (mtk_wed_device_active(&dev->mt76.mmio.wed_hif2)) {
+		mt76_wr(dev, MT_INT_PCIE1_MASK_CSR, MT_INT_TRX_DONE_EXT);
+		mtk_wed_device_start(&dev->mt76.mmio.wed_hif2, MT_INT_TRX_DONE_EXT);
+	}
+
 	clear_bit(MT76_MCU_RESET, &dev->mphy.state);
 	clear_bit(MT76_RESET, &dev->mphy.state);
 	if (phy2)
@@ -2005,6 +2046,10 @@ void mt7996_mac_reset_work(struct work_struct *work)
 
 	local_bh_disable();
 	mt76_for_each_q_rx(&dev->mt76, i) {
+		if (mtk_wed_device_active(&dev->mt76.mmio.wed) &&
+		    mt76_queue_is_wed_rro(&dev->mt76.q_rx[i]))
+			continue;
+
 		napi_enable(&dev->mt76.napi[i]);
 		napi_schedule(&dev->mt76.napi[i]);
 	}
diff --git a/mt7996/mmio.c b/mt7996/mmio.c
index 2e395d1..631d905 100644
--- a/mt7996/mmio.c
+++ b/mt7996/mmio.c
@@ -6,9 +6,11 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/pci.h>
+#include <linux/rtnetlink.h>
 
 #include "mt7996.h"
 #include "mac.h"
+#include "mcu.h"
 #include "../trace.h"
 #include "../dma.h"
 
@@ -271,6 +273,45 @@ static u32 mt7996_rmw(struct mt76_dev *mdev, u32 offset, u32 mask, u32 val)
 	return val;
 }
 
+#ifdef CONFIG_NET_MEDIATEK_SOC_WED
+static int mt7996_mmio_wed_reset(struct mtk_wed_device *wed)
+{
+	struct mt76_dev *mdev = container_of(wed, struct mt76_dev, mmio.wed);
+	struct mt7996_dev *dev = container_of(mdev, struct mt7996_dev, mt76);
+	struct mt76_phy *mphy = &dev->mphy;
+	int ret;
+
+	ASSERT_RTNL();
+
+	if (test_and_set_bit(MT76_STATE_WED_RESET, &mphy->state))
+		return -EBUSY;
+
+	ret = mt7996_mcu_set_ser(dev, UNI_CMD_SER_TRIGGER, UNI_CMD_SER_SET_RECOVER_L1,
+				 mphy->band_idx);
+	if (ret)
+		goto out;
+
+	rtnl_unlock();
+	if (!wait_for_completion_timeout(&mdev->mmio.wed_reset, 20 * HZ)) {
+		dev_err(mdev->dev, "wed reset timeout\n");
+		ret = -ETIMEDOUT;
+	}
+	rtnl_lock();
+out:
+	clear_bit(MT76_STATE_WED_RESET, &mphy->state);
+
+	return ret;
+}
+
+static void mt7996_mmio_wed_reset_complete(struct mtk_wed_device *wed)
+{
+	struct mt76_dev *dev = container_of(wed, struct mt76_dev, mmio.wed);
+
+	complete(&dev->mmio.wed_reset_complete);
+}
+
+#endif
+
 int mt7996_mmio_wed_init(struct mt7996_dev *dev, void *pdev_ptr,
 			 bool hif2, int *irq)
 {
@@ -387,6 +428,13 @@ int mt7996_mmio_wed_init(struct mt7996_dev *dev, void *pdev_ptr,
 	wed->wlan.release_rx_buf = mt76_mmio_wed_release_rx_buf;
 	wed->wlan.offload_enable = mt76_mmio_wed_offload_enable;
 	wed->wlan.offload_disable = mt76_mmio_wed_offload_disable;
+	if (hif2) {
+		wed->wlan.reset = NULL;
+		wed->wlan.reset_complete = NULL;
+	} else {
+		wed->wlan.reset = mt7996_mmio_wed_reset;
+		wed->wlan.reset_complete = mt7996_mmio_wed_reset_complete;
+	}
 
 	if (mtk_wed_device_attach(wed))
 		return 0;
-- 
2.18.0